CN111231646A - Dual-motor hybrid power driving system and hybrid power vehicle - Google Patents

Dual-motor hybrid power driving system and hybrid power vehicle Download PDF

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Publication number
CN111231646A
CN111231646A CN202010187292.XA CN202010187292A CN111231646A CN 111231646 A CN111231646 A CN 111231646A CN 202010187292 A CN202010187292 A CN 202010187292A CN 111231646 A CN111231646 A CN 111231646A
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CN
China
Prior art keywords
gear
motor
input
shaft
output
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CN202010187292.XA
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Chinese (zh)
Inventor
郭星
严博
罗会兵
陈梅
廖金龙
刘杰
吴金兵
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Chongqing Tsingshan Industrial Co Ltd
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Chongqing Tsingshan Industrial Co Ltd
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Priority to CN202010187292.XA priority Critical patent/CN111231646A/en
Publication of CN111231646A publication Critical patent/CN111231646A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—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 motors or the generators
    • 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
    • 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
    • B60K6/38—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 driveline clutches
    • 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
    • B60K6/54—Transmission for changing ratio
    • 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
    • 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
    • B60K6/26—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 motors or the generators
    • B60K2006/268—Electric drive motor starts the engine, i.e. used as starter motor
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The invention discloses a dual-motor hybrid power driving system and a hybrid power vehicle, which comprise an engine, a first motor, a second motor and a transmission, wherein the transmission comprises a first input shaft assembly, a middle shaft assembly, a second input shaft assembly and a differential mechanism, the second motor is directly connected with the engine and can be directly used for starting the engine, the engine can also directly charge the second motor, and the transmission efficiency and the power generation efficiency are higher because the engine is directly connected with the second motor and no middle gear is used for transmission. Carry out power benefit through first motor and turn round in the process of shifting gears, the process of shifting gears power can not be interrupted, and drivability is superior. First motor output has two gears, and the high-efficient interval that utilizes the motor that can be better reaches higher pure electric motor speed and stronger pure electric drive power to the various different operating modes of better adaptation.

Description

Dual-motor hybrid power driving system and hybrid power vehicle
Technical Field
The invention relates to the field of vehicles, in particular to a dual-motor hybrid power driving system and a hybrid power vehicle.
Background
With the increasing shortage of petroleum supply and the increasing increase of environmental pollution, the development and utilization of new energy vehicles have gradually become a trend. The hybrid electric vehicle in the new energy vehicle can be driven by the engine or the motor or the engine and the motor simultaneously, and has multiple driving modes, so that the engine and the motor can run in a high-efficiency interval as much as possible, and the hybrid electric vehicle has good fuel economy and low emission.
The currently known dual-motor system is represented by a hybrid power transmission system such as a gasoline EDU (electric drive unit), a Toyota E-CVT (electric-constant voltage transformer), and the Toyota E-CVT comprises two motors and a planetary gear transmission device, and the power transmission route of the dual-motor system is as follows: 1) driving an engine: engine-first motor-planetary gear set-external gear ring-output shaft, 2) pure electric drive: second motor-external gear ring-output shaft, 3) hybrid drive: the engine-first electric machine combines the second electric machine-the planetary gear set-the outer ring gear-the output shaft. The transmission system has the advantages of smooth speed change, high transmission efficiency and simple structure, and has the defects of no pure engine operation mode and fixed and invariable transmission ratio of the motor.
Go up vapour EDU including engine, a generator motor, a driving motor, two clutches and a two grades of drive gear group, because engine and two motors are coaxial arranging, power motor is because of arranging on the input shaft, can not carry out the output and mend the turn round, so need interrupt the moment of torsion when shifting, shift the travelling comfort poor.
Disclosure of Invention
The invention aims to provide a double-motor hybrid power driving system and a hybrid power vehicle aiming at the defects in the prior art, the double-motor hybrid power driving system has the advantages of high transmission efficiency, compact structure, light weight and the like, the problem of power interruption during gear shifting of a conventional transmission is solved in an engine driving and hybrid driving mode, the gear shifting comfort is improved, the vehicle is ensured to have good power performance and gear shifting characteristics, two motor gears are arranged in a pure electric working condition, the gears are variable, the vehicle is ensured to have good economy, and the fuel consumption and pollutant emission of the vehicle are reduced.
