CN113580920B - Hybrid vehicle driving system and hybrid vehicle - Google Patents

Hybrid vehicle driving system and hybrid vehicle Download PDF

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Publication number
CN113580920B
CN113580920B CN202111018998.4A CN202111018998A CN113580920B CN 113580920 B CN113580920 B CN 113580920B CN 202111018998 A CN202111018998 A CN 202111018998A CN 113580920 B CN113580920 B CN 113580920B
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gear
clutch
motor
hybrid
driving state
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CN113580920A (en
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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

The present invention relates to a hybrid vehicle driving system and a hybrid vehicle, including: the device 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 driving ends of the differential and 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 multi-energy hybrid power driving, in particular to a hybrid power vehicle driving system and a hybrid power vehicle.
Background
At present, the hybrid transmission DHT based on double motor development has the advantages of small volume, compact structure, low development difficulty and the like, and has wide application potential of vehicle types. The primary product of early promotion is double-motor single-gear (as shown in figure 1), and is applied to a plurality of enterprises such as Honda, mitsubishi, guangdong and the like. Meanwhile, a new generation of double-motor multi-gear scheme is promoted and mass production (as shown in fig. 2) is started, and development and promotion of double-motor high-performance products are further increased in the future along with further reduction of motor cost of automobile enterprises such as Biedi, jili, 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 dynamic performance (a large speed ratio is required) and high-speed economy (a small speed ratio is required) cannot be considered, motor driving is realized during low-speed and climbing, the power is directly influenced by motor performance due to the single speed ratio, and the size of a selected high-power motor is large, so that the arrangement and the development are not facilitated; during high-speed driving, the engine has high noise due to high single speed ratio and high rotating speed. 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-saving economic area, and the economical efficiency is improved to a certain extent; meanwhile, the engine speed can be reduced by multiple gears, the engine noise is reduced, and the NVH performance is improved.
Aiming at the prior 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 selected for convenient arrangement, 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 EV mode, is driven by a single motor and a single gear, and has the advantages of pure electric performance not being effectively improved and poor drivability.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a hybrid power vehicle driving system and a hybrid power vehicle, which are used for solving the defects of few pure electric modes, poor power economy, poor economy in a hybrid automatic mode, poor gear shifting interrupt driving feeling and the like of the existing multimode hybrid power system structure.
The technical scheme of the invention is as follows:
The present invention provides a hybrid vehicle drive system including:
The device 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 the 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;
The hybrid vehicle drive system is caused to enter by controlling the first to third clutches, the engine, the first motor, and the second motor, the brake:
An ECO first gear or second gear driving state, a SPORT first gear, second gear or third gear driving state under the pure electric EV mode;
a first-gear or second-gear driving state of the SPORT in the hybrid AUTO mode, a first-gear, second-gear or third-gear driving state of the SPORT, a series single-gear hybrid driving state, a parallel first-gear, second-gear or third-gear hybrid driving state; or (b)
And a dual-motor hybrid power generation state in a 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 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:
a ring gear connected to the driven end of the second clutch;
A carrier connecting the driven end of the third clutch and the second motor;
a planetary gear fixedly assembled on the planetary carrier; the large gear end of the planet gear is meshed with the gear ring;
the gear ring end of the third gear is meshed with the pinion end of the planet gear;
A countershaft gear meshed with a sun gear end of the third gear, the countershaft gear meshed with a gear of the differential;
the pinion end of the planet wheel is meshed with the sun wheel; the sun gear is connected with the driving end of the brake.
Preferably, when the driving system of the hybrid vehicle enters an ECO first-gear driving state in a pure electric EV mode or an ECO first-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 is disconnected, the second clutch and the third clutch are both combined, the brake is disconnected, and the power output by the second motor is sequentially transmitted through 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, a countershaft gear and a gear of a differential and then is output to wheels; meanwhile, the power output by the second motor is transmitted to wheels sequentially through a planet carrier, a third clutch, a second clutch, a gear ring, a large gear end of a planet gear, a small gear end of the planet gear, a gear 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;
When the driving system of the hybrid electric vehicle enters an ECO second gear driving state under a pure electric EV mode or enters an ECO second gear driving state under a hybrid automatic TO 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 transmitted to wheels through a planet carrier, a pinion end of a planet wheel, a gear 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 and then is output.
