CN113580920A - Hybrid vehicle driving system and hybrid vehicle - Google Patents

Hybrid vehicle driving system and hybrid vehicle Download PDF

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Publication number
CN113580920A
CN113580920A CN202111018998.4A CN202111018998A CN113580920A CN 113580920 A CN113580920 A CN 113580920A CN 202111018998 A CN202111018998 A CN 202111018998A CN 113580920 A CN113580920 A CN 113580920A
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gear
clutch
motor
hybrid
engine
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CN202111018998.4A
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CN113580920B (en
Inventor
程昶
田蒙
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Chongqing Changan Automobile Co Ltd
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Chongqing Changan Automobile Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • 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
    • B60K6/24—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 combustion engines
    • 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
    • B60K6/38—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
    • B60K6/22—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
    • B60K6/383—One-way clutches or freewheel devices
    • 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
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

This scheme relates to a hybrid vehicle actuating system and hybrid vehicle, includes: the system comprises an engine, a first motor, a second motor, a first clutch, a second clutch, a third clutch, a one-way clutch, a differential, a brake, a first transmission mechanism and a second transmission mechanism; the engine is connected with a first motor through a first clutch; the first motor is connected with an inner rotor of the one-way clutch through a shaft; the outer rotor of the one-way clutch is connected with the driving end of the second clutch and the driving end of the third clutch through the first transmission mechanism; the driving end of the second clutch is rigidly connected with the driving end of the third clutch; the driven end of the second clutch, the driven end of the third clutch and the second motor are connected with the differential and the driving end of the brake through a second transmission mechanism; the driven end of the brake is rigidly connected to the housing.

Description

Hybrid vehicle driving system and hybrid vehicle
Technical Field
The invention relates to the technical field of hybrid power drive of multiple energy sources, in particular to a hybrid power vehicle driving system and a hybrid power vehicle.
Background
The DHT based on the double-motor development hybrid transmission has the advantages of small size, compact structure, low development difficulty and the like, and has wide vehicle type application potential. The early-stage popularization main product is double motors and single gear (as shown in figure 1) and is applied to a plurality of enterprises such as Honda, Mitsubishi, Guangdong steam and the like. Meanwhile, a new generation of dual-motor multi-gear scheme has already started to be popularized and produced in mass (as shown in fig. 2), for example, with the further reduction of the motor cost, the development and popularization of dual-motor high-performance products will be further increased in the future in automotive enterprises such as biddie, giley, great wall and the like.
At present, aiming at a double-motor single-gear scheme, an engine and a driving motor are both in a single reduction ratio, starting power performance (requiring a large speed ratio) and high-speed economy (requiring a small speed ratio) cannot be considered, the motor is driven at low speed and in climbing, power is directly influenced by the performance of the motor due to the single speed ratio, and a selected high-power motor is large in size and not beneficial to arrangement and development; when the vehicle is driven at a high speed, the engine is high in rotating speed and high in noise due to a single speed ratio. Compared with a double-motor single gear, the double-motor multi-gear scheme developed at present mainly optimizes and increases the speed ratio of the engine, so that the engine can work in a more oil-consuming economic area, and the economy is improved to a certain extent; meanwhile, the rotating speed of the engine can be reduced by multiple gears, the noise of the engine is reduced, and the NVH performance is improved.
Aiming at the existing double-motor multi-gear scheme, the main defects are that a gear shifting mechanism generally adopts a synchronizer for gear shifting, two-gear speed ratios are convenient to arrange, gears are few, and the power output of an engine is interrupted in the gear shifting process; the double-motor multi-gear scheme is in an EV mode, and is driven by a single motor and a single gear, so that the pure electric performance is not effectively improved, and the driving performance is poor.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a hybrid vehicle driving system and a hybrid vehicle, which are used for solving the defects of few pure electric modes, poor power economy, poor economy in a hybrid AUTO mode, poor gear-shifting driving interruption feeling and the like of the conventional multi-mode hybrid system structure.
The technical scheme of the invention is as follows:
the present invention provides a hybrid vehicle drive system, including:
the system comprises an engine, a first motor, a second motor, a first clutch, a second clutch, a third clutch, a one-way clutch, a differential, a brake, a first transmission mechanism and a second transmission mechanism;
the engine is connected with the first motor through the first clutch;
the first motor is connected with an inner rotor of the one-way clutch through a shaft;
the outer rotor of the one-way clutch is connected with the driving end of the second clutch and the driving end of the third clutch through the first transmission mechanism; the driving end of the second clutch is rigidly connected with the driving end of the third clutch;
the driven end of the second clutch, the driven end of the third clutch and the second motor are connected with the differential and the driving end of the brake through the second transmission mechanism; the driven end of the brake is rigidly connected with the transmission box body;
controlling the first to third clutches, the engine, the first motor, the second motor, and the brake to cause the hybrid vehicle drive system to enter:
an ECO first-gear or second-gear driving state and a SPORT first-gear, second-gear or third-gear driving state in the pure electric EV mode;
the hybrid automatic drive mode comprises a first-gear or second-gear SPORT driving state in a hybrid automatic mode, a first-gear, second-gear or third-gear SPORT driving state, a series single-gear hybrid driving state, a parallel first-gear, second-gear or third-gear hybrid driving state; or
And a double-motor hybrid power generation state in the power generation SAVE mode.
Preferably, the first transmission mechanism includes:
a first gear connected to an outer rotor of the one-way clutch;
and the second gear is meshed with the first gear, and the second gear is respectively connected with the driving end of the second clutch and the driving end of the third clutch.
Preferably, the second transmission mechanism includes:
the gear ring is connected with the driven end of the second clutch;
the planet carrier is connected with the driven end of the third clutch and the second motor;
the planet gear is fixedly assembled on the planet carrier; the large gear end of the planet gear is meshed with the gear ring;
a third gear, a ring gear end of the third gear is meshed with a pinion end of the planet gear;
an intermediate shaft gear that meshes with a sun gear end of the third gear, the intermediate shaft gear meshing with a gear of the differential;
the pinion end of the planet gear is also meshed with the sun gear; the sun gear is connected with the driving end of the brake.