The purpose of the invention is realized by adopting the following scheme: the invention discloses a dual-motor hybrid power driving system, which comprises an engine, a first motor, a second motor and a transmission, wherein the transmission comprises a first input shaft assembly, a middle shaft assembly, a second input shaft assembly and a differential mechanism, the first input shaft assembly comprises a first input shaft, the first input shaft is a hollow shaft, the engine and the second motor are respectively positioned at two ends of the first input shaft, an output shaft of the engine is fixedly connected with a motor shaft of the second motor, an output shaft of the engine is connected with the first input shaft through a clutch, a first gear input gear and a second gear input gear are arranged on the first input shaft, the middle shaft assembly comprises a middle shaft, a first gear output gear, a second gear output gear, a first gear output gear of the motor and a second gear output gear of the motor are sleeved on the middle shaft in a hollow manner, the first gear output gear is meshed with the first gear input gear, a first-gear pair is formed, the second-gear output gear is meshed with a second-gear input gear to form a second-gear pair, a second-gear synchronizer is arranged between the first-gear output gear and the second-gear output gear and fixedly connected with an intermediate shaft, a motor-gear synchronizer is arranged between the first-gear output gear of the motor and the second-gear output gear of the motor and fixedly connected with the intermediate shaft, the second input shaft assembly comprises a second input shaft, a first-gear input gear of the motor, a second-gear input gear of the motor and a motor intermediate gear are arranged on the second input shaft, the first-gear input gear of the motor is meshed with the first-gear output gear of the motor to form a first-gear pair of the motor, the second-gear input gear of the motor is meshed with the second-gear output gear of the motor to form a second-gear pair of the motor, the intermediate gear of the motor is meshed with the input gear, and a constant mesh gear is arranged on the intermediate shaft and is meshed with an input gear of the differential mechanism or is meshed with the input gear of the differential mechanism through an output gear. The first-gear input gear and the second-gear input gear are circumferentially and fixedly connected with the first input shaft, and can also be integrally formed with the first input shaft into a whole and arranged as required. Constant mesh gear and jackshaft circumference fixed connection also can be as a whole with jackshaft integrated into one piece, set up as required. The motor intermediate gear is fixedly connected with the second input shaft in the circumferential direction, and can also be integrally formed with the second input shaft into a whole and arranged as required. The first-gear input gear of the motor, the second-gear input gear of the motor and the second input shaft are circumferentially and fixedly connected, and can also be integrally formed with the second input shaft into a whole and arranged as required. The output gear is fixedly connected with the output shaft in the circumferential direction, and can also be integrally formed with the output shaft into a whole and arranged as required.
The invention discloses a dual-motor hybrid power driving system, which comprises an engine, a first motor, a second motor and a transmission, wherein the transmission comprises a first input shaft assembly, a middle shaft assembly, a second input shaft assembly and a differential mechanism, the first input shaft assembly comprises a first input shaft, the first input shaft is a hollow shaft, the engine and the second motor are respectively positioned at two ends of the first input shaft, an output shaft of the engine is fixedly connected with a motor shaft of the second motor, an output shaft of the engine is connected with the first input shaft through a clutch, a first gear input gear and a second gear input gear are arranged on the first input shaft, the middle shaft assembly comprises a middle shaft, a first gear output gear and a second gear output gear are sleeved on the middle shaft in a hollow mode, a second gear synchronizer is arranged between the first gear output gear and the second gear output gear, and the first gear synchronizer is fixedly connected with the middle shaft, the first-gear output gear is meshed with the first-gear input gear to form a first-gear pair, the second-gear output gear is meshed with the second-gear input gear to form a second-gear pair, the intermediate shaft is also provided with a first-gear motor output gear and a second-gear motor output gear, the second input shaft assembly comprises a second input shaft, a first-gear motor input gear and a second-gear motor input gear are sleeved on the second input shaft in an empty mode, a motor gear synchronizer is arranged between the first-gear motor input gear and the second-gear motor input gear and fixedly connected with the second input shaft, the first-gear motor input gear is meshed with the first-gear motor output gear to form a first-gear motor gear pair, the second-gear motor input gear is meshed with the second-gear motor output gear to form a second-gear motor gear pair, the second input shaft is also provided with a middle motor gear, and the middle motor gear is meshed with the motor input gear, the motor input gear is fixedly arranged on a motor shaft of the first motor, the intermediate shaft is also provided with a constant mesh gear, and the constant mesh gear is meshed with an input gear of the differential mechanism or is meshed with the input gear of the differential mechanism through an output gear. The first-gear input gear and the second-gear input gear are circumferentially and fixedly connected with the first input shaft, and can also be integrally formed with the first input shaft into a whole and arranged as required. Constant mesh gear and jackshaft circumference fixed connection also can be as a whole with jackshaft integrated into one piece, set up as required. The first-gear output gear of the motor, the second-gear output gear of the motor and the intermediate shaft are circumferentially and fixedly connected, and can also be integrally formed with the intermediate shaft into a whole and arranged as required. The motor intermediate gear is fixedly connected with the second input shaft in the circumferential direction, and can also be integrally formed with the second input shaft into a whole and arranged as required.
The output gear is fixedly connected with the output shaft in the circumferential direction, and can also be integrally formed with the output shaft into a whole and arranged as required.
Further, the clutch comprises a clutch outer hub and a clutch inner hub, the clutch outer hub of the clutch is fixedly connected with the output shaft of the engine, and the clutch inner hub of the clutch is fixedly connected with the first input shaft.
Further, both ends of the intermediate shaft are supported in a housing of the transmission through bearings.
Further, both ends of the second input shaft are supported in a housing of the transmission through bearings.
Further, the output gear is fixed on the output shaft; the output shaft is supported within a housing of the transmission by bearings.
Further, the axial lead of the output shaft of the engine, the shaft of the motor shaft of the second motor and the axial lead of the first input shaft are positioned on the same straight line.
The invention also discloses a hybrid power vehicle which adopts the dual-motor hybrid power driving system.
The invention has the beneficial effects that: because the invention has a motor driving mode, an engine driving mode and a hybrid driving mode, when the motor works alone, the invention can adopt the first motor to start, or can use the second motor to start the engine under the conditions of rotating speed and torque suitable for starting the engine. When the engine and the motor are driven in a hybrid mode, the first gear or the second gear of the engine can be selected to transmit power timely according to road condition requirements. When the engine works alone, the motor can be charged and fed back. According to the invention, the power compensation is carried out through the first motor in the gear shifting process, the power is not interrupted in the gear shifting process, and the driving performance is excellent.