Preferably, when the hybrid vehicle driving system enters a SPORT first gear driving state in a pure electric EV mode or enters a SPORT first gear driving state in a hybrid AUTO mode, the engine is stopped, the first motor and the second motor work, the second clutch is combined, the first clutch and the third clutch are both disconnected, the brake is combined, and the power output by the first motor is sequentially transmitted to wheels through the one-way clutch, the first gear, the second clutch, the gear ring, the large gear end of the planetary gear, the small gear end of the planetary gear, the gear ring end of the third gear, the sun gear end of the third gear, the intermediate shaft gear and the gears of the differential mechanism and then output to the wheels; meanwhile, the power output by the second motor is transmitted to wheels sequentially through a planet carrier, a pinion end of a planet wheel, a gear ring end of a third gear, a sun wheel end of the third gear, a middle shaft gear and a gear of a differential mechanism;
when the hybrid electric vehicle driving system enters a SPORT second gear driving state under a pure electric EV mode or enters a SPORT second gear driving state under a hybrid AUTO mode, the engine is stopped, 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 combined at a planet carrier and a gear ring, and then are sequentially transmitted to wheels through a planetary gear, a gear ring end of a third gear, a sun gear end of the third gear, a countershaft gear and a gear of a differential mechanism;
When the hybrid electric vehicle driving system enters a SPORT three-gear driving state under a pure electric EV mode or enters a SPORT three-gear driving state under 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 combined, the brake is combined, 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; the power transmitted through the third clutch and the power output by the second motor are converged at the planet carrier, and then are transmitted to wheels through the pinion end of the planet wheel, the gear ring end of the third gear, the sun gear end of the third gear, the intermediate shaft gear and the gears of the differential mechanism in sequence.
Preferably, when the hybrid vehicle driving system enters a serial single-gear hybrid driving state in a hybrid AUTO mode, the second clutch and the third clutch are disconnected, and the brake is combined; the first motor first slides and rubs the first clutch to start the engine; after the engine is started successfully, the first clutch is combined, the engine drives the first motor to generate electricity, the first motor is driven to generate electricity to drive the second motor to work, and the power output by the second motor is sequentially transmitted to wheels through a planet carrier, a pinion end of a planet wheel, a gear ring end of a third gear, a sun gear end of the third gear, a countershaft gear and a gear of a differential mechanism and then is output to the wheels;
When the hybrid power vehicle driving system enters a double-motor hybrid power generation state under a power generation SAVE mode, the first clutch is combined with the third clutch, the second clutch is disconnected, the brake is disconnected, power output by the engine drives the first motor to generate power through the first clutch, and then the power 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 first 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 wheels sequentially 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 gears of the differential mechanism and then output to the wheels; meanwhile, the power output by the second motor is transmitted to wheels sequentially through a planet carrier, a pinion end of a planet wheel, a gear ring end of a third gear, a sun wheel end of the third gear, a middle shaft gear and a gear of a differential mechanism;
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 combined, and the brake is disconnected; the first motor first 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 planetary frame and the gear ring, and then are transmitted to wheels after being sequentially transmitted through the planetary gear, the gear ring end of the third gear, the sun gear end of the third gear, the intermediate shaft gear and the gears of the differential mechanism;
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 is combined with the third clutch, and the brake is combined; the first motor first 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; the power transmitted through the third clutch and the power output by the second motor are converged at the planet carrier, and then are transmitted to wheels through the pinion end of the planet wheel, the gear ring end of the third gear, the sun gear end of the third gear, the intermediate shaft gear and the gears of the differential mechanism in sequence.