Preferably, when the hybrid vehicle drive system enters an ECO first-gear drive state in a pure electric EV mode or enters an ECO first-gear drive state in a hybrid AUTO mode, the engine is stopped, the first motor does not operate, the second motor operates, the first clutch is disconnected, the second clutch and the third clutch are both engaged, the brake is disconnected, and power output by the second motor is transmitted sequentially through the planet carrier, the pinion end of the planet gear, the ring end of the third gear, the sun gear end of the third gear, the intermediate shaft gear, and the gear of the differential and then output to the wheels; meanwhile, the power output by the second motor is transmitted by the planet carrier, the third clutch, the second clutch, the gear ring, the large gear end of the planet gear, the small gear end of the planet gear, the gear ring end of the third gear, the sun gear end of the third gear, the intermediate shaft gear and the gear of the differential mechanism in sequence and then is output to the wheels;
the hybrid electric vehicle driving system enters an ECO two-gear driving state in a pure electric EV mode or enters an ECO two-gear driving state in a hybrid AUTO mode, the engine is stopped, the first motor does not work, the second motor works, the first clutch, the second clutch and the third clutch are all disconnected, the brake is combined, and the power output by the second motor is sequentially output to wheels after being transmitted by a planet carrier, a pinion end of a planet wheel, a ring gear end of a third gear, a sun gear end of the third gear, an intermediate shaft gear and a gear of a differential mechanism.
Preferably, when the hybrid vehicle drive system enters a first-gear SPORT drive state in a pure electric EV mode or a first-gear SPORT drive state in a hybrid AUTO mode, the engine is stopped, the first motor and the second motor operate, the second clutch is engaged, the first clutch and the third clutch are both disengaged, the brake is engaged, and power output by the first motor is transmitted to the wheels sequentially through the one-way clutch, the first gear, the second clutch, the ring gear, the large gear end of the planetary gear, the small gear end of the planetary gear, the ring gear end of the third gear, the sun gear end of the third gear, the countershaft gear, and the gear of the differential; meanwhile, the power output by the second motor is transmitted by the planet carrier, the pinion end of the planet gear, the ring gear end of the third gear, the sun gear end of the third gear, the intermediate shaft gear and the gear of the differential mechanism in sequence and then is output to wheels;
when the hybrid power vehicle driving system enters a two-gear SPORT driving state in a pure electric EV mode or enters a two-gear SPORT driving state in a hybrid AUTO mode, the engine stops, the first motor and the second motor work, the second clutch and the third clutch are combined, the first clutch is disconnected, the brake is disconnected, the power output by the first motor and the power output by the second motor are converged at the planet carrier and the gear ring, and then are transmitted to the wheels through the planet wheel, the gear ring end of the third gear, the sun wheel end of the third gear, the intermediate shaft gear and the gear of the differential in sequence;
when the hybrid electric vehicle driving system enters a three-gear SPORT driving state in a pure electric EV mode or enters a three-gear SPORT driving state in a hybrid AUTO mode, the engine is stopped, the first motor and the second motor work, the first clutch and the second clutch are disconnected, the third clutch is connected, the brake is connected, and the power output by the first motor sequentially passes through the one-way clutch, the first gear, the second gear and the third clutch; and then, the power transmitted by the third clutch and the power output by the second motor are converged at the planet carrier, and then are transmitted by a pinion end of the planet gear, a ring gear end of the third gear, a sun gear end of the third gear, an intermediate shaft gear and a gear of the differential in sequence and then are output to wheels.
Preferably, when the hybrid vehicle driving system enters a series single-gear hybrid driving state in a hybrid AUTO mode, the second clutch and the third clutch are disconnected, and the brake is connected; the first motor slides and rubs the first clutch to start the engine; after the engine is successfully started, the first clutch is combined, the engine drives the first motor to generate power, the first motor generates power to drive the second motor to work, and power output by the second motor is transmitted to wheels through a planet carrier, a pinion end of a planet gear, a ring end of a third gear, a sun gear end of the third gear, a middle shaft gear and a gear of a differential mechanism in sequence;
when the hybrid vehicle driving system enters a double-motor hybrid power generation state in a power generation SAVE mode, the first clutch is combined with the third clutch, the second clutch is disconnected, the brake is disconnected, the power output by the engine drives the first motor to generate power through the first clutch, and then is transmitted to the second motor through the one-way clutch, the first gear, the second gear and the third clutch in sequence, so that the second motor is driven to generate power.
Preferably, when the hybrid vehicle driving system enters a parallel first-gear hybrid driving state in a hybrid AUTO mode, the second motor works, the first clutch and the second clutch are combined, the third clutch is disconnected, and the brake is combined; the first motor slides and rubs the first clutch to start the engine; after the engine is started successfully, the first motor does not work any more; the power output by the engine is transmitted to the wheels through the first clutch, the one-way clutch, the first gear, the second clutch, the gear ring, the large gear end of the planet gear, the small gear end of the planet gear, the gear ring end of the third gear, the sun gear end of the third gear, the intermediate shaft gear and the gear of the differential mechanism in sequence; meanwhile, the power output by the second motor is transmitted by the planet carrier, the pinion end of the planet gear, the ring gear end of the third gear, the sun gear end of the third gear, the intermediate shaft gear and the gear of the differential mechanism in sequence and then is output to wheels;
when the hybrid vehicle driving system enters a parallel two-gear hybrid driving state in a hybrid AUTO mode, the second motor works, the first clutch, the second clutch and the third clutch are all combined, and the brake is disconnected; the first motor slides and rubs the first clutch to start the engine; after the engine is started successfully, the first motor does not work any more; the power output by the engine and the power output by the second motor are converged at the planet carrier and the gear ring, and then are transmitted by the planet gear, the gear ring end of the third gear, the sun gear end of the third gear, the intermediate shaft gear and the gear of the differential mechanism in sequence and then are output to wheels;
when the hybrid vehicle driving system enters a parallel three-gear hybrid driving state in a hybrid AUTO mode, the second motor works, the second clutch is disconnected, the first clutch and the third clutch are combined, and the brake is combined; the first motor slides and rubs the first clutch to start the engine; after the engine is started successfully, the first motor does not work any more; the power output by the engine sequentially passes through the first clutch, the one-way clutch, the first gear, the second gear and the third clutch; and then, the power transmitted by the third clutch and the power output by the second motor are converged at the planet carrier, and then are transmitted by a pinion end of the planet gear, a ring gear end of the third gear, a sun gear end of the third gear, an intermediate shaft gear and a gear of the differential in sequence and then are output to wheels.
