WO2005064199A1 - 車両用駆動装置、その制御方法および制御装置 - Google Patents
車両用駆動装置、その制御方法および制御装置 Download PDFInfo
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- WO2005064199A1 WO2005064199A1 PCT/JP2004/019743 JP2004019743W WO2005064199A1 WO 2005064199 A1 WO2005064199 A1 WO 2005064199A1 JP 2004019743 W JP2004019743 W JP 2004019743W WO 2005064199 A1 WO2005064199 A1 WO 2005064199A1
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- transmission
- carrier
- gear
- sun gear
- ring gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
- B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/30—Control strategies involving selection of transmission gear ratio
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/445—Differential gearing distribution type
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/54—Transmission for changing ratio
- B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
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- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
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- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
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- B60W20/00—Control systems specially adapted for hybrid vehicles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/62—Gearings having three or more central gears
- F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
- F16H3/727—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with at least two dynamo electric machines for creating an electric power path inside the gearing, e.g. using generator and motor for a variable power torque path
- F16H3/728—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with at least two dynamo electric machines for creating an electric power path inside the gearing, e.g. using generator and motor for a variable power torque path with means to change ratio in the mechanical gearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16H—GEARING
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- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
- F16H2061/0223—Generating of new shift maps, i.e. methods for determining shift points for a schedule by taking into account driveline and vehicle conditions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16H—GEARING
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- F16H61/66—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings
- F16H2061/6602—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with at least two dynamo-electric machines for creating an electric power path inside the transmission device, e.g. using generator and motor for a variable power torque path
- F16H2061/6603—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with at least two dynamo-electric machines for creating an electric power path inside the transmission device, e.g. using generator and motor for a variable power torque path characterised by changing ratio in the mechanical gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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- F16H2200/0039—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising three forward speeds
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- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0043—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising four forward speeds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0047—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising five forward speeds
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- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0056—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising seven forward speeds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/006—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising eight forward speeds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
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- F16H2200/0082—Transmissions for multiple ratios characterised by the number of reverse speeds
- F16H2200/0086—Transmissions for multiple ratios characterised by the number of reverse speeds the gear ratios comprising two reverse speeds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
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- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2005—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with one sets of orbital gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
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- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/201—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with three sets of orbital gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/62—Gearings having three or more central gears
- F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
- F16H3/666—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another with compound planetary gear units, e.g. two intermeshing orbital gears
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10S903/00—Hybrid electric vehicles, HEVS
- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
- Y10S903/904—Component specially adapted for hev
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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- Y10S903/00—Hybrid electric vehicles, HEVS
- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
- Y10S903/904—Component specially adapted for hev
- Y10S903/906—Motor or generator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S903/00—Hybrid electric vehicles, HEVS
- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
- Y10S903/904—Component specially adapted for hev
- Y10S903/909—Gearing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
- Y10S903/904—Component specially adapted for hev
- Y10S903/909—Gearing
- Y10S903/91—Orbital, e.g. planetary gears
Definitions
- Vehicle drive device control method and control device thereof, technical field.
- the present invention relates to a vehicle drive device for transmitting the output of an engine to drive wheels, and a control device therefor.
- the present invention relates to a technology for reducing the size of an electric motor and the like, and a method for controlling the drive device in an electric stepless variable speed state and a stepped state.
- the present invention relates to a shift control technique for appropriately controlling a gear ratio of a continuously variable transmission portion and a gear ratio of a stepped transmission portion in a case where the configuration is such that the gearshift state is controlled to be switched. . Background art
- a power distribution mechanism that distributes the output of the engine to the first electric motor and the output shaft is provided between the output shaft of the power distribution mechanism and the drive wheels.
- a vehicle equipped with a second electric motor is known.
- the driving apparatus for a hybrid vehicle described in Patent Documents 1, 6, and 8 is such a driving apparatus.
- the power distribution mechanism is constituted by, for example, a planetary gear device so as to function as a differential mechanism, and the main part of the power from the engine is mechanically transmitted to the drive wheels by the differential action.
- the rest of the power from the engine is transmitted electrically using an electric path from the first motor to the first motor, so that the vehicle travels while maintaining the engine in an optimal operating state. It is possible to improve fuel economy. Further, when a stepped transmission is provided between the transmission member and the output shaft, the torque transmitted to the transmission member is amplified, so that the power source including the electric motor can be reduced in size. It becomes possible.
- Patent Document 1 Japanese Patent Application Publication No.
- Patent Document 2 Japanese Patent Application Laid-Open No. H11-1989
- Patent Document 3 Japanese Patent Laid-Open Publication No.
- Patent Literature 4 Japanese Patent Application Laid-Open No. H11-2710
- Patent Document 5 WO 03/01 6 7 4 9 A 1
- Patent Document 6 Japanese Patent Application Laid-open No. 2003-130302
- Patent Document 7 Japanese Patent Application Laid-Open No. 2003-203130
- Patent Document 8 Japanese Patent Application Laid-Open No. 2000-237
- a continuously variable transmission is known as a device for improving the fuel efficiency of a vehicle
- a gear transmission such as a stepped transmission
- a device having good transmission efficiency there is no power transmission mechanism that combines these advantages.
- an electric path of electric energy from the first electric motor to the second electric motor that is, the vehicle Including a transmission line that transmits a part of the driving force of the electric motor through the electric engine
- the first motor must be increased in size as the engine power increases, and the electric engine output from the first motor
- the second motor driven by the motor must also be increased in size, causing a problem that the driving device becomes large.
- part of the output of the engine is temporarily converted to electric energy and transmitted to the drive wheels, and depending on the driving conditions of the vehicle, such as high-speed driving, fuel efficiency may deteriorate.
- Similar problems have been encountered when the power distribution mechanism is used as a transmission in which the gear ratio is electrically changed, for example, as a continuously variable transmission called an electric CVT.
- the above-described vehicle drive device includes a transmission path for transmitting a part of the electric power of the electric energy from the first electric motor to the second electric motor, that is, a part of the driving force of the vehicle, through the electric energy. Because part of the output of the motor is once converted to electric energy and transmitted to the drive wheels, the transmission efficiency is lower than that of a gear transmission such as a stepped automatic transmission.
- the gear type transmission is known as a device with high transmission efficiency without the above-mentioned electric path. Not controlled as such. And there is no power transmission mechanism that has these advantages with respect to fuel efficiency.
- a continuously variable transmission in which the above-described conventional vehicle drive device can be operated as an electric continuously variable transmission.
- a state-of-the-art transmission in which the conversion loss between motive power and electricity is suppressed due to the absence of the state and electric path that is, a step-variable gear that transmits the engine output to the drive wheels exclusively through a mechanical power transmission path
- the vehicle can be switched to an operable step-variable shift state, and fuel efficiency can be improved by switching control of the vehicle drive device between the stepless shift state and the step-variable shift state.
- it is not easy to select a shift state for controlling the switching between the continuously variable shift state and the stepped shift state and depending on the selection, the vehicle does not always travel with good fuel efficiency. In other words, if the choice was made incorrectly, the fuel economy could deteriorate.
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a drive device for a vehicle, which can reduce the size of a drive device or improve fuel efficiency, and a control device therefor. To provide. Another object is to provide a drive device that can be switched between a continuously variable transmission state that functions as an electric continuously variable transmission and a continuously variable transmission state that functions as a continuously variable transmission. It is an object of the present invention to provide a control device for a vehicle drive device in which a state and a stepped shift state are appropriately switched to further improve fuel efficiency. Another object of the present invention is to provide a control device for a vehicle drive device that controls a speed ratio of a continuously variable transmission portion and a speed ratio of a stepped transmission portion so as to obtain suitable fuel efficiency. .
- the present inventors have conducted various studies to solve the above problems, and as a result, the first motor and the second motor do not need to be so large in a normal output range where the engine output is relatively small.
- the engine output is relatively high, such as during high-power running, for example, when the engine is in the maximum output range, a capacity or output corresponding to that is provided. Therefore, if the engine output is large and the engine power is in the range, if the engine output is transmitted to the drive wheels exclusively through a mechanical power transmission path, It has been found that the first motive and the first electric motor are / J, and that the control device for the vehicle is compact because of the type.
- the gist of the invention according to claim 1 for achieving the above object is that a power distribution mechanism that distributes the output of the engine to the first electric motor and the transmission member, and a power distribution mechanism between the transmission member and the drive wheels.
- the differential state switching device allows the power distribution mechanism in the vehicle control device to operate in a differential state in which it can operate as an electric continuously variable transmission.
- the gearbox has both the advantages of improved fuel efficiency of a transmission that can electrically change the gear ratio and the high transmission efficiency of a gear transmission that mechanically transmits power.
- the resulting drive is obtained.
- the power distribution mechanism is set to the differential state to ensure the fuel efficiency of the vehicle. Power generated when the power distribution mechanism is in the locked state and the engine output is transmitted to the drive wheels exclusively through the mechanical power transmission path to operate as a transmission that changes the gear ratio electrically.
- the vehicle Since the conversion loss between the electric power and the electric energy is suppressed, fuel efficiency is improved.
- the power distribution mechanism is locked during high-power running, the vehicle is operated as a transmission in which the transmission ratio can be electrically changed to low-medium-speed running and low-medium-power running. Electric energy to be generated by the motor In other words, the maximum value of the electric energy transmitted by the motor can be reduced, and the motor or a control device for a vehicle including the motor can be further downsized.
- the gist of the invention according to claim 2 for achieving the object is that the power distribution mechanism includes a first element connected to the engine and a second element connected to the first electric motor. And a third element connected to the transmission member, wherein the differential state switching device mutually connects the first element, the second element, and the third element to achieve the differential state. At least 2 'of the first element, the second element, and the third element are interconnected or the second element is brought into a non-rotation state so as to be relatively rotatable and to be in the locked state. To do. With this configuration, a power distribution mechanism that can be selectively switched between the differential state and the locked state by the differential state switching device is simply configured.
- the gist of the invention according to claim 3 for achieving the above object is that a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a power distribution mechanism between the transmission member and the drive wheels.
- a vehicle control device provided with a first electric motor provided in the vehicle comprising: a differential state in which the power distribution mechanism can be operated as an electric continuously variable transmission; A differential state switching device for selectively switching to a constant speed change state operable as a machine.
- the differential state switching device allows the power distribution mechanism in the vehicle control device to operate in a differential state in which the power distribution mechanism can operate as an electric continuously variable transmission.
- Gear transmission that selectively switches to a constant speed state in which it can operate as a transmission having a gear ratio, thereby improving the fuel efficiency of a transmission in which the transmission ratio is electrically changed and mechanically transmitting power.
- Drive that combines the advantages of high transmission efficiency with can get. For example, in the normal output range of an engine in which the vehicle travels at low to medium speeds and low to medium output, the power distribution mechanism is in a differential state ⁇ : the fuel efficiency of vehicle rain is ensured.
- the power distribution mechanism is in a constant speed change state, so that the regions to be operated as a transmission whose gear ratio can be electrically changed are low-medium-speed running and low-medium-power running of the vehicle. Electric Energy to be Generated by the Motor In other words, the maximum value of the electric energy transmitted by the motor can be reduced, and the motor or a vehicle control device including the motor can be further downsized.
- the gist of the invention according to claim 4 is that the power distribution mechanism is connected to a first element connected to the engine, a second element connected to the first electric motor, and the transmission member.
- the differential state switching device makes the first element, the second element, and the third element relatively rotatable relative to each other to make the differential state. At least two of the first element, the second element, and the third element are interconnected or the second element is set in the non-rotation state to achieve the constant speed change state.
- the gist of the invention according to claim 5 is that the power distribution mechanism is a planetary gear device, the first element is a carrier of the planetary gear device, and the first element is a planetary gear device.
- a sun gear; the third element is a ring gear of the planetary gear set; and the differential state switching device is a clutch and / or a clutch that interconnects any two of the carrier, the sun gear, and the ring gear.
- a brake is provided to connect the sun gear to a non-rotating member.
- the gist of the invention according to claim 6 is that the planetary gear device is a thin gear device. It is a glupinion type planetary gear device. By doing so, the axial size of the power distribution mechanism can be reduced, and the power distribution mechanism can be easily constituted by one single pinion type planetary gear device.
- the gist of the invention according to claim 7 is that, in order to make the single pinion type planetary gear device a transmission having a gear ratio of 1, the differential state switching device is configured to mutually connect the carrier and the sun gear. The sun gear is brought into a non-rotating state in order to make the coupling force or the single-pinion type planetary gear device a speed-up transmission with a gear ratio smaller than 1.
- the power distribution mechanism can be easily configured as a transmission having a single-stage or multiple-stage constant speed ratio by one single-pinion type planetary gear device.
- the gist of the invention according to claim 8 is that the planetary gear device is a double-binion type planetary gear device. By doing so, the axial size of the power distribution mechanism is reduced, and the power distribution mechanism is easily constituted by one double pinion type planetary gear device.
- the gist of the invention according to claim 9 is that, in order to make the double pinion type planetary gear device a transmission having a speed ratio of 1, the differential state switching device is configured to mutually change the carrier and the sun gear. Or the sun gear is in a non-rotating state in order to make the double pinion type planetary gear device a reduction gear transmission having a gear ratio larger than 1.
- the power distribution mechanism can be easily configured as a transmission having a single-stage or multiple-stage constant gear ratio by one double-pinion type planetary gear device.
- the gist of the invention according to claim 10 is that the automatic transmission further includes an automatic transmission provided between the transmission member and the driving wheel, and a transmission ratio based on a transmission ratio of the automatic transmission. Is formed. In this way, a wide range of driving force can be obtained by utilizing the speed ratio of the automatic transmission.
- the gist of the invention according to claim 11 further includes an automatic transmission provided between the transmission member and the driving wheel, wherein a speed ratio of the power distribution mechanism and an automatic transmission The overall speed ratio is formed based on the speed ratio.
- the gist of the invention according to claim 12 is that the automatic transmission is a stepped automatic transmission.
- a transmission for example, a continuously variable transmission, in which the electric gear ratio is changed by the power distribution mechanism in the differential state and the stepped automatic transmission is constituted, and the locked state or the constant state is set.
- the stepped automatic transmission is constituted by the power distribution mechanism in the gearshift state and the stepped automatic transmission.
- a second electric motor is connected to the transmission member.
- the automatic transmission is a reduction transmission having a settable gear ratio larger than 1.
- the output of the automatic transmission can be reduced to a low torque, so that the second electric motor can be further downsized.
- the gist of the invention according to claim 13 is that a power distribution mechanism for distributing the output of the engine to the first motor and the transmission member, and a stepped mechanism provided between the transmission member and the drive wheels.
- a vehicle control device comprising: an automatic transmission of the type; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (a) the power distribution mechanism includes a sun gear, a carrier, And the ring gear form three elements.On a collinear diagram that can express the rotational speeds of the three elements in a straight line, the three elements are sequentially moved from one end to the other, from the one end to the other end.
- the planetary gear set and its second element And / or a switching brake for connecting a second element thereof to a non-rotating member.
- the switching clutch is switched to a differential state by releasing the switching clutch and / or the switching brake. Alternatively, it can be switched to a constant gear state with a fixed gear ratio by the engagement of the switching brake, and (b)
- the automatic transmission includes a second planetary gear device, a third planetary gear device, and a fourth planetary gear device, and the sun gear of the second planetary gear device, the third planetary gear device, and the fourth planetary gear device.
- Carrier, and a part of the ring gear are connected to each other to form five rotating elements, and the rotational speeds of the five rotating elements can be expressed on a straight line.
- the rotating elements are sequentially referred to as a fourth element, a fifth element, a sixth element, a seventh element, and an eighth element from one end to the other end
- the fourth element is connected to the transmission member via a second clutch.
- the fifth element is selectively connected to the non-rotating member via the second brake
- the sixth element is selectively connected to the non-rotating member via the second brake.
- a seventh element is selectively connected to the output rotation member of the automatic transmission
- an eighth element is selectively connected to the transmission member via a first clutch
- the transmission is shifted in multiple stages according to the combination of the engagement operations of the one clutch, the second clutch, the first brake, the second brake, and the third brake.
- the gist of the invention according to claim 14 is that a power distribution mechanism for distributing the output of the engine to the first motor and the transmission member, and a stepped mechanism provided between the transmission member and the drive wheels.
- a vehicle control device comprising: an automatic transmission of the type; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (a) the power distribution mechanism includes a first sun gear, a first sun gear, A first pinion gear connected to the engine; a first sun gear connected to the first electric motor; and a first ring gear connected to the transmission member.
- the speed change device includes a single pinion type second planetary gear train including a second sun gear, a second carrier, and a second ring gear, and a single pinion type second planetary gear including a third sun gear, a third carrier, and a third ring gear.
- a third pinion-type fourth planetary gear device including a third planetary gear device, a fourth sun gear, a fourth carrier, and a fourth ring gear, wherein the second sun gear and the third sun gear are It is selectively connected to the transmission member via a second clutch and is selectively connected to a non-rotating member via a first brake, and the first carrier is selectively connected to a non-rotating member via a second brake.
- the fourth ring gear is selectively connected to a non-rotating member via a third brake, and the second ring gear, the third carrier, and the fourth carrier are output rotation members of the automatic transmission.
- the third ring gear and the fourth sun gear are selectively connected to the transmission member via a first clutch.
- the gist of the invention according to claim 15 is that a power distribution mechanism for distributing the output of the engine to the first motor and the transmission member, and a stepped mechanism provided between the transmission member and the drive wheels.
- a vehicle control device comprising: an automatic transmission of the type; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (a) the power distribution mechanism includes a sun gear, a carrier, And the ring gear form three elements.On a collinear diagram that can express the rotational speeds of the three elements in a straight line, the three elements are sequentially moved from one end to the other, from the one end to the other end.
- first element When a first element and a third element are provided, the first element is connected to the engine, the second element is connected to the first electric motor, and the third element is connected to the transmission member.
- Planetary gearing and its' second element first And / or a switching brake for connecting a second element thereof to a non-rotating member.
- the switching clutch is switched to a differential state by releasing the switching clutch and / or the switching brake.
- the automatic transmission is switched to a constant gear state with a fixed gear ratio by engagement of a switching brake.
- the automatic transmission includes a second planetary gear device and a third planetary gear device, and the second planetary gear device
- the sun gear, carrier, and part of the ring gear of the device and the third planetary gear set are connected to each other to form four elements, and the rotational speeds of the four elements can be represented on a straight line.
- the four elements are referred to as the fourth, fifth, sixth, and seventh elements in order from one end to the other end on the alignment chart
- the fourth element Is selectively connected to the transmission member via a second clutch and selectively connected to a non-rotating member via a first brake
- the fifth element is selected to a non-rotating member via a second brake.
- the element Connected to the sixth The element is connected to the output rotary member of the automatic transmission, the seventh element is selectively connected to the transmission member via a first clutch, and the seventh element is connected to the first clutch, the second clutch, the first brake, the second The gears are shifted in multiple stages according to the combination of the braking operations. .
- the gist of the invention according to claim 16 is that a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped mechanism provided between the transmission member and the drive wheels.
- a vehicle control device comprising: an automatic transmission of the type; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (a) the power distribution mechanism includes a first sun gear, A first pinion gear connected to the engine; a first sun gear connected to the first electric motor; and a first ring gear connected to the transmission member.
- Automatic The transmission is a single pinion type second planetary gear train having a second sun gear, a second carrier, and a second ring gear, and a single pinion type planetary gear having a third sun gear, a third carrier, and a third ring gear.
- a third planetary gear device, wherein the second sun gear and the third sun gear are selectively connected to the transmission member via a second clutch, and are selectively connected to a non-rotating member via a first brake.
- the third carrier is selectively connected to a non-rotating member via a second brake
- the second carrier and the third ring gear are connected to an output rotating member of the automatic transmission
- the second ring gear Is selectively connected to the transmission member via a first clutch.
- the gist of the invention according to claim 17 is that a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped mechanism provided between the transmission member and the drive wheels.
- a vehicle control device comprising: an automatic transmission of the type; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (a) the power distribution mechanism includes a sun gear, a carrier, And the ring gear form three elements, and the three elements on a collinear chart that can express the rotational speed of the three elements on a straight line From the one end to the other end, the first element is connected to the engine, and the second element is connected to the first motor.
- the third element is a first planetary gear unit connected to the transmission member, and a switching clutch for connecting the second element to the first element and / or the second element is connected to a non-rotating member. And a switching state is switched to a differential state by releasing the switching clutch and / or the switching brake, and is switched to a constant transmission state with a fixed gear ratio by engaging the switching clutch or the switching brake.
- the automatic transmission includes a second planetary gear unit and a third planetary gear unit, and a part of the sun gear, the carrier and the ring gear of the second planetary gear unit and the third planetary gear unit are connected to each other.
- Four elements are formed in order from the one end to the other end on the alignment chart where the rotational speeds of the four elements can be represented on a straight line.
- the fifth element, the sixth element, and the seventh element, the fourth element is selectively connected to the transmission member via a second clutch, and is selectively connected to the engine via a fourth clutch.
- the fifth element is selectively connected to the engine via a third clutch, and is selectively connected to a non-rotating member via a first brake, and the sixth element is connected to the engine.
- the seventh element is selectively connected to the transmission member via a first clutch, and is selectively connected to a non-rotation member via a first brake.
- the transmission is shifted in multiple stages according to a combination of the engagement operations of the first clutch, the second clutch, the third clutch, the fourth clutch, the first brake, and the second brake.
- the gist of the invention according to claim 18 is that a power distribution mechanism for distributing the output of the engine to the first motor and the transmission member, and a stepped mechanism provided between the transmission member and the drive wheels.
- a vehicle control device comprising: an automatic transmission of the type; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (a) the power distribution mechanism includes a first sun gear, a first sun gear, A first carrier and a first ring gear, the first carrier is connected to the engine, the first sun gear is connected to the first electric motor, and the first ring gear is a single pinion type second gear connected to the transmission member.
- the second planetary gear train includes a second sun gear, a second carrier, and a second ring gear.
- a third gear is selectively connected to the transmission member via a second clutch, and is selectively connected to the engine via a fourth clutch.
- the third carrier is selectively connected to the engine via a third clutch, and is selectively connected to a non-rotating member via a second brake.
- the third ring gear is connected to an output rotating member of the automatic transmission, and the second sun gear is selectively connected to the transmitting member via a first clutch and to a non-rotating member via a first brake. It is selectively linked. '
- the gist of the invention according to claim 19 is that a power distribution mechanism for distributing the output of the engine to the first motor and the transmission member, and a stepped mechanism provided between the transmission member and the drive wheels.
- a vehicle control device comprising: an automatic transmission of the type; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (a) the power distribution mechanism includes a sun gear, a carrier, And the ring gear form three elements.On a collinear diagram that can express the rotational speeds of the three elements in a straight line, the three elements are sequentially moved from one end to the other, from the one end to the other end.
- the first element is connected to the engine
- the second element is connected to the first electric motor
- the third element is connected to the transmission member.
- the planetary gear set and its second element And / or a switching brake for connecting the second element thereof to the non-rotating member.
- the clutch is switched to a differential state by releasing the switching clutch and / or the switching brake.
- the automatic transmission includes a second planetary gear device and a third planetary gear device, and the second planetary gear device; And third planetary gearset sun gear, carrier and ring gear
- the four elements are formed by connecting parts of the key to each other, and the four elements are connected from one end to the other on a collinear diagram that can express the rotational speed of the four elements in a straight line.
- the fourth element is selectively connected to the transmission member via a third clutch
- the fifth element is selectively connected to the engine via a second clutch, and is selectively connected to the non-rotary member via a second brake.
- the sixth element is connected to an output rotation member of the automatic transmission
- the seventh element is selectively connected to the transmission member via a first clutch, and the first clutch and the second clutch , 3rd clutch, 1st brake, 1st
- the gears are shifted in multiple steps according to the combination of the two brakes.
- the gist of the invention according to claim 20 is that a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member is provided between the transmission member and the drive wheels.
- a vehicle control device comprising: a stepped automatic transmission; and a second electric motor provided between the transmission member and a driving wheel thereof, wherein (a) the power distribution mechanism includes a first sun gear. , A first carrier, and a first ring gear, wherein the first carrier is connected to the engine, the first sun gear is connected to the first electric motor, and the first ring gear is a double pinion type connected to the transmission member.
- the automatic transmission The machine comprises a single pinion type second planetary gear set having a second sun gear, a second carrier and a second ring gear, and a double pinion type third planetary gear having a third sun gear, a third carrier and a third ring gear.
- a second sun gear is selectively connected to the transmission member via a third clutch, and is selectively connected to a non-rotating member via a first brake; and a second gear is provided.
- the third carrier are selectively connected to the engine via a second clutch and selectively connected to a non-rotating member via a second brake, and the second ring gear and the third ring gear are Connected to the output rotating member of the automatic transmission
- the third sun gear is selectively connected to the transmission member via a first clutch.
- the gist of the invention according to claim 21 is that a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped mechanism provided between the transmission member and the drive wheels.
- a vehicle control device comprising: an automatic transmission of the type; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (a) the power distribution mechanism includes a sun gear, a carrier, And the ring gear form three elements.On a collinear diagram that can express the rotational speeds of the three elements in a straight line, the three elements are sequentially moved from one end to the other, from the one end to the other end.
- the first element When a first element and a third element are provided, the first element is connected to the engine, the second element is connected to the first electric motor, and the third element is connected to the transmission member.
- the planetary gear set and its second element And / or a switching brake for connecting the second element thereof to the non-rotating member.
- the clutch is switched to a differential state by releasing the switching clutch and / or the switching brake, and the switching clutch or (B ')
- the automatic transmission is a second planetary gear device, a third planetary gear device, and a fourth planetary gear device.
- the sun gear, the carrier and the ring gear of the second planetary gear set, the third planetary gear set, and the fourth planetary gear set are connected to each other to form five rotating elements, On a collinear chart that can express the rotation speeds of the five rotating elements on a straight line, the five rotating elements are sequentially shifted from one end to the other end by the fourth element and the fifth element.
- the sixth element, the seventh element, and the eighth element, the fourth element is selectively connected to the transmission member via a second clutch, and to the non-rotating member via a first brake.
- the seventh element is connected to the output rotation member of the automatic transmission, the eighth element is connected to the transmission member, and a combination of the engagement operation of the second clutch, the first brake, the second brake, and the third brake.
- the speed is changed in multiple stages according to the speed.
- the gist of the invention according to claim 22 is that a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member is provided between the transmission member and the drive wheels.
- a vehicle control device comprising: a stepped automatic transmission; and a second electric motor provided between the transmission member and the drive wheel, (a) the power distribution mechanism includes a first sun gear , A first carrier, and a first ring gear, wherein the first carrier is connected to the engine, the first sun gear is connected to the first electric motor, and the first ring gear is connected to the transmission member.
- the automatic The speed change device includes a single pinion type second planetary gear device including a second sun gear, a second carrier, and a third ring gear, and a single pinion type third gear device including a third sun gear, a third carrier, and a third ring gear.
- the second carrier is selectively connected to the non-rotating member via the first brake and selectively connected to the non-rotating member via the first brake, and the second carrier is selectively connected to the non-rotating member via the first brake.
- the fourth ring gear is selectively connected to a non-rotating member via a third brake, and the second ring gear, the third carrier, and the fourth carrier are connected to the automatic transmission. Is connected to an output rotary member of the third re ring gear and the fourth sun gear are those connected to the transmission member.
- the gist of the invention according to claim 23 is that a power distribution mechanism for distributing the output of the engine to the first motor and the transmission member, and a stepped mechanism provided between the transmission member and the drive wheels.
- a vehicle control device comprising: an automatic transmission of the type; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (a) the power distribution mechanism includes a sun gear, a carrier, And the ring gear constitute three elements.On a collinear diagram that can express the rotational speeds of the three elements in a straight line, the three elements are arranged in order from one end to the other, and When the first element and the third element are provided, the first element is connected to the engine, and the second element is connected to the first electric motor.
- a third planetary gear set connected to the transmission member; a switching clutch for connecting the second element to the first element; and / or a second clutch connected to the non-rotating member.
- the automatic transmission includes a second planetary gear unit and a third planetary gear unit, and a part of the sun gear, the carrier, and the ring gear of the second planetary gear unit and the third planetary gear unit is connected to each other.
- the four elements are formed by this, and the four elements can be expressed from one end to the other on a collinear chart that can express the rotational speed of the four elements on a straight line.
- the fourth element is selectively connected to the transmission member via a second clutch
- the fifth element is selectively connected to the non-rotating member via a second brake
- the sixth element is connected to the output rotating member of the automatic transmission.
- the seventh element is connected to the transmission member, and is shifted in multiple stages according to a combination of the engagement operations of the second clutch, the first brake, and the second brake.
- the gist of the invention according to claim 24 is that a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped mechanism provided between the transmission member and the drive wheels.
- a vehicle control device comprising: an automatic transmission of the type; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (a) the power distribution mechanism includes a first sun gear, A first carrier and a first ring gear, the first carrier is connected to the engine, the first sun gear is connected to the first electric motor, and the first ring gear is a single pinion type second gear connected to the transmission member.
- the automatic The speed change device includes a single pinion type second planetary gear train including a second sun gear, a second carrier, and a second ring gear, and a single pinion type second planetary gear including a third sun gear, a third carrier, and a third ring gear.
- the second sun gear and the third sun gear are selectively connected to the transmission member via a second clutch, and selectively connected to a non-rotating member via a first brake.
- the carrier is selectively connected to a non-rotating member via a second brake, the second carrier and the third ring gear are connected to an output rotating member of the automatic transmission, and the second ring gear is connected to the transmission member. It has been consolidated.
- the gist of the invention according to claim 25 is that the power distribution mechanism is disposed on a first axis, and the automatic transmission is disposed on an I axis parallel to the first axis.
- the power distribution mechanism and the automatic transmission are provided with power via the transmission member constituted by a pair of members disposed on the first axis and the second axis. They are communicatively linked. By doing so, the axial dimension of the drive unit is reduced as compared with the case where the power distribution mechanism and the automatic transmission are arranged on the same axis.
- the drive unit can be placed horizontally for FF vehicles and RR vehicles, where the size of the drive unit in the axial direction is generally limited by the vehicle width, that is, the first axis and the second axis are parallel to the vehicle width direction. It can be suitably used as a drive device that can be mounted.
- the gist of the invention according to claim 26 is that the second electric motor is disposed on the first axis. By doing so, the axial dimension of the second axis in the drive device is reduced.
- the gist of the invention according to claim 27 is that the second electric motor is disposed on the second axis. With this configuration, the dimension of the first shaft center in the driving device in the axial direction is reduced.
- the gist of the invention according to claim 28 is that the transmission member is disposed on the opposite side of the engine with respect to the power distribution mechanism.
- the power distribution mechanism is provided between the engine and the transmission member.
- the gist of the invention according to claim 29 is that an output rotary member of the automatic transmission includes a differential drive gear, and the differential drive gear is provided in the automatic transmission. It is arranged on the opposite side of the transmission member. In other words, the automatic transmission is disposed between the transmission member and the differential drive gear. By doing so, the dimension of the first axis in the axial direction is reduced.
- the gist of the invention according to claim 30 resides in that the power distribution mechanism reverses the input rotation and outputs the inverted rotation to the automatic transmission, and the third brake is engaged for reverse traveling.
- a gear ratio is achieved.
- a negative rotation is input to the automatic transmission, that is, a rotation that is opposite to the rotation direction of the transmission member during forward traveling.
- the output rotation member of the automatic transmission can be used for reverse traveling when traveling forward.
- a reversed rotation can be output.
- a reverse gear can be achieved even if the automatic transmission is not provided with the first clutch for the purpose of downsizing the drive device.
- the gear ratio for reverse running is reduced.
- the gist of the invention according to claim 31 is that the power distribution mechanism reverses the input rotation and outputs the inverted rotation to the automatic transmission, and engages the second brake for reverse traveling.
- a gear ratio is achieved.
- a negative rotation is input to the automatic transmission, that is, a rotation in a direction opposite to the rotation direction of the transmission member during forward traveling.
- the output rotation member of the automatic transmission can be used for reverse travel when traveling forward.
- a reversed rotation can be output.
- a reverse gear can be achieved even if the automatic transmission is not provided with the first clutch for the purpose of reducing the size of the drive device.
- the gear ratio for reverse running is reduced.
- the gist of the invention according to claim 32 is that the power distribution mechanism inverts the input rotation and outputs the inverted rotation to the automatic transmission, and engages the second clutch for reverse traveling.
- a gear ratio is achieved.
- a negative rotation is input to the automatic transmission, that is, a rotation that is opposite to the rotation direction of the transmission member during forward traveling.
- the output rotation member of the automatic transmission can be used for reverse traveling when traveling forward.
- a reversed rotation can be output.
- a reverse gear can be achieved even if the first transmission is not provided in the self-transmission.
- the gear ratio for reverse travel is reduced. It can be set arbitrarily. For example, a reverse gear ratio larger than the first speed gear ratio is obtained.
- the gist of the invention according to claim 33 is that a power distribution mechanism for distributing the output of the engine to the first motor and the transmission member, and a second motor provided between the transmission member and the drive wheels.
- the power distribution mechanism in the vehicle control device can be configured to operate in a differential state in which the power distribution mechanism can be operated as an electric continuously variable transmission based on the vehicle state, and in a buckle state in which the power transmission mechanism is deactivated.
- a drive device that combines the advantages of both the fuel efficiency improvement effect of a transmission in which the gear ratio is electrically changed and the high transmission efficiency of a gear-type transmission device that mechanically transmits power is achieved. can get. For example, in a normal engine output range where the vehicle state represented by the vehicle speed and engine torque is low-medium vehicle speed and low-medium engine output, the power distribution mechanism is in a differential state to ensure fuel efficiency of the vehicle.
- the power distribution mechanism is locked, and the transmission of the engine is transmitted to the drive wheels exclusively through a mechanical power transmission path to change the gear ratio electrically.
- the conversion loss between the motive power and the electric energy generated when the operation is performed in a controlled manner is suppressed, so that the fuel efficiency is improved.
- the power distribution mechanism is locked at high engine output, the region in which the transmission is electrically operated to change the gear ratio is a low-medium vehicle speed and low-medium engine output, and an electric motor is generated. In other words, the maximum value of the electric energy transmitted by the motor can be reduced, and the motor or the control device for a vehicle including the motor can be further downsized.
- the gist of the invention according to claim 34 is that a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a second electric motor provided between the transmission member and the drive wheels.
- a control method for a vehicle drive device comprising: (a) a differential state in which the power distribution mechanism can be operated as an electric continuously variable transmission based on a vehicle state; It is to selectively switch to a constant speed state in which the transmission can operate as a multi-speed or multi-speed transmission.
- the power distribution mechanism in the vehicle control device is configured to control the power transmission mechanism to operate as an electric continuously variable transmission based on the vehicle state, and to provide a single-stage or multiple-stage constant speed ratio.
- the transmission can be selectively switched to a constant speed state in which it can operate as a transmission, so the transmission ratio can be changed electrically and the fuel efficiency can be improved.
- a drive device having both of the above advantages can be obtained. For example, in a normal engine output range where the vehicle state represented by the vehicle speed and the engine torque is a low-medium vehicle speed and a low-medium engine output, the power distribution mechanism is set to the differential state to ensure the fuel efficiency of the vehicle.
- the invention according to claim 35 further comprising an automatic transmission provided between the transmission member and the drive wheel, wherein a speed ratio of the power distribution mechanism and a speed ratio of the automatic transmission are provided.
- An overall speed ratio is formed based on the vehicle speed, and the overall speed ratio is set by controlling the speed ratio of the power distribution mechanism and the speed ratio of the automatic transmission based on the vehicle state.
- an appropriate vehicle driving force according to the vehicle condition can be obtained.
- the gist of the invention according to claim 36 is that the vehicle state is represented by a driving force-related value of the vehicle. In this way, the overall gear ratio of the driving device is set in consideration of fuel efficiency, and an appropriate vehicle driving force can be obtained.
- the gist of the invention according to claim 37 is that the vehicle state is represented by a vehicle speed. In this way, the overall gear ratio of the drive unit is set in consideration of fuel efficiency, and an appropriate vehicle driving force can be obtained. ⁇
- the gist of the invention according to claim 38 is that a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels. And a second electric motor provided between the transmission member and the drive wheel thereof.
- the power distribution mechanism includes a sun gear, a carrier, and The ring gear forms three elements, and the rotational speeds of the three elements can be represented on a straight line. Element and the third element, or when the three elements are the second element, the third element, and the first element in order from one end to the other, the first element is transmitted to the engine.
- the second element of which is 1) a third planetary gear unit connected to the transmission member, a switching clutch for connecting the second element to the first element, and / or a non-rotating of the second element
- a switching brake coupled to a member, wherein the switching is switched to a differential state by releasing the switching clutch and / or the switching brake, and is switched to a constant transmission state with a fixed gear ratio by engagement of the switching clutch or the switching brake.
- the output rotating member of the automatic transmission can output a reverse rotation for the reverse running as compared with the forward running.
- the gist of the invention according to claim 39 is that the automatic transmission according to the invention according to claim 38 includes a planetary gear device having a sun gear, a carrier, and a ring gear that mesh with each other.
- the sun gear, the carrier, and the ring gear of the planetary gear device form at least three rotating elements, and at least three of the rotating speeds of the at least three rotating elements are represented on a collinear diagram that can be represented by a straight line.
- the fourth element is connected to the transmission member so as to be able to transmit power
- the fifth element is A sixth element is selectively connected to a non-rotating member via a brake via a brake, and is connected to an output rotating member of the automatic transmission through a brake.
- the gear ratio for forward running is achieved.
- the fourth element among the fourth element, the fifth element, and the sixth element that interlock with each other is set as the input rotation to the automatic transmission, which is the output of the power distribution mechanism that is continuously variable.
- the rotation of the sixth element is stopped, and the fifth element is set to the rotation speed at which the rotation of the fourth element, that is, the input rotation to the automatic transmission, is reduced. Therefore, the input rotation to the automatic transmission is reduced to the output rotation from the automatic transmission, so that the gear ratio for reverse traveling can be set arbitrarily. For example, a reverse gear ratio larger than the first speed gear ratio is obtained.
- the gist of the invention according to claim 40 is that the automatic transmission according to claim 38 includes a planetary gear device having a sun gear, a carrier, and a ring gear that mesh with each other.
- the sun gear, the carrier and the ring gear of the planetary gear set constitute at least three rotating elements, the fourth element of which is connected to the transmission member so as to be able to transmit power, and the fifth element of which is the output of the automatic transmission.
- the automatic transmission is further provided with a clutch for integrally rotating a rotating element of the planetary gear unit, and a gear ratio for reverse running is achieved by engagement of the clutch. Things.
- the gist of the invention according to claim 41 for achieving the above object is a control device for a vehicle drive device for transmitting the output of an engine to drive wheels, comprising: A transmission state switching type transmission mechanism capable of switching between a continuously variable transmission state operable as a transmission and a stepped transmission state operable as a stepped transmission; and Switching control means for selectively switching the transmission state switching type transmission mechanism between the continuously variable transmission state and the stepped transmission state.
- a shift state switching type shift mechanism capable of switching between a continuously variable shift state operable as an electric continuously variable transmission and a stepped shift state operable as a stepped transmission is provided by the switching control. Means to selectively switch between the continuously variable transmission state and the stepped transmission state based on the predetermined conditions of the vehicle.
- a drive device having both advantages of high transmission efficiency of the stepped transmission for transmission is obtained.
- the above-mentioned transmission state switching type transmission mechanism is set to a continuously variable transmission state to ensure the fuel efficiency of the vehicle.
- a stepped transmission that can operate as a stepped transmission, and the power generated when the output of the engine is transmitted to the drive wheels exclusively through a mechanical power transmission path to operate as an electric stepless transmission. Since the conversion loss to and from electric energy is suppressed, fuel efficiency is improved.
- the above-mentioned shift state switching type transmission mechanism is set to the stepped shifting state.
- the electric energy to be generated by the motor In other words, the maximum value of the electric energy transmitted by the motor can be reduced, and the motor or a control device for a vehicle including the motor can be further reduced. Typed.
- the gist of the invention according to claim 42 is that, in the invention according to claim 41, the transmission state switching type transmission mechanism includes: a first electric motor; and an output of the engine, the first electric motor. And a power distribution mechanism for distributing the power to the transmission member, and a second electric motor provided between the transmission member and the driving wheel.
- the power distribution mechanism has a first element connected to the engine, a second element connected to the first electric motor, and a third element connected to the first electric motor and the transmission member.
- the power distribution mechanism includes a differential state switching device for enabling the shift state switching type shift mechanism to be switched to one of the stepless shift state and the stepped shift state. The device selectively switches between the continuously variable transmission state and the stepped transmission state by controlling the differential state switching device.
- the differential state switching device is controlled by the switching control means, so that the transmission state switching type transmission mechanism in the vehicle control device is set to the continuously variable transmission state in which it can operate as a continuously variable transmission. It can be easily switched to a stepped transmission state that can operate as a stepped transmission.
- the gist of the invention according to claim 43 is that, in the invention according to claim 41, the differential state switching device is configured to control the shift state switching type transmission mechanism to be in the continuously variable shift state and the active state. Switching to any one of a plurality of gear stages, and switching to any of a plurality of gear stages in the stepped gear state, wherein the switching control means switches from the continuously variable gear state to the stepped gear state, By controlling the differential state switching device according to a predetermined condition of the vehicle, any one of a plurality of stages in the stepped shift state is changed.
- the differential state switching device is controlled by the switching control means, so that the transmission state switching type transmission mechanism in the vehicle control device can be shifted from the continuously variable transmission state where it can operate as a continuously variable transmission.
- the differential state switching device is controlled according to a predetermined condition of the vehicle, so that any one of the plurality of stages in the stepped speed change state is changed. For example, when the vehicle is traveling at low to medium speeds and at low to medium power, the transmission state switching type transmission mechanism is set to a continuously variable transmission state to ensure the fuel efficiency of the vehicle.
- the transmission is in a step-variable state according to high-speed traveling that can operate as a transmission of
- the conversion loss between motive power and electricity generated when the output of the engine is transmitted to the drive wheels and operated as an electric continuously variable transmission is suppressed, so that fuel efficiency is improved.
- the shift state switching type transmission mechanism is set to a stepped shifting state corresponding to high-power traveling and operates as an electric continuously variable transmission. Since the vehicle travels at a medium output, the maximum value of the electric energy transmitted by the motor can be reduced, and the motor or a vehicle control device including the motor can be further downsized. Therefore, the switching control means switches from the continuously variable transmission state to the stepped transmission state, and the differential state switching device is controlled in accordance with the predetermined condition of the vehicle rain. Since this is changed, it is possible to obtain a stepped shift state appropriate for a vehicle running condition such as high-speed running or high-power running.
- the gist of the invention according to claim 44 is that the predetermined condition of the vehicle is determined based on a preset high-speed traveling determination value, and the switching control means When the vehicle speed exceeds the high-speed traveling determination value, the shift state switching type transmission mechanism is set to the stepped shift state. In this way, for example, when the actual vehicle speed exceeds the high-speed traveling determination value set on the high vehicle speed side, the output of the engine is transmitted to the drive wheels exclusively through the mechanical power transmission path, and the electrical Since the conversion loss between power and electricity generated when operating as a step transmission is suppressed, fuel efficiency is improved. Further, the high-speed running determination value is a value preset to determine the high-speed running of the vehicle.
- the gist of the invention according to claim 45 is that the predetermined condition of the vehicle is as follows:
- the switching control means is provided based on a preset high-speed running determination value, and the switching control means is configured to control the continuously variable speed-change-type transmission mechanism when the actual vehicle speed exceeds the high-speed running determination value.
- the shift state is prohibited. In this way, for example, when the actual vehicle speed exceeds the high-speed traveling determination value set on the high vehicle speed side, the continuously variable transmission state of the transmission state switching type transmission mechanism is prohibited, and the electric continuously variable transmission is used. Since the conversion loss between power and electricity generated during operation is suppressed, the output of the engine is transmitted to the drive wheels exclusively through a mechanical power transmission path, and the fuel efficiency of the vehicle is improved.
- the gist of the invention according to claim 46 is that the predetermined condition of the vehicle is as follows.
- the switching control means is determined based on a preset high output traveling determination value, and the switching control means is configured to switch the variable speed state switching type when a driving force related value of the vehicle exceeds the high output traveling determination value.
- the speed change mechanism is set to the stepped speed change state. In this way, if the driving force-related value such as the required driving force or the actual driving force exceeds the high-power running determination value set on the relatively high-power side, the engine is driven exclusively by the mechanical power transmission path.
- the output is transmitted to the drive wheels and the motor is operated as an electric continuously variable transmission, the maximum value of the electric energy transmitted by the motor can be reduced, and the motor or a vehicle control device including the motor can be further reduced in size. .
- the above-mentioned driving force-related values are the transmission torque and torque in the power transmission path such as the output torque of the engine, the output torque of the transmission, the driving torque of the driving wheels, and the throttle opening required for the vehicle.
- This is a parameter that is directly or indirectly related to the driving force of the vehicle.
- the high output traveling determination value is a value set in advance to determine the high output traveling of the vehicle.
- the gist of the invention according to claim 47 is that the predetermined condition of the vehicle is determined based on a preset high output traveling determination value, and the switching control means includes: When the driving force-related value exceeds the high output traveling determination value, the continuously variable transmission state of the variable speed state switching type transmission mechanism is prohibited. In this way, if the driving force-related value such as the required driving force or the actual driving force exceeds the high-output traveling determination value set on the relatively high-output side, the continuously variable transmission of the transmission state switching type transmission mechanism can be used. The state is prohibited, and the maximum value of the electric energy transmitted by the motor when operating as an electric continuously variable transmission is reduced, so that the engine output is driven exclusively by the mechanical power transmission path.
- the motor or the vehicle control device including the motor is further downsized.
- the gist of the invention according to claim 48 is that the predetermined conditions of the vehicle include a high-speed running determination line and a high-power running determination line, and are stored in advance with vehicle speed and vehicle driving force as parameters. It is determined based on the actual vehicle speed and the driving force-related value of the vehicle from the switched switching diagram. In this way, a high vehicle speed determination or a high torque determination can be easily determined.
- the gist of the invention according to claim 49 is that the predetermined condition of the vehicle is as follows. This is a failure determination condition for determining a reduction in the function of a control device for setting the shift state switching type transmission mechanism to the electrical continuously variable transmission state, and the self-switching control means has satisfied the failure determination condition.
- the transmission state switching type transmission mechanism is set to the stepped transmission state. With this configuration, even if the transmission state switching type transmission mechanism is normally in the continuously variable transmission state, the transmission is preferentially set to the stepped transmission state. It is possible to ensure substantially the same vehicle rain running as running.
- the gist of the invention according to claim 50 is that the predetermined condition of the vehicle is determined based on the failure determination condition set in advance, and the switching control unit performs the failure determination. When the condition is satisfied, the continuously variable transmission state of the transmission state switching type transmission mechanism is prohibited. In this way, for example, when it is determined that the function of the control device for causing the electric continuously variable speed change behavior is reduced, the continuously variable transmission state of the transmission state switching type transmission is prohibited. Even when the speed change mechanism is not in the continuously variable transmission state, the vehicle is in the stepped transmission state, so that the vehicle travels in the same manner as in the stepless traveling but in the stepless traveling.
- the gist of the invention according to claim 51 is that the power distribution mechanism includes a first element connected to the engine, a second element connected to the first electric motor, and the transmission member. And a third element connected to the differential state switching device, wherein the differential state switching device is configured to rotate any two of the first element to the third element and / or rotate the second element in a non-rotating manner.