Preferably, the hybrid vehicle drive system is configured to operate in a hybrid AUTO mode,
If the residual electric quantity SOC of the hybrid power vehicle is larger than the first preset electric quantity M%, the vehicle speed is lower than the first preset vehicle speed V1, and the accelerator pedal opening is smaller than the first preset opening, the driving system of the hybrid power vehicle enters an ECO first gear or second gear driving state;
If the residual electric quantity SOC of the hybrid power vehicle is larger than the first preset electric quantity M, the vehicle speed is lower than the first preset vehicle speed V1, and the accelerator pedal opening is larger than the first preset opening, the hybrid power vehicle driving system enters a SPORT first gear, second gear or third gear driving state;
If the residual electric quantity SOC of the hybrid power vehicle is larger than the first preset electric quantity M and the vehicle speed is higher than the second preset vehicle speed V2, the hybrid power vehicle driving system enters a first-gear, second-gear or third-gear parallel hybrid driving state;
If the residual electric quantity SOC of the hybrid power vehicle is smaller than the second preset electric quantity N and the vehicle speed is lower than the first preset vehicle speed V1, the hybrid power vehicle driving system enters a serial 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 SPORT first gear, second gear or third gear driving state or an ECO first gear driving state or an ECO second gear driving state in a hybrid AUTO mode, if the remaining capacity SOC of the hybrid vehicle is greater than a first preset capacity M and the vehicle speed is greater than a second preset vehicle speed V2, the hybrid vehicle driving system is switched into a parallel first gear, second gear or third gear hybrid driving state;
When the hybrid vehicle driving system is in a parallel first-gear, second-gear or third-gear hybrid driving state in a hybrid AUTO mode, if the residual electric quantity SOC of the hybrid vehicle is larger than the first preset electric quantity M and the vehicle speed is lower than a third preset vehicle speed V3, the hybrid vehicle driving system is switched into a SPORT first-gear, second-gear or third-gear driving state or an ECO first-gear or second-gear driving state;
When the hybrid vehicle driving system is in a serial single-gear hybrid driving state in a hybrid AUTO mode, if the residual electric quantity SOC of the hybrid vehicle is smaller than the second preset electric quantity N and the vehicle speed is higher than the second preset vehicle speed V2, the hybrid vehicle driving system is switched into a parallel first-gear, second-gear or third-gear hybrid driving state.
Preferably, the hybrid vehicle drive system enters the electric-only EV mode, the hybrid AUTO mode, based on a user instruction, and selects whether to enter the power generation SAVE mode, based on the remaining amount of power of the vehicle.
The invention also provides a hybrid vehicle comprising 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 jointly realize multi-gear driving, the performance of the hybrid AUTO mode and the performance of the pure electric EV mode are improved, the hybrid AUTO mode and the pure electric EV mode can be subjected to multi-gear unpowered interruption gear shifting, and the drivability is excellent; meanwhile, the pure electric EV mode realizes single-motor and double-motor driving selection, and combines the dynamic property and the economical efficiency; when the vehicle is stopped for charging, the double motors can generate electricity, so that the requirements of high-power electricity utilization and quick charging are met; modes can be divided into electric-only EV mode (ECO/SPORT), AUTO mode (ECO/SPORT/series/parallel), electric-power-generation SAVE mode (Dual-Motor-electric-generation SAVE mode) based on different clutch and brake combinations.
Specifically: the invention comprises: 1. the planetary gear train has the advantages of simple structure, less increase of parts, more compact structure, small space and convenience for whole vehicle arrangement; 2. compared with the existing multimode hybrid system, the pure electric mode (economy and sport) and more gears are added, and the power and economy are improved; the gear of the engine is increased, and three-gear switching is realized; 3. the dual-motor driving can be realized in the pure electric EV mode, the performance and volume selection of the second motor can be reduced, and the axial size is reduced; 4. the power generation of the double motors can be realized through the idle speed charging during parking, and the charging efficiency is higher.