Preferably, the hybrid vehicle drive system is in a hybrid AUTO mode,
if the SOC of the residual electric quantity of the hybrid vehicle is greater than a first preset electric quantity M%, the vehicle speed is lower than a first preset vehicle speed V1, and the opening degree of an accelerator pedal is smaller than a first preset opening degree, the driving system of the hybrid vehicle enters an ECO first gear or second gear driving state;
if the remaining electric quantity SOC of the hybrid electric vehicle is greater than a first preset electric quantity M%, the vehicle speed is lower than a first preset vehicle speed V1, and the opening degree of an accelerator pedal is greater than a first preset opening degree, the hybrid electric vehicle driving system enters a first-gear, second-gear or third-gear driving state of SPORT;
if the SOC of the residual electric quantity of the hybrid vehicle is greater than a first preset electric quantity M% and the vehicle speed is higher than a second preset vehicle speed V2, enabling the hybrid vehicle driving system to enter a parallel first-gear, second-gear or third-gear hybrid driving state;
if the SOC of the residual electric quantity of the hybrid vehicle is less than the second preset electric quantity N% and the vehicle speed is lower than the first preset vehicle speed V1, the hybrid vehicle driving system enters a series single-gear hybrid driving state;
the second preset electric quantity is larger than the first preset electric quantity, and the second preset vehicle speed is higher than the first preset vehicle speed.
Preferably, when the hybrid vehicle driving system is in a first, second or third gear SPORT mode, or an ECO first gear SPORT mode, or an ECO second gear SPORT mode, if the remaining power SOC of the hybrid vehicle is greater than the first preset power M% and the vehicle speed is higher than the second preset vehicle speed V2, the hybrid vehicle driving system switches to a parallel first, second or third gear SPORT mode;
when the hybrid electric vehicle driving system is in a parallel first-gear, second-gear or third-gear hybrid driving state in the hybrid AUTO mode, if the remaining electric quantity SOC of the hybrid electric vehicle is greater than a first preset electric quantity M% and the vehicle speed is lower than a third preset vehicle speed V3, the hybrid electric vehicle driving system is switched to enter a first-gear, second-gear or third-gear SPORT driving state or an ECO first-gear or second-gear driving state;
when the hybrid vehicle driving system is in a series single-gear hybrid driving state in a hybrid AUTO mode, if the SOC of the remaining electric quantity of the hybrid vehicle is less than a second preset electric quantity N% and the vehicle speed is higher than a second preset vehicle speed V2, the hybrid vehicle driving system is switched to enter a parallel first-gear, second-gear or third-gear hybrid driving state.
Preferably, the hybrid vehicle drive system enters an electric-only EV mode, a hybrid AUTO mode based on a user instruction, and the hybrid vehicle drive system selects whether to enter a power generation SAVE mode based on a remaining amount of power of the vehicle.
The invention also provides a hybrid vehicle which comprises the hybrid vehicle driving system.
Compared with the prior art, the invention has the following advantages:
through the planetary gear train combination, more modes and gear combinations can be realized under fewer parts, the engine and the motor realize multi-gear driving together, the performance of the hybrid AUTO mode and the pure electric EV mode is improved, the hybrid AUTO mode and the pure electric EV mode can be realized through multi-gear unpowered interrupt gear shifting, and the driving performance is excellent; meanwhile, the pure electric EV mode realizes the selection of single motor and double motor drive, and gives consideration to both dynamic property and economy; the double-motor power generation can be carried out during parking and charging, so that the requirements of high-power utilization and quick charging are met; based on different clutch and brake combinations, the modes can be divided into an electric-only EV mode (ECO/SPORT), an AUTO mode (ECO/SPORT/series/parallel connection) and a power-generation SAVE mode (double-motor) for power generation.
Specifically, the method comprises the following steps: the present invention has: 1. the structure is simple, the number of parts is reduced, the planetary gear train has more compact structure and small space, and the whole vehicle arrangement is convenient; 2. compared with the existing multimode hybrid system, the system has the advantages that a pure electric mode (economy and movement) and more gears are added, and the power and economy are improved; increasing the gears of the engine to realize the three-gear switching; 3. the dual-motor drive can be realized in the pure electric EV mode, the performance and the volume selection of the second motor can be reduced, and the axial size is reduced; 4. the double-motor power generation can be realized by parking and idling charging, and the charging efficiency is higher.
Drawings
FIG. 1 is a schematic diagram of another prior art main engine plant scheme (dual motor single gear);
FIG. 2 is a schematic diagram of another prior art master plant scheme (dual motor, two gear);
FIG. 3 is a schematic configuration diagram of a hybrid vehicle drive system according to an embodiment of the invention;
in the figure, 1 — engine; 2 — first clutch C0; 3-a first motor; 4-a first gear; 5-one-way clutch; 6-a second gear; 7-a second clutch; 8-a third clutch; 9-a planet carrier; 10-a second motor; 11-a gear ring; 12-a planet wheel; 13-a third gear; 14-a countershaft gear; 15-a brake; 16 sun gear.
Detailed Description
In order to make the objects, detailed embodiments, and advantages of the present invention manifest, further detailed description is provided below.
The embodiment of the invention provides a hybrid vehicle driving system, which is based on the existing double-motor system, and compared with the prior art, the invention adopts a three-gear planetary gear train gear shifting scheme to replace a two-gear synchronizer gear shifting structure scheme, adds a one-way clutch 5, and realizes the simultaneous satisfaction of requirements on power performance and economy of a pure electric EV mode and a hybrid AUTO mode by reasonably arranging the power sources of a motor and an engine 1.
