WO2010070725A1 - 車両用動力伝達装置 - Google Patents
車両用動力伝達装置 Download PDFInfo
- Publication number
- WO2010070725A1 WO2010070725A1 PCT/JP2008/072791 JP2008072791W WO2010070725A1 WO 2010070725 A1 WO2010070725 A1 WO 2010070725A1 JP 2008072791 W JP2008072791 W JP 2008072791W WO 2010070725 A1 WO2010070725 A1 WO 2010070725A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- differential
- output
- rotation
- vehicle
- speed
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
-
- 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
-
- 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
- B60K17/344—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear
- B60K17/346—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear the transfer gear being a differential gear
- B60K17/3462—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear the transfer gear being a differential gear with means for changing distribution of torque between front and rear wheels
-
- 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
- B60K6/42—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
-
- 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
- B60K6/52—Driving a plurality of drive axles, e.g. four-wheel drive
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/02—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
- B60L7/14—Dynamic electric regenerative braking for vehicles propelled by ac motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
- B60W10/11—Stepped gearings
- B60W10/115—Stepped gearings with planetary gears
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60W10/12—Conjoint control of vehicle sub-units of different type or different function including control of differentials
- B60W10/14—Central differentials for dividing torque between front and rear axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
-
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
-
- 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
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/08—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles
- B60K23/0808—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles for varying torque distribution between driven axles, e.g. by transfer clutch
- B60K2023/0816—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles for varying torque distribution between driven axles, e.g. by transfer clutch for varying front-rear torque distribution with a central differential
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/44—Drive Train control parameters related to combustion engines
- B60L2240/443—Torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/44—Drive Train control parameters related to combustion engines
- B60L2240/445—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/48—Drive Train control parameters related to transmissions
- B60L2240/485—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2250/00—Driver interactions
- B60L2250/16—Driver interactions by display
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2260/00—Operating Modes
- B60L2260/20—Drive modes; Transition between modes
- B60L2260/28—Four wheel or all wheel drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0666—Engine torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/083—Torque
-
- 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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
- F16H37/084—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
- F16H2037/0866—Power split variators with distributing differentials, with the output of the CVT connected or connectable to the output shaft
- F16H2037/0873—Power split variators with distributing differentials, with the output of the CVT connected or connectable to the output shaft with switching, e.g. to change ranges
-
- 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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/10—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts
- F16H2037/101—Power split variators with one differential at each end of the CVT
-
- 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
- F16H2200/0017—Transmissions for multiple ratios specially adapted for four-wheel-driven vehicles
-
- 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
- F16H2200/003—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
-
- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
-
- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
-
- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/19005—Nonplanetary gearing differential type [e.g., gearless differentials]
Definitions
- the present invention relates to a vehicle power transmission device, and more particularly to a technique for controlling differential rotation of a plurality of wheels.
- a power generator having a rotating machine capable of electrically torque control;
- a power input rotating element a first output rotating element operatively connected to the first wheel, and a second wheel.
- Distributing device comprising three rotating elements of a second output rotating element connected together, and distributing power input from the power generator to the input rotating element to the first output rotating element and the second output rotating element
- vehicular power transmission devices are widely known.
- the power transmission device for a vehicle described in Patent Document 1 is an example thereof and relates to a hybrid drive type front and rear wheel drive vehicle.
- the rotating machine (a-1) the rotating machine (motor generator) is a differential.
- An electric differential unit that is connected to a mechanism so as to be capable of transmitting power and that controls the operating state of the rotating machine to control the differential state between the rotational speed of the differential input member and the rotational speed of the differential output member. And (a-2) a power source (engine) connected to the differential input member so that power can be transmitted.
- FIG. 19 shows an example of a power transmission device 100 for a hybrid vehicle having a schematic configuration (main diagram), which includes a power generation device 101 and front and rear wheel power distribution devices 104.
- the power generation device 101 includes an engine 110 used as a main power source and an electric differential unit 102.
- the electric differential unit 102 includes a single-pinion type differential planetary gear device 106 as a differential mechanism. ing.
- An engine 110 is connected to the carrier SCA of the differential planetary gear unit 106 via a differential input shaft 108 as a differential input member, and the first motor generator MG1 as a rotating machine is connected to the sun gear SS.
- the differential output member 112 is integrally connected to the ring gear SR.
- the front and rear wheel power distribution device 104 is mainly configured by a double pinion type planetary gear device 114 for distribution.
- the ring gear CR of the distribution planetary gear device 114 is an input rotation element, and is integrated with the differential output member 112.
- the sun gear CS is a first output rotating element, and is operatively connected to the rear wheel (first wheel) via the rear wheel side output shaft 116 and the like.
- the carrier CCA is a second output rotating element, and the front wheel side. It is operatively connected to the front wheel (second wheel) via the output gear 118 or the like.
- a second motor generator MG2 is connected to the rear wheel side output shaft 116 as an auxiliary power source so that power can be transmitted.
- Such a power transmission device 100 has an engine rotational speed NE in consideration of fuel consumption and the like as shown in the alignment chart of FIG. That is, the rotational speed of the differential input shaft 108 is controlled, and the first motor generator MG1 is regeneratively controlled so as to have a predetermined rotational speed NMG1 determined according to the rotational speed of the differential output member 112, that is, the vehicle speed V. . Further, by performing power running control of the second motor generator MG2 with electric energy obtained by the regenerative control of the first motor generator MG1, assist torque is added to the rear wheel side, and the engine load is reduced accordingly.
- FIG. 20 also shows a collinear diagram regarding the front and rear wheel power distribution device 104, where “Rr” is the rotational speed of the rear wheel side output shaft 116, that is, the rotational speed of the sun gear CS, and “Fr” is the front wheel side.
- the rotational speed of the output gear 118 that is, the rotational speed of the carrier CCA.
- the speed ratio from the rear wheel side output shaft 116 to the rear wheel is the same as the speed ratio from the front wheel side output gear 118 to the front wheel.
- the ratio of the intervals between the three rotating elements including the ring gear CR is determined according to the gear ratio ⁇ C of the distribution planetary gear device 114. JP 2004-114944 A
- the first output rotation element (sun gear CS in FIG. 19) and the second output rotation element (same carrier CCA) of the power distribution device are input rotation elements (same ring gear). (CR) is allowed to rotate differentially as a fulcrum.
- differential control means such as a clutch or a disc spring must be provided separately in order to limit the differential when, for example, an oversteer occurs during turning. It was.
- the present invention has been made in the background of the above circumstances, and an object thereof is related to a power distribution device that distributes power input from a power generation device to a first output rotation element and a second output rotation element.
- the difference between the first output rotating element and the second output rotating element can be controlled by a simple means.
- the first invention comprises (a) a power generator having a rotating machine capable of electrically controlling torque, and (b) an input rotating element operatively connected to the first wheel.
- the first output rotating element and the second output rotating element operatively connected to the second wheel, and the power input from the power generator to the input rotating element is used as the first output rotating element.
- a power distribution device that distributes the power to the second output rotation element.
- the power distribution device is capable of expressing the rotation speeds of the three rotation elements on a straight line.
- the input rotation element, the first output rotation element, and the second output rotation element are configured in order from one end to the other end, and (d) the first output rotation An element and the second output rotating element are predetermined Wherein the operating state of the rotating machine is controlled so that the dynamic state.
- the power generation device includes: (a) the rotating machine is connected to the differential mechanism so that power can be transmitted, and the operating state of the rotating machine is controlled.
- An electric differential unit that controls a differential state between the rotational speed of the differential input member and the rotational speed of the differential output member, and (b) power connected to the differential input member so as to transmit power.
- a source a source.
- the first output rotation element and the second output rotation element are in a predetermined differential state based on a vehicle running state.
- An operating point of the rotating machine is calculated, and the rotating machine is controlled so as to be operated at the operating point.
- a fourth aspect of the present invention is the vehicle power transmission device according to any one of the first to third aspects of the present invention, wherein the first output rotating element and the second output rotating element are differentially limited to each other. It is characterized by suppressing a change in rotational speed.
- the rotational speed change of the rotating machine is suppressed so that the first output rotation element and the second output rotation element are differentially limited to each other.
- the power source is controlled to suppress a change in the rotation speed of the differential input member by suppressing a change in the rotation speed of the rotating machine.
- the input rotation element Since the first output rotation element and the second output rotation element are configured, the differential rotation of the first output rotation element and the second output rotation element is limited by the rotation speed of the input rotation element. That is, the first output rotation of each of the first output rotation element and the second output rotation element is linearly connected to the rotation speed of the input rotation element located at one end of the nomograph. The rotational speed of the element and the second output rotation element is restricted.
- the differential rotation of the first output rotation element and the second output rotation element is limited, or during turning Or a predetermined differential state.
- the torque of the rotating machine of the power generation device it is possible to control the ease of changing the rotational speed of the input rotary element, thereby limiting or allowing the rotational speed change. If the rotating machine torque is increased to limit the rotation speed change of the input rotating element, the differential rotation of the first output rotating element and the second output rotating element is limited, and the rotating machine torque is decreased to reduce the input rotating element If the change in the rotation speed is allowed, differential rotation of the first output rotation element and the second output rotation element is allowed.
- the operating state of the rotating machine of the power generation device that is, the rotational speed and torque are controlled, and the rotational speed of the input rotary element and the ease of change of the rotational speed are controlled. Since the differential rotation of the first output rotation element and the second output rotation element can be limited or permitted by controlling, it is necessary to separately provide mechanical differential control means such as a clutch and a disc spring.
- the device is simple and inexpensive.
- the second invention is a case where the power generation device has an electric differential portion, and the rotation speed of the differential output member, that is, the rotation speed of the input rotation element of the power distribution device is determined by the rotation speeds of both the rotating machine and the power source. Therefore, for example, when prohibiting the differential rotation by controlling the rotational speed of the rotating machine or setting it to a predetermined differential state, or when limiting the differential rotation by increasing the torque of the rotating machine, When the reverse input torque from the abruptly changes, the load torque is absorbed by a change in the rotational speed of the power source, and an excessive load is prevented from acting on the rotating machine and other rotating elements.