- An engagement device connected to the member for example, a friction engagement device, wherein the switching control means releases the engagement device and relatively rotates the first element, the second element, and the third element relative to each other; And the at least two of the first element, the second element, and the third element are connected to each other by engaging the engagement device, or the second element thereof.
- the power distribution mechanism is easily configured, and the continuously variable transmission state and the continuously variable transmission state are easily controlled by the switching control means.
- the predetermined condition of the vehicle is determined based on a preset high-speed traveling determination value, and the switching control
- the control means controls the engagement device so that the second element is in a non-rotating state when the actual vehicle speed exceeds the high-speed traveling determination value.
- the gist of the invention according to claim 53 is that the predetermined condition of the vehicle is determined based on a preset high-power travel determination value, and the switching control unit includes the drive control unit.
- the engagement device is controlled so that at least two of the first element, the second element, and the third element are interconnected when a force-related value exceeds the high-power traveling determination value. is there. In this way, for example, when the driving force-related value such as the required driving force or the actual driving force exceeds the high-power running determination value set on the high-power side, the three components of the power distribution mechanism are selected.
- the maximum value of the electric energy transmitted by the motor when the engine output is transmitted to the drive wheels exclusively through a mechanical power transmission path and operates as an electric continuously variable transmission is defined.
- the electric motor or the vehicle control device including the electric motor can be made smaller, and the gist of the invention according to claim 54 is that the power distribution mechanism is a planetary gear device, The element is a carrier of the planetary gear set, the second element is a sun gear of the planetary gear set, the third element is a ring gear of the planetary gear set, and the engaging device is the carrier, It is provided with a clutch that interconnects any two of the sun gear and the ring gear and / or a brake that couples the sun gear to a non-rotating member. With this configuration, the axial size of the power distribution mechanism can be reduced, and the power distribution mechanism can be easily configured with one planetary gear device.
- the gist of the invention according to claim 55 is that the planetary gear device is a single-view type planetary gear device. This reduces the axial dimension of the power distribution mechanism and reduces the power distribution mechanism to one single pinion type planetary gear. It is simply constructed by the vehicle device.
- the switching control means is configured to mutually connect the carrier and the sun gear in order to make the single pinion type planetary gear device a transmission having a transmission ratio of 1.
- the engaging device is controlled so that the sun gear is in a non-rotating state so that the single pinion type planetary gear device is a speed-up transmission having a speed ratio smaller than 1.
- the power distribution mechanism can be easily controlled by the switching control means as a transmission having a single-stage or multiple-stage constant speed ratio by one single pinion type planetary gear device.
- the gist of the invention according to claim 57 is that the planetary gear device is a double pinion type planetary gear device. With this configuration, the axial size of the power distribution mechanism can be reduced, and the power distribution mechanism can be easily configured by one double pinion type planetary gear device.
- the gist of the invention according to claim 58 is that the switching control means interconnects the carrier and the sun gear so that the double pinion type planetary gear device is a transmission having a speed ratio of 1.
- the engagement device is controlled so that the sun gear is in a non-rotating state in order to make the double pinion type planetary gear device a reduction gear transmission having a gear ratio larger than 1.
- the power distribution mechanism is easily controlled by the switching control means as a transmission having a single-stage or multiple-stage constant speed ratio by one double pinion type planetary gear device.
- the gist of the invention according to claim 59 is that the transmission state switching type speed change mechanism is provided in series with the power distribution mechanism between the transmission member and the drive wheel. And the speed ratio of the shift state changeover type transmission mechanism is formed based on the speed ratio of the automatic transmission. In this way, a wide range of driving force can be obtained by utilizing the speed ratio of the automatic transmission.
- the gist of the invention according to claim 60 is that an overall speed ratio of the shift state switching type transmission mechanism is formed based on a speed ratio of the power distribution mechanism and a speed ratio of the automatic transmission. Things.
- the automatic transmission is a stepped automatic transmission.
- the power distribution mechanism and the stepped automatic transmission form a continuously variable transmission in a continuously variable transmission state, and the power distribution mechanism and the stepped automatic transmission are configured.
- a stepped automatic transmission in a stepped shifting state is configured with the transmission.
- the gist of the invention according to claim 61 is that the shift of the stepped automatic transmission is executed based on a shift diagram stored in advance. With this configuration, the shift of the stepped automatic transmission is easily executed.
- the gist of the invention according to claim 62 is that the switching control means sets the continuously variable transmission state of the transmission state switching type transmission mechanism in a partial area of a vehicle rain state, that is, when the vehicle is traveling. It is used only in some driving areas and not in other driving areas. With this configuration, in the traveling region of the vehicle, for example, in a part of the traveling region suitable for continuously variable speed traveling, the shift state switching type transmission mechanism is in the electric continuously variable transmission state. Fuel efficiency is improved.
- a second electric motor is directly connected to the transmission member.
- the gist of the invention according to claim 63 for achieving the above object is a control device for a vehicle drive device for transmitting outputs from a plurality of drive sources to drive wheels, wherein (a) A switchable differential gear device interposed in a power transmission path from the plurality of drive sources to the drive wheels and capable of switching between a locked state and an unlocked state; and (b) the differential gear device based on predetermined conditions of the vehicle.
- Switching control means for selectively switching the switchable differential gear device between the lip-locking state and the non-lip-locking state. With this configuration, the switching-type differential gear device is selectively switched between the unlocked state and the locked state by the switching control means based on a predetermined condition of the vehicle.
- the above-mentioned switchable differential gear device When the vehicle is in the locked state, the areas to be operated in the unlocked state are low-medium-speed running and low-medium-power running of the vehicle. If the motor is used as another drive source in the unlocked state, the motor Therefore, the maximum value of the electric energy to be generated can be reduced, and the motor or the vehicle control device including the motor can be further downsized.
- the switching differential gear device further comprises: a first electric motor; a power distribution mechanism for distributing an output of the engine to the first electric motor and a transmission member; and a power distribution mechanism between the transmission member and the drive wheel. And a second electric motor provided in the vehicle.
- the power distribution mechanism has a first element connected to the engine, a second element connected to a first motor, and a third element connected to a second motor and a transmission member.
- the power distribution mechanism may be in one of the non-locking state in which the switchable differential gear can operate as an electric differential and the locking state in which the switching-type differential gear does not operate as an electric differential.
- a differential state switching device for enabling switching between the non-duck state and the duck state by controlling the differential state switching device. Switching. With this configuration, the differential state switching device is controlled by the switching control means, so that the switching differential gear device in the vehicle control device can be operated as an electric differential device in a non-locking state. And a locked state that does not operate as an electrical differential.
- the differential state switching device switches the switching type differential gear device to one of the unlocked state and the locked state, and to any one of a plurality of shift speeds in the locked state.
- the switching control means switches from the non-locking state to the locking state and controls the differential state switching device in accordance with a predetermined condition of the vehicle to change the switching state in the locking state. It also changes any of the multiple stages.
- the differential state switching device is controlled by the switching control means, so that the switching type differential gear device in the vehicle control device can be operated as an electric differential device in a non-locking state.
- the differential state switching device is controlled according to a predetermined condition of the vehicle, so that any one of the plurality of stages in the locked state is changed.
- the switchable differential gear when the vehicle is running at low to medium speeds and at low to medium power, the switchable differential gear is unlocked to ensure the fuel efficiency of the vehicle.
- the switching-type differential gear device does not operate as an electric differential, but is locked in accordance with high-speed running. The conversion loss between motive power and electricity generated when operating as a simple differential device is suppressed, so that fuel efficiency is improved.
- the switching differential gear device In high-power running, the switching differential gear device is locked in accordance with high-power running, and the region in which it operates as an electric differential device is low-medium-speed running and low-medium-power running of the vehicle. Therefore, the maximum value of the electric energy transmitted by the motor can be reduced, and the motor or a vehicle control device including the motor can be further downsized.
- the switching state is switched from the unlocked state to the locked state by the switching control means, and one of the plurality of stages in the locked state is changed by controlling the differential state switching device according to a predetermined condition of the vehicle. Therefore, an appropriate lock state can be obtained according to the vehicle traveling conditions such as high-speed traveling and high-power traveling.
- the predetermined condition of the vehicle is determined based on a preset high-speed traveling determination value, and the switching control unit determines that an actual vehicle speed exceeds the high-speed traveling determination value.
- the switching type differential gear device is brought into the lip state. In this way, for example, when the actual vehicle speed exceeds the high-speed running determination value set on the high vehicle speed side, the engine output is transmitted to the drive wheels exclusively through the mechanical power transmission path, and the electrical differential The conversion loss between motive power and electricity generated when operating as a device is suppressed, so that fuel efficiency is improved.
- the high-speed running determination value is a value set in advance to determine the high-speed running of the vehicle.
- the predetermined condition of the vehicle is determined based on a preset high-speed traveling determination value, and the switching control unit determines that an actual vehicle speed exceeds the high-speed traveling determination value.
- the non-locking state of the switching type differential gear device is prohibited. In this way, for example, when the actual vehicle speed exceeds the high-speed traveling judgment value set on the high vehicle speed side, the non-tuck state of the switchable differential gear device is prohibited, and the electric differential device is used. Since the conversion loss between motive power and electricity generated during operation is suppressed, the output of the engine is transmitted to the drive wheels exclusively through a mechanical power transmission path, and the fuel efficiency of the vehicle is improved.
- the predetermined condition of the vehicle is determined based on a preset high-power travel determination value, and the switching control means determines that the driving force-related value of the vehicle is the high-power travel.
- the switching-type differential gear device is brought into the tuck state when the determination value is exceeded. In this way, if the driving force-related value such as the required driving force or the actual driving force exceeds the high-power running determination value set on the relatively high-power side, the engine is exclusively driven by the mechanical power transmission path.
- the output of the motor is transmitted to the drive wheels and operated as an electric differential device, the maximum value of the electric energy transmitted by the motor can be reduced, and the motor or the vehicle control device including the motor can be made smaller.
- the driving force-related values are the transmission torque and torque in the power transmission path such as the output torque of the engine, the output torque of the transmission, and the driving torque of the driving wheels, and the throttle opening required for the torque. It is a parameter that is directly or indirectly related to the driving force of the vehicle, such as the degree, etc. Further, the high-power running determination value is a value set in advance to determine the high-power running of the vehicle.
- the predetermined condition of the vehicle is determined based on a preset high output traveling determination value
- the switching control means includes a driving force-related value of the vehicle that is high output traveling.
- the driving force-related value such as the required driving force or the actual driving force exceeds the high-power running determination value set on the relatively high-power side
- the unlocked state of the switchable differential gear device is established. Is prohibited and the maximum value of the electric energy transmitted by the electric motor when operating as an electric differential is reduced, so that the output of the engine is transmitted to the drive wheels exclusively through a mechanical power transmission path.
- the electric motor or the vehicle control device including the electric motor is further downsized.
- the predetermined condition of the vehicle includes a high-speed travel determination line and a high-power travel determination line, and a previously stored switching diagram with the vehicle speed and the vehicle driving force as parameters. It is determined based on the vehicle speed and the driving force related value of the vehicle. In this way, a high vehicle speed determination or a high torque determination is easily determined.
- the predetermined condition of the vehicle is a failure determination condition for determining a decrease in a function of a control device for setting the switchable differential gear device to the electrical non-hook state. That is, the switching control means sets the switching type differential gear device to the hook state when the failure determination condition is satisfied. With this configuration, even if the switching type differential gear device is normally in the unlocked state, it is preferentially locked in the locked state. In this case, the vehicle travel is almost the same as the travel in the lock state.
- the predetermined condition of the vehicle is determined based on the preset failure determination condition, and the switching control means performs the switching type difference when the failure determination condition is satisfied.
- the non-locking state of the dynamic gear device is prohibited. In this way, for example, when it is determined that the function of the control device for electrically bringing the differential state into a differential state is reduced, the non-stick state of the switching type differential gear device is prohibited. moving gear is turned into the locked state even if not in a non-locked state, there the run ⁇ 1 in locked state but running substantially same vehicle run fi 1 in the non-mouth-click state is ensured. '
- the power distribution mechanism includes a first element connected to the engine, a second element connected to the first electric motor, and a third element connected to the transmission member.
- the differential state switching device may be an engagement device that connects any two of the first element to the third element to each other and / or the first element to a non-rotating member, for example, a friction engagement device.
- the switching control means releases the engagement device to allow the first element, the second element, and the third element to rotate relative to each other, thereby setting the unlocked state; Locking by engaging the device to interconnect at least two of its first, second, and third elements or to render the first element non-rotating. It is. With this configuration, the power distribution mechanism is easily configured, and the switching control means can easily control the non-locking state and the locking state.
- the predetermined condition of the vehicle is determined based on a preset high-speed traveling determination value
- the switching control means is configured to determine that the actual vehicle speed exceeds the high-speed traveling determination value. And controlling the engagement device so that the first element is in a non-rotation state when the first element is turned.
- the actual vehicle speed is set to the higher vehicle speed side
- the engine output is transmitted to the drive wheels exclusively through the mechanical power transmission path, and the conversion loss between power and electricity generated when the engine operates as an electric differential device. Is suppressed, so that fuel efficiency can be improved.
- the predetermined condition of the vehicle is determined based on a preset high-power travel determination value, and the switching control means sets the driving force-related value to the high-power travel determination value. And controlling the engagement device so that at least two of the first element, the second element, and the third element are connected to each other when the distance exceeds the limit.
- the driving force-related value such as the required driving force or the actual driving force exceeds the high-power running determination value set on the high-power side
- at least two of the three elements of the power distribution mechanism are used. Since the motors are connected to each other, the maximum value of the electric energy transmitted by the motor can be reduced when the output of the engine is transmitted to the drive wheels only by a mechanical power transmission path to operate as an electric differential.
- the electric motor or a vehicle control device including the electric motor is further downsized.
- the power distribution mechanism is a planetary gear set
- the first element is a carrier of the planetary gear set
- the second element is a sun gear of the planetary gear set
- the third element is Is a ring gear of the planetary gear device
- the engagement device includes a clutch that interconnects any one of the carrier, the sun gear, and the ring gear and / or a brake that couples the sun gear to a non-rotating member.
- the planetary gear set is a single pinion type planetary gear set.
- the switching control means connects the carrier and the sun gear to each other so as to make the single pinion type planetary gear device a transmission having a transmission ratio of 1, or the single pinion type planetary gear device.
- the engagement device is controlled so that the sun gear is in a non-rotating state so that the gear device is a speed-up transmission having a speed ratio smaller than 1. In this way, a single pinion type with one power distribution mechanism A transmission having a single-stage or multiple-stage constant speed ratio by a planetary gear unit is easily controlled by the switching control means. .
- the planetary gear set is a double pinion type planetary gear set.
- the axial size of the power distribution mechanism is reduced, and the power distribution mechanism is easily configured by one double pinion type planetary gear device.
- the switching control means connects the carrier and the sun gear to each other so as to make the double pinion type planetary gear device a transmission having a transmission ratio of 1, or the double pinion type planetary gear device.
- the engagement device is controlled so that the sun gear is in a non-rotating state so that the transmission is a reduction transmission having a transmission ratio greater than 1.
- the power distribution mechanism can be easily controlled by the switching control means as a transmission having a single-stage or multiple-stage constant speed ratio by one double pinion type planetary gear device.
- the vehicle drive device provided with the switchable differential gear device further includes an automatic transmission between the transmission member and the drive wheel, and a speed ratio of the automatic transmission.
- the speed ratio of the vehicle drive device is formed based on the speed ratio. In this way, a wide range of driving force can be obtained by utilizing the speed ratio of the automatic transmission.
- an overall speed ratio of the vehicle drive device is formed based on a speed ratio of the power distribution mechanism, that is, a speed ratio of the switching differential gear device and a speed ratio of the automatic transmission. It is. With this configuration, a wide range of driving force can be obtained by utilizing the speed ratio of the automatic transmission, so that the efficiency of control as an electrical differential in the switching differential gear device can be reduced. Can be further enhanced.
- the automatic transmission is a stepped automatic transmission. With this configuration, the switchable differential gear device, the stepped automatic transmission, and the continuously variable transmission that are in the non-locking state in the vehicle drive device are configured, and are locked.
- the stepped automatic transmission is composed of the switching differential gear device and the stepped automatic transmission.
- the shift of the stepped automatic transmission is executed based on a shift diagram stored in advance. In this way, the shift of the stepped automatic transmission Easy to implement.
- the switching control thrust means changes the non-tuck state, that is, the differential state, of the switching type differential gear device into a partial area of the vehicle state, that is, during the running of the vehicle. It is used only in some driving areas and not in other driving areas. In this manner, in a rainy region, the differential gear device operates in a differential state operable as an electric differential, for example, in a part of the traveling region suitable for continuously variable speed traveling. As a result, the fuel efficiency of the vehicle is improved.
- a second electric motor is directly connected to the transmission member.
- it is sufficient to output a low torque to the output shaft of the automatic transmission, so that the size of the second electric motor is further reduced.
- the gist of the invention according to claim 65 for achieving the above object is a control device for a vehicle drive device for transmitting the output of an engine to drive wheels, comprising: A transmission state switching type transmission mechanism capable of switching between a continuously variable transmission state and a constant transmission ratio state operable as a step transmission; and (b) a vehicle speed and a vehicle load or an output of a vehicle drive device based on a predetermined relationship. And a switching control means for selectively switching the transmission state switching type transmission mechanism to any one of the continuously variable transmission state and the constant transmission ratio state based on the torque.
- a control device that includes the above-mentioned shift state switching type transmission mechanism and the above-mentioned switching control means and appropriately performs a shift control in a transmission mechanism that can operate as an electric continuously variable transmission is provided. be able to.
- the gist of the invention according to claim 66 for achieving the above object is a control device for a vehicle drive device for transmitting the output of an engine to drive wheels, comprising: A transmission state switching type transmission mechanism capable of switching between a continuously variable transmission state operable as a stepped transmission and a stepped transmission state operable as a stepped transmission; and (b) a vehicle speed and a vehicle based on a predetermined relationship.
- Switching control means for selectively switching the transmission state switching type transmission mechanism to one of the continuously variable transmission state and the stepped transmission state based on a load or an output torque of a vehicle drive device. It is assumed that.
- the transmission state switching type transmission mechanism and the switching control unit are included. Therefore, it is possible to provide a control device that suitably performs a shift control in a transmission mechanism that can operate as an electric continuously variable transmission. .
- the gist of the invention according to claim 67 for achieving the above object is a control device for a vehicle drive device for transmitting the output of an engine to drive wheels, comprising: A transmission state switching type transmission mechanism capable of switching between a continuously variable transmission state and a constant transmission state operable as a stepped transmission; and (b) controlling the vehicle speed and vehicle load or the output torque of the vehicle drive device.
- a control map in which a first region in which the shift state switching type transmission mechanism is in the continuously variable transmission state and a second region in which the shift state switching type transmission mechanism is in the constant speed change state are defined.
- switching control means for selectively switching the variable speed state switching type transmission mechanism to one of the continuously variable transmission state and the constant transmission state based on the control map. Things.
- the gist of the invention according to claim 68 for achieving the above object is a control device for a vehicle drive device for transmitting the output of an engine to drive wheels, comprising: A transmission state switching type transmission mechanism capable of switching between a continuously variable transmission state operable as a stepped transmission and a stepped transmission state operable as a stepped transmission; and (b) vehicle speed and vehicle load or vehicle driving device. A first area in which the transmission state switching type transmission mechanism is set to the stepless transmission state, and a second area in which the transmission state switching type transmission mechanism is set to the stepped transmission state. And (c) switching control means for selectively switching the shift state switching type transmission mechanism to one of the stepless shift state and the stepped shift state based on the control map. , Including It is.
- the transmission state switching type transmission mechanism since the transmission state switching type transmission mechanism, the control map in which the first region and the second region are defined, and the switching control means are included, the electric-power-free switching mechanism is provided.
- a transmission mechanism that can be selectively operated as a step transmission and a stepped transmission, A control device that suitably performs the shift control with a simple program can be provided. .
- the gist of the invention according to claim 69 for achieving the above object is that a differential mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a differential mechanism between the transmission member and the drive wheels.
- a continuously variable transmission unit having a second electric motor provided in a power transmission path and functioning as an electric continuously variable transmission; and forming a part of the power transmission path and functioning as a stepped automatic transmission.
- a control device for a vehicle drive device comprising: (a) a differential mechanism provided in the differential mechanism, wherein the stepless transmission unit is an electric stepless transmission; A differential state switching device that selectively switches the differential mechanism between a differential state that can be performed and a locked state that is non-differential, and (b) a shift line that switches a gear stage according to predetermined control parameters are defined. And the first control system used for the shift control of the stepped automatic transmission. The same control Roh, and flop, and (c) a first control map. A differential region for setting the differential state and a non-differential region for setting the non-differential state are defined by a radiator, and switching control between the differential state and the non-differential state by the differential state switching device is performed. And a second control map used for the second control map.
- the differential state switching device, the first control map, and the second control map are included, the shift control of the stepped automatic transmission and the electric continuously variable transmission can be performed. It is possible to provide a control device that suitably performs a shift control by a simple program in a transmission mechanism that can be selectively operated as a stepped transmission.
- the gist of the invention according to claim 70 for achieving the above object is that a differential mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a differential mechanism for transmitting the output member and the drive wheel.
- the gist of the invention according to claim 71 for achieving the above object is that a differential mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a differential mechanism for transmitting the output member and the drive wheel.
- a region for determining at least one driving force source that generates driving force among the engine, the first electric motor, and the second electric motor according to the lame is defined according to the determined driving force source, and the driving force source is defined.
- a first control map used for the selection control of (a), and (c) the first control map In the same control as that described above, a continuously variable transmission region in which the continuously variable transmission state is established and a continuously variable K transmission region in which the continuously variable transmission state is established by the lame control are defined, and the stepless transmission by the transmission state switching type transmission mechanism is performed.
- a second control map used for switching control between a stepped state and a stepped state is included.
- the transmission state switching type transmission mechanism, the first control map, and the second control map are included, the transmission is selected as an electric continuously variable transmission or a stepped transmission. It is possible to provide a control device that suitably performs the shift control and the selection control of the driving force source in the transmission mechanism that can be operated in a simple manner by a simple program.
- the control parameter is a vehicle speed and a vehicle load or an output torque of a vehicle drive device.
- the control parameter is a vehicle speed and a vehicle load or an output torque of a vehicle drive device.
- the gist of the invention according to claim 73 for achieving the other object is a control device for a vehicle drive device for transmitting the output of an engine to drive wheels, comprising: A speed-changeable transmission mechanism capable of switching between a continuously variable transmission state operable as a simple continuously variable transmission and a continuously variable transmission state operable as a stepped transmission; and (b) the continuously variable transmission state and Switching for selectively switching the shift state switching type transmission mechanism between the stepless shift state and the stepped shift state based on which of the stepped shift states the fuel consumption rate of the vehicle is good. And control means.
- the transmission state switching type transmission mechanism capable of switching between a continuously variable transmission state operable as an electric continuously variable transmission and a stepped transmission state operable as a stepped transmission.
- the switching control means selectively switches between the stepless shift state and the stepped shift state based on which of the stepped shift state and the stepped shift state has a better fuel consumption rate of the vehicle during traveling. Power, power, and appropriate driving that further improves fuel efficiency can be obtained. ⁇
- the gist of the invention according to claim 74 is that the fuel consumption rate of the invention according to claim 73 is sequentially calculated from the vehicle state.
- the fuel consumption rates in the continuously variable transmission state and the stepped transmission state are sequentially calculated, and the transmission state of the transmission state switching type transmission mechanism is set to a fuel-efficient traveling state.
- the apparatus further comprises a fuel consumption rate calculating means for sequentially calculating the fuel consumption rate from a vehicle state.
- the fuel consumption rates in the continuously variable shift state and the stepped shift state are sequentially calculated by the fuel consumption rate calculating means, and the shift state of the shift state switching type transmission mechanism is always a fuel-efficient running state. It is said.
- the gist of the invention according to claim 75 is that, in the invention according to claim 74, the fuel consumption rate sequentially calculated from the vehicle state is an engine speed determined from a relationship stored in advance. It is to be calculated based on the fuel consumption rate. In this way, the fuel consumption rate of the vehicle is properly calculated.
- the gist of the invention according to claim 76 is that, in the invention according to claim 74.75, the fuel consumption rate calculated from the vehicle state is determined based on the transmission efficiency from the engine to the driving wheels. It is something to be considered. In this way, the fuel consumption rate It must be calculated properly.
- the vehicle further comprises a transmission efficiency calculating means for calculating the transmission efficiency from the engine to the driving wheels. With this configuration, the vehicle fuel consumption rate is appropriately calculated in consideration of the transmission efficiency calculated by the transmission efficiency calculation means. .
- the gist of the invention according to claim 77 is that the transmission efficiency in the invention according to claim 76 changes according to the running resistance of the vehicle. In this way, the fuel consumption rate is properly calculated.
- the gist of the invention according to claim 78 is that, in the invention according to claims 76 and 77, the transmission efficiency changes depending on a vehicle speed. In this way, the fuel consumption rate is properly calculated.
- the gist of the invention according to claim 79 is that, in the invention according to claims 76 to 78, the transmission efficiency changes according to a driving force-related value of the vehicle. In this way, the fuel consumption rate is properly calculated.
- the driving power-related values are the output torque of the engine, the output torque of the transmission, the transmission torque and torque in the power transmission path such as the drive torque of the drive wheels, the throttle opening required for the torque, and the accelerator operation amount. Such parameters are directly or indirectly related to the driving force of the vehicle.
- the gist of the invention according to claim 80 is that, in the invention according to claim 73, the traveling in the continuously variable transmission state or the stepped transmission state has a higher fuel consumption rate.
- the shift state switching type transmission mechanism switches the stepless shift state and the stepped shift state based on a current vehicle state based on a pre-stored relationship in which the region for the stepless shift state or the stepped shift state is set. It can be selectively switched to any of the gearshift states. With this configuration, the shift state of the shift state switching type transmission mechanism can be easily switched to a fuel-efficient traveling state.
- the gist of the invention according to claim 81 is as follows.
- the switching control means sets the shift state switching type transmission mechanism to the stepped shift state when an actual vehicle speed exceeds a preset high-speed traveling determination value.
- the actual vehicle speed is set to the high vehicle speed set on the high vehicle speed side.
- Exceeding the high-speed running determination value the output of the engine is transmitted to the drive wheels exclusively through the mechanical power transmission path, and the conversion loss between power and electricity generated when operating as an electric continuously variable transmission. Is suppressed, so that fuel efficiency can be improved.
- the high-speed traveling determination value is determined in advance by an experiment in order to determine a high-speed traveling of a vehicle in which it is clearly advantageous in terms of fuel efficiency to switch the transmission state switching type transmission mechanism to the stepped transmission state without being based on the fuel consumption rate. This is a value determined and set in the above.
- the switching control means inhibits the continuously variable transmission state of the transmission state switching type transmission mechanism when an actual vehicle speed exceeds a predetermined high-speed traveling determination value.
- the continuously variable transmission state of the transmission state switching type transmission mechanism is prohibited, and the electronic continuously variable transmission is performed. Since the conversion loss between power and electricity generated when operating as a machine is suppressed, the output of the engine is transmitted to the drive wheels exclusively through a mechanical power transmission path, and the fuel efficiency of the vehicle is improved.
- the switching control means includes a high-power traveling in which a driving force-related value of a vehicle is set in advance.
- the transmission state switching type transmission mechanism is set to the stepped speed change state. In this way, for example, when the driving force-related value such as the required driving force or the actual driving force exceeds the high-output traveling determination value set on the relatively high output side, only the mechanical power transmission path is used.
- the output of the engine is transmitted to the drive wheels to operate as an electric continuously variable transmission, the maximum value of the electric energy transmitted by the motor can be reduced, and the motor or a vehicle control device including the motor can be further miniaturized. Is done.
- the above-mentioned high-power traveling determination value is determined based on whether the high-power traveling of a vehicle that needs to switch the transmission state switching type transmission mechanism to the stepped transmission state without being based on the fuel consumption rate, that is, the transmission state switching type transmission mechanism. This is a value that is set in advance to determine the high-power running of the vehicle that exceeds the engine output limit value determined based on the rated output of the motor that cannot be operated as a typical continuously variable transmission.
- the switching control means changes the continuously variable transmission state of the transmission state switching type transmission mechanism when a driving force-related value of a vehicle exceeds a preset high output traveling determination value. It is prohibited.
- the driving force-related value such as the required driving force or the actual driving force exceeds the high-output traveling determination value set on the relatively high-output side
- the continuously variable transmission of the transmission state switching type transmission mechanism Since the state is prohibited and the maximum value of the electric energy transmitted by the electric motor when operating as an electric continuously variable transmission is reduced, the output of the engine is driven only by the mechanical power transmission path.
- the motor or the vehicle control device including the motor is further downsized.
- the gist of the invention according to claim 83 is that, in the invention according to claims 73 to 82, the switching control means controls the transmission state switching type transmission mechanism by the electric continuously variable transmission mechanism.
- the shift state switching type transmission mechanism is set to the stepped shift state when a failure determination condition for determining a decrease in the function of the control device for setting the shift state is satisfied.
- the switching control means is configured to execute the failure determining condition ⁇ for determining a decrease in the function of a control device for setting the transmission state switching type transmission mechanism to the electronic continuously variable transmission state. This inhibits the continuously variable transmission state of the transmission state switching type transmission mechanism.
- the continuously variable shift state of the shift state switching type transmission mechanism is prohibited. Even when the mechanism is not in the continuously variable transmission state, the vehicle is in the stepped transmission state, so that the vehicle travels in a stepped manner but substantially the same as the stepless traveling is ensured.
- the shift state switching type transmission mechanism includes a first electric motor, and a power distribution for distributing an output of the engine to the first electric motor and the transmission member. And a second motor provided between the transmission member and the drive wheel.
- the power distribution mechanism includes a first element connected to the engine, a second element connected to the first motor, and a third element connected to the second motor and the transmission member. It has the following.
- the power distribution mechanism changes the speed change type transmission mechanism to the continuously variable transmission state.
- an operation state switching device for enabling switching to any one of the state and the stepped transmission state, wherein the switching control means controls the operation state switching apparatus to thereby control the continuously variable transmission state.
- the stepped shifting state is selectively switched.
- the operation state switching device is controlled by the switching control means, so that the transmission state switching type transmission mechanism in the vehicle rain control device has a continuously variable transmission state in which it can operate as a continuously variable transmission. It can be easily switched to a stepped shift state that can operate as a stepped transmission.
- the gist of the invention according to claim 85 is that, in the invention according to claim 84, the power distribution mechanism is connected to a first element connected to the engine and the first electric motor. A second element and a third element connected to the transmission member, wherein the operating state switching device is configured to connect any two of the first to third elements to each other.
- an engagement device for connecting the second element to the non-rotating member for example, a friction engagement device
- the switching control means releases the engagement device to release the first element, the second element, And the third element is relatively rotatable relative to each other, so that the continuously variable transmission state is established.
- the power distribution mechanism is easily configured, and the continuously variable transmission state and the continuously variable transmission state are easily controlled by the switching control means.
- the gist of the invention according to claim 86 is that, in the invention according to claim 85, the power distribution mechanism is a planetary gear device, and the first element is a planetary gear.
- the second element is a sun gear of the planetary gear device
- the third element is a ring gear of the planetary gear device
- the engagement device is one of the carrier, the sun gear, and the ring gear.
- / or a brake that connects the sun gear to a non-rotating member.
- the gist of the invention according to claim 87 is that, in the invention according to claim 86, the planetary gear device is a single pinion type planetary gear device. This By doing so, the axial size of the power distribution mechanism is reduced, and the power distribution mechanism is easily constituted by one single pinion type planetary gear device.
- the gist of the invention according to claim 88 is that, in the invention according to claim 87, the switching control means includes a transmission having a single-pinion type planetary gear device having a speed change ratio of 1.
- the switching control means includes a transmission having a single-pinion type planetary gear device having a speed change ratio of 1.
- the single-pinion type planetary gear device In order to make the single-pinion type planetary gear device a speed-up transmission with a gear ratio smaller than 1, the carrier and the sun gear are connected to each other, or the engagement is performed so that the sun gear is not rotated. It controls the equipment.
- the power distribution mechanism can be simply formed by the switching control means as a transmission having a single-stage or multiple-stage constant speed ratio by one single pinion type planetary gear device.
- the gist of the invention according to claim 89 is that, in the invention according to claim 88, the transmission state switching type transmission mechanism includes the power distribution mechanism between the transmission member and the drive wheel. And an automatic transmission provided in series with the transmission, and the speed ratio of the shift state switching type transmission mechanism is formed based on the speed ratio of the automatic transmission. In this way, a wide range of driving force can be obtained by utilizing the speed ratio of the automatic transmission.
- the gist of the invention according to claim 90 is that, in the invention according to claim 89, the shift state switching type is based on a gear ratio of the power distribution mechanism and a gear ratio of the automatic transmission.
- the overall speed ratio of the speed change mechanism is formed.
- the automatic transmission is a stepped automatic transmission.
- the continuously variable transmission in the continuously variable transmission state is constituted by the power distribution mechanism and the stepped automatic transmission in the transmission state switching type transmission mechanism.
- the step-type automatic transmission is constituted by the step-type automatic transmission in the step-variable shifting state.
- the gist of the invention according to claim 91 is that, in the invention according to claims 89 and 90, the automatic transmission is a stepped automatic transmission, and the stepped automatic transmission is The shift of the transmission is executed based on a shift diagram stored in advance. With this configuration, the shift of the stepped automatic transmission is easily executed.
- a second electric motor is directly connected to the transmission member.
- it is sufficient to output a low torque to the output shaft of the automatic transmission, so that the size of the second electric motor is further reduced.
- the gist of the invention according to claim 92 is as follows: (a) Of the three elements, the first element is connected to the first electric motor, the second element is connected to the prime mover, and the third element is the output.
- a continuously variable transmission electrically driven by a continuously variable transmission including a differential gear device connected to a shaft and a second electric motor operatively connected to a power transmission path between an output shaft and a drive wheel.
- a step-variable transmission unit provided in the power transmission path and configured to perform a step-variable transmission.
- the stepless transmission unit includes a stepless transmission unit.
- a gear ratio control means for controlling the gear ratio of the stepped gear portion and the gear ratio of the continuously variable gear portion in a continuously variable speed running state in which gear shifting operation is performed so as to obtain optimum fuel efficiency.
- the speed ratio control means controls the speed ratio of the stepped variable speed portion. Since the control and the speed ratio of the continuously variable transmission portion are controlled so as to obtain the optimum fuel efficiency, the optimum fuel efficiency of the vehicle can be obtained as compared with the case where the speed ratio is individually controlled. For example, by controlling the speed ratio of the stepped transmission unit so that the reverse rotation of the first motor of the continuously variable transmission unit does not occur during relatively high-speed steady running, optimal fuel economy can be obtained for the entire vehicle .
- the gist of the invention according to claim 93 is as follows: (a) Of the three elements, the first element is connected to the first motor, the second element is connected to the prime mover, and the third element is output.
- a continuously variable transmission that is electrically operated by a continuously variable transmission, including a differential gear device connected to a power shaft, and a second electric motor operatively connected to a power transmission path between the output shaft and the drive wheels.
- a control unit g for a vehicle drive device comprising: a transmission unit; and (b) a stepped transmission unit provided in the power transmission path and configured to be stepped, and (c) the stepless transmission unit In the stepless speed change control mode in which the stepless speed change operation is performed, the stepless speed A gear ratio control means for changing the gear ratio of the gear unit is included.
- the transmission of the stepped transmission unit is controlled by a speed ratio control unit. Since the speed ratio of the continuously variable transmission portion is changed in accordance with the ratio, the speed ratio of the continuously variable transmission portion and the continuously variable transmission portion is controlled so that the vehicle as a whole has high transmission efficiency.
- the gist of the invention according to claim 94 is that, in the invention according to claim 1 or claim 2, the speed ratio control means is configured to control the efficiency of the first electric motor and the second An object is to control a speed ratio of the stepped transmission portion and a speed change ratio of the continuously variable transmission portion based on the efficiency of the electric motor.
- the speed ratio control means is configured to control the first motor of the continuously variable transmission portion. Since the speed ratio of the stepped transmission portion and the speed ratio of the continuously variable transmission portion are controlled based on the efficiency and the efficiency of the first motor, the efficiency of the first motor and the efficiency of the first motor are considered. Then, since the speed ratio of the stepped transmission portion and the speed ratio of the continuously variable transmission portion are controlled, higher transmission efficiency and optimum fuel efficiency can be obtained.
- the gist of the invention according to claim 95 is that, in the invention according to claim 92 or claim 93, the speed ratio control means adjusts a speed ratio of the stepped transmission portion. Thus, the output shaft rotation speed of the continuously variable transmission is changed.
- the control device for a vehicle drive device of the invention according to claim 95 is that, in the invention according to claim 92 or claim 93, the speed ratio control means adjusts a speed ratio of the stepped transmission portion.
- the output shaft rotation speed of the continuously variable transmission is changed.
- the speed ratio control means changes the output shaft rotation speed of the continuously variable transmission portion by adjusting the speed ratio of the stepped transmission portion.
- the gist of the invention according to claim 96 is that the continuously variable transmission portion switches between a continuously variable transmission state in which the gear ratio is continuously changed and a stepped transmission state in which the gear ratio is fixed. And a continuously variable speed traveling determining means for determining that the continuously variable transmission portion has been switched to the continuously variable transmission state by the switching device.
- the speed ratio control means includes: The state has been switched to the continuously variable transmission state by the shift traveling determination means. Is determined, the speed ratio of the stepped transmission portion and the speed ratio of the continuously variable transmission portion are controlled so as to obtain optimum fuel efficiency.
- the continuously variable transmission portion is capable of continuously changing the speed ratio.
- engine fuel efficiency map storage means for storing an engine fuel efficiency map in advance
- the speed ratio control means includes Target engine speed calculating means for determining a target engine speed of the engine based on the actual accelerator opening from a fuel efficiency map; and shifting of a stepped transmission unit for obtaining the target engine speed based on the actual vehicle speed.
- a transmission ratio determining means for determining a transmission ratio and a transmission ratio of the continuously variable transmission unit.
- the target engine speed calculating means calculates an equal horsepower curve corresponding to an engine output for satisfying a driver's required driving force based on the actual accelerator opening Acc based on the engine fuel efficiency map.
- the engine speed corresponding to the intersection between the determined iso-horsepower curve and the optimum fuel efficiency curve is determined as the target engine speed.
- the two speed ratio determining means determines a total speed ratio of a speed change mechanism for obtaining the target engine speed based on the target engine speed and an actual vehicle speed, and The transmission ratio of the stepped transmission portion and the transmission ratio of the continuously variable transmission portion for obtaining the total transmission ratio are determined so that the transmission efficiency of the entire transmission mechanism is maximized.
- the two speed ratio determining means is more than the target engine speed.
- a plurality of types of gear ratio candidate values for the stepped transmission unit that can generate a large engine rotation speed are set based on the actual vehicle speed V based on the relationship between the engine rotation speed and the vehicle speed. wherein for obtaining the target Enjin rotational speed N EM, on the basis of the toe evening Le gear ratio between its speed ratio candidate value to calculate the vehicle consumption per their gear ratio candidate value, gear ratio vehicle consumption is minimized
- the candidate value is determined as the speed ratio of the stepped transmission portion, and the speed ratio of the continuously variable transmission portion is determined from the speed ratio and the total speed ratio for obtaining the target engine rotational speed.
- the fuel consumption calculation formula calculates the fuel consumption of the vehicle based on the efficiency of the first motor and the efficiency of the second motor.
- the transmission provided between the output shaft and the drive wheels is selected, for example, by a planetary gear type stepped transmission composed of a plurality of sets of planetary gear devices, or a synchronous coupling device. It consists of a continuously meshing parallel single-shaft type stepped transmission in which a plurality of gear pairs having different gear ratios that are capable of transmitting power are provided between two parallel shafts.
- the differential gear device is configured to electrically control a rotation speed of a first electric motor connected to the first element, thereby obtaining a ratio between an input shaft rotation speed and an output shaft rotation speed. It is operated as an electric continuously variable transmission whose gear ratio is continuously changed.
- a switching device for switching the stepped transmission portion having the differential gear device between a differential state and a locked state.
- the switching device includes a clutch provided between a first element and a second element of the differential gear device, and integrally rotates the three elements of the differential gear device by engagement of the clutch.
- the differential gear device preferably comprises a planetary gear device including a sun gear, a ring gear, and a carrier rotatably supporting a planetary gear meshing with the sun gear and the ring gear.
- it may be constituted by a pair of bevel gears connected to the input shaft and the output shaft, and a rotating element rotatably supporting a pinion meshing with the pair of bevel gears.
- the stepped transmission unit may be a planetary gear type stepped transmission or a stepped continuously variable transmission in which the speed change ratio is changed stepwise.
- the switching device for switching the differential gear device between the differential state and the locked state is a hydraulic device that selectively connects a part of the components of the differential gear device to each other or to a non-rotating member.
- a frictional engagement device, a powder (magnetic powder) clutch, an electromagnetic clutch, an engagement type dog clutch, and other magnetic powder type, an electromagnetic type, and a mechanical type engagement device It is provided so as to be operatively connected to any part of the power transmission path from the output shaft of the differential gear device to the drive wheels.
- the second motor is connected to any one of the rotating members such as the output shaft of the differential gear device, a rotating member in the automatic transmission provided in the power transmission path, and the output shaft of the automatic transmission. Is also good.
- the invention according to claim 97 for achieving the above object is characterized in that: (a) a power distribution mechanism that distributes the output of the engine to the first electric motor and the transmission member; A stepped automatic transmission, and a transmission device and a motor provided between the drive wheels thereof. (B)
- the power distribution mechanism comprises a sun gear , Carrier, and ring gear form three elements, and the three elements are arranged in order from one end to the other on a collinear chart that can express the rotational speed of the three elements in a straight line. Assuming two elements, a first element, and a third element, the first element is connected to the engine, the second element is connected to the first electric motor, and the third element is connected to the transmission member.
- 1st planetary gear device and its 1st a differential state switching device that selectively switches between a differential state in which the star gear device can be operated as an electric continuously variable transmission and a locked state in which the star gear device is deactivated.
- the automatic transmission includes a second planetary gear device and a third planetary gear device, and the sun gear, the carrier, and a part of the ring gear of the second planetary gear device and the third planetary gear device are connected to each other.
- the four rotational elements are composed of the four rotational elements, and the rotational speed of the four elements can be represented on a straight line.
- the fourth element is selectively connected to the transmission member via a second clutch, and is not rotated via a first brake.
- the fifth element is selectively connected to the transmission member via a third clutch, and is selectively connected to the non-rotating member via a second brake.
- the element is connected to the output rotation member of the automatic transmission, the first element is selectively connected to the transmission member via a first clutch, and the first clutch, the second clutch, the third clutch, the first brake It is characterized in that the transmission is shifted in multiple stages according to the combination of the engagement operations of the second brake.
- the invention according to claim 98 is the vehicle rain drive device according to claim 97, wherein the differential state switching device is a switching clutch for connecting the second element to the first element. And / or a switching brake for connecting the first element to a non-rotating member, and the first planetary gear unit is switched to the differential state by releasing the switching clutch and / or the switching brake, and The first planetary gear device is switched to the click state by engagement of a clutch or a switching brake.
- the invention according to claim 99 is the vehicle drive device according to claim 98, wherein the switching clutch, the first clutch, and the second brake are engaged, and A first shift stage is formed, and a second shift stage having a lower gear ratio than the first shift stage is formed by engaging the switching clutch, the first clutch, and the first brake, and The clutch, the first clutch, and the third clutch are engaged to form a third shift speed having a lower speed ratio than the second shift speed, and the switching clutch, the third clutch, and the third
- the fourth shift stage having a smaller gear ratio than the third shift stage is formed by engagement of the first brake, and the third clutch, the switching brake, and the first brake are engaged.
- the fourth change Wherein the fifth gear position the speed ratio is small is formed than stage.
- the invention according to claim 100 is the vehicle drive device according to any one of claims 97 to 99, wherein the automatic transmission includes a second sun gear, a second carrier, and a second carrier.
- a single pinion type first planetary gear train having a ring gear, and a double pinion type third planetary gear having a third sun gear, a third carrier, and a third ring gear.
- a star gear device wherein the fourth element is the second sun gear, the fifth element is the second carrier and the third carrier, and the first element is the second ring gear and the second carrier. It is a third ring gear, and the seventh element is a third sun gear thereof. .
- the invention according to claim 101 is the vehicle drive device according to any one of claims 97 to 99, wherein the automatic transmission includes a second sun gear, a second carrier,.
- a double pinion type planetary gear set having two ring gears; and a single pinion type third planetary gear set having a third sun gear, a third carrier, and a third ring gear, and the fourth element has a second element.
- the invention according to claim 102 is the vehicle drive device according to any one of claims 97 to 99, wherein the automatic transmission includes a second sun gear, a second carrier, and a second gear.
- the invention according to claim 103 is the vehicle drive device according to any one of claims 97 to 99, wherein the automatic transmission includes a second sun gear, a second carrier, and a second carrier.
- a double pinion type second planetary gear device having a ring gear; and a single pinion type third planetary gear device having a third sun gear, a third carrier, and a third ring gear.
- the invention according to claim 104 is the vehicle rain drive device according to any one of claims 97 to 99, wherein the automatic transmission includes a second sun gear, a second carrier, and a second gear.
- a third sun gear, the fifth element is the first ring gear, the sixth element is the second carrier and the third ring gear, and the seventh element is the second sun gear and the third carrier. It is characterized by the following.
- the invention according to claim 105 is the vehicle drive device according to any one of claims 97 to 99, wherein the automatic transmission includes a second sun gear, a second carrier, and a ring gear. And a single pinion-type third planetary gear device including a third sun gear, a third carrier, and a third ring gear, and the fourth element includes a second sun gear.
- the fifth element is the second carrier and the third ring gear thereof
- the sixth element is the second ring gear and the third carrier thereof
- the seventh element is the third sun gear.
- the invention according to claim 106 is the vehicle drive device according to any one of claims 97 to 99, wherein the automatic transmission includes a second sun gear, a second carrier, and a second carrier.
- a single pinion type second planetary gear device having a ring gear; and a single pinion type third planetary gear device having a third sun gear, a third carrier, and a third ring gear, wherein the fourth element has a fourth element.
- a third sun gear, the fifth element is the first ring gear, the sixth element is the second carrier and the third carrier, and the seventh element is the second sun gear and the third ring gear. It is characterized by that.
- the invention according to claim 107 is the vehicle drive device according to any one of claims 97 to 99, wherein the automatic transmission includes a second sun gear, a second carrier, and a second carrier.
- a single pinion type second planetary gear set having a ring gear, and a third pinion type third gear having a third sun gear, a third carrier and a third ring gear.
- the invention according to claim 108 is characterized in that: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels.
- a vehicle drive system comprising: an automatic transmission; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (b) the power distribution mechanism includes a first sun gear, a first sun gear, A first pinion gear connected to the engine; a first sun gear connected to the first electric motor; and a first ring gear connected to the transmission member.
- the automatic transmission includes a single pinion type second planetary gear device including a second sun gear, a second carrier, and a second ring gear, and a double pinion type second gear device including a third sun gear, a third carrier, and a third ring gear.