Referring to fig. 3, the hybrid vehicle drive system of the embodiment of the invention specifically includes: the engine comprises 1 engine, 2 motors, 5 one-way clutches, 3 clutches, 15 brakes and a first transmission mechanism and a second transmission mechanism. Specifically, the engine 1 and the first motor 3 are connected through a first clutch 2, the first clutch 2 is a wet clutch or an electromagnetic clutch, a driving disc of the first clutch 2 is connected with the engine 1, and a driven disc of the first clutch 2 is connected with a rotor of the first motor 3; meanwhile, the rotor of the first motor 3 is connected with the inner rotor of the one-way clutch 5 through a shaft, the outer rotor of the one-way clutch 5 is connected with the driving ends of the second clutch 7 and the third clutch 8 through a first transmission mechanism, the driven ends of the second clutch 7 and the third clutch 8 and the second motor 10 are connected with the differential and the driving end of the brake 15 through a second transmission mechanism, and the driven end of the brake 15 is rigidly connected with the shell.
Specifically, the first transmission mechanism includes a first gear 4 and a second gear 6, the first gear 4 is connected with an outer rotor of the one-way clutch 5, and the first gear 4 and the second gear 6 are in constant mesh; the driving ends of the second gear 6 and the second clutch 7 are connected with the driving end of the third clutch 8. Meanwhile, the driving end of the second clutch 7 and the driving end of the third clutch 8 are rigidly connected.
Referring to fig. 3, the second transmission mechanism includes: a ring gear 11 connected to a driven end of the second clutch 7; a carrier 9 connecting a driven end of the third clutch 8 and the second motor 10; a planet wheel 12 fixedly assembled on the planet carrier 9; the big gear end of the planet gear 12 is meshed with the gear ring 11; a third gear 13, the ring gear end of the third gear 13 is meshed with the pinion end of the planet gear 12; a counter gear 14 engaged with a sun gear end of the third gear 13, the counter gear 14 being engaged with a gear of the differential; a sun gear 16, the pinion end of the planet gear 12 is also meshed with the sun gear 16; the sun gear 16 is connected with the driving end of the brake 15.
The hybrid vehicle drive system in the embodiment has a plurality of operation modes, specifically, an electric-only EV mode, a hybrid AUTO mode, and a power generation SAVE mode. The system specifically enters into the pure electric EV mode or the hybrid AUTO mode, and the user actively inputs an instruction through a key. The hybrid vehicle drive system selects whether to enter the electric-power-generating SAVE mode based on the remaining amount of electric power of the vehicle.
The hybrid vehicle drive system also has one or more operating states in each operating mode after entering the particular operating mode. Specifically, in the pure electric EV mode, an ECO first-gear or second-gear driving state and a SPORT first-gear, second-gear or third-gear driving state are provided; in the hybrid automatic mode, the hybrid automatic transmission has an ECO first-gear or second-gear driving state, a SPORT first-gear, second-gear or third-gear driving state, a series single-gear hybrid driving state, a parallel first-gear, second-gear or third-gear hybrid driving state; and in the SAVE mode, the double-motor hybrid power generation state is realized.
For the hybrid vehicle driving system, which operation state is entered when entering a specific operation mode needs to be determined by combining parameters such as the remaining capacity SOC of the vehicle, the vehicle speed, and the accelerator pedal opening degree.
In the embodiment of the invention, when the hybrid electric vehicle driving system enters the pure electric EV mode or the hybrid AUTO mode, the pure electric EV mode (ECO/SPORT state) is provided, the ECO state of the pure electric EV mode adopts single motor driving, and the SPORT state of the pure electric EV mode adopts double motor driving. The specific selection of the single-motor drive or the double-motor drive is selected according to the power required by the driver determined by the opening degree of an accelerator pedal. In each mode, whether first, second or third gear operation is specifically employed is also selected based on driver demand power. It is a conventional practice in the art how to select single or dual motor drive and select a particular operating gear based on driver demand power, and this is not modified in this embodiment.
Next, the concrete operation state of the hybrid vehicle drive system in the present embodiment in each mode will be described in detail with reference to table 1 below.
Figure BDA0003239140020000101
TABLE 1 (in the figure, O is bonded, X is broken)
Electric-only EV mode
When the battery charge is high, the electric-only mode can be selected as the EV mode by the driver, and the ECO mode and the SPORT mode are selected in the electric-only EV mode:
ev (eco) mode, in which the engine 1 is stopped, the first electric machine 3 is stopped, and the second electric machine 10 is operated; when the single motor is driven in the first gear, the first clutch 2 is disconnected, the second clutch 7 and the third clutch 8 are both combined, the brake 15 is disconnected, the planet carrier 9 and the planet wheel 12 are fixed into a whole, no relative rotation exists, and the transmission direction of the power output by the second motor 10 is as follows: the second motor 10 → the carrier 9 → the small gear end of the planetary gear 12 (at the same time, the power transmitted by the carrier 9 also passes through the third clutch 8 → the second clutch 7 → the ring gear 11 → the large gear end of the planetary gear 12 → the small gear end of the planetary gear 12) → the ring gear end of the third gear 13 → the sun gear end of the third gear 13 → the intermediate shaft gear 14 → the gear of the differential → the wheel, at this time the second gear 6 drives the first gear 4 to rotate, but because the one-way clutch 5 exists (the one-way clutch 5 is disconnected when the rotation speed of the outer rotor of the one-way clutch 5 is greater than that of the inner rotor of the one-way clutch 5, the one-way clutch 5 is engaged when the rotation speed of the inner rotor of the one-way clutch 5 is greater than that of the outer rotor of the one-way clutch 5), the first gear 4 does not drive the first motor 3 to rotate, and avoids more power consumption than power consumption; when the single motor drives the second gear, the first clutch 2, the second clutch 7 and the third clutch 8 are all disconnected, the brake 15 is combined, and the transmission direction of the power output by the third motor is as follows: third motor → carrier 9 → pinion end of planetary gear 12 → ring gear end of third gear 13 → sun gear end of third gear 13 → intermediate shaft gear 14 → gear of differential → wheel.
