WO2019227815A1 - 混合动力驱动系统 - Google Patents

混合动力驱动系统 Download PDF

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Publication number
WO2019227815A1
WO2019227815A1 PCT/CN2018/109607 CN2018109607W WO2019227815A1 WO 2019227815 A1 WO2019227815 A1 WO 2019227815A1 CN 2018109607 W CN2018109607 W CN 2018109607W WO 2019227815 A1 WO2019227815 A1 WO 2019227815A1
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WO
WIPO (PCT)
Prior art keywords
clutch
gear
motor
drive system
engine
Prior art date
Application number
PCT/CN2018/109607
Other languages
English (en)
French (fr)
Inventor
杨勇
赵江灵
尚阳
董泽庆
祖国强
苏倩汝
Original Assignee
广州汽车集团股份有限公司
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Filing date
Publication date
Application filed by 广州汽车集团股份有限公司 filed Critical 广州汽车集团股份有限公司
Priority to US16/337,940 priority Critical patent/US11198355B2/en
Publication of WO2019227815A1 publication Critical patent/WO2019227815A1/zh

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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
    • B60K6/38—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
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • 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
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B60K6/442—Series-parallel switching type
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B60K6/445—Differential gearing distribution type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • 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
    • B60K2006/381—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 characterized by driveline brakes
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    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
    • 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

Definitions

  • the present invention relates to the field of new energy technologies, and in particular, to a hybrid drive system.
  • stepped transmissions there are two types of transmissions on the market: stepped transmissions and continuously variable transmissions.
  • the stepped transmission is subdivided into manual and automatic. Most of them provide a limited number of discrete output and input speed ratios through different meshing arrangements of the gear train or planetary gear train. The adjustment of the drive wheel speed between two adjacent speed ratios is Rely on the speed change of the internal combustion engine to achieve.
  • Continuously variable transmission whether it is mechanical, hydraulic or electromechanical, can provide an unlimited number of continuously selectable speed ratios within a certain speed range. In theory, the speed change of the driving wheels can be completely accomplished by the transmission. It works as fast as possible in the best speed range.
  • the continuously variable transmission has many advantages such as smooth speed regulation and full use of the maximum power of the internal combustion engine. Therefore, the continuously variable transmission has been the subject of research by engineers from various countries for many years.
  • the internal combustion engine, generator, motor, shaft system, and drive wheels form a series power chain, and the powertrain structure is extremely simple.
  • the combination of generator and motor can be regarded as a transmission in the traditional sense.
  • the transmission can also be used as an energy adjustment device to complete independent adjustments of speed and torque.
  • a parallel hybrid system has two parallel independent power chains.
  • One consists of a traditional mechanical transmission, and the other consists of a motor and a battery system.
  • the mechanical transmission is responsible for adjusting the speed, and the motor and battery system are adjusting the power or torque.
  • the mechanical transmission In order to fully realize the potential of the entire system, the mechanical transmission also needs to adopt a continuously variable transmission method.
  • an embodiment of the present invention provides a hybrid drive system, which has a simple structure, multiple working modes, and good platformization.
  • An embodiment of the present invention provides a hybrid drive system including an engine, a planetary gear device, a first motor, a clutch gear, a braking device, a first clutch, a second clutch, an intermediate shaft, and a second motor, wherein:
  • the engine and the first electric machine are connected through the planetary gear device, and the planetary gear device includes a first rotation element, a second rotation element, and a third rotation element, and the first rotation element and the second rotation
  • the element and the third rotation element are each one of a sun gear, a planet carrier, and a ring gear.
  • the engine has an engine output shaft, the first motor has a first motor output shaft, and the first rotation element Connected to the first motor output shaft, and the second rotating element is connected to the engine output shaft;
  • the clutch gear is loosely sleeved on the first motor output shaft, the clutch gear is connected to the first motor output shaft through the first clutch, and the first clutch is used to connect the clutch gear with all
  • the first motor output shaft is engaged or disengaged, the clutch gear is connected to the third rotation element through the second clutch, and the second clutch is used to engage the clutch gear with the third rotation element Or disconnect, the clutch gear is connected to the intermediate shaft and outputs power to the wheel end through the intermediate shaft;
  • the braking device is used for braking or unlocking the third rotating element
  • the second motor is connected to the intermediate shaft and outputs power to a wheel end through the intermediate shaft.
  • the first rotating element is a sun gear
  • the second rotating element is a planet carrier
  • the third rotating element is a ring gear
  • the first clutch and the second clutch are integrated in a same housing.
  • the first rotating element is a sun gear
  • the second rotating element is a ring gear
  • the third rotating element is a planet carrier
  • the first clutch and the second clutch are integrated in a same housing.
  • the clutch gear is disposed between the first motor and the planetary gear device.
  • the driving plate of the first clutch is fixedly connected to the output shaft of the first motor
  • the clutch gear is fixedly connected to the driven plate of the first clutch
  • One rotating disk is fixedly connected to the driven disk of the first clutch
  • the other rotating disk of the second clutch is fixedly connected to the third rotating element.
  • a first gear and a second gear are fixed on the intermediate shaft, the first gear and the clutch gear mesh with each other;
  • the second motor has a second motor output shaft, and the first A third gear is fixed to the two motor output shafts, and the third gear and the first gear mesh with each other;
  • the hybrid drive system further includes a differential, and the differential is provided with a differential gear, The second gear and the differential gear mesh with each other.
  • the hybrid drive system has a one-stage pure electric mode, a two-stage pure electric mode, an extended range mode, a one-stage engine direct drive mode, a two-stage engine direct drive mode, a one-stage hybrid mode, Two-stage hybrid mode, three-stage hybrid mode and brake power generation mode.
  • the first electric machine, the clutch gear, the planetary gear device, and the engine are disposed coaxially.
  • the braking device is a brake or a one-way clutch.
  • the hybrid drive system provided by the embodiment of the present invention has a simple overall structure, and has a single-motor pure electric mode, a dual-motor pure electric mode, an extended range mode, two engine direct drive modes, three hybrid modes, and brake power generation modes. It can automatically switch between different modes according to the SOC value of the battery and the speed of the vehicle. It has strong flexibility. When the operating mode is switched, the second motor participates in driving and there is no interruption in power. In addition, the engine and the first motor are connected through a planetary gear device, the speed ratio is adjustable, and the range of the speed ratio is large, which can effectively reduce the volume of the first motor.
  • the hybrid drive system can cover HEV (Hybrid Electric Vehicle (that is, hybrid vehicle) and PHEV (Plug-in Hybrid Electric Vehicle) that are well-platformed.
  • FIG. 1 is a schematic structural diagram of a hybrid drive system according to a first embodiment of the present invention.
  • FIG. 2 is a schematic diagram of power transmission of the hybrid drive system of FIG. 1 in a one-stage pure electric mode.
  • FIG. 3 is a schematic diagram of power transmission of the hybrid drive system of FIG. 1 in a two-stage pure electric mode.
  • FIG. 4 is a schematic diagram of power transmission of the hybrid drive system of FIG. 1 in an extended range mode.
  • FIG. 5 is a schematic diagram of power transmission of the hybrid drive system of FIG. 1 in a one-stage engine direct drive mode.
  • FIG. 6 is a schematic diagram of power transmission of the hybrid drive system of FIG. 1 in a two-engine direct drive mode.
  • FIG. 7 is a schematic diagram of power transmission of the hybrid drive system of FIG. 1 in a first-stage hybrid mode.
  • FIG. 8 is a schematic diagram of power transmission of the hybrid drive system of FIG. 1 in a two-stage hybrid mode.
  • FIG. 9 is a schematic diagram of power transmission of the hybrid drive system of FIG. 1 in a three-stage hybrid mode.
  • FIG. 10 is a schematic diagram of power transmission of the hybrid drive system of FIG. 1 in a braking power generation mode.
