WO2024068719A1 - Transmission for a hybrid traction or propulsion motor vehicle - Google Patents

Transmission for a hybrid traction or propulsion motor vehicle Download PDF

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Publication number
WO2024068719A1
WO2024068719A1 PCT/EP2023/076682 EP2023076682W WO2024068719A1 WO 2024068719 A1 WO2024068719 A1 WO 2024068719A1 EP 2023076682 W EP2023076682 W EP 2023076682W WO 2024068719 A1 WO2024068719 A1 WO 2024068719A1
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WO
WIPO (PCT)
Prior art keywords
shaft
transmission
gear
pinion
input shaft
Prior art date
Application number
PCT/EP2023/076682
Other languages
French (fr)
Inventor
Michel Raoul
Original Assignee
New H Powertrain Holding S.L.U.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by New H Powertrain Holding S.L.U. filed Critical New H Powertrain Holding S.L.U.
Publication of WO2024068719A1 publication Critical patent/WO2024068719A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—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
    • B60K6/40—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 assembly or relative disposition of components
    • 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
    • B60K6/40—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 assembly or relative disposition of components
    • B60K6/405—Housings
    • 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
    • B60—VEHICLES IN GENERAL
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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
    • B60K6/50—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
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B60K2006/268—Electric drive motor starts the engine, i.e. used as starter motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/06—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0043—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising four forward speeds

Definitions

  • TITLE Transmission for motor vehicle with hybrid propulsion or traction
  • the present invention relates to the field of transmissions for motor vehicles with propulsion or hybrid traction comprising on the one hand a traction means by a thermal engine, and on the other hand an electric traction means.
  • the invention relates to hybrid transmissions comprising a heat engine, two electric drive machines, and three primary shafts, one connected to the crankshaft of the heat engine and the other two connected to each of the electric machines.
  • the connection of each of the traction means with its primary shaft does not have any decoupling means.
  • the main electrical machine is configured to be connected to the wheels of the vehicle in two different ratios by dog engagement means without a synchronization device.
  • the heat engine is configured to be connected to the wheels of the vehicle in four different ratios using the same engagement means.
  • Two of the heat engine gears are dependent on the gears of the main electric machine and two gears, including the fourth gear, are dedicated to the heat engine.
  • the heat engine and the electric machines are attached to the gearbox.
  • a spline drive and dynamic sealing are present between said gearbox and each electrical machine.
  • the electric generating machine has a very high rotation speed compared to that of the heat engine, so that the reliability of the assembly is difficult to guarantee due to its arrangement at height and without means of correcting coaxiality defects.
  • Each electric machine has its own water cooling system, which, added to that of the box, generates three cooling systems to manage.
  • the Joule effect losses of electric machines cannot be directly used to accelerate the rise in temperature of the gearbox oil during the first kilometers, and thus improve its energy efficiency.
  • the electric generating machine is permanently connected to the heat engine.
  • PHEV plug-in hybrid electric vehicle
  • the electric generating machine cannot participate. to the traction of the vehicle.
  • the main electric driving machine must then be sized to ensure driving in electric mode alone.
  • the main electric machine is a so-called slow machine, it has two gears, namely a so-called short gear to ensure acceleration at low speed and a so-called long gear to ensure maximum speed.
  • a so-called short gear to ensure acceleration at low speed
  • a so-called long gear to ensure maximum speed.
  • the continuity of the torque to the wheel is taken care of by the electric generating machine but is only partially ensured.
  • the object of the present invention is therefore to provide a hybrid transmission whose energy performance is improved.
  • a first machine or main electrical machine comprising a rotor secured to a main power transmission shaft secured in rotation to a main box input shaft by a spline connection, the main box input shaft being configured to be coupled or decoupled from the wheels of the vehicle by a first coupling system,
  • a second machine or secondary electrical machine comprising a rotor secured to a secondary power transmission shaft secured in rotation to a secondary box input shaft by a spline connection, the secondary box input shaft being configured to be coupled or decoupled from the wheels of the vehicle by a second coupling system, and
  • the second electric machine is linked to the wheels independently of the thermal engine.
  • the generator when the powertrain is a plug-in hybrid, the generator can be used as a powertrain for driving in electric mode. By supporting the traction machine, it reduces its size.
  • the electrical machines are integrated into a dedicated compartment of the gearbox, at the end of it.
  • Electric machines preferably operate in oil.
  • the transmission may include a single cooling system for both electrical machines and the gearbox.
  • the transmission comprises a first secondary shaft configured to be coupled or decoupled from the main gearbox shaft and a second secondary shaft configured to be coupled or decoupled from the secondary gearbox shaft.
  • the main gearbox shaft carries a single idler gear and the first secondary shaft carries a fixed gear configured to mesh with the first idler gear and teeth configured to mesh with a bridge crown of a differential assembly.
  • the first coupling system is carried by the gearbox shaft and includes a hub and a sliding or sliding sleeve.
  • the secondary box input shaft carries two idle gears and the second secondary shaft carries a fixed gear configured to mesh with a first intermediate gear carried by an intermediate shaft and configured to mesh with the first idle gear of the secondary gearbox input shaft, the second secondary shaft further carrying teeth configured to mesh with the bridge crown of the differential assembly.
  • the second coupling system is carried by the secondary gearbox shaft and includes a hub and a sliding or sliding sleeve.
  • the input shaft of the heat engine carries a fixed gear configured to mesh with the second idle gear of the secondary gearbox input shaft.
  • the pair of connecting pinions between the generator and the heat engine is integrated into the axial space of the bridge crown.
  • the transmission has, for the thermal engine, several gears independent of the electric machines, which allows driving in thermal mode alone on all gears.
  • the input shaft of the heat engine carries five fixed gears, namely a pinion corresponding to the pinion of the second gear, a pinion corresponding to the pinion of the first gear, a pinion corresponding to the pinion of the third gear, a pinion corresponding to the pinion pinion of the fourth gear and the pinion corresponding to the pinion driving the thermal engine by the secondary electric machine, the fixed gears, respectively of the first and third gears, being configured to mesh respectively with idle gears carried by the first secondary shaft and the fixed gears, respectively second and fourth gears, being configured to mesh respectively with idler gears carried by the second secondary shaft.
  • the transmission further comprises a parking brake device comprising a toothed wheel, the axial position of said wheel being inscribed in the axial section of the bridge crown of the differential assembly.
  • the toothed wheel is located on the main gearbox input shaft of the main electrical machine and is integrated into the axial space of the bridge crown.
  • the main electrical machine is offset from the axis of the crankshaft of the heat engine, which results in the removal of the hollow shaft.
  • the traction machine is chosen as a fast type capable of reaching 15,000 rpm, which eliminates the problem of gear changes, and is configured to be disconnected.
  • the invention relates to a motor vehicle with hybrid propulsion or traction comprising at least two drive wheels and a transmission, as described above, configured to rotate said drive wheels.
  • FIG. 1 represents a schematic cross-sectional view of a transmission of a motor vehicle according to one embodiment of the invention
  • FIG 2 is a longitudinal section view II-II of the transmission of Figure 1, passing through the main machine, the secondary machine, the secondary shaft and the differential;
  • FIG 3 is a cross-sectional view III-III of a bridge crown of the transmission of Figure 2;
  • FIG 4 shows the power path from the electrical machines to the wheels of the transmission in Figure 2;
  • FIG 5 represents the power path from the heat engine to the wheels of the transmission of Figure 2 on the first and third gears
  • FIG 6 represents the power path from the heat engine to the wheels of the transmission of Figure 2 on the second and fourth gears
  • FIG 7 represents the power path between the heat engine and the secondary electrical generating machine.
  • a powertrain or transmission referenced 1 as a whole, is intended to be integrated into a motor vehicle with hybrid propulsion or traction (not shown).
  • the powertrain 1 comprises two electric machines 20, 40 each intended to drive a drive shaft (not shown) of the drive wheels of the vehicle via a differential assembly 100.
  • the electric machines 20, 40 each include their own power transmission path.
  • the powertrain 1 further comprises a thermal engine represented by its input shaft 60.
  • Each power source is connected to an input shaft.