- the operating point of the rotating machine where the first output rotating element and the second output rotating element are in a predetermined differential state is calculated based on the vehicle running state, and is operated at that operating point. Since the rotating machine is controlled, it is possible to prevent the occurrence of a tight corner brake phenomenon or to suppress understeer by permitting differential rotation during turning while restricting differential rotation during straight traveling.
- the rotational speed change of the rotating machine is suppressed so that the first output rotating element and the second output rotating element are differentially limited to each other. Oversteer during running can be suppressed.
- the rotational speed of the rotating machine is changed so that the first output rotating element and the second output rotating element are differentially limited to each other when the power generation device includes an electric differential unit.
- the difference between the first output rotation element and the second output rotation element to control the power source so as to suppress the change in the rotation speed of the differential input member by suppressing the change in the rotation speed of the rotating machine.
- the movement is appropriately limited, and it is possible to improve running stability during straight running and to suppress oversteer during turning as in the fourth aspect of the invention.
- FIG. 1 is a skeleton diagram illustrating a power transmission device for a front and rear wheel drive vehicle to which the present invention is applied.
- FIG. 2 is a diagram for explaining an example of an automatic transmission provided in the power transmission device of FIG. 1, (a) is a skeleton diagram of the automatic transmission, (b) is a plurality of gear stages of (a) ⁇ automatic transmission. It is an action
- FIG. 3 is a collinear diagram that can linearly represent the relationship between the rotational speeds of the three rotating elements of the electric differential section of the power transmission device of FIG. 1, and also shows the collinear diagram of the front and rear wheel power distribution device.
- FIG. 6 is a flowchart for specifically explaining the contents of differential control performed by the front and rear wheel differential control means of FIG. 5.
- FIG. 9 is a collinear diagram showing the rotation speeds of the respective parts when differential control is performed according to the flowchart of FIG. 9 during turning, corresponding to FIG. It is a flowchart explaining another example of the differential control performed by the front-and-rear wheel differential control means of FIG. It is a figure which shows an example of the target yaw rate Yr used by step R4 of FIG. FIG.
- FIG. 6 is a skeleton diagram illustrating another embodiment of the present invention, in which (a) the kite is applied to a front and rear wheel drive vehicle based on a horizontally mounted front wheel drive vehicle, and (b) the kite is connected to a distribution planetary gear device.
- FIG. 6 is a skeleton diagram illustrating still another embodiment of the present invention, and is a skeleton diagram illustrating two types of examples in which a double pinion type planetary gear device is used as a differential mechanism of a front and rear wheel power distribution device. It is a figure explaining another Example of this invention, and is a figure corresponding to the said FIG.
- FIG. 19 is a collinear diagram that can represent on a straight line the relationship between the rotational speeds of the three rotary elements of the electric differential section of the power transmission device of FIG. 19, and also shows the collinear diagram of the front and rear wheel power distribution device It is.
- the present invention is preferably applied to a vehicle power transmission device including a power generation device having an electric differential portion as in the second invention, but is also applicable to a case where the power generation device is only a rotating machine. Can be done.
- a power source connected to the differential input member of the electric differential unit an internal combustion engine such as a gasoline engine or a diesel engine is preferably used.
- an electric motor (including a motor generator) is used as an auxiliary power source. It may be a hybrid drive type provided between the power distribution device and the wheels.
- a power source connected to the differential input member a power source other than the internal combustion engine such as an electric motor or a motor generator may be employed.
- the present invention is preferably applied to differential control of front and rear wheels in a front and rear wheel drive vehicle in which the first wheel is a front and rear wheel and the second wheel is the other of the front and rear wheels.
- the second wheel can be applied to differential control of the left and right wheels which are the other of the left and right wheels.
- the electric differential unit includes, for example, a single planetary gear device of a single pinion type or a double pinion type as a differential mechanism, but can also be configured using a plurality of planetary gear devices or an umbrella.
- Various modes are possible, such as a gear-type differential.
- This electric differential unit is a collinear diagram that can represent on a straight line the rotational speeds of the three rotating elements of the differential mechanism connected to the rotating machine, the differential input member, and the differential output member, for example.
- the rotary element connected to the differential input member is configured to be positioned in the middle, but the present invention is also applied to the case where the rotary element connected to the differential output member is positioned in the middle. obtain.
- the rotating machine is a rotating electric machine, and a motor generator that can selectively obtain the functions of an electric motor and a generator is preferably used.
- a motor generator that can selectively obtain the functions of an electric motor and a generator is preferably used.
- the rotating machine is regeneratively controlled to regenerate.
- a generator can be adopted as the rotating machine, and the rotating machine can be directly connected to the input rotating element of the power distribution device as a power generator Can also adopt an electric motor as a rotating machine.
- a power generation device can also be configured using both an electric motor and a generator.
- the power distribution device is configured to include, for example, a single planetary gear device of a single pinion type or a double pinion type as a differential mechanism in the same manner as the electric differential unit, and is configured using a plurality of planetary gear devices.
- Various modes are possible, such as a bevel gear type differential device can be used.
- the differential mechanism is a single pinion type single planetary gear unit
- the carrier located in the middle on the collinear chart is the first output rotating element
- the sun gear and the ring gear are either the input rotating element or the second output rotating element. It becomes.
- the differential mechanism is a single planetary gear device of the double pinion type
- the ring gear located in the middle on the collinear chart becomes the first output rotating element
- the sun gear and the carrier are either the input rotating element or the second output rotating element. It becomes.
- the input rotation element of the power distribution device and the differential output member may be integrally connected, but may be connected via an intermittent device such as a clutch or via a transmission that increases or decreases speed.
- an intermittent device such as a clutch or via a transmission that increases or decreases speed.
- Various embodiments are possible. Even when the power generation device is only a rotating machine, various modes are possible for the connection form of the rotating machine and the input rotating element as in the case of the differential output member.
- the power transmission path from the first output rotation element to the first wheel or the power transmission path from the second output rotation element to the second wheel is stepped as necessary.
- a type or continuously variable transmission is provided. It is also possible to provide a transmission in the power transmission path from the power generation device to the power distribution device.
- the transmission gear ratio from the first output rotation element to the first wheel differs from the transmission gear ratio from the second output rotation element to the second wheel due to the presence or absence of the transmission
- the rotation speed of these output rotation elements The difference in rotational speed in this case does not mean differential, but the change in rotational speed relative to the reference rotational speed determined by the speed ratio and vehicle speed (average wheel rotational speed) is differential. It is.
- the operating point of the rotating machine where the first output rotating element and the second output rotating element are in a predetermined differential state is calculated based on the vehicle running state, and is operated at that operating point.
- the rotating machine is controlled. For example, it is determined whether or not the first output rotating element and the second output rotating element require a differential based on the vehicle running state.
- Various modes are possible, such as only allowing the rotational speed of the input rotating element to be changed by reducing the torque.
- the vehicle running state includes a steering angle, vehicle speed, power source output (throttle valve opening, motor torque, and the like) involved in the differential between the front and rear wheels and the left and right wheels.
- an input rotation that calculates (predicts) the rotational speed difference ⁇ N between the first wheel and the second wheel in advance based on the vehicle running state and allows differential rotation of the rotational speed difference ⁇ N.
- the rotational speed Ndef of the element is obtained based on the gear ratio of the power distribution device, etc., and the rotational speed of the rotating machine of the power generating device is controlled so that the input rotational element becomes the rotational speed Ndef.
- actual yaw rate (yaw angular velocity) Y is detected or calculated, and if the yaw rate Y is substantially the same as the predetermined target yaw rate Yr, the current control is continued.
- the yaw rate Y is larger than the target yaw rate Yr, that is, when there is an oversteer tendency, the differential is limited so that the oversteer is suppressed. Therefore, the torque of the rotating machine is set so that the rotational speed change of the rotating machine is suppressed.
- the torque of the power source is further corrected so that the change in the rotational speed of the differential input member is suppressed.
- a sub-power source such as an electric motor is provided between the first output rotating element and the first wheel or between the second output rotating element and the second wheel, the above rotation is possible. It is desirable to correct the torque of the auxiliary power source so that the fluctuation of the driving force due to the torque change of the machine or the power source is suppressed.
- the yaw rate Y is smaller than the target yaw rate Yr, that is, when understeering, the differential is allowed so that understeer is suppressed, so the torque of the rotating machine is corrected so that the change in the rotating speed of the rotating machine is allowed.
- a sub-power source such as an electric motor is provided between the first output rotating element and the first wheel or between the second output rotating element and the second wheel, the above rotation is possible. It is desirable to correct the torque of the auxiliary power source so that fluctuations in driving force due to machine torque changes are suppressed.
- FIG. 1 is a skeleton diagram illustrating a power transmission device 10 of a hybrid drive type front and rear wheel drive vehicle according to an embodiment of the present invention, which includes a power generation device 11 and front and rear wheel power distribution devices 14.
- the power generation device 11 includes an engine 20 used as a main power source and an electric differential unit 12, and the electric differential unit 12 includes a single-pinion type differential planetary gear unit 16 as a differential mechanism. ing.
- the engine 20 is connected to the carrier SCA of the differential planetary gear unit 16 via a differential input shaft 18 as a differential input member, and the first motor generator MG1 is connected to the sun gear SS.
- the differential output member 22 is integrally connected to the ring gear SR.
- the engine 20 is an internal combustion engine such as a gasoline engine or a diesel engine, and is directly connected to the differential input shaft 18 or indirectly through a pulsation absorbing damper (not shown).
- the first motor generator MG1 is provided as a rotating machine and can selectively exhibit both functions of the electric motor and the generator, but is mainly used as a generator in this embodiment.
- the electric differential section 12 configured as described above has a differential action because the sun gear SS, the carrier SCA, and the ring gear SR, which are the three rotating elements of the differential planetary gear device 16, can be rotated relative to each other. Since the working differential state is achieved, the output of the engine 20 is distributed to the first motor generator MG1 and the differential output member 22.
- the first motor generator MG1 is rotationally driven by a part of the output of the distributed engine 20
- electric energy is generated by regenerative control (power generation control) of the first motor generator MG1
- the second motor generator MG2 provided in the power transmission path on the rear wheel side is subjected to power running control, and surplus electrical energy is charged in the power storage device 64 (see FIG. 5) that is a battery.