  • FIG. 11 is a schematic structural diagram of a hybrid drive system according to a second embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a hybrid drive system according to a third embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of a hybrid drive system according to a fourth embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a hybrid drive system according to a first embodiment of the present invention.
  • the hybrid drive system 10 includes an engine 11, a planetary gear device 12, a first motor 13, a clutch gear 14, a braking device 15, a first clutch 161, a second clutch 162, an intermediate shaft 17, and a second The motor 18, the differential 19, and a power battery (not shown).
  • the engine 11 includes an engine output shaft 112.
  • the engine 11 is, for example, a gasoline engine or a diesel engine.
  • the first motor 13 has a first motor output shaft 132.
  • the first motor 13 is disposed coaxially with the engine 11, that is, the first motor output shaft 132 of the first motor 13 and the engine output shaft 112 of the engine 11 are on the same axis.
  • the first motor 13 is an integrated drive and power generation machine.
  • the engine 11 and the first electric machine 13 are connected via a planetary gear device 12.
  • the planetary gear device 12 includes a first rotation element, a second rotation element, and a third rotation element.
  • the first rotation element is connected to the first motor output shaft 132 of the first motor 13, and the second rotation element is connected to the engine output shaft of the engine 11. 112 connections.
  • Each of the first rotating element, the second rotating element, and the third rotating element is one of a sun gear 122, a planet carrier 124, and a ring gear 123.
  • the first rotating element 122 is a sun gear 122
  • the second rotating element is a planet carrier 124
  • the third rotating element is a ring gear 123. That is, in this embodiment, the sun gear 122 is connected to the first motor output shaft 132, and the planet carrier 124 is connected to the engine output shaft 112.
  • the planet carrier 124 is provided with a planet gear 125, and the planet gear 125 is connected to the planet carrier 124 through a rolling bearing or a sliding bearing.
  • the sun gear 122 is disposed in the ring gear 123
  • the planetary gear 125 is disposed between the sun gear 122 and the ring gear 123
  • the planetary gear 125 meshes with the sun gear 122 and the ring gear 123, respectively.
  • the clutch gear 14 is disposed coaxially with the first electric machine 13, the planetary gear device 12, and the engine 11.
  • the clutch gear 14 is provided between the first electric machine 13 and the planetary gear device 12.
  • the clutch gear 14 is loosely sleeved on the first motor output shaft 132, that is, the first motor output shaft 132 and the clutch gear 14 are not affected by each other when they are rotated.
  • the clutch gear 14 is connected to the first motor output shaft 132 through a first clutch 161.
  • the first clutch 161 is used to engage or disconnect the clutch gear 14 and the first motor output shaft 132.
  • the driving plate of the first clutch 161 is fixedly connected to the first motor output shaft 132, and the clutch gear 14 is fixedly connected to the driven plate of the first clutch 161.
  • the first clutch 161 When the first clutch 161 is operated (ie, the driven disk is engaged with the driving disk), the first clutch 161 fixedly connects the clutch gear 14 with the first motor output shaft 132. At this time, the clutch gear 14 and the first motor output shaft 132 rotate synchronously.
  • the clutch gear 14 is sleeved on the first motor output shaft 132. At this time, the clutch gear 14 can rotate independently of the first motor output shaft 132. .
  • the clutch gear 14 is connected to the third rotation element through a second clutch 162, and the second clutch 162 is used to engage or disconnect the clutch gear 14 and the third rotation element.
  • One of the rotating disks of the second clutch 162 is fixedly connected to the driven disk of the first clutch 161, and the other rotating disk of the second clutch 162 is fixedly connected to the third rotating element.
  • the third rotating element is the ring gear 123, that is, the second clutch 162 is used to engage or disconnect the clutch gear 14 and the ring gear 123.
  • the second clutch 162 When the second clutch 162 is engaged (that is, the two rotating disks are engaged), the second clutch 162 fixedly connects the clutch gear 14 and the ring gear 123.
  • the clutch gear 14 and the ring gear 123 rotate synchronously; when the second clutch 162 is not operated When the two rotating disks are separated, the clutch gear 14 and the ring gear 123 are separated from each other.
  • the braking device 15 is used to brake or unlock the third rotation element (in this embodiment, the ring gear 123).
  • the braking device 15 is, for example, a brake or a one-way clutch. In this embodiment, the braking device 15 is used to brake or unlock the ring gear 123.
  • the braking device 15 brakes the ring gear 123, and the ring gear 123 cannot be rotated at this time;
  • the brake device 15 unlocks the ring gear 123, and at this time, the ring gear 123 can rotate.
  • the clutch gear 14 is connected to the intermediate shaft 17 and outputs power to the wheel end of the vehicle through the intermediate shaft 17.
  • a first gear 172 and a second gear 173 are fixed to the intermediate shaft 17.
  • the first gear 172 and the second gear 173 are spaced from each other.
  • the first gear 172 and the clutch gear 14 mesh with each other.
  • the second motor 18 is disposed in parallel with the first motor 13.
  • the second motor 18 is connected to the intermediate shaft 17 and outputs power to the wheel end of the vehicle through the intermediate shaft 17.
  • the second motor 18 has a second motor output shaft 182, and a third gear 183 is fixed on the second motor output shaft 182.
  • the third gear 183 and the first gear 172 mesh with each other.
  • the second motor 18 is an integrated drive and power generation machine.
  • the differential 19 is provided with a differential gear 192, and the differential gear 192 and the second gear 173 mesh with each other.
  • the differential 19 is used to adjust the difference in the rotational speed of the left and right wheels. When the car is turning or driving on uneven roads, the left and right wheels roll at different speeds.
  • the power battery is electrically connected to the first motor 13 and the second motor 18, respectively.
  • the power battery provides electric power for driving the first motor 13 and the second motor 18, and at the same time, the power generated by the first motor 13 and the second motor 18 when generating power can be stored in the power battery.
  • the engine 11 drives the first motor 13 through the planet carrier 124 and the sun wheel 122 to generate electric energy, and the electric energy can be stored in a power battery.
  • the speeder 19 the differential gear 192, the second gear 173, the first gear 172, and the third gear 183 are transmitted to the second electric motor 18, which drives the second electric motor 18 to generate electric energy, and the electric energy can be stored in the power battery.
  • the hybrid drive system 10 of this embodiment has a one-stage pure electric mode, a two-stage pure electric mode, an extended range mode, a one-stage engine direct drive mode, a two-stage engine direct drive mode, a one-stage hybrid mode, and a two-stage hybrid Mode, three-stage hybrid mode and brake power generation mode.
  • FIG. 2 is a schematic diagram of power transmission of the hybrid drive system of FIG. 1 in a one-stage pure electric mode.
  • the power transmission direction is shown by the arrow direction in the figure.
  • the braking device 15 and the first clutch 161 are shown.
  • the second clutch 162, the engine 11 and the first electric machine 13 are not operated, and the second electric machine 18 is driven.
  • the power transmission has a path, that is, the second motor 18 is transmitted through the third gear 183 to the first gear 172, the intermediate shaft 17, the second gear 173, the differential gear 192, the differential 19, and finally to the wheel. end.
  • the hybrid drive system 10 can be driven in a first-grade pure electric mode.
  • FIG. 3 is a schematic diagram of power transmission of the hybrid drive system of FIG. 1 in a two-stage pure electric mode.
  • the power transmission direction is shown by an arrow in the figure.
  • the braking device 15 and the second clutch 162 Neither the engine 11 nor the engine 11 operates, the first clutch 161 operates, the clutch gear 14 is fixedly connected to the first motor output shaft 132, and both the first motor 13 and the second motor 18 are driven.
  • power transmission has two paths, one of which is transmitted by the first motor 13 through the clutch gear 14 to the first gear 172, the intermediate shaft 17, the second gear 173, the differential gear 192, and the differential 19, and finally To the wheel end; the second path is transmitted by the second motor 18 to the first gear 172, the intermediate shaft 17, the second gear 173, the differential gear 192, and the differential 19 through the third gear 183, and finally to the wheel end.