Drawings
FIG. 1 is a prior art alternative main machine plant (dual motor single gear);
FIG. 2 is a prior art alternative main machine plant (two motor two gear);
FIG. 3 is a schematic diagram of a hybrid vehicle drive system according to an embodiment of the present invention;
in the figure, 1-engine; 2—a 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-planet wheels; 13-a third gear; 14-countershaft gears; 15-a brake; 16 sun gear.
Detailed Description
The invention is further described in detail below in order to enable its objects, detailed embodiments, and advantages and disadvantages to be revealed.
Compared with the prior art, the system uses a three-gear planetary gear train gear shifting scheme to replace a two-gear synchronizer gear shifting structure scheme, a one-way clutch 5 is added, and the power sources of a motor and an engine 1 are reasonably arranged, so that the requirements of both power performance and economy for a pure electric EV mode and a hybrid automatic mode are met.
Referring to fig. 3, the hybrid vehicle driving 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 driving ends of the differential and 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 the outer rotor of the one-way clutch 5, and the first gear 4 and the second gear 6 are in constant mesh; the second gear 6 is connected to the drive end of the second clutch 7 and the drive end of the third clutch 8. At the same time, the drive end of the second clutch 7 and the drive end of the third clutch 8 are rigidly connected.
Referring to fig. 3, the second transmission mechanism includes: a ring gear 11 connected to the driven end of the second clutch 7; a carrier 9 connecting the driven end of the third clutch 8 and the second motor 10; a planetary gear 12 fixedly fitted to the carrier 9; the large gear end of the planet gear 12 is meshed with the gear ring 11; a third gear 13, wherein a gear ring end of the third gear 13 is meshed with a 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 also being in mesh with the sun gear 16; the sun gear 16 is connected to the drive end of the brake 15.
The above-described hybrid vehicle drive system in the present embodiment has a plurality of operation modes, specifically, an electric-only EV mode, a hybrid AUTO mode, and a power generation SAVE mode. Which mode of the pure electric EV mode and the hybrid AUTO mode is specifically entered by the system is determined by the user actively inputting instructions through keys. The hybrid vehicle drive system selects whether to enter the power generation SAVE mode based on the remaining amount of power of the vehicle.
The hybrid vehicle drive system also has one or more operating states in each operating mode after entering a particular operating mode. Specifically, in the electric EV mode, there is an ECO first-gear or second-gear drive state, a SPORT first-gear, second-gear or third-gear drive state; in the mixed AUTO mode, the engine has an ECO first gear or second gear driving state, an SPORT first gear, second gear or third gear driving state, a serial single gear mixed driving state, a parallel first gear, second gear or third gear mixed driving state; and in the power generation SAVE mode, a two-motor hybrid power generation state is provided.
In a hybrid vehicle driving system, it is necessary to determine which operation state is to be entered when a specific operation mode is entered, by combining parameters such as a remaining power SOC of the vehicle, a vehicle speed, and an accelerator pedal opening.
In the embodiment of the invention, when the hybrid electric vehicle driving system enters the electric-only EV mode or the hybrid AUTO mode, the electric-only EV mode (ECO/SPORT state) is provided, the ECO state of the electric-only EV mode is driven by a single motor, and the SPORT state of the electric-only EV mode is driven by a double motor. The specific choice of single motor drive or double motor drive is selected according to the magnitude of the driver demand power determined by the opening degree of the accelerator pedal. In addition, in each mode, the specific use of first gear, second gear or third gear operation is also selected based on the driver demand power. How to select a single motor drive or a dual motor drive and to select a specific operating gear according to the driver demand power is a conventional approach in the art, which is not an improvement in the present embodiment.
Next, the specific operating states of the hybrid vehicle drive system in the embodiment in each mode will be described in detail with reference to table 1 below.