- the electric differential section 12 is caused to function as an electric differential device, and is in a so-called continuously variable transmission state (electric CVT state), and the differential output member 22 rotates regardless of the predetermined rotation of the engine 20. Is continuously changed according to the rotation speed of the first motor generator MG1.
- the front and rear wheel power distribution device 14 is mainly configured by a single pinion type distribution planetary gear device 24 that functions as a differential mechanism.
- the ring gear CR of the distribution planetary gear device 24 is an input rotation element, and the difference
- the dynamic output member 22 is integrally connected.
- the carrier CCA is integrally connected to the rear wheel side output shaft 26, and the sun gear CS is integrally connected to the front wheel side output gear 28.
- the rear wheel side output shaft 26 is operatively connected to the left and right rear wheels 34 via the automatic transmission 30 and the rear left and right wheel power distribution device 32, and the automatic transmission 30 and the carrier CCA.
- the second motor generator MG2 is coupled to the power transmission path between the two so as to be able to transmit power.
- the second motor generator MG2 is provided as an auxiliary power source and can selectively exhibit the functions of both the electric motor and the generator.
- the second motor generator MG2 is mainly used as an electric motor and rotationally drives the rear wheel 34.
- the front wheel side output gear 28 is operatively connected to the left and right front wheels 44 via a counter gear 36, a driven gear 38, a transmission shaft 40, a front left and right wheel power distribution device 42, and the like.
- the electrical differential section 12, the front and rear wheel power distribution device 14, the first motor generator MG1, and the second motor generator MG2 are configured substantially symmetrically with respect to the axis thereof, so that the outline of FIG. In the figure, the lower half is omitted.
- the front and rear wheel drive vehicle of this embodiment is a four wheel drive vehicle based on an FR (front engine / rear drive) vehicle, and is a planetary gear type between the electric differential section 12 and the second motor generator MG2.
- FR front engine / rear drive
- the front and rear wheel power distribution device 14 power is transmitted from the electric differential section 12 to the front wheels 44.
- FIG. 8 is a collinear diagram that can represent the rotational speeds of the three rotating elements (SS, SCA, SR) of the electric differential section 12 on a straight line, and the collinear diagram of the front and rear wheel power distribution device 14. It is shown together.
- the ratio of the intervals between the rotating elements (SS, SCA, SR) of the electric differential unit 12 that can obtain a differential action by the single-pinion type differential planetary gear unit 16 is the gear ratio of the differential planetary gear unit 16.
- the ratio of the intervals between the rotating elements (CS, CCA, CR) of the front and rear wheel power distribution device 14 which is determined according to ⁇ S and can obtain a differential action by the single pinion type distribution planetary gear device 24 is the distribution planetary gear device.
- the gear ratio ⁇ C of 24 It is determined according to the gear ratio ⁇ C of 24.
- the engine 20 is connected to the carrier SCA located in the middle in the collinear diagram, and the carrier SCA
- the differential output member 22 is connected to the ring gear SR on the narrower side
- the first motor generator MG1 is connected to the sun gear SS on the wider side.
- the carrier CCA located in the middle of the alignment chart is the first output rotating element, and in this embodiment, the rear wheel output shaft.
- the rear wheel 34 corresponds to one first wheel of the front and rear wheels
- the front wheel 44 corresponds to the other second wheel of the front and rear wheels.
- the gear ratio ⁇ S of the differential planetary gear device 16 and the gear ratio ⁇ C of the distribution planetary gear device 24 are appropriately determined in consideration of the torque distribution ratio and the like.
- the front wheel side output gear 28 and the driven gear 38 have the same number of teeth and are rotated at the same speed in the same direction, and the final reduction ratio (diff ratio) ir on the rear wheel 34 side and the final reduction on the front wheel 44 side.
- the carrier CCA and the sun gear CS are rotated at the same rotational speed, and the front and rear wheel power distribution device 14 is rotated substantially integrally.
- the transmission gear ratio ⁇ T of the automatic transmission 30 is smaller than 1
- the transmission gear ratio ⁇ r from the front and rear wheel power distribution device 14 to the rear wheel 34 is smaller than the transmission gear ratio ⁇ f to the front wheels 44.
- the carrier CCA on the rear wheel 34 side rotates at a lower speed than the sun gear CS on the front wheel 44 side
- the ring gear CR that is the input rotation element that is, the differential output member 22 and the ring gear SR. Is rotated at a lower speed than the carrier CCA according to the gear ratio ⁇ C.
- the speed ratio ⁇ T of the automatic transmission 30 is greater than 1
- the speed ratio ⁇ r from the front and rear wheel power distribution device 14 to the rear wheel 34 is larger than the speed ratio ⁇ f to the front wheel 44.
- the carrier CCA on the rear wheel 34 side rotates at a relatively higher speed than the sun gear CS on the front wheel 44 side, and the rotation of the ring gear CR that is the input rotation element, that is, the differential output member 22 and the ring gear SR is reversed.
- the speed is higher than that of the carrier CCA depending on the gear ratio ⁇ C.
- the automatic transmission 30 corresponds to a transmission unit, and is a stepped transmission that can be selected from a reduction-side transmission ratio with a transmission ratio ⁇ T larger than 1 to an acceleration-side transmission ratio smaller than 1.
- FIG. 2 is a diagram for explaining an example of such an automatic transmission 30.
- FIG. 2A is a skeleton diagram showing a single pinion type first planetary gear unit 50, a single pinion type second planetary gear unit 52, And a planetary gear type transmission provided with a single pinion type third planetary gear unit 54.
- the first planetary gear device 50 includes a first sun gear S1, a first carrier CA1 that supports the planetary gear so as to rotate and revolve, and a first ring gear R1 that meshes with the first sun gear S1 via the planetary gear.
- the carrier CA1 is integrally connected to the rear wheel side output shaft 26.
- the first sun gear S1 is selectively connected to a transmission case 56 (hereinafter simply referred to as a case) via a brake B0 and is stopped from rotation, and is selectively connected to a first carrier CA1 via a clutch C0. It has come to be.
- the second planetary gear device 52 includes a second sun gear S2, a second carrier CA2 that supports the planetary gear so as to rotate and revolve, and a second ring gear R2 that meshes with the second sun gear S2 via the planetary gear.
- the planetary gear device 54 includes a third sun gear S3, a third carrier CA3 that supports the planetary gear so that it can rotate and revolve, and a third ring gear R3 that meshes with the third sun gear S3 via the planetary gear.
- the second ring gear R2 is selectively connected to the first ring gear R1 via the clutch C1.
- the second sun gear S2 and the third sun gear S3 are integrally connected to each other, and are selectively connected to the first ring gear R1 via the clutch C2 and selectively connected to the case 56 via the brake B1.
- the rotation can be stopped.
- the third carrier CA3 is selectively connected to the case 56 via the brake B2 and stopped.
- the second carrier CA2 and the third ring gear R3 are integrally connected to each other and are also integrally connected to the AT output shaft 58 to output the rotation after the shift.
- the automatic transmission 30 is also configured substantially symmetrically with respect to the axis, and the lower half of the automatic transmission 30 is omitted in the skeleton diagram of FIG. 2 (a).
- the clutches C0, C1, C2 and brakes B0, B1, B2 are hydraulic friction engagement devices, and are a plurality of friction layers stacked on each other.
- a wet multi-plate type in which the plate is pressed by a hydraulic actuator, or a band brake in which one end of one or two bands wound around the outer peripheral surface of a rotating drum is tightened by a hydraulic actuator.
- the members on both sides are integrally connected.
- the O / D gear stage “O / D” is a speed-increasing gear ratio in which the gear ratio ⁇ T is smaller than 1.
- the reverse travel is executed by rotating the second motor generator MG2 in the reverse rotation direction with the automatic transmission 30 set to the first speed gear stage “1st”, for example.
- the electric differential unit 12 that functions as a continuously variable transmission and the automatic transmission 30 constitute a continuously variable transmission as a whole.
- the electric differential section 12 and the automatic transmission 30 can also constitute a state equivalent to a stepped transmission.
- the electric differential unit 12 functions as a continuously variable transmission
- the automatic transmission 30 in series with the electric differential unit 12 functions as a stepped transmission.
- the rotational speed of the differential output member 22 and further the rear wheel side output shaft 26 is steplessly changed with respect to at least one gear stage G, and a continuously variable gear ratio range is obtained in the gear stage G. .
- the gear ratio ⁇ S of the electric differential section 12 is controlled to be constant, and the clutch C and the brake B are selectively engaged to operate the first speed gear stage “1st” to the O / D gear.
- the total transmission ratio of the power transmission device 10 is obtained for each gear stage. For example, when the rotational speed NMG1 of the first motor generator MG1 is controlled so that the gear ratio ⁇ S of the electric differential unit 12 is fixed to “1”, the electric differential unit 12 and the automatic transmission 30 The total gear ratio is the same as the gear ratio ⁇ T of each gear stage of the automatic transmission 30 from the first speed gear stage “1st” to the O / D gear stage “O / D”.
- FIG. 3 illustrates a signal input to the electronic control device 80 for controlling the power transmission device 10 of the present embodiment and a signal output from the electronic control device 80.
- the electronic control unit 80 includes a so-called microcomputer including a CPU, a ROM, a RAM, an input / output interface, and the like, and performs signal processing according to a program stored in the ROM in advance while using a temporary storage function of the RAM.
- the electronic control unit 80 includes a signal indicating the engine coolant temperature TEMP W , the number of operations of the shift lever 66 (see FIG. 4) at the shift position PSH and the “M” position, etc. from each sensor and switch as shown in FIG. , A signal representing the engine rotational speed NE, which is the rotational speed of the engine 20, a signal for instructing the M mode (manual transmission travel mode), a signal representing the operation of the air conditioner, and the rotational speed N OUT of the AT output shaft 58 A signal representing the vehicle speed V to be operated, a signal representing the hydraulic oil temperature T OIL of the automatic transmission 30, a signal representing the side brake operation, a signal representing the foot brake operation, a signal representing the catalyst temperature, and a driver's required output amount.