Ev (port) mode, in which the engine 1 is stopped, the first electric machine 3 is operated, and the second electric machine 10 is driven; when the double motors are driven in the first gear: the first clutch 2 and the third clutch 8 are both disconnected, the second clutch 7 and the brake 15 are both connected, and the transmission direction of the power output by the first motor 3 is as follows: the first electric machine 3 → the one-way clutch 5 → the first gear 4 → the second gear 6 → the second clutch 7 → the ring gear 11 → the large gear end of the planetary gear 12 → the small gear end of the planetary gear 12 → the ring gear end of the third gear 13 → the sun gear end of the third gear 13 → the intermediate shaft gear 14 → the gear of the differential → the wheel; meanwhile, the transmission direction of the power output by the second motor 10 is as follows: the second motor 10 → the carrier 9 → the pinion end of the planetary gear 12 → the ring gear end of the third gear 13 → the sun gear end of the third gear 13 → the intermediate shaft gear 14 → the gear of the differential → the wheel; when the double motors are driven at two gears: the first clutch 2 and the brake 15 are disconnected, the second clutch 7 and the third clutch 8 are connected, and the transmission direction of the power output by the first motor 3 is as follows: the first motor 3 → the one-way clutch 5 → the first gear 4 → the second gear 6; meanwhile, since the second clutch 7 and the third clutch 8 are engaged, the power output from the first electric machine 3 and the power output from the second electric machine 10 are combined at the carrier 9 and the ring gear 11, and further via the planet gears 12 → the ring gear end of the third gear 13 → the sun gear end of the third gear 13 → the intermediate shaft gear 14 → the gear of the differential → the wheels. When the double-motor three-gear drive is performed: the first clutch 2 and the second clutch 7 are disconnected, the third clutch 8 and the brake 15 are combined, and the power transmission direction output by the first motor 3 is as follows: first electric machine 3 → one-way clutch 5 → first gear 4 → second gear 6 → third clutch 8, and since third clutch 8 is engaged, the power output from first electric machine 3 and the power output from second electric machine 10 are combined at carrier 9, and further pass through pinion end of planetary gear 12 → ring gear end of third gear 13 → sun gear end of third gear 13 → counter shaft gear 14 → differential gear → wheel.
The reverse gear operating condition is based on reverse rotation of the first electric machine 3 and/or the second electric machine 10 in the mode, so that reverse gear is achieved.
(II) mixed-action AUTO mode
1. In the hybrid AUTO mode, the control system switches the EV mode, the series mode and the parallel mode according to signals such as vehicle speed, accelerator pedal opening degree and residual capacity SOC.
When the residual electric quantity SOC is larger than a first preset electric quantity M%, the vehicle speed is lower than a first preset vehicle speed V1, the opening degree of an accelerator pedal is smaller than a preset opening degree x%, the electric vehicle is driven by a single EV motor, the power flow is consistent with an EV (ECO) mode, and the two gears shift.
When the remaining electric quantity SOC is larger than the first preset electric quantity M%, the vehicle speed is lower than the first preset vehicle speed V1, the opening degree of an accelerator pedal is larger than the preset opening degree x%, the driving is performed by two electric motors of the EV, the power flow is consistent with an EV (SPORT) mode, and the three gears shift.
When the remaining capacity SOC is larger than a first preset capacity M%, the vehicle speed is higher than a second preset vehicle speed V1, the EV is switched to a parallel mode: at the moment, the engine 1 is started through the first motor 3 and the first clutch 2 in a friction sliding mode, after the engine 1 is started, the first clutch 2 is combined, the engine 1 works, the first motor 3 does not work, at the moment, the parallel mode engine 1 and the motor are in a mixed three-gear working mode, the power flow is consistent with an EV (sport) mode transmission path (the difference point is that the power of the engine 1 replaces the power of the first motor 3), and three gears are shifted to work.
When the remaining electric quantity SOC is larger than the first preset electric quantity M%, the vehicle speed is lower than a third preset vehicle speed V3, the parallel mode is switched to EV, and the vehicle enters EV (ECO) or EV (SPORT) according to the opening degree of an accelerator pedal, at the moment, the first clutch 2 is disconnected, and the engine 1 is stopped.
When the remaining capacity SOC is less than the second preset capacity N%, the vehicle speed is lower than the first preset vehicle speed V1, under any throttle, the series mode is as follows: the second clutch 7 and the third clutch 8 are disconnected, the brake 15 is combined, the first motor 3 rubs the first clutch 2 to start the engine 1 at the moment, after the start is successful, the first clutch 2 is combined, the engine 1 drives the first motor 3 to generate electricity, the electricity generated by the first motor 3 is used for driving the second motor 10 to work, and at the moment, the power current and the states of each execution system of the second motor 10 are consistent with the second gear driving of the single motor in EV (ECO) mode (single-motor pure electric mode for two gears).
When the remaining power SOC is smaller than the second preset power N%, the vehicle speed is higher than the second preset vehicle speed V3, and the series mode is switched to the parallel mode under any accelerator pedal opening. The engine 1 works, the first motor 3 does not work, at the moment, the parallel mode engine 1 and the motor are in a three-gear working mode in a hybrid mode, and the power flow is consistent with the EV (SPORT) mode (first gear, second gear and third gear) transmission path (the difference point is that the power of the engine 1 replaces the power of the first motor 3).
Specifically, when the hybrid vehicle drive system enters a series single-gear hybrid drive state in the hybrid AUTO mode, the second clutch 7 and the third clutch 8 are disengaged, and the brake 15 is engaged; the first motor 3 slides and rubs the first clutch 2 to start the engine 1; after the engine 1 is successfully started, the first clutch 2 is engaged, the engine 1 drives the first electric machine 3 to generate electricity, the first electric machine 3 generates electricity to drive the second electric machine 10 to work, and the power output by the second electric machine 10 is sequentially transmitted through the planet carrier 9 → the pinion end of the planet gear 12 → the ring gear end of the third gear 13 → the sun gear end of the third gear 13 → the intermediate shaft gear 14 → the gear of the differential and then output to the wheels.