The invention has two motor gears, the gears can be switched at any time according to different working conditions, and the transmission ratios of a plurality of motors can be more suitable for various different complex working conditions.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of a dual motor hybrid drive system of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of a dual motor hybrid drive system of the present invention;
FIG. 3 is a pure electric mode path diagram (gear 1) of the first embodiment of the present invention;
FIG. 4 is a pure electric mode path diagram (2 nd) of the first embodiment of the present invention;
FIG. 5 is an engine only mode map (first gear) of the first embodiment of the present invention;
FIG. 6 is an engine only mode map (second gear) of the first embodiment of the present invention;
FIG. 7 illustrates the hybrid modes (engine first gear, electric machine first gear) of the first embodiment of the present invention;
FIG. 8 illustrates the hybrid mode (engine second gear, electric machine first gear) of the first embodiment of the present invention;
FIG. 9 illustrates the hybrid modes (engine first gear, electric machine second gear) of the first embodiment of the present invention;
fig. 10 shows the hybrid modes (engine second gear and motor second gear) of the first embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, detailed embodiments are provided, and the present invention will be further described in detail with reference to the accompanying drawings:
example one
Referring to fig. 1, the embodiment discloses a dual-motor hybrid power drive system, which specifically includes an engine 1, a clutch, a transmission, a first motor 7, and a second motor 4; the clutch comprises a clutch outer hub 2-2 and a clutch inner hub 2-1; the transmission includes a first input shaft assembly 3, a countershaft assembly 5, a second input shaft assembly 6, and a differential and output gear 15. The first input shaft assembly 3 comprises a first input shaft 3-3, a first-gear input gear 3-1 and a second-gear input gear 3-3; the first-gear input gear 3-1 is fixedly connected with the first input shaft 3-3, and the second-gear input gear 3-3 is fixedly connected with the first input shaft 3-3. The first input shaft 3-3 is fixedly connected with the clutch inner hub 2-1; the engine 1 is fixedly connected with the clutch outer hub 2-2, and the second motor 4 is directly and circumferentially fixedly connected with the engine 1; the axial lead of the output shaft of the engine 1 and the motor shaft of the second motor 4 and the axial lead of the first input shaft 3-3 are positioned on the same straight line. The first input shaft 3-3 is a hollow shaft, and is used for an output shaft of the engine 1 or a motor shaft of the second motor 4 to extend into or pass through. The intermediate shaft component 5 comprises an intermediate shaft 5-8, a normally meshed gear 5-1, a first gear output gear 5-2, a second gear output gear 5-4, a second gear synchronizer 5-3, a motor gear synchronizer 5-6, a first motor gear output gear 5-5 and a second motor gear output gear 5-7; the middle shaft 5-8 is fixedly connected with a normally meshed gear 5-1, and the first-gear output gear 5-2 is sleeved on the middle shaft 5-8 in an empty mode and idles on the middle shaft 5-8; the second-gear output gear 5-4 is sleeved on the intermediate shaft 5-8 in an empty way and idles on the intermediate shaft 5-8; the first gear synchronizer 5-3 is fixedly connected to the intermediate shaft 5-8; the motor gear synchronizer 5-6 is fixedly connected to the intermediate shaft 5-8; the first-gear output gear 5-5 of the motor and the second-gear output gear 5-7 of the motor are sleeved on the middle shaft 5-8 in an empty mode and idle on the middle shaft 5-8; the second input shaft assembly 6 comprises a second input shaft 6-2, a first-gear motor input gear 6-1, a second-gear motor input gear 6-3 and a middle motor gear 6-4, and the first-gear motor input gear 6-1, the second-gear motor input gear 6-3 and the middle motor gear 6-4 are fixedly connected with the second input shaft 6-2;
the first-gear input gear 3-1 is meshed with the first-gear output gear 5-2 to form a first-gear pair, and the second-gear input gear 3-3 is meshed with the second-gear output gear 5-4 to form a second-gear pair; the first-gear output gear 5-5 of the motor is meshed with the first-gear input gear 6-1 of the motor to form a first-gear pair of the motor, and the second-gear output gear 5-7 of the motor is meshed with the second-gear input gear 6-3 of the motor to form a second-gear pair of the motor;
the constant mesh gear 5-1 meshes with the output gear 15. The motor intermediate gear 6-4 is meshed with the motor input gear 7-1;
the first motor 7 is fixedly connected with a motor input gear 7-1;
the engine 1 may be a three-cylinder or four-cylinder engine 1, or may be another engine 1.
Further, both ends of the intermediate shafts 5 to 8 are supported in a housing of the transmission through bearings.
Further, both ends of the second input shaft 6-2 are supported in a housing of the transmission through bearings.
Further, the output gear 15 is fixed on the output shaft; the output shaft is supported within a housing of the transmission by bearings.