- a second sun gear is selectively connected to the transmission member via a second clutch, and is selectively connected to a non-rotating member via a first brake;
- the second carrier and the third carrier are selectively connected to the transmission member via a third clutch and selectively connected to a non-rotating member via a second brake, and the second ring gear and the third ring gear are provided. Is connected to an output rotary member of the automatic transmission, and a third sun gear thereof is selectively connected to the transmission member via a first clutch. .
- the invention according to claim 109 is characterized in that: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels.
- a vehicle drive system comprising: an automatic transmission; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (b) the power distribution mechanism includes a first sun gear, a first sun gear, A carrier and a first ring gear, the first carrier being the engine The first sun gear is connected to the first electric motor, and the first ring gear electrically connects a single pinion type first planetary gear unit connected to the transmission member and the first planetary gear unit.
- a differential state switching device for selectively switching between a differential state operable as a typical continuously variable transmission and an unlocked state for disabling the differential state.
- the machine comprises a double pinion type second planetary gear train having a second sun gear, a second carrier and a second ring gear, and a single pinion type third planetary gear having a third sun gear, a third carrier and a third ring gear.
- a second sun gear is selectively connected to the transmission member via a first clutch
- the second carrier and the third sun gear are connected to the transmission member via a second clutch.
- the second ring gear and the third carrier are selectively connected to the transmission member via a third clutch, and selectively connected to the non-rotating member via a first brake.
- the third ring gear is selectively connected to a non-rotating member via a brake, and the third ring gear is connected to an output rotating member of the automatic transmission.
- the invention according to claim 110 is characterized in that: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels.
- a vehicle drive device comprising: an automatic transmission; and a first motor provided between the transmission member and the drive wheel thereof, wherein (b) the power distribution mechanism includes a first sun gear, a first sun gear, A first ring gear connected to the engine; a first sun gear connected to the first electric motor; and a first ring gear connected to the transmission member.
- the automatic transmission is composed of a double pinion type second planetary gear unit having a second sun gear, a second carrier, and a second ring gear, and a single pinion type planetary gear having a third sun gear, a third carrier, and a third ring gear.
- a third planetary gear unit, wherein the second sun gear and the third sun gear are selectively connected to the transmission member via a second clutch and are selected as non-rotating members via a first brake.
- the second carrier and the third ring gear are selectively connected to the transmission member via a first clutch, and the second ring gear is selectively connected to the transmission member via a third clutch. It is connected and selectively connected to a non-rotating member via a second brake, and the third carrier is connected to an output rotating member of the automatic transmission.
- the invention according to claim 11 includes: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels.
- a vehicle drive system comprising: an automatic transmission; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (b) the power distribution mechanism includes a first sun gear, a first sun gear, A first pinion gear connected to the engine; a first sun gear connected to the first electric motor; and a first ring gear connected to the transmission member.
- C before The automatic transmission is composed of a double pinion type second planetary gear unit having a second sun gear, a second carrier, and a second ring gear, and a single pinion type planetary gear having a third sun gear, a third carrier, and a third ring gear.
- a second sun gear is selectively connected to the transmission member via a second clutch, and is selectively connected to a non-rotating member via a first brake;
- the second carrier and its third sun gear are selectively connected to the transmission member via a first clutch, and the second ring gear and the third ring gear are selectively connected to the transmission member via a third clutch.
- the third carrier is selectively connected to a non-rotating member via a second brake, and the third carrier is connected to an output rotating member of the automatic transmission.
- the invention according to claim 112 is characterized in that: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels.
- a vehicle drive device comprising: an automatic transmission; and a second electric motor provided between the transmission member and the drive wheel, (b) the power distribution mechanism includes a first sun gear , A first carrier, and a first ring gear, the first carrier being connected to the engine, the first sun gear being connected to the first electric motor, and the first ring gear being connected to the transmission member.
- the automatic transmission is a single pinion type second planetary gear device including a second sun gear, a second carrier, and a second ring gear;
- a double pinion type third planetary gear device including a third sun gear, a third carrier, and a third ring gear, wherein the second sun gear and the third carrier are selected as the transmission members via the first clutch.
- the second carrier and the third ring gear are rotatably connected to each other and connected to the output rotation member of the automatic transmission, and the second ring gear is connected to the transmission member via a third clutch.
- the third sun gear is selectively connected to the transmission member via a second clutch, and the first sun gear is selectively connected to the non-rotating member via a second brake. And selectively connected to the non-rotating member via
- the invention according to claim 113 is characterized in that (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels.
- a vehicle drive system comprising: an automatic transmission; and a second electric motor provided between the transmission member and the drive wheel thereof.
- the power distribution mechanism includes a first sun gear, a first sun gear, A first ring gear connected to the engine; a first sun gear connected to the first electric motor; and a first ring gear connected to the transmission member.
- a first planetary gear set, and a differential state switching device that selectively switches between a differential state in which the first planetary gear set can be operated as an electric continuously variable transmission and a locked state in which the first planetary gear set is deactivated.
- the automatic transmission includes a single pinion type second planetary gear unit having a second sun gear, a second carrier, and a ring gear, and a single pinion type third planetary gear having a third sun gear, a third carrier, and a third ring gear.
- a second sun gear selectively connected to the transmission member via a second clutch.
- the second carrier and its third ring gear are selectively connected to the transmission member via a third clutch while being connected to the non-rotating member via the first brake.
- the second ring gear and the third carrier are connected to an output rotating member of the automatic transmission, and the third sun gear is connected to the non-rotating member via a first clutch via a first clutch. It is characterized by being selectively connected to a member.
- the invention according to claim 114 is characterized in that: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels.
- a vehicle drive system comprising: an automatic transmission; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (b) the power distribution mechanism includes a first sun gear, a first sun gear, A first pinion gear connected to the engine; a first sun gear connected to the first electric motor; and a first ring gear connected to the transmission member.
- the dynamic transmission includes a single pinion type second planetary gear device including a second sun gear, a second carrier, and a second ring gear, and a single pinion type second planetary gear device including a third sun gear, a third carrier, and a third ring gear. And a second sun gear and a third ring gear thereof are selectively connected to the transmission member via a first clutch, and the second carrier and the third carrier are connected to the automatic transmission.
- the second ring gear is selectively connected to the transmitting member via a third clutch, and is selectively connected to the non-rotating member via a second brake.
- the sun gear is selectively connected to the transmission member via a second clutch and selectively connected to a non-rotating member via a first brake. I do.
- the invention according to claim 115 is characterized in that: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels. An automatic transmission, and a second electric motor provided between the transmission member and the drive wheel. (B) the power distribution mechanism includes a first sun gear, a first carrier, and a first ring gear, the first carrier being connected to the engine, The first sun gear is connected to the first electric motor, and the first ring gear is a single pinion type first planetary gear device connected to the transmission member, and the first planetary gear device is connected to an electric continuously variable transmission.
- the automatic transmission includes a second sun gear , A second pinion-type second planetary gear device including a second carrier, and a second ring gear, and a single pinion-type third planetary gear device including a third sun gear, a third carrier, and a third ring gear.
- the second sun gear and the third sun gear are selectively connected to a non-rotating member via a first brake
- the second carrier and the third ring gear are connected to an output rotating member of the automatic transmission
- the two ring gears are selectively connected to the transmission member via a first clutch
- the third carrier is selectively connected to the transmission member via a third clutch and a non-rotating member via a second brake.
- the invention according to claim 116 is the vehicle rain drive device according to any one of claims 108 to 115, wherein the differential state switching device includes the first carrier and the first carrier.
- the invention according to claim 117 is a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, an automatic transmission provided between the transmission member and the drive wheels, and a transmission for the transmission.
- a vehicle drive device comprising: a member and a second electric motor provided between drive members thereof, wherein the automatic transmission includes a plurality of inputs selectively connected to an output shaft of the power distribution mechanism.
- a clutch is provided, and a plurality of shift speeds are established by switching the engagement / disengagement state of the plurality of input clutches.
- the invention according to claim 118 is the vehicle drive device according to claim 117, wherein the power distribution mechanism includes a sun gear, a carrier, and a ring gear.
- the first element, the first element, and the third element are arranged in order from one end to the other end on a collinear chart in which the elements are configured and the rotational speeds of the three elements can be represented on a straight line.
- the second element is connected to the first electric motor
- the third element includes a first planetary gear unit connected to the transmission member. It is characterized.
- the invention according to claim 119 is the vehicle drive device according to claim 118, wherein the power distribution mechanism is configured to operate the first planetary gear device as an electric continuously variable transmission.
- a differential state switching device for selectively switching between a state and a locked state in which the state is deactivated is further provided.
- the invention according to claim 120 is the vehicle drive device according to any one of claims 117 to 119, wherein the automatic transmission is a stepped automatic transmission.
- the power distribution mechanism is electrically stepless by the differential state switching device.
- the differential state switching device By selectively switching between a differential state in which the transmission can operate and a locked state in which the differential state is made non-differential, the effect of improving the fuel efficiency of the transmission in which the gear ratio can be electrically changed is achieved. It is possible to obtain a driving device that has both advantages of the high transmission efficiency of a gear transmission that mechanically transmits power. For example, if the power distribution mechanism is set to the differential state in the engine's normal output range where the vehicle runs at low to medium speeds and low to medium power, the fuel efficiency of the vehicle is secured and the power distribution at high speeds is achieved.
- the mechanism If the mechanism is in the licking state and the output of the engine is transmitted to the drive wheels exclusively through the mechanical power transmission path, it will occur when the transmission is operated as a transmission whose gear ratio can be changed electrically. Since the conversion loss between power and electric energy is suppressed, fuel efficiency is improved. If the power distribution mechanism is locked during high-power running and the vehicle is operated as a low-medium-speed running and low-medium-power running range when the vehicle is operated as a transmission whose gear ratio can be changed electrically, Electric energy to be generated by the motive In other words, the maximum value of the electric energy transmitted by the motor can be reduced, and the motor or a vehicle drive device including the motor can be further downsized. Further, the automatic transmission is mainly composed of two planetary gear units. Therefore, since the axial dimension is relatively short, the axial dimension of the drive device including the same can be further reduced.
- the invention according to claim 121 for achieving the above object is characterized in that: ( a ) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member; and a power distribution mechanism between the transmission member and the drive wheels.
- a vehicle drive device comprising: a stepped automatic transmission provided; and a second electric motor provided between the transmission member and the drive wheel thereof.
- the power distribution mechanism includes: The sun gear, the carrier, and the ring gear form three elements.On a collinear chart that can express the rotational speed of the three elements in a straight line, the three elements are sequentially arranged from one end to the other.
- the first planetary gear unit to be connected and the (1) A differential state switching device that selectively switches between a differential state in which the planetary gear device can be operated as an electric continuously variable transmission and a locked state in which the planetary gear device is deactivated, c)
- the automatic transmission includes a second planetary gear unit and a third planetary gear unit, and a part of the sun gear, the carrier, and the ring gear of the second planetary gear unit and the third planetary gear unit are connected to each other.
- the four elements are formed, and the rotational elements of the four elements are arranged in order from one end to the other on a collinear diagram where the rotational speeds of the four elements can be represented on a straight line.
- the fourth element is selectively connected to the transmission member via the first clutch and selected as the non-rotating member via the second brake.
- the invention according to claim 122 is the vehicle drive device according to claim 111.
- the differential state switching device includes: a switching clutch for connecting the second element to the first element and / or a switching brake for connecting the second element to a non-rotating member; and the switching clutch and / or Alternatively, the first planetary gear device is switched to the differential state by releasing the switching brake, and the first planetary gear device is switched to the open state by engagement of the switching clutch or the switching brake.
- the invention according to claim 12 is the vehicle drive device according to claim 12, wherein the switching clutch, the first clutch, and the first brake are engaged to provide the largest gear ratio.
- a first shift stage is formed, and a second shift stage having a lower speed change ratio than the first shift stage is formed by engaging the switching clutch, the second clutch, and the first brake, and By engaging the switching clutch, the first clutch, and the second clutch, a third shift speed having a smaller speed ratio than the second shift speed is formed, and the switching clutch, the second clutch, and By engaging the second brake, a fourth shift stage having a smaller gear ratio than the third shift stage is formed, and the second clutch, the switching brake, and the first brake are engaged.
- you fifth gear position the speed ratio is small is formed than gear speed.
- the invention according to claim 124 is the vehicle drive device according to any one of claims 121 to 123, wherein the automatic transmission includes a second sun gear, a second carrier, and a second carrier.
- a double pinion type second planetary gear device having a ring gear; a single pinion type third planetary gear device having a third sun gear, a third carrier, and a third ring gear; and (2) a carrier and a third sun gear thereof, wherein the fifth element is the second ring gear, and the sixth element is the third sun gear.
- a carrier, wherein the seventh element is a second sun gear and a third ring gear thereof.
- the invention according to claim 125 is the vehicle drive device according to any one of claims 122 to 123, wherein the automatic transmission includes a second sun gear, a second carrier, and a second carrier.
- a double pinion-type second planetary gear device having a ring gear; a third pinion-type third planetary gear device having a third sun gear, a third carrier, and a third ring gear; and the fourth element has a second carrier.
- the invention according to claim 126 is the vehicle drive device according to any one of claims 121 to 123, wherein the automatic transmission includes a second sun gear, a second carrier, and a second carrier.
- the invention according to claim 127 is the vehicle drive device according to any one of claims 11 to 12, wherein the automatic transmission includes a second sun gear, a second carrier, and a second ring gear.
- a second pinion-type second planetary gear unit including a third sun gear, a third carrier, and a third ring gear, and a single pinion-type third planetary gear unit including a third ring gear.
- the invention according to claim 128 is characterized in that, in the vehicle drive device according to any one of claims 121 to 123, the automatic transmission includes a second sun gear, a second carrier, And a double pinion-type second planetary gear device including a second ring gear and a third pinion-type third planetary gear device including a third sun gear, a third carrier, and a third ring gear.
- the third sun gear, the fifth element is the second carrier, the six elements are the second ring gear and the third carrier, and the seventh element is the second sun gear and the third ring gear.
- the invention according to claim 128 is the vehicle drive device according to any one of claims 121 to 123, wherein the automatic transmission includes a second sun gear, a second carrier, and a second carrier.
- a single pinion type second planetary gear device having a ring gear; a third pinion type third planetary gear device having a third sun gear, a third carrier, and a third ring gear; and the fourth element is a second sun gear thereof.
- the third sun gear, the fifth element is the second carrier, the sixth element is the second ring gear and the third ring gear, and the seventh element is the third carrier. It is characterized.
- the invention according to claim 130 is the vehicle drive device according to any one of claims 121 to 123, wherein the automatic transmission includes a second sun gear, a second carrier, and a second carrier.
- a sun gear, the fifth element is a second carrier and a third carrier thereof, the six elements are a second ring gear and a third ring gear thereof, and the seventh element is a third sun gear thereof. It is characterized by the following.
- the invention according to claim 13 is the vehicle drive device according to any one of claims 11 to 12, wherein the automatic transmission includes a second sun gear, a second carrier, and a second gear.
- the fifth element is the second ring gear and the third ring gear
- the sixth element is the
- the third carrier is characterized in that the seventh element is the second carrier and the third sun gear.
- the invention according to claim 13 is the vehicle drive device according to any one of claims 12 to 12, wherein the automatic transmission includes a second sun gear, a second carrier, and a second carrier.
- a double pinion-type second planetary gear device having a ring gear; a third pinion-type third planetary gear device having a third sun gear, a third carrier, and a third ring gear; and the fourth element is a second carrier.
- the fifth element is the second ring gear and the third ring gear
- the sixth element is the third carrier
- the seventh element is the second sun gear and the third sun gear.
- the invention according to claim 13 is the vehicle drive device according to any one of claims 12 to 13, wherein the automatic transmission includes a second sun gear, a second carrier, and a second ring gear.
- a second pinion-type second planetary gear set comprising: a third pinion-type third planetary gear set including a third sun gear, a third carrier, and a third ring gear; and A second sun gear, the fifth element is the third ring gear, the sixth element is the second ring gear and the third carrier, and the seventh element is the second carrier and the third sun gear. It is characterized by the following.
- the invention according to claim 13 is the vehicle drive device according to any one of claims 12 to 12, wherein the automatic transmission includes a second sun gear, a second carrier, and a second gear.
- a single pinion type second planetary gear unit having a ring gear, a third sun gear, a third carrier, and a single pinion type third planetary gear unit having a third ring gear; and the fourth element is a second sun gear thereof.
- the third sun gear thereof, the fifth element is the second carrier, the sixth element is the second ring gear and the third carrier, and the seventh element is the third ring gear.
- the invention according to claim 135 is the vehicle drive device according to any one of claims 121 to 123, wherein the automatic transmission includes a second sun gear, a second carrier, A second planetary gear set of a single pinion type having a second ring gear and a third planetary gear set of a single pinion type having a third sun gear, a third carrier, and a third ring gear, and the fourth element has a A second sun gear, the fifth element is the second carrier and the third ring gear, the sixth element is the second ring gear and the third carrier, and the seventh element is the third sun gear.
- the automatic transmission includes a second sun gear, a second carrier, A second planetary gear set of a single pinion type having a second ring gear and a third planetary gear set of a single pinion type having a third sun gear, a third carrier, and a third ring gear
- the fourth element has a A second sun gear
- the fifth element is the second carrier and the third ring gear
- the sixth element is the second ring
- the invention according to claim 13 is the vehicle drive device according to any one of claims 12 to 12, wherein the automatic transmission includes a second sun gear, a second carrier, and a second carrier.
- a single pinion type second planetary gear device having one ring gear; a third pinion type third planetary gear device having a third sun gear, a third carrier, and a third ring gear; and the fourth element is a third sun gear thereof.
- the fifth element is the second ring gear
- the sixth element is the second carrier and the third carrier
- the seventh element is the second sun gear and the third ring gear.
- the invention according to claim 13 is characterized in that: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels.
- a vehicle drive system comprising: an automatic transmission; and a second electric motor provided between the transmission member and the drive wheel thereof.
- the power distribution mechanism includes a first sun gear, a first sun gear, A first ring gear connected to the engine; a first sun gear connected to the first electric motor; and a first ring gear connected to the transmission member.
- the automatic transmission is composed of a double pinion type second planetary gear train having a second sun gear, a second carrier, and a second ring gear, and a single pinion type gear having a third sun gear, a third carrier, and a third ring gear.
- a third planetary gear set, the second sun gear and the third ring gear are selectively connected to a non-rotating member via a first brake, and the second carrier and the third sun gear are 1 is selectively connected to the transmission member via a clutch, and is selectively connected to a non-rotating member via a second brake, and the second and ring gears are selectively connected to the transmission member via a second clutch.
- the third carrier is selectively connected to a non-rotating member via a third brake, and the third carrier is connected to an output rotating member of the automatic transmission.
- the invention according to claim 13 is characterized in that: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels.
- a vehicle drive system comprising: an automatic transmission; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (b) the power distribution mechanism includes a first sun gear, a first sun gear, A first pinion gear connected to the engine; a first sun gear connected to the first electric motor; and a first ring gear connected to the transmission member.
- the automatic transmission includes a double pinion type second planetary gear unit having a second sun gear, a second carrier, and a third ring gear, and a single pinion type third planetary gear having a third sun gear, a third carrier, and a third ring gear.
- a second sun gear is selectively connected to a non-rotating member via a first brake, and the second carrier and the third sun gear are connected to the transmission member via a first clutch.
- the second ring gear and the third carrier are selectively connected to the non-rotating member via a second brake, and the second ring gear and the third carrier are selectively connected to the transmission member via a second clutch.
- a third ring gear is selectively connected to a non-rotating member via a third brake, and the third ring gear is connected to an output rotating member of the automatic transmission.
- the invention according to claim 13 is characterized in that: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels.
- a vehicle drive system comprising: an automatic transmission; and a second electric motor provided between the transmission member and the drive wheel, (b) the power distribution mechanism includes a first sun gear A first carrier and a first ring gear, the first carrier being connected to the engine, a first sun gear being connected to the first electric motor, and a first ring gear being connected to the transmission member.
- a single pinion type first planetary gear set, and the first planetary gear set is selectively switched between a differential state in which it can be operated as an electric continuously variable transmission and a locked state in which it can be deactivated.
- the automatic transmission includes a double planetary gearbox having a second sun gear, a second carrier, and a second ring gear, and a third sun gear.
- a third carrier, and a single-pinion type third planetary gear device having a third ring gear, and the second sun gear and the third sun gear are connected to the transmission member via a first clutch. And selectively connected to the non-rotating member via the second brake, and the second carrier is selectively connected to the non-rotating member via the first brake, the second ring gear and the second ring gear.
- the third carrier is selectively connected to the transmission member via a second clutch and selectively connected to a non-rotating member via a third brake, and the third ring gear is configured to rotate the output rotation of the automatic transmission. It is characterized by being connected to a member.
- the invention according to claim 140 is characterized in that: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels.
- a vehicle drive system comprising: an automatic transmission; and a second electric motor provided between the transmission member and the drive wheel thereof.
- the power distribution mechanism includes a first sun gear, a first sun gear, A first pinion gear connected to the engine; a first sun gear connected to the first motor; and a first pinion connected to the transmission member.
- Type first planetary gear set a differential state in which the first planetary gear set can be operated as an electric continuously variable transmission, and a differential state in which the first planetary gear set can be selectively switched between a locked state and an inoperative state.
- the dynamic transmission includes a double pinion type second planetary gear device having a second sun gear, a second carrier, and a second ring gear, and a single pinion type gear having a third sun gear, a third carrier, and a third ring gear.
- a third planetary gear set, and the second sun gear and the third sun gear are connected via a first clutch to the front.
- the second carrier and the third ring gear are selectively connected to the transmission member and to the non-rotating member via the second brake, and the second carrier and the third ring gear are selectively connected to the non-rotating member via the first brake.
- the second ring gear is selectively connected to the transmission member via a second clutch, and is selectively connected to the non-rotating member via a third brake.
- the three carriers are connected to an output rotation member of the automatic transmission.
- the invention according to claim 141 is characterized in that: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels.
- a vehicle drive system comprising: an automatic transmission; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (b) the power distribution mechanism includes a first sun gear, a first sun gear, A first ring gear connected to the engine; a first sun gear connected to the first electric motor; and a first ring gear connected to the transmission member.
- Type first planetary gear set a differential state in which the first planetary gear set can be operated as an electric continuously variable transmission, and a differential state in which the first planetary gear set can be selectively switched to a non-operable locked state.
- the automatic transmission includes a double pinion type second planetary gear device including a second sun gear, a second carrier, and a second ring gear, and a single pinion type including a third sun gear, a third carrier, and a third ring gear.
- the second sun gear and the third ring gear are selectively connected to a non-rotating member via a first brake, and the second carrier is connected to the transmission via a second clutch.
- the second ring gear and the third carrier are selectively connected to a member and to a non-rotating member via a third brake.
- the second ring gear and the third carrier are connected to an output rotating member of the automatic transmission.
- the sun gear is selectively connected to the transmission member via a first clutch, and is selectively connected to a non-rotating member via a second brake. That.
- the invention according to claim 142 is: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels. An automatic transmission, and a second electric motor provided between the transmission member and the drive wheel.
- the power distribution mechanism includes a first sun gear, a first carrier, and a first ring gear, the first carrier being connected to the engine, The first sun gear is connected to the first electric motor, and the first ring gear is connected to the transmission member by a single ⁇ 2 on type first planetary gear device, and the first planetary gear device is electrically connected to the first planetary gear device.
- a differential state switching device that selectively switches between a differential state operable as a stepped transmission and an unlocked state in which it is deactivated, and (c) the automatic transmission includes: A single pinion type second planetary gear set including a second sun gear, a second carrier, and a second ring gear; and a double pinion type third planetary gear set including a third sun gear, a third carrier, and a third ring gear.
- the second sun gear and its third sun gear are selectively connected to the transmission member via a first clutch and selectively connected to a non-rotating member via a second brake, and the second carrier is connected to a second carrier.
- the clutch is selectively connected to the transmission member via a two-clutch and selectively connected to a non-rotating member via a third brake, and the second ring gear and the third ring gear are output rotating members of the automatic transmission.
- the third carrier is selectively connected to a non-rotating member via a first brake.
- the invention according to claim 144 is characterized in that: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels. And a first electric motor provided between the transmission member and the drive wheel thereof. (B)
- the power distribution mechanism includes a first sun gear, a first sun gear, A first carrier and a first ring gear, the first carrier being connected to the engine, the first sun gear being connected to the first electric motor, and the first ring gear being a single gear connected to the transmission member. Selectively switching between a union type first planetary gear set, a differential state in which the first planetary gear set can be operated as an electric continuously variable transmission, and a buckled state in which this is disabled.
- the automatic transmission includes a single pinion type two planetary gear train including a second sun gear, a second carrier, and a second ring gear, and a double pinion type third planetary gear including a third sun gear, a third carrier, and a third ring gear.
- Planetary gear set The second sun gear is selectively connected to the transmission member via a first clutch, and is selectively connected to a non-rotating member via a second brake, and includes a second carrier and the second carrier.
- the third carrier is selectively connected to the transmission member via a second clutch and selectively connected to a non-rotating member via a third brake, and the second ring gear and the third ring gear are connected to the automatic transmission.
- a third sun gear is selectively connected to a non-rotating member through a first brake.
- the invention according to claim 144 is: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels.
- a vehicle drive system comprising: an automatic transmission; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (b) the power distribution mechanism includes a first sun gear, a first sun gear, A first pinion gear connected to the engine; a first sun gear connected to the first electric motor; and a first ring gear connected to the transmission member.
- a first planetary gear set, and a differential state switching device that selectively switches between a differential state in which the first planetary gear set can be operated as an electric continuously variable transmission and a locked state in which the first planetary gear set is deactivated.
- the automatic transmission includes a double pinion type second planetary gear unit including a second sun gear, a second carrier, and a second ring gear, and a single pinion type second planetary gear including a third sun gear, a third carrier, and a third ring gear.
- a second sun gear is selectively connected to the transmission member via a first clutch, and is selectively connected to a non-rotating member via a second brake.
- the carrier and its third sun gear are selectively connected to a non-rotating member via a first brake, and the second ring gear and the third ring gear are selectively connected to the transmission member via a second clutch. And selectively connected to a non-rotating member via a third brake, the third carrier being connected to an output rotating member of the automatic transmission.
- the invention according to claim 144 is characterized in that: (a) a power distribution mechanism that distributes the output of the engine to the first electric motor and the transmission member, and is provided between the transmission member and the drive wheels.
- a vehicle drive device comprising a stepped automatic transmission and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (b) the power distribution mechanism comprises: A sun gear, a first carrier, and a first ring gear, the first carrier being connected to the engine, the first sun gear being connected to the first electric motor, and the first ring gear being connected to the transmission member.
- the automatic transmission is a double pinion type second planetary gear device including a second sun gear, a second carrier, and a second ring gear; Third sun gear, third carrier, and And a single pinion type third planetary gear train having a third ring gear, the second sun gear and the third sun gear are selectively connected to a non-rotating member via a first brake, and the second carrier is It is selectively connected to the transmission member via a first clutch and is selectively connected to a non-rotating member via a second brake, and the second ring gear and the third ring gear are connected via a second clutch. And selectively connected to the non-rotating member via a third brake, and the third carrier is connected to the output rotating member of the automatic transmission. It is characterized by the following.
- the invention according to claim 146 is characterized in that: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels.
- a vehicle drive system comprising: an automatic transmission; and a second electric motor provided between the transmission member and the drive wheel thereof, wherein (b) the power distribution mechanism includes a first sun gear, a first sun gear, And a first ring gear, wherein the first carrier is connected to the engine, the first sun gear is connected to the first electric motor, and the first ring gear is a single pinion type connected to the transmission member.
- the automatic transmission includes a double pinion type second planetary gear unit having a second sun gear, a second carrier, and a second ring gear, a third sun gear, and a third key.
- a single pinion type third planetary gear device having a third ring gear, the second sun gear of which is selectively connected to the transmission member via a first clutch and the second brake of the second sun gear.
- the second carrier and the third sun gear are selectively connected to the non-rotating member via a first brake, and the second ring gear and the third carrier are selectively connected to the non-rotating member via a first brake.
- the third ring gear is connected to the transmission member via a second clutch, and is selectively connected to the non-rotating member via a third brake. It is characterized in that it is.
- the invention according to claim 147 is characterized in that: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels.
- a vehicle drive device comprising: an automatic transmission; and a first motor provided between the transmission member and the drive wheel thereof, wherein (b) the power distribution mechanism includes a first sun gear, a first sun gear, A first pinion gear connected to the engine; a first sun gear connected to the first electric motor; and a first ring gear connected to the transmission member.
- the automatic transmission includes a single pinion-type second planetary gear set including a second sun gear, a second carrier, and a second ring gear, and a single pinion-type third planetary gear including a third sun gear, a third carrier, and a third ring gear.
- a second sun gear and a third sun gear thereof are selectively connected to the transmission member via a first clutch and selectively connected to a non-rotating member via a second brake.
- the second carrier is selectively connected to the transmission member via a second clutch, and is selectively connected to a non-rotating member via a third brake.
- the second ring gear and the third carrier Is connected to an output rotating member of the automatic transmission, and a third ring gear thereof is selectively connected to a non-rotating member via a first brake. That.
- the invention according to claim 148 is characterized in that: (a) the output of the engine is A power distribution mechanism for distributing to the transmission member, a stepped automatic transmission provided between the transmission member and the drive wheel, and a second electric motor provided between the transmission member and the drive wheel (B) the power distribution mechanism includes a first sun gear, a first carrier, and a first ring gear, the first carrier being connected to the engine, The first sun gear is connected to the first electric motor, and the first ring gear is a single pinion type first planetary gear device connected to the transmission member, and the first planetary gear device is connected to an electric continuously variable transmission.
- the automatic transmission includes a second sun gear, a second 2 Carrier and 2nd ring gear And a single pinion type third planetary gear device including a third sun gear, a third carrier, and a third ring gear, and the second sun gear is connected via a first clutch. And selectively connected to the non-rotating member via a second brake, and the second carrier and the third ring gear are selectively connected to the transmission member via a second clutch.
- the second ring gear and the third carrier are connected to the output rotating member of the automatic transmission, and the third sun gear is connected to the non-rotating member via a third brake. It is characterized by being selectively connected to a non-rotating member via a first brake.
- the invention according to claim 149 is characterized in that: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member, and a stepped type provided between the transmission member and the drive wheels.
- a vehicle drive system comprising: an automatic transmission; and a second electric motor provided between the transmission member and the drive wheel thereof.
- the power distribution mechanism includes a first sun gear, a first sun gear, And a first ring gear, wherein the first carrier is connected to the engine, the first sun gear is connected to the first electric motor, and the first ring gear is a single pinion type connected to the transmission member.
- the clutch is selectively connected to the transmission member via a clutch, and selectively connected to a non-rotating member via a third brake, and the third sun gear is selectively connected to the transmission member via a first clutch. It is characterized by being connected and selectively connected to a non-rotating member via a second brake.
- the invention according to claim 150 is the vehicle drive device according to any one of claims 1337 to 149, wherein the differential state switching device includes the first carrier and the first sun gear. And / or a switching brake for connecting the first sun gear thereof to a non-rotating member.
- the invention according to claim 151 includes: (a) a power distribution mechanism for distributing the output of the engine to the first electric motor and the transmission member; and an automatic transmission provided between the transmission member and the drive wheels.
- a vehicle drive device including a transmission member and a first electric motor provided between the drive wheel and the drive wheel.
- the power distribution mechanism includes three elements including a sun gear, a carrier, and a ring gear. The three elements are arranged in order from one end to the other on the alignment chart that can express the rotational speeds of the three elements on a straight line.
- the first element is connected to the engine, the second element is connected to the first electric motor, and the third element is provided with a planetary gear unit connected to the transmission member;
- the transmission is configured to rotate the transmission member.
- the speed can be increased and output.
- the invention according to claim 15 is the vehicle drive device according to claim 15, wherein the power distribution mechanism is a differential that can operate the first planetary gear device as an electric continuously variable transmission.
- a differential state switching device for selectively switching between a state and a locked state in which the state is deactivated is further provided.
- a differential state switching device As a result, the power distribution mechanism can be selectively switched between a differential state in which it can operate as an electric continuously variable transmission and a locked state in which it can be made non-differential. It is possible to obtain a drive device that has both the advantages of improving the fuel efficiency of the transmission that can be changed and the high transmission efficiency of the gear transmission that mechanically transmits power.
- the fuel efficiency of the vehicle is secured and If the distributing mechanism is in the locked state and the output of the engine is transmitted to the driving wheels exclusively through the mechanical power transmission path, it will occur when the transmission operates as a transmission whose gear ratio can be changed electrically. Since the conversion loss between the motive power and the electric energy is suppressed, fuel efficiency is improved.
- the motor In other words, the maximum value of the electric energy transmitted by the motor can be reduced, and the motor or a vehicle drive device including the motor can be further downsized. Further, since the automatic transmission is mainly composed of two planetary gear units, the axial dimension is relatively short, so that the axial dimension of the drive unit including the automatic transmission can be further reduced.
- the rotation speed of the transmission member can be increased by the automatic transmission. Therefore, even when the vehicle is running at high speed, the transmission member and the transmission member are rotated integrally. Since the rotation speed of the third element of the planetary gear set is relatively low, the first motor connected to the first element is rotated in the negative direction, that is, the first motor is supplied with electric power. The situation for rotating is reduced. As a result, fuel efficiency can be improved. ⁇ Brief description of the drawings
- FIG. 1 illustrates the configuration of a drive device for a hybrid vehicle according to an embodiment of the present invention.
- FIG. 2 shows the relationship between the shifting operation and the operation of the hydraulic friction engagement device used when the hybrid rain-driving device of the embodiment of FIG. 1 is operated steplessly or steppedly. It is an operation chart to explain.
- FIG. 3 is an alignment chart for explaining the relative rotational speed of each gear when the hybrid vehicle rain drive device of the embodiment of FIG. 1 is operated in a stepped manner.
- FIG. 4 is a diagram illustrating an example of a state of the power distribution mechanism when the state is switched to the continuously variable transmission state, and is a diagram corresponding to the power distribution mechanism portion in the alignment chart of FIG.
- FIG. 5 is a diagram showing the state of the power distribution mechanism 16 when the transmission is switched to the stepped shift state by the engagement of the switching clutch C0, and the power distribution mechanism shown in the nomographic chart of FIG. It is a diagram corresponding to a part.
- FIG. 6 is a diagram for explaining input / output signals of the electronic control device provided in the drive device of the embodiment of FIG.
- FIG. 7 is a functional block diagram illustrating a main part of the control operation of the electronic control device of FIG.
- FIG. 8 is a diagram showing a relationship stored in advance used for switching control between the stepless control area and the stepped control area in the switching control means of FIG.
- FIG. 9 is an example of a shift operation device operated to select a plurality of types of shift positions including a shift lever.
- FIG. 10 shows an example of a change in the engine rotation speed associated with an upshift in a stepped transmission.
- FIG. 11 is a functional block diagram for explaining a main part of a control operation of an electronic control device according to another embodiment of the present invention, and is a diagram corresponding to FIG.
- FIG. 12 is a diagram illustrating the switching operation of the switching control means in the electronic control device of the embodiment of FIG.
- FIG. 13 is a flowchart illustrating a main part of the control operation of the electronic control device in the embodiment of FIG. 11.
- FIG. 14 shows a configuration of a drive device for a hybrid vehicle according to another embodiment of the present invention.
- FIG. 2 is a skeleton diagram to be described, and is a diagram corresponding to FIG.
- FIG. 3 is an operation chart to be described, and is a view corresponding to FIG. 2.
- FIG. 16 is a collinear diagram for explaining the relative rotational speed of each gear when the drive device of the hybrid vehicle of the embodiment of FIG. It is.
- FIG. 17 is a skeleton diagram illustrating a configuration of a drive device for a hybrid vehicle according to another embodiment of the present invention, and is a diagram corresponding to FIG.
- FIG. 18 illustrates the relationship between the shift operation and the combination of the operation of the hydraulic friction engagement device used when the drive device of the hybrid vehicle according to the embodiment of FIG.
- FIG. 3 is an operation chart, corresponding to FIG. 2.
- FIG. 19 is a collinear diagram illustrating the relative rotational speed of each gear when the drive device of the hybrid vehicle according to the embodiment of FIG. 17 is operated in a stepped manner, and corresponds to FIG. 3. It is.
- FIG. 20 illustrates the relationship between the shift operation and the combination of the operation of the hydraulic friction engagement device used when the drive device of the hybrid vehicle of the embodiment of FIG. It is an operation chart.
- FIG. 21 is a collinear diagram illustrating the relative rotational speed of each gear when the drive device of the hybrid vehicle according to the embodiment of FIG. 17 is operated in a continuously variable transmission.
- FIG. 22 is a skeleton diagram illustrating a configuration of a drive device for a hybrid vehicle rain according to another embodiment of the present invention, and is a diagram corresponding to FIG.
- FIG. 23 illustrates a relationship between a shift operation and a combination of operations of a hydraulic friction engagement device used when the drive device of the hybrid vehicle according to the embodiment of FIG. 22 is steppedly shifted.
- FIG. 3 is an operation chart, corresponding to FIG. 2.
- FIG. 24 is an alignment chart for explaining the relative rotational speed of each gear when the drive device of the hybrid vehicle according to the embodiment of FIG. FIG.
- FIG. 25 illustrates the relationship between the shift operation and the combination of the operation of the hydraulic friction engagement device used when the drive device of the hybrid vehicle according to the embodiment of FIG. It is an operation chart.
- FIG. 26 is an alignment chart for explaining the relative rotational speed of each gear when the drive device of the hybrid vehicle according to the embodiment of FIG. ⁇
- FIG. 27 is a skeleton diagram illustrating a configuration of a drive device for a hybrid vehicle according to another embodiment of the present invention, and is a diagram corresponding to FIG.
- FIG. 28 shows the relationship between the shift operation and the operation of the hydraulic friction engagement device used when the drive device of the hybrid vehicle according to the embodiment of FIG. 2 '7 is operated steplessly or steppedly.
- FIG. 3 is an operation chart for explaining FIG. '
- FIG. 29 is a collinear diagram illustrating the relative rotational speeds of the respective gear stages when the hybrid rain-driving device of the embodiment of FIG. 27 is operated in a stepped manner, and corresponds to FIG. 3.
- FIG. 29 is a collinear diagram illustrating the relative rotational speeds of the respective gear stages when the hybrid rain-driving device of the embodiment of FIG. 27 is operated in a stepped manner, and corresponds to FIG. 3.
- FIG. 30 is a skeleton diagram illustrating a configuration of a drive device for a hybrid vehicle according to another embodiment of the present invention, and is a diagram corresponding to FIG.
- FIG. 31 shows the relationship between the shifting operation and the operation of the hydraulic friction engagement device used when the drive device of the hybrid vehicle of the embodiment of FIG. 30 is operated in a stepless or stepped variable speed operation. This is an operation diagram to be described, and is a diagram corresponding to FIG.
- FIG. 32 is a collinear diagram illustrating the relative rotational speeds of the respective gears when the hybrid vehicle driving device of the embodiment of FIG. 30 is operated in a stepped speed change, and is a diagram corresponding to FIG. 3. It is.
- FIG. 33 is a skeleton diagram illustrating a configuration of a drive device for a hybrid vehicle according to another embodiment of the present invention, and is a diagram corresponding to FIG.
- FIG. 34 is a skeleton diagram illustrating a configuration of a drive device for a hybrid vehicle according to another embodiment of the present invention, and is a diagram corresponding to FIG.
- FIG. 35 is a skeleton diagram illustrating a configuration of a drive device for a hybrid vehicle according to another embodiment of the present invention, and is a diagram corresponding to FIG.
- FIG. 36 shows the relationship between the shift operation and the operation of the hydraulic friction engagement device used in the case where the drive device of the hybrid vehicle of the embodiment of FIG.
- FIG. 28 is an operation chart to be described, which corresponds to FIG. 28.
- FIG. 37 is a collinear diagram illustrating the relative rotational speed of each gear when the drive system of the hybrid vehicle according to the embodiment of FIG. 35 is operated in a stepped manner, and corresponds to FIG. FIG.
- FIG. 38 is a skeleton diagram illustrating a configuration of a drive device for a hybrid vehicle according to another embodiment of the present invention, and is a diagram corresponding to FIG.
- FIG. 39 is a skeleton diagram illustrating a configuration of a drive device for a hybrid vehicle according to another embodiment of the present invention, and is a diagram corresponding to FIG. '
- FIG. 40 shows the relationship between the shifting operation and the operation of the hydraulic friction engagement device used when the hybrid rain-driving drive device of the embodiment of FIG. 39 is operated steplessly or steppedly.
- FIG. 15 is an operation chart for explaining FIG. 15 and is a view corresponding to FIG. '
- FIG. 41 is a collinear diagram illustrating the relative rotational speed of each gear when the drive device of the hybrid vehicle according to the embodiment of FIG. 39 is operated in a stepped speed change, and corresponds to FIG. 16.
- FIG. 41 is a collinear diagram illustrating the relative rotational speed of each gear when the drive device of the hybrid vehicle according to the embodiment of FIG. 39 is operated in a stepped speed change, and corresponds to FIG. 16.
- FIG. 42 is a skeleton diagram illustrating a configuration of a drive device for a hybrid vehicle according to another embodiment of the present invention, and is a diagram corresponding to FIG.
- FIG. 43 shows the relationship between the shifting operation and the operation of the hydraulic friction engagement device used when the drive device of the hybrid vehicle of the embodiment of FIG. It is an operation chart to be described, and is a figure corresponding to FIG.
- FIG. 44 is a collinear diagram illustrating the relative rotational speed of each gear when the drive system of the hybrid vehicle according to the embodiment of FIG. FIG.
- FIG. 45 is a skeleton diagram illustrating a configuration of a drive device for a hybrid vehicle according to another embodiment of the present invention, and is a diagram corresponding to FIG.
- FIG. 46 is a skeleton diagram illustrating a configuration of a drive device for a hybrid vehicle according to another embodiment of the present invention, and is a diagram corresponding to FIG.
- FIG. 47 is a skeleton diagram illustrating a configuration of a drive device for a hybrid vehicle according to another embodiment of the present invention, and is a diagram corresponding to FIG.
- FIG. 48 shows the relationship between the shifting operation and the operation of the hydraulic friction engagement device used when the drive device of the hybrid vehicle of the embodiment of FIG. 47 is operated with stepless or stepped variable speed operation. It is an operation
- FIG. 49 is a collinear diagram illustrating the relative rotational speed of each gear when the drive device of the hybrid vehicle according to the embodiment of FIG. 47 is operated in a stepped manner, and corresponds to FIG. FIG.
- FIG. 50 is a skeleton diagram illustrating a configuration of a drive device for a hybrid vehicle according to another embodiment of the present invention, and is a diagram corresponding to FIG. 47.
- FIG. 51 shows an example of a shift state manual selection device which is a seesaw type switch as a switching device and operated by a user to select a shift state.
- FIG. 52 is a functional block diagram for explaining a main part of another control operation of the electronic control device of FIG.
- FIG. 53 is a diagram exemplifying a stepped shift control map stored in advance on two-dimensional coordinates of a vehicle speed axis and an output torque axis for a shift determination of the automatic transmission unit.
- the stepped shift control map corresponds to an upshift line and a downshift line.
- FIG. 54 is a diagram exemplifying an example of a driving force source selection control map stored in advance on the same two-dimensional coordinates as described above in order to switch between engine driving and motor driving. This drive power source selection control map corresponds to the boundary between the engine running area and the motor running area.
- FIG. 55 5 shows the engine speed when the motor is running with the differential section in a continuously variable transmission state.
- FIG. 4 is a diagram for explaining an operation state in which the degree is maintained at substantially zero, and is a diagram corresponding to a differential section in the alignment chart of FIG. 3.
- FIG. 56 shows an example of a previously stored switching control map represented by two-dimensional coordinates of the vehicle speed axis and the output torque axis. This switching control map corresponds to the boundary between the stepless control area and the stepped control area.
- FIG. 57 is a comprehensive control map including the stepped shift control map of FIG. 53, the driving force source selection control map of FIG. 54, and the switching control map of FIG.
- FIG. 58 is a diagram illustrating an example of a stepped shift control map for a single mode stored in advance in two-dimensional coordinates of a vehicle speed axis and an output torque axis, and is a diagram corresponding to FIG. is there.
- FIG. 59 is a diagram illustrating an example of a driving force source selection control map for a power mode stored in advance and represented in two-dimensional coordinates of a vehicle speed axis and an output torque axis.
- FIG. 59 is a diagram illustrating an example of a driving force source selection control map for a power mode stored in advance and represented in two-dimensional coordinates of a vehicle speed axis and an output torque axis.
- FIG. 60 shows the stepped shift control map of FIG. 58, the driving force source selection control map of FIG. 59, and the switching control map of FIG. It is a comprehensive control map for the first mode, and is a diagram corresponding to FIG.
- Fig. 6i shows an example of a pre-stored engine fuel efficiency map composed of the two-dimensional coordinates of the engine rotation speed axis and the engine torque axis, which is expressed by the isotorque curve (dashed line) and the isofuel curve ( (Solid line).
- This engine fuel efficiency map is used to determine the gear ratio of the automatic transmission unit and the gear ratio of the differential unit that give the target engine rotational speed.
- FIG. 62 is a flowchart for explaining the hybrid drive control operation by the electronic control device in the embodiment of FIG.
- FIG. 63 is a functional block diagram illustrating a main part of a control operation of another embodiment of the electronic control device of FIG. 6.
- FIG. 64 is an example of a fuel efficiency map used for calculating the fuel consumption rate.
- FIG. 65 is an example showing the transmission efficiency in the continuously variable transmission state and the stepped transmission state that change with the vehicle speed.
- FIG. 66 is a flowchart illustrating a main part of the control operation of the electronic control device in the embodiment of FIG. 63.
- FIG. 67 is a function block diagram for explaining a main part of a control operation of another embodiment of the electronic control device of FIG. 6, and is another embodiment of the embodiment of FIG.
- FIG. 68 is a diagram showing the relationship used for the switching operation of the switching control means of the embodiment of FIG.
- FIG. 69 is a functional block diagram for explaining a main part of a control operation of another embodiment of the electronic control device of FIG. 6, and is another embodiment of the embodiment of FIG.
- FIG. 70 is a diagram showing the relationship used for the switching operation of the switching control means of the embodiment of FIG.
- FIG. 71 is a functional block diagram illustrating a main part of a control operation of another embodiment of the electronic control device in FIG. 6.
- FIG. 72 is a diagram showing an example of a pre-stored optimum fuel efficiency map used to calculate the efficiency ⁇ ? ⁇ 1 of the first electric motor M1 when calculating the fuel consumption of the vehicle.
- FIG. 7 is a diagram showing an example of an optimal fuel efficiency map stored in advance used for calculating 7 M 2.
- FIG. 74 is a diagram illustrating a shift diagram used for the stepped shift control when the differential unit (the continuously variable transmission unit) is not in the continuously variable transmission state.
- FIG. 75 is a flowchart for explaining a main part of the control operation of the electronic control device of the embodiment of FIG. 71, that is, a gear ratio change control operation of the stepped transmission portion during deceleration traveling.
- FIG. 76 is a flowchart illustrating the control operation of the gear ratio calculation routine of FIG. 75 in detail.
- FIG. 77 is a skeleton diagram for explaining the configuration of the hybrid vehicle drive device according to one embodiment of the present invention.
- FIG. 78 shows a shift operation and a hydraulic friction engagement device used when the hybrid vehicle drive device of the embodiment of FIG. 77 is operated in a stepless or stepped variable speed operation.
- 5 is an operation chart for explaining a relationship with a combination of the operations of FIG.