When the hybrid vehicle drive system enters a dual-motor hybrid power generation state in a power generation SAVE mode, the first clutch 2 and the third clutch 8 are engaged, the second clutch 7 is disengaged, the brake 15 is disengaged, the first motor 3 does not operate, the power output by the engine 1 drives the first motor 3 to generate power through the first clutch 2, and then is sequentially transmitted to the second motor 10 through the one-way clutch 5 → the first gear 4 → the second gear 6 → the third clutch 8, and further drives the second motor 10 to generate power.
When the hybrid vehicle driving system enters a parallel first-gear hybrid driving state in a hybrid AUTO mode, the second motor 10 works, the second clutch 7 is combined with the first clutch 2, the third clutch 8 is disconnected, and the brake 15 is combined; the first motor 3 slides and rubs the first clutch 2 to start the engine 1; after the engine 1 is started successfully, the first electric machine 3 does not work any more; the power output by the engine 1 is sequentially transmitted via the first clutch 2 → the one-way clutch 5 → the first gear 4 → the second gear 6 → the second clutch 7 → the ring gear 11 → the large gear end of the planetary gear 12 → the small gear end of the planetary gear 12 → the ring gear end of the third gear 13 → the sun gear end of the third gear 13 → the intermediate shaft gear 14 → the gear of the differential, and then output to the wheels; meanwhile, the power output by the second electric machine 10 is sequentially transmitted and output to the wheels via the carrier 9 → the pinion end of the planetary gear 12 → the ring gear end of the third gear 13 → the sun gear end of the third gear 13 → the intermediate shaft gear 14 → the gear of the differential.
When the hybrid vehicle driving system enters a parallel two-gear hybrid driving state in a hybrid AUTO mode, the second motor 10 works, the first clutch 2, the second clutch 7 and the third clutch 8 are all combined, and the brake 15 is disconnected; the first motor 3 slides and rubs the first clutch 2 to start the engine 1; after the engine 1 is started successfully, the first electric machine 3 does not work any more; the power output by the engine 1 and the power output by the second electric machine 10 are combined at the planet carrier 9 and the ring gear 11, and then sequentially transmitted through the planet gear 12 → the ring gear end of the third gear 13 → the sun gear end of the third gear 13 → the intermediate shaft gear 14 → the gear of the differential, and then output to the wheels;
when the hybrid vehicle driving system enters a parallel three-gear hybrid driving state in a hybrid AUTO mode, the second motor 10 works, the second clutch 7 is disconnected, the first clutch 2 and the third clutch 8 are combined, and the brake 15 is combined; the first motor 3 slides and rubs the first clutch 2 to start the engine 1; after the engine 1 is started successfully, the first electric machine 3 does not work any more; the power output by the engine 1 sequentially passes through the first clutch 2 → the one-way clutch 5 → the first gear 4 → the second gear 6 → the third clutch 8; thereafter, the power transmitted through the third clutch 8 and the power output from the second electric machine 10 are combined at the carrier 9, and then sequentially transmitted through the pinion end of the planetary gear 12 → the ring gear end of the third gear 13 → the sun gear end of the third gear 13 → the counter gear 14 → the gear of the differential, and then output to the wheels.
SAVE mode of power generation
When the electric quantity is low, the electric quantity can be forcibly charged according to the requirement of a driver, the power generation SAVE mode is selected, at the moment, the first clutch 2 and the third clutch 8 are combined, the second clutch 7 and the brake 15 are disconnected, the power of the engine 1 drives the first motor 3 to generate power through the first clutch 2, and then the power is generated through the one-way clutch 5 → the first gear 4 → the second gear 6 → the third clutch 8 → the second motor 10, and the double motors generate power simultaneously to rapidly charge the battery or supply power to the power supply outside the vehicle, so that the power generation efficiency is improved.
According to the invention, through the optimized design of the gear train structure and the combination of the planetary gear 12 system, the requirements of pure electric and hybrid multi-gear multi-mode are obtained, the climbing working condition and the power economy in the whole vehicle acceleration process are improved, and the multi-mode working states of pure electric, hybrid, charging and the like are met.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (11)

1. A hybrid vehicle drive system, characterized by comprising:
the device comprises an engine (1), a first motor (3), a second motor (10), a first clutch (2), a second clutch (7), a third clutch (8), a one-way clutch (5), a differential, a brake (15), a first transmission mechanism and a second transmission mechanism;
the engine (1) is connected with the first motor (3) through the first clutch (2);
the first motor (3) is connected with an inner rotor of the one-way clutch (5) through a shaft;
the outer rotor of the one-way clutch (5) is connected with the driving end of the second clutch (7) and the driving end of the third clutch (8) through the first transmission mechanism; the driving end of the second clutch (7) is rigidly connected with the driving end of the third clutch (8);
the driven end of the second clutch (7), the driven end of the third clutch (8) and the second motor (10) are connected with the differential and the driving end of the brake (15) through the second transmission mechanism; the driven end of the brake (15) is rigidly connected with the transmission box body;
-entering the hybrid vehicle drive system by controlling the first to third clutches (2-8), the engine (1), the first electric machine (3) and the second electric machine (10), the brake (15):
an ECO first-gear or second-gear driving state and a SPORT first-gear, second-gear or third-gear driving state in the pure electric EV mode;
an ECO first-gear or second-gear driving state in a hybrid AUTO mode, a SPORT first-gear, second-gear or third-gear driving state, a series single-gear hybrid driving state, a parallel first-gear, second-gear or third-gear hybrid driving state; or
And a double-motor hybrid power generation state in the power generation SAVE mode.