Example two
Referring to fig. 2, the present embodiment discloses a dual-motor hybrid driving system, which is characterized in that: the transmission comprises an engine 1, a first motor 7, a second motor 4 and a transmission, wherein the transmission comprises a first input shaft assembly 3, an intermediate shaft assembly 5, a second input shaft assembly 6 and a differential mechanism, the first input shaft assembly 3 comprises a first input shaft 3-3, the first input shaft 3-3 is a hollow shaft, the engine 1 and the second motor 4 are respectively positioned at two ends of the first input shaft 3-3, an output shaft of the engine 1 is fixedly connected with a motor shaft of the second motor 4, an output shaft of the engine 1 is connected with the first input shaft 3-3 through a clutch 2, a first-gear input gear 3-1 and a second-gear input gear 3-2 are arranged on the first input shaft 3-3, the intermediate shaft assembly 5 comprises an intermediate shaft 5-8, and a first-gear output gear 5-2 is sleeved on the intermediate shaft 5-8, A second-gear synchronizer 5-3 is arranged between the second-gear output gear 5-4, the first-gear output gear 5-2 and the second-gear output gear 5-4, the second-gear synchronizer 5-3 is fixedly connected with an intermediate shaft 5-8, the first-gear output gear 5-2 is meshed with the first-gear input gear 3-1 to form a first-gear pair, the second-gear output gear 5-4 is meshed with the second-gear input gear 3-2 to form a second-gear pair, the intermediate shaft 5-8 is also provided with a first-gear motor output gear 5-5 and a second-gear motor output gear 5-7, the second input shaft assembly 6 comprises a second input shaft 6-2, the first-gear motor input gear 6-1 and the second-gear motor input gear 6-3 are sleeved on the second input shaft 6-2, a motor gear synchronizer 6-5 is arranged between a first-gear input gear 6-1 of the motor and a second-gear input gear 6-3 of the motor, the motor gear synchronizer 6-5 is fixedly connected with a second input shaft 6-2, the first-gear input gear 6-1 of the motor is meshed with a first-gear output gear 5-5 of the motor to form a first-gear pair of the motor, the second-gear input gear 6-3 of the motor is meshed with a second-gear output gear 5-7 of the motor to form a second-gear pair of the motor, a middle gear 6-4 of the motor is also arranged on the second input shaft 6-2, the middle gear 6-4 of the motor is meshed with a motor input gear 7-1 of the motor, the motor input gear 7-1 is fixedly arranged on a motor shaft of a first motor 7, and a normally meshed gear 5-1 is also arranged on a middle shaft 5, the constant mesh gear 5-1 meshes with the output gear 15. Other technical features of the present embodiment are the same as those of the first embodiment.
EXAMPLE III
The embodiment provides a hybrid vehicle which adopts the dual-motor hybrid driving system of the first embodiment or the second embodiment.
As shown in fig. 1, the working principle of the present invention is as follows:
in the embodiment, all gears on the transmission can be used for transmission of the first motor 7, the second motor 4 and the engine 1, and the gear selection function of the existing hybrid power system in three modes of a pure electric drive mode, a hybrid drive mode and a pure engine 1 is added through a synchronizer. When the transmission shifts gears, the first motor 7 transmits torque to the intermediate shaft 5-8, and the intermediate shaft 5-8 constant meshed gear 5-1 is output to a wheel end through the differential and the output gear 15, so that the phenomenon of torque interruption during shifting is prevented, and the shifting comfort is improved.
Pure electric mode (first gear) as shown in fig. 3:
the clutch is in a separation state, the steel sheets of the clutch outer hub 2-22 and the friction sheets of the clutch inner hub 2-13 are not combined, the first-gear synchronizer 5-3 is in a neutral state, the motor gear synchronizer 5-6 slides to the first-gear output gear 5-55 of the motor and is connected with the first-gear output gear 5-5 of the motor, at the moment, the intermediate shaft 5-8 is fixedly connected with the first-gear output gear 5-55 of the motor, the first motor 7 is started to input power to the motor input gear, and the motor input gear transmits the power to the first-gear input gear 3-1 of the motor, the first-gear output gear 5-5 of the motor, the intermediate shaft 5-8, the constant mesh gear 5-1-differential and the output gear 15 through the motor intermediate gear.
Pure electric mode (second gear) as shown in fig. 4:
the clutch is in a separation state, the steel sheet of the clutch outer hub 2-2 and the friction sheet of the clutch inner hub 2-1 are not combined, the first gear synchronizer 5-3 is in a neutral state, the motor gear synchronizer 5-6 slides to the motor second gear output gear 5-7 and is connected with the motor second gear output gear 5-7, the intermediate shaft 5-8 is fixedly connected with the motor second gear output gear 5-7, the first motor 7 is started to input power to the motor input gear, and the motor input gear transmits the power to the motor second gear input gear 3-3, the motor second gear output gear 5-7, the intermediate shaft 5-8, the normally meshed gear 5-1-differential and the output gear 15 through the motor intermediate gear.