  • the hybrid drive system 10 can be driven in a two-stage pure electric mode.
  • FIG. 4 is a schematic diagram of power transmission of the hybrid drive system of FIG. 1 in the extended range mode.
  • the power transmission direction is shown by the arrow direction in the figure.
  • neither the first clutch 161 nor the second clutch 162 is operated.
  • the brake device 15 works to brake the ring gear 123, the engine 11 drives the planet carrier 124 to rotate, transmits power to the sun gear 122, and then to the first motor 13, and the engine 11 drives the first motor 13 to generate electricity.
  • the electric energy generated by 13 may be stored in a power battery or provided to a second motor 18, which is driven by the second motor 18.
  • the power transmission has a path, which is transmitted by the second motor 18 through the third gear 183 to the first gear 172, the intermediate shaft 17, the second gear 173, the differential gear 192, the differential 19, and finally to the wheel end .
  • FIG. 5 is a schematic diagram of power transmission of the hybrid drive system of FIG. 1 in a one-stage engine direct drive mode.
  • the power transmission direction is shown by the arrow direction in the figure.
  • the braking device 15 and the first Neither the motor 13 nor the second motor 18 works, the first clutch 161 works, and the clutch gear 14 is fixedly connected to the first motor output shaft 132, while the second clutch 162 works, and the clutch gear 14 and the ring gear 123 are fixedly connected.
  • the engine 11 is driven.
  • the speed ratio of the entire planetary gear device 12 is 1, the rotation speeds of the sun gear 122, the planet carrier 124, and the ring gear 123 are the same.
  • the entire planetary gear device 12 is driven by the engine 11, and the power is driven by the clutch gear. 14 is transmitted to the first gear 172, the intermediate shaft 17, the second gear 173, the differential gear 192, and the differential 19, and finally to the wheel end.
  • the hybrid drive system 10 can be driven in a first-engine direct drive mode.
  • FIG. 6 is a schematic diagram of power transmission of the hybrid drive system of FIG. 1 in a two-engine direct drive mode.
  • the power transmission direction is shown by an arrow in the figure.
  • the second clutch 162 In the two-engine direct drive mode, the second clutch 162, the first Neither the motor 13 nor the second motor 18 operates, the first clutch 161 operates, the clutch gear 14 is fixedly connected to the first motor output shaft 132, the braking device 15 operates to brake the ring gear 123, and is driven by the engine 11.
  • the power transmission has a path
  • the engine 11 drives the planet carrier 124 to rotate, and transmits power to the sun gear 122, and is transmitted to the first gear 172, the intermediate shaft 17, the second gear 173, and the differential gear by the clutch gear 14 192, differential 19, and finally to the wheel end.
  • the hybrid drive system 10 may be driven in a two-engine direct drive mode.
  • FIG. 7 is a schematic diagram of power transmission of the hybrid drive system of FIG. 1 in the first-stage hybrid mode.
  • the power transmission direction is shown by the arrow direction in the figure.
  • the braking device 15 and the first clutch 161 Nothing works
  • the second clutch 162 works
  • the clutch gear 14 and the ring gear 123 are fixedly connected
  • the engine 11 drives the planet carrier 124 to rotate
  • the first motor 13 drives the sun gear 122 to rotate
  • the engine 11 and the first motor 13 pass through the planetary gear device 12 is steplessly coupled and driven by the engine 11, the first electric machine 13, and the second electric machine 18.
  • the power transmission has two paths, of which path one, the power of the engine 11 is transmitted through the planet carrier 124, the power of the first motor 13 is transmitted through the sun gear 122, and the power of the engine 11 and the first motor 13 is transmitted through the planetary gears.
  • the device 12 is steplessly coupled, output through the ring gear 123, and is transmitted by the clutch gear 143 to the first gear 172, the intermediate shaft 17, the second gear 173, the differential gear 192, the differential 19, and finally to the wheel end; the path Second, it is transmitted from the second motor 18 to the first gear 172, the intermediate shaft 17, the second gear 173, the differential gear 192, and the differential 19 through the third gear 183, and finally to the wheel end.
  • the hybrid drive system 10 when the hybrid drive system 10 is driven in the first-stage hybrid mode, the system is in ECVT (Electronic controlled variable transmission) stepless speed regulation mode, the operating point of the engine 11 can be adjusted by the first motor 13 and the second motor 18, so that the engine 11 always runs in the high-efficiency zone, which can ensure system power and economy.
  • the hybrid drive system 10 may be driven in a first-stage hybrid mode.
  • FIG. 8 is a schematic diagram of power transmission of the hybrid drive system of FIG. 1 in a two-stage hybrid mode.
  • the power transmission direction is shown by an arrow in the figure.
  • the braking device 15 does not work.
  • the clutch 161 works, and the clutch gear 14 is fixedly connected to the first motor output shaft 132, while the second clutch 162 works, and the clutch gear 14 and the ring gear 123 are fixedly connected.
  • the engine 11, the first motor 13, and the second motor 18 are all connected. drive.
  • the speed ratio of the entire planetary gear device 12 is 1, the rotation speeds of the sun gear 122, the planet carrier 124, and the ring gear 123 are the same.
  • path 1 the power of the engine 11 is transmitted through the planet carrier 124.
  • the power of the first motor 13 is transmitted through the sun gear 122, and the power is transmitted by the clutch gear 14 to the first gear 172, the intermediate shaft 17, the second gear 173, the differential gear 192, and the differential 19, and finally to the wheel end
  • Path two is transmitted by the second motor 18 to the first gear 172, the intermediate shaft 17, the second gear 173, the differential gear 192, and the differential 19 through the third gear 183, and finally to the wheel end.
  • the hybrid drive system 10 can be driven in a two-stage hybrid mode.
  • FIG. 9 is a schematic diagram of the power transmission of the hybrid drive system of FIG. 1 in a three-stage hybrid mode.
  • the power transmission direction is shown by the arrow direction in the figure.
  • the second clutch 162 is not operated.
  • the clutch 161 works, and the clutch gear 14 is fixedly connected to the first motor output shaft 132.
  • the braking device 15 works to brake the ring gear 123.
  • the engine 11, the first motor 13, and the second motor 18 are all driven.
  • the power transmission has two paths. In the first path, the engine 11 drives the planet carrier 124 to rotate and transmits power to the sun gear 122.
  • the first motor 13 also transmits power to the sun gear 122.
  • the clutch Gear 14 is transmitted to the first gear 172, the intermediate shaft 17, the second gear 173, the differential gear 192, the differential 19, and finally to the wheel end; the second path is transmitted from the second motor 18 to the first through the third gear 183 A gear 172, an intermediate shaft 17, a second gear 173, a differential gear 192, and a differential 19 finally reach the wheel end.
  • the hybrid drive system 10 can be driven in a three-stage hybrid mode.
  • FIG. 10 is a schematic diagram of power transmission of the hybrid drive system of FIG. 1 in a brake power generation mode.
  • the power transmission direction is shown by an arrow in the figure.
  • the brake device 15, the first clutch 161, the first The second clutch 162, the engine 11 and the first electric motor 13 are all inoperative.
  • the power of the vehicle during braking is transmitted from the wheel end to the second electric motor 18 for power generation, and the power is transmitted from the wheel end to the differential 19 and the differential gear.
  • 192, the second gear 173, the first gear 172, and the third gear 183 are transmitted to the second motor 18, which drives the second motor 18 to generate electricity.