2. The system of claim 1, wherein the first transmission comprises:
a first gear (4) connected to the outer rotor of the one-way clutch (5);
a second gear (6) engaged with the first gear (4), the second gear (6) being connected to the driving end of the second clutch (7) and the driving end of the third clutch (8), respectively.
3. The system of claim 2, wherein the second transmission mechanism comprises:
a ring gear (11) connected to a driven end of the second clutch (7);
a carrier (9) connecting a driven end of the third clutch (8) and the second motor (10);
a planet wheel (12) fixedly mounted on the planet carrier (9); the big gear end of the planet gear (12) is meshed with the gear ring (11);
a third gear (13), the ring gear end of the third gear (13) being in mesh with the pinion end of the planet gear (12);
an intermediate shaft gear (14) which meshes with the sun gear end of the third gear (13), the intermediate shaft gear (14) meshing with a gear of the differential;
a sun wheel (16), the pinion end of the planet wheel (12) also meshing with the sun wheel (16); the sun gear (16) is connected with the driving end of the brake (15).
4. The system of claim 3,
when the hybrid electric vehicle driving system enters an ECO first-gear driving state in a pure electric EV mode or enters an ECO first-gear driving state in a hybrid AUTO mode, the engine (1) is stopped, the first motor (3) does not work, the second motor (10) works, the first clutch (2) is disconnected, the second clutch (7) and the third clutch (8) are combined, the brake (15) is disconnected, and power output by the second motor (10) is transmitted to wheels through a planet carrier (9), a pinion end of a planet wheel (12), a gear ring end of a third gear (13), a sun wheel end of the third gear (13), an intermediate shaft gear (14) and a gear of a differential mechanism in sequence; meanwhile, the power output by the second motor (10) is transmitted by a planet carrier (9), a third clutch (8), a second clutch (7), a gear ring (11), a large gear end of a planet gear (12), a small gear end of the planet gear (12), a gear ring end of a third gear (13), a sun gear end of the third gear (13), a middle shaft gear (14) and a gear of a differential mechanism in sequence and then output to wheels;
the hybrid vehicle driving system enters an ECO two-gear driving state in a pure electric EV mode or enters an ECO two-gear driving state in a hybrid AUTO mode, the engine (1) stops, the first motor (3) does not work, the second motor (10) works, the first clutch (2), the second clutch (7) and the third clutch (8) are all disconnected, the brake (15) is combined, and the power output by the second motor (10) is output to wheels after being transmitted by a pinion end of a planet carrier (9) and a planet wheel (12), a gear ring end of a third gear (13), a sun wheel end of the third gear (13), an intermediate shaft gear (14) and gears of a differential mechanism in sequence.
5. The system of claim 3,
when the hybrid vehicle driving system enters a first-gear SPORT driving state in a pure electric EV mode or enters a first-gear SPORT driving state in a hybrid AUTO mode, the engine (1) is stopped, the first motor (3) and the second motor (10) work, the second clutch (7) is engaged, the first clutch (2) and the third clutch (8) are both disengaged, the brake (15) is combined, and the power output by the first motor (3) is transmitted by the one-way clutch (5), the first gear (4), the second gear (6), the second clutch (7), the gear ring (11), the large gear end of the planet gear (12), the small gear end of the planet gear (12), the gear ring end of the third gear (13), the sun gear end of the third gear (13), the intermediate shaft gear (14) and the gear of the differential mechanism in sequence and then output to wheels; meanwhile, the power output by the second motor (10) is transmitted by a planet carrier (9), a pinion end of a planet gear (12), a gear ring end of a third gear (13), a sun gear end of the third gear (13), an intermediate shaft gear (14) and a gear of a differential mechanism in sequence and then is output to wheels;
when the hybrid vehicle driving system enters a two-gear SPORT driving state in a pure electric EV mode or enters a two-gear SPORT driving state in a hybrid AUTO mode, the engine (1) stops, the first motor (3) and the second motor (10) work, the second clutch (7) and the third clutch (8) are combined, the first clutch (2) is disconnected, the brake (15) is disconnected, the power output by the first motor (3) and the power output by the second motor (10) are converged at the planet carrier (9) and the gear ring (11), and then are transmitted to wheels through the planet wheel (12), the gear ring end of the third gear (13), the sun wheel end of the third gear (13), the intermediate shaft gear (14) and the gear of the differential mechanism in sequence;
when the hybrid vehicle driving system enters a three-gear SPORT driving state in a pure electric EV mode or enters a three-gear SPORT driving state in a hybrid AUTO mode, the engine (1) is stopped, the first motor (3) and the second motor (10) work, the first clutch (2) and the second clutch (7) are disconnected, the third clutch (8) is combined, the brake (15) is combined, and the power output by the first motor (3) sequentially passes through the one-way clutch (5), the first gear (4), the second gear (6) and the third clutch (8); and then, the power transmitted by the third clutch (8) and the power output by the second motor (10) are converged at the planet carrier (9), and then are transmitted by a pinion end of the planet wheel (12), a ring gear end of the third gear (13), a sun wheel end of the third gear (13), a middle shaft gear (14) and a gear of the differential mechanism in sequence and then are output to wheels.
6. The system of claim 3,
when the hybrid vehicle driving system enters a series single-gear hybrid driving state in a hybrid AUTO mode, the second clutch (7) and the third clutch (8) are disconnected, and the brake (15) is combined; the first motor (3) slides and rubs the first clutch (2) to start the engine (1); after an engine (1) is successfully started, the first clutch (2) is combined, the engine (1) drives the first motor (3) to generate electricity, the first motor (3) generates electricity to drive the second motor (10) to work, and power output by the second motor (10) is transmitted by a planet carrier (9), a pinion end of a planet wheel (12), a gear ring end of a third gear (13), a sun wheel end of the third gear (13), an intermediate shaft gear (14) and a gear of a differential mechanism in sequence and then output to wheels;
when the hybrid vehicle driving system enters a double-motor hybrid power generation state in a power generation SAVE mode, the first clutch (2) and the third clutch (8) are combined, the second clutch (7) is disconnected, the brake (15) is disconnected, the power output by the engine (1) drives the first motor (3) to generate power through the first clutch (2), and is transmitted to the second motor (10) through the one-way clutch (5), the first gear (4), the second gear (6) and the third clutch (8) in sequence, so that the second motor (10) is driven to generate power.