Pure Engine 1 mode (first gear) as shown in FIG. 5
The clutch is in an engaging state, a steel sheet of the clutch outer hub 2-2 is engaged with a friction sheet of the clutch inner hub 2-1, the first-gear synchronizer 5-3 slides towards the first-gear output gear 5-2, the second-gear synchronizer 5-3 is engaged with the first-gear output gear 5-2, the first-gear output gear 5-2 and the second-gear synchronizer 5-3 are fixedly connected together at the moment, the first motor 7 is closed, the engine 1 is started, the engine 1 transmits power to the clutch inner hub 2-1 and the clutch outer hub 2-2, the clutch outer hub 2-2 transmits power to the first input shaft 3-3, the first input shaft 3-3 is transmitted to a first-gear input gear 3-1-a first-gear output gear 5-2-a middle shaft 5-8-a constant meshed gear 5-1-a differential and an output gear 15;
engine only 1 mode (second gear) as shown in FIG. 6
The clutch is in a joint state, a steel sheet of an outer hub 2-2 of the clutch is jointed with a friction sheet of an inner hub 2-1 of the clutch, a first-gear synchronizer 5-3 slides towards a second-gear output gear 5-4, the first-gear synchronizer 5-3 is jointed with the second-gear output gear 5-4, the second-gear output gear 5-4 is fixedly connected with the first-gear synchronizer 5-3 at the moment, a first motor 7 is closed, an engine 1 is started, the engine 1 transmits power to the outer hub 2-2 of the clutch, the clutch outer hub 2-2 transmits power to the clutch inner hub 2-1-the first input shaft 3-3-the second gear input gear 3-3-the second gear output gear 5-4-the intermediate shaft 5-8-the constant mesh gear 5-1-the differential and the output gear 15;
hybrid mode as shown in FIG. 7 (first gear of engine 1, first gear of motor)
The clutch is in an engagement state, a steel sheet of the clutch outer hub 2-2 is engaged with a friction sheet of the clutch inner hub 2-1, the first-gear synchronizer 5-3 slides towards the first-gear output gear 5-2, the second-gear synchronizer 5-3 is engaged with the first-gear output gear 5-2, the first-gear output gear 5-2 is fixedly connected with the second-gear synchronizer 5-3, the motor-gear synchronizer 5-6 slides towards the first-gear output gear 5-5 of the motor and is engaged with the first-gear output gear 5-5 of the motor, the intermediate shaft 5-8 is fixedly connected with the first-gear output gear 5-5 of the motor, the engine 1 is started, the first motor 7 is started, the engine 1 transmits power to the clutch outer hub 2-2-clutch inner hub 2-1-first input shaft 3-3-first-gear input gear 3-1-first-gear output gear 5 2-intermediate shaft 5-8-constant mesh gear 5-1-differential and output gear 15, the first motor 7 transfers power to the motor input gear-motor first gear input gear 3-1-motor first gear output gear 5-5-intermediate shaft 5-8-constant mesh gear 5-1-differential and output gear 15. The engine 1 and the motor transmit power simultaneously.
Hybrid mode as shown in FIG. 8 (Engine 1 second gear, electric machine first gear)
The clutch is in an engagement state, a steel sheet of an outer hub 2-2 of the clutch is engaged with a friction sheet of an inner hub 2-1 of the clutch, a first-gear synchronizer 5-3 slides towards a second-gear output gear 5-4, the first-gear synchronizer 5-3 is engaged with the second-gear output gear 5-4, the second-gear output gear 5-4 is fixedly connected with the first-gear synchronizer 5-3, a motor-gear synchronizer 5-6 slides towards the first-gear output gear 5-5 of the motor and is engaged with the first-gear output gear 5-5 of the motor, an intermediate shaft 5-8 is fixedly connected with the first-gear output gear 5-5 of the motor, the engine 1 is started, the first motor 7 is started, the engine 1 transmits power to the outer hub 2-2-of the clutch, the inner hub 2-1 of the clutch, the first input shaft 3-3-the second-gear input gear 3-5-second-gear output gear 4-two-gear synchronizer 5-3-intermediate shaft 5-8-constant mesh gear 5-1-differential and output gear 15, first motor 7 transfers power to motor input gear-motor first gear input gear 3-1-motor first gear output gear 5-5-intermediate shaft 5-8-constant mesh gear 5-1-differential and output gear 15. The engine 1 and the motor transmit power simultaneously.
Hybrid mode as shown in FIG. 9 (first gear of engine 1, second gear of motor)
The clutch is in an engagement state, a steel sheet of an outer hub 2-2 of the clutch is engaged with a friction sheet of an inner hub 2-1 of the clutch, a first-gear synchronizer 5-3 slides towards a first-gear output gear 5-2, the first-gear synchronizer 5-3 is engaged with the first-gear output gear 5-2, the first-gear output gear 5-2 is fixedly connected with the first-gear synchronizer 5-3, a motor-gear synchronizer 5-6 slides towards a second-gear output gear 5-7 of the motor and is engaged with the second-gear output gear 5-7 of the motor, an intermediate shaft 5-8 is fixedly connected with the second-gear output gear 5-7 of the motor, the engine 1 is started, the first motor 7 is started, the engine 1 transmits power to the outer hub 2-2 of the clutch, the inner hub 2-1 of the clutch, the first input shaft 3-3, the first-gear input gear 3-1, the first-gear output gear 5 2-first and second gear synchronizer 5-3-intermediate shaft 5-8-constant mesh gear 5-1-differential and output gear 15, first motor 7 transmits power to motor input gear-motor second gear input gear 3-3-motor second gear output gear 5-7-motor gear synchronizer 5-6-intermediate shaft 5-8-constant mesh gear 5-1-differential and output gear 15. The engine 1 and the motor transmit power simultaneously.
Hybrid mode (Engine 1 second gear, Motor second gear) as shown in FIG. 10
The clutch is in an engagement state, a steel sheet of an outer hub 2-2 of the clutch is engaged with a friction sheet of an inner hub 2-1 of the clutch, a first-gear synchronizer 5-3 slides towards a second-gear output gear 5-4, the first-gear synchronizer 5-3 is engaged with the second-gear output gear 5-4, the second-gear output gear 5-4 is fixedly connected with the first-gear synchronizer 5-3, a motor-gear synchronizer 5-6 slides towards the second-gear output gear 5-7 of the motor and is engaged with the second-gear output gear 5-7 of the motor, an intermediate shaft 5-8 is fixedly connected with the second-gear output gear 5-7 of the motor, the engine 1 is started, the first motor 7 is started, the engine 1 transmits power to the outer hub 2-2-1 of the clutch, the inner hub 2-1 of the clutch, the first input shaft 3-3-5-second-gear output gear 4-first and second gear synchronizer 5-3-intermediate shaft 5-8-constant mesh gear 5-1-differential and output gear 15, first motor 7 transmits power to motor input gear-motor second gear input gear 3-3-motor second gear output gear 5-7-motor gear synchronizer 5-6-intermediate shaft 5-8-constant mesh gear 5-1-differential and output gear 15. The engine 1 and the motor transmit power simultaneously.