- FIG. 79 is a collinear diagram illustrating the relative rotational speed of each gear when the hybrid vehicle drive device of the embodiment of FIG. 77 is operated in a stepped speed change.
- FIG. 80 is a skeleton view for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 81 is a skeletal view illustrating the configuration of a hybrid vehicle rain drive device according to another embodiment of the present invention.
- FIG. 82 is a skeleton view illustrating the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 83 is a skeleton view illustrating the configuration of a drive device for a hybrid vehicle according to another embodiment of the present invention.
- FIG. 84 is a skeleton view for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 85 is a skeleton diagram for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 86 is a skeleton view for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 87 is a skeleton diagram for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 88 is a skeleton diagram illustrating the configuration of a drive device for a hybrid vehicle according to another embodiment of the present invention.
- FIG. 89 is an example of a nomographic chart illustrating a shift operation of the drive device of the embodiment of FIG.
- FIG. 90 is an engagement table showing the relationship between the shift speed of the drive device of the embodiment of FIG. 88 and the combination of engagement of the hydraulic friction engagement device.
- FIG. 91 is a skeleton view illustrating the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 92 illustrates the configuration of a hybrid vehicle rain drive device according to an embodiment of the present invention.
- FIG. 93 shows the relationship between the shift operation and the operation of the hydraulic friction engagement device used when the hybrid vehicle drive device of the embodiment of FIG. It is an operation chart to explain.
- FIG. 94 is an alignment chart illustrating the relative rotational speed of each gear when the hybrid vehicle drive device of the embodiment of FIG. 92 is operated in a stepped speed change.
- FIG. 95 is a skeleton diagram for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 96 is a skeleton view for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 97 is a skeleton view for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 98 is a skeleton view for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 99 is a skeleton view for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 100 is a skeleton diagram for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 101 is a skeleton view for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 102 is a skeleton view for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 103 is a skeletal view for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 104 is a skeleton view for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 105 is a skeleton view for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 106 is a skeleton view for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 107 is a skeletal view illustrating the configuration of a hybrid vehicle drive device according to another embodiment of the present invention. .
- FIG. 108 is a skeleton diagram for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention.
- FIG. 109 is a skeleton diagram for explaining the configuration of a hybrid vehicle drive device according to another embodiment of the present invention. Explanation of symbols
- Vehicle drive system shifting state switching type transmission mechanism
- Stepped automatic transmission (stepped automatic transmission, stepped transmission, automatic transmission)
- Hybrid control means drive power source selection control means
- FIG. 1 is a skeleton diagram for explaining a driving device 10 of a hybrid vehicle to which a control device according to an embodiment of the present invention is applied.
- a drive unit 10 has an input as a rotating member disposed on a common axis in a transmission case 12 (hereinafter, referred to as a case 12) as a non-rotating member attached to the vehicle body.
- a power distribution mechanism 16 as a differential mechanism directly or indirectly connected to the input shaft 14 via a pulsation absorbing damper (vibration damping device) (not shown), and the power distribution mechanism
- a stepped automatic transmission 20 connected in series via a transmission member (transmission shaft) 18 between 16 and the output shaft 22, and is connected to the automatic transmission 20.
- the drive device 10 is suitably used for an FR (front engine / rear drive) type vehicle that is vertically installed in a vehicle, and includes an engine 8 as a driving force source for traveling and a pair of driving wheels 38. As shown in FIG. 7, power is transmitted to a pair of drive wheels 38 via a differential gear device (final reduction gear) 36 and a pair of axles in that order.
- the driving device 10 is configured symmetrically with respect to its axis, the lower side is omitted in the portion representing the driving device 10 in FIG. The same applies to the following embodiments.
- the differential section 11 also functions as a switching type transmission section, and has two steps This is a part that enables shifting.
- the differential section 11 is a mechanical mechanism for distributing the output of the engine 8 input to the input shaft 14 to the machine, and outputs the output of the engine 8 to the first motor M 1.
- a power distribution mechanism 16 as a differential mechanism for distributing the power to the transmission member 18 and a second electric motor M2 provided so as to rotate integrally with the transmission member 18. is there.
- the power distribution mechanism 16 is a mechanical mechanism for mechanically synthesizing or distributing the output of the engine 8 input to the input shaft 14, and outputs the output of the engine 8 to the first electric motor M 1 and the transmission member. 18 or the output of the engine 8 and the output of the first electric motor Ml are combined and output to the transmission member 18.
- the second motor M2 is provided so as to rotate integrally with the transmission member 18, but may be provided at any part between the transmission member 18 and the output shaft 22.
- the first motor M 1 and the second motor M 2 of the present embodiment are so-called motor generators having a power generation function
- the first motor M 1 has a generator (generation) function for generating a reaction force.
- the second motor M2 has at least a motor (motor) function for outputting a driving force.
- Each of the first motor M1 and the second motor M2 also functions as a driving power source for traveling, similarly to the engine 8.
- the power distribution mechanism 16 mainly includes a single pinion type first planetary gear device 24 having a predetermined gear ratio 1 of, for example, about “0.418”, a switching clutch C 0 and a switching brake B 0.
- the first planetary gear device 24 includes a first sun gear S1, a first planetary gear P1, a first carrier CA1, which supports the first planetary gear P1 so as to be able to rotate and revolve, and a first planetary gear P.
- a first ring gear R1 meshing with a first sun gear S1 via 1 is provided as a rotating element (element). Assuming that the number of teeth of the first sun gear S 1 is Z S 1 and the number of teeth of the first ring gear R 1 is Z R 1, the gear ratio p 1 is Z S 1 / Z R 1.
- the first carrier CA 1 is connected to the input shaft 14, that is, the engine 8, the first sun gear S 1 is connected to the first electric motor Ml, and the first ring gear R 1 is a transmission member. Connected to 18.
- the switching brake B 0 is provided between the first sun gear S 1 and the transmission case 12, and the switching clutch B 0
- the CO is provided between the first sun gear S1 and the first carrier CAl.
- the output of the engine 8 is distributed to the first motor M 1 and the transmission member 18, and the electric power generated from the first motor M 1 by a part of the distributed output of the engine 8. Since the electric energy is stored in the engine and the second electric motor M2 is driven to rotate, the transmission member 18 is continuously rotated regardless of the predetermined rotation of the engine 8, for example, in a continuously variable transmission state (electric CVT state). Is made to change. That is, the power distribution mechanism 16 electrically changes the gear ratio 0 (the rotation speed of the input shaft 14 / the rotation speed of the transmission member 18) from the minimum value O min to the maximum value O raax. For example, a differential state that functions as an electric continuously variable transmission in which the gear ratio a0 is continuously changed from the minimum value Omin to the maximum value Omax, for example, a continuously variable transmission state. . '
- the power distribution mechanism 16 In this state, if the switching clutch C0 or the switching brake B0 is engaged during vehicle rain running with the output of the engine 8, the power distribution mechanism 16 will be in the differential state in which the differential action is not performed, that is, the locked state. It is said. More specifically, when the switching clutch CO is engaged and the first sun gear S1 and the first carrier CA1 are integrally engaged, the power distribution mechanism 16 becomes the first planetary gear device 2 The first sun gear S 1, the first carrier CA 1, and the first ring gear R 1, which are the three elements of 4, are in a mutually locked state, that is, in a locked state, that is, a differential state in which the differential action is not performed. The switching type transmission unit 11 is also in the non-differential state.
- the power distribution mechanism 16 operates at a constant speed that functions as a transmission with the gear ratio 0 fixed at “1”. State, that is, a stepped shift state.
- the switching brake B0 is engaged in place of the switching clutch C0 and the first sun gear S1 is connected to the transmission case 1
- the power distribution mechanism 16 disengages the first sun gear S1.
- the switchable transmission portion 11 is also in a non-differential state by being in a locked state in which it is made to rotate, that is, in a non-differential state in which the differential action is not performed.
- the power distribution mechanism 1 6 Is a constant speed state, that is, a stepped speed state in which the transmission ratio a0 functions as a speed-up transmission fixed to a value smaller than “1”, for example, about 0.7.
- the switching clutch C 0 and the switching brake B 0 can operate the power distribution mechanism 16 as an electric continuously variable transmission that can change the differential state, for example, the gear ratio continuously.
- a non-differential state for example, a non-differential state, ie, a lock state in which the stepless speed change operation is deactivated and the gear ratio change is locked without being operated as an electric continuously variable transmission. It functions as a differential state switching device that selectively switches to In other words, the switching clutch CO and the switching brake B0 are in a non-locking state (differential state) in which the switching-type transmission unit 11 can operate as an electric differential device.
- a non-locking state in which it can operate as a continuously variable transmission that can be operated ie, a continuously variable transmission state in which it can be operated in an electric continuously variable transmission, and a locked state in which it does not operate as an electric differential (non-driving state
- a continuously variable transmission state in which it can be operated in an electric continuously variable transmission
- a locked state in which it does not operate as an electric differential
- gear ratios for example, as a single-stage or multiple-stage transmission with one or more kinds of gear ratios, ie, a locked state in which the continuously variable transmission is not operated and the continuously variable transmission is not operated and the gear ratio change is locked constantly.
- a differential state switching device that selectively switches to a constant speed state in which the gear ratio can be operated as a one-stage or multiple-stage transmission, a gear state switching Type gearbox (mechanism), differential state switching device Functioning as a device.
- the power distribution mechanism 16 corresponds to a switchable differential (planetary) gear device that can switch between a locked state and an unlocked state.
- the automatic transmission 20 includes a single pinion type second planetary gear unit 26, a single pinion type third planetary gear unit 28, and a single pinion type fourth planetary gear unit 30.
- the second planetary gear unit 26 is connected to a second sun gear S 1, a second planetary gear P 2, a second carrier CA 2 that supports the second planetary gear P so that it can rotate and revolve, and a second planetary gear P.
- a second ring gear R2 that meshes with the second sun gear S2 is provided, and has a predetermined gear ratio p2 of, for example, about "0.562".
- the third planetary gear set 28 includes a third sun gear S3, a third planetary gear P3, a third carrier CA3 that supports the third planetary gear P3 so that it can rotate and revolve, and a third planetary gear P3.
- a third ring gear R3 that meshes with the third sun gear S3 via For example, it has a predetermined gear ratio p 3 of about “0.425”.
- the fourth planetary gear device 30 is connected via a fourth sun gear S4, a fourth planetary gear P4, a fourth carrier CA4 that supports the fourth planetary gear P4 so that it can rotate and revolve, and a fourth planetary gear P4.
- the number of teeth of the second sun gear S2 is ZS2, the number of teeth of the second ring gear R2 is ZR2, the number of teeth of the third sun gear S3 is ZS3, and the number of teeth of the third ring gear R3 is ZR3. 4 Assuming that the number of teeth of the sun gear S 4 is ZS 4 and the number of teeth of the fourth ring gear R 4 is ZR 4, the gear ratio p 2 is ZS 2 / ZR 2 and the gear ratio p 3 is ZS 3 / ZR 3, The gear ratio p4 is ZS4 / ZR4.
- the second sun gear S 2 and the third sun gear S 3 are integrally connected to each other, selectively connected to the transmission member 18 via the second clutch C 2, and
- the second carrier CA 2 is selectively connected to the case 12 via the second brake B 2
- the fourth ring gear R 4 is selectively connected to the case 12 via the brake B 1.
- the second ring gear R 2, the third carrier CA 3, and the fourth carrier CA 4 are integrally connected to the case 12 via the shaft, and are connected to the output shaft 22, and are connected to the output shaft 22.
- R3 and the fourth sun gear S4 are integrally connected and selectively connected to the transmission member 18 via the first clutch C1.
- the switching clutch C 0, the first clutch C 1, the second clutch C 2, the switching brake B 0, the first brake B, the second brake B 2, and the third brake B 3 are often used in conventional automatic transmissions for vehicles.
- Hydraulic friction engagement device used in which a plurality of friction plates superimposed on each other are wound on a wet multi-plate type pressed by a hydraulic actuator or on the outer peripheral surface of a rotating drum.
- One end of one or two bands is constituted by a band brake or the like tightened by a hydraulic actuator for selectively connecting members on both sides on which the band is interposed.
- the drive device 10 configured as described above, for example, as shown in the engagement operation table of FIG.
- the power distribution mechanism 16 is provided with the switching clutch C 0 and the switching brake B 0, and when either the switching clutch C 0 or the switching brake B 0 is engaged, the power is transmitted.
- the distribution mechanism 16 has a continuously variable transmission state in which it can operate as a continuously variable transmission as described above, and a constant transmission state in which it can operate as a single-stage or multi-stage transmission having one or more types of gear ratios. It is possible to do. Therefore, in the drive unit 10, the step-variable transmission is performed between the power distribution mechanism 16 and the automatic transmission 20 that are brought into the constant speed change state by engaging one of the switching clutch C0 and the switching brake B0.
- a transmission is constituted by the power distribution mechanism 16 and the automatic transmission 20 which are in a continuously variable transmission state by disengaging any of the switching clutch C 0 and the switching brake B 0. Is done.
- the transmission (drive unit) 10 is switched to the stepped speed change state by engaging one of the switching clutch C 0 and the switching brake B 0, and the switching clutch C 0 and the switching brake B By not engaging any of the 0 operations, the state can be switched to the continuously variable transmission state. That is, it functions as a shift state switching type transmission mechanism capable of switching between a continuously variable shift state operable as an electric continuously variable transmission and a stepped shift state operable as a stepped transmission. Also, it can be said that the differential section (switchable transmission section) 11 is also a transmission that can be switched between a stepped transmission state and a continuously variable transmission state.
- the engagement of the switching clutch C 0, the first clutch C 1, and the third brake B 3 causes the gear ratio 1 to decrease. Is established at the maximum value, for example, about “3.357”, and the gear ratio ⁇ is established by engagement of the switching clutch C0, the first clutch C1, and the second brake B2.
- the second gear is established in which 2 is smaller than the first gear, for example, about "2.180", and the switching clutch C0, the first clutch C1, and the first brake B1 are engaged.
- the third gear stage in which the gear ratio ⁇ 3 is smaller than the second gear stage, for example, about “1.424” is established, and the switching clutch CO, the first The engagement of the clutch C1 and the second clutch C2 establishes the fourth gear stage in which the gear ratio a4 is smaller than that of the third gear stage, for example, about "1.000". Due to the engagement of the first clutch C1, the second clutch C2, and the switching brake B0, the fifth gear having a gear ratio a5 smaller than that of the fourth gear, for example, about 0.75. A step is established. Further, due to the engagement of the second clutch C2 and the third brake B3, the gear ratio R is a value between the first gear and the second gear, for example, about "3.209". The reverse gear is established. When the neutral “N” state is set, for example, only the switching clutch C0 is engaged.
- both the switching clutch C 0 and the switching brake B 0 in the engagement table shown in FIG. 2 are released.
- the power distribution mechanism 16 functions as a continuously variable transmission
- the automatic transmission 20 in series functions as a stepped transmission.
- the rotational speed input to the automatic transmission 20, that is, the rotational speed of the transmission member 18 is steplessly changed with respect to each of the first, third, and fourth speeds.
- a stepless speed ratio range can be obtained. Therefore, the gear ratio between the respective gears is continuously variable continuously, so that the total gear ratio aT of the driving device 10 as a whole can be continuously obtained.
- FIG. 3 includes a differential unit 11 or a power distribution mechanism 16 functioning as a continuously variable transmission unit or a first transmission unit, and an automatic transmission 20 functioning as a stepped transmission unit or a second transmission unit.
- FIG. 3 is a collinear diagram that can represent, on a straight line, the relative relationship between the rotational speeds of the rotating elements having different coupling states for each gear in the driving device 10.
- the alignment chart of FIG. 3 shows the relative relationship of the gear ratio p of each of the planetary gear units 24, 26, 28, and 30 in the horizontal axis direction, and shows the relative rotational speed in the vertical axis direction.
- the lower horizontal line X1 of the three horizontal axes indicates zero rotational speed
- the upper horizontal line X indicates the rotational speed “1.0”, that is, the engine 8 connected to the input shaft 14.
- the horizontal axis XG indicates the rotating speed of the power transmitting member 1 8.
- Corresponding first sun Gear S 1, 1st rotating element (1st element) 1st carrier CA 1 corresponding to RE 1, 3rd rotating element (3rd element) Indicates the relative rotation speed of 1st ring gear R 1 corresponding to RE 3 The distance between them is determined according to the gear ratio 1 of the first planetary gear set 24. That is, assuming that the interval between the vertical lines Y 1 and Y 2 corresponds to 1, the interval between the vertical lines Y 2 and Y 3 corresponds to the gear ratio P 1.
- the five vertical lines Y4, ⁇ 5, ⁇ 6, ⁇ ⁇ 8 of the automatic transmission 20 correspond to the fourth rotation element (the fourth element) RE4 in order from the left and mutually.
- the second sun gear S 2 and the third sun gear S 3 are connected to the second carrier C ⁇ 2 corresponding to the fifth rotating element (fifth element) RE 5 and the sixth rotating element (sixth element) RE 6.
- the corresponding fourth ring gear R4 is connected to the seventh rotating element (seventh element) RE7, and the second ring gear R2, third carrier CA3, fourth carrier CA4, which is interconnected, Rotating element (eighth element)
- a third ring gear R 3 and a fourth sun gear S 4 corresponding to R ⁇ 8 and interconnected with each other, and their intervals are the second, third, and fourth planets.
- the gear ratio is determined according to the gear ratios ⁇ 2, ⁇ 3, and ⁇ 4 of the gear device 26.28.30. That is, as shown in FIG. 3, the distance between the sun gear and the carrier is set to an interval corresponding to 1 for each of the second, third, and fourth planetary gear units 26, 28, and 30. Is set at an interval corresponding to ⁇ .
- the driving device (transmission mechanism) 10 of the present embodiment is a power distribution mechanism (stepless transmission portion) 16 or a differential
- the first rotating element RE 1 (first carrier CA 1), which is one of the three rotating elements (elements) of the planetary gear device 24, is connected to the input shaft 14 and the other rotating via the switching clutch C 0.
- One of the elements is selectively connected to the first sun gear S 1, and one of the other rotating elements is the second rotating element RE 2 (first sun gear S 1) is connected to the first motor ⁇ 1
- the third rotating element RE 3 (first ring gear R 1) as the remaining rotating element is connected to the transmission member 18 and the second electric motor ⁇ .
- the rotation speed of the first ring gear R 1 which is linear and indicated by the intersection of 0 and the vertical line Y 3 decreases or increases. Let me do. Also, when the first sun gear S 1 and the first carrier CA 1 are connected by the engagement of the switching clutch CO, the above-mentioned three rotating elements rotate in the body, so that the straight line 0 is made coincident with the horizontal line X 2. The transmission member 18 is rotated at the same speed as the engine speed NE. When the rotation of the first sun gear S1 is stopped by the engagement of the switching brake B0, the straight line L0 is in the state shown in FIG. 3, and is indicated by the intersection of the straight line L0 and the vertical line Y3. The rotation speed of the first ring gear R1, that is, the transmission member 18 is input to the automatic transmission portion 20 at a rotation speed higher than the engine rotation speed NE. '
- FIG. 4 and 5 are diagrams corresponding to the power distribution mechanism 16 in the alignment chart of FIG.
- FIG. 4 shows an example of the state of the power distribution mechanism 16 when the state is switched to the continuously variable transmission state by releasing the switching clutch C 0 and the switching brake B 0.
- the rotation of the first sun gear S1 indicated by the intersection of the straight line L0 and the vertical line Y1 is increased or decreased by controlling the reaction force generated by the first electric motor M1, a straight line is generated.
- the rotation speed of the first ring gear R1 indicated by the intersection of the first ring gear R1 and the vertical line Y3 is decreased or increased.
- FIG. 5 shows the state of the power distribution mechanism 16 when the state is switched to the constant speed change state (stepped speed change state) by the engagement of the switching clutch C0. That is, when the first sun gear S 1 and the first Kiyarya CA 1 is connected, the third rotating element is to rotate integrally, the straight line L 0 is aligned with the horizontal line X 2, the same as the engine rotational speed N E The rotation causes the transmission member 18 to rotate. Alternatively, when the rotation of the first sun gear S1 is stopped by the engagement of the switching brake B0, the power distribution mechanism 16 is brought into a non-differential state functioning as a speed increasing mechanism. 3 and the rotation of the first ring gear R 1, that is, the transmission member 18, indicated by the intersection of the straight line L 0 and the vertical line Y 3. Speed is input to the automatic transmission 2 0 at a rotational speed higher than the engine rotational speed N E.
- the fourth rotating element RE 4 is selectively connected to the transmission member 18 via the second clutch C 2 and is selectively connected to the case 12 via the first brake B 1.
- the fifth rotating element RE 5 is selectively connected to the case 11 via the second brake B 2
- the sixth rotating element RE 6 is connected to the case 12 via the third brake B 3.
- the seventh rotating element RE 7 is selectively connected to the output shaft 22, and the eighth rotating element RE 8 is selectively connected to the transmission member 18 via the first clutch C 1.
- the rotation speed of the second speed output shaft 2 is indicated at the intersection with the line Y7, and the oblique line L3 determined by the engagement of the first clutch C1 and the first brake B1 and the output shaft
- the rotation speed of the third speed output shaft 22 is shown at the intersection with the vertical line Y7 indicating the rotation speed of the seventh rotation element RE7 connected to 22 and the first clutch C1 and the second clutch.
- the rotation speed of shaft 22 is shown.
- FIG. 6 illustrates a signal input to the electronic control device 40 for controlling the drive device 10 of the present embodiment and a signal output from the electronic control device 40.
- the electronic control unit 40 includes a so-called microcomputer including a CPU, a ROM, a RAM, an input / output interface, and the like. By performing signal processing according to a program stored in advance in 0M, hybrid drive control relating to the engine 8, the electric motors Ml, M2, and shift control of the automatic transmission 20 are executed. Things.
- the aforementioned electronic control unit 4 0, from the respective sensors and switches shown in FIG. 6, a signal representative of the signal indicative of the engine water temperature, a signal representing the shift position, the rotational speed of the Enjin 8 E down Jin rotational speed N E, A signal indicating the gear ratio train set value, a signal for commanding the M (Mooring and Driving) mode, an air conditioner signal indicating the operation of the air conditioner, a vehicle speed signal corresponding to the rotation speed of the output shaft 22, an automatic transmission 20 Oil temperature signal indicating the hydraulic oil temperature, signal indicating side brake operation, signal indicating foot brake operation, catalyst temperature signal indicating catalyst temperature, accelerator opening signal indicating accelerator pedal operation amount, cam angle signal, snow motor Signal that indicates the speed setting, acceleration signal that indicates the longitudinal acceleration of the vehicle, auto cruise signal that indicates the auto cruise, vehicle weight signal that indicates the weight of the vehicle, and wheels for each driving wheel A wheel speed signal indicating the speed, a signal indicating the presence or absence of a stepped switch operation for switching the power distribution mechanism 16 to a constant speed change state so that
- the electronic control unit 40 adjusts the drive signal to the throttle actuator for controlling the opening of the throttle valve and the supercharging pressure.
- Pressure adjustment signal for operating the air conditioner electric air conditioner drive signal for operating the electric air conditioner, ignition signal for commanding the ignition timing of engine 8, command signal for commanding the operation of motors M1 and M, shift indicator Shift position (operating position) display signal for operating the gear, gear ratio display signal for displaying the gear ratio, snow mode display signal for displaying the snow mode, and preventing the wheels from slipping during braking ABS actuation signal to activate ABS actuator, M mode display signal to indicate that M mode is selected, hydraulic distribution mechanism for power distribution mechanism 16 and hydraulic friction engagement device of automatic transmission 20
- a drive command signal for actuating the pump, a signal for driving an electric heater evening, signal etc. to the cruise controller port Lumpur control computer is output, respectively.
- FIG. 7 is a functional block diagram illustrating a control method of the drive device 10, that is, a main part of a control function of the electronic control device 40.
- Switching control means 5 for example pre-stored relationship is shown in Fig. 8 (switching map) from the actual engine rotational speed N E and related to the driving force of the hybrid vehicle drive-force-related value, for example, the engine output torque T E based on the bets, their Enjin rotational speed N E and the engine output torque T E and driving or whether the vehicle state is driving apparatus 1 0 is a continuously variable control region and the continuously variable shifting state kinetic represented by device 1 It is determined whether or not 0 is within the stepped control region where 0 is set as the stepped shift state.
- the switching control means 50 determines that it is in the stepped shift control area, the switching control means 50 outputs a signal to the hybrid control means 52 to disallow (prohibit) the hybrid control or the continuously variable shift control, and The stepped shift control means 54 is allowed to perform a preset shift control during the stepped shift.
- the stepped shift control unit 54 executes the automatic shift control according to a shift diagram (not shown) stored in the shift diagram storage unit 56 in advance.
- FIG. 2 shows a combination of operations of the hydraulic friction engagement devices selected in the shift control at this time, that is, C0, C1, C2, B0, B1, B2, and B3.
- the power transmission mechanism 16 In the first to fourth speeds of the stepped automatic transmission control mode, the power transmission mechanism 16 is fixed by the engagement of the switching clutch C 0, and the speed change ratio ⁇ 0 is 1 In the fifth speed, the changeover clutch B0 is engaged instead of the changeover clutch C0, so that the power transmission mechanism 16 has a fixed gear ratio 0, for example. It functions as a sub transmission of about 0.7. That is, in this stepped automatic transmission control mode, the entire drive unit 10 including the power distribution mechanism 16 functioning as the auxiliary transmission and the automatic transmission 20 functions as a so-called automatic transmission.
- the driving force-related value is a parameter corresponding to the driving force of the vehicle on a one-to-one basis, and includes not only the driving torque or driving force at the driving wheels 38 but also the output torque of the automatic transmission 20.
- the driving torque is output torque ⁇ . It may be calculated from ⁇ or the like in consideration of the differential ratio, the radius of the drive wheel 38, or the like, or may be directly detected by, for example, a torque sensor or the like. The same applies to the other torques described above.
- the power distribution mechanism A command to release the switching clutch C 0 and the switching brake ⁇ 0 is output to the hydraulic control circuit 42 so that 16 can be electrically continuously variable.
- the power distribution mechanism A command to release the switching clutch C 0 and the switching brake ⁇ 0 is output to the hydraulic control circuit 42 so that 16 can be electrically continuously variable.
- it outputs a signal for permitting the hybrid control to the hybrid control means 52, and outputs a signal for fixing to the preset gear at the time of the continuously variable shift to the stepped shift control means 54.
- a signal for permitting automatic shifting according to the shift diagram stored in the shift diagram storage means 56 in advance is output.
- the automatic speed change is performed by the stepped speed change control means 54 by an operation excluding the engagement of the switching clutch C0 and the switching brake # 0 in the engagement table of FIG.
- the power distribution mechanism 16 functions as a continuously variable transmission and the automatic transmission 20 in series functions as a stepped transmission, so that an appropriate amount of driving force can be obtained
- the first, second, third, and fourth speeds of the automatic transmission 20 are The rotation speed input to the automatic transmission 20, that is, the rotation speed of the transmission member 18 is steplessly changed, so that a stepless speed ratio width is obtained at each gear. Therefore, the gear ratio between the gears is continuously variable continuously, so that the total gear ratio aT of the entire drive device 10 can be obtained continuously.
- the hybrid control means 52 operates the engine 8 in an efficient operation range while optimizing the distribution of the driving force between the engine 8 and the first motor M1 and / or the second motor M2. I'm going to change it. For example, at the running vehicle speed at that time, the required output of the driver is calculated from the accelerator pedal operation amount and the vehicle speed, the required driving force is calculated from the required output of the driver and the required charging value, and the total rotation speed of the engine is calculated. calculating an output, based on the total output and the engine rotational speed N E, to control the amount of power generated by the first electric motor M 1 and controls the Enjin 8 so as to obtain the engine output.
- the hybrid control means 52 executes the control in consideration of the gear position of the automatic transmission 20 or issues a shift command to the automatic transmission 20 to improve fuel efficiency.
- the power distribution mechanism 16 functions as an electric continuously variable transmission.
- the hybrid control means 52 is configured to operate the engine 10 along the previously stored optimum fuel efficiency curve, which achieves both drivability and fuel efficiency during continuously variable speed running, so that the engine 10 is operated.
- a target value of the gear ratio a T is determined, and the gear ratio a 0 of the power distribution mechanism 16 is controlled so as to obtain the target value. It will be controlled within the range of 0.5.
- the hybrid control means 52 supplies the electric energy generated by the first electric motor Ml to the power storage device 60 and the second electric motor M2 through the inverter 58, so that the main part of the power of the engine 8 is Although it is mechanically transmitted to the transmission member 18, part of the power of the engine 8 is consumed for power generation of the first electric motor M 1 and converted into electric energy there, and the electric power is transmitted through the inverter 58.
- Energy is supplied to the second motor M2 or the first motor M1 and transmitted from the first motor M2 or the first motor M1. It is transmitted to member 18.
- a part of the power of the engine 8 is converted into electric energy by the related equipment from the generation of electric energy to consumption by the second electric motor M2, and the electric energy is converted into mechanical energy. Electric and electronic components are configured.
- the hybrid control means 52 uses the electric CVT function (differential action) of the switching type transmission unit 11 to drive only the electric motor, for example, only the second electric motor M2, regardless of whether the engine 8 is stopped or idle.
- the vehicle can be started and run, so-called motor start and motor run.
- Motor starting and motor running are relatively low output torques, which are generally considered to have poor engine efficiency compared to the high torque range.
- ⁇ region or low engine torque T E region or is performed at a relatively low vehicle speed region or low load region of the vehicle speed V (see area demarcation solid line A in FIG. 1 2). Therefore, usually, the motor start is executed prior to the engine start.
- the output torque T E is a predetermined value TE 1 or more high torque range of the engine 8 (high output running region '), set the engine rotational speed N E is advance predetermined value NE 1 or more high speed region, ie, the engine rotational speed N E and preparative one barrel gear ratio high vehicle speed region the vehicle speed is above a predetermined value which is one of the vehicle state is uniquely determined by the ⁇ T which is, or output torque T E and speed N high output region output to be calculated over a predetermined from E thereof engine 8, because it is set as a step-variable control region, relatively the stepped shift control engine 8
- the stepless speed change control is executed at a high output torque, a relatively high rotation speed, or a relatively high output, and the stepless speed change control is performed at a relatively low output torque, a relatively low rotation speed, or a relatively low output of the engine 8, i.e., the engine.
- the boundary line between the stepped control region and the stepless control region in FIG. 12 is, for example, a high vehicle speed determination line that is a series of high vehicle speed determination values and a high output travel determination line that is a series of high output travel determination values. Yes, it is. .
- FIG. 9 is a diagram showing an example of the shift operation device 46 which is a manual transmission operation device.
- the shift operation device 46 includes, for example, a shift lever 48 that is disposed beside the driver's seat and is operated to select a plurality of types of shift positions.
- the shift lever 48 is connected to the clutch C1 and the clutch C1, for example, as shown in the engagement operation table of FIG.
- the shift positions shown in the above “P” to “M” positions are as follows: “P” position and “N” position are non-travel positions selected when the vehicle is not driven, and “R” position, "D” and “M” positions are run fi 1 position be selected when fi 1 run the vehicle.
- the “D” position is also the fastest running fi 1 position, and for example, the “4” range to “L” range in the “M” position is the engine brake range where the engine braking effect can be obtained.
- the “M” position is, for example, provided adjacent to the width direction of the vehicle at the same position as the “D” position in the front-rear direction of the vehicle, and the shift lever 48 is operated to the “M” position.
- any one of the “D” range to the “L” range is changed in accordance with the operation of the shift lever 48.
- the "M” position has an upshift position "10” and a downshift position "-" in the front-rear direction of the vehicle, and the shift lever 48 is used to shift the upshift position.
- the shift lever 48 is used to shift the upshift position.
- the five shift ranges from the “D” range to the “L” range in the “M” position are on the high-speed side (the minimum gear ratio)
- the transmission range of the gear (gear) is different so that the automatic transmission 20 has different speed ranges with different total gear ratios T. It is a restriction.
- the shift lever 48 is moved from the upshift position “10” and the downshift position “1” to the “M” position by urging means such as a spring. It is automatically returned.
- the shift operating device 46 is provided with a shift position sensor (not shown) for detecting each shift position of the shift lever 48, and the shift position of the shift lever 48 and the “M” position. The number of operations and the like are output to the electronic control unit 4.
- the switching control means 50 automatically controls the shift state of the driving device 10 based on the switching map stored in advance as shown in FIG.
- the switching control is executed, the continuously variable transmission control of the power distribution mechanism 16 is executed by the hybrid control means 52, and the automatic transmission control of the automatic transmission 20 is executed by the stepped transmission control means 54.
- the automatic shift control is performed in the range from the first gear to the fifth gear as shown in FIG.
- the drive device 10 is driven by the continuously variable speed ratio width of the power distribution mechanism 16 and the first gear position through the automatic transmission 20.
- the automatic shift control is performed within a change range of the total gear ratio a T of the drive device 10 that can be shifted by the respective gears that are automatically controlled in the range of the fourth gear.
- the “D” position is also a shift position for selecting an automatic transmission mode (automatic mode), which is a control mode in which the automatic transmission control of the drive unit 10 is executed.
- Automatic gear shifting control is performed by the stepped gear shifting control means 54 within a range of a total gear ratio aT at which gears can be shifted in each gear range of the drive device 10.
- the automatic transmission control is performed within the range of the gear ratio T where the drive unit 10 can shift in the drive range in each shift range.
- the drive device 10 is switched to the continuously variable transmission state.
- the drive device 10 is driven by the automatic transmission according to the continuously variable transmission ratio width of the power distribution mechanism 16 and each speed range.
- the automatic shift control is performed in a range of a total gear ratio aT that can be shifted in each shift range of the drive device 10 obtained with each gear position that is automatically controlled in the range of 20 shiftable gear stages.
- This “M” position is the position of the drive 10 It is also a shift position that selects a manual shift travel mode (manual mode), which is a control mode in which dynamic shift control is executed.
- the power distribution mechanism 16 that distributes the output of the engine 8 to the first electric motor Ml and the transmission member 18 has the power distribution mechanism 16 operated for differential operation.
- a possible differential state for example, a continuously variable transmission state in which the gear ratio can be continuously changed to operate as an electric continuously variable transmission, and a non-differential state in which no differential action is possible, for example, a transmission having a constant gear ratio Since the switching clutch C 0 and the switching brake B 0 are provided as a differential state switching device for selectively switching to a constant speed state operable as a vehicle, the vehicle runs at low and medium speeds and at low and medium output.
- the power distribution mechanism 16 In the normal output range of the engine, the power distribution mechanism 16 is in a continuously variable transmission state to ensure the fuel efficiency of the hybrid vehicle. Maintains constant power and is exclusively mechanical power The output of the engine 8 is transmitted to the drive wheels 38 via the transmission path, so that conversion loss between power and electricity is suppressed, and fuel efficiency is improved. Also, in the high power range of the engine 8, the regions where the power distribution mechanism 16 is operated in the constant speed change state and the continuously variable speed change state are the low and medium speed running and the low and medium output running of the vehicle.
- the electric energy to be generated by the motor M1, that is, the maximum value of the electric energy transmitted by the first motor M1 can be reduced, in other words, the electric reaction force to be guaranteed by the first motor M1 is reduced.
- the first electric motor Ml, the second electric motor M2, or a vehicle drive device including the first electric motor Ml and the second electric motor M2 can be further downsized.
- the automatic transmission 20 is shifted at the same time as the power distribution mechanism 16 is brought into the constant shift state, so that, for example, the upshift shown in FIG. change in the rotational speed of the rhythmic engine 8 due to a change which the transmission of the engine rotational speed N E is generated with.
- the driver's requirement for the driving force is more important than the requirement for fuel efficiency, so that the state can be switched from the continuously variable transmission state to the stepped transmission state (constant transmission state). .
- Yotsute thereto the user can enjoy Heni spoon rhythmic engine rotational speed N E as shown in FIG. 1 0, for example.
- a single pinion type first planetary gear having three components of the power distribution mechanism 16, the first carrier CA 1, the first sun gear S 1, and the first ring gear R 1.
- the gear device 24 can be easily configured.
- the automatic transmission 20 is interposed in series between the power distribution mechanism 16 and the drive wheels 38, and the gear ratio of the power distribution mechanism 16 and the automatic transmission Since the overall speed ratio is formed based on the speed ratio of the automatic transmission 20, a wide range of driving force can be obtained by using the speed ratio of the automatic transmission 20. 6.
- the efficiency of the continuously variable transmission control, that is, the hybrid control in 6, is further enhanced.
- the power distribution mechanism 16 when the power distribution mechanism 16 is in the constant speed change state, the power distribution mechanism 16 functions as if it were a part of the automatic transmission 20 and the gear ratio is 1 There is an advantage that the fifth speed, which is a smaller overdrive gear stage, can be obtained.
- the second electric motor M 2 is connected to the transmission member 18, which is the input rotating member of the automatic transmission 20, the second electric motor M 2 is connected to the output shaft 22 of the automatic transmission 20.
- the output can be improved with a low torque, so that there is an advantage that the second motor M2 is reduced in size.
- FIG. 11 is a functional block diagram showing a main part of the control operation of the electronic control unit 40 of another example.
- the switching control unit 50 is composed of a high vehicle speed determination unit 62 and a high output traveling determination unit 6 4. This embodiment differs from the embodiment of FIG. 7 in that the electric path function determination means 66 is provided and switching control is performed based on the relationship shown in FIG.
- the high vehicle speed judging means 62 is equal to or higher than the judgment vehicle speed V 1 at which the actual vehicle speed V representing one of the vehicle states of the hybrid vehicle is a preset high speed running judgment value for judging high speed running. It is determined whether the vehicle speed has become high.
- the high-power running determination means 64 is a driving force-related value related to a driving force representing one of the vehicle states of the hybrid vehicle, for example, the output torque of the automatic transmission 20. Judgment output torque where ⁇ ⁇ ⁇ is a preset high-output driving judgment value for judging high-output driving. Power) It is determined whether or not the vehicle has run.
- the high-power running determination means 64 determines the high-power running of the vehicle based on the driving force-related parameters indicating directly or indirectly the driving force of the vehicle.
- the electric path function determination means 66 determines the failure determination condition for determining that the function of the control device for lowering the driving device 10 into the continuously variable transmission state is determined from the occurrence of electric energy in the first electric motor M1.
- the first electric motor Ml, the second electric motor M2, the inverter 58, the power storage device 60 based on the function deterioration of the equipment related to the electric path until the electric energy is converted into mechanical energy. Judgment is made based on a failure (failure) in the transmission path connecting them, or on the occurrence of a failure or functional deterioration or failure due to low temperature.
- the gear position determination means 67 functions as a stepped automatic transmission in which the drive device 10 is switched to the stepped shift state and the power distribution mechanism 16 and the automatic transmission 20 as a whole make the drive device 10 entirely.
- the vehicle speed V and the output torque are determined from the shift diagram shown in FIG. 12 stored in advance in the shift diagram storage means 56, for example.
- the gear position of the drive device 10 to be shifted is determined based on the vehicle state indicated by ⁇ .
- the gear position determined by the gear position determining means 67 is based on the speed change control of the automatic transmission 20 by the stepped speed change control means 54 irrespective of the stepped / stepless shift state of the drive device 10. This is also the basis for the speed-up gear position determination by the speed-up gear position determination means 68.
- the speed-increasing-side gear position determination means 68 determines the gear position in order to determine which of the switching clutch C 0 and the switching brake # 0 is to be engaged when the driving device 10 is set to the stepped shifting state. It is determined whether or not the gear to be shifted by the drive device 10 determined by the means 67 is a speed-up gear, for example, a fifth gear. This is because, when the entire drive unit 10 functions as a stepped automatic transmission, the switching clutch C 0 is engaged in the first to fourth speeds, or the switching brake C 0 in the fifth speed. This is to make it possible to engage.
- the switching control means 50 includes, as predetermined conditions, a high vehicle speed judgment by the high vehicle speed judgment means 62, a high output traveling judgment by the high output traveling judgment means 64, and a judgment of the electric path function failure by the electric path function judgment means 66. If at least one of In this case, it is determined that the current state is within the range, and a signal for disabling (prohibiting) the hybrid control or the stepless shift control is output to the hybrid control means 52, and the signal is transmitted to the stepped shift control means 54.
- the shift control at the time of the stepped shift set in advance for example, the shift control of the automatic transmission 20 executed according to the shift speed determined by the shift speed determining means 67 is permitted, and the speed increasing side gear speed determining means 68 And outputs a command to the hydraulic control circuit 4. 1 to engage either the switching clutch C 0 or the switching brake B 0 based on the determination of the fifth speed. Therefore, the entire drive device 10, that is, the power distribution mechanism 16 and the automatic transmission 20 function as a so-called stepped automatic transmission, and the shift speed is achieved according to the engagement table shown in FIG.
- the fifth speed is determined by the speed increasing side gear determining means 68, or the high output traveling determination is performed by the high output traveling determining means 64, the speed is increased.
- the fifth gear is determined by the side gear determination means 68, the drive unit 10 as a whole can obtain a so-called overdrive gear in which the speed is reduced to less than 1.0.
- the switching control means 50 releases the switching clutch C 0 and the switching brake B 0 so that the power distribution mechanism 16 can function as a subtransmission with a fixed transmission ratio 0, for example, a transmission ratio y 0 of 0.7. Is output to the hydraulic control circuit 42.
- the speed ratio of the driving device 10 as a whole is 1.0.
- the switching control means 50 is switched so that the power distribution mechanism 16 can function as a sub transmission with a fixed transmission ratio ⁇ 0, for example, a transmission ratio ⁇ 0 of 1.
- a command to engage the clutch C 0 and release the switching brake B 0 is output to the hydraulic control circuit 42.
- the drive device 10 is switched to the stepped shift state based on the predetermined condition by the switching control means 50, and the drive device 10 is selectively switched to one of the two shift speeds in the stepped shift state.
- the power distribution mechanism 16 functions as a sub-transmission, and the automatic transmission 20 in series with the sub-transmission functions as a stepped transmission. Function as an automatic transmission.
- the judgment vehicle speed V1 is such that the driving device 10 is in a continuously variable transmission state during high-speed traveling.
- the driving device 10 is set to be in a stepped shifting state in the high-speed traveling so that the fuel consumption is prevented from deteriorating when the vehicle is driven.
- the determination torque T 1 is used to reduce the size of the first electric motor M 1 without making the reaction torque of the first electric motor M 1 correspond to the high output range of the engine during high-power running of the vehicle. This is set according to the characteristics of the first electric motor M 1 that can be arranged with the maximum output of the electric energy from M 1 reduced.
- the switching control means 50 sets the switching clutch C0 and the switching brake B so that the power distribution mechanism 16 can be continuously variable with the continuously variable transmission state.
- a command to release 0 is output to the hydraulic control circuit 42.
- a signal for permitting hybrid control is output to the hybrid control means 52, and a signal for fixing the gear to the preset stepless speed is output to the stepped shift control means 54.
- the power distribution mechanism 16 that has been switched to the continuously variable transmission state based on the predetermined condition by the switching control means 50 functions as a continuously variable transmission, and the automatic transmission 20 in series therewith has the continuously variable transmission. Functioning as an automatic transmission, it is possible to obtain an appropriate amount of driving force, and at the same time, to use the automatic transmission 20 for the first, second, third, and fourth gears.
- the rotation speed input to the transmission 20, that is, the rotation speed of the transmission member 18 is steplessly changed, so that a stepless speed ratio width can be obtained at each gear. Therefore, the gear ratio between the respective gears is continuously variable, so that the drive device 10 as a whole is in a continuously variable gear state, and the toe gear ratio aT can be obtained continuously.
- FIG. 12 is a shift diagram (relationship) stored in advance in the shift diagram storage means 56, which is the basis for determining the shift of the automatic transmission 20, and shows the axis indicating the vehicle speed V and the driving force-related values.
- FIG. 3 is an example of a shift diagram (shift map) formed by two-dimensional coordinates orthogonal to an axis indicating an output torque T 0UT .
- the solid line in Fig. 1 is the upshift line, and the dashed line is the downshift line. It is.
- the broken lines in FIG. 12 indicate the determination vehicle speed V 1 and the determination output torque T 1 that determine predetermined conditions for determining between the stepped control region and the stepless control region by the switching control means 50.
- a high vehicle speed determination line and a high output travel determination line which are a series of a determination vehicle speed V1 as a determination value and a determination output torque T1 as a high output travel determination value, are shown. Further, as indicated by a two-dot chain line with respect to the broken line in FIG. 12, hysteresis is provided in the determination between the stepped control region and the stepless control region. This figure 12 shows the judgment vehicle speed V
- the vehicle speed V and the output torque ⁇ ⁇ ⁇ are set as parameters, and the switching control means 50 determines whether the vehicle is in the stepped control region or the stepless control region. It is also a switching diagram (switching map, relation) stored in advance. Therefore, the predetermined conditions of the vehicle are the actual vehicle speed V and the output torque T from the switching diagram. It may be determined based on UT and. That is, FIG. 12 can be said to be a diagram showing the relationship between the shift map and the predetermined condition. Note that the shift diagram including the switching diagram may be stored in advance in the shift diagram storage means 56 as a shift map.
- this switching diagram may include at least one of the determination vehicle speed V1 and the determination output torque T1, or the vehicle speed V and the output torque ⁇ .
- a switching line stored in advance using any one of ⁇ as a parameter may be used.
- the shift diagram and the switching diagram above show the actual vehicle speed V and the judgment vehicle speed V
- It may be stored as a determination formula comparing the output torque T 0 UT with the determination output torque ⁇ 1, or the like.
- the step-variable control area and free of the switching boundary switching map shown in FIG. 1 2 is set by the output torque T E and the engine rotational speed NE of the engine 8 as shown in FIG. 8
- the output torque ⁇ ⁇ is a predetermined judgment output torque ⁇ A high torque region of 1 or more, or a vehicle speed V is a predetermined judgment vehicle speed V of 1 or more a high vehicle speed region.
- FIG. 13 is a flowchart showing a main part of the control operation of the electronic control unit 40, that is, a switching control operation of the drive unit 10 in the embodiment of FIG. 11, and for example, a very short time of about several msec to several tens msec. It can be executed repeatedly with a short cycle time. .
- S1 it is determined whether or not the actual vehicle speed V of the hybrid vehicle has reached a high vehicle speed equal to or higher than a predetermined determination vehicle speed V1. If the determination in S1 is denied, in S2 corresponding to the high output traveling determination means 64, the actual driving torque of the hybrid vehicle or the output torque ⁇ ⁇ ⁇ ⁇ ⁇ of the automatic transmission 20 is set in advance. It is determined whether or not a high torque (high driving force) that is equal to or greater than the determined determination torque T1 is obtained. If the determination in S2 is denied, in S3 corresponding to the electric path function determination means 66, the electric energy is converted into mechanical energy from the generation of electric energy in the first motor M1.
- the rotation speed input to the automatic transmission 20 that is, the rotation speed of the transmission member 18 is changed.
- the gear ratio is steplessly changed so that a stepless speed ratio width is obtained for each gear position. Therefore, the gear ratio between the gears is continuously variable and can be continuously changed. As a whole, a continuously variable transmission state in which the toe transmission ratio 7 T is stepless can be obtained.
- S5 corresponding to the gear position determination means 67
- S6 the speed position to be shifted by the drive device 10 determined in S5 is the speed-increasing gear position, for example, the fifth speed. It is determined whether or not.