  • the main machine, called the driving machine, 20 is connected to an input shaft 25.
  • the secondary traction machine, called the generator, 40 is connected to an input shaft 45. There is no decoupling device between the power sources and the input shafts 25, 45, 60.
  • All power sources are configured to be connected to the vehicle wheels via shafts, gears and coupling devices in one or more ratios.
  • the powertrain 1 comprises three separate casings 10, 11, 12, namely a flywheel casing 10, a casing 11 of the mechanisms and a casing 12 of the electrical machines.
  • the flywheel housing 10 incorporates a heat engine flywheel (not shown).
  • the casing 10 of the flywheel and the casing 11 of the mechanisms delimit between them a first compartment (not referenced) in which all the mechanics are mounted, such as in particular the power transmission means, the coupling systems, the mechanism for engaging a parking brake, etc.
  • the casing 11 of the mechanisms and the casing 12 of the electrical machines define between them a second compartment (not referenced) in which the two electrical machines 20, 40 are mounted.
  • the lubricating and cooling fluid for the bearings and pinion bearings corresponds to the cooling fluid for electrical machines 20, 40.
  • the first electric machine 20 or main machine comprises a shaft 21 supporting a rotor 22 and a stator 23. Control of this electric machine is possible thanks to a speed and angular position sensor 24.
  • the rotor shaft 21 is integral in rotation with the main gearbox input shaft 25 by a splined connection 29.
  • the second bearing 27 is mounted in the machine casing 12 and supports the rotor shaft 21, and the third bearing 28 is mounted in the flywheel casing 10.
  • the main gearbox input shaft 25 is supported on the one hand by the third bearing 28 and, on the other hand, by the rotor shaft 21 by a centering and guiding zone 29a juxtaposed with the splines 29.
  • the gearbox shaft 25 carries a single idler gear 30 and a first coupling system composed of a hub 3 1 and a sliding sleeve 32 or sliding sleeve.
  • the transmission 1 further comprises a parking brake device comprising a toothed wheel 33 arranged near the third bearing 28 and close to the joint plane of the casings of the flywheel 10 and intermediate 11.
  • the axial position of this parking wheel 33 is inscribed in the axial edge of the bridge ring 102 of the differential assembly 100, as visible in Figure 3.
  • the movement of the sleeve 32 allows the coupling of the gearbox input shaft 25 with the pinion 30.
  • This secondary shaft 80 has, at its opposite end, a toothing 81 which meshes with the bridge crown 102, carried by a differential housing 101 of the differential assembly 100.
  • This double meshing 30, 82 and 81, 102 constitutes the only connection of the main machine 20 with the wheels, as can be seen on the power transmission path illustrated in broken lines in Figure 4.
  • the second electric machine 40 or secondary machine, called generator comprises a shaft 41 supporting a rotor 42 and a stator 43. Control of this electric machine is possible thanks to a speed and angular position sensor 44.
  • the rotor shaft 41 is integral in rotation with the secondary box input shaft 45 by a splined connection 49. These two shafts 41, 45 are supported by three bearings 46, 47, 48.
  • the second bearing 47 is mounted in the machine casing 12 and the third bearing 48 is mounted in the flywheel casing 10 and supports the secondary gearbox input shaft 45.
  • the rotor shaft 41 is supported on the one hand by the second bearing 47 and, on the other hand, by the secondary box input shaft 45 by a centering and guiding zone 49a juxtaposed with the splines
  • the secondary gearbox input shaft 45 carries two idle gears
  • the possibility of making the two electrical machines work in tandem is important because it makes it possible, for a targeted total electrical power, to reduce the size of the main electrical machine 20.
  • the secondary box input shaft 45 is coupled to the idler gear 5 1 which meshes with a fixed gear 65 carried by the input shaft 60 of the heat engine.
  • This connection drives the secondary electric machine 40 and the heat engine functions in both directions: either the secondary machine 40 is driving and allows the heat engine to start, or it is receiving, that is to say generator, and takes part of the heat. the power of the heat engine in order to recharge the battery, as can be seen on the power transmission path illustrated in solid lines in Figure 7.
  • the pair of pinions 5 1, 65, as well as the parking wheel 33 are inscribed in the axial section of the bridge crown 102. This pair of pinions 51, 65 do not impact the length of the transmission and contribute to its compactness .
  • the input shaft 60 of the transmission corresponds to the shaft of the heat engine.
  • the input shaft 60 carries five fixed gears, namely a pinion 61 corresponding to the pinion of the second gear, a pinion 62 corresponding to the pinion of the first gear, a pinion 63 corresponding to the pinion of the third gear, a pinion 64 corresponding to the pinion of the fourth gear and the pinion 65 corresponding to the pinion driving the heat engine by the generator 40.
  • Transmission 1 has, for the thermal engine, four independent gears.
  • the fixed gears 62, 63 that is to say the odd ratios, mesh respectively with the idle gears 93, 94 carried by the second secondary shaft 90, respectively first idle gear 93 and third idle gear 94.
  • This shaft 90 also carries a coupling device comprising a hub 95 and a sliding sleeve 96 or sliding sleeve.
  • the secondary shaft 90 By moving the sleeve 96 to the left, that is to say towards the electric machine 40, the secondary shaft 90 is coupled to the first idler gear 93.
  • the first ratio is established as can be seen on the power transmission path illustrated in dotted lines in Figure 5.
  • the secondary shaft 90 By moving the sleeve 96 to the right, that is to say towards the heat engine, the secondary shaft 90 is coupled to the third idler gear 94.
  • the third report is established as can be seen on the power transmission path illustrated in solid lines in Figure 5 and in broken lines for the common part.
  • the fixed gears 61, 64 that is to say the even ratios, mesh respectively with the idle gears 83, 84 carried by the first secondary shaft 80, respectively second idle gear 83 and fourth idle gear 84.
  • This shaft 80 also carries a coupling device comprising a hub 85 and a sliding sleeve 86 or sliding sleeve.
  • the secondary shaft 80 is coupled to the second idler gear 83.
  • the second gear is established as can be seen on the power transmission path illustrated in dotted lines in Figure 6.
  • the secondary shaft 80 is coupled to the fourth idler gear 84.
  • the fourth report is established as can be seen on the power transmission path illustrated in solid lines in Figure 6 and in broken lines for the common part.
  • the generator it is thus possible to use the generator as a motor for driving in electric mode. By supporting the traction machine, it reduces its size.

Abstract

The invention relates to a transmission (1) for a hybrid traction or propulsion motor vehicle, the transmission (1) comprising: • - a first machine (20) comprising a rotor (22) secured to a main power transmission shaft (21) that rotates conjointly with a main gearbox input shaft (25) configured to be coupled to or uncoupled from the wheels of the vehicle, • - a second machine (40) comprising a rotor (42) secured to a secondary power transmission shaft (41) that rotates conjointly with a secondary gearbox input shaft (45) configured to be coupled to or uncoupled from the wheels of the vehicle, and • - a combustion engine secured to an input shaft (60). The second electric machine (40) is connected to the wheels independently of the combustion engine.

Description

DESCRIPTION DESCRIPTION
TITRE : Transmission pour véhicule automobile à propulsion ou traction hybride TITLE: Transmission for motor vehicle with hybrid propulsion or traction
La présente invention concerne le domaine des transmissions pour véhicules automobiles à propulsion ou à traction hybride comportant d'une part un moyen de traction par un moteur thermique, et d'autre part un moyen de traction électrique. The present invention relates to the field of transmissions for motor vehicles with propulsion or hybrid traction comprising on the one hand a traction means by a thermal engine, and on the other hand an electric traction means.
Plus particulièrement, l ’ invention concerne les transmissions hybrides comprenant un moteur thermique, deux machines électriques d’ entraînement, et trois arbres primaires, l ’un relié au vilebrequin du moteur thermique et les deux autres reliés à chacune des machines électriques. La liaison de chacun des moyens de traction avec son arbre primaire est dépourvue de moyen de découplage. More particularly, the invention relates to hybrid transmissions comprising a heat engine, two electric drive machines, and three primary shafts, one connected to the crankshaft of the heat engine and the other two connected to each of the electric machines. The connection of each of the traction means with its primary shaft does not have any decoupling means.