  • the hybrid drive system 10 of this embodiment has a one-stage pure electric mode, a two-stage pure electric mode, an extended range mode, a one-stage engine direct drive mode, a two-stage engine direct drive mode, a one-stage hybrid mode, and a two-stage hybrid
  • the mode, three-stage hybrid mode and brake power generation mode can automatically switch between different modes according to the SOC value (State of Charge, remaining power) of the power battery and the vehicle speed requirements. For example, determine the magnitude relationship between the SOC value of the power battery and the first threshold, or determine the magnitude relationship between the SOC value of the power battery and the first threshold, and the magnitude relationship between the vehicle speed and the second threshold; switch the hybrid drive system based on the judgment result 10 working modes.
  • SOC value State of Charge, remaining power
  • the first threshold value is used to determine the level of SOC of the power battery
  • the second threshold value is used to determine the level of the vehicle speed.
  • This embodiment does not limit the range of the values of the first threshold value and the second threshold value.
  • the control strategy can be set freely. Under different control strategies, the values of the first threshold and the second threshold are different. After the first threshold and the second threshold are set, an automatic judgment is made and the various modes are automatically switched according to the judgment result.
  • the above working mode is embodied in the form of a table as follows:
  • FIG. 11 is a schematic structural diagram of a hybrid drive system according to a second embodiment of the present invention. As shown in FIG. 11, the structure of the hybrid drive system 10 of this embodiment is substantially the same as that of the first embodiment described above, and the difference is that the installation positions of the first clutch 161 and the second clutch 162 are different.
  • the second clutch 162 is disposed in the first clutch 161, so that the first clutch 161 and the second clutch 162 are integrated in the same housing, and the first clutch 161 and the second clutch 162 are along
  • the first motor output shaft 132 is coaxially arranged, so that the volume occupied by the first clutch 161 and the second clutch 162 can be greatly reduced, leaving space for the arrangement of other components of the engine.
  • FIG. 12 is a schematic structural diagram of a hybrid drive system according to a third embodiment of the present invention.
  • the structure of the hybrid drive system 10 of this embodiment is substantially the same as that of the first embodiment, except that the connection relationship between the engine 11 and the planetary gear device 12 and the connection between the clutch gear 14 and the planetary gear device 12 are different. The relationship is different.
  • the first rotating element connected to the first motor output shaft 132 is a sun gear 122
  • the second rotating element connected to the engine output shaft 112 is a ring gear 123
  • the third rotating element is a planet carrier 124.
  • the sun gear 122 is connected to the first motor output shaft 132
  • the ring gear 123 is connected to the engine output shaft 112
  • the planet carrier 124 is connected to the clutch gear 14 through the second clutch 162.
  • the clutch gear 14 is connected to the planet carrier 124 through a second clutch 162, and the second clutch 162 is used to engage or disconnect the clutch gear 14 and the planet carrier 124.
  • the second clutch 162 When the second clutch 162 is working, the second clutch 162 fixedly connects the clutch gear 14 with the planet carrier 124, and the clutch gear 14 and the planet carrier 124 rotate synchronously; when the second clutch 162 is not operating, the clutch gear 14 and the planet carrier 124 are separated from each other.
  • the braking device 15 is used to brake or unlock the planet carrier 124.
  • the braking device 15 brakes the planet carrier 124, and at this time, the planet carrier 124 cannot rotate;
  • the braking device 15 unlocks the planet carrier 124, and at this time, the planet carrier 124 can rotate.
  • the hybrid drive system 10 of this embodiment has a one-stage pure electric mode, a two-stage pure electric mode, an extended range mode, a one-stage engine direct drive mode, a two-stage engine direct drive mode, a one-stage hybrid mode, and a two-stage hybrid Mode, three-stage hybrid mode and brake power generation mode.
  • FIG. 13 is a schematic structural diagram of a hybrid drive system according to a fourth embodiment of the present invention. As shown in FIG. 13, the structure of the hybrid drive system 10 of this embodiment is substantially the same as that of the third embodiment described above, except that the first clutch 161 and the second clutch 162 are installed at different positions.
  • the second clutch 162 is disposed in the first clutch 161, so that the first clutch 161 and the second clutch 162 are integrated in the same housing, and the first clutch 161 and the second clutch 162 are along
  • the first motor output shaft 132 is coaxially arranged, so that the volume occupied by the first clutch 161 and the second clutch 162 can be greatly reduced, leaving space for the arrangement of other components of the engine.
  • the hybrid drive system provided by the embodiment of the present invention has a simple overall structure, and has a single-motor pure electric mode, a dual-motor pure electric mode, an extended range mode, two engine direct drive modes, three hybrid modes, and brake power generation modes. It can automatically switch between different modes according to the SOC value of the battery and the speed of the vehicle. It has strong flexibility. When the operating mode is switched, the second motor participates in driving and there is no interruption in power. In addition, the engine and the first motor are connected through a planetary gear device, the speed ratio is adjustable, and the range of the speed ratio is large, which can effectively reduce the volume of the first motor.
  • the hybrid drive system can cover HEV (Hybrid Electric Vehicle (that is, hybrid vehicle) and PHEV (Plug-in Hybrid Electric Vehicle) that are well-platformed.
  • the hybrid drive system provided by the embodiment of the present invention has a simple overall structure, and has a single-motor pure electric mode, a dual-motor pure electric mode, an extended range mode, two engine direct drive modes, three hybrid modes, and brake power generation modes. It can automatically switch between different modes according to the SOC value of the battery and the speed of the vehicle. It has strong flexibility. When the operating mode is switched, the second motor participates in driving and there is no interruption in power. In addition, the engine and the first motor are connected through a planetary gear device, the speed ratio is adjustable, and the range of the speed ratio is large, which can effectively reduce the volume of the first motor.
  • the hybrid drive system can cover HEV (Hybrid Electric Vehicle (that is, hybrid vehicle) and PHEV (Plug-in Hybrid Electric Vehicle) that are well-platformed.