- the power transmission mechanism 16 has a fixed speed ratio y0, for example, the subtransmission having a speed ratio a0 of 0.7.
- a command to release the switching clutch C 0 and to apply the switching brake B 0 is output to the hydraulic control circuit 42 so that the hydraulic pressure control circuit 42 can function.
- a signal is output to the hybrid control means 52 to prohibit or prohibit the hybrid control or the continuously variable shift control, and the stepped shift control means 54 outputs the signal to the stepped shift control means 54 in accordance with the speed determined at S5.
- a signal is output that permits automatic transmission 20 to automatically shift to the fourth gear, so that drive 10 as a whole is in the fifth gear.
- the power distribution mechanism 16 has a fixed speed ratio 0, for example, a speed change ratio 0
- a command to engage the switching clutch C 0 and release the switching brake B 0 so as to function as a transmission is output to the hydraulic control circuit 42.
- a signal is output to the hybrid control means 52 to prohibit or prohibit the hybrid control or the continuously variable transmission control, and the stepped transmission control means 54 determines in step S5.
- a signal is output that allows the automatic transmission 20 to be automatically shifted in the range from the first gear to the fourth gear according to the shift speed. Therefore, in S7 and S8, the power distribution mechanism 16 functions as the auxiliary transmission, and the automatic transmission 20 in series with the auxiliary transmission functions as the stepped transmission.
- the stage shift state is established, and the device functions as a so-called stepped automatic transmission.
- the output of the engine 8 is reduced to the 1
- the power distribution mechanism 16 for distributing to the motor Ml and the transmission member 18 A switching clutch C0 and a switching brake # 0 as a differential state switching device for selectively switching between a continuously variable transmission state operable as a transmission and a stepped transmission state operable as a stepped transmission.
- the switching control means 50 automatically switches the drive 10 between the continuously variable transmission state and the continuously variable transmission state based on predetermined conditions, thereby improving the fuel efficiency of the electric continuously variable transmission.
- a drive device is obtained that has both advantages of the effect and the high transmission efficiency of the stepped transmission that mechanically transmits power. Ie
- the normal output range of the engine for example, the vehicle speed V shown in FIG.
- the driving device 10 is set to the stepless speed change state, and the fuel economy performance of the hybrid vehicle in normal city driving, that is, in low-medium speed driving and low-medium power driving of the vehicle.
- high-speed driving is performed, for example, in the stepped control region in which the vehicle speed V shown in Fig. 12 is equal to or higher than the determination vehicle speed V1, the drive device 10 is in a stepped shift state, and the engine is exclusively driven by a mechanical power transmission path.
- the driving device 10 is in a stepped shift state and only mechanical power transmission is performed.
- the area where the output of the engine 8 is transmitted to the drive wheels 38 on the route to operate the vehicle in a continuously variable transmission state is the low-medium-speed running and low-medium-power running of the vehicle. Therefore, the maximum value of the electrical energy, that is, the electrical energy transmitted by the first electric motor M1, can be reduced, and the first electric motor M1, the second electric motor M2, or the vehicle rain drive device including the same can be further downsized.
- the drive control unit 10 is switched from the continuously variable transmission state to the stepped transmission state by the switching control means 50 based on the predetermined condition of the vehicle.
- the brake B 0 or the clutch C 0 functioning as a differential state switching device is controlled by the switching control means 50 in accordance with the predetermined condition of the vehicle, so that any one of a plurality of stages in the step-variable shifting state is achieved. Because the switching destination is changed, It is possible to obtain an appropriate gear position in accordance with a vehicle traveling situation such as high-power traveling.
- the predetermined condition of the vehicle is determined based on the determined vehicle speed V1, which is a predetermined high-speed running determination value, and the switching control means 50 determines that the actual vehicle speed V is When the vehicle speed V1 exceeds the determined vehicle speed V1, the speed change mechanism 10 is set to a stepped shift state, so that, for example, high-speed traveling in which the actual vehicle speed V exceeds the determined vehicle speed V1 set on the higher vehicle speed side.
- the output of the engine 8 is transmitted to the drive wheels 38 only through a mechanical power transmission path, and the power and electric energy generated when the transmission mechanism 10 is operated as an electric continuously variable transmission. Since the conversion loss during is suppressed, fuel efficiency is improved.
- the predetermined condition of the vehicle is determined based on the judgment output torque T1, which is a preset high output traveling judgment value, and the switching control means 50 determines the actual output.
- the transmission mechanism 10 is set to the stepped transmission state, so that, for example, the determination output torque T1 in which the actual output torque Tout is set to the high output side is reduced.
- the high-power running exceeds the limit, the output of the engine 8 is transmitted to the drive wheels 38 through the mechanical power transmission path, and the transmission mechanism 10 is operated only as an electric continuously variable transmission.
- the maximum value of the electric energy to be generated by the first motor M1 can be reduced, that is, the output capacity to be guaranteed by the first motor M1 can be reduced, and the first motor M1 can be reduced.
- M 1 or the first electric motor M or a car containing it The drive is even more compact.
- the predetermined conditions of the vehicle include the vehicle speed V and the output torque ⁇ ⁇ , including the determination vehicle speed V 1 and the determination output torque T 1.
- ⁇ is determined based on the actual vehicle speed V and the output torque ⁇ from a pre-stored switching diagram in which the parameter ⁇ ⁇ is set as a parameter. Is easily determined.
- the predetermined condition of the vehicle is a failure determination condition for determining a decrease in the function of the control device for bringing the drive device 10 into the continuously variable transmission state.
- the drive unit 10 is set to the stepped shift state. Therefore, even if the drive unit 10 is not set to the stepless shift state, the drive unit 10 is set to the stepped shift state. As a result, the vehicle travels in a stepped manner but substantially the same as in the stepless travel.
- the switching control means 50 sets the second element (the first sun gear S 1) to the non-rotation state when the vehicle speed V at the time exceeds the determination vehicle speed V 1.
- the switching brake B0 which is a hydraulic friction engagement device as a differential state switching device, is engaged, for example, when the actual vehicle speed V exceeds the determination vehicle speed V1 set on the high vehicle speed side.
- the output between the power and the electricity generated when the output of the engine 8 is transmitted to the drive wheels 38 through the mechanical power transmission path and the transmission mechanism 10 is operated as an electric continuously variable transmission. Since the conversion loss is suppressed, fuel efficiency is improved.
- the switching control means 50 connects the first sun gear S1 and the first carrier CA1 to each other when the actual output torque Tout exceeds the determination output torque T1.
- the switching clutch C 0, which is a hydraulic friction engagement device as the differential state switching device, is engaged, for example, the judgment output torque T 1 in which the actual output torque Tout is set to the high output side is When it exceeds, the output of the engine 8 is transmitted to the drive wheels 38 exclusively through the mechanical power transmission path, and the first electric motor M 1 when the transmission mechanism 10 operates as an electric continuously variable transmission is used. Since the maximum value of the transmitted electric energy can be reduced, the first motor M1, the second motor M2, or the driving device of the vehicle including the first motor M1 and the second motor M2 can be further downsized.
- the power distribution mechanism 16 is a single pinion type first planetary gear device 24 having the first carrier CA 1, the first sun gear S 1, and the first ring gear R 1 as three elements. Therefore, there is an advantage that the power distribution mechanism 16 can be configured simply and with a small axial dimension. Further, the power distribution mechanism 16 includes a hydraulic friction engagement device, that is, a switching clutch C 0 and a first sun gear S 1 for interconnecting the first sun gear S 1 and the first carrier CA 1 with a transmission case. Since the switching brake B 0 connected to 11 is provided, the switching control means 50 easily controls the continuously variable transmission state and the stepped transmission state of the drive device 10.
- the automatic transmission unit 20 is interposed between the power distribution mechanism 16 and the drive wheels 38 in series, and the gear ratio of the power distribution mechanism 16, that is, the switching-type variable Of the transmission mechanism 10 based on the transmission ratio of the transmission section 11 and the transmission ratio of the automatic transmission section 20. Since the combined transmission ratio is formed, a wide range of driving force can be obtained by using the transmission ratio of the automatic transmission unit 20. Therefore, the continuously variable transmission control, that is, the hybrid control, in the switchable transmission unit 11 is performed. Efficiency is further enhanced.
- the switchable transmission section 11 when the transmission mechanism 10 is in the stepped transmission state, the switchable transmission section 11 functions as if it were a part of the automatic transmission section 20 and the transmission ratio is 1 There is an advantage that the fifth speed, which is a smaller overdrive gear, can be obtained.
- the second electric motor M 2 is connected to the transmission member 18, which is the input rotating member of the automatic transmission unit 20, the output shaft 22 of the automatic transmission unit 20 is connected to the second electric motor M 2.
- the I motor M can be made smaller because the output can be improved with a low torque.
- FIG. 14 is a skeleton diagram illustrating the configuration of a driving device 70 according to another embodiment of the present invention
- FIG. 15 is a diagram illustrating a combination of a shift speed of the driving device 70 and engagement of a hydraulic friction engagement device.
- FIG. 16 is an alignment chart for explaining the speed change operation of the driving device 70.
- the driving device 70 includes a single pinion type first planetary gear device 24 having a predetermined gear ratio 1 of, for example, about “0.418”, a switching clutch C 0, and a switching brake similarly to the above-described embodiment.
- the automatic transmission 72 is, for example, a single pinion type second planetary gear train 26 having a predetermined gear ratio P 2 of about 0.532, for example, a predetermined gear ratio of about 0.418.
- a single planet type planetary gear set 28 having a gear ratio p 3.
- the second sun gear S of the second planetary gear train 26 and the third sun gear S 3 of the third planetary gear train 28 are integrally connected and selectively connected to the transmission member 18 via the second clutch C 2.
- the second carrier CA 2 of the second planetary gear train 26 and the third ring gear R 3 of the third planetary gear train 28 are selectively connected to the case 12 via the first brake B 1 and connected to the case 12.
- Output shaft 2 2, the second ring gear R2 is selectively connected to the transmission member 18 via the first clutch C1, and the third carrier CA3 is selectively connected to the case 1 via the second brake B2.
- the switching clutch C 0, the first clutch C 1, the second clutch C 2, the switching brake By selectively engaging and operating B 0, the first brake B 1, and the second brake B 2, the first gear (first gear) to the fourth gear (fourth gear) either or reverse gear (reverse gear) or neutral is is established to the selected ⁇ , geometric series varying speed ratio ⁇ (input shaft speed N iN / output shaft speed ⁇ . ⁇ ) Is obtained for each gear.
- the power distribution mechanism 16 is provided with the switching clutch C0 and the switching brake # 0, and the power is transmitted by engaging either the switching clutch C0 or the switching brake # 0.
- the distribution mechanism 16 constitutes a continuously variable transmission state in which it can operate as a continuously variable transmission as described above, as well as a constant gear state in which it can be operated as a single-stage or multi-stage transmission having one or more kinds of gear ratios. It is possible. Therefore, in the drive unit 70, the stepped transmission is performed between the power distribution mechanism 16 and the automatic transmission 72, which are brought into the constant speed change state by engaging one of the switching clutch C0 and the switching brake # 0.
- the power transmission mechanism 16 and the automatic transmission 72 which are in a continuously variable transmission state by disengaging any of the switching clutch C0 and the switching brake # 0, form a continuously variable transmission. Be composed.
- the speed change is performed by engagement of the switching clutch C0, the first clutch C1, and the second brake # 2.
- a second gear stage in which the gear ratio a2 is smaller than the first gear stage, for example, about “1.531” is established, and the switching clutch C 0, the first clutch C 1, and the second clutch
- the engagement of C2 establishes a third gear stage in which the gear ratio a3 is smaller than that of the first gear stage, for example, about "1.000".
- the engagement of the two-clutch C2 and the switching brake B0 establishes the fourth gear stage in which the gear ratio a4 is smaller than that of the third gear stage, for example, about 0.75. It is. Further, due to the engagement of the second clutch C 2 and the second brake B 2, the gear ratio 7 R is a value between the first gear and the second gear, for example, about “2.393”. The reverse gear is established. When the neutral “N” state is set, for example, only the switching clutch C0 is engaged.
- both the switching clutch C 0 and the switching brake B 0 in the engagement table shown in FIG. 15 are released.
- the power distribution mechanism 16 functions as a continuously variable transmission
- the automatic transmission 72 in series functions as a stepped transmission, so that the first and second speeds of the automatic transmission 72 are changed.
- the rotation speed input to the automatic transmission 72 that is, the rotation speed of the transmission member 18 is continuously changed for each of the third gears, so that each gear has a continuously variable transmission ratio width. Is obtained.
- the gear ratio ⁇ T of the drive device 70 as a whole can be obtained in a stepless manner as a gear ratio capable of continuously changing continuously between the respective gears. '
- FIG. 16 shows a drive unit 70 including a power distribution mechanism 16 functioning as a continuously variable transmission unit or a first transmission unit and an automatic transmission 72 functioning as a stepped transmission unit or a first transmission unit.
- FIG. 3 is a collinear diagram that can represent, on a straight line, the relative relationship between the rotational speeds of the rotating elements that are differently connected at each gear position.
- the four vertical lines Y 4, Y 5, Y 6, and Y 7 of the automatic transmission 72 in FIG. 16 correspond to the fourth rotating element (the fourth element) RE 4 in order from the left and mutually.
- the second sun gear S 2 and the third sun gear S 3 are connected to the third carrier CA 3 corresponding to the fifth rotating element (fifth element) RE 5 and the sixth rotating element (six element) RE 6.
- the corresponding and mutually connected second carrier CA 2 and third ring gear R 3 represent a second ring gear R 2 corresponding to the seventh rotating element (seventh element) RE 7.
- the fourth rotating element RE4 is selectively connected to the transmission member 18 via the second clutch C2 and selectively to the case 12 via the first brake B1.
- the fifth rotating element RE 5 is selectively connected to the case 12 via the second brake B
- the sixth rotating element RE 6 is connected to the output shaft 22 of the automatic transmission 72.
- the seven-rotation element RE7 is selectively connected to the transmission member 18 via the first clutch C1.
- the rotation speed of the seventh rotation element RE7 (R2) is indicated.
- the rotation speed of the first-speed output shaft 22 is shown at the intersection with the vertical line Y6 indicating the rotation speed of the sixth rotation element RE6 (CA2, R3) connected to the output shaft 22.
- the rotation speed of the second speed output shaft 22 is indicated at the intersection with Y6, and the horizontal straight line L3 and the output shaft 2 determined by the engagement of the first clutch C1 and the second clutch C2.
- the rotation speed of the third-speed output shaft 12 is shown at the intersection with the vertical line Y6 indicating the rotation speed of the sixth rotation element RE6 connected to 2.
- the result shift clutch C 0 is that has been engaged, the power input from the power distribution mechanism 1 6 to the seventh rotary element RE 7 at the same speed as the engine speed N E Is done.
- the drive device 70 of this embodiment also includes a power distribution mechanism 16 functioning as a continuously variable transmission unit or a first transmission unit, and an automatic transmission 72 functioning as a stepped transmission unit or a second transmission unit. Therefore, the same effect as in the above-described embodiment can be obtained.
- Example 4
- FIG. 17 is a skeleton diagram for explaining the configuration of a drive unit 80 in another embodiment of the present invention.
- FIG. 18 is a shift stage and a hydraulic friction engagement device for a stepped shift operation of the drive unit 80.
- FIG. 19 is a nomographic chart illustrating the stepped speed change operation of the drive device 80, and
- FIG. 20 is a stepless speed change operation of the drive device 80.
- FIG. 21 is a nomographic chart illustrating a stepless speed change operation of the drive unit 80 of the engagement table showing the relationship between the speed change stage and the engagement of the hydraulic friction engagement device.
- the driving device 80 includes a power distribution mechanism 84 having a double pinion type first planetary gear device 82, a switching clutch C0 and a switching brake B0, and a power distribution mechanism 84 and an output shaft 22. And a seven-speed automatic transmission 86 connected in series via a transmission member 18.
- the double pinion type first planetary gear set 82 of the power distribution mechanism 84 of the present embodiment includes a first sun gear S 1, a first planetary gear P 1 and a second planetary gear P 2 meshing with each other, and A first carrier CA that supports the planetary gear P1 and the second planetary gear P2 so that they can rotate and revolve.
- One ring gear R 1 is provided as a rotating element, and has a predetermined gear ratio 01 of, for example, “0.425”.
- the first carrier CA1 is connected to the input shaft 14, that is, the engine 8, and the first sun gear S1 is connected to the first electric motor M1.
- the first ring gear R 1 is connected to the transmission member 18.
- the switching brake B 0 is provided between the first sun gear S 1 and the transmission case 12, and the switching clutch C 0 is provided between the first sun gear S 1 and the first carrier CA 1, When the switching clutch C 0 and the switching brake B 0 are released, a continuously variable transmission state in which the speed ratio a 0 is continuously changed is established, and the switching clutch C 0 is engaged.
- the gear ratio 0 is larger than "1" when the gearshift 0 is set to the constant speed change state in which it functions as a transmission fixed to "1" and the switching brake B0 is engaged instead of the switching clutch C0.
- a constant speed change state that functions as a reduction transmission fixed to about 1.7 is set.
- the switching clutch C 0 and the switching brake B 0 set the power distribution mechanism 84 to a continuously variable transmission state in which the transmission ratio can be operated as a continuously variable transmission capable of continuously changing. It functions as a differential state switching device that selectively switches to a constant speed state that can operate as a single-stage or multiple-stage transmission with one or more types of speed ratios.
- the automatic transmission 86 has a single planetary type second planetary gear set 88 having a predetermined gear ratio p 2 of, for example, about 0.50 50 and a predetermined gear of, for example, about 0.46 2.
- a double pinion type third planetary gear set 90 a pair of mutually engaging pinions P1 and P2 rotatably supported by a third carrier CA3 is provided, and an outer peripheral pinion P2 is provided.
- the third ring gear R 3 and the third carrier CA 3, which engage with the pinion of the second planetary gear device 88, are formed of the same members as the pinion of the second planetary gear device 88.
- the third sun gear S3 of the third planetary gear set 90 is selectively connected to the transmission member 18 via the first clutch C1, and the second sun gear S2 of the second planetary gear set 88 is the first brake.
- the first carrier CA 2 and the third carrier CA 3 are selectively connected to the transmission case 18 via the third clutch C 3 and selectively connected to the transmission member 18 via the third clutch C 3. It is selectively connected to the transmission case 1 via the brake B2 and selectively connected to the input shaft 14 via the second clutch C2, and the second ring gear R2 and the third ring gear R3 output
- the shaft 22 is integrally connected.
- the switching clutch C 0, the first clutch C 1, the second clutch C 2, and the third clutch C 3, the switching brake B 0, the first brake B 1, and the second brake B 2 are selectively engaged to operate the first gear (first gear) to the first gear.
- Either one of the seventh gear (seventh gear), the reverse gear (reverse gear), or two-neutral is selectively established, and a gear ratio a that changes approximately isometrically is obtained for each gear. It is becoming possible to be.
- the power distribution mechanism 84 is provided with a switching clutch C0 and a switching brake B0, and when either the switching clutch C0 or the switching brake B0 is engaged, the power distribution mechanism 84 is engaged.
- the power distribution mechanism 84 has a continuously variable transmission state in which it can operate as a continuously variable transmission as described above, and a constant transmission state in which it can operate as a single-stage or multiple-stage transmission with one or more types of gear ratios. It is possible to do. Therefore, in the driving device 80, the power transmission mechanism 84 and the automatic transmission 86, which are brought into a constant speed change state by engaging one of the switching clutch CO and the switching brake B0, are operated.
- a continuously variable transmission is constituted by the power distribution mechanism 84 and the automatic transmission 86, which are brought into a continuously variable transmission state by disengaging any of the switching clutch C0 and the switching brake B0. Is done.
- the speed is changed by engagement of the first clutch C1, the second brake B2, and the switching brake B0.
- the gear ratio a3 is smaller than the second gear stage, for example, about "1.739”
- the gear ratio a 4 is smaller than the third gear, for example, “1.24 4”.
- the gear ratio a6 is smaller than that of the fifth gear, for example, about "0.811".
- the gear ratio a 7 is smaller than that of the sixth gear, for example, “0.64”. 5th is about The seventh gear is established. Further, by the engagement of the third clutch C3, the switching brake B0, and the second brake B2, the gear ratio aR is set to a value between the first gear and the second gear, for example, "3. A reverse gear of about 1 6 2 "is established.
- the driving device 80 functions as a continuously variable transmission, for example, as shown in FIG. 20, the switching clutch C 0 and the switching brake B 0 in the engagement table are constantly released.
- the power distribution mechanism 84 functions as a continuously variable transmission
- the series automatic transmission 86 functions as a forward three-speed stepped transmission.
- the rotation speed input to the automatic transmission 86 that is, the rotation speed of the transmission member 18 is steplessly changed for each of the first and third speeds, so that each speed is infinitely variable.
- the width is obtained. 'Therefore, a total transmission ratio aT of the entire driving device 80 can be obtained in a continuously variable state, with a transmission ratio continuously variable between the respective gear stages.
- FIG. 19 is attained by engaging one of the switching clutch C 0 and the switching brake B 0 in the driving device 80 including the power distribution mechanism 84 and the automatic transmission 86.
- FIG. 3 is a collinear diagram showing, on a straight line, the relative relationship between the rotational speeds of the rotary elements having different connection states for each gear stage during the stepped gear shift.
- the rotation speed of the first sun gear S1 is reduced to zero and since the rotation speed of the first Kiyarya CA 1 is the engine rotational speed N E, the intersection of the horizontal axis X 1 and the vertical axis Y 1, the horizontal axis X 2 and the vertical axis Y 3 showing the engine rotational speed N E
- the intersection of the straight line L 0 connecting the intersection of and the vertical axis Y 2 indicates the relative rotation speed of the first ring gear R 1, that is, the relative rotation speed of the transmission member 18.
- the relative Rotation speed of the power transmitting member 1 8 at this time is lower than the horizontal axis X 2 indicating the engine rotational speed N E, the power distribution mechanism 8 4 are machine affirmative as reducer.
- Vertical lines Y4 to Y7 are separated by horizontal lines X3. Is shown.
- the switching clutch C0 is engaged in place of the switching brake B0 in the fifth speed, the first sun gear S1, the first ring gear R1, and the first ring gear R1 of the first planetary gear train 82 are engaged. Since the carrier CA 1 rotates integrally at the same rotation speed as the engine rotation speed NE, the horizontal axis.
- the intersection of X 2 and the vertical axis Y 2 is the relative rotation speed of the first ring gear R 1, that is, the relative rotation of the transmission member 18. Indicates the rotation speed.
- the relative times speed of the power transmitting member 1 8 at this time is the same as Enjin rotational speed N E, the power distributing mechanism 84 the speed ratio is functioning as a fixed transmission. From the vertical line Y4 to the vertical line Y7, the rotation speed is indicated by a horizontal line X2.
- an oblique straight line L2 determined by engagement of the first clutch C1, the switching brake B0, and the first brake B1 and the sixth rotation element RE6 connected to the output shaft 22 are provided.
- the rotation speed of the second speed output shaft 22 is shown at the intersection with the vertical line Y6 indicating the rotation speed, and the first clutch C1, the third clutch C3, and the switching brake B0 are engaged.
- the intersection of the horizontal straight line L 3 determined by the above and the vertical line Y 6 indicating the rotation speed of the sixth rotating element RE 6 connected to the output shaft 22 indicates the rotation speed of the third speed output shaft 22. .
- 5th speed output shaft 2 2 rotation at intersection with vertical line Y 6 Speed is shown.
- the rotation speed of the sixth rotation element RE6 connected to the output shaft 2 and 6 is shown.
- the rotation speed of the output shaft 22 of the sixth speed is indicated.
- the rotation speed of the seventh output shaft 22 is shown at the intersection with the vertical line Y 6 indicating.
- the rotation speed of the sixth rotating element RE 6 connected to the output shaft 22 and the oblique straight line LR determined by the engagement of the third clutch C 3, the switching brake B 0, and the second brake B 2 The rotation speed of the output shaft 22 of the reverse R is shown at the intersection with the indicated vertical line Y6. Note that, in the seventh speed shown in FIG. 18 or FIG. 19, the switching brake B0 does not necessarily need to be engaged. Similarly, in the fifth speed, the first clutch C1 or the third clutch C3 may be further engaged. ⁇
- FIG. 20 is an engagement table showing the shift control operation of the automatic transmission 86 when the power distribution mechanism 84 is set to the continuously variable transmission state in the drive device 80.
- FIG. 21 shows the operation at that time.
- the rotation speed thereof can be controlled over a wide range by controlling the reaction force of the first electric motor M 1. Therefore, since the straight line 0 is rotated in the range indicated by the arrow with the intersection of the horizontal line X2 and the vertical line Y3 as the center of rotation, the line 0 is indicated by the intersection of the straight line L0 and the vertical line Y2. 1 rotation speed of the ring gear R 1 i.e.
- the rotation speed of the second-speed output shaft 22 is shown at the intersection with the vertical line Y 6 indicating the rotation speed of the sixth rotation element RE 6 connected to the oblique straight line L 2 and the output shaft 22.
- Intersection between a horizontal straight line L3 determined by engagement of the clutch C1 and the third clutch C3 and a vertical line Y6 indicating the rotation speed of the sixth rotation element RE6 connected to the output shaft 22 Indicates the rotation speed of the third-speed output shaft 22.
- the power distribution mechanism 84 functions as a continuously variable transmission
- the automatic transmission 86 in series functions as a stepped transmission.
- the rotation speed input to the automatic transmission 86 that is, the rotation speed of the transmission member 18 is steplessly changed for each of the first and third speeds, so that each speed is continuously changed.
- the specific width is obtained. Therefore, the gear ratio between the gears is continuously variable continuously, so that the toe gear ratio ⁇ T of the drive device 80 as a whole can be obtained continuously.
- the drive device 80 of this embodiment also includes a power distribution mechanism 16 functioning as a continuously variable transmission unit or a first transmission unit, and an automatic transmission 72 functioning as a stepped transmission unit or a second transmission unit. Therefore, the same effect as in the above-described embodiment can be obtained.
- a power distribution mechanism 16 functioning as a continuously variable transmission unit or a first transmission unit
- an automatic transmission 72 functioning as a stepped transmission unit or a second transmission unit. Therefore, the same effect as in the above-described embodiment can be obtained.
- FIG. 22 is a skeleton diagram illustrating the configuration of a drive device 92 according to another embodiment of the present invention
- FIG. 23 is a shift stage and a hydraulic friction engagement device for a stepped shift operation of the drive device 92.
- FIG. 24 is a collinear diagram illustrating the stepped speed change operation of the drive device 92
- FIG. 15 is a stepless speed change operation of the drive device 92.
- FIG. 26 is an alignment chart illustrating a stepless speed change operation of the driving device 92.
- the driving device 92 is a single-pione type first planetary gear device 24 having a predetermined gear ratio 01 of, for example, about 0.590, and a switching brake B similar to FIGS. 1 and 14. 0, and an eight-speed forward automatic transmission 96 connected in series between the power distribution mechanism 94 and the output shaft 2 via a transmission member 18.
- a switching mechanism for selectively connecting the first sun gear S 1 of the first planetary gear device 24 to the transmission case 12 is provided.
- key B0 is provided, switching clutch C0 for selectively connecting first sun gear S1 and first carrier CA1 is not provided.
- the switching brake B0 when the switching brake B0 is engaged, the first ring gear R1 is rotated at an increased speed with respect to the first carrier CA1, so that the gear ratio a0 is smaller than "1".
- a constant speed change state that functions as a speed increasing transmission fixed at about 0.63 is set.
- the switching brake B 0 is used to control the power distribution mechanism 84 as a continuously variable transmission state in which the transmission ratio a 0 can be operated as a continuously variable transmission capable of continuously changing. It functions as a differential state switching device that selectively switches to a constant speed change state in which a 0 can be operated as a single-stage transmission smaller than 1.
- the automatic transmission 96 has, for example, a double pinion type second planetary gear train 98 having a predetermined gear ratio p 2 of about “0.435” and a predetermined gear ratio of about “0.435”.
- a single pinion type third planetary gear set 100 having a gear ratio p3 is provided.
- the double pinion type second planetary gear set 98 includes a pair of mutually engaging pinions P1 and P2 rotatably supported by the second carrier CA2, and the outer peripheral pinion P 2 is composed of the same components as the pinion of the third planetary gear set 100, and the second ring gear R2 and the second carrier CA2 that mesh with the pinion P2 are the third planetary gear set.
- the third ring gear R 3 and the third carrier CA 3 of 100 are respectively used in common.
- the second sun gear S 2 of the second planetary gear set 98 is selectively connected to the transmission member 18 via the first clutch C 1, and the transmission case 1 2 via the first brake B 1.
- the third sun gear S 3 of the third planetary gear set 100 is selectively connected to the transmission member 18 via the second clutch C 2 and the fourth sun gear S 4 is selectively connected to the transmission member 18.
- the second carrier CA 2 and the third carrier CA 3 are selectively connected to the input shaft 14 via the third clutch C 3 and the second brake B
- the second ring gear R 2 and the third ring gear R 3 are integrally connected to the transmission case 12 via the transmission shaft 12.
- the first clutch C1, the second clutch C2, the third clutch C3, and the fourth When the switch C4, the switching brake B0, the first brake B1, and the second brake B2 are selectively engaged, the first gear (first gear) to the eighth gear are operated. Gear (the eighth gear), the reverse gear (the reverse gear) or the neutral is selectively established so that a gear ratio ⁇ ⁇ that changes approximately equidistantly is obtained for each gear. Has become.
- the power distribution mechanism 94 is provided with the switching brake B 0, and the power distribution mechanism 94 can operate as the above-described continuously variable transmission when the switching brake B 0 is engaged.
- the step-variable transmission is constituted by the power distribution mechanism 94 and the automatic transmission 96 which are brought into the constant speed change state by engaging and operating the switching brake B0, and the switching brake B0
- the automatic transmission 96 is composed of the power distribution mechanism 94 and the automatic transmission 96 that are brought into a continuously variable transmission state by not engaging the clutch. For example, when the driving device 92 functions as a stepped transmission, as shown in FIG. 23, the speed is changed by engagement of the fourth clutch C4, the switching brake B0, and the first brake B1.
- the engagement of B1 establishes the third gear stage in which the gear ratio a3 is smaller than the second gear stage, for example, about "1.769", and the second clutch C2, the third clutch stage Due to the engagement of the clutch C3 and the switching brake B0, the gear ratio a4 is smaller than the third gear, for example, "1.34 5".
- the fourth gear is established, and the gear ratio a5 is smaller than the fourth gear due to the engagement of the third clutch C3, the fourth clutch C4, and the switching brake B0.
- a fifth speed gear ratio of “1 .0000” is established, and the first clutch C l, the third clutch C 3, and the switching brake B 0 are engaged to change the gear ratio a6 to the fifth speed.
- a sixth speed which is a value smaller than the gear speed, for example, about "0.796" is established, and the engagement of the first clutch C1, the fourth clutch C4, and the switching brake B0 causes Gear ratio a7 is the sixth gear
- a seventh speed which is smaller than the value of, for example, about 0.703, is established, and the first clutch C1, the second clutch C2, and the disengagement brake B0 are engaged to change the gear ratio.
- the eighth gear is established in which 8 is smaller than the seventh gear, for example, about “0.629”. Further, by the engagement of the fourth clutch C4, the switching brake B0, and the second brake B2, the gear ratio aR is set to a value between the first gear and the second gear, for example, "2".
- a reverse gear of about 300 ” is established.
- the driving device 92 functions as a continuously variable transmission, for example, as shown in FIG. 25, the switching brake # 0 in the engagement table is always released, so that the power distribution mechanism 94 Functions as a continuously variable transmission, and the automatic transmission 96 in series functions as a stepped transmission with two forward speeds, thereby increasing the speed of the second and eighth gears of the automatic transmission 96.
- the rotation speed input to the automatic transmission 96 that is, the rotation speed of the transmission member 18 is steplessly changed, so that a stepless speed ratio width is obtained at each gear. Therefore, the gear ratio between the gears can be continuously and continuously changed, so that the toe gear ratio r ⁇ of the drive device 92 as a whole can be obtained continuously.
- FIG. 24 is a diagram showing a drive unit 9 composed of a power distribution mechanism 94 and an automatic transmission 96, for each gear stage at the time of stepped shifting achieved by engagement of the switching brake # 0.
- Fig. 7 shows a collinear chart that represents, on a straight line, the relative relationship between the rotational speeds of the rotating elements having different connection states.
- FIG. 24 in the power distribution mechanism 94, as in FIGS. 3 and 16, the vertical direction indicating the rotation of the first sun gear S1 (the second rotating element R ⁇ 2) of the first planetary gear device 24 is shown.
- the rotation speed orchid is indicated.
- the step-variable switching brake beta 0 during the rotational speed of the first sun gear S 1 is allowed engagement in each gear is made zero, and the rotational speed of the first Kiyarya CA 1 is the engine rotational speed New E
- the intersection of the line L 0 connecting the intersection of the horizontal axis X 1 with the vertical axis ⁇ 1 and the intersection of the horizontal axis X 2 indicating the engine speed ⁇ ⁇ and the vertical axis ⁇ , and the intersection of the vertical axis ⁇ 3 1 Indicates the relative rotation speed of the ring gear R1, that is, the relative rotation speed of the transmission member 18.
- the relative rotation speed of the transmission member 18 is It is higher than the horizontal axis X indicating the speed N E, the power distribution mechanism 9 4 functions as a speed-increasing machine.
- the speed increase speed is indicated by the horizontal line X3.
- the fourth clutch C4, the switching brake B 0, and the first brake B 1 is engaged, so that the intersection of the vertical line Y 4 and the horizontal line X 2 indicating the rotation speed of the fourth rotation element RE 4 (S 3) and the seventh rotation element RE 7 ( An oblique straight line L1 passing through the intersection of the vertical line Y7 and the horizontal line X1 indicating the rotation speed of S2), and the sixth rotation element RE6 (R2, R3) connected to the output shaft 22.
- the rotation speed of the first-speed output shaft 12 is shown at the intersection with the vertical line Y6 indicating the rotation speed of.
- an oblique straight line L2 determined by the engagement of the second clutch C2, the switching brake B0, and the first brake B1 and the sixth rotating element RE6 connected to the output shaft 22 are formed.
- the rotation speed of the second speed output shaft 22 is shown at the intersection with the vertical line Y6 indicating the rotation speed, and the third clutch C3, the switching brake B0, and the first brake B1 are engaged.
- the rotation speed of the third-speed output shaft 22 is shown at the intersection of the oblique straight line L3 determined by the above and the vertical line Y6 indicating the rotation speed of the sixth rotation element RE 6 connected to the output shaft 22.
- the second clutch C 2, the third clutch C 3, and the diagonal straight line L 4 determined by the engagement of the switching brake B 0, and the sixth rotation element RE 6 (R The rotation speed of the fourth speed output shaft 22 is shown at the intersection with the vertical line Y6 indicating the rotation speed of 2, 3).
- the horizontal straight line L5 determined by the engagement of the third clutch C3, the fourth clutch C4, and the switching brake B0, and the sixth rotating element RE6 (R2 , R3) indicates the rotation speed of the fifth-speed output shaft 22 at the intersection with the vertical line Y6 indicating the rotation speed.
- An oblique straight line L 6 determined by the engagement of the first clutch C 1, the third clutch C 3, and the switching brake B 0, and a sixth rotating element RE 6 (R 2 , R 3) indicates the rotation speed of the sixth-speed output shaft 22 at the intersection with the vertical line Y 6 indicating the rotation speed.
- An oblique straight line L7 determined by engagement of the first clutch C1, the fourth clutch C4, and the switching brake B0, and a sixth rotating element RE6 (R 2, R 3) The 7th speed output shaft 22 at the intersection with the vertical line Y6 indicating the rotation speed Is shown.
- An oblique straight line L8 determined by the engagement of the first clutch C1, the second clutch C and the switching brake B0, and the sixth rotating element RE6 (R2, R3) connected to the output shaft 22.
- the rotation speed of the eighth output shaft 22 is shown at the intersection with the vertical line Y6 indicating the rotation speed of).
- an oblique straight line LR determined by the engagement of the fourth clutch C 4, the switching brake B 0, and the second brake B 2, and a sixth rotating element RE 6 (R 2, the rotation speed of R 3)
- the rotation speed of the output shaft 22 of the reverse R is shown at the intersection with the vertical line Y6.
- the switching brake B0 does not necessarily need to be engaged.
- FIG. 25 is an engagement table showing the shift control operation of the automatic transmission 96 when the power distribution mechanism 94 is set to the continuously variable transmission state in the drive unit 92.
- FIG. 26 shows the operation at that time.
- the rotation speed can be controlled in a wide range by controlling the reaction force of the first electric motor M1, so that the straight line L0 Is rotated about the intersection of the horizontal line X2 and the vertical line Y2 in the range illustrated by the arrow, so that the first ring gear R1 indicated by the intersection of the straight line L0 and the vertical line Y3, rotational speed of the power transmitting member 1 8 is varied from the upper and lower sides of the engine rotational speed N E.
- the automatic transmission 96 causes the seventh rotation element RE 7 (S 2) to be driven by the low speed stage in which the second clutch C 2 and the first brake B 1 are engaged.
- the rotation speed of the second-speed output shaft 22 becomes Is shown.
- the high-speed stage in which the first clutch C1 and the second clutch C2 are engaged causes the rotation speed of the sixth rotation element RE6 connected to the flat straight line L8 and the output shaft 22 to be connected.
- the rotation speed of the eighth output shaft 22 is shown at the intersection with the vertical line Y 6 indicating.
- the straight line L0 is turned to the position shown by the broken line
- the straight line 2 is turned to the position shown by the broken line, and the intersection with the vertical line Y6 also moves.
- the rotation speed of the shaft 22 is steplessly changed.
- the straight line L0 is rotated to the position shown by the broken line
- the straight line L8 is translated (downward) to the position shown by the broken line
- the intersection with the vertical line Y6 also moves.
- the rotation speed of the output shaft 22 is changed steplessly.
- the power distribution mechanism 94 functions as a continuously variable transmission
- the automatic transmission 96 in series functions as a single-stage stepped transmission of a high-speed gear and a low-speed gear.
- the rotation speed input to the automatic transmission 96 that is, the rotation speed of the transmission member 18 is steplessly changed for each of the second and eighth gears of step 6, so that each gear is stepless.
- Speed ratio range is obtained. Therefore, the gear ratio ⁇ T of the entire drive device 92 can be obtained in a stepless manner as a gear ratio capable of continuously changing continuously between the respective gears.
- the power distribution mechanism 94 functioning as a continuously variable transmission portion or a first transmission portion and the automatic transmission 96 functioning as a fixed speed transmission portion or a second transmission portion are also provided.
- the same effects as in the above-described embodiment can be obtained.
- FIG. 27 is a skeleton diagram for explaining the configuration of the drive device 110 in another embodiment of the present invention.
- FIG. 28 is a combination of the gear position of the drive device 110 and the engagement of the hydraulic friction engagement device.
- FIG. 29 is an alignment chart for explaining a speed change operation of the driving device 110.
- This embodiment is different from the embodiments shown in FIGS. 1 to 3 in that the first clutch C1 is omitted and the method of establishing the reverse gear is different.
- differences between the driving device 110 and the driving device 10 will be mainly described.
- the drive unit 110 is, like the drive unit 10, a single pinion type first planetary gear unit 24 having a predetermined gear ratio 1 of, for example, about “0.418”, a switching clutch C 0, and a switching brake.
- a power distribution mechanism 16 having B 0 and a second planetary gear unit 26 of a single pinion type having a predetermined gear ratio 0 of, for example, about 0.56 2, for example, “0.425”
- Single pinion type third planetary gear set 28 having a predetermined gear ratio P 3 of the order
- single pinion type fourth planetary gear set having a predetermined gear ratio p 4 of the order of, for example, “0 4 2 1” Power distribution mechanism with 3 0 1 6
- an output shaft 22 with a four-speed forward automatic transmission 1 12 connected in series via a transmission member 18. .
- the first clutch C1 is omitted as compared with the drive device 10, so the drive device 10 is selectively connected to the transmission member 18 via the first clutch C1.
- the third ring gear R 3 and the fourth sun gear S 4 are connected to the transmission member 18 at all times. That is, in the automatic transmission 112, the second sun gear S2 and the third sun gear S3 are physically connected and selectively connected to the transmission member 18 via the second clutch C2.
- the second brake CA 2 is selectively connected to the case 11 via the second brake B 2
- the fourth ring gear R 4 is selectively connected to the case 11 via the first brake B 1.
- the second ring gear R2, the third carrier CA3, and the fourth carrier CA4 are integrally connected to the case 12 via the brake B3 and connected to the output shaft 2, and the third ring gear R2 is connected to the output shaft 2.
- the ring gear R3 and the fourth sun gear S4 are integrally connected and connected to the transmission member 18.
- the first clutch C1 is omitted as compared with the driving device 10, but the first to fifth gear stages similar to those of the driving device 10 are obtained. .
- the power distribution mechanism 16 is provided with a switching clutch C0 and a switching brake B0. When these are engaged, the power distribution mechanism 16 can be operated in a continuously variable transmission state in which the power transmission mechanism 16 can be operated as a continuously variable transmission as described above. It is possible to configure a constant speed change state operable as the transmission of the present invention. Therefore, in the drive device 110, the power distribution mechanism 16 and the automatic transmission 112 that are brought into the constant speed change state by engaging either the switching clutch C0 or the switching brake B0 are activated. A step-variable transmission is formed, and the stepless transmission is performed between the power distribution mechanism 16 and the automatic transmission 1 1 2 which are in the stepless transmission state by disengaging neither the switching clutch C 0 nor the switching brake B 0. Machine is configured.
- the gear ratio a1 is set to a maximum value, for example, by engagement of the switching clutch C0 and the third brake B3.
- the first gear speed of about "3.357” is established, and the engagement of the switching clutch C0 and the second brake B2 causes the gear ratio a2 to be smaller than the first gear speed.
- the second gear stage of about 2.18'0 is established, and the engagement of the switching clutch CO and the first brake B1 causes the gear ratio a3 to be smaller than the second gear stage.
- a third gear stage of about "1.42 4" is established, and the gear ratio a4 is smaller than that of the third gear stage due to engagement of the switching clutch C0 and the second clutch C2.
- a fourth gear for example, about “1 .0000” is established, and the second clutch C 2 and the switching brake B 0 are engaged.
- the engagement establishes the fifth gear, in which the gear ratio a5 is smaller than the fourth gear, for example, about “0.75”.
- the second clutch C2 and the third brake # 3 are engaged, and the second clutch C2 as shown by the fourth or fifth gear.
- the rotation elements of the automatic transmission 20 are rotated integrally by the engagement of the transmission.
- the first clutch C 1 is released and the reverse gear is released because the rotation speed of the transmission member 18 is not output from the output shaft 22 as it is.
- a step has been established.
- the rotation direction of the transmission member 18 is inverted with respect to the first to fifth gears and output to the automatic transmission 1 12 so that the internal
- a reverse gear ratio corresponding to a reverse gear is achieved without reversing the rotation direction of the transmission member 18. That is, in the present embodiment, the reverse transmission gear ratio corresponding to the reverse gear is achieved even if the automatic transmission 112 is not provided with the first clutch C1. '
- the input distribution direction that is, the rotation direction of the engine 8 is reversed by the power distribution mechanism 16 due to the function of the power distribution mechanism 16 as a continuously variable transmission, and the transmission member 18 becomes negative. Rotation speed. Then, the negative rotation speed of the transmission member 18 is input to the automatic transmission 112, and the third brake ⁇ 3 is engaged, so that the transmission gear ratio R R1 is an arbitrary value.
- a gear ratio for reverse running corresponding to is established. Normally, the gear ratio R 1 may be set to about “3.209”, similarly to the case of the driving device 10 shown in FIGS. 1 to 3, but for example, on a flat road, a sloping road, a bad road, or the like.
- the first reverse gear may be established as described below.
- the negative rotation speed of the transmission member 18 is input to the automatic transmission 112 and the second clutch C2 is engaged, so that the second clutch C2 is engaged.
- the rotating elements of the transmission 1 1 2 By outputting the negative rotation speed of the transmission member 18 from the output shaft 22 as it is, a reverse running gear ratio in which the speed ratio aR is an arbitrary value is established.
- Fig. 9 shows a drive unit 1 composed of a power distribution mechanism 16 that functions as a continuously variable transmission unit or first speed unit and an automatic transmission 1 12 that functions as a variable transmission unit or second transmission unit.
- a drive unit 1 composed of a power distribution mechanism 16 that functions as a continuously variable transmission unit or first speed unit and an automatic transmission 1 12 that functions as a variable transmission unit or second transmission unit.
- an alignment chart is shown in which the relative relationship between the rotational speeds of the rotary elements having different connection states to the gear stage ⁇ can be represented on a straight line.
- the switching clutch CO and the switching brake B0 are released, and when the switching clutch C0 or the switching brake B0 is engaged, the rotation speed of each element of the power distribution mechanism 16 is as described above. Same as in the case.
- the configuration of each of the fourth to eighth rotating elements RE 4 to RE 8 of the automatic transmission 112 is the same as that of the automatic transmission 20.
- the fourth rotating element RE 4 is selectively connected to the transmission member 18 via the second clutch C 2 and is selectively connected to the case 1 2 via the first brake B 1.
- the fifth rotating element RE 5 is selectively connected to the case 12 via the second brake B
- the sixth rotating element RE 6 is selectively connected to the case 12 via the third brake B 3.
- the seventh rotation element RE 7 is connected to the output shaft 22, and the eighth rotation element RE 8 is connected to the transmission member 18.
- the third transmission B is connected to the transmission member 18 so that the rotational speed of the transmission member 18 is constantly set.
- the rotation speed of the first-speed output shaft 22 is shown at the intersection of the straight line L1 of the first rotation axis and the vertical line Y7 indicating the rotation speed of the seventh rotation element RE7 connected to the output shaft 22.
- intersection of the diagonal straight line L 2 determined by the engagement of the second brake B 2 and the vertical line Y 7 indicating the rotational speed of the seventh rotary element RE 7 connected to the output shaft 22 Indicates the rotation speed of the output shaft 22 in the second speed, and is determined by the engagement of the first brake B 1.
- the oblique straight line L 3 and the rotation element RE 7 connected to the output shaft 22 The rotation speed of the third speed output shaft 12 is shown at the intersection with the vertical line Y7 indicating the rotation speed, and the horizontal straight line L4 and the output shaft 2 2 determined by the engagement of the second clutch C2
- the concatenated with The rotation speed of the fourth-speed output shaft 22 is shown at the intersection with the vertical line Y7 indicating the rotation speed of the seven-rotation element RE7.
- the power distribution mechanism 16 transmits to the eighth rotating element R ⁇ 8 at a rotation speed that is steplessly changed with respect to the engine rotation speed ⁇ ⁇ ⁇ . Power is input.
- the state of the power distribution mechanism 16 is set to a straight line L 0 R 1 so that the rotation direction of the engine 8 is reversed, a negative rotation speed is input to the eighth rotation element RE 8 and the third brake ⁇ 3 is engaged [The first reverse gear ratio at the intersection of the oblique straight line LR 1 determined by this and the vertical line ⁇ 7 indicating the rotation speed of the seventh rotating element R ⁇ 7 connected to the output shaft 2 2 The rotation speed of the output shaft 11 of Rev 1 is indicated.
- the eighth rotation element RE 8 A vertical line indicating the rotation speed of the seventh rotation element RE 7 connected to the horizontal straight line LR 2 and the output shaft 22, which is determined by inputting a negative rotation speed to the second shaft C 2 and engaging the second clutch C 2.