- a signal indicating the accelerator operation amount (opening) Acc which is the operation amount of the accelerator pedal, a signal indicating the cam angle, a signal indicating the snow mode setting, and the longitudinal acceleration G of the vehicle
- a signal indicating auto cruise traveling a signal indicating the weight (vehicle weight) of the vehicle, a signal indicating the wheel speed of each wheel, a signal indicating the rotational speed NMG1 of the first motor generator MG1, and the rotation of the second motor generator MG2.
- a signal representing the speed NMG2 a signal representing the stored amount (remaining amount) SOC of the power storage device 64, a signal representing the yaw rate (yaw angular velocity) Y, a signal representing the steering angle ⁇ of the front wheels 34, and the like are supplied.
- the electronic control device 80 sends a control signal to the engine output control device 60 (see FIG. 5) for controlling the engine output, for example, the throttle valve opening ⁇ TH of the electronic throttle valve provided in the intake pipe of the engine 20.
- a drive signal to the throttle actuator for operating the fuel a fuel supply amount signal for controlling the fuel supply amount to the intake pipe or the cylinder of the engine 20 by the fuel injection device, an ignition signal for instructing the ignition timing of the engine 20 by the ignition device,
- a supercharging pressure adjustment signal for adjusting the supercharging pressure is output.
- an electric air conditioner driving signal for operating the electric air conditioner for operating the electric air conditioner, a command signal for commanding the operation of the first motor generator MG1 and the second motor generator MG2, respectively, a shift position (operation position) display signal for operating the shift indicator, A gear ratio display signal for displaying a gear ratio, a snow mode display signal for displaying that it is in a snow mode, an ABS operation signal for operating an ABS actuator for preventing wheel slipping during braking, and an M mode
- the hydraulic control circuit 70 (see FIG. 5) to control the hydraulic actuators of the M-mode display signal, the electric differential section 12 and the hydraulic friction engagement device of the automatic transmission 30 to indicate that it is selected.
- the valve command signal that activates the solenoid valve A signal for adjusting the line oil pressure PL by a regulator valve (pressure adjusting valve) provided in the circuit 70, and a drive for operating an electric oil pump which is a hydraulic source of the original pressure for adjusting the line oil pressure PL.
- a command signal, a signal for driving the electric heater, a signal to the cruise control computer, and the like are output.
- FIG. 4 is a diagram showing an example of a shift operation device 68 as a switching device for switching a plurality of types of shift positions PSH by an artificial operation.
- the shift operation device 68 includes a shift lever 66 that is disposed beside the driver's seat, for example, and is operated to select a plurality of types of shift positions PSH .
- the shift lever 66 is a “P (parking)” position for parking in which the power transmission path in the power transmission device 10 is cut off in a neutral state, that is, a neutral state, and the AT output shaft 58 of the automatic transmission 30 is locked.
- the “R (reverse)” position for reverse travel, the “N (neutral)” position for neutralizing the power transmission path in the power transmission device 10, and the automatic transmission mode (D range) are established.
- the “M” position is provided adjacent to the width direction of the vehicle at the same position as the “D” position in the longitudinal direction of the vehicle, for example, and when the shift lever 66 is operated to the “M” position, Any of the four shift ranges from the D range to the L range is selected according to the operation of the shift lever 66. Specifically, at this “M” position, an upshift position “+” and a downshift position “ ⁇ ” are provided in the front-rear direction of the vehicle, and the shift lever 66 is provided with the upshift position “+”. "Or downshift position"-", the shift range is increased or decreased one by one.
- the four shift ranges of the D range to the L range are a plurality of types of shift ranges having different speed ratios on the high speed side (side where the speed ratio is small) in the change range in which the automatic transmission control of the power transmission device 10 is possible.
- the high-speed gear stage that can change the speed of the automatic transmission 30 is reduced one by one, and the highest speed gear stage in the D range is the O / D gear stage “O / D”.
- the gear stage “3rd” is the second speed gear stage “2nd” in the second range and the first speed gear stage “1st” in the L range.
- the shift lever 66 is automatically returned from the upshift position “+” and the downshift position “ ⁇ ” to the “M” position by biasing means such as a spring.
- FIG. 5 is a functional block diagram for explaining a main part of the control function by the electronic control unit 80, and is provided with a stepped speed change control means 82 and a hybrid control means 90 functionally.
- the stepped shift control means 82 is a shift diagram shown in FIG. 6 stored in advance, that is, an upshift line (solid line) stored in advance with the vehicle speed V and the required output torque TOUT (accelerator operation amount Acc, etc.) as parameters, and Whether or not the automatic transmission 30 should be shifted based on the vehicle state indicated by the actual vehicle speed V and the required output torque TOUT according to the relationship (shift diagram, shift map) having a downshift line (one-dot chain line).
- the determination is made, that is, the gear stage of the automatic transmission 30 to be shifted is determined, and the automatic transmission control of the automatic transmission 30 is executed so that the determined gear stage is obtained.
- the stepped shift control means 82 is a hydraulic friction engagement device (for example, which is involved in the shift of the automatic transmission 30 so as to establish a predetermined gear according to the engagement table shown in FIG.
- the clutch C and the brake B) are engaged and released (shift output command, hydraulic pressure command), that is, the release-side friction engagement device involved in the shift of the automatic transmission 30 is released and the engagement-side friction engagement device is A command to execute clutch-to-clutch shift by engaging is output to the hydraulic control circuit 70.
- the hydraulic control circuit 70 changes the engagement pressure of the hydraulic friction engagement device involved in the shift according to a predetermined hydraulic pressure change pattern using a linear solenoid valve or the like to release the release side friction engagement device and Shifting of the automatic transmission 30 is executed by engaging the engagement side frictional engagement device.
- the hybrid control means 90 operates the engine 20 in an efficient operating range, controls the power distribution between the engine 20 and the second motor generator MG2, and optimizes the reaction force generated by the power generation of the first motor generator MG1.
- the gear ratio ⁇ S of the electric differential unit 12 as an electric continuously variable transmission is controlled by changing the power ratio so that That is, at the traveling vehicle speed V at that time, the target (request) output of the vehicle is calculated from the accelerator operation amount Acc as the driver's required output amount and the vehicle speed V, and the required output from the target output of the vehicle and the required charging value Calculate the total target output.
- the target engine output is calculated in consideration of the transmission loss, the auxiliary load, the assist torque of the second motor generator MG2, etc., and the engine rotational speed NE at which the target engine output is obtained.
- the engine 20 is controlled so that the engine torque TE is obtained, and the power generation amount of the first motor generator MG1 is controlled.
- the engine rotational speed NE determined to operate the engine 20 in an efficient operating range the rotational speed of the differential output member 22 determined by the vehicle speed V and the gear stage of the automatic transmission 30, that is, the rotational speed of the ring gear SR
- the electric differential section 12 is caused to function as an electric continuously variable transmission.
- the hybrid control means 90 achieves both drivability and fuel efficiency during continuously variable speed travel within a two-dimensional coordinate system composed of the engine rotational speed NE and the output torque (engine torque) TE of the engine 20.
- the engine 20 is operated along the optimum fuel consumption curve based on the optimum fuel consumption curve (fuel consumption map, relationship) of the engine 20 as shown by the broken line in FIG.
- a target value of the total gear ratio of the power transmission device 10 is determined according to the vehicle speed V, and the gear ratio ⁇ S of the electric differential unit 12 is taken into account in consideration of the gear stage of the automatic transmission 30 so as to obtain the target value. To control.
- the hybrid control means 90 supplies the electric energy generated by the first motor generator MG1 to the power storage device 64 and the second motor generator MG2 through the inverter 62, so that the main part of the power of the engine 20 is mechanically different. Although it is transmitted to the dynamic output member 22, a part of the power of the engine 20 is consumed for the power generation of the first motor generator MG1, and is converted there into electric energy. The electric energy is supplied to the second motor generator MG2 through the inverter 62, the second motor generator MG2 is driven, and the torque is applied to the rear wheel side output shaft.
- the hybrid control means 90 controls the first motor generator rotational speed NMG1 by the electric CVT function of the electric differential section 12 regardless of whether the vehicle is stopped or traveling, thereby reducing the engine rotational speed NE substantially. Keep it constant or control it to any rotation speed.
- the hybrid control means 90 controls the opening and closing of the electronic throttle valve by a throttle actuator for throttle control, controls the fuel injection amount and injection timing by the fuel injection device for fuel injection control, and controls the ignition timing.
- An engine output control means for outputting a command for controlling the ignition timing by an ignition device such as an igniter to the engine output control device 60 singly or in combination so as to generate the required engine output.
- the hybrid control means 90 can drive the motor by the electric CVT function (differential action) of the electric differential section 12 regardless of whether the engine 20 is stopped or in an idle state.
- the engine 20 in a relatively low output torque range where the engine efficiency is generally poor compared to the high torque range, that is, a low engine torque range, or in a relatively low vehicle speed range where the vehicle speed V is low, that is, a low load range, the engine 20 is A motor running is executed in which the vehicle is stopped or in an idle state and runs using only the second motor generator MG2 as a power source.
- the origin side from the solid line A that is, the low torque side or the low vehicle speed side is a predetermined motor travel region.
- the rear wheel drive travel is performed by driving only the rear wheels 34.
- the first motor generator MG1 is idled by putting it in a no-load state, and the electric differential unit 12 is electrically driven. It is desirable to maintain the engine rotational speed NE from 0 to substantially 0 by a dynamic CVT function (differential action).
- the engine 20 is operated as necessary, such as during predetermined acceleration, and travels using both the engine 20 and the second motor generator MG2 as power sources.
- the engine 20 is put into an operating state as necessary for charging or warming up the power storage device 64.
- the hybrid control means 90 uses the electric energy from the first motor generator MG1 and / or the electric energy from the power storage device 64 by the above-described electric path even when the engine is running using the engine 20 as a power source.
- the so-called torque assist for assisting the power of the engine 20 is possible by supplying the torque to the rear wheel 34 by supplying the torque to the rear wheel 34 by supplying the second motor generator MG2 to the generator MG2.
- the second motor generator MG2 is power-running to perform torque assist.