On connait le document FR 3 022 495 qui décrit une transmission hybride configurée pour transmettre aux roues du véhicule automobile la puissance d’un moteur thermique et de deux machines électriques. Le moteur thermique et la machine électrique principale, dite motrice, sont chacun relié à un arbre primaire sans dispositif de découplage. Ces deux arbres primaires sont coaxiaux et l ’ arbre de la machine électrique est concentrique à l ’ arbre du moteur thermique. La seconde machine électrique, dite génératrice, est déportée latéralement par rapport à l ’ axe de vilebrequin et connectée à l ’ arbre primaire lié au moteur thermique, de manière permanente par une successions de pignons. We know the document FR 3 022 495 which describes a hybrid transmission configured to transmit to the wheels of the motor vehicle the power of a thermal engine and two electric machines. The heat engine and the main electric machine, called the driving machine, are each connected to a primary shaft without a decoupling device. These two primary shafts are coaxial and the shaft of the electric machine is concentric with the shaft of the heat engine. The second electric machine, called the generator, is offset laterally in relation to the crankshaft axis and connected to the primary shaft linked to the heat engine, permanently by a succession of pinions.
La machine électrique principale est configurée pour être connectée aux roues du véhicule selon deux rapports différents par des moyens d’ engagement à crabot sans dispositif de synchronisation. Le moteur thermique est configuré pour être connecté aux roues du véhicule selon quatre rapports différents à l ’ aide des mêmes moyens d’ engagement. Deux des rapports du moteur thermique sont dépendants des rapports de la machine électrique principale et deux rapports, dont le rapport de quatrième, sont dédiés au moteur thermique. Le moteur thermique et les machines électriques sont rapportés sur la boîte de vitesses. Un entraînement par cannelures et une étanchéité dynamique sont présents entre ladite boîte de vitesses et chaque machine électrique. La machine électrique génératrice a une vitesse de rotation très élevée par rapport à celle du moteur thermique, de sorte que la fiabilité du montage est difficile à garantir du fait de son agencement en hauteur et sans moyen de correction des défauts de coaxialité. The main electrical machine is configured to be connected to the wheels of the vehicle in two different ratios by dog engagement means without a synchronization device. The heat engine is configured to be connected to the wheels of the vehicle in four different ratios using the same engagement means. Two of the heat engine gears are dependent on the gears of the main electric machine and two gears, including the fourth gear, are dedicated to the heat engine. The heat engine and the electric machines are attached to the gearbox. A spline drive and dynamic sealing are present between said gearbox and each electrical machine. The electric generating machine has a very high rotation speed compared to that of the heat engine, so that the reliability of the assembly is difficult to guarantee due to its arrangement at height and without means of correcting coaxiality defects.
Chaque machine électrique dispose de son propre système de refroidissement en eau, qui, aj outé à celui de la boîte génère trois systèmes de refroidissement à gérer. Les pertes par effet Joule des machines électriques ne sont pas directement utilisables pour l ’ accélération de la montée en température de l ’ huile de la boîte de vitesses lors des premiers kilomètres, et ainsi améliorer son rendement énergétique. Each electric machine has its own water cooling system, which, added to that of the box, generates three cooling systems to manage. The Joule effect losses of electric machines cannot be directly used to accelerate the rise in temperature of the gearbox oil during the first kilometers, and thus improve its energy efficiency.
La machine électrique génératrice est connectée de manière permanente au moteur thermique. Lors des roulages en mode électrique, plus particulièrement lorsqu’ il s’ agit d’un véhicule hybride rechargeable, dit plug-in hybrid electric vehicle, d’ acronyme « PHEV » en termes anglo-saxons, la machine électrique génératrice ne peut pas participer à la traction du véhicule. La machine électrique principale, motrice, doit alors être dimensionnée pour assurer seule les roulages en mode électrique. The electric generating machine is permanently connected to the heat engine. When driving in electric mode, more particularly when it is a rechargeable hybrid vehicle, called a plug-in hybrid electric vehicle, acronym “PHEV” in English terms, the electric generating machine cannot participate. to the traction of the vehicle. The main electric driving machine must then be sized to ensure driving in electric mode alone.
Par ailleurs, la machine électrique principale est une machine dite lente, elle dispose de deux rapports, à savoir un rapport dit court pour assurer les accélérations à basse vitesse et un rapport dit long pour assurer la vitesse maximale. Pendant le changement de rapport, la continuité du couple à la roue est prise en charge par la machine électrique génératrice mais n’ est que partiellement assurée. Furthermore, the main electric machine is a so-called slow machine, it has two gears, namely a so-called short gear to ensure acceleration at low speed and a so-called long gear to ensure maximum speed. During the gear change, the continuity of the torque to the wheel is taken care of by the electric generating machine but is only partially ensured.
Il existe un besoin d’ améliorer les transmissions hybrides de véhicules automobiles de l ’ état de la technique. There is a need to improve state-of-the-art hybrid transmissions of motor vehicles.
L’ obj et de la présente invention est donc de fournir une transmission hybride dont les performances énergétiques sont améliorées. - une première machine ou machine électrique principale comprenant un rotor solidaire d’un arbre de transmission de puissance principal solidaire en rotation d’un arbre principal d’ entrée de boîte par une liaison à cannelures, l ’ arbre principal d’ entrée de boîte étant configuré pour être couplé ou découplé des roues du véhicule par un premier système de couplage, The object of the present invention is therefore to provide a hybrid transmission whose energy performance is improved. - a first machine or main electrical machine comprising a rotor secured to a main power transmission shaft secured in rotation to a main box input shaft by a spline connection, the main box input shaft being configured to be coupled or decoupled from the wheels of the vehicle by a first coupling system,
- une deuxième machine ou machine électrique secondaire comprenant un rotor solidaire d’un arbre de transmission de puissance secondaire solidaire en rotation d’un arbre secondaire d’ entrée de boîte par une liaison à cannelures, l ’ arbre secondaire d’ entrée de boîte étant configuré pour être couplé ou découplé des roues du véhicule par un deuxième système de couplage, et - a second machine or secondary electrical machine comprising a rotor secured to a secondary power transmission shaft secured in rotation to a secondary box input shaft by a spline connection, the secondary box input shaft being configured to be coupled or decoupled from the wheels of the vehicle by a second coupling system, and
- un moteur thermique solidaire d’un arbre d’ entrée. - a heat engine attached to an input shaft.
La deuxième machine électrique est liée aux roues de manière indépendante au moteur thermique. The second electric machine is linked to the wheels independently of the thermal engine.
Ainsi, lorsque le groupe motopropulseur est hybride rechargeable, la génératrice est utilisable en motrice pour les roulages en mode électrique. En épaulant la machine de traction, elle permet de réduire la taille de cette dernière. Thus, when the powertrain is a plug-in hybrid, the generator can be used as a powertrain for driving in electric mode. By supporting the traction machine, it reduces its size.
Par exemple, les machines électriques sont intégrées dans un compartiment dédié de la boîte de vitesses, en extrémité de celle-ci . For example, the electrical machines are integrated into a dedicated compartment of the gearbox, at the end of it.
Cela permet d’ envisager une sortie commune des trois phases de chaque machine et des câblages des résolvers et favorise l ’ installation de l ’ électronique de puissance directement sur la boîte de vitesses avec une liaison par busbar et sans câblages. This makes it possible to consider a common output of the three phases of each machine and the wiring of the resolvers and favors the installation of the power electronics directly on the gearbox with a busbar connection and without wiring.
Les machines électriques fonctionnent de préférence dans l ’huile. La transmission peut comprendre un système de refroidissement unique pour les deux machines électriques et la boîte de vitesses. Electric machines preferably operate in oil. The transmission may include a single cooling system for both electrical machines and the gearbox.
Ainsi, on récupère les pertes par effet Joule des machines électriques pour accélérer le chauffage de l ’ huile et améliorer l ’ efficacité de la transmission sur le cycle d’ homologation et les roulages en conditions réelles faible charge et faible durée. Thus, the Joule effect losses of electrical machines are recovered to accelerate the heating of the oil and improve the efficiency of the transmission over the approval cycle and driving in real conditions with low load and short duration.