- the rotation speed of the output shaft 2 at the second reverse gear ratio Rev 2 is indicated at the intersection with Y7.
- the power distribution mechanism 16 functioning as a continuously variable transmission portion or a first transmission portion and the automatic transmission 1 12 functioning as a stepped transmission portion or a second transmission portion are also provided.
- the same effects as in the above-described embodiment can be obtained.
- the first clutch C1 is omitted, so that the driving device 110 can be further reduced in size and the axial dimension can be further reduced.
- the driving device 110 of the present embodiment is configured to rotate the transmission member 18 during reverse travel.
- the direction is inverted to the first to fifth gears and output to the automatic transmission 1 1 2, so the input rotation to the automatic transmission 1 1 2 is reversed within the automatic transmission 1 1 2
- a reverse gear ratio corresponding to the reverse gear is achieved.
- FIG. 30 is a skeleton diagram illustrating the configuration of a drive device 120 according to another embodiment of the present invention
- FIG. 31 is a combination of a shift speed of the drive device 10 and engagement of a hydraulic friction engagement device.
- FIG. 32 is an alignment chart for explaining a speed change operation of the driving device 110.
- This embodiment is mainly different from the embodiments shown in FIGS. 1 to 3 mainly in that the power distribution mechanism 16 and the automatic transmission 20 are not arranged on the same axis.
- differences between the driving device 120 and the driving device 10 will be mainly described.
- a drive device 120 is connected to an input shaft 14 and a rotatable concentrically disposed on a first shaft center 14 c in a case 12 attached to a vehicle body.
- a power distribution mechanism 16 connected directly or indirectly via a pulsation absorbing damper (vibration damping device) (not shown) and a second axis 32 c arranged parallel to the first axis 14 c And a differential drive gear 32 as an output rotating member connected to the automatic transmission 20, a power distribution mechanism 16 and an automatic transmission 2.
- a counter gear pair CG is provided as a transmission member that connects power transmission between the counter gear and the counter gear.
- This drive 10 is used for FF (front engine 'front drive) vehicles or RR (rear engine) (Rear drive) type vehicle, which is provided between an engine 8 as a driving force source for traveling and a pair of drive wheels 38 to transfer power to a differential drive gear 32. It is transmitted to a pair of drive wheels 38 via a differential ring gear 34, a differential gear device 36, a pair of axles 37, and the like, which are engaged with each other.
- the counter gear pair CG includes a counter drive gear CG 1 that is rotatably mounted on the first shaft center 14 c so as to be rotatable concentrically with the power distribution mechanism 16 and is connected to the first ring gear R 1.
- the counter which is rotatably disposed on the second shaft center 3 c concentrically with the automatic transmission 20 and is connected to the automatic transmission 20 via the first clutch C 1 and the second clutch C 2.
- a driven gear CG 2 is provided, and is constituted by a gear pair as a pair of members in which a counter drive gear CG 1 and a counter driven gear CG 2 are always engaged.
- the power gear and the CG are
- the counter drive gear CG 1 is equivalent to a transmission member that forms a part of the transmission member 18 on the first shaft center 14 c side
- the counter driven gear CG 2 is a second shaft center 3 2 c side
- the counter gear pair CG is disposed adjacent to the power distribution mechanism 16 at a position opposite to the engine 8 with respect to the power distribution mechanism 16.
- the power distribution mechanism 16 is disposed adjacent to the counter gear pair CG so as to be located between the engine 8 and the counter gear pair CG.
- the second motor M2 is disposed on the first shaft center 14c adjacent to the counter gear pair CG so as to be located between the first planetary gear unit 24 and the counter gear pair CG. , Connected to the counter drive gear CG1.
- the differential drive gear 32 is disposed on the opposite side of the automatic transmission 20 from the counter gear pair CG, that is, on the engine side.
- the automatic transmission 20 is disposed adjacent to the counter gear pair CG so as to be located between the counter gear pair CG and the differential drive gear 32 (engine 8).
- Counter gear pair C A second planetary gear set 26, a third planetary gear set 28, and a fourth planetary gear set 30 are arranged in this order from G toward the differential drive gear 32.
- the first clutch C1 and the second clutch C2 are disposed so as to be located between the counter gear pair CG and the second planetary gear set 26. .
- the transmission member that connects the power distribution mechanism 16 and the automatic transmission 20 is merely changed from the transmission member 18 to the counter gear pair CG, and the power distribution mechanism 16 and the automatic transmission
- the configuration of 20 and the connection relationship between them are the same as those of the embodiment shown in FIGS. Therefore, the engagement table of FIG. 31 and the alignment chart of FIG. 32 are the same as the engagement table of FIG. 2 and the alignment chart of FIG. 3, respectively.
- the power distribution mechanism 16 functioning as a continuously variable transmission unit or a first transmission unit and the automatic transmission 20 functioning as a stepped transmission unit or a first transmission unit are also used.
- the same effects as in the above-described embodiment can be obtained.
- the power distribution mechanism 16 and the automatic transmission 20 are not disposed on the same axis as compared with the embodiment shown in FIGS. 1 to 3, the axial direction of the drive unit 120 is Dimensions are further reduced. Therefore, in general, the drive unit can be placed horizontally for an FF vehicle or an RR vehicle in which the axial dimension of the drive device is limited by the vehicle width, that is, the first shaft center 14 c and the second shaft center 32.
- FIG. 33 is a skeleton view for explaining the configuration of a driving device 130 according to another embodiment of the present invention.
- This embodiment is different from the embodiments shown in FIGS. 30 to 32 in the arrangement of the second electric motor M 2.
- the arrangement (layout) of the second motor M2 will be described with reference to FIG.
- the second electric motor M2 is disposed between the first clutch C1 and the second clutch C2 and the counter gear pair CG so that the second motor M2 is adjacent to the counter gear pair CG. 2c, and is connected to a counter driven gear CG2 which is a transmission member on the second shaft center 32c side.
- the configurations of the power distribution mechanism 16 and the automatic transmission 20 and the connection relationship between them are the same as those of the embodiment shown in FIGS. 30 to 32. Although not shown, they are the same as the engagement table of FIG. 31 and the alignment chart of FIG. 32, respectively.
- the power distribution mechanism 16 functioning as the continuously variable transmission portion or the first transmission portion and the automatic transmission 20 functioning as the stepped transmission portion or the first transmission portion are also used.
- the power distribution mechanism 16 and the automatic transmission 20 are not disposed on the same axis as compared with the embodiment shown in FIGS. 1 to 3, the axial direction of the drive device 130 is Dimensions are further reduced. Therefore, in general, the drive unit can be placed horizontally for FF vehicles and RR vehicles where the axial dimension of the drive unit is limited by the vehicle width, that is, the first shaft center 14c and the second shaft center 32 are in the vehicle width direction.
- the power distribution mechanism 16 and the automatic transmission 20 are disposed between the engine 8 (differential drive gear 32) and the power transmission gear pair CG).
- the dimension in the axial direction of 0 is further reduced.
- the second electric motor M2 is disposed on the second shaft center 32c, the dimension of the first shaft center 14c in the axial direction is reduced.
- FIG. 34 is a skeleton diagram for explaining the configuration of a driving device 140 according to another embodiment of the present invention.
- This embodiment is different from the embodiments shown in FIGS. 30 to 32 in the arrangement of the second electric motor M 2 and the arrangement of the first clutch C 1 and the second clutch C 2.
- the arrangement (layout) will be described with reference to FIG.
- the second electric motor M 2 is disposed on the first shaft center 14 c adjacent to the power center gear pair CG at a position opposite to the first planetary gear set 24 with respect to the counter gear pair CG. It is connected to a power transmission gear CG 1 which is a transmission member on the shaft center 14 c side.
- the first clutch C 1 and the second clutch C 2 are located on the opposite side of the second planetary gear train 26 with respect to the counter gear pair CG and on the second shaft center 32 c adjacent to the counter gear pair CG. It is arranged in. Also, The configurations of the force distribution mechanism 16 and the automatic transmission 20 and their connection relationship are the same as those of the embodiment shown in FIGS. 30 to 32.
- the engagement table and the alignment chart for the embodiment of FIG. Although not shown, they are the same as the engagement table of FIG. 31 and the alignment chart of FIG. 32, respectively.
- the drive device 140 of this embodiment also functions as a continuously variable transmission portion or a first transmission portion.
- the automatic transmission 20 functioning as a stepped transmission portion or a second transmission portion, the same effects as in the above-described embodiment can be obtained. Further, since the power distribution mechanism 16 and the automatic transmission 20 are not disposed on the same axis as compared with the embodiment shown in FIGS. 1 to 3, the axial direction of the drive unit 140 is not provided. Dimensions are further reduced. Therefore, in general, the drive unit can be placed horizontally for FF vehicles and RR vehicles in which the axial dimension of the drive unit is limited by the vehicle width. It can be suitably used as a drive device that can be mounted parallel to the direction. Furthermore, since the second electric motor M2 is disposed on the first shaft center 14c, the dimension of the second shaft center 3c in the axial direction is reduced. Example 10
- FIG. 35 is a skeleton diagram for explaining the configuration of a driving device 150 according to another embodiment of the present invention
- FIG. 36 is a combination of a shift speed of the driving device 150 and engagement of a hydraulic friction engagement device.
- FIG. 37 is an alignment chart for explaining the gear shifting operation of the driving device 150.
- This embodiment is mainly different from the embodiment shown in FIGS. 17 to 29 mainly in that the power distribution mechanism 16 and the automatic transmission 1 12 are not arranged on the same axis. Do Further, as compared with the embodiment shown in FIGS. 30 to 32, the point that the first clutch C1 is omitted and the method of establishing the reverse gear are different.
- the transmission member that connects the power distribution mechanism 16 and the automatic transmission 112 is different.
- the other parts are the same as those of the embodiment shown in FIGS. 27 to 29, including the method of establishing the reverse gear, except that the transmission member 18 is replaced with the counter gear pair CG.
- the collinear charts of Fig. 37 and Fig. 37 are the engagement chart of Fig. 28 and the collinear chart of Fig. 19, respectively. It is similar to the figure.
- the power distribution mechanism 16 functioning as a continuously variable transmission unit or a first transmission unit and the automatic transmission 1 12 functioning as a stepped transmission unit or a second transmission unit are also included.
- the same effect as in the above-described embodiment can be obtained.
- the power distribution mechanism 16 and the automatic transmission 1 12 are not arranged on the same shaft center as compared with the embodiment shown in FIGS. 27 to 29, the driving device 150 The dimension in the axial direction of is reduced. Therefore, in general, the drive unit can be placed horizontally for FF vehicles and RR vehicles where the axial dimension of the drive unit is limited by the vehicle width, that is, the first shaft center 14 c and the second shaft center 32 c are the vehicle width.
- FIG. 38 is a skeleton view for explaining the configuration of a driving device 160 according to another embodiment of the present invention.
- This embodiment differs from the embodiment shown in FIGS. 35 to 37 in the arrangement of the second electric motor M 2 and the arrangement of the second clutch C 2.
- the arrangement (layout) will be described with reference to FIG.
- the second motor M 2 is disposed on the first shaft center 14 c adjacent to the counter gear pair CG at a position opposite to the first planetary gear set 24 with respect to the counter gear pair CG, and It is connected to the counter drive gear CG1, which is the transmission member on the shaft center 14c side.
- the second clutch C 2 is disposed on the second shaft center 32 c adjacent to the counter gear pair CG at a position opposite to the second planetary gear set 26 with respect to the counter gear pair CG. .
- the configurations of the power distribution mechanism 16 and the automatic transmission 112 and their connection relations are the same as those of the embodiment shown in FIGS.
- the engagement table and the alignment chart for the example are not shown, they are the same as the engagement table and the alignment chart of FIG. 37, respectively. ,
- the power distribution mechanism 16 functioning as a continuously variable transmission unit or a first transmission unit and the automatic transmission 1 12 functioning as a stepped transmission unit or a second transmission unit are also provided.
- the same effect as in the above-described embodiment can be obtained.
- the power distribution mechanism 16 and the automatic transmission 1 12 are not disposed on the same shaft center as compared with the embodiment shown in FIGS. 27 to 29, the driving device 16 0
- the dimension in the axial direction of is reduced. Therefore, in general, the drive unit can be placed horizontally for FF vehicles and RR vehicles where the axial dimension of the drive unit is limited by the vehicle width, that is, the first shaft center 14 c and the second shaft center 32 c are the vehicle width. It can be suitably used as a drive device that can be mounted parallel to the direction. Furthermore, since the second motor M2 is disposed on the first shaft center 14c, the dimension of the second shaft center 32c in the axial direction is reduced.
- Example 1 2
- FIG. 39 is a skeleton diagram illustrating the configuration of a driving device 170 according to another embodiment of the present invention.
- FIG. 40 is an engagement table showing the relationship between the gear position of the drive device 170 and the combination of engagement of the hydraulic friction engagement devices.
- FIG. 41 shows the shift operation of the drive device 170.
- FIG. This embodiment is different from the embodiments shown in FIGS. 14 to 16 in that the first clutch C1 is omitted and the method of establishing the reverse gear is different.
- differences between the driving device 170 and the driving device 70 will be mainly described.
- the driving device 170 has a single pinion type first planetary gear device 24 having a predetermined gear ratio p 1 of, for example, about “0.418”, a switching clutch C 0, and a switching brake similarly to the driving device ⁇ 0.
- a single pinion type third planetary gear set 28 having a predetermined gear ratio p 3 of about the same degree is connected in series via a transmission member 18 between the power distribution mechanism 16 and the output shaft 22. And a three-speed automatic transmission 17 2.
- the first clutch C 1 is omitted as compared with the driving device 70, and in the useless driving device 70, the transmission member 18 is selectively connected via the first clutch C 1.
- the second ring gear R 2 is always connected to the transmission member 18. That is, in the automatic transmission 17 2, the first sun gear S 2 of the gear unit 26 and the third sun gear S 3 of the third planetary gear unit 28 are physically connected to each other.
- the second carrier of the second planetary gear set 26 is selectively connected to the transmission member 18 through the first clutch B 2 and selectively connected to the case 12 through the first brake B 1 CA 2 and the third ring gear R 3 of the third planetary gear set 28 are integrally connected and connected to the output shaft 22, and the second ring gear R 2 is connected to the transmission member 18 and the third carrier CA 3 is selectively connected to the case 12 via the second brake B2.
- the switching clutch C 0, the second clutch C 2, the switching brake B 0, and the first brake By selectively engaging B1 and the second brake B2, any one of the first gear (first gear) to the fourth gear (fourth gear) is achieved.
- the first clutch C1 is omitted as compared with the driving device 70, but the first to fourth gear speeds similar to those of the driving device 70 are obtained.
- the power distribution mechanism 16 is provided with a switching clutch C0 and a switching brake # 0, and any one of the switching clutch C0 and the switching brake # 0 is engaged.
- the power distribution mechanism 16 can be operated as a single-stage or multi-stage transmission with one or more speed ratios, in addition to the above-mentioned continuously variable transmission that can operate as a continuously variable transmission. It is possible to configure the state.
- the switching clutch C 0 and the switching brake The step-variable transmission is constituted by the power distribution mechanism 16 and the automatic transmission 17 2 that are brought into a constant speed change state by engaging any one of B 0 and the switching clutch C 0 and the switching brake B
- the power distribution mechanism 16 and the automatic transmission 1 T 2 which are brought into a continuously variable transmission state by not engaging any one of 0, constitute a continuously variable transmission.
- the gear ratio 71 is set to a maximum value, for example, by engagement of the switching clutch C0 and the second brake B2, as shown in FIG.
- the first gear stage of about “2.804” is established, and the engagement of the switching clutch C0 and the first brake B1 causes the gear ratio a to be smaller than the first gear stage, for example.
- a second speed gear ratio of about "1.531" is established, and by the engagement of the switching clutch C0 and the second clutch C2, the gear ratio a3 is smaller than the second gear speed, for example.
- the third speed which is about “1 .0000”, is established, and the second clutch C 2 and the switching brake B 0 are engaged, so that the gear ratio a4 is smaller than that of the third speed.
- a fourth gear which is about “0.705”, is established.
- the neutral "N" state for example, all of the switching clutch C0, the second clutch C2, the switching brake B0, the first brake B1, and the second brake B2 are released.
- the second clutch C2 and the second brake B2 are engaged, and the second clutch C2 and the fourth clutch
- the rotation speed of the transmission member 18 is not output from the output shaft 22 as it is, so that the first clutch C1 is released and the reverse gear is established.
- the transmission direction of the transmission member 18 is inverted with respect to the first to fourth gears and output to the automatic transmission 17 2, whereby the automatic transmission 1 In 72, the reverse traveling gear ratio corresponding to the reverse gear is achieved without reversing the rotation direction of the transmission member 18. That is, in the present embodiment, the reverse transmission gear ratio corresponding to the reverse gear is achieved even if the automatic transmission 172 is not provided with the first clutch C1.
- the input rotation direction that is, the rotation direction of the engine 8 is reversed by the power distribution mechanism 16 by the function of the power distribution mechanism 16 as a continuously variable transmission, so that the transmission member 18 is rotated. Negative rotation speed is assumed. Then, the negative rotation speed of the transmission member 18 is input to the automatic transmission 172, and the second brake B2 is engaged.
- a gear ratio for reverse running corresponding to is established.
- the gear ratio R 1 may be set to about “2.393” as in the case of the driving device 70 shown in FIGS. 14 to 16, but, for example, it may be a flat road, a sloping road, or a bad road.
- a second reverse gear may be established as described below.
- the negative rotation speed of the transmission member 18 is input to the automatic transmission 17 2 and the second clutch C 2 is engaged, so that the automatic transmission 17 is engaged.
- the gear ratio R 2 is an arbitrary value. Gear ratio is established.
- FIG. 41 shows a drive unit 1 including a power distribution mechanism 16 functioning as a continuously variable transmission unit or a first transmission unit and an automatic transmission 172 functioning as a stepped transmission unit or a second transmission unit.
- a collinear diagram is shown, which can represent, on a straight line, a relative relationship between the rotational speeds of the rotary elements having different connection states for each gear.
- Switching clutch C 0 and The rotation speed of each element of the power distribution mechanism 16 when the switching brake B 0 is released and when the switching clutch C 0 or the switching brake B 0 is engaged are the same as those in the above-described case.
- the configuration of each rotating element of the fourth to seventh rotating elements RE4 to RE7 of the automatic transmission 172 is the same as that of the automatic transmission 72.
- the fourth rotating element RE 4 is selectively connected to the transmission member 18 via the second clutch C 2 and is selectively connected to the case 12 via the first brake B 1.
- the fifth rotating element RE 5 is selectively connected to the case 12 via the second brake B, and the sixth rotating element RE 6 is connected to the output shaft 22 of the automatic transmission 17 2.
- the seven-rotation element RE 7 is connected to the transmission member 18.
- the automatic transmission 172 when the second brake B2 is engaged, the automatic transmission 172 is connected to the transmission member 18 so that the rotation speed of the transmission member 18 is constantly maintained. Diagonal passing through the intersection of the vertical line Y7 indicating the rotation speed of the seventh rotation element RE7 and the horizontal line X2 and the intersection of the vertical line Y5 indicating the rotation speed of the fifth rotation element RE5 and the horizontal line X1 The rotation speed of the first-speed output shaft 22 is shown at the intersection of the straight line L 1 and the vertical line Y 6 indicating the rotation speed of the sixth rotation element RE 6 connected to the output shaft 22.
- the intersection of the diagonal straight line L 2 determined by the engagement of the first brake B 1 and the vertical line Y 6 indicating the rotation speed of the sixth rotation element RE 6 connected to the output shaft 22 Indicates the rotational speed of the second-speed output shaft 22 and is determined by the engagement of the second clutch C 2 .7
- the flat straight line L 3 and the sixth rotary element RE 6 connected to the output shaft 22 The rotation speed of the third-speed output shaft 22 is shown at the intersection with the vertical line Y6.
- the switching clutch C 0 is engaged, the result, power from the power distribution mechanism 1 6 to the seventh rotary element RE 7 at the same rotational speed as the engine speed N E Entered.
- the seventh rotation element RE 7 A vertical line indicating the rotation speed of the sixth rotation element RE 6 connected to the horizontal straight line LR 2 and the output shaft 22, which is determined by inputting a negative rotation speed to the second clutch C 2 and engaging the second clutch C 2.
- the rotation speed of the output shaft 22 of the second reverse gear ratio Rev 2 is indicated.
- a power distribution mechanism 16 functioning as a continuously variable transmission portion or a first transmission portion, and an automatic transmission 172 functioning as a stepped transmission portion or a first transmission portion.
- the first clutch C 1 is omitted, so that the driving device 170 can be made more compact and the axial dimension can be further reduced. .
- the rotation direction of the transmission member 18 is inverted to the first to fourth gears and output to the automatic transmission 172. Therefore, even if there is no engagement device or gear device for achieving the reverse gear for reversing the input rotation to the automatic transmission 17
- the output shaft 22 of the transmission 17 2 can output a reverse rotation for the reverse traveling with respect to the forward traveling. For example, even if the automatic transmission is not provided with the first clutch C1 for the purpose of downsizing the drive device, a reverse gear ratio corresponding to the reverse gear is achieved.
- the input rotation to the automatic transmission 17 2, which is the output of the power distribution mechanism 16, which is continuously variable by the engagement of the second brake B 2 or the engagement of the second clutch C 2 is reduced.
- the output rotation from the automatic transmission 1 7 2 is used as it is, A reverse gear ratio in which R is an arbitrary value is achieved. For example, a reverse gear ratio larger than the first gear ratio can be obtained.
- FIG. 42 is a skeleton diagram illustrating the configuration of a driving device 180 according to another embodiment of the present invention.
- FIG. 43 is an engagement table showing the relationship between the gear position of the drive device 180 and the combination of engagement of the hydraulic friction engagement devices.
- FIG. 44 shows the shift operation of the drive device 180.
- FIG. This embodiment is mainly different from the embodiments shown in FIGS. 14 to 16 mainly in that the power distribution mechanism 16 and the automatic transmission 72 are not arranged on the same axis. .
- the following mainly describes the differences between the driving device 180 and the driving device 70.
- the driving device 180 is a first shaft center 14 in a case 12 attached to a vehicle body.
- the input shaft 14 that is rotatably arranged concentrically on the c and a power distribution mechanism 16 that is directly or indirectly connected to the input shaft 14 via a pulsation absorbing damper (vibration damping device) not shown.
- an automatic transmission 72 arranged concentrically rotatably on a first axis 32 c arranged parallel to the first axis 14 c and connected to the automatic transmission 72.
- a differential drive gear 32 as an output rotating member, and a power center gear pair CG as a transmitting member that connects the first shaft center 14c and the second shaft center 32c so as to be able to transmit power are provided.
- This drive device 180 is suitably used for an FF (front engine / front drive) type vehicle or an RR (rear engine / rear drive) type vehicle which is placed horizontally in a vehicle.
- the power center gear pair CG includes a counter drive gear CG 1 that is rotatably disposed on the first shaft center 14 .C concentrically with the power distribution mechanism 16 and is connected to the first ring gear R 1.
- a counter that is rotatably mounted on the two-axis center 3 2 c concentrically with the automatic transmission 72 and connected to the automatic transmission 72 via the first clutch C 1 and the second clutch C. It includes an evening driven gear CG2, and is constituted by a gear pair as a pair of members in which a counter drive gear CG1 and a counterdriven gear CG2 are always engaged.
- the counter gear CG becomes This corresponds to a transmission member 18 that connects the power distribution mechanism 16 and the automatic transmission 72 in the embodiment shown in FIGS. 4 to 16.
- the counter drive gear CG 1 corresponds to the transmission member on the first shaft center 14 c constituting the transmission member 18
- the counter driven gear CG 2 corresponds to the second shaft center constituting the transmission member 18 This corresponds to the transmission member on the 3c side.
- the counter gear pair CG is disposed adjacent to the power distribution mechanism 16 at a position opposite to the engine 8 with respect to the power distribution mechanism 16.
- the power distribution mechanism 16 is disposed adjacent to the counter gear pair CG so as to be located between the engine 8 and the counter gear pair CG.
- the second electric motor M 2 is disposed on the first shaft center 14 c adjacent to the counter gear pair CG so as to be located between the car device 24 and the counter gear pair CG, Counter drive gear Connected to CG1.
- the differential drive gear 32 is disposed on the opposite side of the automatic transmission 72 from the counter gear pair CG, that is, on the engine side.
- the automatic transmission 72 is disposed adjacent to the counter gear pair CG so as to be located between the counter gear pair CG and the differential drive gear 32 (engine 8).
- a second planetary gear set 26 and a third planetary gear set 28 are arranged in order from the counter gear pair CG to the differential drive gear 32.
- the first clutch C 1 and the second clutch C 2 are disposed so as to be located between the counter gear pair CG and the second planetary gear set 26.
- the transmission member connecting the power distribution mechanism 16 and the automatic transmission 72 is merely changed from the transmission member 18 to the counter gear pair CG, and the power distribution mechanism 16 and the automatic transmission
- the configuration of 72 and their connection relationship are the same as those of the embodiment shown in FIGS. 14 to 16. Therefore, the engagement table in Fig. 43 and the alignment chart in Fig. This is the same as the engagement table of FIG. 15 and the alignment chart of FIG.
- the power distribution mechanism 16 acting as a continuously variable transmission portion or a first transmission portion and the automatic transmission 72 functioning as a stepped transmission portion or a first transmission portion are also provided.
- the shaft of the driving device 180 is not provided.
- the dimension in the center direction is shorter. Therefore, in general, the drive unit can be placed horizontally for FF vehicles and RR vehicles, where the axial dimension of the drive unit is limited by the vehicle width. It can be suitably used as a drive device that can be mounted parallel to the direction.
- the power distribution mechanism 16 and the automatic transmission 72 are provided with an engine 8 (differential drive gear 32). As a result, the axial dimension of the driving device 180 is further reduced. Further, since the second electric motor M2 is provided on the first shaft center 14c, the dimension of the second shaft center 32c in the axial direction is reduced. Example 14
- FIG. 45 is a skeleton view for explaining the configuration of a driving device 190 according to another embodiment of the present invention.
- This embodiment is different from the embodiment shown in FIGS. 42 to 44 in the arrangement of the second electric motor M 2.
- the arrangement (layout) of the second motor M2 will be described with reference to FIGS.
- the second motor M 2 is located on the second shaft center 32 c adjacent to the counter gear pair CG so as to be located between the first clutch C 1 and the second clutch C 2 and the counter gear pair CG. It is disposed and connected to a counter driven gear CG2 which is a transmission member on the second shaft center 32c side.
- the configurations of the power distribution mechanism 16 and the automatic transmission 72 and their connection relationship are the same as those of the embodiment shown in FIGS. 42 to 44, and the engagement table and the collinear line for the embodiment of FIG. Although not shown, they are the same as the engagement table in FIG. 43 and the alignment chart in FIG. 44, respectively.
- the power distribution mechanism 16 functioning as a continuously variable transmission portion or a first transmission portion and the automatic transmission 72 functioning as a stepped transmission portion or a first transmission portion are also provided.
- the same effects as in the above-described embodiment can be obtained.
- the drive unit 190 Dimensions are further reduced. Therefore, in general, the drive unit can be placed horizontally for FF vehicles and RR vehicles in which the axial dimension of the drive unit is limited by the vehicle width. It can be suitably used as a drive device that can be mounted parallel to the direction.
- FIG. 46 is a skeleton view illustrating the configuration of a driving device 200 according to another embodiment of the present invention.
- This embodiment is different from the embodiments shown in FIGS. 42 to 44 in the arrangement of the first electric motor M 2, the arrangement of the first clutch C 1 and the arrangement of the second planetary gear unit 26.
- the arrangement (layout) will be described with reference to FIG.
- the second motor M 2 is disposed on the first shaft center 14 c adjacent to the power transmission gear pair CG at a position on the opposite side of the first planetary gear set 4 with respect to the counter gear pair CG, It is connected to the counter drive gear CG1, which is the transmission member on the first shaft center 14c side.
- the first clutch C 1 and the second planetary gear train 26 are located at positions opposite to the second clutch C 2 and the third planetary gear train 28 with respect to the counter gear pair CG. It is arranged on the second shaft center 32 c so as to be closer to the counter gear pair CG than to the planetary gear set 26. Further, the configurations of the power distribution mechanism 16 and the automatic transmission 72 and their connection relationship are the same as those of the embodiment shown in FIGS. 42 to 44. Although the alignment chart is not shown, they are the same as the engagement table of FIG. 43 and the alignment chart of FIG. 44, respectively.
- the power distribution mechanism 16 functioning as a continuously variable transmission unit or a first transmission unit and the automatic transmission 72 functioning as a stepped transmission unit or a second transmission unit are also included.
- the power distribution mechanism 16 and the automatic transmission 72 are not arranged on the same axis as compared with the embodiment shown in FIGS. The dimensions are shorter. Therefore, in general, the drive unit can be placed horizontally for FF vehicles and RR vehicles in which the axial dimension of the drive unit is limited by the vehicle width. It can be suitably used as a drive device that can be mounted parallel to the direction. Further, since the second electric motor M2 is disposed on the first shaft center 14c, the axial dimension of the second shaft center 32c is reduced.
- FIG. 47 is a skeleton diagram illustrating the configuration of a driving device 210 according to another embodiment of the present invention.
- FIG. 48 is an engagement table showing the relationship between the gear position of the drive device 210 and the combination of engagement of the hydraulic friction engagement device
- FIG. 49 shows the shift operation of the drive device 210.
- FIG. This embodiment is mainly different from the embodiments shown in FIGS. 39 to 41 mainly in that the power distribution mechanism 16 and the automatic transmission 172 are not arranged on the same axis. Yes. Further, as compared with the embodiment shown in FIGS. 42 to 44, the point that the first clutch C1 is omitted and the method of establishing the reverse gear are different.
- the transmission member that connects the power distribution mechanism 16 and the automatic transmission 172 is Other than the transmission member 18 being replaced by the counter gear pair CG, the rest is the same as the embodiment shown in FIGS. 39 to 41, including the method of establishing the reverse gear, and the engagement table of FIG.
- the alignment chart of FIG. 49 is the same as the engagement chart of FIG. 40 and the alignment chart of FIG. 41, respectively.
- the arrangement (layout) of each device constituting the drive device 210 and the configuration of the counter gear pair CG corresponding to the transmission member 18 in FIG. This embodiment is the same as the embodiment shown in FIG. 42 except for the difference.
- the power distribution mechanism 16 functioning as a continuously variable transmission portion or a first transmission portion and the automatic transmission 17 2 functioning as a stepped transmission portion or a second transmission portion are also provided.
- the same effect as in the above-described embodiment can be obtained.
- the power distribution mechanism 16 and the automatic transmission 17 2 are not disposed on the same shaft center, so that the drive The dimension in the axial direction is reduced more. Therefore, in general, the drive unit can be placed laterally for FF vehicles and RR vehicles where the axial dimension of the drive unit is limited by the vehicle width, that is, the first shaft center 14 c and the second shaft center 32 c are the vehicle width.
- FIG. 50 is a skeleton view for explaining the configuration of a driving device 220 according to another embodiment of the present invention.
- This embodiment differs from the embodiment shown in FIGS. 47 to 49 in the arrangement of the second electric motor M 2 and the arrangement of the second planetary gear unit 26.
- the arrangement (layout) will be described with reference to FIG.
- the second electric motor M 2 is disposed on the first shaft center 14 c adjacent to the power center gear pair CG at a position opposite to the first planetary gear set 24 with respect to the counter gear pair CG, It is connected to the counter drive gear CG1, which is the transmission member on the one axis 14c side.
- the second planetary gear train 26 is disposed adjacent to the counter gear pair CG at a position opposite to the second clutch C 2 and the third planetary gear train 28 with respect to the counter gear pair CG.
- the configurations of the power distribution mechanism 16 and the automatic transmission 172 and their connection relationship are the same as those of the embodiment shown in FIGS. 47 to 49, and the engagement table for the embodiment of FIG.
- the alignment chart is the same as the engagement table in FIG. 48 and the alignment chart in FIG. 49, respectively.
- the power distribution mechanism 16 functioning as a continuously variable transmission unit or a first transmission unit and the automatic transmission 17 2 functioning as a stepped transmission unit or a first transmission unit ,
- the power distribution mechanism 16 and the automatic transmission 17 2 are not arranged on the same axis, so that the driving device 220 The axial dimension of More shortened. Therefore, in general, the drive unit can be placed horizontally for FF vehicles and RR vehicles, where the size of the drive unit in the axial direction is restricted by the vehicle width. It can be suitably used as a drive device that can be mounted in parallel with. Further, since the second electric motor M2 is disposed on the first shaft center 14c, the dimension of the second shaft center 32c in the axial direction is reduced.
- FIG. 51 shows a seesaw switch 44 as a shift state manual selection device for switching the shift state of the drive device 10 by manual operation.
- the automatic switching control operation of the speed change state of the drive device 10 based on the change of the vehicle state is described based on the relationship diagram of FIG. 8 or FIG.
- the shift state of the drive device 10 may be controlled by manual switching.
- the switching control means 50 switches the transmission mechanism 10 between the continuously variable transmission state and the stepped state preferentially in accordance with the selection operation of the switch 44 to the stepless transmission state or the stepped variable state. Switch to the shifting state.
- the user may manually select the driving device 10 to be in the continuously variable transmission state. If it is desired to improve the feeling due to the change in the engine rotation speed accompanying the shift of the transmission, the drive device 10 may be manually selected so as to be in the stepped shift state.
- the switch 44 When the switch 44 is provided with a neutral position in which neither the continuously variable transmission nor the stepped transmission is selected, when the switch 44 is in the neutral position, that is, when the user desires.
- the shift state is not selected or when the desired shift state is automatic switching, the automatic switching control operation of the driving state of the driving device 10 may be performed.
- FIG. 52 is a functional block diagram for explaining a main part of a control function of another embodiment of the electronic control unit 40.
- the stepped shift control means 52 controls a shift operation by the transmission mechanism 10 based on a predetermined control variable from a relationship stored in advance.
- Figure 53 is a diagram illustrating a stepped shift control map (shift diagram) 162 which is an example of the relationship used for such control.
- the shift control means 54 for example, the vehicle speed V and the vehicle load, that is, the automatic transmission unit 2 are obtained from the stepped shift control map 16 0 output torque (output torque) T. It is determined whether or not to perform the shift of the automatic transmission section 20 based on the vehicle state indicated by, and the automatic shift control of the automatic transmission section 20 is executed.
- the gear position of the automatic transmission unit 20 to be shifted is determined, and the automatic transmission control of the automatic transmission unit 20 is executed.
- the vehicle speed V and the output torque T of the automatic transmission unit 20 are set.
- the shift control of the stepped transmission is defined as a function of UT or vehicle load. Then, it is mapped as shown in FIG. 53 as the same control function as the continuously variable transmission region of the continuously variable transmission section.
- the hybrid control means 15 56 controls the engine 8 in an efficient operation range in the stepless speed change state of the transmission mechanism 10, that is, the differential state of the differential section 11, similarly to the above-described hybrid control means 52. While operating, the drive force distribution between the engine 8 and the second electric motor M2 and the reaction force generated by the first electric motor Ml and / or the second electric motor M2 are changed to optimize the differential.
- the gear ratio a0 as the electric continuously variable transmission of the unit 11 is controlled.
- the required output of the driver is calculated from the accelerator pedal operation amount Acc and the vehicle speed V, and the required driving force is calculated from the required output of the driver and the required charging value, and the engine speed N calculated E and the total output, based on the total output and the engine rotational speed N E, the power generation of the first electric motor M 1 and / or the first electric motor M 2 to control the Enjin 8 so as to obtain the engine output Control the amount.
- the hybrid control unit 156 executes the control in consideration of the gear position of the automatic transmission unit 20 in order to improve fuel efficiency.
- the differential unit 11 functions as an electric continuously variable transmission.
- the hybrid control means 156 is designed to achieve both driving performance and fuel economy during continuously variable speed running.
- the target transmission of the total transmission ratio a T of the transmission mechanism 10 is determined so that the engine 8 can be operated along the stored optimal fuel efficiency curve of the engine 8, and the differential section is determined so that the target value can be obtained.
- the gear ratio ⁇ 0 of 11 is controlled, and the toe gear ratio T is controlled within a changeable range of the gear ratio, for example, within a range of 13 to 0.5.
- the hybrid control means 156 supplies the electric energy generated by the first electric motor Ml to the power storage device 60 and the second electric motor M2 via the inverter 580.
- the main part of the driving force of the engine 8 is mechanically transmitted to the transmission member 18, but a part of the driving force of the engine 8 is consumed for power generation of the first electric motor M 1 and is converted there into electric energy,
- the electric power is supplied to the second electric motor M2 or the first electric motor Ml via the inverter 58, and transmitted to the transmission member 18 from the second electric motor M2 or the first electric motor Ml.
- a part of the driving force of the engine 8 is converted into electric energy by the equipment related to the generation of electric energy and consumed by the second electric motor M2, and the electric energy is converted into mechanical energy. Is configured.
- the hybrid control means 15 6 drives the electric motor only, for example, only the second electric motor M 2 by the electric CVT function (differential action) of the differential section 11 irrespective of the stop or idle state of the engine 8.
- the motor can be run as a power source.
- the hybrid control means 15 56 controls the first motor M 1 and / or the first motor M 2 even when the differential portion 11 is in the stepped shift state (constant shift state) with the engine 8 stopped. It can be operated to drive the motor.
- the hybrid control means 156 is configured to drive a plurality of driving power sources, that is, the engine 8, the first motor M1, and the first motor M2 based on a predetermined control variable based on a predetermined relationship.
- Fig. 54 shows the engine running area and the motor for switching the driving power source for vehicle running between the engine 8 and the electric motors M1 and M2 (in other words, for switching between engine running and motor running).
- Driving power source selection control map (Driving power source switching diagram) This is an example of 164. Also, the solid line in Fig. 54 On the other hand, a hysteresis is provided as shown by an alternate long and short dash line.
- the drive power source selection control map 64 in FIG. 54 is, for example, stored in advance in the relation storage means 154, and the hybrid control means 156 is configured as shown in FIG. Drive power source selection control map 1 6 4 to vehicle speed V and output torque ⁇ .
- the motor travel area is determined based on the vehicle state indicated by ⁇ , and the motor travel is executed.
- the motor running by the hybrid control means 156 has a relatively low output torque ⁇ ⁇ ⁇ ⁇ ⁇ which is generally considered to have a lower engine efficiency than the high torque range, as is apparent from FIG. ⁇
- the output torque ⁇ ⁇ ⁇ to the vehicle speed V and the automatic transmission portion 2 0 in the present embodiment functions and to drive amount source selection control of the vehicle load is defined.
- the control function is mapped as shown in FIG. 54 as the same control function as the continuously variable lock area of the continuously variable transmission unit.
- FIG. 55 is a diagram corresponding to the differential portion 11 in the alignment chart of FIG. FIG. 55 shows an example of the state of the differential section 11 in the continuously variable transmission state when the motor is running. For example, while the vehicle is running with the rotation torque of the second motor ⁇ 2, the engine rotation speed ⁇ ⁇ (the rotation speed of the first carrier CA1) becomes substantially zero with respect to the rotation speed of the first motor ⁇ corresponding to the vehicle speed V.
- the first electric motor M1 is controlled, for example, idling at a negative rotation speed so as to be maintained.
- the speed increasing side gear position determining means 158 determines which of the switching clutch C 0 and the switching brake B 0 is to be engaged when the transmission mechanism 10 is set to the stepped shifting state. For example, in accordance with the stepped shift control map ⁇ ⁇ 62 shown in FIG. 53 previously stored in the relation storage means 154 based on the vehicle state, the shift speed of the transmission mechanism 10 to be shifted is increased. It is determined whether or not the gear is a higher gear, for example, a fifth gear.
- the switching control unit 159 selectively switches the differential unit 11 between a continuously variable transmission state and a constant transmission ratio state based on a predetermined control variable based on a predetermined relationship.
- the transmission mechanism 10 is selected between a continuously variable transmission state and a stepped transmission state.
- FIG. 56 shows that in order to selectively switch the differential unit 11 between the continuously variable transmission state and the constant gear ratio state (the transmission mechanism 10 is switched between the continuously variable transmission state and the continuously variable transmission state).
- An example is a pre-stored relationship having a boundary line between a stepless control region and a stepped control region for selectively switching between the shaft and a shaft indicating the vehicle speed V and an output torque T which is a driving force related value.
- the switching control map 16 6 in FIG. 56 is, for example, stored in advance in the relation storage means 15 4, and the switching control means 159 is a switching control map 1 shown in FIG. 6
- the state to be switched of the differential unit 11 is determined, that is, the differential unit 11 is set to the continuously variable transmission state. It is determined whether the differential portion 11 is in the control region or in the stepped control region in the constant speed ratio state, and the differential portion 11 is selectively switched to either the continuously variable speed state or the constant speed ratio state. Switch.
- the speed change state of the transmission mechanism 10 to be switched is determined, that is, the transmission mechanism 10 is in the continuously variable control region where the transmission mechanism 10 is in the continuously variable transmission state, or the transmission mechanism 10 is set in the stepped transmission state.
- the transmission mechanism 10 is selectively switched between the continuously variable transmission state and the continuously variable transmission state by determining whether the current state is within the stepped control region.
- the vehicle speed V and the output torque of the automatic transmission unit 20 ⁇ are defined as a function of ⁇ or a vehicle load.
- the vehicle speed V and the output torque of the automatic transmission unit 20 ⁇ is defined as a function of ⁇ or a vehicle load.
- the stepped shift control means 152 at this time executes the automatic shift control of the automatic transmission section 20 according to, for example, the stepped shift control map 62 shown in FIG. 53 stored in the relation storage means 154 in advance.
- FIG. 2 shows a combination of operations of the hydraulic friction engagement devices selected in the shift control at this time, that is, C0, C1, C2, 'B0, B1, B2, and B3. Snow That is, the entire transmission mechanism 10, that is, the differential section 11 and the automatic transmission section 20 function as a so-called stepped automatic transmission, and the speed is achieved according to the engagement table shown in FIG.
- the transmission mechanism 10 as a whole has a low speed side gear ratio smaller than 1.0, that is, a so-called overdrive.
- the switching control means 159 switches the differential portion 11 so that the differential portion 11 can function as a subtransmission having a fixed speed change ratio 0, for example, a speed change ratio 0 of 0.7.
- a command to release 0 and apply the switching brake B 0 is output to the hydraulic control circuit 42. If the speed-up gear position determining means 158 determines that the transmission is not at the fifth speed, the transmission mechanism 10 as a whole has a reduction gear stage with a speed ratio of 1.0 or more.
- the switching control means 159 engages the switching clutch C 0 and the switching brake B so that the differential portion 11 functions as a subtransmission with a fixed gear ratio 0, for example, the gear ratio 0.
- a command to release 0 is output to the hydraulic control circuit 42.
- the transmission mechanism 10 is switched to the stepped shift state by the switching control means 60, and is selectively switched to one of the two types of shift steps in the stepped shift state.
- the moving section 11 functions as a sub-transmission
- the automatic transmission section 20 in series with the sub-transmission functions as a stepped transmission, so that the entire transmission mechanism 10 functions as a so-called stepped automatic transmission. .
- the transmission mechanism 10 sets the continuously variable transmission state as a whole.
- a command to release the switching clutch C 0 and the switching brake B 0 is output to the hydraulic control circuit 42 so that the differential portion 11 is in a continuously variable transmission state and is capable of continuously variable transmission.
- a signal for permitting the hybrid control is output to the hybrid control means 156, and a signal for fixing the gear to the preset stepless speed is output to the stepped shift control means 152.
- the automatic speed change is performed by the stepped variable speed control means 152 by an operation excluding the engagement of the switching clutch C 0 and the switching brake B 0 in the engagement table of FIG.
- the speed change ratio between the respective gears is continuously variable, so that the speed change mechanism 10 as a whole is in a stepless speed change state, and the toe speed ratio ⁇ T can be obtained steplessly.
- the switching control means 159 controls the switching brake B 0 and the switching clutch C 0 as the differential state switching device to engage or disengage, thereby causing the power distribution mechanism 16 to perform the differential operation. Switches between the state and the non-differential state.
- FIG. 57 is a comprehensive control map 1668 that includes the stepped shift control map 161 and the driving force source selection control map 1664 and the switching control map 1666.
- the stepped speed change control map 16 2, the driving force source selection control map 16 4, and the off control map 16 6 preferably have a vehicle speed V and a vehicle load. That is, the output torque of the automatic transmission 20.
- ⁇ is a common control variable (parameter).
- the stepped shift control unit 15 2, the hybrid control unit 15 6, the speed-up gear stage determination unit 15 8, and the switching control unit 15 9 are stored in the relation storage unit 15 4 in advance.
- the overall control map which is the relationship between the vehicle and the vehicle, is a common control variable, such as the vehicle speed V and the output torque of the automatic transmission section 20. Based on ⁇ , it performs total shift control and drive power source selection control. By using the common control variables as described above, it is possible to suitably perform the total shift control that selectively executes the stepless shift control and the stepped shift control, and the total drive control including the drive power source removal control. be able to.
- the relationship storage means 154 stores the vehicle speed V and the output torque of the automatic transmission section 20.
- ⁇ As a one-variable function of ⁇ , switching areas such as a continuously variable transmission state and a stepped transmission state (locked state) are defined as simply as possible.
- a function map based on the vehicle speed V which determines the advantages and disadvantages of continuously variable transmission and the power range that affects the physique of the electric motor, and the determination of the advantages and disadvantages of continuously variable transmission in terms of transmission efficiency, enables various controls. Easy to execute It has a configuration.
- the stepped speed change control map 16 2, the driving force source selection control map 16 4, and the switching control nup 16 6 are shown as one comprehensive control map 16 8.
- these maps are specifically stored in the relationship storage means 154 as different maps as shown in FIGS. 53, 54, and 56.
- FIG. 58 is a diagram exemplifying a stepped shift control map (shift diagram) 171 which is an example of the relationship for the power mode used in the stepped shift control by the stepped shift control means 152.
- Fig. 59 shows the driving power source selection control map (driving power source switching diagram) 1 72 which is an example of the relationship for the power mode used for the driving power source selection control by the hybrid control means 156.
- FIG. FIG. 60 is a power mode comprehensive control map 174 that includes the stepped shift control map 171, the driving force source selection control map L 72, and the switching control map 166.
- the stepped shift control means 15 2 the hybrid control means 15 56, the speed-up gear position determination means 15 58, and the switching control means 15 9
- the vehicle speed V and the output torque T 0UT of the automatic transmission unit 20 are determined from the power mode relationship stored in the relationship storage unit 154 according to the selection operation.
- the above control is performed based on the above.
- the relationships shown in FIGS. 53, 54, 56, and 57 are maps for the normal mode, and the switching control map 1666 shown in FIG. 56 corresponds to the normal mode and the power mode. Commonly used. That is, the stepped transmission diagram and the driving force source switching diagram are defined in separate maps, and are selected in combination when switching between the normal mode and the power mode.
- the relation storage means 154 may store a plurality of maps as relations used for the stepped shift control, the driving force source selection control, and the switching control, respectively.
- FIG. 53 and FIG. 58 will be described in detail. These figures are shift diagrams (relationships) stored in advance in the relationship storage means 154 on which the automatic transmission unit 20 determines the shift.
- the axis indicating the vehicle speed V and the output torque T which is the vehicle load. It is an example of a shift diagram (shift map) composed of two-dimensional coordinates orthogonal to an axis indicating UT .