Power recovery mode
Wherein the clutch is disconnected, the engine 1 and the second motor 4 stop running, the motor gear synchronizer 5-6 on the intermediate shaft 5-8 is connected with the first-gear output gear 5-5 of the motor or connected with the second-gear output gear 5-7 of the motor, the synchronizer on the transmission is disconnected with the gear of the corresponding gear, the first motor 7 is in a running state, and during the braking or sliding process, the differential and the output gear 15 enable power to pass through the intermediate shaft 5-8-the motor gear synchronizer 5-6-the first-gear output gear 5-5 of the motor or the second-gear output gear 5-7-the first-gear input gear 3-1 of the motor or the second-gear input gear 3-3 of the motor, the intermediate gear of the motor, the motor input gear and the first motor 7, the first motor 7 is caused to charge the battery.
Wherein the clutch is jointed, the steel sheet of the clutch outer hub 2-2 is jointed with the friction sheet of the clutch inner hub 2-1, the first and second gear synchronizers 5-3 slide towards the direction of the first gear output gear 5-2, the first and second gear synchronizers 5-3 are jointed with the first gear output gear 5-2, at the moment, the first gear output gear 5-2 is fixedly connected with the first and second gear synchronizers 5-3, when braking, the power passes through a differential and an output gear 15, a normally meshed gear 5-1, an intermediate shaft 5-8, a two-gear synchronizer 5-3, a first-gear output gear 5-2, a first-gear input gear 3-1, a first input shaft 3-3, a clutch inner hub 2-1, a clutch outer hub 2-2 and a second motor 4, so that the second motor 4 charges a battery.
Wherein the clutch is jointed, the steel sheet of the clutch outer hub 2-2 is jointed with the friction sheet of the clutch inner hub 2-1, the first and second gears of the synchronizer 5-3 slide towards the direction of the second gear output gear 5-4, the first and second gears of the synchronizer 5-3 are jointed with the second gear output gear 5-4, at this time, the second gear output gear 5-4 is fixedly connected with the first and second gears of the synchronizer 5-3, when braking, the power passes through a differential and an output gear 15, a normally meshed gear 5-1, an intermediate shaft 5-8, a first-gear synchronizer 5-3, a second-gear output gear 5-4, a second-gear input gear 3-3, a first input shaft 3-3, a clutch inner hub 2-1, a clutch outer hub 2-2 and a second motor 4, so that the second motor 4 charges a battery.
Charging mode
In the hybrid power mode and the pure engine 1 mode, the engine 1 and the second motor 4 are directly and fixedly connected together, and as long as the engine 1 is started to operate, power is directly transmitted to the second motor 4, so that the second motor 4 charges the battery.
The clutch is in a joint state, a steel sheet of an outer hub 2-2 of the clutch is jointed with a friction sheet of an inner hub 2-1 of the clutch, a first-gear synchronizer 5-3 slides towards a first-gear output gear 5-2 or a second-gear output gear 5-4, the first-gear synchronizer 5-3 is jointed with the first-gear output gear 5-2 or the second-gear output gear 5-4, the first-gear output gear 5-2 or the second-gear output gear 5-4 is fixedly connected with the first-gear synchronizer 5-3, a motor-gear synchronizer 5-6 slides towards the first-gear output gear 5-5 of the motor or the second-gear output gear 5-7 of the motor, an intermediate shaft 5-8 is fixedly connected with the first-gear output gear 5-5 of the motor or the second-gear output gear 5-7 of the motor, the engine 1 is started, the engine 1 transmits power to the outer hub 2-2 of the clutch, the clutch outer hub 2-2 transmits power to the clutch outer hub 2-2, the clutch outer hub 2-2 is fixedly connected with a first input shaft 3-3, the first input shaft 3-3 is transmitted to a first-gear input gear 3-1 or a second-gear input gear 3-3-a first-gear output gear 5-2 or a second-gear output gear 5-4-an intermediate shaft 5-8-a motor gear synchronizer 5-6-a motor first-gear output gear 5-5 or a motor second-gear output gear 5-7-a motor first-gear input gear 3-1 or a motor second-gear input gear 3-3-a motor intermediate gear-a motor input gear-a first motor 7, and the first motor 7 charges a battery.
The second electric machine 4 starts the engine 1 mode:
the second electric machine 4 is operated, the clutch is disconnected, and the second electric machine 4 transmits power to the engine 1 for starting the engine 1.