Table 1 (O in the figure is combined and X is disconnected)
Electric-only EV mode
When the battery power is high, the pure electric mode can be selected by the driver to be the EV mode actively, and the pure electric EV mode is selected by ECO and SPORT modes at the same time:
Ev (ECO) mode, when the engine 1 is stopped, the first motor 3 stops operating, and the second motor 10 operates; when the single motor is driven in one 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 power output by the second motor 10 is as follows: the second motor 10- > the planet carrier 9- > the pinion end of the planet wheel 12 (meanwhile, the power transmitted by the planet carrier 9 also passes through the third clutch 8- > the second clutch 7- > the gear ring 11- > the large gear end of the planet wheel 12- > the pinion end of the planet wheel 12- > the gear ring 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 mechanism- > the wheel, and at this time, the second gear 6 rotates with the first gear 4, but because the one-way clutch 5 exists (when the rotation speed of the outer rotor of the one-way clutch 5 is greater than the rotation speed of the inner rotor of the one-way clutch 5, the one-way clutch 5 is disconnected, and when the rotation speed of the inner rotor of the one-way clutch 5 is greater than the rotation speed of the outer rotor of the one-way clutch 5, the one-way clutch 5 is combined), the first gear 4 does not drive the first motor 3 to rotate, so that more power is avoided; when the single motor is driven by two gears, 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→planet carrier 9→pinion end of planet wheel 12→ring gear end of third gear 13→sun gear end of third gear 13→intermediate shaft gear 14→gear of differential gear→wheel.
Ev (SPORT) mode, when 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 by one gear: the first clutch 2 and the third clutch 8 are both disconnected, the second clutch 7 and the brake 15 are both engaged, and the transmission direction of the power output by the first motor 3 is: the first motor 3- & gtthe one-way clutch 5- & gtthe first gear 4- & gtthe second gear 6- & gtthe second clutch 7- & gtthe gear ring 11- & gtthe large gear end of the planet gear 12- & gtthe small gear end of the planet gear 12- & gtthe gear ring end of the third gear 13- & gtthe sun gear end of the third gear 13- & gtthe intermediate shaft gear 14- & gtthe gear of the differential mechanism- & gtthe wheels; meanwhile, the transmission direction of the power output by the second motor 10 is as follows: the second motor 10- & gtthe planet carrier 9- & gtthe pinion end of the planet wheel 12- & gtthe ring gear end of the third gear 13- & gtthe sun gear end of the third gear 13- & gtthe intermediate shaft gear 14- & gtthe gear of the differential mechanism- & gtthe wheels; when the double motor is driven by two gears: the first clutch 2 and the brake 15 are disconnected, the second clutch 7 and the third clutch 8 are combined, and the transmission direction of the power output by the first motor 3 is as follows: a first motor 3- & gt a one-way clutch 5- & gt a first gear 4- & gt a second gear 6; meanwhile, as the second clutch 7 and the third clutch 8 are combined, the power output by the first motor 3 and the power output by the second motor 10 are combined at the planet carrier 9 and the gear ring 11, and then pass 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, the gear of the differential mechanism and the wheels. When the double motor is driven by three gears: 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 of the output of the first motor 3 is as follows: the first motor 3- & gt the one-way clutch 5- & gt the first gear 4- & gt the second gear 6- & gt the third clutch 8, because the third clutch 8 is combined, 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 then pass through the pinion end of the planet wheel 12- & gt the gear ring end of the third gear 13- & gt the sun gear end of the third gear 13- & gt the intermediate shaft gear 14- & gt the differential gear- & gt the wheels.
The reverse gear condition is based on reversing the first electric machine 3 and/or the second electric machine 10 in this mode to achieve reverse.
(II) hybrid 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 a vehicle speed, an accelerator pedal opening, and a remaining power SOC.
When the residual 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 of the accelerator pedal is smaller than the preset opening x%, the vehicle is driven by an EV single motor, the power flow is consistent with an EV (ECO) mode, and two gears are shifted.
When the residual 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 of the accelerator pedal is larger than the preset opening x%, the vehicle is driven by the EV dual-motor, the power flow is consistent with an EV (SPORT) mode, and the three gears are used for gear shifting.