Abstract

一种混合动力驱动系统，包括发动机（11）、行星齿轮装置（12）、第一电机（13）、离合器齿轮（14）、制动装置（13）、第一离合器（161）、第二离合器（162）、中间轴（17）和第二电机（18），发动机（11）与第一电机（13）通过行星齿轮装置（12）连接，行星齿轮装置（12）包括第一旋转元件、第二旋转元件和第三旋转元件，第一旋转元件与第一电机（13）连接，第二旋转元件与发动机（11）连接；离合器齿轮（14）空套在第一电机输出轴（132）上，离合器齿轮（14）通过第一离合器（161）与第一电机输出轴（132）连接，第一离合器（161）用于将离合器齿轮（14）与第一电机输出轴（132）接合或断开，离合器齿轮（14）通过第二离合器（162）与第三旋转元件连接，第二离合器（162）用于将离合器齿轮（14）与第三旋转元件接合或断开，离合器齿轮（14）与中间轴（17）连接；制动装置（13）用于制动或解锁第三旋转元件；第二电机（18）与中间轴（17）连接。

Description

混合动力驱动系统 技术领域
本发明涉及新能源技术领域，特别涉及一种混合动力驱动系统。
 背景技术
目前市场上的变速器主要有有级变速器和无级变速器两大类。有级变速器又细分为手动和自动两种，它们大多通过齿轮系或行星轮系不同的啮合排列来提供有限个离散的输出输入速比，两相邻速比之间驱动轮速度的调节则依靠内燃机的速度变化来实现。无级变速器，无论是机械式、液压式或机电式，都能在一定速度范围内提供无限个连续可选用的速比，理论上说，驱动轮的速度变化完全可通过变速器来完成，这样内燃机可以尽可能的工作在最佳速度范围内。无级变速器和有级变速器相比，具有调速平稳，能充分利用内燃机最大功率等诸多优点，因此无级变速器多年来一直是各国工程师们研究的对象。
近年来，电机混合动力技术的诞生为实现内燃机与动力轮之间动力的完全匹配开拓了新的途径。在众多的动力总成设计方案中，最具代表性的有串联混合系统和并联混合系统两种。
串联混合系统中，内燃机、发电机、电动机、轴系、驱动轮组成一条串联的动力链，动力总成结构极为简单。其中，发电机、电动机组合可视为传统意义下的变速器。当与储能器，如电池、电容等联合使用时，该变速器又可作为能量调节装置，完成对速度和扭矩的独立调节。
并联混合系统有两条并行的独立的动力链。一条由传统的机械变速器组成，另一条由电机、电池系统组成。机械变速器负责完成对速度的调节，而电机、电池系统则完成对功率或扭矩的调节。为充分发挥整个系统的潜能，机械变速器还需采用无级变速方式。
 技术问题
串联混合系统的优点在于结构简单，布局灵活，但全部动力通过发电机和电动机，因此电机的功率要求高，体积大，重量重。同时，由于能量传输过程经过两次机电、电机的转换，整个系统的效率较低。在并联混合系统中，只有部分动力通过电机系统，因此对电机的功率要求相对较低，整体系统的效率高。然而，并联混合系统需两套独立的子系统，造价高，通常只用于弱混合系统。
 技术解决方案
有鉴于此，本发明实施例提供一种混合动力驱动系统，其结构较简单，具有多种工作模式，平台化好。
本发明实施例提供一种混合动力驱动系统，包括发动机、行星齿轮装置、第一电机、离合器齿轮、制动装置、第一离合器、第二离合器、中间轴和第二电机，其中：
所述发动机与所述第一电机通过所述行星齿轮装置连接，所述行星齿轮装置包括第一旋转元件、第二旋转元件和第三旋转元件，所述第一旋转元件、所述第二旋转元件和所述第三旋转元件各自为太阳轮、行星架、齿圈三者中的一个，所述发动机具有发动机输出轴，所述第一电机具有第一电机输出轴，所述第一旋转元件与所述第一电机输出轴连接，所述第二旋转元件与所述发动机输出轴连接；
所述离合器齿轮空套在所述第一电机输出轴上，所述离合器齿轮通过所述第一离合器与所述第一电机输出轴连接，所述第一离合器用于将所述离合器齿轮与所述第一电机输出轴接合或断开，所述离合器齿轮通过所述第二离合器与所述第三旋转元件连接，所述第二离合器用于将所述离合器齿轮与所述第三旋转元件接合或断开，所述离合器齿轮与所述中间轴连接并通过所述中间轴输出动力至轮端；
所述制动装置用于制动或解锁所述第三旋转元件；
所述第二电机与所述中间轴连接并通过所述中间轴输出动力至轮端。
在其中一实施例中，所述第一旋转元件为太阳轮，所述第二旋转元件为行星架，所述第三旋转元件为齿圈。
在其中一实施例中，所述第一离合器与所述第二离合器集成设置在同一个壳体内。
在其中一实施例中，所述第一旋转元件为太阳轮，所述第二旋转元件为齿圈，所述第三旋转元件为行星架。
在其中一实施例中，所述第一离合器与所述第二离合器集成设置在同一个壳体内。
在其中一实施例中，所述离合器齿轮设置在所述第一电机与所述行星齿轮装置之间。
在其中一实施例中，所述第一离合器的主动盘与所述第一电机输出轴固定连接，所述离合器齿轮固定连接至所述第一离合器的从动盘，所述第二离合器的其中一个转动盘与所述第一离合器的从动盘固定连接，所述第二离合器的另一个转动盘与所述第三旋转元件固定连接。
在其中一实施例中，所述中间轴上固定有第一齿轮和第二齿轮，所述第一齿轮与所述离合器齿轮相互啮合；所述第二电机具有第二电机输出轴，所述第二电机输出轴上固定有第三齿轮，所述第三齿轮与所述第一齿轮相互啮合；所述混合动力驱动系统还包括差速器，所述差速器上设有差速器齿轮，所述第二齿轮与所述差速器齿轮相互啮合。
在其中一实施例中，所述混合动力驱动系统具有一级纯电动模式、二级纯电动模式、增程模式、一级发动机直驱模式、二级发动机直驱模式、一级混动模式、二级混动模式、三级混动模式和制动发电模式。
在其中一实施例中，所述第一电机、所述离合器齿轮、所述行星齿轮装置及所述发动机同轴设置。
在其中一实施例中，所述制动装置为制动器或单向离合器。
 有益效果
本发明实施例提供的混合动力驱动系统，整体结构较简单，具有单电机纯电动模式、双电机纯电动模式、增程模式、两种发动机直驱模式、三种混动模式和制动发电模式等多种工作模式，可根据电池的SOC值及车速需求自动实现不同模式的切换，具有较强的灵活性，而且在进行工作模式切换时，第二电机参与驱动，动力不存在中断。另外，发动机和第一电机通过行星齿轮装置连接，速比可调，速比范围较大，能有效减小第一电机的体积。该混合动力驱动系统能覆盖HEV(Hybrid Electric Vehicle，即混合动力汽车)和PHEV(Plug-in Hybrid Electric Vehicle，即插电式混合动力汽车)，平台化好。
 附图说明
图1是本发明第一实施例的混合动力驱动系统的结构示意图。
图2是图1的混合动力驱动系统在一级纯电动模式下的动力传递示意图。
图3是图1的混合动力驱动系统在二级纯电动模式下的动力传递示意图。
图4是图1的混合动力驱动系统在增程模式下的动力传递示意图。
图5是图1的混合动力驱动系统在一级发动机直驱模式下的动力传递示意图。
图6是图1的混合动力驱动系统在二级发动机直驱模式下的动力传递示意图。
图7是图1的混合动力驱动系统在一级混动模式下的动力传递示意图。
图8是图1的混合动力驱动系统在二级混动模式下的动力传递示意图。
图9是图1的混合动力驱动系统在三级混动模式下的动力传递示意图。
图10是图1的混合动力驱动系统在制动发电模式下的动力传递示意图。
图11是本发明第二实施例的混合动力驱动系统的结构示意图。
图12是本发明第三实施例的混合动力驱动系统的结构示意图。
图13是本发明第四实施例的混合动力驱动系统的结构示意图。
 本发明的实施方式
为更进一步阐述本发明为达成预定发明目的所采取的技术手段及功效，以下结合附图及较佳实施例，对本发明详细说明如下。
第一实施例
图1是本发明第一实施例的混合动力驱动系统的结构示意图。如图1所示，混合动力驱动系统10包括发动机11、行星齿轮装置12、第一电机13、离合器齿轮14、制动装置15、第一离合器161、第二离合器162、中间轴17、第二电机18、差速器19和动力电池(图未示)。
发动机11具有发动机输出轴112。在本实施例中，发动机11例如为汽油发动机或柴油发动机。