- the outside of the solid line A that is, the high torque side or the high vehicle speed side is an engine running region where the engine runs, but torque assist is performed by the second motor generator MG2 as necessary.
- the entire region is the engine travel region, and torque assist is performed by the second motor generator MG2 with the electric energy obtained by regenerative control of the first motor generator MG1. You may come to be.
- the hybrid control means 90 makes the first motor generator MG1 in a no-load state and freely rotates, that is, idles, so that the electric differential unit 12 cannot transmit torque, that is, the power in the electric differential unit 12 It is possible to make the state equivalent to the state where the transmission path is cut off and the state where the output from the power generation device 11 is not generated. That is, the hybrid control means 90 sets the electric differential unit 12 to a neutral state (neutral state) in which the power transmission path is electrically cut off by setting the first motor generator MG1 to a no-load state. Is possible.
- the hybrid control means 90 is provided with the kinetic energy of the vehicle, that is, the reverse driving force input from the rear wheel 34, in order to improve fuel efficiency, for example, during coasting when the accelerator is off (during coasting) or when braking with a foot brake.
- the second motor generator MG2 When the second motor generator MG2 is driven to rotate, the second motor generator MG2 is regeneratively controlled to operate as a power generator, and the regenerative control means charges the electrical energy to the power storage device 64 via the inverter 62. It has the function of.
- This regeneration control is controlled so that the regeneration amount is determined based on the storage capacity SOC of the power storage device 64 and the braking force distribution of the braking force by the hydraulic brake to obtain the braking force according to the brake pedal operation amount.
- the power transmission device 10 for the front and rear wheel drive vehicle of the present embodiment can represent the rotational speeds of the three rotational elements (CS, CCA, CR) of the front and rear wheel power distribution device 14 on a straight line in FIG.
- the input rotation element, the first output rotation element, and the second output rotation element are configured in order from one end to the other end.
- the ring gear CR of the single-pinion type planetary gear unit 24 for distribution is connected to the differential output member 22 by an input rotation element
- the carrier CCA is connected to the rear wheel side output shaft 26 by a first output rotation element.
- the sun gear CS is connected to the front wheel side output gear 28 by the second output rotation element.
- the differential rotation of the rotation speed Ncca of the carrier CCA that is the first output rotation element and the rotation speed Ncs of the sun gear CS that is the second output rotation element is limited by the rotation speed Ncr of the ring gear CR that is the input rotation element.
- the differential rotation of the rear wheel 34 and the front wheel 44 connected thereto is limited.
- the rotational speeds Ncca and Ncs of the first output rotation element (carrier CCA) and the second output rotation element (sun gear CS) are regulated so that Ncs is connected in a straight line.
- the rotational speed Ncr of the input rotational element (ring gear CR) by controlling the rotational speed of the first motor generator MG1 of the power generation device 11, the first output rotational element (carrier CCA) and the second output rotational element (
- the differential rotation of the sun gear CS) can be limited, or a predetermined differential state can be obtained during turning.
- the rotation speed control of the first motor generator MG1 is performed by feedback control or the like so that the actual first motor generator rotation speed NMG1 becomes a predetermined target rotation speed.
- the rotational speed Ncr of the input rotational element can be easily changed. It is possible to control the height, thereby limiting or allowing the differential between the front and rear wheels.
- the torque of the first motor generator MG1 is increased to limit the rotation speed change of the input rotation element (ring gear CR)
- the differential rotation of the first output rotation element (carrier CCA) and the second output rotation element (sun gear CS) is caused. Further, the differential rotation of the rear wheel 34 and the front wheel 44 connected thereto is limited.
- the hybrid control means 90 functionally includes front and rear wheel differential control means 92 for controlling the front and rear wheel differential.
- the front / rear wheel differential control means 92 is configured to turn while limiting the differential rotation between the carrier CCA as the first output rotation element and the sun gear CS as the second output rotation element during straight running based on the vehicle running state.
- the operating point of the first motor generator MG1 that allows differential rotation of the carrier CCA and the sun gear CS here, the differential allowable target rotational speed NMG1def is calculated, and is operated at the differential allowable target rotational speed NMG1def. In this way, the first motor generator MG1 is controlled, and specifically, signal processing is executed according to the flowchart of FIG.
- step S1 of FIG. 9 the vehicle speed V, the steering angle ⁇ , the throttle valve opening ⁇ TH, etc. are read as parameters representing the vehicle running state that affects the differential between the front and rear wheels.
- step S2 based on these parameters.
- This rotational speed difference ⁇ N is caused by the difference between the turning trajectories of the front wheels 44 and the rear wheels 34 as shown in FIGS. 10 (a) and 10 (b). Can be obtained from the turning trajectory.
- the rotational speed difference ⁇ N can be obtained by various conventionally known calculation methods.
- the turning trajectories of the front wheels 44 and the rear wheels 34 are represented by vehicle speeds as shown in FIGS. 10 (a) and 10 (b).
- the turning trajectory can be obtained geometrically based on the steering angle ⁇ and vehicle specifications (wheelbase, etc.), and the wheels 44 and 34 It rolls and rotates along the turning trajectory.
- the turning locus radius rf of the front wheel 44 is larger than the turning locus radius rr of the rear wheel 34.
- a rotational speed difference ⁇ N is obtained by obtaining a moving distance and further a rotational speed of each wheel 44, 34.
- the rotational speed difference ⁇ N can be calculated from a predetermined arithmetic expression or data map using the steering angle ⁇ and the vehicle speed V as parameters.
- FIG. 10 (b) shows a case of high-speed turning, where the turning trajectory is determined by the balance between the cornering forces of the front and rear wheels and the centrifugal force, and there is a slip (slip) between the rolling rotation direction of the wheels 44 and 34 and the turning trajectory. Corner).
- This deviation that is, the slip angle increases with an increase in the vehicle speed V as shown in FIG. 10 (c).
- the turning locus radius rr of the rear wheel 34 becomes larger than the turning locus radius rf of the front wheel 44.
- FIG. 10B shows a case where the turning locus radius rr of the rear wheel 34 is larger than the turning locus radius rf of the front wheel 44.
- the rear wheel 34 is the same as in FIG. Is smaller than the turning locus radius rf of the front wheel 44.
- the cornering force is determined by the steering angle ⁇ , the vehicle speed V, the output of the power source, that is, the throttle valve opening ⁇ TH , the yaw rate Y, the vehicle specifications such as the wheel base, etc.
- the center of gravity C moves on an arc having a radius r at an angular velocity determined according to the vehicle speed V
- the moving distance of the wheels 44 and 34 and further the rotational speed are calculated in consideration of the slip angle.
- the rotational speed difference ⁇ N can be calculated.
- the rotational speed difference ⁇ N can be calculated by a predetermined calculation formula or data map using the steering angle ⁇ , the vehicle speed V, the throttle valve opening ⁇ TH, and the like as parameters. It is also possible to obtain the rotational speed difference ⁇ N with finer and higher precision in consideration of other parameters that affect the front-rear wheel differential such as the vehicle weight and the road surface friction coefficient ⁇ .
- step S3 the rotational speed Ncrdef of the input rotational element (ring gear CR) that allows the front-rear wheel differential of the rotational speed difference ⁇ N is set to the gear ratio ⁇ C of the distribution planetary gear unit 24, the front wheel side transmission ratio ⁇ f, the rear wheel side. It is calculated according to the following equation (1) determined using the gear ratio ⁇ r. Equation (1) is a basic equation representing the relationship between the rotational speeds of the three rotating elements of the single pinion type planetary gear device, and is obtained when the rotational speed difference ⁇ N is changed by half between the front and rear wheels. The solid line shown in the collinear diagram of FIG.
- the automatic transmission 30 is the O / D gear stage “O / D”
- the speed ratio ⁇ T is smaller than 1, and ⁇ r ⁇ f and Ncr ⁇ Ncca ⁇ Ncs (broken line).
- the turning locus radius rr of the rear wheel 34 becomes smaller than the turning locus radius rf of the front wheel 44
- the rotational speed Nf of the front wheel 44 increases by ⁇ N / 2
- the rotational speed Nr of the rear wheel 34 becomes ⁇ N /. This is the case when it is lowered by two.
- the rotational speed changes ⁇ Nf and ⁇ Nr due to differential are obtained separately for each of the front wheels 44 and the rear wheels 34, or the front wheels 44 after the differential is generated.
- the rotational speed Nfdef, Nrdef of the rear wheel 34 itself may be calculated, or the rotational speed Ncrdef of the ring gear CR that allows the front-rear wheel differential may be calculated according to the same arithmetic expression as the expression (1).
- Ncrdef ⁇ Ncca- ( ⁇ N / 2) ⁇ ⁇ r ⁇ ⁇ (1 + ⁇ C) -(Ncs + ( ⁇ N / 2) ⁇ ⁇ f) ⁇ ⁇ C (1)
- the rotation speed Ncr of the input rotation element becomes the ⁇ N allowable rotation speed Ncrdef that allows the rotation speed difference ⁇ N without changing the engine rotation speed NE.
- the differential allowable target rotational speed NMG1def is calculated according to the following equation (2) determined using the gear ratio ⁇ S of the differential planetary gear unit 16.
- the first motor generator MG1 is controlled by feedback control or feedforward control so that the rotation speed NMG1 of the first motor generator MG1 becomes the differential allowable target rotation speed NMG1def.
- the rotational speed Ncr of the ring gear CR that is the input rotational element of the distribution planetary gear unit 24 becomes the ⁇ N allowable rotational speed Ncrdef
- the rotational speed Nf of the front wheels 44 is only ⁇ N / 2 from the reference rotational speed corresponding to the vehicle speed V.
- the differential rotation of the front and rear wheels in which the rotational speed Nr of the rear wheel 34 changes by - ⁇ N / 2 from the reference rotational speed corresponding to the vehicle speed V is permitted, and the vehicle speed V, the steering angle ⁇ , the throttle valve opening Smooth turning performance can be obtained according to the vehicle running condition such as ⁇ TH .