- the solid lines in FIGS. 53 and 58 are the upshift lines, and the alternate long and short dash lines are the downshift lines.
- the broken line 58 indicates the judgment vehicle speed V1 and the judgment output torque T1 for judging between the stepped control region and the stepless control region by the switching control means 159.
- the broken lines in FIGS. 53 and 58 indicate the high vehicle speed determination line, which is a series of the determination vehicle speed V1, which is a preset high-speed traveling determination value for determining the high-speed traveling of the hybrid vehicle, and the hybrid vehicle
- a driving force-related value related to the driving force for example, a judgment output torque T that is a preset high-output traveling judgment value for judging a high-output traveling in which the output torque ⁇ ⁇ ⁇ of the automatic transmission section 20 is a high output.
- a high-power running determination line, which is a series of 1, is shown. Further, as indicated by a two-dot chain line with respect to the broken lines in FIGS.
- FIGS. 53 and 58 show the vehicle speed V and the output torque ⁇ ⁇ ⁇ ⁇ including the determination vehicle speed V 1 and the determination output torque T 1 as parameters, and the switching control means 60 sets the stepped control region.
- FIG. 8 is a switching diagram (switching map, relation) stored in advance for determining which of a stepless control region and a stepless control region.
- the shift map may be stored in advance in the relation storage means 154 as a shift map including the switching diagram.
- this switching diagram may include at least one of the determination vehicle speed V1 and the determination output torque T1, or may be stored in advance as one of the vehicle speed V and the output torque ⁇ ⁇ ⁇ . It may be a switched line.
- the shift diagram, the switching diagram, and the like are not used as maps, but as a determination formula for comparing the actual vehicle speed V with the determination vehicle speed V1, a determination formula for comparing the output torque ⁇ ⁇ ⁇ with the determination output torque T1, and the like. It may be stored as '
- the vehicle load is a parameter corresponding to the driving force of the vehicle on a one-to-one basis.
- the vehicle load includes not only the driving torque or driving force of the driving wheel 38 but also the output torque T 0 UT of the automatic transmission unit 20, for example.
- engine torque T E the vehicle acceleration or, for example, the accelerator opening or throttling opening (or intake air quantity, air-fuel ratio, fuel injection amount) the actual value of such engine torque T E that is calculated by the engine speed N E Alternatively, it may be an estimated value such as a required driving force calculated based on the driver's accelerator pedal operation amount or throttle opening.
- the driving torque is the output torque T.
- the determination vehicle speed V1 is set such that the transmission mechanism 10 is in the stepped transmission state in the high-speed traveling so that the fuel efficiency is not deteriorated when the transmission mechanism 10 is in the stepless transmission state. It is set to be.
- the determination torque T1 is used to reduce the size of the first motor M1 without making the reaction torque of the first motor M1 correspond to the high output range of the engine during high-power running of the vehicle. This is set according to the characteristics of the first electric motor M1 that can be disposed with the maximum output of electric energy from M1 reduced.
- the high torque region where the output torque ⁇ ⁇ is equal to or higher than the predetermined judgment output torque T 1 or the vehicle speed V is equal to or higher than the predetermined judgment vehicle speed V 1
- the stepped variable speed running is performed at the time of high drive torque at which the engine 8 has a relatively high torque, or at the time of relatively high vehicle speed, and the stepless speed change is performed.
- the running is performed at a low driving torque at which the engine 8 has a relatively low torque, or at a relatively low vehicle speed of the vehicle speed, that is, in a normal output range of the engine 8.
- the boundary between the stepped control region and the stepless control region in FIG. 56 corresponds to the high vehicle speed judgment line that is a series of high vehicle speed judgment values and the high output traveling judgment line that is a series of high output traveling judgment values. are doing.
- the transmission mechanism 1 for example, during low-medium-speed running and low-medium-power running of the vehicle, the transmission mechanism 1
- the transmission mechanism 10 operates as a stepped transmission.
- the output of the engine 8 is driven exclusively through the mechanical power transmission path in a stepped shifting state
- the conversion loss between the driving force transmitted to the wheel 38 and the electric power generated when the transmission is operated as an electric continuously variable transmission and electric energy is suppressed, and the fuel efficiency is improved.
- output torque ⁇ is also provided.
- the transmission mechanism 10 is in a stepped shift state in which it operates as a stepped transmission, and the engine is exclusively driven by a mechanical power transmission path.
- the area in which the output of No. 8 is transmitted to the drive wheels 38 to operate as an electric continuously variable transmission rod is the low-medium-speed running and low-medium-power running of the vehicle.
- the maximum value of the electric energy transmitted by the first electric motor # 1 can be reduced, so that the first electric motor # 1 or a driving device of a vehicle including the same can be further downsized.
- the driver's demand for driving force is more important than the demand for fuel efficiency, so that it can be switched from a continuously variable speed state to a stepped speed change state (constant speed change state).
- FIG. 1 0 rhythmic change of the engine rotational speed New E accompanying the change which the transmission of the engine rotational speed New E accompanying Appushifu Bok in stepped automatic shifting control, as shown in views.
- FIG. 8 is also a conceptual diagram for creating the broken line in FIG.
- the dashed line in FIG. 56 is a switching line that has been replaced on an orthogonal two-dimensional coordinate system based on the relationship diagram (map) in FIG. But also.
- the switching control means 15 9 in the motor running mode in which the motor runs only using the electric motor, for example, only the second electric motor # 2, as the driving force source by the electric CVT function (differential action) of the differential section 11 1 Will be described in detail.
- the switching control means 159 is, as shown in FIG. 55, for example, a hybrid control means 159 for suppressing drag of the inactive engine 8 and improving fuel efficiency. 6 by switching the power component Rooster himself mechanisms 1 6 As can be maintained Enjin rotation N E substantially zero to the differential state.
- the switching control means 159 changes the power distribution mechanism 16 even when the stepped variable speed traveling, that is, the non-differential state of the power distribution mechanism 16 is selected in the switch 48 during the motor traveling. Switch to the active state.
- the driving force source selection control map 1664 in Fig. 54 the motor running is originally performed in the low load range, so the higher the driving torque, the more the engine rotation accompanying the shift of the stepped transmission becomes. It is considered that the feeling cannot be improved due to the change in speed, and the expectation of the user is low. Therefore, the switching control means 159 dares to switch the power distribution mechanism 16 to the differential state even when the non-differential state is selected in the switch 44 for the purpose of improving the fuel consumption during motor running.
- the power distribution mechanism 16 is switched to the non-differential state. Since during Meaux evening running as before mentioned engine N E is held substantially zero, the switching control means 1 5 9 switching the power distributing mechanism 1 6 as shown in FIG. 3 or FIG. 5, for example Bed
- the non-differential state by the engagement of the rake B 0 or the engagement of the switching clutch C 0, the rotation speed of the first sun gear S 1 using the first electric motor M 1 in the differential state of the power distribution mechanism 16.
- the engine speed NE is increased by increasing the rotation speed of the first sun gear S 1 more quickly than when the engine speed is increased.
- the gear ratio control means (hereinafter referred to as gear ratio control means) 16 1 for continuously variable transmission is a vehicle in which the differential unit 11 which is a continuously variable transmission unit is operated for continuously variable transmission. If it is determined that the vehicle is in the continuously variable speed running state, the efficiency of the first motor M 1 is not determined. ? The gear ratio of the automatic transmission section 20 and its differential section 1 so that optimum fuel efficiency can be obtained based on the efficiency M2 of the M1 and the second motor M2 and the efficiency of the automatic transmission section 20. The gear ratio of 1 is controlled.
- the output shaft rotation speed of the differential unit 11 (the input shaft rotation speed of the automatic transmission unit 20) for the purpose of preventing the reverse rotation of the first motor Ml even during steady running at relatively high speed ⁇
- the automatic transmission section 20 as a stepped transmission section so that ⁇ is suppressed
- the speed ratio a of the differential unit 11 is changed according to the speed ratio a.
- the gear ratio control means 16 1 derives the target of the engine 8 from the engine fuel efficiency map 1 67 as shown in FIG. 61 previously stored in the relation storage means 154 based on the actual accelerator opening degree Acc. and determines the engine rotational speed N EM, the gear ratio ⁇ 0 gear ratio ⁇ the difference.
- pivot portion 1 1 of the automatic shifting portion 20 for obtaining the target engine rotational speed N EM and based on the actual vehicle speed V Control to determine. That is, as shown in Fig. 61, one of the isohorsepower curves L3a corresponding to the output of the engine 8 to satisfy the driver's required driving force based on the actual accelerator opening Acc is well known.
- the engine speed corresponding to the intersection C a of the determined iso-horsepower curve L 3 a and the optimum fuel efficiency curve L 2 determined from the relationship is determined as the target engine speed N EM .
- the total speed ratio of the transmission mechanism 10 for obtaining the target engine speed NEM based on the target engine speed NEM and the actual vehicle speed V is represented by, for example, the relation shown in equation (1). Determined by the staff.
- the relationship between the rotation speed N 0UT ( rp.m ) of the output shaft 22 of the automatic transmission unit 20 and the vehicle speed V (km / h) is as follows: the gear ratio of the final reduction gear is f, and the drive wheels 38 Assuming that the radius is r, the relationship is as shown in equation (2).
- speed ratio candidate Nea a of the automatic transmission portion 20 capable of generating a speed N E, rb etc., for example, the actual from the relationship between equations (1) and the engine rotational speed as shown in (2) N E and the vehicle speed V Are set based on the vehicle speed V of the vehicle.
- the speed ratio candidate values a a based on, for example, the total speed ratio a T for obtaining the target engine rotational speed N EM and the speed ratio candidate values a a and a b from the relationship shown in Expression (3), the speed ratio candidate values a a The vehicle fuel consumption Mfce is calculated for each b, and the gear ratio candidate value that minimizes the vehicle fuel consumption is determined as the gear ratio a of the automatic transmission unit 20.
- Speed change ratio ⁇ 0 of the differential portion 1 1 is determined from the toe Yuru gear ratio ⁇ T for obtaining the target Enjin rotational speed N EM.
- Fee is the fuel consumption rate
- PL is the instantaneous required power
- 7? Ele is the efficiency of the electric system
- 77CVT is the transmission efficiency of the differential section 11
- kl is the electric path of the differential section 11
- the transmission ratio k2 is the transmission ratio of the mechanical path of the differential section 1 1,? ? gi is the transmission efficiency of the automatic transmission 20.
- the efficiency 7? Ml of the first motor Ml and the efficiency? M2 of the second motor M2 are used to obtain the target engine speed NEM for each of the speed ratio candidate values 7a and ab.
- Differential part for obtaining total gear ratio a T 1 Based on the rotational speed determined for each gear ratio candidate Oa, r Ob, and the output torque required for each motor to generate the required driving force Desired.
- the above kl is usually a value near 0.1
- k2 is usually a value near 0.9, but it is a function of the required output, so it is changed according to the required output.
- the transmission efficiency ?? gi of the automatic transmission unit 20 is a function of the transmission torque Ti, the rotation speed Ni of the rotating member, and the oil temperature H that differ for each gear stage i, for example, as shown in Expression (4). .
- the fuel consumption rate Fce the instantaneous required power PL
- Mfce FceXPL / ((?? M 1 X ?? M 2 X ?? eleXkl '
- FIG. 62 is a flow chart showing the main part of the control operation of the electronic control unit 40, that is, the switching control operation of the transmission mechanism 10 in the embodiment of FIG. 52, for example, about several milliseconds to several tens of milliseconds. It is executed repeatedly with a very short cycle time.
- the processing of SA 6 and below is executed, but if the determination of SA 2 is denied, the actual driving torque or hybrid torque of the hybrid vehicle is determined in SA 3. It is determined whether or not the output torque ⁇ ⁇ ⁇ ⁇ of the automatic transmission unit 20 has become a high torque (high driving force) that is equal to or greater than a predetermined determination torque T 1. If the determination of SA 3 is affirmative, the processing of SA 6 and below is executed, but if the determination of S 3 is denied, at SA 4, the electric energy of the first motor M1 is reduced.
- Deterioration of equipment related to the electrical path is caused by, for example, the first motor Ml, the second motor M2, and the inverter motor.
- Power storage device 60 function degradation of the transmission path connecting them, such as failure (file) or malfunction due to low temperature, is determined.
- the SA 5 which shift stage the transmission mechanism 10 is set to is stored in the relation storage unit 15 4.
- the determination is made according to the stored stepped shift control map 162 as shown in FIG.
- S7 corresponding to the speed increasing gear position determining means 158, the speed to be shifted by the transmission mechanism 10 determined in the above S6 is the speed increasing gear position, for example, the fifth speed gear position. Is determined.
- the differential unit 11 is switched so as to function as a fixed transmission ratio 0, for example, the auxiliary transmission with the transmission ratio 0 of 0.7.
- a command to release the changeover clutch C 0 and apply the switching brake B 0 is output to the hydraulic control circuit 42.
- a signal is output to the hybrid control means 156 to prohibit or prohibit the hybrid control or the stepless speed change control, and the stepped speed change control means 152 determines in S6
- a signal is output that permits the automatic transmission section 20 to automatically shift to the fourth gear so that the entire transmission mechanism 10 is set to the fifth gear according to the set shift speed.
- SA 9 If the determination in SA 7 is rejected, in SA 9, switching is performed so that the differential portion 11 can function as a fixed transmission ratio 0, for example, a subtransmission with a transmission ratio 0 of 1.
- a command to engage the clutch C 0 and release the switching brake B 0 is output to the hydraulic control circuit 42.
- a signal is output to the hybrid control means 1556 to prohibit or inhibit the hybrid control or the stepless speed change control, and the stepped speed change control means 15 1st to 4th gears according to the shift speed A signal is output to permit automatic shifting of automatic shifting section 20 in the range of gears.
- the differential section 11 functions as a subtransmission
- the automatic transmission section 20 in series functions as a stepped transmission, so that the entire transmission mechanism 10 is stepped.
- the transmission is brought into a gear shift state and functions as a so-called stepped automatic transmission.
- SA6, SA8, and SA9 are used in the operation of the stepped transmission control means 152
- SA1, SA5, SA8, and SA9 are used in the operation of the hybrid control means 1.56, and SA5
- SA8 and SA9 correspond to the operation of the switching control means 159, respectively.
- the differential portion 11 that can be switched between the continuously variable speed change state and the constant speed ratio state that can be operated as an electric continuously variable transmission has a predetermined relationship.
- a transmission mechanism 10 capable of switching between a continuously variable transmission state operable as an electric continuously variable transmission and a stepped transmission state operable as a stepped transmission, and a vehicle speed and a predetermined speed.
- Switching control means 159 for selectively switching the transmission mechanism 10 to any one of the continuously variable transmission state and the stepped transmission state based on the vehicle load or the output torque of the vehicle drive device. It is possible to provide a control device that suitably performs shift control in the transmission mechanism 10 that can operate as an electric continuously variable transmission. In addition, it controls a speed change mechanism 10 that can be switched between a continuously variable speed state and a constant speed state that can operate as an electric continuously variable transmission, and controls the vehicle speed and the vehicle rain load or the output torque of the vehicle drive device.
- a first region in which the transmission mechanism 10 is in the continuously variable transmission state and a first region in which the transmission mechanism 10 is in the constant speed transmission state are defined switching control maps.
- Transmission mechanism that can operate as an electric continuously variable transmission It is possible to provide a control device that suitably performs the shift control in 10 by a simple program.
- a transmission mechanism 10 capable of switching between a continuously variable transmission state operable as an electric continuously variable transmission and a continuously variable transmission state operable as a stepped transmission; a vehicle speed and a vehicle load; A first region where the transmission mechanism 10 is in the continuously variable transmission state, and a second region where the transmission mechanism 10 is in the stepped transmission state are defined as control parameters using the output torque of Switching control map 16 6, and switching control means 1 for selectively switching the transmission mechanism 10 to one of the stepless transmission state and the stepped transmission state based on the switching control map 16 6. And a control device that appropriately performs the speed change control in the transmission mechanism 10 that can be selectively operated as an electric continuously variable transmission and a stepped transmission by using a simple program. can do.
- the differential mechanism 16 is provided in the differential mechanism 16 and is configured to be in a differential state in which the continuously variable transmission portion can be made differential as an electric continuously variable transmission and a locked state in which the differential is non-differential.
- a differential state switching device for selectively switching 16 that is, a switching brake B 0 and a switching clutch C 0, and a shift line for switching the shift speed by predetermined control parameters are defined, and the stepped automatic The stepped shift control map 162 used for the shift control of the transmission unit 20, the differential region in which the differential state is set by the same control parameters as the stepped shift control map 162, and the non-differential state.
- a non-differential region is defined and includes a switching control map 166 used for switching control between the differential state and the non-differential state by the differential state switching device. Shift control of the step-type automatic transmission unit 20 and the electric continuously variable transmission and stepped
- the present invention can provide a control device that suitably performs the shift control in the transmission mechanism 10 that can be selectively operated as a transmission by a simple program. Also, the differential mechanism 16 can be used as an electric continuously variable transmission.
- a differential state switching device that selectively switches between a differential state in which the differential state is enabled and a locked state in which the differential state is non-differential, that is, a switching brake B0 and a switching clutch C0, and a predetermined control parameter,
- the region for determining at least one driving force source for generating driving force among the engine 8, the first motor Ml, and the second motor M2 is determined by a plurality of regions according to the determined driving force source.
- the driving force source selection control map 167 which is determined and used for the selection control of the driving force source, and the same control as the driving force source selection control map 67, And a non-differential region to be set to the non-differential state, and a switching control map for controlling the switching between the differential state and the non-differential state by the differential state switching device. Accordingly, it is possible to provide a control device that suitably performs the shift control and the selection control of the driving force source in the transmission mechanism 10 operable as an electric continuously variable transmission by a simple program.
- a transmission mechanism 10 capable of switching between a continuously variable transmission state operable as an electric continuously variable transmission and a stepped transmission state operable as a stepped transmission; 8.A plurality of regions for determining at least one driving force source that generates a driving force among the first motor M1 and the first motor M2 are defined in plurality according to the determined driving force source, and the driving force source is defined.
- the drive power source selection control map 16 4 used for the selection control of the above and the same control parameters as those of the drive power source selection control map 64 are used to set the continuously variable transmission region to be in the continuously variable transmission state and the stepped transmission state.
- a stepped shift region, and a switching control map 166 used for switching control between the stepless shift state and the stepped shift state by the transmission mechanism 10. Transmission and stepped transmission Can it to provide a control device that suitably performed by simple program selection control of the shift control and the driving force source in the selectively actuatable transmission mechanism 1 0 Te.
- control parameters are the vehicle speed V and the vehicle load, that is, the output torque ⁇ of the automatic transmission unit 20, the transmission mechanism 1 operable as an electric continuously variable transmission is provided.
- Shift control at 0 can be performed in a practical manner by a simple program
- FIG. 63 is a functional block diagram for explaining a main part of a control function of another embodiment of the electronic control unit 40.
- the fuel efficiency curve selection means 280 considers fuel efficiency or energy efficiency and drivability.
- the fuel consumption curve map (hereinafter referred to as the fuel consumption map) of the engine 8 stored in advance in the fuel consumption curve storage means 2 82 so that the operation of the engine 10 optimal for the vehicle is obtained, that is, the fuel consumption curve Select
- the fuel efficiency map may be changed in real time, or may be a map obtained by experimentally obtaining and storing the map in advance.
- the optimal fuel efficiency curve of the engine 8 shown by the broken line in FIG. 64 is an example of the fuel efficiency map.For example, a solid line such as a contour line in the orthogonal two-dimensional coordinates of the axis indicating the engine speed NE and the axis indicating the engine torque Te is shown.
- This optimal fuel economy curve is also a series of points representing the minimum fuel economy operating point.
- the above fuel efficiency curve shows the same engine fuel consumption rate fe connecting the points.
- the equal fuel consumption rate curve shows that the engine fuel consumption rate fe is smaller toward the inner circumference, that is, the fuel consumption is better.
- a high fuel efficiency area is formed in the middle speed and high load area of the engine 8.
- the fuel efficiency map is basically determined based on the specifications of the engine 8, but is affected by vehicle conditions, for example, internal factors or external factors of the engine 10. For this reason, the fuel efficiency map can be changed based on internal and external factors such as engine water temperature, catalyst temperature, engine operating oil temperature, or combustion state, that is, the air-fuel ratio indicated by lean stoichiometry. Therefore, the fuel efficiency curve storage means 282 stores a plurality of types of fuel efficiency maps, or I ⁇ changes the stored one type of fuel efficiency map in real time based on the internal and external factors. As a result, the fuel efficiency curve selecting means 280 selects .1 from a plurality of types of fuel efficiency maps based on the internal and external factors.
- engine fuel consumption rate fe fuel consumption F / engine power P e It is represented by Therefore, the smaller the fuel consumption F and the larger the engine output Pe, the smaller the engine fuel consumption rate fe, that is, the better the fuel economy. In other words, whether the fuel consumption is good or bad can be compared with the magnitude of the engine output Pe obtained when the fuel consumption F is the same, so that the engine 8 can be operated along the optimal fuel consumption curve.
- the fuel consumption map in the continuously variable transmission state of the transmission mechanism 10 is illustrated by a broken line shown as the optimum fuel consumption curve, and the fuel consumption map in the stepped transmission state is illustrated by a solid line.
- the gear ratio is continuously changed so that the engine speed NE follows the optimum fuel consumption curve with respect to the vehicle speed V.
- the engine speed NE is fixed with respect to the vehicle speed V because the speed ratio changes stepwise. Therefore, each fuel efficiency map is shown as in FIG.
- the fuel efficiency map in the case of the continuously variable shift state is set to be the same as the optimal fuel efficiency curve shown by the broken line.
- this is an example for clarifying the difference between the case of the continuously variable shift state and the case of the stepped shift state. Yes, they do not necessarily have to match.
- the engine output P ecvt obtained in the continuously variable speed running in which the vehicle travels in the continuously variable shift state and the engine output P obtained in the stepped variable speed running in which the vehicle travels in the stepped shifting state under the rain When eu is compared with, for example, the same engine speed NE, the case of continuously variable speed running closer to the optimal fuel consumption curve becomes larger. That is, the stepless engine output p ecv t> the stepped engine output P eu is uniform.
- the transmission efficiency 77 is higher in the case of the stepped shift state in which the mechanical transmission path is exclusively formed than in the case of the electric stepless shift state.
- the fuel efficiency of a continuously variable speed running is not always higher than that of a stepped speed running.
- a continuously variable speed drive with high transmission efficiency is more advantageous in terms of fuel economy, but a continuously variable speed drive, which can use a fuel efficient region at medium to low speeds, especially when viewed from the engine alone. This is advantageous in fuel efficiency. Therefore, in this embodiment, the stepless transmission efficiency? Cvt X stepless system efficiency 7? Sysc and stepped transmission efficiency?? U X stepped system efficiency?? Sysu are calculated, and their traveling efficiency is mainly considered transmission efficiency. Stepless taking into account the effect on fuel efficiency due to the difference in running efficiency 77 1.
- the above stepless system efficiency 77 sysc is the electric system such as charging / discharging efficiency of power storage device 60, electric wire efficiency, and power consumption of inverter 58 when the transmission mechanism 10 is an electric continuously variable transmission.
- the oil pump and the energy consumption of auxiliary equipment, etc. and the stepped system efficiency 7? Sysu can be obtained from the oil pump loss, the energy consumption of auxiliary equipment, etc.
- constant values that are obtained and stored in advance through experiments or the like are used.
- the fuel efficiency curve selection means 280 selects the fuel efficiency maps of the engine 8 in the continuously variable speed travel and the stepped speed travel previously stored in the fuel efficiency curve storage means 82 described above. For example, the stepless engine output Pecvt and the stepped engine output Peu at the current vehicle state, that is, the vehicle speed V, are read from the fuel efficiency map shown in FIG. In other words, the engine output P As a result, the vehicle fuel consumption rate fs is calculated based on the fuel consumption rate fe of the engine 8.
- Fig. 65 shows the relationship (map) stored in advance in which the transmission efficiency 7? Is set using the vehicle speed V and the driving force-related values related to the vehicle's driving force as parameters, and changes according to the vehicle speed V. That is, this is an example in which the stepless transmission efficiency 7? Cvt, which becomes higher as the vehicle speed V becomes higher, is shown as a broken line A, and the stepped transmission efficiency is shown as a solid line A.
- the line B shows the transmission efficiency 77 when the driving force-related value, for example, the output torque, Tout, for each line A increases.
- transmission efficiency? It can be seen that? Changes according to the change of the output torque Tout, that is, it increases as the torque increases.
- the transmission efficiency calculating means 284 calculates the stepless transmission efficiency? CVt and the stepped transmission efficiency 7U based on the actual vehicle state, for example, the vehicle speed V and the driving force-related value from the relationship previously stored. Will be determined.
- cvt is the transmission efficiency of an electric continuously variable transmission including the efficiency of the first motor M1 and the first motor M2 and mainly considering the loss due to the electric path, for example, 0
- the stepped transmission efficiency 7U is assumed to be, for example, about 0.92 as the transmission efficiency of a stepped transmission having a mechanical transmission path, but in the present embodiment, it varies depending on the vehicle state. That is, it is stored in advance as a function that changes based on the vehicle state.
- the driving force-related value includes, as described above, not only the driving torque or driving force at the driving wheels 38, but also, for example, the output torque Tout of the automatic transmission unit 20, the engine torque Te, the vehicle acceleration, and the accelerator opening, for example.
- the actual value such as the engine torque Te calculated by the degree or throttle opening (or intake air amount, air-fuel ratio, fuel injection amount) and the engine speed NE, the driver's accelerator pedal operation amount or throttle opening It is a parameter that corresponds to the vehicle driving force on a one-to-one basis, such as an estimated value of the required driving force calculated based on the degree, a detection value of a torque sensor, etc. This is when the driving force-related values such as the accelerator opening and the throttle opening increase other than when the output torque Tout increases.
- fuel injection amount, intake air amount, negative pressure, etc. are also parameters related to high torque.
- the running resistance of this vehicle is rolling resistance, air resistance, acceleration resistance, etc.
- the rolling resistance and air resistance are related to the vehicle speed, and the acceleration resistance is related to the driving force related value. It can be said that the running resistance is the driving force-related value.
- the fuel consumption rate calculating means 286 sequentially calculates the fuel consumption rate f s of each vehicle in the continuously variable speed traveling and the stepped variable speed traveling.
- the fuel consumption rate calculating means 2886 is a stepless engine output P ecvt and a stepped engine output Peu read by the optimum fuel consumption curve selecting means 80 and the stepless running calculated by the transmission efficiency calculating means 2884. Based on the efficiency 7? Tcvt and the stepped traveling efficiency 7? Tu, and the fuel consumption F detected by the fuel consumption sensor 290, the fuel consumption rate f scvt of the vehicle running continuously variable speed fuel consumption F / (stepless engine output Pecvt x stepless running efficiency ??
- the fuel consumption rate calculating means 2886 calculates the fuel consumption rate f s of the vehicle based on the vehicle state, for example, the vehicle speed V, the driving force-related value, and the like.
- the fuel consumption rate calculating means 2886 calculates the fuel consumption rate fs of the vehicle by setting the fuel consumption F to a constant value, that is, a constant stored in advance. Good.
- the fuel consumption rate fs of the vehicle is not always accurate and should be referred to as a "fuel consumption rate-related value", and the fuel consumption sensor 290 does not need to detect the fuel consumption F.
- the switching control means 50 in the present embodiment sequentially determines whether the fuel consumption rate is higher in the continuously variable transmission state or the stepped transmission state, and based on the determination, the transmission mechanism 10 is disabled. The mode is selectively switched between a stepped shifting state and a stepped shifting state. Further, the switching control means 50 includes a shift state fuel efficiency determining means 2.88, and based on the determination results sequentially output by the shift state fuel efficiency determining means 288, shifts the speed change mechanism 10 to the continuously variable shift state and the active state. It selectively switches to one of the stepped shifting states.
- the shift state fuel consumption determination means 288 determines whether the continuously variable shift travel or the stepped shift travel has a higher fuel consumption rate, that is, a better fuel economy, by, for example, the continuously variable shift calculated by the fuel consumption rate calculating means 286.
- the fuel consumption rate f scvt of vehicle rain in variable speed running and the fuel consumption rate f su of stepped variable speed running vehicle are sequentially compared and determined.
- the fuel consumption rate fs of the vehicle is calculated by the fuel consumption rate calculating means 2886 with the fuel consumption F as a constant value.
- the shift state fuel efficiency determining means 288 may compare the stepless drive wheel output P wcvt with the stepped drive wheel output P wu and determine that the larger one is the higher fuel efficiency.
- the stepless drive wheel output Pwcvt and the stepped drive wheel output Pwu need only be calculated by the fuel consumption rate calculation means 2886 as values related to the fuel consumption rate fs of the vehicle.
- FIG. 66 is a flowchart showing a main part of the control operation of the electronic control unit 40 of the present embodiment, that is, a switching control operation of the shift state of the transmission mechanism 10 based on the fuel efficiency of the vehicle. It is executed repeatedly with an extremely short cycle time of about 10 msec.
- step SB 1 corresponding to the optimum fuel consumption curve selecting means 280 (hereinafter, the steps are omitted), a fuel consumption map of the engine 8 stored in the fuel consumption curve storage means 82 in advance is selected.
- the stepless engine output P ecvt and the stepped engine output P eu based on the vehicle state, that is, the vehicle speed V, are read from the map.
- This fuel efficiency map is changed by internal and external factors of the engine 8, such as the engine water temperature, the engine operating oil temperature, or the combustion state, that is, the air-fuel ratio indicated by lean or stoichiometric.
- the transmission mechanism 10 The continuously variable transmission efficiency 7? Cvt in the stepped shifting state is obtained based on the vehicle state, for example, the actual vehicle speed V and the driving force-related value from the relationship stored in advance shown in FIG. 65, for example.
- the vehicle state for example, the actual vehicle speed V and the driving force-related value from the relationship stored in advance shown in FIG. 65, for example.
- stepless transmission efficiency 7? Cvt and the stepless system efficiency 7? Sy sc stored as a constant value and the stepless running efficiency ?? tcvt stepless transmission efficiency "cvt X stepless system efficiency 77 sysc) is calculated.
- SB 3 corresponding to the fuel consumption rate calculating means 86 the continuously variable shift traveling is performed based on the continuously variable engine output P ecvt read in SB 1 and the continuously variable traveling efficiency tcvt obtained in SB 2 above.
- Fuel consumption rate f scvt ⁇ fuel consumption F / (stepless engine output P ecvt x stepless running efficiency ?? tcvt) ⁇
- the stepped transmission efficiency 77 u in the stepped shift state of the transmission mechanism 10 is determined, for example, from the relationship stored in advance shown in FIG. For example, it is obtained based on the actual vehicle speed V and the driving force related value.
- the stepped transmission is performed based on the stepped engine output P eu read in SB1 and the stepped traveling efficiency 7? Tu obtained in SB4.
- SB 6 corresponding to the shift state fuel efficiency determination means 88, it is determined whether the continuously variable speed travel or the stepped speed travel is the fuel consumption rate fs of the vehicle, that is, the fuel efficiency is good, for example, in the above SB 3 and SB 5.
- the determination is made by comparing the calculated fuel consumption rate f scvt of the vehicle traveling continuously variable speed with the fuel consumption rate f SU of the vehicle traveling continuously variable speed.
- variable speed mechanism 10 A command to release switching clutch C 0 and switching brake B 0 to be in a state is output to hydraulic control circuit 42.
- hybrid A signal for permitting the hybrid control is output to the control means 52, and a signal for fixing to the preset stepless speed change gear is output to the stepped shift control means 54, Alternatively, a signal is output which permits automatic shifting in accordance with a shift line which is stored in advance in the shift diagram storage means 56 and is used as a basis for the shift determination of the automatic shifting portion 20 in the shift diagram shown in FIG. 12, for example. .
- the switching type transmission unit 11 functions as a continuously variable transmission
- the automatic transmission unit 20 in series with it functions as a stepped transmission.
- the rotation speed input to the automatic transmission portion 20, that is, the transmission member, for each of the first, second, third, and fourth speeds of the automatic transmission portion 20 The rotation speed of 18 is steplessly changed, and a stepless speed ratio width is obtained for each gear. Therefore, the speed ratio between the gears is continuously variable continuously, so that the total speed ratio ⁇ ⁇ of the entire speed change mechanism 10 can be continuously obtained.
- the variable speed mechanism 10 In other words, if it is determined in S ⁇ 6 that the fuel economy in the step-variable traveling is good, in S ⁇ 8 corresponding to the switching control means 50, the variable speed mechanism 10 And outputs a signal to the hybrid control means 5 to disallow (prohibit) the hybrid control or the stepless shift control so that the hybrid control means 5 is set to the stepped shift state. In other words, the shift control at the time of the stepped shift set in advance is permitted. At this time, the stepped shift control means 54 executes automatic shift control according to, for example, the shift diagram shown in FIG. 12 stored in the shift diagram storage means 56 in advance. FIG.
- the switching clutch C0 is engaged, so that the switching transmission unit 11 functions as a subtransmission with a fixed transmission ratio a0 of 1.
- the switching brake B0 is engaged instead of the engagement of the switching clutch C0, so that the switchable transmission portion 11 has a fixed gear ratio 0 of 0.7. It functions as an auxiliary transmission.
- the entire transmission mechanism 10 including the switchable transmission unit 11 and the automatic transmission unit 20 functioning as the auxiliary transmission functions as a so-called stepped automatic transmission.
- the transmission mechanism 10 that constitutes an electric continuously variable transmission that is generally considered to have good fuel efficiency is switched to a shift state in which traveling is advantageous in terms of fuel efficiency of the vehicle, so that fuel efficiency is further improved.
- a shift state switching type capable of switching between a continuously variable shift state operable as an electric continuously variable transmission and a stepped shift state operable as a stepped transmission.
- the switching control means 50 determines whether the transmission mechanism 10 is in the continuously variable transmission state or the stepped transmission state. ), The vehicle can be selectively switched between the continuously variable transmission state and the stepped transmission state, so that appropriate driving with further improved fuel efficiency can be obtained.
- the fuel consumption rate f is sequentially calculated from the vehicle state, for example, the vehicle speed V and the driving force-related value by the fuel consumption rate calculating means 2886 (SB3.SB5).
- the fuel consumption rate f in the continuously variable transmission state and the stepped transmission state is calculated in real time, and the transmission state of the transmission mechanism 10 is set to a fuel-efficient traveling state.
- the fuel consumption rate f is calculated based on the fuel consumption rate fe of the engine 8 obtained from, for example, the relationship stored in advance shown in FIG.
- the fuel consumption rate fs of the vehicle is appropriately calculated by the calculation means 2886.
- the fuel consumption rate f calculated from the vehicle state is calculated by the transmission efficiency calculation means 2884 (SB 2 , SB 4), the transmission efficiency? 7 from the engine to the driving wheels 38 is calculated, and the fuel consumption rate f is appropriately calculated by the fuel consumption rate calculation means 286.
- the transmission efficiency 7? Changes depending on the running resistance of the vehicle, for example, high-torque traveling such as traveling on an uphill road, and the fuel consumption rate calculating means based on the transmission efficiency 7?
- the fuel consumption rate f is properly calculated from 286.
- the transmission efficiency 77 varies depending on the vehicle speed V, and the fuel consumption rate f is appropriately calculated by the fuel consumption rate calculating means 286 based on the transmission efficiency.
- the transmission efficiency? 7 is determined by a driving force-related value of the vehicle. What changes, its transmission efficiency?
- the fuel consumption rate f is appropriately calculated by the fuel consumption rate calculation means 2886 based on?.
- the power distribution mechanism 16 is a single pinion type first planetary gear train 24 having the first carrier CA 1, the first sun gear S 1, and the first ring gear R 1 as three elements. Therefore, there is an advantage that the power distribution mechanism 16 can be configured simply and with a small axial dimension. Further, a transmission clutch C 0 and a first sun gear S 1 for interconnecting the first sun gear S 1 and the first carrier CA 1 are transmitted to the power distribution mechanism 16. Since the switching brake B 0 connected to the case 12 is provided, the switching control means 50 easily controls the continuously variable transmission state and the stepped transmission state of the transmission mechanism 10.
- the automatic transmission unit 20 is interposed between the power distribution mechanism 16 and the drive wheels 38 in series, and the speed ratio of the power distribution mechanism 16, that is, the switching type variable Since the total speed ratio of the speed change mechanism 10 is formed based on the speed ratio of the speed portion 11 and the speed ratio of the automatic speed portion 20, the speed ratio of the automatic speed portion 20 is used. Accordingly, a wide range of driving force can be obtained, so that the efficiency of the continuously variable transmission control, that is, the hybrid control in the switch-type transmission unit 11 is further enhanced.
- the switchable transmission section 11 when the transmission mechanism 10 is in the stepped transmission state, the switchable transmission section 11 functions as if it were part of the automatic transmission section 20 and the transmission ratio is 1 There is an advantage that the fifth speed, which is a smaller overdrive gear, can be obtained.
- the first electric motor M 2 is connected to the transmission member 18 which is the input rotating member of the automatic transmission unit 20
- the first motor M 2 is connected to the output shaft 22 of the automatic transmission unit 20.
- the second motor M can be reduced in size because the output can be improved with a low torque.
- FIG. 67 is a functional block diagram illustrating a main part of the control function of the electronic control unit 40, which is another embodiment of FIG.
- FIG. 68 shows the shift diagram storage means 56 which is the basis for the shift determination of the automatic shifting portion 20 in advance. It is a shift diagram (shift map or relation) remembered, and is an example of a shift diagram composed of two-dimensional coordinates having a vehicle speed V and an output torque Tout as a driving force related value as parameters.
- the solid line in Fig. 68 is the upshift line, and the dashed line is the downshift line.
- FIG. 68 is the same as that shown in FIG. 12 except that the stepless control region for bringing the transmission mechanism 10 into the stepless shift state and the stepped control region to put the stepless shift state into the stepped shift state.
- the difference is that the vehicle is set in consideration of which traveling mode has a good fuel consumption rate fs of the vehicle.
- the vehicle fuel consumption rate f s is good in running in either the continuously variable transmission state or the stepped transmission state with the vehicle speed V and the driving force-related value such as the output torque Tout as parameters.
- a previously stored switching diagram switching map in which a stepless control region for setting the speed change mechanism 10 to the stepless speed change state and a stepped control region for setting the stepwise speed change state to the stepless speed change state are set. Or relationship).
- the setting of those areas that is, the dashed line in FIG. 68 and the boundary between the stepless control area and the stepped control area shown by the two-dot chain line in which hysteresis is provided with respect to the dashed line are the transmission mechanism 10.
- FIG. 68 is also a diagram showing the relationship when the shift map and the switching map are configured with the same two-dimensional coordinates, and this switching map is stored in advance in the shift diagram storage means 56 together with the shift map. Will be. It should be noted that the shift map and the switching map are formed of different two-dimensional coordinates, and that the switching map is stored in another storage means other than the shift diagram storage means 56, for example, a switching diagram storage means (not shown). It may be stored in advance.
- the switching control means 50 of the present embodiment replaces the switching of the shift state of the transmission mechanism 10 based on the fuel consumption rate f of the vehicle in the above-described embodiment with, for example, a shift line as shown in FIG. Based on the current vehicle state, that is, the actual vehicle speed V and the output torque Tout, from the switching map stored in advance in the figure storage means 56, the transmission mechanism 10 is switched between the continuously variable transmission state and the stepped transmission state. Selectively switch between crabs.
- the continuously variable transmission state or the continuously variable transmission state depends on whether the fuel consumption rate f is good in the continuously variable transmission state or the continuously variable transmission state.
- the speed change mechanism 10 is controlled based on the vehicle state, for example, the actual vehicle speed V and the output torque Tout. Is selectively switched to any one of the above, so that the speed change state of the transmission mechanism 10 can be easily switched to a fuel-efficient traveling state, thereby further improving fuel efficiency.
- Embodiment 22-FIG. 69 is a functional block diagram illustrating a main part of a control function by the electronic control unit 40, and is another embodiment of FIG.
- the switching control means 50 further includes a high vehicle speed determination means 62, a high output traveling determination means 64, and an electric path function determination means 66, and the shift is controlled based on predetermined conditions of the vehicle.
- the switching of the speed change state of the mechanism 10 is performed based on the fuel consumption rate f of the vehicle in the above-described embodiment, and the speed change mechanism 10 is switched to the stepped speed change state.
- the high vehicle speed determining means 62 determines whether or not the actual vehicle speed V of the hybrid vehicle has reached a high vehicle speed equal to or higher than the determination vehicle speed V 1 which is a preset high speed traveling determination value for determining high speed traveling.
- the high-power travel determining means 64 is a preset high-power travel determination value for determining a high-power travel based on a drive power-related value related to the drive power of the hybrid vehicle rain, for example, the output torque Tout of the automatic transmission unit 20. Judgment is made as to whether or not high torque (high driving force) running with the judgment output torque T 1 or more.
- the high-power running determination means 64 determines the high-power running of the vehicle based on the driving force-related information that directly or indirectly indicates the driving force of the vehicle. 6 is a failure determination condition for determining that the function of the control device for bringing the transmission mechanism 10 into a continuously variable transmission state is determined.
- the function of equipment related to the electric path from the generation of electric energy in the first electric motor M1 to the conversion of the electric energy into mechanical energy is reduced, that is, the first electric motor Ml, the second electric motor M1, Judgment is made based on the failure of the motor M2, the inverter 58, the power storage device 60, the transmission line connecting them, the failure (file) or the deterioration of the function due to low temperature, or the occurrence of the malfunction.
- the determination vehicle speed V1 is determined by changing the transmission state of the transmission mechanism 10 to the above-described state so as to suppress deterioration of fuel efficiency when the transmission mechanism 10 is set to the continuously variable transmission state at high speed traveling. Switching the transmission mechanism 10 to the stepped shift state without using the vehicle's fuel consumption rate f in the example is clearly advantageous in terms of fuel efficiency. Value.
- the determination torque T1 is set to, for example, the first motor M1 in order to reduce the size of the first motor M1 without making the reaction torque of the first motor M1 correspond to the high-power region of the engine during high-power running of the vehicle. This is set according to the characteristics of the first electric motor M1 that can be disposed with the maximum output of electric energy from the electric motor M1 reduced.
- the determination torque T 1 is determined based on the vehicle that needs to switch the transmission mechanism 10 to the stepped transmission state without switching the transmission state of the transmission mechanism 10 based on the vehicle fuel consumption rate f in the above-described embodiment.
- High-power running of the vehicle that is, a high-power running of the vehicle that exceeds the engine output limit value determined based on the rated output of the motor that cannot operate the transmission mechanism 10 as an electric continuously variable transmission is determined. Is stored in advance. .
- the switching control means 50 includes a high vehicle speed determination by the high vehicle speed determination means 62 as a predetermined condition, a high output travel determination by the high output travel determination means 64, that is, a high torque determination, and an electrical control by the electric path function determination means 66. If at least one of the determinations of the path dysfunction has occurred, it is determined that the transmission is in the stepped shift control region in which the transmission mechanism 10 is switched to the stepped shift state, and the hybrid control means 52 is operated in the same manner as in the above-described embodiment. On the other hand, a signal for disabling or prohibiting the hybrid control or the stepless shift control is output, and the stepwise shift control means 54 is permitted to perform the shift control at the time of the preset stepwise shift. I do.
- the transmission control mechanism 50 switches the transmission mechanism 10 to the step-variable shift state based on the predetermined condition.
- the shift type transmission unit 11 is made to function as an auxiliary transmission, and the self-clouding transmission unit 20 in series functions as a stepped transmission. By doing so, the entire transmission mechanism 10 functions as a so-called stepped automatic transmission. .
- the switching control means 50 determines which of the switching clutch CO and the switching brake B 0 is to be engaged, for example, by the high output traveling determination by the high output traveling determining means 64.
- the engagement of the switching clutch C 0, or The engagement of the switching brake B0 may be determined by a high-speed running determination by the high vehicle speed determining means 62. However, if the fifth gear is selected even during high-power running, engagement of the switching brake B0 is determined.
- FIG. 70 shows a switching map stored in advance in the shift diagram storage means 56 for determining which of the continuously variable shift travel and the stepped shift travel has better fuel economy.
- This switching map has a relationship corresponding to the boundary between the stepless control area and the stepped control area in the orthogonal two-dimensional coordinates of the axis indicating the engine speed NE and the axis indicating the engine torque TE. .
- the switching control means 50 determines the actual engine rotational speed NE from the switching map of FIG. 70 in place of the switching of the speed change mechanism 10 to the stepped shifting state based on the predetermined condition of the vehicle.
- the vehicle state represented by the engine speed NE and the engine torque TE is within the stepped control area, that is, the area in which the vehicle should be forcibly switched to the stepped shift state regardless of the fuel consumption determination.
- the speed change mechanism 10 may be switched to the stepped speed change state by determining whether the speed is within the range. That is, the relationship shown in FIG. 70 is such that the engine torque TE corresponding to the region where the determination vehicle speed V1 and the determination torque T1 or more are high torque regions where the engine torque TE is a predetermined value TE1 or more, and the engine speed NE is preset.
- High engine speed region where engine output calculated from engine torque TE and engine speed NE is higher than a predetermined value NE 1 or higher, that is, the fuel consumption rate of the vehicle in the above embodiment.
- a region where the transmission mechanism 10 needs to be set to the stepped shift state clearly without being based on f is obtained in advance through experiments and stored.
- the switching control means 50 sets the transmission mechanism 10 to the stepped shifting state when the actual vehicle speed exceeds the predetermined vehicle speed V1. Therefore, for example, if the actual vehicle speed V exceeds the determination vehicle speed V1 for determining high-speed running of the vehicle where it is clearly advantageous in terms of fuel efficiency to switch the transmission mechanism 10 to the stepped shifting state, only mechanical The output of the engine is transmitted to the drive wheels through the power transmission path, and the conversion loss between power and electricity that occurs when operating as an electric continuously variable transmission is suppressed, so that fuel efficiency is improved.
- the switching control means 50 sets the transmission mechanism 10 to the step-variable shifting state when the actual output torque Tout 'exceeds a predetermined determination output torque T1. Therefore, for example, the actual output torque Tout may exceed the engine output limit value determined based on the rated output of the first electric motor M1 that cannot operate the transmission mechanism 10 as an electric continuously variable transmission.
- Judgment for judging the high-power running of the vehicle When the high-output running exceeds the output torque T1, the output of the engine 8 is transmitted to the driving wheels 38 exclusively through the mechanical power transmission path, and the transmission mechanism 1 When 0 is operated as an electric continuously variable transmission, low-medium-power driving is performed exclusively, so that the maximum value of the electric energy to be generated by the first motor M 1 can be reduced, that is, the first motor M 1 1)
- the output capacity to be protected can be reduced
- the first electric motor Ml and the second electric motor M2, or a drive device of a vehicle including the first electric motor Ml and the second electric motor M2 are further downsized.
- the switching control means 50 sets the transmission mechanism 10 to a state in which the failure determination condition for determining the deterioration of the function of the control device for bringing the transmission mechanism 10 into the electrically stepless variable speed state is satisfied. Since step 10 is a stepped transmission state, even if the transmission mechanism 10 is not set to a stepless transmission state, it is set to a stepped transmission state. Vehicle running is ensured.
- Example 2 3
- FIG. 71 is a function block diagram for explaining a main part of a control function according to another embodiment of the electronic control unit 40.