第一电机13具有第一电机输出轴132。第一电机13与发动机11同轴设置，即第一电机13的第一电机输出轴132与发动机11的发动机输出轴112在同一轴线上。在本实施例中，第一电机13为驱动和发电一体机。
发动机11与第一电机13通过行星齿轮装置12连接。行星齿轮装置12包括第一旋转元件、第二旋转元件和第三旋转元件，其中第一旋转元件与第一电机13的第一电机输出轴132连接，第二旋转元件与发动机11的发动机输出轴112连接。第一旋转元件、第二旋转元件和第三旋转元件各自为太阳轮122、行星架124、齿圈123三者中的一个。在本实施例中，第一旋转元件122为太阳轮122，第二旋转元件为行星架124，第三旋转元件为齿圈123。即在本实施例中，太阳轮122与第一电机输出轴132连接，行星架124与发动机输出轴112连接。
行星架124上设有行星轮125，行星轮125通过滚动轴承或者滑动轴承连接在行星架124上。太阳轮122设置在齿圈123内，行星轮125设置在太阳轮122与齿圈123之间，行星轮125分别与太阳轮122、齿圈123相互啮合。
离合器齿轮14与第一电机13、行星齿轮装置12及发动机11同轴设置。离合器齿轮14设置在第一电机13与行星齿轮装置12之间。离合器齿轮14空套在第一电机输出轴132上，即第一电机输出轴132与离合器齿轮14各自转动时相互不受影响。
离合器齿轮14通过第一离合器161与第一电机输出轴132连接，第一离合器161用于将离合器齿轮14与第一电机输出轴132接合或断开。第一离合器161的主动盘与第一电机输出轴132固定连接，离合器齿轮14固定连接至第一离合器161的从动盘。当第一离合器161工作时(即从动盘与主动盘接合)，第一离合器161将离合器齿轮14与第一电机输出轴132固定连接，此时离合器齿轮14和第一电机输出轴132同步转动；当第一离合器161不工作时(即从动盘与主动盘分离)，离合器齿轮14空套在第一电机输出轴132上，此时离合器齿轮14可独立于第一电机输出轴132进行转动。
离合器齿轮14通过第二离合器162与第三旋转元件连接，第二离合器162用于将离合器齿轮14与第三旋转元件接合或断开。第二离合器162的其中一个转动盘与第一离合器161的从动盘固定连接，第二离合器162的另一个转动盘与第三旋转元件固定连接。在本实施例中，第三旋转元件为齿圈123，即第二离合器162用于将离合器齿轮14与齿圈123接合或断开。当第二离合器162工作时(即两个转动盘接合)，第二离合器162将离合器齿轮14与齿圈123固定连接，此时离合器齿轮14和齿圈123同步转动；当第二离合器162不工作时(即两个转动盘分离)，离合器齿轮14与齿圈123相互分离。
制动装置15用于制动或解锁第三旋转元件(在本实施例中即齿圈123)。制动装置15例如为制动器或单向离合器。在本实施例中，制动装置15用于制动或解锁齿圈123，当制动装置15工作时，制动装置15制动齿圈123，此时齿圈123不可转动；当制动装置15不工作时，制动装置15解锁齿圈123，此时齿圈123可转动。
离合器齿轮14与中间轴17连接并通过中间轴17输出动力至车辆的轮端。中间轴17上固定有第一齿轮172和第二齿轮173，第一齿轮172与第二齿轮173相互间隔设置，第一齿轮172与离合器齿轮14相互啮合。
第二电机18与第一电机13平行设置，第二电机18与中间轴17连接并通过中间轴17输出动力至车辆的轮端。具体地，第二电机18具有第二电机输出轴182，第二电机输出轴182上固定有第三齿轮183，第三齿轮183与第一齿轮172相互啮合。在本实施例中，第二电机18为驱动和发电一体机。
差速器19上设有差速器齿轮192，差速器齿轮192与第二齿轮173相互啮合。差速器19用于调整左右轮的转速差，当汽车转弯行驶或在不平路面上行驶时，使左右车轮以不同转速滚动。
动力电池分别与第一电机13、第二电机18电性连接。动力电池为第一电机13和第二电机18提供驱动用的电能，同时第一电机13和第二电机18在发电时产生的电能可存储在动力电池中。在本实施例中，发动机11通过行星架124和太阳轮122驱使第一电机13旋转产生电能，该电能可存储在动力电池中；当汽车制动时，制动时的动力由轮端经过差速器19、差速器齿轮192、第二齿轮173、第一齿轮172、第三齿轮183后传递到第二电机18，驱使第二电机18旋转产生电能，该电能可存储在动力电池中。
本实施例的混合动力驱动系统10具有一级纯电动模式、二级纯电动模式、增程模式、一级发动机直驱模式、二级发动机直驱模式、一级混动模式、二级混动模式、三级混动模式和制动发电模式。
图2是图1的混合动力驱动系统在一级纯电动模式下的动力传递示意图，动力传递方向如图中箭头方向所示，在一级纯电动模式下，制动装置15、第一离合器161、第二离合器162、发动机11和第一电机13均不工作，第二电机18进行驱动。此时，动力传递具有一条路径，即由第二电机18通过第三齿轮183传递到第一齿轮172、中间轴17、第二齿轮173、差速器齿轮192、差速器19，最后到轮端。当汽车处于中低速行驶时，混合动力驱动系统10可在一级纯电动模式下进行驱动。
图3是图1的混合动力驱动系统在二级纯电动模式下的动力传递示意图，动力传递方向如图中箭头方向所示，在二级纯电动模式下，制动装置15、第二离合器162和发动机11均不工作，第一离合器161工作，将离合器齿轮14与第一电机输出轴132固定连接，第一电机13和第二电机18均进行驱动。此时，动力传递具有两条路径，其中路径一由第一电机13通过离合器齿轮14传递到第一齿轮172、中间轴17、第二齿轮173、差速器齿轮192、差速器19，最后到轮端；路径二由第二电机18通过第三齿轮183传递到第一齿轮172、中间轴17、第二齿轮173、差速器齿轮192、差速器19，最后到轮端。当汽车处于高速行驶时，混合动力驱动系统10可在二级纯电动模式下进行驱动。
图4是图1的混合动力驱动系统在增程模式下的动力传递示意图，动力传递方向如图中箭头方向所示，在增程模式下，第一离合器161和第二离合器162均不工作，制动装置15工作以制动齿圈123，发动机11带动行星架124转动，将动力传递到太阳轮122，再传递到第一电机13，由发动机11驱动第一电机13进行发电，第一电机13产生的电能可以存在动力电池中或提供给第二电机18，由第二电机18进行驱动。此时，动力传递具有一条路径，由第二电机18通过第三齿轮183传递到第一齿轮172、中间轴17、第二齿轮173、差速器齿轮192、差速器19，最后到轮端。
图5是图1的混合动力驱动系统在一级发动机直驱模式下的动力传递示意图，动力传递方向如图中箭头方向所示，在一级发动机直驱模式下，制动装置15、第一电机13和第二电机18均不工作，第一离合器161工作，将离合器齿轮14与第一电机输出轴132固定连接，同时第二离合器162工作，将离合器齿轮14与齿圈123固定连接，由发动机11进行驱动。此时，整个行星齿轮装置12的速比为1，太阳轮122、行星架124、齿圈123的转速相同，动力传递具有一条路径，由发动机11驱使整个行星齿轮装置12转动，动力由离合器齿轮14传递到第一齿轮172、中间轴17、第二齿轮173、差速器齿轮192、差速器19，最后到轮端。当汽车处于中低速行驶时，混合动力驱动系统10可在一级发动机直驱模式下进行驱动。
图6是图1的混合动力驱动系统在二级发动机直驱模式下的动力传递示意图，动力传递方向如图中箭头方向所示，在二级发动机直驱模式下，第二离合器162、第一电机13和第二电机18均不工作，第一离合器161工作，将离合器齿轮14与第一电机输出轴132固定连接，制动装置15工作以制动齿圈123，由发动机11进行驱动。此时，动力传递具有一条路径，发动机11带动行星架124转动，将动力传递到太阳轮122，并由离合器齿轮14传递到第一齿轮172、中间轴17、第二齿轮173、差速器齿轮192、差速器19，最后到轮端。当汽车处于中高速行驶时，混合动力驱动系统10可在二级发动机直驱模式下进行驱动。