When the remaining power SOC is greater than the first preset power M and the vehicle speed is higher than the second preset vehicle speed V1, EV is switched to a parallel mode: at this time, the engine 1 is started by sliding the first clutch 2 through the first motor 3, after the engine 1 is started, the first clutch 2 is combined, the engine 1 works, the first motor 3 does not work, at this time, the parallel mode engine 1 and the motor are mixed to work in a three-gear mode, the power flow is consistent with the transmission path of an EV (SPORT) mode (the difference point is that the power of the engine 1 replaces the power of the first motor 3), and the three gears are shifted.
When the remaining capacity SOC is greater than the first preset capacity M% and the vehicle speed is lower than the 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 the accelerator pedal, at this time, the first clutch 2 is turned off, and the engine 1 is stopped.
When the residual electric quantity SOC is smaller than the second preset electric quantity N%, the vehicle speed is lower than the first preset vehicle speed V1, and 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, at the moment, the first motor 3 slides and rubs the first clutch 2 to start the engine 1, after the starting is successful, the first clutch 2 is combined, the engine 1 drives the first motor 3 to generate electricity, the generated electricity of the first motor 3 is used for driving the second motor 10 to work, at the moment, the power flow and each executing system state of the second motor 10 are consistent with the driving of the EV (ECO) mode single motor second gear (single motor pure electric mode second gear).
When the residual electric quantity SOC is smaller than the second preset electric quantity N and the vehicle speed is higher than the second preset vehicle speed V3, the series mode is switched to the parallel mode under any accelerator pedal opening. The engine 1 is operated, the first motor 3 is not operated, at this time, the parallel mode engine 1 and the motor are mixed to operate in three gears, and the power flow is consistent with the transmission path of the EV (SPORT) mode (first, second and third gears) (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 a hybrid AUTO mode, the second clutch 7 and the third clutch 8 are disconnected, and the brake 15 is engaged; the first motor 3 starts the engine 1 by sliding the first clutch 2; after the 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 is driven to generate electricity to drive the second motor 10 to work, and the power output by the second motor 10 is sequentially transmitted to wheels through a planet carrier 9, a pinion end of a planet wheel 12, a ring gear 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.
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 first motor 3 does not work, the power output by the engine 1 drives the first motor 3 to generate power through the first clutch 2, and then the power is sequentially 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, and then the second motor 10 is driven 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 starts the engine 1 by sliding the first clutch 2; 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 to wheels through 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 intermediate shaft gear 14 and the gears of the differential mechanism in sequence; meanwhile, the power output by the second motor 10 is transmitted to wheels through the planetary carrier 9, the pinion end of the planetary 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 gears of the differential mechanism in sequence.
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 combined, and the brake 15 is disconnected; the first motor 3 starts the engine 1 by sliding the first clutch 2; 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 position of the planet carrier 9 and the gear ring 11, and then are transmitted to wheels after being transmitted by the planetary 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 gears of the differential mechanism;
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 starts the engine 1 by sliding the first clutch 2; 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; thereafter, the power transmitted through the third clutch 8 and the power output from the second motor 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 intermediate shaft gear 14, and the gear of the differential to the wheels.
(III) Power Generation SAVE mode
When the electric quantity is low, the electric energy can be forcedly charged according to the requirement of a driver, a 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 can simultaneously generate power to rapidly charge a battery or supply power to an external power source of 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 systems, 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 electric, charging and the like are simultaneously satisfied.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

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;
-controlling the brake (15) by controlling the first clutch (2) to the third clutch (8), the engine (1), the first electric machine (3) and the second electric machine (10), bringing the hybrid vehicle drive system into:
An ECO first gear or second gear driving state, a SPORT first gear, second gear or third gear driving state under the pure electric EV mode;
A first gear or a second gear driving state of ECO in a hybrid AUTO mode, a first gear, a second gear or a third gear driving state of SPORT, a series single gear hybrid driving state, a parallel first gear, a second gear or a third gear hybrid driving state; or (b)
And a dual-motor hybrid power generation state in a power generation SAVE mode.
2. The system of claim 1, wherein the first transmission comprises:
A first gear (4) connected to an outer rotor of the one-way clutch (5);
And the second gear (6) is meshed with the first gear (4), and the second gear (6) is respectively connected with the driving end of the second clutch (7) and the driving end of the third clutch (8).