De plus, on peut supprimer les j oints d’ étanchéité et ainsi les pertes associées. Enfin, les liaisons par cannelures des machines électriques avec les arbres d’ entrée sont lubrifiées l ’ huile avec circulation. In addition, the seals and thus the associated losses can be eliminated. Finally, the spline connections of the electrical machines with the input shafts are lubricated with circulating oil.
Avantageusement, la transmission comprend un premier arbre secondaire configuré pour être couplé ou découplé de l ’ arbre principal de boîte et un deuxième arbre secondaire configuré pour être couplé ou découplé de l ’ arbre secondaire de boîte. Advantageously, the transmission comprises a first secondary shaft configured to be coupled or decoupled from the main gearbox shaft and a second secondary shaft configured to be coupled or decoupled from the secondary gearbox shaft.
Le fait d’ avoir deux arbres secondaires permet afin d’ avoir une bonne compacité, et une meilleure tenue mécanique. Les pignons d’ attaque sont relocalisés en extrémité desdits arbres secondaires. Having two secondary shafts allows for good compactness and better mechanical strength. The drive gears are relocated at the end of said secondary shafts.
Par exemple, l ’ arbre principal de boîte porte un unique pignon fou et le premier arbre secondaire porte un pignon fixe configuré pour engrener avec le premier pignon fou et une denture configurée pour engrener avec une couronne de pont d’un ensemble différentiel . For example, the main gearbox shaft carries a single idler gear and the first secondary shaft carries a fixed gear configured to mesh with the first idler gear and teeth configured to mesh with a bridge crown of a differential assembly.
Par exemple, le premier système de couplage est porté par l ’ arbre de boîte et comprend un moyeu et un manchon coulissant ou baladeur. For example, the first coupling system is carried by the gearbox shaft and includes a hub and a sliding or sliding sleeve.
Par exemple, l ’ arbre secondaire d’ entrée de boîte porte deux pignons fous et le deuxième arbre secondaire porte un pignon fixe configuré pour engrener avec un premier pignon intermédiaire porté par un arbre intermédiaire et configuré pour engrener avec le premier pignon fou de l ’ arbre secondaire d’ entrée de boîte, le deuxième arbre secondaire portant en outre une denture configurée pour engrener avec la couronne de pont de l ’ ensemble différentiel . For example, the secondary box input shaft carries two idle gears and the second secondary shaft carries a fixed gear configured to mesh with a first intermediate gear carried by an intermediate shaft and configured to mesh with the first idle gear of the secondary gearbox input shaft, the second secondary shaft further carrying teeth configured to mesh with the bridge crown of the differential assembly.
Par exemple, le deuxième système de couplage est porté par l ’ arbre secondaire de boîte et comprend un moyeu et un manchon coulissant ou baladeur. For example, the second coupling system is carried by the secondary gearbox shaft and includes a hub and a sliding or sliding sleeve.
Par exemple, l ’ arbre d’ entrée du moteur thermique porte un pignon fixe configuré pour engrener avec le deuxième pignon fou de l ’ arbre secondaire d’ entrée de boîte. For example, the input shaft of the heat engine carries a fixed gear configured to mesh with the second idle gear of the secondary gearbox input shaft.
Le couple de pignons de liaison entre la génératrice avec le moteur thermique est intégré dans l ’ espace axial de la couronne de pont. The pair of connecting pinions between the generator and the heat engine is integrated into the axial space of the bridge crown.
Avantageusement, la transmission dispose, pour le moteur thermique, de plusieurs rapports indépendants des machines électriques, ce qui permet un roulage en mode thermique seul sur tous les rapports. Par exemple, l ’ arbre d’ entrée du moteur thermique porte cinq pignons fixes, à savoir un pignon correspondant au pignon du deuxième rapport, un pignon correspondant au pignon du premier rapport, un pignon correspondant au pignon du troisième rapport, un pignon correspondant au pignon du quatrième rapport et le pignon correspondant au pignon d’ entraînement du moteur thermique par la machine électrique secondaire, les pignons fixes, respectivement des rapports de première et de troisième, étant configurés pour engrener respectivement avec des pignons fous portés par le premier arbre secondaire et les pignons fixes, respectivement des rapports de deuxième et de quatrième, étant configurés pour engrener respectivement avec des pignons fous portés par le deuxième arbre secondaire. Advantageously, the transmission has, for the thermal engine, several gears independent of the electric machines, which allows driving in thermal mode alone on all gears. For example, the input shaft of the heat engine carries five fixed gears, namely a pinion corresponding to the pinion of the second gear, a pinion corresponding to the pinion of the first gear, a pinion corresponding to the pinion of the third gear, a pinion corresponding to the pinion pinion of the fourth gear and the pinion corresponding to the pinion driving the thermal engine by the secondary electric machine, the fixed gears, respectively of the first and third gears, being configured to mesh respectively with idle gears carried by the first secondary shaft and the fixed gears, respectively second and fourth gears, being configured to mesh respectively with idler gears carried by the second secondary shaft.
Avantageusement, la transmission comprend en outre un dispositif de frein de parking comprenant une roue dentée, la position axiale de ladite roue étant inscrite dans la tranche axiale de la couronne de pont de l ’ ensemble différentiel . Advantageously, the transmission further comprises a parking brake device comprising a toothed wheel, the axial position of said wheel being inscribed in the axial section of the bridge crown of the differential assembly.
Par exemple, la roue dentée est localisée sur l ’ arbre principal d’ entrée de boîte de la machine électrique principale et est intégrée dans l ’ espace axial de la couronne de pont. For example, the toothed wheel is located on the main gearbox input shaft of the main electrical machine and is integrated into the axial space of the bridge crown.
Avantageusement, la machine électrique principale est déportée de l ’ axe du vilebrequin du moteur thermique, ce qui entraîne la suppression de l ’ arbre creux. Advantageously, the main electrical machine is offset from the axis of the crankshaft of the heat engine, which results in the removal of the hollow shaft.
Par exemple, la machine de traction est choisie de type rapide capable d’ atteindre 15000 tr/min ce qui élimine la problématique des changements de rapports, et est configurée pour être déconnectée. For example, the traction machine is chosen as a fast type capable of reaching 15,000 rpm, which eliminates the problem of gear changes, and is configured to be disconnected.
Selon un second aspect, l ’ invention concerne un véhicule automobile à propulsion ou traction hybride comprenant au moins deux roues motrices et une transmission, telle que décrite précédemment, configurée pour entraîner en rotation lesdites roues motrices. According to a second aspect, the invention relates to a motor vehicle with hybrid propulsion or traction comprising at least two drive wheels and a transmission, as described above, configured to rotate said drive wheels.
D’ autres buts, caractéristiques et avantages de l ’ invention apparaîtront à la lecture de la description suivante, donnée uniquement à titre d’ exemple non limitatif, et faite en référence aux dessins annexés sur lesquels : [Fig 1 ] représente une vue transversale schématique d’une transmission d’un véhicule automobile selon un mode de réalisation de l ’ invention ; Other aims, characteristics and advantages of the invention will appear on reading the following description, given solely by way of non-limiting example, and made with reference to the appended drawings in which: [Fig 1] represents a schematic cross-sectional view of a transmission of a motor vehicle according to one embodiment of the invention;
[Fig 2] est une vue en coupe longitudinale II-II de la transmission de la figure 1 , passant par la machine principale, la machine secondaire, l ’ arbre secondaire et le différentiel ; [Fig 2] is a longitudinal section view II-II of the transmission of Figure 1, passing through the main machine, the secondary machine, the secondary shaft and the differential;
[Fig 3 ] est une vue en coupe transversale III-III d’une couronne de pont de la transmission de la figure 2 ; [Fig 3] is a cross-sectional view III-III of a bridge crown of the transmission of Figure 2;
[Fig 4] représente le chemin de puissance des machines électriques vers les roues de la transmission de la figure 2 ; [Fig 4] shows the power path from the electrical machines to the wheels of the transmission in Figure 2;
[Fig 5] représente le chemin de puissance du moteur thermique vers les roues de la transmission de la figure 2 sur les premier et troisième rapports ; [Fig 5] represents the power path from the heat engine to the wheels of the transmission of Figure 2 on the first and third gears;
[Fig 6] représente le chemin de puissance du moteur thermique vers les roues de la transmission de la figure 2 sur les deuxième et quatrième rapports ; et [Fig 6] represents the power path from the heat engine to the wheels of the transmission of Figure 2 on the second and fourth gears; And
[Fig 7] représente le chemin de puissance entre le moteur thermique et la machine électrique secondaire génératrice. [Fig 7] represents the power path between the heat engine and the secondary electrical generating machine.