- FIG. 11 shows a case where the turning trajectory radius rr of the rear wheel 34 is smaller than the turning trajectory radius rf of the front wheel 44 during turning, and the rotational speed Nf of the front wheel 44 increases by ⁇ N / 2 and the rotational speed of the rear wheel 34.
- Rotational speed NMG1 of first motor generator MG1 is increased so as to allow Nr to decrease by ⁇ N / 2.
- FIG. 10B when the turning locus radius rr of the rear wheel 34 becomes larger than the turning locus radius rf of the front wheel 44 during turning, the rotational speed Nf of the front wheel 44 is ⁇ N / 2.
- the rotation speed NMG1 of the first motor generator MG1 is lowered so as to allow the rotation speed Nr of the rear wheel 34 to increase by ⁇ N / 2 while decreasing, and power running control is performed in the reverse rotation direction as necessary.
- FIG. 12 is a flowchart for explaining another example of the front and rear wheel differential control executed by the front and rear wheel differential control means 92.
- the torque TMG1 of the first motor generator MG1 is increased or decreased based on the actual yaw rate Y.
- the differential is limited so that oversteer is suppressed, or the differential is allowed so that understeer is suppressed, and such increase / decrease correction of the torque TMG1 of the first motor generator MG1 is performed.
- the torque TMG2 of the second motor generator MG2 that is the auxiliary power source is corrected to increase or decrease.
- the engine torque is increased and corrected instead to prevent the engine rotation speed NE from decreasing.
- step R1 and R2 the vehicle speed V and the like are read in the same manner as in steps S1 and S2 of FIG. 9, and the rotational speed difference between the front and rear wheels is determined based on the vehicle speed V and the like.
- ⁇ N is calculated.
- step R3 the actual yaw rate Y detected by the yaw rate sensor is read.
- step R4 whether or not the yaw rate Y is larger than a determination value (Yr + ⁇ y) obtained by adding the allowable deviation ⁇ y to a predetermined target yaw rate Yr. In other words, it is determined whether or not there is an oversteer tendency.
- the target yaw rate Yr is an optimum value for obtaining an appropriate turning performance.
- the vehicle speed V, the steering angle ⁇ , the throttle valve opening ⁇ TH , the vehicle running state such as the rotational speed difference ⁇ N obtained in step R2, and the vehicle such as the wheel base It is predetermined based on specifications and the like, and is set by a data map or the like using these as parameters.
- FIG. 13 is a diagram showing the relationship between the target yaw rate Yr and the vehicle speed V under a predetermined condition, and the target yaw rate Yr increases in proportion to the vehicle speed V.
- the target yaw rate Yr can be set more finely in consideration of other parameters such as vehicle weight and lateral acceleration.
- the allowable deviation ⁇ y is for preventing frequent switching between differential control for oversteering at step R5 and below and differential control for understeering at step R8 and below, and a constant value may be set.
- the vehicle speed V is determined to become larger as the vehicle speed V increases, that is, as the target yaw rate Yr increases.
- step R5 If the determination in step R4 is YES (positive), that is, if the oversteer tendency of Y> Yr + ⁇ y, step R5 and subsequent steps are subsequently executed.
- step R5 since the differential between the front and rear wheels is limited so that oversteer is suppressed, the first motor generator MG1 and the engine 20 are controlled so that changes in the rotational speed of the input rotation element (ring gear CR) are suppressed. Perform output increase control. That is, when the rotational speed Ncr of the input rotational element (ring gear CR) decreases due to oversteering, for example, as shown by a solid line in FIG. 11, a change in rotational speed of the first motor generator MG1 is suppressed to prevent this.
- the torque TMG1 when performing the rotational speed control of the first motor generator MG1 is increased and corrected by a predetermined correction amount ⁇ TMG1o, and instead, the torque TE of the engine 20 is prevented from decreasing. Is increased by a predetermined correction amount ⁇ TEo. Specifically, the throttle valve opening ⁇ TH is increased.
- the correction amounts ⁇ TMG1o and ⁇ TEo may be set in advance, but in accordance with the deviation between the actual yaw rate Y and the target yaw rate Yr, the correction amounts ⁇ TMG1o and ⁇ TEo become larger as the deviation increases. It may be set by a formula or a data map.
- step R5 When the output increase control of the first motor generator MG1 and the engine 20 is performed in step R5, the driving force of the vehicle increases. In the next step R6, the second motor is controlled so as to cancel this driving force change. Torque TMG2 of generator MG2 is decreased by correction amount ⁇ TMG2o.
- the correction amount ⁇ TMG2o is set according to the correction amounts ⁇ TMG1o and ⁇ TEo.
- step R4 determines whether there is no oversteer tendency of Y> Yr + ⁇ y.
- the allowable deviation ⁇ y at this time may be the same as the value at the time of oversteer determination, but a different value can also be set. If the understeering tendency of Y ⁇ Yr ⁇ y, step R8 and subsequent steps are subsequently executed.
- step R8 the output reduction control of the first motor generator MG1 is performed so that the change in the rotational speed of the input rotation element (ring gear CR) is allowed in order to allow the differential of the front and rear wheels to suppress understeer.
- the rotation speed NMG1 of the first motor generator MG1 is likely to change.
- the torque TMG1 when performing the rotational speed control of the first motor generator MG1 is corrected to decrease by a predetermined correction amount ⁇ TMG1u.
- the correction amount ⁇ TMG1u may be set to a fixed value in advance.
- step R8 since the load on the engine 20 does not increase, it is not necessary to increase and correct the torque TE of the engine 20 as in step R5.
- step R8 When the output reduction control of the first motor generator MG1 is performed in step R8, the driving force of the vehicle is reduced. Therefore, in the next step R9, the second motor generator MG2 is controlled so as to cancel out this driving force change.
- the torque TMG2 is increased by the correction amount ⁇ TMG2u.
- the correction amount ⁇ TMG2u is set according to the correction amount ⁇ TMG1u.
- step R10 is executed.
- the front / rear wheel differential control is performed with respect to the output control of the engine 20, the first motor generator MG1, and the second motor generator MG2. The current output control is maintained without additional correction.
- the operating state of the first motor generator MG1 that is, the rotational speed NMG1 is controlled, or the flowchart of FIG.
- the differential rotation of the first output rotation element (carrier CCA) and the second output rotation element (sun gear CS) is limited or allowed. Therefore, it is not necessary to separately provide mechanical differential control means such as a clutch and a disc spring, and the apparatus is configured simply and inexpensively.
- the power transmission device 10 of the present embodiment has an electric differential section 12, and the rotational speed of the differential output member 22, that is, the front and rear, is determined by the rotational speeds NMG1 and NE of both the first motor generator MG1 and the engine 20. Since the rotational speed Ncr of the input rotational element (ring gear CR) of the wheel power distribution device 14 is determined, the rotational speed Ncr is controlled by the rotational speed control of the first motor generator MG1 as shown in the flowchart of FIG.
- the differential rotation can be limited or set to a predetermined differential state. Further, as shown in the flowchart of FIG. 12, the torque control of the first motor generator MG1 can limit the differential rotation of the front and rear wheels or allow the differential. In that case, when the reverse input torque from the wheels 34, 44 changes suddenly, the load torque is absorbed by a change in the rotational speed of the engine 20, and an excessive load is applied to the first motor generator MG1 and other rotating elements. It can be prevented from acting.
- the first output rotation element (carrier CCA) and the second output rotation are based on the vehicle running state such as the vehicle speed V, the steering angle ⁇ , and the throttle valve opening ⁇ TH.
- the operating point of the first motor generator MG1 in which the element (sun gear CS) is in a predetermined differential state, that is, the differential allowable target rotational speed NMG1def is calculated, and the first motor generator MG1 is operated so as to be operated at the differential allowable target rotational speed NMG1def.
- control 1 motor generator MG1 it is possible to prevent the occurrence of a tight corner brake phenomenon or to suppress understeer by allowing differential rotation during turning while limiting differential rotation during straight traveling. it can.
- step R5 the torque TMG1 is increased and corrected so that the change in the rotation speed of the first motor generator MG1 is suppressed, and the change in the rotation speed of the differential input shaft 18, that is, the engine rotation speed NE is suppressed.
- the torque TE of the engine 20 is increased and corrected, oversteer during turning due to the differential increase of the first output rotation element (carrier CCA) and the second output rotation element (sun gear CS) is appropriately suppressed.
- FIG. 14 (a) and 14 (b) are skeleton diagrams illustrating another example of the front and rear wheel power distribution device 14.
- FIG. The front / rear wheel power distribution device 210 in FIG. 14 (a) is a front / rear wheel drive vehicle based on a horizontally mounted front wheel drive vehicle, and the ring gear CR of the differential planetary gear device 24 is an input rotation element.
- a front wheel side output shaft 212 is connected to the carrier CCA as the first output rotation element, and the second motor generator MG2 and the front wheel side output shaft 212 are connected to the front wheel side output shaft 212.
- the rear wheel side output gear 214 is connected to the sun gear CS as the second output rotation element.
- the front / rear wheel power distribution device 220 in FIG. 14 has the sun gear CS of the differential planetary gear unit 24 connected to the differential output member 22 through an input rotation element, and the carrier CCA as a first output rotation element.
- the ring gear CR is connected to the front wheel side output gear 28 by the second output rotating element.
- the front / rear wheel power distribution device 220 can also be applied to a front / rear wheel drive vehicle based on a horizontally mounted front wheel drive vehicle as shown in (a).
- the first output The front wheel side output shaft 212 may be connected to the carrier CCA that is a rotating element
- the rear wheel side output gear 214 may be connected to the ring gear CR that is the second output rotating element.
- FIG. 15 (a) and 15 (b) are skeleton diagrams illustrating still another example of the front and rear wheel power distribution device 14, and a double pinion type distribution planetary gear device is used instead of the distribution planetary gear device 24. 232 is used.
- the front and rear wheel power distribution device 230 has a sun gear CS of the distribution planetary gear device 232 connected to the differential output member 22 through an input rotation element, and a ring gear CR as a first output rotation element.
- the carrier CCA is connected to the wheel side output shaft 26, and the carrier CCA is connected to the front wheel side output gear 28 by the second output rotating element. Also in this case, the same effect as that of the above embodiment can be obtained.