3. The system of claim 2, wherein the second transmission mechanism comprises:
A ring gear (11) connected to the driven end of the second clutch (7);
-a planet carrier (9) connecting the driven end of the third clutch (8) and the second electric machine (10);
A planetary wheel (12) fixedly mounted on the planetary carrier (9); the large 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 meshed with the pinion end of the planet wheel (12);
A countershaft gear (14) that meshes with a sun gear end of the third gear (13), the countershaft gear (14) meshing with a gear of the differential;
a sun gear (16), the pinion end of the planet gear (12) also being in mesh with the sun gear (16); the sun gear (16) is connected to the drive end of the brake (15).
4. The system of claim 3, wherein the system further comprises a controller configured to control the controller,
When the driving system of the hybrid electric vehicle enters an ECO first gear driving state under a pure electric EV mode or enters an ECO first gear driving state under 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 both combined, the brake (15) is disconnected, and the power output by the second motor (10) is sequentially transmitted through a planet carrier (9), a pinion end of a planet wheel (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 and then is output to wheels; meanwhile, the power output by the second motor (10) is transmitted to wheels sequentially through 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 countershaft gear (14) and a gear of a differential mechanism;
When the driving system of the hybrid electric vehicle enters an ECO second gear driving state under the pure electric EV mode or enters an ECO second gear driving state under the hybrid AUTO mode, the engine (1) is stopped, 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 sequentially transmitted to wheels through the pinion end of the planet carrier (9), the pinion end of the planet wheel (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.
5. The system of claim 3, wherein the system further comprises a controller configured to control the controller,
When the hybrid vehicle driving system enters a SPORT first gear driving state under a pure electric EV mode or enters a SPORT first gear driving state under a hybrid AUTO mode, the engine (1) is stopped, the first motor (3) and the second motor (10) work, the second clutch (7) is combined, the first clutch (2) and the third clutch (8) are both disconnected, the brake (15) is combined, and the power output by the first motor (3) is sequentially transmitted to wheels through 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 wheel (12), the small gear end of the planet wheel (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 gears of the differential mechanism; meanwhile, the power output by the second motor (10) is sequentially transmitted through the planet carrier (9), the pinion end of the planet wheel (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 gears of the differential mechanism and then output to the wheels;
When the hybrid electric vehicle driving system enters a SPORT second gear driving state under a pure electric EV mode or enters a SPORT second gear driving state under a hybrid AUTO mode, the engine (1) is stopped, 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 combined at the planet carrier (9) and the gear ring (11), and then are sequentially transmitted to wheels through a planet wheel (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 gears of the differential mechanism;
When the hybrid electric vehicle driving system enters a SPORT three-gear driving state under a pure electric EV mode or enters a SPORT three-gear driving state under 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 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); the power transmitted through the third clutch (8) and the power output by the second motor (10) are converged at the planet carrier (9), and then are transmitted to wheels through the pinion end of the planet wheel (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 gears of the differential mechanism in sequence.
6. The system of claim 3, wherein the system further comprises a controller configured to control the controller,
When the hybrid vehicle driving system enters a serial 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) starts the engine (1) by sliding the first clutch (2); after the engine (1) is successfully started, the first clutch (2) is combined, the engine (1) drives the first motor (3) to generate power, the first motor (3) generates power to drive the second motor (10) to work, and the power output by the second motor (10) is sequentially transmitted to wheels through a planet carrier (9), a pinion end of a planet wheel (12), a ring gear end of a third gear (13), a sun gear end of the third gear (13), a countershaft gear (14) and a gear of a differential mechanism;
When the hybrid vehicle driving system enters a double-motor hybrid power generation state under a power generation SAVE mode, the first clutch (2) is combined with the third clutch (8), the second clutch (7) is disconnected, the brake (15) is disconnected, power output by the engine (1) drives the first motor (3) to generate power through the first clutch (2), and then the power is sequentially 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), so that the second motor (10) is driven to generate power.