图7是图1的混合动力驱动系统在一级混动模式下的动力传递示意图，动力传递方向如图中箭头方向所示，在一级混动模式下，制动装置15和第一离合器161均不工作，第二离合器162工作，将离合器齿轮14与齿圈123固定连接，发动机11驱动行星架124旋转，第一电机13驱动太阳轮122旋转，发动机11与第一电机13通过行星齿轮装置12无级耦合，由发动机11、第一电机13和第二电机18共同进行驱动。此时，动力传递具有两条路径，其中路径一，发动机11的动力通过行星架124传入，第一电机13的动力通过太阳轮122传入，发动机11和第一电机13的动力通过行星齿轮装置12无级耦合，通过齿圈123输出，并由离合器齿轮143传递到第一齿轮172、中间轴17、第二齿轮173、差速器齿轮192、差速器19，最后到轮端；路径二，由第二电机18通过第三齿轮183传递到第一齿轮172、中间轴17、第二齿轮173、差速器齿轮192、差速器19，最后到轮端。值得一提的是，当混合动力驱动系统10在一级混动模式下驱动时，该系统处于ECVT(Electronic controlled variable transmission)无级调速模式，发动机11的工作点可以通过第一电机13和第二电机18来调节，使发动机11一直在高效区运行，能保证系统动力性、经济性。当汽车处于全速行驶时，混合动力驱动系统10可在一级混动模式下进行驱动。
图8是图1的混合动力驱动系统在二级混动模式下的动力传递示意图，动力传递方向如图中箭头方向所示，在二级混动模式下，制动装置15不工作，第一离合器161工作，将离合器齿轮14与第一电机输出轴132固定连接，同时第二离合器162工作，将离合器齿轮14与齿圈123固定连接，发动机11、第一电机13和第二电机18均进行驱动。此时，整个行星齿轮装置12的速比为1，太阳轮122、行星架124、齿圈123的转速相同，动力传递具有两条路径，其中路径一，发动机11的动力通过行星架124传入，第一电机13的动力通过太阳轮122传入，动力由离合器齿轮14传递到第一齿轮172、中间轴17、第二齿轮173、差速器齿轮192、差速器19，最后到轮端；路径二，由第二电机18通过第三齿轮183传递到第一齿轮172、中间轴17、第二齿轮173、差速器齿轮192、差速器19，最后到轮端。当汽车处于中低速行驶时，混合动力驱动系统10可在二级混动模式下进行驱动。
图9是图1的混合动力驱动系统在三级混动模式下的动力传递示意图，动力传递方向如图中箭头方向所示，在三级混动模式下，第二离合器162不工作，第一离合器161工作，将离合器齿轮14与第一电机输出轴132固定连接，制动装置15工作以制动齿圈123，发动机11、第一电机13和第二电机18均进行驱动。此时，动力传递具有两条路径，其中路径一，发动机11带动行星架124转动，将动力传递到太阳轮122，第一电机13将动力也传递到太阳轮122，动力进行耦合后，由离合器齿轮14传递到第一齿轮172、中间轴17、第二齿轮173、差速器齿轮192、差速器19，最后到轮端；路径二，由第二电机18通过第三齿轮183传递到第一齿轮172、中间轴17、第二齿轮173、差速器齿轮192、差速器19，最后到轮端。当汽车处于中高速行驶时，混合动力驱动系统10可在三级混动模式下进行驱动。
图10是图1的混合动力驱动系统在制动发电模式下的动力传递示意图，动力传递方向如图中箭头方向所示，在制动发电模式下，制动装置15、第一离合器161、第二离合器162、发动机11和第一电机13均不工作，此时，车辆制动时的动力由轮端传递到第二电机18进行发电，动力由轮端经过差速器19、差速器齿轮192、第二齿轮173、第一齿轮172、第三齿轮183后传递到第二电机18，驱使第二电机18旋转产生电能。
本实施例的混合动力驱动系统10具有一级纯电动模式、二级纯电动模式、增程模式、一级发动机直驱模式、二级发动机直驱模式、一级混动模式、二级混动模式、三级混动模式和制动发电模式，可根据动力电池的SOC值(State of Charge, 即剩余电量)及车速需求自动实现不同模式的切换。例如，判断动力电池的SOC值与第一阈值的大小关系，或者同时判断动力电池的SOC值与第一阈值的大小关系以及车速与第二阈值的大小关系；根据判断结果，切换混合动力驱动系统10的工作模式。需要说明的是，第一阈值用于判断动力电池SOC值的高低，第二阈值用于判断车速的高低，本实施例不对第一阈值和第二阈值的取值范围做限定，通常可以根据具体的控制策略自由设定，不同的控制策略下，第一阈值和第二阈值的取值都不尽相同。设定好第一阈值和第二阈值后，则自动判断并根据判断结果在各种模式间自动切换。上述工作模式具体以表格体现如下：
  
 
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第二实施例
图11是本发明第二实施例的混合动力驱动系统的结构示意图。如图11所示，本实施例的混合动力驱动系统10与上述第一实施例的结构大致相同，不同点在于第一离合器161与第二离合器162的安装位置不同。
具体地，在本实施例中，第二离合器162设置在第一离合器161内，使第一离合器161和第二离合器162集成设在同一个壳体内，且第一离合器161与第二离合器162沿着第一电机输出轴132同轴设置，从而能大大减小第一离合器161和第二离合器162单独布置所占的体积，为发动机其他元件的布置预留了空间。
第三实施例
图12是本发明第三实施例的混合动力驱动系统的结构示意图。如图12所示，本实施例的混合动力驱动系统10与上述第一实施例的结构大致相同，不同点在于发动机11与行星齿轮装置12的连接关系以及离合器齿轮14与行星齿轮装置12的连接关系不同。
具体地，在本实施例中，与第一电机输出轴132连接的第一旋转元件为太阳轮122，与发动机输出轴112连接的第二旋转元件为齿圈123，第三旋转元件为行星架124。
也就是说，在本实施例中，太阳轮122与第一电机输出轴132连接，齿圈123与发动机输出轴112连接，行星架124通过第二离合器162与离合器齿轮14连接。
在本实施例中，离合器齿轮14通过第二离合器162与行星架124连接，第二离合器162用于将离合器齿轮14与行星架124接合或断开。当第二离合器162工作时，第二离合器162将离合器齿轮14与行星架124固定连接，此时离合器齿轮14和行星架124同步转动；当第二离合器162不工作时，离合器齿轮14与行星架124相互分离。
在本实施例中，制动装置15用于制动或解锁行星架124，当制动装置15工作时，制动装置15制动行星架124，此时行星架124不可转动；当制动装置15不工作时，制动装置15解锁行星架124，此时行星架124可转动。
本实施例的混合动力驱动系统10具有一级纯电动模式、二级纯电动模式、增程模式、一级发动机直驱模式、二级发动机直驱模式、一级混动模式、二级混动模式、三级混动模式和制动发电模式。
关于本实施例的混合动力驱动系统10的其余各部件的连接关系以及在各工作模式下的驱动原理，可以参照上述第一实施例进行理解，在此不再赘述。
第四实施例
图13是本发明第四实施例的混合动力驱动系统的结构示意图。如图13所示，本实施例的混合动力驱动系统10与上述第三实施例的结构大致相同，不同点在于第一离合器161与第二离合器162的安装位置不同。
具体地，在本实施例中，第二离合器162设置在第一离合器161内，使第一离合器161和第二离合器162集成设在同一个壳体内，且第一离合器161与第二离合器162沿着第一电机输出轴132同轴设置，从而能大大减小第一离合器161和第二离合器162单独布置所占的体积，为发动机其他元件的布置预留了空间。
本发明实施例提供的混合动力驱动系统，整体结构较简单，具有单电机纯电动模式、双电机纯电动模式、增程模式、两种发动机直驱模式、三种混动模式和制动发电模式等多种工作模式，可根据电池的SOC值及车速需求自动实现不同模式的切换，具有较强的灵活性，而且在进行工作模式切换时，第二电机参与驱动，动力不存在中断。另外，发动机和第一电机通过行星齿轮装置连接，速比可调，速比范围较大，能有效减小第一电机的体积。该混合动力驱动系统能覆盖HEV(Hybrid Electric Vehicle，即混合动力汽车)和PHEV(Plug-in Hybrid Electric Vehicle，即插电式混合动力汽车)，平台化好。