- the front and rear wheel power distribution device 230 can also be applied to a front and rear wheel drive vehicle based on a horizontally mounted front wheel drive vehicle. As shown in parentheses, the ring gear CR as the first output rotation element is shown. The front wheel side output shaft 212 may be connected to the rear wheel side output gear 214 to the carrier CCA as the second output rotation element.
- the front / rear wheel power distribution device 240 of FIG. 15 is configured such that the carrier CCA of the distribution planetary gear device 232 is connected to the differential output member 22 by an input rotation element, and the ring gear CR is a first output rotation element.
- the sun gear CS is connected to the front wheel side output gear 28 by a second output rotating element.
- the front and rear wheel power distribution device 240 can also be applied to a front and rear wheel drive vehicle based on a horizontally mounted front wheel drive vehicle. As shown in parentheses, the ring gear CR that is the first output rotation element is shown.
- the front wheel side output shaft 212 may be connected to the rear wheel side output gear 214 to the sun gear CS as the second output rotation element.
- FIG. 16 is a collinear diagram illustrating another example of the electric differential unit 12.
- the electric differential unit 250 includes a first motor generator MG 1 connected to the sun gear SS of the differential planetary gear device 16. The connection is the same, but the differential output member 22 is connected to the carrier SCA located in the middle in the collinear diagram, the differential input shaft 18 is connected to the ring gear SR, and the engine 20 is connected. Is the case. In this case, first motor generator MG1 is rotated in the reverse rotation direction, and regenerative control is performed so that the regenerative torque is applied to sun gear SS so that the reaction force is received and power is output from carrier SCA. .
- FIG. 17 is a skeleton diagram illustrating still another embodiment of the present invention.
- the power transmission device 260 is different from the power transmission device 10 in the power generation device 262.
- the power generation device 262 is configured only by the first motor generator MG1, and the power transmission member 264 is provided.
- FIG. 18 is a skeleton diagram illustrating still another embodiment of the present invention.
- This power transmission device 270 is a case where the present invention is applied to the left and right wheel power distribution device 272.
- This left and right wheel power distribution device 272 is a single pinion type distribution planetary gear device 24 as in the first embodiment. Is the main constituent.
- the ring gear CR of the distribution planetary gear unit 24 is an input rotation element, and power is transmitted from the power generation device 11 via the power transmission shaft 274 and the like.
- the power transmission shaft 274 is provided with the automatic transmission 30 or the like as necessary.
- the carrier CCA is operatively connected to the left wheel 276L with a first output rotation element, and the sun gear CS is operatively connected to the right wheel 276R with a second output rotation element.
- the left wheel 276L corresponds to the first wheel
- the right wheel 276R corresponds to the second wheel.
- the first output rotation element (carrier CCA) and the second output rotation element (sun gear CS) are controlled by controlling the operating state of the first motor generator MG1, that is, the rotation speed NMG1 and the torque TMG1.
- Differential rotation that is, differential rotation of the left and right wheels 276L, 276R can be limited or allowed, so there is no need to provide a mechanical differential control means such as a clutch or a disc spring.
- a mechanical differential control means such as a clutch or a disc spring.
- the electric differential units 12 and 250 of the above-described embodiment both use the single pinion type differential planetary gear unit 16 as a differential mechanism, a double pinion type planetary gear unit is adopted. It is also possible.
- the automatic transmission 30 was mounted in any of the above-described embodiments, the automatic transmission 30 is not always essential when the present invention is implemented.
- the vehicle power transmission device includes an input rotation element and a first rotation element in order from one end to the other end on a collinear diagram that can represent the rotation speeds of the three rotation elements of the power distribution device on a straight line. Since it is configured to be an output rotation element and a second output rotation element, the operating state of the rotating machine of the power generation device, that is, the rotation speed and torque are controlled to change the rotation speed of the input rotation element and the rotation speed thereof. By controlling the ease of operation, the differential rotation of the first output rotation element and the second output rotation element can be limited or allowed. Accordingly, there is no need to separately provide mechanical differential control means such as a clutch and a disc spring, and the apparatus is configured simply and inexpensively. For example, a front and rear wheel power distribution device that distributes power to front and rear wheels It is suitably applied to a vehicle having a power distribution device such as.
Abstract
Description
図1は、本発明の一実施例であるハイブリッド駆動型の前後輪駆動車両の動力伝達装置10を説明する骨子図で、動力発生装置11および前後輪動力分配装置14を備えている。動力発生装置11は、主動力源として用いられるエンジン20と電気式差動部12とから成り、電気式差動部12は、差動機構としてシングルピニオン型の差動用遊星歯車装置16を備えている。差動用遊星歯車装置16のキャリアSCAには、差動入力部材としての差動入力軸18等を介してエンジン20が連結されているとともに、サンギヤSSには第1モータジェネレータMG1が連結されており、リングギヤSRには差動出力部材22が一体的に連結されている。エンジン20はガソリンエンジンやディーゼルエンジン等の内燃機関で、差動入力軸18に直接或いは図示しない脈動吸収ダンパー等を介して間接的に連結されている。第1モータジェネレータMG1は回転機として設けられたもので、電動モータおよび発電機の両方の機能を選択的に発揮できるが、本実施例では主として発電機として用いられる。
前記ハイブリッド制御手段90は、図5の機能ブロック線図に示すように、前後輪の差動を制御するための前後輪差動制御手段92を機能的に備えている。前後輪差動制御手段92は、車両走行状態に基づいて、直進走行時には第1出力回転要素であるキャリアCCAと第2出力回転要素であるサンギヤCSとの差動回転を制限しつつ、旋回走行時にはそれ等のキャリアCCAおよびサンギヤCSの差動回転を許容する第1モータジェネレータMG1の運転点、ここでは差動許容目標回転速度NMG1def を算出し、その差動許容目標回転速度NMG1def で運転させられるように第1モータジェネレータMG1を制御するもので、具体的には図9のフローチャートに従って信号処理を実行する。
Ncrdef ={Ncca -(ΔN/2)・γr}・(1+ρC)
-(Ncs+(ΔN/2)・γf)・ρC ・・・(1)
NMG1def =Nsca ・(1+ρS)-Nsr
=NE・(1+ρS)-Ncrdef ・・・(2)
Claims (5)
- 電気的にトルク制御可能な回転機を備えている動力発生装置と、
入力回転要素、第1車輪に作動的に連結された第1出力回転要素、および第2車輪に作動的に連結された第2出力回転要素の3つの回転要素から成り、前記動力発生装置から該入力回転要素に入力された動力を該第1出力回転要素と該第2出力回転要素とに分配する動力分配装置と、
を有する車両用動力伝達装置において、
前記動力分配装置は、前記3つの回転要素の回転速度を直線上で表すことができる共線図上において、一端から他端に向かって順番に前記入力回転要素、前記第1出力回転要素、前記第2出力回転要素となるように構成されているとともに、
前記第1出力回転要素と前記第2出力回転要素とが所定の差動状態となるように前記回転機の運転状態が制御される
ことを特徴とする車両用動力伝達装置。 - 前記動力発生装置は、
前記回転機が差動機構に動力伝達可能に連結され、該回転機の運転状態が制御されることにより差動入力部材の回転速度と差動出力部材の回転速度との差動状態が制御される電気式差動部と、
前記差動入力部材に動力伝達可能に連結された動力源と、
を有するものである
ことを特徴とする第1項に記載の車両用動力伝達装置。 - 車両走行状態に基づいて、前記第1出力回転要素と前記第2出力回転要素とが所定の差動状態となる前記回転機の運転点を算出し、該運転点で運転させられるように該回転機を制御する
ことを特徴とする第1項または第2項に記載の車両用動力伝達装置。 - 前記第1出力回転要素と前記第2出力回転要素とが互いに差動制限されるように前記回転機の回転速度変化を抑制する
ことを特徴とする第1項~第3項の何れか1項に記載の車両用動力伝達装置。 - 前記第1出力回転要素と前記第2出力回転要素とが互いに差動制限されるように、前記回転機の回転速度変化を抑制するとともに、該回転機の回転速度変化の抑制で前記差動入力部材の回転速度が変化することを抑制するように前記動力源を制御する
ことを特徴とする第2項に記載の車両用動力伝達装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010542762A JP5195919B2 (ja) | 2008-12-15 | 2008-12-15 | 車両用動力伝達装置 |
DE112008004176.8T DE112008004176B4 (de) | 2008-12-15 | 2008-12-15 | Fahrzeugleistungsübertragungsvorrichtung |
US13/139,914 US8535189B2 (en) | 2008-12-15 | 2008-12-15 | Vehicle power transmission device |
CN200880132350.6A CN102245419B (zh) | 2008-12-15 | 2008-12-15 | 车辆用动力传递装置 |
PCT/JP2008/072791 WO2010070725A1 (ja) | 2008-12-15 | 2008-12-15 | 車両用動力伝達装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2008/072791 WO2010070725A1 (ja) | 2008-12-15 | 2008-12-15 | 車両用動力伝達装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010070725A1 true WO2010070725A1 (ja) | 2010-06-24 |