Tel qu’ illustré très schématiquement sur la figure 1 , un groupe motopropulseur ou transmission, référencé 1 dans son ensemble, est destiné à être intégré dans un véhicule automobile à propulsion ou à traction hybride (non représenté). As illustrated very schematically in Figure 1, a powertrain or transmission, referenced 1 as a whole, is intended to be integrated into a motor vehicle with hybrid propulsion or traction (not shown).
Le groupe motopropulseur 1 comprend deux machines électriques 20, 40 destinées chacune à entraîner un arbre d’ entraînement (non représenté) des roues motrices du véhicule par l ’intermédiaire d’un ensemble différentiel 100. Les machines électriques 20, 40 comprennent chacune leur propre chemin de transmission de puissance. The powertrain 1 comprises two electric machines 20, 40 each intended to drive a drive shaft (not shown) of the drive wheels of the vehicle via a differential assembly 100. The electric machines 20, 40 each include their own power transmission path.
Le groupe motopropulseur 1 comprend en outre un moteur thermique représenté par son arbre d’ entrée 60. The powertrain 1 further comprises a thermal engine represented by its input shaft 60.
Chaque source de puissance est connectée à un arbre d’ entrée. La machine principale, dite motrice, 20 est connectée à un arbre d’ entrée 25. La machine de traction secondaire, dite génératrice, 40 est connectée à un arbre d’ entrée 45. Il n’y a pas de dispositif de découplage entre les sources de puissance et les arbres d’ entrée 25 , 45, 60. Each power source is connected to an input shaft. The main machine, called the driving machine, 20 is connected to an input shaft 25. The secondary traction machine, called the generator, 40 is connected to an input shaft 45. There is no decoupling device between the power sources and the input shafts 25, 45, 60.
Toutes les sources de puissance sont configurées pour être connectées aux roues du véhicule par l ’ intermédiaire d’ arbres, de pignons et de dispositifs de couplage selon un ou plusieurs rapports. All power sources are configured to be connected to the vehicle wheels via shafts, gears and coupling devices in one or more ratios.
Tel qu’ illustré, le groupe motopropulseur 1 comprend trois carters distincts 10, 1 1 , 12, à savoir un carter 10 de volant moteur, un carter 1 1 des mécanismes et un carter 12 des machines électriques. As illustrated, the powertrain 1 comprises three separate casings 10, 11, 12, namely a flywheel casing 10, a casing 11 of the mechanisms and a casing 12 of the electrical machines.
Le carter 10 du volant moteur intègre un volant d’ inertie (non représenté) de moteur thermique. The flywheel housing 10 incorporates a heat engine flywheel (not shown).
Le carter 10 du volant moteur et le carter 1 1 des mécanismes délimitent entre eux un premier compartiment (non référencé) dans lequel est monté l ’ ensemble de la mécanique, tels que notamment les moyens de transmission de pui ssance, les systèmes de couplage, le mécanisme d’ engagement d’un frein de stationnement, etc... The casing 10 of the flywheel and the casing 11 of the mechanisms delimit between them a first compartment (not referenced) in which all the mechanics are mounted, such as in particular the power transmission means, the coupling systems, the mechanism for engaging a parking brake, etc.
Le carter 1 1 des mécanismes et le carter 12 des machines électriques délimitent entre eux un deuxième compartiment (non référencé) dans lequel sont montées les deux machines électriques 20, 40. The casing 11 of the mechanisms and the casing 12 of the electrical machines define between them a second compartment (not referenced) in which the two electrical machines 20, 40 are mounted.
Ces deux compartiments ne sont pas étanches l ’un par rapport à l ’ autre. Ainsi, le fluide de lubrification et de refroidi ssement des roulements, des paliers des pignons correspond au fluide de refroidissement des machines électriques 20, 40. These two compartments are not watertight relative to each other. Thus, the lubricating and cooling fluid for the bearings and pinion bearings corresponds to the cooling fluid for electrical machines 20, 40.
Ainsi, on a une mutualisation du fluide de chauffage et de refroidissement, et donc un seul système d’ échanges et de régulation. Un intérêt maj eur d’une telle mutualisation est l ’utilisation directe, et donc avec une meilleure efficacité, des calories dissipées par les machines électriques pour chauffer le fluide de lubrification rapidement après le démarrage du moteur et sur une faible distance. Le rendement de la partie mécanique de la transmission se trouve ainsi améliorée. Thus, we have a pooling of the heating and cooling fluid, and therefore a single exchange and regulation system. A major advantage of such pooling is the direct use, and therefore with greater efficiency, of the calories dissipated by the electrical machines to heat the lubricating fluid quickly after starting the engine and over a short distance. The efficiency of the mechanical part of the transmission is thus improved.
La première machine électrique 20 ou machine principale, dite motrice, comprend un arbre 21 supportant un rotor 22 et un stator 23. Le pilotage de cette machine électrique est possible grâce à un capteur de vitesses et de position angulaire 24. L’ arbre rotor 21 est solidaire en rotation de l ’ arbre principal d’ entrée de boîte 25 par une liaison à cannelures 29. Ces deux arbres 21 ,The first electric machine 20 or main machine, called the driving machine, comprises a shaft 21 supporting a rotor 22 and a stator 23. Control of this electric machine is possible thanks to a speed and angular position sensor 24. The rotor shaft 21 is integral in rotation with the main gearbox input shaft 25 by a splined connection 29. These two shafts 21,
25 sont supportés par trois roulements 26, 27, 28. Le premier roulement25 are supported by three bearings 26, 27, 28. The first bearing
26 est monté dans le carter intermédiaire 1 1 , le deuxième roulement 27 est monté dans le carter des machines 12 et supporte l’ arbre du rotor 21 , et le troisième roulement 28 est monté dans le carter du volant moteur 10. 26 is mounted in the intermediate casing 11, the second bearing 27 is mounted in the machine casing 12 and supports the rotor shaft 21, and the third bearing 28 is mounted in the flywheel casing 10.
L’ arbre principal d’ entrée de boîte 25 est supporté d’une part par le troisième roulement 28 et, d’ autre part, par l ’ arbre rotor 21 par une zone de centrage et de guidage 29a juxtaposée aux cannelures 29. The main gearbox input shaft 25 is supported on the one hand by the third bearing 28 and, on the other hand, by the rotor shaft 21 by a centering and guiding zone 29a juxtaposed with the splines 29.
L’ arbre de boîte 25 porte un unique pignon fou 30 et un premier système de couplage composé d’un moyeu 3 1 et d’un manchon coulissant 32 ou baladeur. The gearbox shaft 25 carries a single idler gear 30 and a first coupling system composed of a hub 3 1 and a sliding sleeve 32 or sliding sleeve.
La transmission 1 comprend en outre un dispositif de frein de parking comprenant une roue dentée 33 agencée à proximité du troisième roulement 28 et proche du plan de j oint des carters du volant moteur 10 et intermédiaire 1 1. La position axiale de cette roue de parking 33 est inscrite dans la tranche axiale de la couronne de pont 102 de l ’ ensemble différentiel 100, tel que visible sur la figure 3. The transmission 1 further comprises a parking brake device comprising a toothed wheel 33 arranged near the third bearing 28 and close to the joint plane of the casings of the flywheel 10 and intermediate 11. The axial position of this parking wheel 33 is inscribed in the axial edge of the bridge ring 102 of the differential assembly 100, as visible in Figure 3.