上述实施方式只是本发明的实施例，不是用来限制本发明的实施与权利范围，凡依据本发明专利所申请的保护范围中所述的内容做出的等效变化和修饰，均应包括在本发明的专利保护范围内。
 工业实用性
本发明实施例提供的混合动力驱动系统，整体结构较简单，具有单电机纯电动模式、双电机纯电动模式、增程模式、两种发动机直驱模式、三种混动模式和制动发电模式等多种工作模式，可根据电池的SOC值及车速需求自动实现不同模式的切换，具有较强的灵活性，而且在进行工作模式切换时，第二电机参与驱动，动力不存在中断。另外，发动机和第一电机通过行星齿轮装置连接，速比可调，速比范围较大，能有效减小第一电机的体积。该混合动力驱动系统能覆盖HEV(Hybrid Electric Vehicle，即混合动力汽车)和PHEV(Plug-in Hybrid Electric Vehicle，即插电式混合动力汽车)，平台化好。

Claims (15)

  1. 一种混合动力驱动系统，其特征在于，包括发动机(11)、行星齿轮装置(12)、第一电机(13)、离合器齿轮(14)、制动装置(15)、第一离合器(161)、第二离合器(162)、中间轴(17)和第二电机(18)，其中：
    所述发动机(11)与所述第一电机(13)通过所述行星齿轮装置(12)连接，所述行星齿轮装置(12)包括第一旋转元件、第二旋转元件和第三旋转元件，所述第一旋转元件、所述第二旋转元件和所述第三旋转元件各自为太阳轮(122)、行星架(124)、齿圈(123)三者中的一个，所述发动机(11)具有发动机输出轴(112)，所述第一电机(13)具有第一电机输出轴(132)，所述第一旋转元件与所述第一电机输出轴(132)连接，所述第二旋转元件与所述发动机输出轴(112)连接；
    所述离合器齿轮(14)空套在所述第一电机输出轴(132)上，所述离合器齿轮(14)通过所述第一离合器(161)与所述第一电机输出轴(132)连接，所述第一离合器(161)用于将所述离合器齿轮(14)与所述第一电机输出轴(132)接合或断开，所述离合器齿轮(14)通过所述第二离合器(162)与所述第三旋转元件连接，所述第二离合器(162)用于将所述离合器齿轮(14)与所述第三旋转元件接合或断开，所述离合器齿轮(14)与所述中间轴(17)连接并通过所述中间轴(17)输出动力至轮端；
    所述制动装置(15)用于制动或解锁所述第三旋转元件；
    所述第二电机(18)与所述中间轴(17)连接并通过所述中间轴(17)输出动力至轮端。
  2. 如权利要求1所述的混合动力驱动系统，其特征在于，所述第一旋转元件为太阳轮(122)，所述第二旋转元件为行星架(124)，所述第三旋转元件为齿圈(123)。
  3. 如权利要求2所述的混合动力驱动系统，其特征在于，所述第一离合器(161)与所述第二离合器(162)集成设置在同一个壳体内。
  4. 如权利要求1所述的混合动力驱动系统，其特征在于，所述第一旋转元件为太阳轮(122)，所述第二旋转元件为齿圈(123)，所述第三旋转元件为行星架(124)。
  5. 如权利要求4所述的混合动力驱动系统，其特征在于，所述第一离合器(161)与所述第二离合器(162)集成设置在同一个壳体内。
  6. 如权利要求1所述的混合动力驱动系统，其特征在于，所述离合器齿轮(14)设置在所述第一电机(13)与所述行星齿轮装置(12)之间。
  7. 如权利要求1所述的混合动力驱动系统，其特征在于，所述第一离合器(161)的主动盘与所述第一电机输出轴(132)固定连接，所述离合器齿轮(14)固定连接至所述第一离合器(161)的从动盘，所述第二离合器(162)的其中一个转动盘与所述第一离合器(161)的从动盘固定连接，所述第二离合器(162)的另一个转动盘与所述第三旋转元件固定连接。
  8. 如权利要求1所述的混合动力驱动系统，其特征在于，所述中间轴(17)上固定有第一齿轮(172)和第二齿轮(173)，所述第一齿轮(172)与所述离合器齿轮(14)相互啮合；所述第二电机(18)具有第二电机输出轴(182)，所述第二电机输出轴(182)上固定有第三齿轮(183)，所述第三齿轮(183)与所述第一齿轮(172)相互啮合；所述混合动力驱动系统还包括差速器(19)，所述差速器(19)上设有差速器齿轮(192)，所述第二齿轮(173)与所述差速器齿轮(192)相互啮合。
  9. 如权利要求8所述的混合动力驱动系统，其特征在于，所述混合动力驱动系统具有一级纯电动模式和二级纯电动模式；在所述一级纯电动模式下，所述制动装置(15)、所述第一离合器(161)、所述第二离合器(162)、所述发动机(11)和所述第一电机(13)均不工作，所述第二电机(18)进行驱动；在所述二级纯电动模式下，所述制动装置(15)、所述第二离合器(162)和所述发动机(11)均不工作，所述第一离合器(161)工作以将所述离合器齿轮(14)与所述第一电机输出轴(132)固定连接，所述第一电机(13)和所述第二电机(18)均进行驱动。
  10. 如权利要求8所述的混合动力驱动系统，其特征在于，所述混合动力驱动系统具有增程模式，在所述增程模式下，所述第一离合器(161)和所述第二离合器(162)均不工作，所述制动装置(15)工作以制动所述第三旋转元件，所述发动机(11)驱动所述第一电机(13)进行发电，所述第二电机(18)进行驱动。
  11. 如权利要求8所述的混合动力驱动系统，其特征在于，所述混合动力驱动系统具有一级发动机直驱模式和二级发动机直驱模式；在所述一级发动机直驱模式下，所述制动装置(15)、所述第一电机(13)和所述第二电机(18)均不工作，所述第一离合器(161)工作以将所述离合器齿轮(14)与所述第一电机输出轴(132)固定连接，所述第二离合器(162)工作以将所述离合器齿轮(14)与所述第三旋转元件固定连接，所述发动机(11)进行驱动；在所述二级发动机直驱模式下，所述第二离合器(162)、所述第一电机(13)和所述第二电机(18)均不工作，所述第一离合器(161)工作以将所述离合器齿轮(14)与所述第一电机输出轴(132)固定连接，所述制动装置(15)工作以制动所述第三旋转元件，所述发动机(11)进行驱动。
  12. 如权利要求8所述的混合动力驱动系统，其特征在于，所述混合动力驱动系统具有一级混动模式、二级混动模式和三级混动模式；在所述一级混动模式下，所述制动装置(15)和所述第一离合器(161)均不工作，所述第二离合器(162)工作以将所述离合器齿轮(14)与所述第三旋转元件固定连接，所述发动机(11)、所述第一电机(13)和所述第二电机(18)均进行驱动；在所述二级混动模式下，所述制动装置(15)不工作，所述第一离合器(161)工作以将所述离合器齿轮(14)与所述第一电机输出轴(132)固定连接，所述第二离合器(162)工作以将所述离合器齿轮(14)与所述第三旋转元件固定连接，所述发动机(11)、所述第一电机(13)和所述第二电机(18)均进行驱动；在所述三级混动模式下，所述第二离合器(162)不工作，所述第一离合器(161)工作以将所述离合器齿轮(14)与所述第一电机输出轴(132)固定连接，所述制动装置(15)工作以制动所述第三旋转元件，所述发动机(11)、所述第一电机(13)和所述第二电机(18)均进行驱动。
  13. 如权利要求8所述的混合动力驱动系统，其特征在于，所述混合动力驱动系统具有制动发电模式，在所述制动发电模式下，所述制动装置(15)、所述第一离合器(161)、所述第二离合器(162)、所述发动机(11)和所述第一电机(13)均不工作，车辆制动时的动力由轮端传递到所述第二电机(18)进行发电。
  14. 如权利要求1所述的混合动力驱动系统，其特征在于，所述第一电机(13)、所述离合器齿轮(14)、所述行星齿轮装置(12)及所述发动机(11)同轴设置。
  15. 如权利要求1所述的混合动力驱动系统，其特征在于，所述制动装置(15)为制动器或单向离合器。
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