Family
ID=42268416
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/072791 WO2010070725A1 (ja) | 2008-12-15 | 2008-12-15 | 車両用動力伝達装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8535189B2 (ja) |
JP (1) | JP5195919B2 (ja) |
CN (1) | CN102245419B (ja) |
DE (1) | DE112008004176B4 (ja) |
WO (1) | WO2010070725A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012005263A1 (ja) * | 2010-07-09 | 2012-01-12 | 日産自動車株式会社 | 四輪駆動車両の駆動力配分制御装置 |
CN105216613A (zh) * | 2015-10-14 | 2016-01-06 | 北京科技大学 | 一种用于地下重载矿用车辆的纯电动驱动桥系统 |
RU2711370C1 (ru) * | 2018-08-23 | 2020-01-16 | Тойота Дзидося Кабусики Кайся | Гибридное транспортное средство |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5170256B2 (ja) * | 2008-12-09 | 2013-03-27 | トヨタ自動車株式会社 | 前後輪駆動車両の動力伝達装置 |
US11161403B2 (en) | 2012-02-03 | 2021-11-02 | Ge Hybrid Technologies, Llc | Apparatus and method for delivering power in a hybrid vehicle |
JP6259773B2 (ja) * | 2012-02-03 | 2018-01-10 | ジーイー・ハイブリッド・テクノロジーズ・エルエルシー | ハイブリッド車両において動力を供給するための装置および方法 |
EP2896527B1 (en) * | 2012-09-14 | 2020-06-10 | Toyota Jidosha Kabushiki Kaisha | Power transmission device for hybrid vehicle, and hybrid system |
CN103978881B (zh) * | 2013-02-08 | 2016-06-15 | 财团法人工业技术研究院 | 混合动力机构及其动力混合模式 |
US9783061B2 (en) * | 2015-03-18 | 2017-10-10 | E-Aam Driveline Systems Ab | Method for operating an electric drive module |
DE102015213664B4 (de) * | 2015-07-21 | 2022-04-21 | Zf Friedrichshafen Ag | Getriebe für ein Kraftfahrzeug |
EP3368360B1 (en) | 2015-10-27 | 2023-06-07 | The Regents of The University of Michigan | Hybrid all-wheel drive system having dynamic clutches |
KR101688334B1 (ko) * | 2015-12-29 | 2017-01-02 | 한국과학기술원 | 다중모드를 구비한 하이브리드 자동차용 구동장치 |
JP6301991B2 (ja) * | 2016-03-29 | 2018-03-28 | 株式会社Subaru | ハイブリッド車両システム |
CN105782368B (zh) * | 2016-04-11 | 2019-01-25 | 同济大学 | 一种转速耦合型混合动力车用电动化分动器 |
CN106183778B (zh) * | 2016-07-06 | 2018-09-25 | 南京理工大学 | 双输出混合动力传动驱动装置 |
CN106114195B (zh) * | 2016-07-06 | 2018-07-31 | 南京理工大学 | 一种多模四驱混合动力传动驱动装置 |
JP6520890B2 (ja) * | 2016-11-02 | 2019-05-29 | トヨタ自動車株式会社 | 四輪駆動車の挙動制御装置 |
JP6729441B2 (ja) | 2017-02-20 | 2020-07-22 | トヨタ自動車株式会社 | 四輪駆動車両の制御装置 |
DE102017111041B3 (de) * | 2017-05-22 | 2018-11-08 | Schaeffler Technologies AG & Co. KG | Antriebsvorrichtung für ein Kraftfahrzeug |
JP7196801B2 (ja) * | 2019-09-09 | 2022-12-27 | トヨタ自動車株式会社 | 電動車両 |
EP3868590B1 (en) * | 2020-02-20 | 2022-11-23 | Toyota Jidosha Kabushiki Kaisha | Power transmission device |
KR20220007904A (ko) * | 2020-07-10 | 2022-01-20 | 현대자동차주식회사 | 차량의 파워트레인 및 제동 제어 방법 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001260684A (ja) * | 2000-03-16 | 2001-09-26 | Toyota Motor Corp | 前後輪駆動車 |
JP2003032802A (ja) * | 2001-07-11 | 2003-01-31 | Toyota Motor Corp | 動力出力装置およびこれを備える自動車 |
JP2003335143A (ja) * | 2002-05-20 | 2003-11-25 | Toyoda Mach Works Ltd | アクティブ四輪駆動装置 |
JP2004114944A (ja) * | 2002-09-27 | 2004-04-15 | Toyota Motor Corp | ハイブリッド車の駆動装置 |
JP2006131132A (ja) * | 2004-11-08 | 2006-05-25 | Nissan Motor Co Ltd | ハイブリッド4輪駆動システム |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6081042A (en) | 1996-03-22 | 2000-06-27 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle drive system including controllable device between engine and electric motor and vehicle drive wheels, and apparatus for controlling the device depending upon selected operation mode of the system |
JP2005075095A (ja) | 2003-08-29 | 2005-03-24 | Toyota Motor Corp | ハイブリッド車の駆動装置 |
US7235029B2 (en) * | 2004-05-21 | 2007-06-26 | General Motors Corporation | Integrated motor clutch for electrically variable transmissions |
JP4225314B2 (ja) * | 2005-12-26 | 2009-02-18 | トヨタ自動車株式会社 | ハイブリッド車両 |
JP5034532B2 (ja) * | 2006-03-10 | 2012-09-26 | 日産自動車株式会社 | 駆動力配分装置 |
JP2008062732A (ja) * | 2006-09-06 | 2008-03-21 | Toyota Motor Corp | ハイブリッド車両 |
JP4962000B2 (ja) | 2006-12-25 | 2012-06-27 | トヨタ自動車株式会社 | 車両用駆動装置の制御装置 |
JP4840135B2 (ja) | 2006-12-30 | 2011-12-21 | トヨタ自動車株式会社 | 車両用駆動装置の制御装置 |
JP4591472B2 (ja) | 2007-04-13 | 2010-12-01 | トヨタ自動車株式会社 | ハイブリッド車両用駆動装置の制御装置 |
JP4909807B2 (ja) * | 2007-05-25 | 2012-04-04 | 本田技研工業株式会社 | ハイブリッド車両の駆動装置 |
JP5170256B2 (ja) | 2008-12-09 | 2013-03-27 | トヨタ自動車株式会社 | 前後輪駆動車両の動力伝達装置 |
-
2008
- 2008-12-15 CN CN200880132350.6A patent/CN102245419B/zh not_active Expired - Fee Related
- 2008-12-15 US US13/139,914 patent/US8535189B2/en active Active
- 2008-12-15 WO PCT/JP2008/072791 patent/WO2010070725A1/ja active Application Filing
- 2008-12-15 DE DE112008004176.8T patent/DE112008004176B4/de not_active Expired - Fee Related
- 2008-12-15 JP JP2010542762A patent/JP5195919B2/ja not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001260684A (ja) * | 2000-03-16 | 2001-09-26 | Toyota Motor Corp | 前後輪駆動車 |
JP2003032802A (ja) * | 2001-07-11 | 2003-01-31 | Toyota Motor Corp | 動力出力装置およびこれを備える自動車 |
JP2003335143A (ja) * | 2002-05-20 | 2003-11-25 | Toyoda Mach Works Ltd | アクティブ四輪駆動装置 |
JP2004114944A (ja) * | 2002-09-27 | 2004-04-15 | Toyota Motor Corp | ハイブリッド車の駆動装置 |
JP2006131132A (ja) * | 2004-11-08 | 2006-05-25 | Nissan Motor Co Ltd | ハイブリッド4輪駆動システム |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012005263A1 (ja) * | 2010-07-09 | 2012-01-12 | 日産自動車株式会社 | 四輪駆動車両の駆動力配分制御装置 |
JP2012017052A (ja) * | 2010-07-09 | 2012-01-26 | Nissan Motor Co Ltd | 四輪駆動車両の駆動力配分制御装置 |
CN102958735A (zh) * | 2010-07-09 | 2013-03-06 | 日产自动车株式会社 | 四轮驱动车辆的驱动力分配控制装置 |
US8948991B2 (en) | 2010-07-09 | 2015-02-03 | Nissan Motor Co., Ltd. | Left-right wheel drive force distribution control apparatus for a vehicle |
CN105216613A (zh) * | 2015-10-14 | 2016-01-06 | 北京科技大学 | 一种用于地下重载矿用车辆的纯电动驱动桥系统 |
RU2711370C1 (ru) * | 2018-08-23 | 2020-01-16 | Тойота Дзидося Кабусики Кайся | Гибридное транспортное средство |
Also Published As
Publication number | Publication date |
---|---|
US8535189B2 (en) | 2013-09-17 |
CN102245419A (zh) | 2011-11-16 |
JPWO2010070725A1 (ja) | 2012-05-24 |
DE112008004176B4 (de) | 2019-03-21 |
US20110314960A1 (en) | 2011-12-29 |
CN102245419B (zh) | 2014-12-24 |
DE112008004176T5 (de) | 2012-10-18 |
JP5195919B2 (ja) | 2013-05-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5195919B2 (ja) | 車両用動力伝達装置 | |
JP5170256B2 (ja) | 前後輪駆動車両の動力伝達装置 | |
JP4155236B2 (ja) | 車両用駆動装置の制御装置 | |
US9079484B2 (en) | Control device for vehicle power transmission device | |
JP4554702B2 (ja) | 動力伝達装置の制御装置 | |
WO2010058470A1 (ja) | 車両用動力伝達装置の制御装置 | |
JP4232824B2 (ja) | ハイブリッド自動車およびその制御方法 | |
JP4238927B1 (ja) | 車両用自動変速機の制御装置 | |
JP4501925B2 (ja) | 車両用駆動装置の制御装置 | |
WO2010079604A1 (ja) | 四輪駆動車両用動力伝達装置の制御装置 | |
JP6888497B2 (ja) | 車両用動力伝達装置の制御装置 | |
JP2008290555A (ja) | 車両用駆動装置の制御装置 | |
JP2010215038A (ja) | 前後輪駆動車両のエンジン始動制御装置 | |
CN110539746B (zh) | 混合动力车辆 | |
US20170166184A1 (en) | Control system for power transmission system | |
JP4162471B2 (ja) | 前後輪駆動車の駆動制御装置 | |
CN113830067A (zh) | 四轮驱动车辆 | |
JP6900861B2 (ja) | 車両 | |
JP3906826B2 (ja) | ハイブリッド4輪駆動車の制御装置 | |
JP6701991B2 (ja) | 車両の制御装置 | |
JP2009149213A (ja) | 車両用動力伝達装置の制御装置 | |
JP6658316B2 (ja) | 車両の制御装置 | |
JP3886718B2 (ja) | 4輪駆動車の制御装置 | |
JP2010070041A (ja) | 車両用動力伝達装置の制御装置 | |
US20220388493A1 (en) | Driving apparatus for vehicle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200880132350.6 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08878893 Country of ref document: EP Kind code of ref document: A1 |
|
DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) | ||
ENP | Entry into the national phase |
Ref document number: 2010542762 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13139914 Country of ref document: US Ref document number: 1120080041768 Country of ref document: DE Ref document number: 112008004176 Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 08878893 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE Effective date: 20110615 |