Le déplacement du manchon 32 permet le couplage de l ’ arbre d’ entrée de boîte 25 avec le pignon 30. Celui-ci engrène avec un pignon fixe 82 porté par un arbre secondaire 80, dit haut. Cet arbre secondaire 80 possède, à son extrémité opposée, une denture 81 qui engrène avec la couronne de pont 102, portée par un boîtier différentiel 101 de l ’ ensemble différentiel 100. Ce double engrènement 30, 82 et 81 , 102 constitue l’unique liaison de la machine principale 20 avec les roues, tel que l ’ on peut le voir sur le chemin de transmission de puissance illustré en traits discontinus sur la figure 4. The movement of the sleeve 32 allows the coupling of the gearbox input shaft 25 with the pinion 30. This meshes with a fixed pinion 82 carried by a secondary shaft 80, called high. This secondary shaft 80 has, at its opposite end, a toothing 81 which meshes with the bridge crown 102, carried by a differential housing 101 of the differential assembly 100. This double meshing 30, 82 and 81, 102 constitutes the only connection of the main machine 20 with the wheels, as can be seen on the power transmission path illustrated in broken lines in Figure 4.
La deuxième machine électrique 40 ou machine secondaire, dite génératrice, comprend un arbre 41 supportant un rotor 42 et un stator 43. Le pilotage de cette machine électrique est possible grâce à un capteur de vitesses et de position angulaire 44. The second electric machine 40 or secondary machine, called generator, comprises a shaft 41 supporting a rotor 42 and a stator 43. Control of this electric machine is possible thanks to a speed and angular position sensor 44.
L’ arbre rotor 41 est solidaire en rotation de l ’ arbre secondaire d’ entrée de boîte 45 par une liaison à cannelures 49. Ces deux arbres 41 , 45 sont supportés par trois roulements 46, 47, 48. Le premier roulementThe rotor shaft 41 is integral in rotation with the secondary box input shaft 45 by a splined connection 49. These two shafts 41, 45 are supported by three bearings 46, 47, 48. The first bearing
46 est monté dans le carter intermédiaire 1 1 , le deuxième roulement 47 est monté dans le carter des machines 12 et le troisième roulement 48 est monté dans le carter du volant moteur 10 et supporte l ’ arbre secondaire d’ entrée de boîte 45. 46 is mounted in the intermediate casing 11, the second bearing 47 is mounted in the machine casing 12 and the third bearing 48 is mounted in the flywheel casing 10 and supports the secondary gearbox input shaft 45.
L’ arbre de rotor 41 est supporté d’une part par le deuxième roulement 47 et, d’ autre part, par l ’ arbre secondaire d’ entrée de boîte 45 par une zone de centrage et de guidage 49a juxtaposée aux canneluresThe rotor shaft 41 is supported on the one hand by the second bearing 47 and, on the other hand, by the secondary box input shaft 45 by a centering and guiding zone 49a juxtaposed with the splines
49. 49.
L’ arbre secondaire d’ entrée de boîte 45 porte deux pignons fousThe secondary gearbox input shaft 45 carries two idle gears
50, 51 et un deuxième système de couplage composé d’un moyeu 52 et d’un manchon coulissant 53 ou baladeur. En déplaçant le manchon 53 vers la gauche, c’ est-à-dire vers la machine électrique 40, l ’ arbre secondaire d’ entrée de boîte 45 est couplé au pignon fou 50. Ce pignon 50 engrène avec un pignon intermédiaire 71 , monté sur un palier à aiguilles 72 et porté par un arbre intermédiaire 70. Cet arbre 70 est immobilisé en rotation par une goupille anti-rotation 73. Le pignon intermédiaire 71 engrène avec un pignon fixe 92 porté par l ’ arbre secondaire dit bas 90. Ledit arbre 90 comprend, à son extrémité opposée, une denture 91 qui engrène avec la couronne de pont 102. Ce triple engrènement 50, 71 puis 71 , 92 et 91 , 102 constitue l ’unique liaison de la machine électrique secondaire 40 avec les roues tel que l ’ on peut le voir sur le chemin de transmission de puissance illustré en trait continu sur la figure 4. 50, 51 and a second coupling system composed of a hub 52 and a sliding sleeve 53 or sliding sleeve. By moving the sleeve 53 to the left, that is to say towards the electric machine 40, the secondary gearbox input shaft 45 is coupled to the idler gear 50. This pinion 50 meshes with an intermediate gear 71, mounted on a needle bearing 72 and carried by an intermediate shaft 70. This shaft 70 is immobilized in rotation by an anti-rotation pin 73. The intermediate pinion 71 meshes with a fixed pinion 92 carried by the so-called low secondary shaft 90. Said shaft 90 comprises, at its opposite end, a toothing 91 which meshes with the bridge crown 102. This triple meshing 50, 71 then 71, 92 and 91, 102 constitutes the sole connection of the secondary electrical machine 40 with the wheels such which can be seen on the power transmission path illustrated in solid lines in Figure 4.
Ainsi, l ’ entraînement du différentiel 100 en traction électrique est possible de trois manières différentes. Soit par la machine principale 20, soit par la machine secondaire 40, soit par les deux machines électriques 20, 40. Thus, driving the differential 100 in electric traction is possible in three different ways. Either by the main machine 20, or by the secondary machine 40, or by the two electrical machines 20, 40.
La possibilité de faire travailler les deux machines électriques en tandem est importante car elle permet, pour une puissance totale électrique visée, de réduire la taille de la machine électrique principale 20. The possibility of making the two electrical machines work in tandem is important because it makes it possible, for a targeted total electrical power, to reduce the size of the main electrical machine 20.
En déplaçant le manchon 53 vers la droite, c’ est-à-dire vers le moteur thermique, l ’ arbre secondaire d’ entrée de boîte 45 est couplé au pignon fou 5 1 qui engrène avec un pignon fixe 65 porté par l ’ arbre d’ entrée 60 du moteur thermique. Cette liaison entraîne la machine électrique secondaire 40 et le moteur thermique fonction dans les deux sens : soit la machine secondaire 40 est motrice et permet le démarrage du moteur thermique, soit elle est réceptrice, c’ est à dire génératrice, et prélève une partie de la puissance du moteur thermique afin de recharger la batterie, tel que l ’ on peut le voir sur le chemin de transmission de puissance illustré en trait continu sur la figure 7. By moving the sleeve 53 to the right, that is to say towards the heat engine, the secondary box input shaft 45 is coupled to the idler gear 5 1 which meshes with a fixed gear 65 carried by the input shaft 60 of the heat engine. This connection drives the secondary electric machine 40 and the heat engine functions in both directions: either the secondary machine 40 is driving and allows the heat engine to start, or it is receiving, that is to say generator, and takes part of the heat. the power of the heat engine in order to recharge the battery, as can be seen on the power transmission path illustrated in solid lines in Figure 7.
Le couple de pignons 5 1 , 65, ainsi que la roue de parking 33 est inscrit dans la tranche axiale de la couronne de pont 102. Ce couple de pignons 51 , 65 n’ impactent pas la longueur de la transmission et contribuent à sa compacité. The pair of pinions 5 1, 65, as well as the parking wheel 33 are inscribed in the axial section of the bridge crown 102. This pair of pinions 51, 65 do not impact the length of the transmission and contribute to its compactness .
L’ arbre d’ entrée 60 de la transmission correspond à l ’ arbre du moteur thermique. The input shaft 60 of the transmission corresponds to the shaft of the heat engine.
De la gauche vers la droite de la figure 2, l ’ arbre d’ entrée 60 porte cinq pignons fixes, à savoir un pignon 61 correspondant au pignon du deuxième rapport, un pignon 62 correspondant au pignon du premier rapport, un pignon 63 correspondant au pignon du troisième rapport, un pignon 64 correspondant au pignon du quatrième rapport et le pignon 65 correspondant au pignon d’ entraînement du moteur thermique par la génératrice 40. From left to right in Figure 2, the input shaft 60 carries five fixed gears, namely a pinion 61 corresponding to the pinion of the second gear, a pinion 62 corresponding to the pinion of the first gear, a pinion 63 corresponding to the pinion of the third gear, a pinion 64 corresponding to the pinion of the fourth gear and the pinion 65 corresponding to the pinion driving the heat engine by the generator 40.
La transmission 1 dispose, pour le moteur thermique, de quatre rapports indépendants. Transmission 1 has, for the thermal engine, four independent gears.