7. The system of claim 3,
when the hybrid vehicle driving system enters a parallel first-gear hybrid driving state in a hybrid AUTO mode, the second motor (10) works, the first clutch (2) and the second clutch (7) are combined, the third clutch (8) is disconnected, and the brake (15) is combined; the first motor (3) slides and rubs the first clutch (2) to start the engine (1); after the engine (1) is started successfully, the first motor (3) does not work any more; the power output by the engine (1) is transmitted by the first clutch (2), the one-way clutch (5), the first gear (4), the second gear (6), the second clutch (7), the gear ring (11), the large gear end of the planet gear (12), the small gear end of the planet gear (12), the gear ring end of the third gear (13), the sun gear end of the third gear (13), the middle shaft gear (14) and the gear of the differential mechanism in sequence and then output to wheels; meanwhile, the power output by the second motor (10) is transmitted by a planet carrier (9), a pinion end of a planet gear (12), a gear ring end of a third gear (13), a sun gear end of the third gear (13), an intermediate shaft gear (14) and a gear of a differential mechanism in sequence and then is output to wheels;
when the hybrid vehicle driving system enters a parallel two-gear hybrid driving state in a hybrid AUTO mode, the second motor (10) works, the first clutch (2), the second clutch (7) and the third clutch (8) are all combined, and the brake (15) is disconnected; the first motor (3) slides and rubs the first clutch (2) to start the engine (1); after the engine (1) is started successfully, the first motor (3) does not work any more; the power output by the engine (1) and the power output by the second motor (10) are converged at the planet carrier (9) and the gear ring (11), and then are transmitted by the planet wheel (12), the gear ring end of the third gear (13), the sun wheel end of the third gear (13), the intermediate shaft gear (14) and the gear of the differential mechanism in sequence and then output to wheels;
when the hybrid vehicle driving system enters a parallel three-gear hybrid driving state in a hybrid AUTO mode, the second motor (10) works, the second clutch (7) is disconnected, the first clutch (2) and the third clutch (8) are combined, and the brake (15) is combined; the first motor (3) slides and rubs the first clutch (2) to start the engine (1); after the engine (1) is started successfully, the first motor (3) does not work any more; the power output by the engine (1) sequentially passes through the first clutch (2), the one-way clutch (5), the first gear (4), the second gear (6) and the third clutch (8); and then, the power transmitted by the third clutch (8) and the power output by the second motor (10) are converged at the planet carrier (9), and then are transmitted by a pinion end of the planet wheel (12), a ring gear end of the third gear (13), a sun wheel end of the third gear (13), a middle shaft gear (14) and a gear of the differential mechanism in sequence and then are output to wheels.
8. The system of claim 1, wherein the hybrid vehicle drive system is in a hybrid AUTO mode,
if the SOC of the residual electric quantity of the hybrid vehicle is greater than a first preset electric quantity M%, the vehicle speed is lower than a first preset vehicle speed V1, and the opening degree of an accelerator pedal is smaller than a first preset opening degree, the driving system of the hybrid vehicle enters an ECO first gear or second gear driving state;
if the remaining electric quantity SOC of the hybrid electric vehicle is greater than a first preset electric quantity M%, the vehicle speed is lower than a first preset vehicle speed V1, and the opening degree of an accelerator pedal is greater than a first preset opening degree, the hybrid electric vehicle driving system enters a first-gear, second-gear or third-gear driving state of SPORT;
if the SOC of the residual electric quantity of the hybrid vehicle is greater than a first preset electric quantity M% and the vehicle speed is higher than a second preset vehicle speed V2, enabling the hybrid vehicle driving system to enter a parallel first-gear, second-gear or third-gear hybrid driving state;
if the SOC of the residual electric quantity of the hybrid vehicle is less than the second preset electric quantity N% and the vehicle speed is lower than the first preset vehicle speed V1, the hybrid vehicle driving system enters a series single-gear hybrid driving state;
the second preset electric quantity is larger than the first preset electric quantity, and the second preset vehicle speed is higher than the first preset vehicle speed.
9. The system of claim 8,
when the hybrid electric vehicle driving system is in a first-gear, second-gear or third-gear SPORT driving state or an ECO first-gear or second-gear driving state in a hybrid AUTO mode, if the remaining electric quantity SOC of the hybrid electric vehicle is greater than a first preset electric quantity M% and the vehicle speed is higher than a second preset vehicle speed V2, the hybrid electric vehicle driving system is switched to enter a parallel first-gear, second-gear or third-gear hybrid driving state;
when the hybrid electric vehicle driving system is in a parallel first-gear, second-gear or third-gear hybrid driving state in the hybrid AUTO mode, if the remaining electric quantity SOC of the hybrid electric vehicle is greater than a first preset electric quantity M% and the vehicle speed is lower than a third preset vehicle speed V3, the hybrid electric vehicle driving system is switched to enter a first-gear, second-gear or third-gear SPORT driving state or an ECO first-gear or second-gear driving state;
when the hybrid vehicle driving system is in a series single-gear hybrid driving state in a hybrid AUTO mode, if the SOC of the remaining electric quantity of the hybrid vehicle is less than a second preset electric quantity N% and the vehicle speed is higher than a second preset vehicle speed V2, the hybrid vehicle driving system is switched to enter a parallel first-gear, second-gear or third-gear hybrid driving state.
10. The system of claim 1, wherein the hybrid vehicle drive system enters an electric-only EV mode, a hybrid AUTO mode based on a user command, and the hybrid vehicle drive system selects whether to enter a generate SAVE mode based on a remaining amount of power of the vehicle.
11. A hybrid vehicle characterized by comprising the hybrid vehicle drive system of any one of claims 1 to 10.
CN202111018998.4A 2021-08-31 2021-08-31 Hybrid vehicle driving system and hybrid vehicle Active CN113580920B (en)

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