The first electric machine 7 starts the engine 1 mode:
the clutch is in an engaging state, a steel sheet of an outer hub 2-2 of the clutch is engaged with a friction sheet of an inner hub 2-1 of the clutch, a first-gear synchronizer 5-3 slides towards a first-gear output gear 5-2 or a second-gear output gear 5-4, the first-gear synchronizer 5-3 is engaged with the first-gear output gear 5-2 or the second-gear output gear 5-4, the first-gear output gear 5-2 or the second-gear output gear 5-4 is fixedly connected with the first-gear synchronizer 5-3, a motor-gear synchronizer 5-6 slides towards a first-gear output gear 5-5 of the motor or a second-gear output gear 5-7 of the motor, an intermediate shaft 5-8 is fixedly connected with the first-gear output gear 5-5 of the motor or the second-gear output gear 5-7 of the motor, the first motor 7 is started, and the first motor 7 transmits power to the motor input gear-motor intermediate gear-motor first-gear of the motor The engine 1 is started by the output gear 5-5, the motor second gear output gear 5-7, the intermediate shaft 5-8, the first gear synchronizer 5-3, the first gear output gear 5-2, the second gear output gear 5-4, the first input shaft 3-3, the clutch inner hub 2-1, the clutch outer hub 2-2 and the power transmitted to the engine 1.
In the embodiment, when the first-gear synchronizer 5-3 acts on the first-gear output gear 5-2, the first-gear output gear 5-2 is fixedly connected to the intermediate shaft 5-8, and the first-gear output gear 5-2 and the first-gear input gear 3-1 are always in a meshing state to form a gear pair of 1 gear;
in the embodiment, when the first-gear synchronizer 5-3 acts on the second-gear output gear 5-4, the second-gear output gear 5-4 is fixedly connected to the intermediate shaft 5-8, and the second-gear output gear 5-4 and the second-gear input gear 3-3 are always in a meshing state to form a 2-gear pair;
in the embodiment, when the motor gear synchronizer 5-6 acts on the motor first gear output gear 5-5, the motor first gear output gear 5-5 is fixedly connected to the intermediate shaft 5-8, the motor first gear output gear 5-5 and the motor first gear input gear 3-1 are always in a meshed state, and a motor 1 gear pair is formed;
in the embodiment, when the motor gear synchronizer 5-6 acts on the motor second gear output gear 5-75-4, the motor second gear output gear 5-7 is fixedly connected to the intermediate shaft 5-8, the motor second gear output gear 5-7 and the motor second gear input gear 3-3 are always in a meshed state, and a motor 2 gear pair is formed;
in the present embodiment, the reverse function is realized by the reverse rotation of the first electric motor 7;
in the present embodiment, during power generation or energy recovery, if the rotation speed of the first electric machine 7 exceeds the maximum design limit rotation speed, the electric machine gear synchronizer 5-6 is disconnected, and the power transmission route of the first electric machine 7 is cut off to protect the first electric machine 7.
The dual-motor hybrid power driving system comprises two motors, wherein the second motor is directly connected with the engine and can be directly used for starting the engine, and the engine can also directly charge the second motor. Carry out power benefit through first motor and turn round in the process of shifting gears, the process of shifting gears power can not be interrupted, and drivability is superior. First motor output has two gears, and the high-efficient interval that utilizes the motor that can be better reaches higher pure electric motor speed and stronger pure electric drive power to the various different operating modes of better adaptation.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is apparent that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (8)

1. A dual-motor hybrid drive system, characterized in that: the transmission comprises an engine (1), a first motor (7), a second motor (4) and a transmission, wherein the transmission comprises a first input shaft assembly (3), a middle shaft assembly (5) and a second input shaft assembly (6), the first input shaft assembly (3) comprises a first input shaft (3-3), the first input shaft (3-3) is a hollow shaft, the engine (1) and the second motor (4) are respectively positioned at two ends of the first input shaft (3-3), an output shaft of the engine (1) is fixedly connected with a motor shaft of the second motor (4), an output shaft of the engine (1) is connected with the first input shaft (3-3) through a clutch (2), a first-gear input gear (3-1) and a second-gear input gear (3-2) are arranged on the first input shaft (3-3), the middle shaft assembly (5) comprises a middle shaft (5-8), a first-gear output gear (5-2), a second-gear output gear (5-4), a first-gear output gear (5-5) of a motor and a second-gear output gear (5-7) of the motor are sleeved on the middle shaft (5-8), the first-gear output gear (5-2) is meshed with a first-gear input gear (3-1) to form a first-gear pair, the second-gear output gear (5-4) is meshed with a second-gear input gear (3-2) to form a second-gear pair, a second-gear synchronizer (5-3) is arranged between the first-gear output gear (5-2) and the second-gear output gear (5-4), the second-gear synchronizer (5-3) is fixedly connected with the middle shaft (5-8), and a motor gear is arranged between the first-gear output gear (5-5) of the motor and the second-gear output gear (5-7) The synchronous device comprises a synchronizer (5-6), a motor gear synchronizer (5-6) is fixedly connected with an intermediate shaft (5-8), the second input shaft assembly (6) comprises a second input shaft (6-2), a first motor gear input gear (6-1), a second motor gear input gear (6-3) and a motor intermediate gear (6-4) are arranged on the second input shaft (6-2), the first motor gear input gear (6-1) is meshed with the first motor gear output gear (5-5) to form a first motor gear pair, the second motor gear input gear (6-3) is meshed with the second motor gear output gear (5-7) to form a second motor gear pair, the motor intermediate gear (6-4) is meshed with the motor input gear (7-1), the motor input gear (7-1) is fixedly arranged on a motor shaft of a first motor (7), a constant mesh gear (5-1) is arranged on the intermediate shaft (5-8), and the constant mesh gear (5-1) is meshed with an input gear of the differential or the constant mesh gear (5-1) is meshed with the input gear of the differential through an output gear (15).