Les pignons fixes 62, 63 , c’ est-à-dire les rapports impairs, engrènent respectivement avec les pignons fous 93 , 94 portés par le deuxième arbre secondaire 90, respectivement pignon fou 93 de première et pignon fou 94 de troisième. Cet arbre 90 porte également un dispositif de couplage comprenant un moyeu 95 et un manchon coulissant 96 ou baladeur. The fixed gears 62, 63, that is to say the odd ratios, mesh respectively with the idle gears 93, 94 carried by the second secondary shaft 90, respectively first idle gear 93 and third idle gear 94. This shaft 90 also carries a coupling device comprising a hub 95 and a sliding sleeve 96 or sliding sleeve.
En déplaçant le manchon 96 vers la gauche, c’ est-à-dire vers la machine électrique 40, l ’ arbre secondaire 90 est couplé au pignon fou 93 de première. Le premier rapport est établi tel que l ’ on peut le voir sur le chemin de transmission de puissance illustré en traits pointillés sur la figure 5. En déplaçant le manchon 96 vers la droite, c’ est-à-dire vers le moteur thermique, l ’ arbre secondaire 90 est couplé au pignon fou 94 de troisième. Le troisième rapport est établi tel que l ’ on peut le voir sur le chemin de transmission de puissance illustré en trait continu sur la figure 5 et en traits discontinus pour la partie commune. By moving the sleeve 96 to the left, that is to say towards the electric machine 40, the secondary shaft 90 is coupled to the first idler gear 93. The first ratio is established as can be seen on the power transmission path illustrated in dotted lines in Figure 5. By moving the sleeve 96 to the right, that is to say towards the heat engine, the secondary shaft 90 is coupled to the third idler gear 94. The third report is established as can be seen on the power transmission path illustrated in solid lines in Figure 5 and in broken lines for the common part.
Ces deux rapports sont des ratios de démultiplication indépendants et les engagements sont indépendants de celui des machines électriques 20, 40. These two reports are independent gear ratios and the engagements are independent of that of the electric machines 20, 40.
Les pignons fixes 61 , 64, c’ est-à-dire les rapports pairs, engrènent respectivement avec les pignons fous 83 , 84 portés par le premier arbre secondaire 80, respectivement pignon fou 83 de deuxième et pignon fou 84 de quatrième. Cet arbre 80 porte également un dispositif de couplage comprenant un moyeu 85 et un manchon coulissant 86 ou baladeur. The fixed gears 61, 64, that is to say the even ratios, mesh respectively with the idle gears 83, 84 carried by the first secondary shaft 80, respectively second idle gear 83 and fourth idle gear 84. This shaft 80 also carries a coupling device comprising a hub 85 and a sliding sleeve 86 or sliding sleeve.
En déplaçant le manchon 86 vers la gauche, c’ est-à-dire vers la machine électrique 40, l ’ arbre secondaire 80 est couplé au pignon fou 83 de deuxième. Le deuxième rapport est établi tel que l ’ on peut le voir sur le chemin de transmission de puissance illustré en traits pointillés sur la figure 6. By moving the sleeve 86 to the left, that is to say towards the electric machine 40, the secondary shaft 80 is coupled to the second idler gear 83. The second gear is established as can be seen on the power transmission path illustrated in dotted lines in Figure 6.
En déplaçant le manchon 86 vers la droite, c’ est-à-dire vers le moteur thermique, l ’ arbre secondaire 80 est couplé au pignon fou 84 de quatrième. Le quatrième rapport est établi tel que l ’ on peut le voir sur le chemin de transmission de puissance illustré en trait continu sur la figure 6 et en traits discontinus pour la partie commune. By moving the sleeve 86 to the right, that is to say towards the heat engine, the secondary shaft 80 is coupled to the fourth idler gear 84. The fourth report is established as can be seen on the power transmission path illustrated in solid lines in Figure 6 and in broken lines for the common part.
Ces deux rapports sont des ratios de démultiplication indépendants et les engagements sont indépendants de celui des machines électriques 20, 40. These two reports are independent gear ratios and the engagements are independent of that of the electric machines 20, 40.
Grace à l ’invention, il est ainsi possible d’utiliser la génératrice en motrice pour les roulages en mode électrique. En épaulant la machine de traction, elle permet de réduire la taille de cette dernière. Thanks to the invention, it is thus possible to use the generator as a motor for driving in electric mode. By supporting the traction machine, it reduces its size.

Claims

REVENDICATIONS
1. Transmission ( 1 ) pour véhicule automobile à propulsion ou traction hybride, la transmission ( 1 ) comprenant : 1. Transmission (1) for a motor vehicle with hybrid propulsion or traction, the transmission (1) comprising:
- une première machine (20) comprenant un rotor (22) solidaire d’un arbre (21 ) de transmission de puissance principal solidaire en rotation d’un arbre principal d’ entrée de boîte (25) par une liai son à cannelures (29), l ’ arbre principal d’ entrée de boîte (25) étant configuré pour être couplé ou découplé des roues du véhicule par un premier système de couplage (3 1 , 32), - a first machine (20) comprising a rotor (22) secured to a main power transmission shaft (21) secured in rotation to a main box input shaft (25) by a splined connection (29) ), the main gearbox input shaft (25) being configured to be coupled or decoupled from the wheels of the vehicle by a first coupling system (3 1, 32),
- une deuxième machine (40) comprenant un rotor (42) solidaire d’un arbre (41 ) de transmission de puissance secondaire solidaire en rotation d’un arbre secondaire d’ entrée de boîte (45) par une liaison à cannelures (49), l ’ arbre secondaire d’ entrée de boîte (45) étant configuré pour être couplé ou découplé des roues du véhicule par un deuxième système de couplage (52, 53), et - a second machine (40) comprising a rotor (42) secured to a secondary power transmission shaft (41) secured in rotation to a secondary box input shaft (45) by a spline connection (49) , the secondary gearbox input shaft (45) being configured to be coupled or decoupled from the wheels of the vehicle by a second coupling system (52, 53), and
- un moteur thermique solidaire d’un arbre d’ entrée (60), caractérisé en ce que la deuxième machine électrique (40) est liée aux roues de manière indépendante au moteur thermique. - a heat engine secured to an input shaft (60), characterized in that the second electric machine (40) is linked to the wheels independently of the heat engine.
2. Transmission ( 1 ) selon la revendication 1 , dans laquelle les machines électriques (20, 40) sont intégrées dans un compartiment dédié de la boîte de vitesses, en extrémité de celle-ci . 2. Transmission (1) according to claim 1, in which the electrical machines (20, 40) are integrated in a dedicated compartment of the gearbox, at the end thereof.
3. Transmi ssion ( 1 ) selon la revendication 1 ou 2, dans laquelle les machines électriques (20, 40) fonctionnent dans l ’ huile et dans laquelle la transmission ( 1 ) comprend un système de refroidissement unique pour les deux machines électriques (20, 40) et la boîte de vitesses. 3. Transmission (1) according to claim 1 or 2, in which the electrical machines (20, 40) operate in oil and in which the transmission (1) comprises a single cooling system for the two electrical machines (20 , 40) and the gearbox.
4. Transmission ( 1 ) selon Tune quelconque des revendications précédentes, comprenant un premier arbre secondaire (80) configuré pour être couplé ou découplé de l ’ arbre principal de boîte (25) et un deuxième arbre secondaire (90) configuré pour être couplé ou découplé de l ’ arbre secondaire de boîte (45). 4. Transmission (1) according to any one of the preceding claims, comprising a first secondary shaft (80) configured to be coupled or decoupled from the main gearbox shaft (25) and a second secondary shaft (90) configured to be coupled or decoupled from the secondary gearbox shaft (45).
5. Transmission ( 1 ) selon la revendication 4, dans laquelle l ’ arbre principal de boîte (25) porte un unique pignon fou (30) et le premier arbre secondaire (80) porte un pignon fixe (82) configuré pour engrener avec le premier pignon fou (30) et une denture (81 ) configurée pour engrener avec une couronne de pont ( 102) d’un ensemble différentiel ( 100). 5. Transmission (1) according to claim 4, in which the main gearbox shaft (25) carries a single idler gear (30) and the first secondary shaft (80) carries a fixed gear (82) configured to mesh with the first idler gear (30) and teeth (81) configured to mesh with a bridge ring gear (102) of a differential assembly (100).