7. The system of claim 3, wherein the system further comprises a controller configured to control the controller,
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) starts the engine (1) by sliding the first clutch (2); after the engine (1) is successfully started, the first motor (3) does not work any more; the power output by the engine (1) is transmitted to wheels sequentially through 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 intermediate shaft gear (14) and the gears of the differential mechanism; meanwhile, the power output by the second motor (10) is sequentially transmitted through the planet carrier (9), the pinion end of the planet wheel (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 gears of the differential mechanism and then output to the 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 combined, and the brake (15) is disconnected; the first motor (3) starts the engine (1) by sliding the first clutch (2); after the engine (1) is successfully started, 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 position of the planet carrier (9) and the gear ring (11), and then are transmitted to wheels after being sequentially transmitted through the planet wheel (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 gears of the differential mechanism;
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) is combined with the third clutch (8), and the brake (15) is combined; the first motor (3) starts the engine (1) by sliding the first clutch (2); after the engine (1) is successfully started, 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); the power transmitted through the third clutch (8) and the power output by the second motor (10) are converged at the planet carrier (9), and then are transmitted to wheels through the pinion end of the planet wheel (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 gears of the differential mechanism in sequence.
8. The system of claim 1, wherein the hybrid vehicle drive system is in a hybrid AUTO mode,
If the residual electric quantity SOC of the hybrid power vehicle is larger than the first preset electric quantity M%, the vehicle speed is lower than the first preset vehicle speed V1, and the accelerator pedal opening is smaller than the first preset opening, the driving system of the hybrid power vehicle enters an ECO first gear or second gear driving state;
If the residual electric quantity SOC of the hybrid power vehicle is larger than the first preset electric quantity M, the vehicle speed is lower than the first preset vehicle speed V1, and the accelerator pedal opening is larger than the first preset opening, the hybrid power vehicle driving system enters a SPORT first gear, second gear or third gear driving state;
If the residual electric quantity SOC of the hybrid power vehicle is larger than the first preset electric quantity M and the vehicle speed is higher than the second preset vehicle speed V2, the hybrid power vehicle driving system enters a first-gear, second-gear or third-gear parallel hybrid driving state;
if the residual electric quantity SOC of the hybrid power vehicle is smaller than the second preset electric quantity N and the vehicle speed is lower than the first preset vehicle speed V1, the hybrid power vehicle driving system enters a serial 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, wherein the system further comprises a controller configured to control the controller,
When the hybrid vehicle driving system is in a first-gear, second-gear or third-gear driving state of the SPORT or a first-gear or second-gear driving state of the ECO in the hybrid AUTO mode, if the residual electric quantity SOC of the hybrid vehicle is larger than the first preset electric quantity M and the vehicle speed is higher than the second preset vehicle speed V2, the hybrid vehicle driving system is switched into a parallel first-gear, second-gear or third-gear hybrid driving state;
when the hybrid vehicle driving system is in a parallel first-gear, second-gear or third-gear hybrid driving state in a hybrid AUTO mode, if the residual electric quantity SOC of the hybrid vehicle is larger than the first preset electric quantity M and the vehicle speed is lower than a third preset vehicle speed V3, the hybrid vehicle driving system is switched into a SPORT first-gear, second-gear or third-gear driving state or an ECO first-gear or second-gear driving state;
When the hybrid vehicle driving system is in a serial single-gear hybrid driving state in a hybrid AUTO mode, if the residual electric quantity SOC of the hybrid vehicle is smaller than the second preset electric quantity N and the vehicle speed is higher than the second preset vehicle speed V2, the hybrid vehicle driving system is switched into a parallel first-gear, second-gear or third-gear hybrid driving state.
10. The system according to claim 1, wherein the hybrid vehicle drive system enters the electric-only EV mode, the hybrid AUTO mode, based on a user instruction, and the hybrid vehicle drive system selects whether to enter the power generation SAVE mode based on a remaining amount of the vehicle.
11. A hybrid vehicle comprising the hybrid vehicle drive system according to 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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