2. A dual-motor hybrid drive system, characterized in that: the transmission comprises an engine (1), a first motor (7), a second motor (4) and a transmission, wherein the transmission comprises a first input shaft assembly (3), a middle shaft assembly (5), a second input shaft assembly (6) and a differential mechanism, the first input shaft assembly (3) comprises a first input shaft (3-3), the first input shaft (3-3) is a hollow shaft, the engine (1) and the second motor (4) are respectively positioned at two ends of the first input shaft (3-3), an output shaft of the engine (1) is fixedly connected with a motor shaft of the second motor (4), an output shaft of the engine (1) is connected with the first input shaft (3-3) through a clutch (2), a first gear input gear (3-1) and a second gear input gear (3-2) are arranged on the first input shaft (3-3), the middle shaft assembly (5) comprises a middle shaft (5-8), a first-gear output gear (5-2) and a second-gear output gear (5-4) are sleeved on the middle shaft (5-8) in a hollow mode, a second-gear synchronizer (5-3) is arranged between the first-gear output gear (5-2) and the second-gear output gear (5-4), the second-gear synchronizer (5-3) is fixedly connected with the middle shaft (5-8), the first-gear output gear (5-2) is meshed with the first-gear input gear (3-1) to form a first-gear pair, the second-gear output gear (5-4) is meshed with the second-gear input gear (3-2) to form a second-gear pair, and a first-gear motor output gear (5-5) and a second-gear motor output gear (5-7) are further arranged on the middle shaft (5-8), the second input shaft assembly (6) comprises a second input shaft (6-2), a first-gear motor input gear (6-1) and a second-gear motor input gear (6-3) are sleeved on the second input shaft (6-2) in an empty mode, a first-gear motor synchronizer (6-5) is arranged between the first-gear motor input gear (6-1) and the second-gear motor input gear (6-3), the first-gear motor synchronizer (6-5) is fixedly connected with the second input shaft (6-2), the first-gear motor input gear (6-1) is meshed with the first-gear motor output gear (5-5) to form a first-gear motor gear pair, the second-gear motor input gear (6-3) is meshed with the second-gear motor output gear (5-7) to form a second-gear motor gear pair, a middle motor gear (6-4) is further arranged on the second input shaft (6-2), the motor intermediate gear (6-4) is meshed with a motor input gear (7-1), the motor input gear (7-1) is fixedly arranged on a motor shaft of the first motor (7), a normally meshed gear (5-1) is further arranged on the intermediate shaft (5-8), and the normally meshed gear (5-1) is meshed with an input gear of the differential or the normally meshed gear (5-1) is meshed with the input gear of the differential through an output gear (15).
3. The dual-motor hybrid drive system according to claim 1 or 2, characterized in that: the clutch (2) comprises a clutch outer hub (2-2) and a clutch inner hub (2-1), the clutch outer hub (2-2) of the clutch (2) is fixedly connected with an output shaft of the engine (1), and the clutch inner hub (2-1) of the clutch (2) is fixedly connected with the first input shaft (3-3).
4. The dual-motor hybrid drive system according to claim 1 or 2, characterized in that: the two ends of the intermediate shafts (5-8) are supported in a shell of the transmission through bearings.
5. The dual-motor hybrid drive system according to claim 1 or 2, characterized in that: both ends of the second input shaft (6-2) are supported in a housing of the transmission through bearings.
6. The dual-motor hybrid drive system according to claim 1 or 2, characterized in that: the output gear (15) is fixed on the output shaft; the output shaft is supported within a housing of the transmission by bearings.
7. The dual-motor hybrid drive system according to claim 1 or 2, characterized in that: the axial lead of the output shaft of the engine (1), the axial lead of the motor shaft of the second motor (4) and the axial lead of the first input shaft (3-3) are positioned on the same straight line.
8. A hybrid vehicle characterized in that: a two-motor hybrid drive system as claimed in claim 1 or 2 is employed.
CN202010187292.XA 2020-03-17 2020-03-17 Dual-motor hybrid power driving system and hybrid power vehicle Pending CN111231646A (en)

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Application Number Priority Date Filing Date Title
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CN111231646A true CN111231646A (en) 2020-06-05

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111546873A (en) * 2020-06-22 2020-08-18 重庆青山工业有限责任公司 Two-gear double-clutch hybrid power system and hybrid power vehicle
CN112455423A (en) * 2020-11-27 2021-03-09 重庆青山工业有限责任公司 Pure electric starting control method of double-motor hybrid electric vehicle
CN113665344A (en) * 2021-08-05 2021-11-19 南通大任永磁电机制造有限公司 Dual-motor four-speed-ratio range-extended electric vehicle power assembly and electric vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111546873A (en) * 2020-06-22 2020-08-18 重庆青山工业有限责任公司 Two-gear double-clutch hybrid power system and hybrid power vehicle
CN112455423A (en) * 2020-11-27 2021-03-09 重庆青山工业有限责任公司 Pure electric starting control method of double-motor hybrid electric vehicle
CN113665344A (en) * 2021-08-05 2021-11-19 南通大任永磁电机制造有限公司 Dual-motor four-speed-ratio range-extended electric vehicle power assembly and electric vehicle
CN113665344B (en) * 2021-08-05 2023-12-15 南通大任永磁电机制造有限公司 Dual-motor four-speed-ratio range-extended electric vehicle power assembly and electric vehicle

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