6. Transmi ssion ( 1 ) selon la revendication 4 ou 5, dans laquelle l ’ arbre secondaire d’ entrée de boîte (45) porte deux pignons fous (50, 51 ) et le deuxième arbre secondaire (90) porte un pignon fixe (92) configuré pour engrener avec un premier pignon intermédiaire (71 ) porté par un arbre intermédiaire (70) et configuré pour engrener avec le premier pignon fou (50) de l ’ arbre secondaire d’ entrée de boîte (45), le deuxième arbre secondaire (90) portant en outre une denture (91 ) configurée pour engrener avec la couronne de pont ( 102) de l ’ ensemble différentiel ( 100). 6. Transmission (1) according to claim 4 or 5, in which the secondary gearbox input shaft (45) carries two idle gears (50, 51) and the second secondary shaft (90) carries a fixed gear ( 92) configured to mesh with a first intermediate gear (71) carried by an intermediate shaft (70) and configured to mesh with the first idler gear (50) of the secondary box input shaft (45), the second shaft secondary (90) further carrying teeth (91) configured to mesh with the bridge crown (102) of the differential assembly (100).
7. Transmission ( 1 ) selon la revendication 6, dans laquelle l ’ arbre d’ entrée (60) du moteur thermique porte un pignon fixe (65) configuré pour engrener avec le deuxième pignon fou (51 ) de l ’ arbre secondaire d’ entrée de boîte (45). 7. Transmission (1) according to claim 6, in which the input shaft (60) of the heat engine carries a fixed gear (65) configured to mesh with the second idler gear (51) of the secondary shaft of box entrance (45).
8. Transmission ( 1 ) selon l ’une quelconque des revendications précédentes, dans laquelle la transmission ( 1 ) dispose, pour le moteur thermique, de plusieurs rapports indépendants des machines électriques (20, 40). 8. Transmission (1) according to any one of the preceding claims, in which the transmission (1) has, for the heat engine, several reports independent of the electrical machines (20, 40).
9. Transmission ( 1 ) selon la revendication 8, dans laquelle l ’ arbre d’ entrée (60) du moteur thermique porte cinq pignons fixes, à savoir un pignon (61 ) correspondant au pignon du deuxième rapport, un pignon (62) correspondant au pignon du premier rapport, un pignon (63) correspondant au pignon du troisième rapport, un pignon (64) correspondant au pignon du quatrième rapport et le pignon (65) correspondant au pignon d’ entraînement du moteur thermique par la machine électrique secondaire (40), les pignons fixes (62, 63), respectivement des rapports de première et de troisième, étant configurés pour engrener respectivement avec des pignons fous (93 , 94) portés par le premier arbre secondaire (90) et les pignons fixes (61 , 64), respectivement des rapports de deuxième et de quatrième, étant configurés pour engrener respectivement avec des pignons fous (83, 84) portés par le deuxième arbre secondaire (80). 9. Transmission (1) according to claim 8, in which the input shaft (60) of the heat engine carries five fixed gears, namely a pinion (61) corresponding to the pinion of the second gear, a pinion (62) corresponding to the pinion of the first gear, a pinion (63) corresponding to the pinion of the third gear, a pinion (64) corresponding to the pinion of the fourth gear and the pinion (65) corresponding to the pinion for driving the heat engine by the secondary electric machine ( 40), the fixed gears (62, 63), respectively first and third gears, being configured to mesh respectively with idle gears (93, 94) carried by the first secondary shaft (90) and the fixed gears (61 , 64), respectively second and fourth ratios, being configured to mesh respectively with idler gears (83, 84) carried by the second secondary shaft (80).
10. Transmission (1) selon l’une quelconque des revendications précédentes, comprenant en outre un dispositif de frein de parking comprenant une roue dentée (33), la position axiale de ladite roue (33) étant inscrite dans la tranche axiale de la couronne de pont (102) de l’ensemble différentiel (100). 10. Transmission (1) according to any one of the preceding claims, further comprising a parking brake device comprising a toothed wheel (33), the axial position of said wheel (33) being inscribed in the axial edge of the crown bridge (102) of the differential assembly (100).
11. Transmission (1) selon la revendication 10, dans laquelle la roue dentée (33) est localisée sur l’arbre principal d’entrée de boîte (25) de la machine électrique principale (20) et est intégrée dans l’espace axial de la couronne de pont (102). 11. Transmission (1) according to claim 10, in which the toothed wheel (33) is located on the main gearbox input shaft (25) of the main electrical machine (20) and is integrated in the axial space of the bridge crown (102).
12. Transmission (1) selon l’une quelconque des revendications précédentes, dans laquelle la machine électrique principale (20) est déportée de l’axe du vilebrequin du moteur thermique. 12. Transmission (1) according to any one of the preceding claims, in which the main electrical machine (20) is offset from the axis of the crankshaft of the heat engine.
13. Véhicule automobile à propulsion ou traction hybride comprenant au moins deux roues motrices et une transmission (1) selon l’une quelconque des revendications précédentes configurée pour entraîner en rotation lesdites roues motrices. 13. Motor vehicle with hybrid propulsion or traction comprising at least two drive wheels and a transmission (1) according to any one of the preceding claims configured to rotate said drive wheels.
PCT/EP2023/076682 2022-09-27 2023-09-27 Transmission for a hybrid traction or propulsion motor vehicle WO2024068719A1 (en)

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FRFR2209805 2022-09-27
FR2209805A FR3140026A1 (en) 2022-09-27 2022-09-27 Transmission for motor vehicle with hybrid propulsion or traction

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WO2024068719A1 true WO2024068719A1 (en) 2024-04-04

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2881380A1 (en) * 2005-02-01 2006-08-04 Peugeot Citroen Automobiles Sa Reversible rotating machine rotor and input shaft coupling device for motor vehicle, has crown gear and central sleeve whose ends are centered in respective rotor`s hub and shaft, based on sliding adjustment of ends, hub sleeve and shaft
FR3022495A1 (en) 2014-06-24 2015-12-25 Renault Sas HYBRID TRANSMISSION WITH ELECTRIC MACHINE DEPORTEE AND METHOD OF CONTROLLING REPORTING CHANGES
US20190168601A1 (en) * 2016-06-13 2019-06-06 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Transaxle device
WO2021094532A1 (en) * 2019-11-14 2021-05-20 Renault S.A.S Compact powertrain comprising two electric motors and one combustion engine which are not coaxial, and method for controlling same
EP3988363A1 (en) * 2019-08-29 2022-04-27 Aisin Corporation Vehicular drive transmission device
US20220242222A1 (en) * 2019-06-26 2022-08-04 Nissan Motor Co., Ltd. Vehicle drive apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2881380A1 (en) * 2005-02-01 2006-08-04 Peugeot Citroen Automobiles Sa Reversible rotating machine rotor and input shaft coupling device for motor vehicle, has crown gear and central sleeve whose ends are centered in respective rotor`s hub and shaft, based on sliding adjustment of ends, hub sleeve and shaft
FR3022495A1 (en) 2014-06-24 2015-12-25 Renault Sas HYBRID TRANSMISSION WITH ELECTRIC MACHINE DEPORTEE AND METHOD OF CONTROLLING REPORTING CHANGES
US20170129323A1 (en) * 2014-06-24 2017-05-11 Renault S.A.S. Hybrid transmission with offset electric machine and method for controlling gear changes
US20190168601A1 (en) * 2016-06-13 2019-06-06 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Transaxle device
US20220242222A1 (en) * 2019-06-26 2022-08-04 Nissan Motor Co., Ltd. Vehicle drive apparatus
EP3988363A1 (en) * 2019-08-29 2022-04-27 Aisin Corporation Vehicular drive transmission device
WO2021094532A1 (en) * 2019-11-14 2021-05-20 Renault S.A.S Compact powertrain comprising two electric motors and one combustion engine which are not coaxial, and method for controlling same

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