- the stepped shift control means 54 is, for example, a shift diagram shown by a solid line and a one-dot chain line in FIG.
- (Shift map) shows vehicle speed V and output torque of stepped transmission section 20 ⁇ . Based on the vehicle state represented by ⁇ , it is determined whether or not to perform the shift of the stepped transmission portion 20.
- the automatic transmission control of the stepped transmission unit 20 is executed by determining the gear position to be shifted by the stepped transmission unit 20.
- the hybrid control means 52 operates the engine 8 in an efficient operation range in the continuously variable transmission state of the transmission mechanism 10, that is, the differential state of the differential section 11,
- the electric motor continuously variable transmission of the differential unit 11 by changing the distribution of the driving force between the second motor M 2 and the first motor M 1 and optimizing the reaction force generated by the power generation. Controls 0.
- the required output of the driver is calculated from the accelerator pedal operation amount Acc and the vehicle speed V
- the required driving force is calculated from the required output of the driver and the required charging value
- the engine rotational speed is calculated.
- calculating the N E and total output, the total output and based on the engine rotational speed N E to control the first power generation amount of the motor M 1 and controls the engine 8 to obtain the Enji emissions output .
- the hybrid control means 52 executes the control in consideration of the gear position of the step-variable transmission portion 20 in order to improve fuel efficiency and the like.
- the rotational speed of the power transmitting member 1 8 determined by the engine rotational speed N E and vehicle speed V and the step-variable shifting portion 2 0 of the shift speed determined in order to operate the engine 8 in an operating region at efficient
- the differential section 11 functions as an electric continuously variable transmission.
- the hybrid control means 52 enables the engine 8 to operate in accordance with the previously-stored optimal fuel efficiency curve of the engine 8 that achieves both drivability and fuel efficiency during continuously variable speed running.
- a target value of the total speed ratio a T of the transmission mechanism 10 is determined, and the speed ratio a 0 of the differential unit 11 is controlled so as to obtain the target value. Control is performed within a range, for example, within a range of 13 to 0.5.
- the hybrid control means 52 supplies the electric energy generated by the first electric motor Ml to the power storage device 60 and the second electric motor M2 through the inverter 58, so that the main part of the power of the engine 8 is provided. Is mechanically transmitted to the transmission member 18, but a part of the power of the engine 8 is consumed for power generation of the first electric motor M 1 and is converted into electric energy there, and the electric energy is transmitted through the inverter 58. It is supplied to the second motor M2 or the first motor M1, and is supplied from the second motor M2 or the first motor M1. It is transmitted to the transmission member 18.
- a part of the power of the engine 8 is converted to electric energy by the related equipment from the generation of this electric energy to the consumption by the second electric motor M2, and the electric energy is converted to mechanical energy.
- the electric power and the electric power are configured.
- the hybrid control means 52 allows the electric motor to run all the time by using the electric CVT function of the differential unit 11, for example, using only the second electric motor M2 as a driving power source, regardless of whether the engine 8 is stopped or in the idle state. be able to. Furthermore, even if the differential section 11 is in the stepped shift state (constant shift state) with the engine 8 stopped, the first motor M 1 and / or the second motor M 2 can be operated to run overnight.
- the hybrid control means 52 performs regenerative braking control for adjusting the amount of power generated by the electric motors M 1 and / or M 2 based on, for example, the vehicle speed and / or the amount of braking operation during deceleration driving or braking operation. Execute. At this time, electric energy generated from the electric motors M 1 and / or M is stored in the power storage device 60 through the inverter 58.
- Fig. 54 shows the engine driving area and motor driving for switching the driving force source between the engine 8 and the electric motors M1 and M2, that is, switching between engine driving and motor driving.
- a pre-stored relationship that has a border with the region
- FIG. 3 is an example of a driving force source switching diagram (driving force source map) formed by a two-dimensional coordinate having a vehicle speed V and an output torque T OUT as a driving force related value as parameters.
- a hysteresis is provided as shown by a chain line with respect to the solid line in FIG.
- the driving force source switching diagram of FIG. 54 is stored in advance in, for example, the shift diagram storage means 56.
- the engine efficiency is generally relatively low compared to the high torque range, as is apparent from FIG. It is executed when ⁇ or when the vehicle speed is relatively low, that is, in a low load range.
- the hybrid control means 52 controls the differential operation of the differential section 11 in order to suppress dragging of the engine 8 that is not operating due to fuel cut and improve fuel efficiency during the motor running.
- approximately zero i.e. the engine rotational speed New E by Maintained at a value that is determined engine rotational speed N E and a value for example zero close to zero or zero.
- the first electric motor M1 is controlled at a negative rotation speed, for example, idling, so as to be maintained at substantially zero.
- the speed-increasing-side gear position determining means 62 switches the shift mechanism when the transmission mechanism 10 is set to the stepped shift state.
- the speed to be shifted by the speed change mechanism 10 is a speed-up side gear stage, for example, a fifth speed stage. It is determined whether or not.
- the switching control means 50 obtains the vehicle speed V and the output torque ⁇ ⁇ ⁇ ⁇ from the switching diagram (switching map, relationship) shown in the dashed line and the two-dot chain line in FIG.
- the speed change mechanism 10 to be switched is determined based on the vehicle state indicated by ⁇ , that is, the speed change mechanism 10 is in the continuously variable control region in which the speed change mechanism 10 is set to the stepless speed change state. It is determined whether the current state is within the stepped control region where the stepped shift state is set, and the transmission mechanism 10 is selectively switched between the stepless shift state and the stepped shift state.
- the switching control means 50 determines that the current state is within the stepped shift control region, the switching control means 50 outputs a signal to the hybrid control means 52 to disallow or prohibit the hybrid control or the continuously variable shift control.
- the stepped shift control means 54 is allowed to perform a shift control at the time of the stepped shift set in advance.
- the stepped shift control means 54 executes the automatic shift control of the stepped transmission section 20 according to, for example, the shift diagram shown in FIG. 12 stored in the shift diagram storage means 56 in advance.
- FIG. 2 shows a combination of operations of the hydraulic friction engagement devices selected in the speed change control at this time, that is, C0, C1, C2, B0, B1, B2, and B3. That is, the entire transmission mechanism 10, that is, the differential section 11 and the stepped transmission section 20 function as a so-called stepped automatic transmission, and the shift speed is achieved according to the engagement table shown in FIG.
- the switching control means 5.0 is provided with a differential ratio r 0 in which the differential portion 11 is fixed. For example, a command to release the switching clutch C0 and to apply the switching brake B0. Is output to the hydraulic control circuit 42 so that the transmission can function as an auxiliary transmission with a gear ratio 0 of 0.7. If it is determined by the speed-increasing gear position determining means 62 that the gear is not the fifth speed, a reduction gear position having a speed ratio of 1.0 or more is obtained as a whole of the transmission mechanism 10.
- the switching control means 50 engages the switching clutch C 0 and operates the switching brake B 0 so that the differential portion 11 can function as a subtransmission with a fixed transmission ratio 0, for example, the transmission ratio 0.
- the release command is output to the hydraulic control circuit 42.
- the transmission mechanism 10 is selectively switched to one of the two types of shift steps in the stepped shift state, and
- the moving unit 11 functions as a subtransmission, and the stepped transmission unit 20 in series functions as a stepped transmission, so that the entire transmission mechanism 10 functions as a so-called stepped automatic transmission.
- the switching control means 50 determines that the transmission mechanism 10 is within the continuously variable transmission control area for switching the transmission mechanism 10 to the continuously variable transmission state, the transmission control means 50 as a whole obtains the continuously variable transmission state.
- a command to release the switching clutch C 0 and the switching brake B 0 is output to the hydraulic control circuit 42 so that the moving unit 11 is in a continuously variable transmission state and is capable of continuously variable transmission.
- the hybrid control means 52 outputs a signal for permitting the hybrid control
- the stepped shift control means 54 outputs a signal for fixing the gear to a predetermined gear during the continuously variable shift.
- it outputs a signal that permits automatic shifting of the stepped transmission portion 20 in accordance with, for example, the shift diagram shown in FIG.
- the automatic transmission is performed by the stepped shift control means 54 by an operation excluding the engagement of the switching clutch C0 and the switching brake B0 in the engagement table of FIG.
- the differential unit 11 switched to the continuously variable transmission state by the switching control means 50 functions as a continuously variable transmission
- the stepped variable transmission unit 20 in series functions as a continuously variable transmission.
- an appropriate amount of driving force is obtained, and at the same time, the first, second, third, and fourth gears of the stepped transmission portion 20
- the rotational speed input to the stepped transmission portion 20 that is, the rotational speed of the transmission member 18 is steplessly changed, so that each gear stage has a stepless speed change ratio width.
- FIG. 12 will be described in detail.
- the solid line is an upshift line, and the dashed line-is a downshift line.
- the broken lines in FIG. 12 indicate the determination vehicle speed V1 and the determination output torque T1 for determining between the stepped control region and the stepless control region by the switching control means 50. That is, the dashed line in FIG. 12 relates to the high vehicle speed determination line, which is a series of the determination vehicle speed V1, which is a preset high-speed travel determination value for determining the hybrid vehicle traveling at high speed, and the driving force of the hybrid vehicle.
- Driving force related value for example, stepped transmission
- a high output travel determination line which is a series of a determination output torque ⁇ 1, which is a preset high output travel determination value for determining a high output travel in which ⁇ is a high output, is shown. Further, as indicated by a two-dot chain line with respect to the broken line in FIG. 12, hysteresis is provided for the determination between the stepped control region and the stepless control region. That is, in FIG. 12, the vehicle speed V and the output torque ⁇ OUT including the determination vehicle speed VI and the determination output torque T1 are set as parameters, and the switching control means 50 uses the switching control means 50 to select either the stepped control region or the stepless control region.
- FIG. 12 the vehicle speed V and the output torque ⁇ OUT including the determination vehicle speed VI and the determination output torque T1 are set as parameters, and the switching control means 50 uses the switching control means 50 to select either the stepped control region or the stepless control region.
- the shift map may be stored in advance in the shift diagram storage means 56 as a shift map including the switching diagram.
- the switching diagram may include at least one of the determination vehicle speed V 1 and the determination output torque T 1, or may be stored in advance using any one of the vehicle speed V and the output torque ⁇ as a parameter. It may be a switching line.
- the shift diagram and the switching diagram are stored not as a map but as a judgment formula for comparing the actual vehicle speed V with the judgment vehicle speed VI, a judgment formula for comparing the output torque TOUT with the judgment output torque T1, and the like. May be done.
- the determination vehicle speed V1 is set such that, for example, the speed change mechanism 10 in the high-speed running is controlled by the step-variable speed change so that the fuel efficiency is not deteriorated when the transmission mechanism 10 is set to the stepless speed change state. It is set to be in a state. Also, the judgment torque T 1 is to reduce the reaction torque of the first motor M1 in the high-power running of the vehicle without causing the reaction torque of the first motor M1 to correspond to the high-output region of the engine. No. 1 motor M that can be installed with a reduced maximum output of electric energy
- Figure 8 is an engine as a boundary for the area determining which of the engine rotational speed N E and engine torque T E and the step-variable control region and the continuously variable control region by the switching control means 5 0 as a parameter It is a switching diagram (switching map, relation) stored in advance in, for example, a shift diagram storage means 56 having an output line. Switching control means 5 0, based instead switching diagram of FIG 1 the switching diagram shown in FIG. 8 and the engine rotational speed N E and E down Jintoruku T E, those of the engine speed N E and the engine Torque T
- FIG. 8 is also a conceptual diagram for creating the broken line in FIG.
- the dashed line in FIG. 12 is also a switching line that has been rearranged on two-dimensional coordinates using the vehicle speed V and the output torque ⁇ as parameters based on the relationship diagram (map) in FIG.
- a high speed region is set as a stepped control region.
- the continuously variable speed running is at a low driving torque at which the engine 8 has a relatively low torque.
- it is executed at a relatively low vehicle speed, that is, in a normal output range of the engine 8.
- the predetermined value TE 1 or more high torque region where the engine Bok torque T E is set in advance, the engine speed N E preset predetermined value NE 1 or more high rotation region, or a high output region Enjin output is higher than the predetermined calculated on engine torque T E and Enjin speed N E, because it is set as a step-variable control region, the step-variable shifting travel of the engine 8 It is executed at a relatively high torque, a relatively high rotation speed, or a relatively high output, and the continuously variable speed running is performed when the engine 8 has a relatively low torque, a relatively low rotation speed, or a ratio. It is executed at a relatively low output, that is, in a normal output range of the engine 8.
- the boundary between the stepped control region and the stepless control region in FIG. 8 corresponds to the high vehicle speed determination line, which is a series of high vehicle speed determination values, and the high output travel determination line, which is a series of high output travel determination values. are doing. .
- the transmission mechanism 10 is set to a continuously variable transmission state to ensure the fuel efficiency of the vehicle, but the actual vehicle speed V is before.
- the transmission mechanism 10 is used as a stepped transmission. It operates in a step-variable transmission state, and the output of the engine 8 is transmitted to the driving wheels 38 through a mechanical power transmission path to operate as an electric continuously variable transmission. The conversion loss between them is suppressed, and the fuel efficiency is improved.
- output torque ⁇ is also used.
- the transmission mechanism 10 is in a stepped shift state in which the transmission mechanism 10 operates as a stepped transmission, and is exclusively driven by a mechanical power transmission path.
- the region where the output of the motor 8 is transmitted to the drive wheels 38 to operate as an electric continuously variable transmission is the low-to-medium-speed running and low-to-medium-power running of the vehicle.
- Energy In other words, the maximum value of the electric energy transmitted by the first electric motor # 1 can be reduced, so that the first electric motor # 1 or a vehicle driving device including the same can be further downsized.
- the driver's demand for driving force is more important than the demand for fuel efficiency, so that it can be switched from a continuously variable transmission state to a stepped transmission state (constant transmission state). . That this shall be the user, for example, rhythmic Enji down speed New E of Heni spoon due to the change which the transmission of the engine rotational speed New E accompanying Appushi shift in stepped automatic shifting control, as shown in FIG. 1 0 Consum.
- Fu Yu one Erukatsuto control means 3 7 for example, ⁇ Kuseru amount Acc during vehicle traveling, throttle opening 6 th, the required drive-force-related value either fuel injection quantity is zero
- the fuel supply to the engine 8 is cut off when a fuel power condition such as the continued deceleration running for a predetermined time or more is satisfied.
- the start of the engine 8 is controlled by the hybrid control means 5.
- the continuously variable-speed traveling determining means 380 determines whether or not the continuously variable-speed traveling of the vehicle has been selected. The determination is made based on the output of the switching control means 50 or the selection operation of the continuously variable shift state by the switch 44 or the like.
- the engine fuel efficiency map storage means 382 stores, for example, an engine fuel efficiency map shown in FIG. 61 in advance. This engine fuel efficiency map is a relationship determined in advance experimentally, and is shown in a contour line by a solid line set in two-dimensional coordinates of the engine rotation speed axis AX1 and the engine output torque axis AX2. It has an equal fuel consumption curve L1, an optimum fuel consumption curve L2 indicated by a broken line, and an equal horsepower curve L3 indicated by a dashed line curve.
- the optimum fuel efficiency curve L 2 indicates better fuel efficiency at the center, and the equal horsepower curve L 3 indicates higher horsepower at higher engine speeds.
- the motor efficiency map storage means 384 stores, for example, the efficiency map of the first motor M1 shown in FIG. 72 and the efficiency map of the second motor M2 shown in FIG. 73 in advance, for example. .
- the efficiency map of the first motor M1 and the efficiency map of the second motor M2 include an efficiency curve L4 indicated by a solid contour line in two-dimensional coordinates of the rotation speed axis and the output torque axis. ing. In the efficiency curve L4, the higher the center, the higher the efficiency.
- the speed ratio control means (hereinafter referred to as the speed ratio control means) 386 during the continuously variable speed travel is controlled by the continuously variable speed travel determining means 3800 so that the differential portion (the continuously variable speed portion) 11 is operated continuously.
- the optimum fuel efficiency is determined based on the efficiency M1 of the first motor M1 and the efficiency M2 of the second motor M2 and the efficiency of the stepped transmission unit 0.
- the speed ratio a of the stepped transmission portion 20 and the speed ratio a 0 of the differential portion (stepless transmission portion) 11 are controlled so as to obtain the following.
- the output shaft rotation speed of the differential section (stepless transmission section) 11 (stepless transmission section 20 Input shaft rotation speed)
- the speed ratio of the differential portion (stepless transmission portion) 11 according to the speed ratio a is adjusted.
- the gear ratio control means 3886 is used to calculate the target engine rotational speed N EM of the engine 8 based on the actual accelerator opening Acc from the engine fuel efficiency map shown in FIG. 61 stored in the engine fuel efficiency map storage means 382.
- target Enjin rotational speed calculation means 3 8 8 to determine the actual speed ratio ⁇ and the differential portion of the geared transmission unit 2 0 of order to obtain the target engine rotational speed N EM based on the vehicle speed V (stepless Transmission unit) 1 Determine gear ratio 0 for 1 Speed ratio determining means 390 which performs the transmission.
- the target engine rotational speed calculating means 388 uses one of the outputs corresponding to the output of the engine 8 to satisfy the driver's required driving force based on the actual accelerator opening Acc.
- the horsepower curve L 3 a. Is determined from a well-known relationship, and the engine speed corresponding to the intersection C a of the determined iso-horsepower curve L 3 a and the optimum fuel efficiency curve L 2 is the target engine speed N EM Is determined as
- the two speed ratio determining means 390 determines the total speed ratio of the transmission mechanism 10 for obtaining the target engine speed N EM based on the target engine speed N EM and the actual vehicle speed V: Is determined, for example, from the relationship shown in equation (1). Note that the relationship between the rotational speed N 0UT (r pm) of the output shaft 22 of the stepped variable speed section 20 and the vehicle speed V (km / h) is expressed as follows: If the radius of r is r, the relationship shown in Equation 2 is obtained.
- speed N EM gear ratio candidate value ⁇ a larger engine rotational speed N E can generate geared transmission unit 20, rb, etc., for example the engine rotational speed N E as shown in equation (1) and (1)
- Multiple types are set based on the actual vehicle speed V from the relationship with the vehicle speed V.
- the speed ratio candidate values a a and a b The vehicle fuel consumption Mfce is calculated every time, and the speed ratio candidate value that minimizes the vehicle fuel consumption is determined as the speed ratio a of the stepped transmission portion 20, and the speed ratio ⁇ and the target engine rotational speed are determined.
- Isseki bets for obtaining New Ipushironmyu Le gear ratio ⁇ ⁇ Toka et differential unit gear ratio ⁇ 0 (continuously variable transmission portion) 1 1 is determined.
- Fee is the fuel consumption rate
- PL is the instantaneous required power
- ? ? ele is the efficiency of the electrical system
- 77CVT is the transmission efficiency of the differential section 11
- kl is the transmission of the electrical path of the differential section 11
- the ratio, k2 is the transmission ratio of the mechanical path of the differential unit 11
- Gi is the transmission efficiency of the stepped transmission unit 20.
- M l and efficiency 77 M 2 of the second electric motor M 2 of the first electric motor M l of the formula (3) can each gear ratio candidate value ⁇ a, the target engine rotational speed N EM to rb-per
- the above kl is usually a value near 0.1
- k2 is usually a value near 0.9. However, since it is a function of the required output, it is changed according to the required output. Further, the transmission efficiency?
- the transmission torque T i is, for example, as shown in Expression (4), the transmission torque T i, the rotation speed Ni of the rotating member, the oil temperature H Is a function of. Constant values are used for the fuel consumption rate F ce, the instantaneous required power PL, the electric system efficiency 7? Ele, and the transmission efficiency r? CW of the differential unit 11 for convenience. Further, a constant value may also be used for the transmission efficiency 7? Gi or the like of the stepped transmission portion 20 as long as practical accuracy is not affected.
- the speed ratio control means 3886 controls the speed ratio of the stepped speed change portion 20 and the speed ratio of the differential portion (stepless speed change portion) 11 determined as described above by the stepless speed change running.
- the stepped shift control means 54 and the hybrid control means 52 are instructed so as to be respectively realized as the gear ratios at.
- the speed ratio control means 386 sets the speed change
- the stepped shift control means 54 is caused to perform a shift control by using, for example, an entire area stepped speed diagram shown in FIG. 74 stored in the diagram storage means 56.
- the shift to other words, as the operating point of Enjin is close to the optimum fuel consumption point engine speed N E becomes closer to the target engine rotational speed N EM
- the differential section (stepless transmission section) 11 is non-differential, the shift line is shifted to the lower vehicle speed side as compared with Fig.
- FIG. 75 is a flowchart for explaining a main part of the control operation of the electronic control unit 40 of the present embodiment, that is, a gear ratio control operation at the time of continuously variable speed running. It is executed repeatedly with a very short cycle time.
- FIG. 76 is a flowchart illustrating the gear ratio calculation routine of FIG. 75.
- steps corresponding to the continuously variable-speed traveling determining means 380 (hereinafter, the steps are omitted) In SC1, whether or not the vehicle is in the continuously variable-speed traveling state is determined by the switching control means 50. This is determined based on the output of the switch or the selection operation of the switch 4. If the determination of SC 1 is affirmative, the engine fuel efficiency map of FIG. 6 stored in advance in the engine fuel efficiency map storage means 82 is read in SC 2, and the motor efficiency map storage means 3 8 4 is read in SC 3. The efficiency map of the first motor M1 of FIG. 72 previously stored in FIG. 72 is read, and the efficiency map of the second motor M2 of FIG. 73 previously stored in the motor efficiency map storage means 384 in SC4. Is read.
- the speed ratio calculation routine of SC 5 and the speed ratio control output of SC 6 corresponding to the continuously variable speed running speed ratio control means 3886 are executed.
- FIG. 76 showing the speed ratio calculation routine of SC5
- the actual engine speed corresponds to the target engine speed calculating means 3888.
- SC52 and SC53 are executed.
- SC52 one of the equal horsepower curves corresponding to the output of the engine 8 to satisfy the driver's required driving force based on the actual accelerator opening Acc based on the equal horsepower curve L3 shown in FIG. 3a is determined.
- the determined iso-horsepower curve L3a indicates the target engine output for satisfying the driver's required driving force.
- SC53 based on the relationship shown in FIG.
- the engine speed corresponding to the intersection C a of the determined constant horsepower curve L 3 a and the optimum fuel efficiency curve L is defined as the target engine speed N EM. It is determined .
- SC54 corresponding to the two speed ratio determining means 3900 a transmission mechanism for obtaining the target engine speed NEM based on the target engine speed NEM and the actual vehicle speed V is provided.
- the total gear ratio of 10 is, for example, the relation shown in equation (1).
- the speed ratio of the stepped transmission section 20 and the differential section (stepless transmission section) 11 to obtain the total transmission ratio a T ( 770) of the transmission mechanism 10
- the ratio ⁇ 0 is determined from the equations (1), (2), (3), and (4) so that the transmission efficiency of the entire transmission mechanism 10 is maximized. .
- the engine fuel efficiency map shown in FIG. 61 stored in advance in the engine fuel efficiency map storage means 382 is read as in SC2.
- the gear position that is, the gear ratio a of the stepped transmission portion 20 that can make the engine rotational speed N E closest to the target engine rotational speed N EM obtained from the engine fuel efficiency map is: It is determined as the optimally geared stepped gear ratio or the optimally fueled geared gear ratio.
- the stepped shift control means 54 controls the shift so as to obtain the speed ratio a of the stepped transmission portion 20 determined as the above-mentioned optimal fuel-efficient stepped gear ratio.
- the gear ratio control means 3886 controls the stepped transmission.
- the speed ratio of the section 20 and the speed ratio of the differential section (the continuously variable transmission section) 11 are controlled so as to obtain the optimum fuel efficiency, the speed ratio is individually controlled.
- the optimum fuel efficiency of the vehicle can be obtained as compared with.
- the gear ratio a of the stepped transmission unit 0 is set so that the reverse rotation of the first motor Ml in the differential unit (stepless transmission unit) 11 1 as shown in FIG. 4 does not occur. By controlling, optimum fuel economy can be obtained for the whole vehicle.
- the speed ratio control means 3886 controls the stepped variable transmission portion 20. Since the gear ratio 0 of the differential section (stepless transmission section) 11 is changed according to the gear ratio, the stepped transmission section 20 and the differential section are designed to achieve high transmission efficiency as a whole vehicle. (Continuously variable section 4) Since the speed ratio of 11 is controlled, for example, in a relatively high-speed steady running, the reverse rotation of the first motor Ml is generated in the differential portion (the continuously variable transmission portion) 11 as shown in FIG.
- the gear ratio control means 3886 is configured to provide the efficiency of the first motor M 1 of 1.1 (the continuously variable transmission section) 1.1 and the efficiency of the first motor M 1 and the efficiency of the second motor M 2. Based on M2, the gear ratio of the stepped transmission unit 20 and the gear ratio of the differential unit (stepless transmission unit) 11 are controlled, so that the first motor M1 Efficiency?
- the gear ratio a of the stepped transmission portion 10 and the gear ratio a of the differential portion (stepless variable speed portion) 11 1 Is controlled, so that higher transmission efficiency can be obtained.
- the speed ratio control means 3886 adjusts the speed ratio a of the stepped transmission portion 20 to adjust the output shaft rotation speed ⁇ of the differential portion (stepless transmission portion) 11, Since ⁇ ⁇ is changed, for example, during normal running at relatively high speed, the reverse rotation of the first electric motor ⁇ 1 in the differential section (stepless transmission section) 1 1 as shown in FIG.
- ⁇ ⁇ is changed, for example, during normal running at relatively high speed, the reverse rotation of the first electric motor ⁇ 1 in the differential section (stepless transmission section) 1 1 as shown in FIG.
- FIG. 77 is a skeleton diagram for explaining a hybrid vehicle drive device 410 according to an embodiment of the present invention.
- the drive unit 410 is an input rotation disposed on a common axis in a transmission case 1 (hereinafter, referred to as a case 12) as a non-rotating member mounted on the vehicle body.
- the input shaft 14 as a member and a power distribution mechanism 16 as a differential mechanism connected directly or indirectly to the input shaft 14 via a pulsation absorbing damper (vibration damping device) not shown.
- a stepped automatic transmission 20 connected in series between the power distribution mechanism 16 and the output shaft 22 via a transmission member (transmission shaft) 18;
- An output shaft 22 as an output rotating member connected to 0 is provided in series.
- This drive device 410 is It is suitable for use in FR (front engine and rear drive) type vehicles that are installed vertically, and is provided between an engine 8 as a driving force source for traveling and a pair of drive wheels 38. As shown in FIG. 7, the power is transmitted to a pair of drive wheels 38 via a differential gear device (final reduction gear) 36 and a pair of axles in sequence. It should be noted that the driving device 410 is configured symmetrically with respect to its axis, so that the lower part of the portion representing the driving device 410 in FIG. 77 is omitted.
- the power distribution mechanism 16 is a mechanical mechanism for mechanically synthesizing or distributing the output of the engine 8 input to the input shaft 14, and outputs the output of the engine 8 to the first electric motor M 1 and the automatic transmission.
- the power is transmitted to the transmission member 18 for transmitting (input) to the motor 420, or the output of the engine 8 and the output of the first electric motor M 1 are combined and output to the transmission member 18.
- the second electric motor M2 is provided so as to rotate integrally with the transmission member 18, but may be provided at any part between the transmission member 18 and the output shaft 22.
- the first motor M 1 and the second motor M 2 of the present embodiment are so-called motor generators which also have a power generation function, but the first motor M 1 has a function of generating a reaction force.
- the second motor M2 has at least a motor (motor) function for outputting a driving force.
- the power distribution mechanism 16 includes, for example, a single pinion type first planetary gear device 24 having a predetermined gear ratio ⁇ ) 1 of about "0.3000", a switching clutch C0 and a switching brake B0. Independently provided.
- the first planetary gear device 24 includes a first sun gear S1, a first planetary gear P1, a first carrier CA1, which supports the first planetary gear P1 so as to be able to rotate and revolve, and a first planetary gear P.
- a first ring gear R1 meshing with a first sun gear S1 via 1 is provided as a rotating element (element). Assuming that the number of teeth of the first sun gear S 1 is Z S 1 and the number of teeth of the first ring gear R 1 is Z R 1, the gear ratio p 1 is Z S 1 / Z R 1.
- the first carrier CA 1 is connected to the input shaft 14, that is, the engine 8, the first sun gear S 1 is connected to the first electric motor M 1, and the first ring gear R 1 is a transmission member. Connected to 18.
- Switching brake B 0 is provided between first sun gear S 1 and case 12, and switching clutch C 0 is connected to first sun gear S 1. It is provided between S1 and the first carrier CA1. When the switching clutch C 0 and the switching brake B 0 are released, the first sun gear S 1, the first carrier CA 1, and the first sun gear S 1 perform a differential action that enables relative rotation with respect to each other.
- the output of the engine 8 is distributed to the first motor M1 and the transmission member 18, and a part of the output of the engine 8 is generated from the first motor Ml.
- the electric energy is stored by the generated electric energy or the second electric motor M 2 is driven to rotate, so that, for example, a continuously variable transmission state is established, and the rotation of the transmission member 18 is continuously performed regardless of the predetermined rotation of the engine 8.
- the power distribution mechanism 16 electrically changes its gear ratio a0 (the rotation speed of the input shaft 14 / the rotation speed of the transmission member 18) from the minimum value Omin to the maximum value Omax.
- a differential state for example, a differential state that functions as an electric continuously variable transmission in which the gear ratio a0 is continuously changed from a minimum value Omin to a maximum value Oraax, for example, a continuously variable transmission state. .
- the power distribution mechanism 16 is set to the constant speed change state in which the power distribution mechanism 16 functions as a transmission in which the gear ratio a0 is fixed to “1”.
- the switching brake B0 When the switching brake B0 is engaged in place of the switching clutch C0 and the first sun gear S1 is in a non-differential state in which the first sun gear S1 is in a non-rotating state, the first ring gear Since R 1 is rotated at a higher speed than the first carrier CA 1, the power distribution mechanism 16 functions as a speed increasing transmission in which the gear ratio ⁇ 0 is fixed to a value smaller than “1”, for example, about 0.77.
- a constant speed change state is set.
- the switching clutch C 0 and the switching brake B 0 make the power distribution mechanism 16 a differential state, for example, an electric continuously variable transmission in which the gear ratio can be continuously changed.
- An operable differential state continuously variable transmission state
- a non-differential state for example, a locked state in which the continuously variable transmission is not operated but the continuously variable transmission is deactivated and the change in the gear ratio is locked, ie, 1
- a differential state switch that selectively switches to a constant speed state that can operate as a single-stage or multi-stage transmission with two speed ratios. Functioning as a conversion device.
- the automatic transmission 420 has a single pinion type planetary gear train 426 and a double pinion type third planetary gear train 428.
- the third planetary gear device 428 includes a third sun gear S3, a plurality of pairs of third planetary gears P3 meshing with each other, and a third planetary gear P3 that supports the third planetary gears P3 so that they can rotate and revolve. It has a third ring gear R3 that engages with the third sun gear S3 via the carrier CA3 and the third planetary gear P3. It has a predetermined gear ratio p3 of, for example, "0.315". are doing.
- the second planetary gear train 4 2 6 includes a second planetary gear P 2 common to any one of the second sun gear S 2 and the third planetary gear P 3, a second carrier CA 2 common to the third carrier CA 3, A second ring gear R2 common with the third ring gear R3 that meshes with the second sun gear S2 via the second planetary gear P2 is provided, for example, a predetermined gear of about 0.368. Has a ratio of 2.
- the second planetary gear set 426 and the third planetary gear set 428 are of a so-called Ravigneaux type in which carriers and ring gears are connected to each other and shared.
- the diameter or the number of teeth of the second planetary gear F2 common to any one of the third planetary gears P3 is different between the second planetary gear F2 and the third planetary gear P3. Is also good. Further, the third planetary gear P3 and the second planetary gear P2, the third carrier CA3 and the second carrier CA2, the third ring gear R3 and the second ring gear R2 may be independently provided. .
- the number of teeth of the second sun gear S2 is ZS2
- the number of teeth of the second ring gear R2 is ZR2
- the number of teeth of the third sun gear S3 is ZS3
- the number of teeth of the third ring gear R3 is ZR3.
- the gear ratio /) 2 is ZS 2 / ZR 2
- the gear ratio 3 is ZS 3 / ZR 3.
- the second sun gear S2 is selectively connected to the transmission member 18 via the second clutch C2 and selectively to the case 12 via the first brake B1.
- the second carrier CA 2 and the third carrier CA 3 are selectively connected to the transmission member 18 via the third clutch C 3 and to the case 11 via the second brake B 2.
- the third ring gear R2 and the third ring gear R3 are connected to the output shaft 22 and the third sun gear S3 is selectively connected to the transmission member 18 via the first clutch C1. I have.
- the switching clutch C0, the first clutch CI, the second clutch C2, the third clutch C3, the switching brake B0, the first brake B1, and the second brake B2 are conventional automatic transmissions for vehicles.
- Hydraulic multi-disc type in which a plurality of friction plates superimposed on each other are pressed by a hydraulic actuator, or an outer peripheral surface of a rotating drum
- One end of one or two bands wound around is composed of a band brake tightened by hydraulic actuators, etc., to selectively connect the members on both sides where it is interposed.
- the drive device 410 configured as described above, for example, as shown in the engagement operation table of FIG. 78, the switching clutch C 0, the first clutch C 1, the second clutch C 2, When the clutch C3, the switching brake B0, the first brake B1, and the second brake B2 are selectively engaged, the first gear (first gear) to the fifth gear are operated. Gear (fifth gear), reverse gear (reverse gear) or neutral can be selectively established.
- the power distribution mechanism 16 is provided with the switching clutch C 0 and the switching brake B 0, and the power distribution is performed by engaging one of the switching clutch C 0 and the switching brake B 0.
- the mechanism 16 must be able to operate as a single-stage or multi-stage transmission with one or more speed ratios, in addition to the above-mentioned continuously variable transmission that can operate as a continuously variable transmission. Is possible. Therefore, in the drive unit 410, the power transmission mechanism 16 and the automatic transmission 420, which are brought into the constant speed change state by engaging one of the switching clutch C0 and the switching brake B0, are stepped.
- a transmission is constituted, and the automatic transmission 422 is continuously variable between the power distribution mechanism 16 and the automatic transmission 422 which are in a continuously variable transmission state by not engaging any of the switching clutch C0 and the switching brake B0.
- a speed machine is configured.
- the speed change is performed by engagement of the switching clutch C0, the first clutch C1, and the second brake B2.
- the second gear which is smaller than the gear, for example, about “1.585”, is established, and the engagement of the switching clutch C0, the first clutch C1, and the third clutch C3 causes The third gear stage in which the gear ratio a3 is smaller than that of the second gear stage, for example, about "1.000" is established, and the switching clutch C0, the third clutch C3, and the first brake B By the engagement of 1, the fourth gear stage in which the gear ratio a4 is smaller than the third gear stage, for example, about 0.731, is established, and the third clutch C 3 and the switching brake B By engaging 0 and the engagement of the first brake B1, the fifth gear stage in which the gear ratio a5 is smaller than that of the fourth gear stage, for example, about 0.562 is established.
- the gear ratio aR is a value between the first gear and the second gear, for example, about “2.717”.
- the reverse gear is established. Note that, for example, when the neutral “N” state is set, only the second brake B2 is engaged.
- FIG. 79 shows a drive system including a power distribution mechanism 16 functioning as a continuously variable transmission unit or a first transmission unit and an automatic transmission 420 functioning as a stepped transmission unit or a first transmission unit.
- an alignment chart is shown, which can represent, on a straight line, the relative relationship between the rotational speeds of the rotary elements having different connection states for each gear.
- the alignment chart in FIG. 79 shows the relative relationship of the gear ratio p of each of the planetary gear units 24, 426, and 428 in the horizontal axis direction, and the two-dimensional graph showing the relative rotational speed in the vertical axis direction.
- the lowermost horizontal line X1 of the three horizontal axes indicates zero rotation speed, and the horizontal line X2 indicates the rotation speed “1.0”.
- the horizontal axis XG indicates the rotating speed of the power transmitting member 1 8.
- the three vertical lines YKY 2 and Y 3 of the power distribution mechanism 16 correspond to the first sun gear S 1 and the first rotation element (the second rotation element) corresponding to the second rotation element (second element) RE 2 in order from the left. 1 element) 1st carrier CA1 corresponding to RE1, 3rd rotating element (3rd element) Indicates the relative rotation speed of the first ring gear R1 corresponding to RE3. It is determined according to the gear ratio p 1 of the planetary gear set 24.
- the interval between the vertical lines Y 1 and Y 2 corresponds to 1
- the interval between the vertical lines Y 2 and Y 3 corresponds to the gear ratio p 1.
- the four vertical lines Y4, Y5, ⁇ 6, ⁇ 7 of the automatic transmission 20 correspond to the second sun gear S2, the second sun gear S2 corresponding to the fourth rotating element (the fourth element) RE4 in order from the left.
- the second ring gear R2, the third ring gear R3, and the seventh rotating element represent the third sun gear S3 corresponding to RE7, and the distance between them is the second and third planetary gear units. They are determined according to the gear ratios 2 and p 3 of 4 26 and 4 28 respectively.
- the drive unit 410 of the present embodiment includes a power distribution mechanism (stepless transmission unit) 16, a three-rotation element of the first planetary gear unit 24.
- the first rotating element RE 1 (first carrier CA 1), which is one of the (elements), is connected to the input shaft 14 and the first rotating element RE 2 which is the second rotating element RE 2 via the switching clutch C 0.
- the second rotary element RE 2 (first sun gear S 1) is selectively connected to the first electric motor M 1 and selectively connected to the case 11 via the switching brake B 0.
- the third rotating element RE 3 (first ring gear R 1), which is the remaining rotating element, is connected to the transmission member 18 and the second electric motor M to transmit the rotation of the input shaft 14 to the transmission member 18.
- the automatic transmission (stepped transmission unit) 420 is transmitted (inputted) through the automatic transmission.
- the relationship between the rotation speed of the first sun gear S1 and the rotation speed of the first ring gear R1 is indicated by an oblique straight line L0 passing through the intersection of Y2 and X2.
- FIGS. 4 and 5 are diagrams corresponding to the power distribution mechanism 16 in the alignment chart of FIG. It is.
- FIG. 4 shows an example of the state of the power distribution mechanism 16 when the state is changed to the continuously variable transmission state by releasing the switching clutch C 0 and the switching brake B 0.
- the rotation speed of the first sun gear S1 indicated by the intersection of the straight line L0 and the vertical line Y1 is increased or decreased by controlling the reaction force generated by the first motor M1
- the rotation speed of the first ring gear R1, indicated by the intersection of the straight line 0 and the vertical line Y3 is decreased or increased.
- the drive device 10 of the present embodiment is configured so that the automatic transmission 420 can output the rotational speed input from the transmission member 18 at an increased speed, as will be described later. There are few situations where it is necessary to make S1 a negative rotation. Therefore, fuel efficiency is improved as compared with a device in which the rotation speed of the transmission member 18 cannot be increased in the automatic transmission 420.
- FIG. 5 shows a state of the power distribution mechanism 16 when the transmission is switched to the stepped shift state by engagement of the switching clutch C0. That is, when the first sun gear S 1 and the first carrier CA 1 are connected, the above-mentioned three rotating elements rotate integrally, so that the straight line L 0 matches the horizontal line X 2, and the engine rotational speed NE and The transmission member 18 is rotated at the same speed.
- the straight line L 0 is in the state shown in FIG. 79, which is indicated by the intersection of the straight line L 0 and the vertical line Y 3 rotational speed of the first ring gear R 1 of rotation speed, that the transmission member 1 8 is input is higher than the engine speed N E and the automatic transmission 4 2 0. .
- the fourth rotating element RE4 is selectively connected to the transmission member 18 via the second clutch C2, and the case 12 via the first brake B1.
- the fifth rotating element RE5 is transmitted through the third clutch C3.
- the sixth rotating element RE 6 is selectively connected to the case 12 via the second brake B 2, and the sixth rotating element RE 6 is connected to the output shaft 2.
- 7 is selectively connected to the transmission member 18 via the first clutch C1.
- the first clutch C1 and the second brake B2 are engaged to indicate the rotation speed of the seventh rotation element RE7.
- the rotation speed of the first-speed output shaft 12 is shown at the intersection with the vertical line Y6 indicating the rotation speed of the sixth rotation element RE6.
- an oblique straight line L determined by engagement of the first clutch C 1 and the first brake B 1 and a vertical line indicating the rotation speed of the sixth rotation element RE 6 connected to the output shaft 22.
- the rotation speed of the second speed output shaft 22 is shown at the intersection with Y6, and the horizontal straight line L3 and the output shaft determined by the engagement of the first clutch C1 and the third clutch C3.
- the rotation speed of the third-speed output shaft 22 is shown at the intersection with the vertical line Y6 indicating the rotation speed of the sixth rotation element RE 6 connected to 22.
- a rotation speed of 2 is shown. In the first speed through the fourth speed, as a result of switching clutch C 0 is engaged, at the same speed as the engine speed N E, power from the power distribution mechanism 1 6 to the fifth rotary element RE 5 Is entered.
- the driving device 410 configured as described above is, for example, an electronic control device shown in FIG. W
- the hybrid drive control for the engine 8 the electric motors M1, M2, the automatic transmission 2
- the drive control such as the 0 shift control is executed.
- the power distribution mechanism 16 can operate as an electric continuously variable transmission by engaging and releasing the switching clutch C 0 and / or the switching brake B 0.
- the power distribution mechanism is used in the engine's normal output range where the vehicle is running at low to medium speeds and low to medium power. 16 is in a continuously variable transmission state to ensure the fuel efficiency of the hybrid vehicle.
- the output of No. 8 is transmitted to the drive wheels 38 to suppress the conversion loss between power and electricity, thereby improving fuel efficiency.
- the region in which the power distribution mechanism 16 is set to the constant speed change state and operated as the continuously variable speed change state is the low-medium-speed running and low-medium-power running of the vehicle.
- the electric energy to be generated that is, the maximum value of the electric energy transmitted by the first motor M1 can be reduced, in other words, the electric reaction force to be guaranteed by the first motor M1 can be reduced, and the The first motor M 1, the second motor M, or the driving device 10 including the first motor M 1 is reduced in size.
- the automatic transmission 20 is shifted at the same time that the power distribution mechanism 16 is brought into the constant shift state, so that, for example, the upshift shown in FIG. change in the rotational speed of the rhythmic Enjin 8 due to the change which the transmission of the engine rotational speed N E is generated.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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KR1020067015144A KR100887204B1 (ko) | 2003-12-26 | 2004-12-24 | 차량용 구동장치 및 그 제어 방법 |
CN2004800421005A CN1926356B (zh) | 2003-12-26 | 2004-12-24 | 车辆用驱动系统 |
EP04808093A EP1701061B1 (en) | 2003-12-26 | 2004-12-24 | Drive device for vehicle, method of controlling the device, and device for controlling the device |
Applications Claiming Priority (18)
Application Number | Priority Date | Filing Date | Title |
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JP2003435967 | 2003-12-26 | ||
JP2003-435967 | 2003-12-26 | ||
JP2004-050530 | 2004-02-25 | ||
JP2004050530 | 2004-02-25 | ||
JP2004052211A JP4026604B2 (ja) | 2004-02-26 | 2004-02-26 | 車両用駆動装置の制御装置 |
JP2004-052211 | 2004-02-26 | ||
JP2004156884A JP4218591B2 (ja) | 2004-05-26 | 2004-05-26 | 車両用駆動装置の制御装置 |
JP2004-156884 | 2004-05-26 | ||
JP2004-159602 | 2004-05-28 | ||
JP2004159602A JP4218593B2 (ja) | 2003-12-26 | 2004-05-28 | 車両の駆動装置 |
JP2004-194792 | 2004-06-30 | ||
JP2004194792A JP4259408B2 (ja) | 2004-06-30 | 2004-06-30 | 車両用駆動装置の制御装置 |
JP2004-333627 | 2004-11-17 | ||
JP2004333627A JP4442398B2 (ja) | 2004-02-25 | 2004-11-17 | 車両用駆動装置の制御装置 |
JP2004-365144 | 2004-12-16 | ||
JP2004365144A JP4155265B2 (ja) | 2004-12-16 | 2004-12-16 | 車両用駆動装置 |
JP2004-365143 | 2004-12-16 | ||
JP2004365143A JP4155264B2 (ja) | 2004-12-16 | 2004-12-16 | 車両用駆動装置 |
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- 2004-12-24 EP EP11002541.8A patent/EP2375103B1/en not_active Expired - Fee Related
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- 2004-12-24 KR KR1020077025340A patent/KR100863172B1/ko active IP Right Grant
- 2004-12-24 KR KR1020077025344A patent/KR20070112304A/ko not_active Application Discontinuation
- 2004-12-24 CN CN2011100791521A patent/CN102166946B/zh not_active Expired - Fee Related
- 2004-12-24 KR KR1020077025343A patent/KR100882177B1/ko active IP Right Grant
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- 2004-12-24 KR KR1020077025342A patent/KR100882176B1/ko active IP Right Grant
- 2004-12-24 CN CN2004800421005A patent/CN1926356B/zh not_active Expired - Fee Related
- 2004-12-24 CN CN201110079155.5A patent/CN102166950B/zh not_active Expired - Fee Related
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DE112006002068B4 (de) | 2005-08-03 | 2019-08-22 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Elektrisch verstellbares Getriebe mit zwei oder drei Planetenradsätzen und zwei oder drei festen Verbindungen |
DE112006002069B4 (de) | 2005-08-05 | 2021-11-04 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Elektrisch verstellbares Getriebe mit drei Planetenradsätzen und gekuppeltem Antrieb |
DE112006002210B4 (de) | 2005-08-18 | 2022-01-13 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Elektrisch verstellbares Getriebe mit drei Planetenradsätzen und zwei festen Verbindungen |
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KR20070112301A (ko) | 2007-11-22 |
US7941259B2 (en) | 2011-05-10 |
EP2375103B1 (en) | 2016-04-20 |
KR20060113997A (ko) | 2006-11-03 |
KR20070112304A (ko) | 2007-11-22 |
CN102166950B (zh) | 2014-07-02 |
KR100882176B1 (ko) | 2009-02-06 |
KR100882177B1 (ko) | 2009-02-06 |
US7848858B2 (en) | 2010-12-07 |
EP2375103A1 (en) | 2011-10-12 |
KR100863173B1 (ko) | 2008-10-13 |
KR20070112302A (ko) | 2007-11-22 |
KR100863172B1 (ko) | 2008-10-13 |
US20090075774A1 (en) | 2009-03-19 |
EP1701061A4 (en) | 2007-11-07 |
CN102166950A (zh) | 2011-08-31 |
CN1926356A (zh) | 2007-03-07 |
CN102166946A (zh) | 2011-08-31 |
CN102166946B (zh) | 2012-11-28 |
US20090069966A1 (en) | 2009-03-12 |
CN1926356B (zh) | 2011-06-15 |
KR20070112303A (ko) | 2007-11-22 |
US20090069965A1 (en) | 2009-03-12 |
EP1701061A1 (en) | 2006-09-13 |
US7822524B2 (en) | 2010-10-26 |
KR20070112430A (ko) | 2007-11-23 |
EP1701061B1 (en) | 2012-01-18 |
US20050209760A1 (en) | 2005-09-22 |
KR20070112300A (ko) | 2007-11-22 |
KR100887204B1 (ko) | 2009-03-06 |
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