WO2021014061A1 - Hybrid power transmission system with gear shifting synchronised by an electric motor - Google Patents

Hybrid power transmission system with gear shifting synchronised by an electric motor Download PDF

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Publication number
WO2021014061A1
WO2021014061A1 PCT/FR2020/051091 FR2020051091W WO2021014061A1 WO 2021014061 A1 WO2021014061 A1 WO 2021014061A1 FR 2020051091 W FR2020051091 W FR 2020051091W WO 2021014061 A1 WO2021014061 A1 WO 2021014061A1
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WO
WIPO (PCT)
Prior art keywords
coupling device
electric motor
power transmission
transmission system
control
Prior art date
Application number
PCT/FR2020/051091
Other languages
French (fr)
Inventor
Eric Schaeffer
Ridouane Habbani
Original Assignee
Psa Automobiles Sa
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 Psa Automobiles Sa filed Critical Psa Automobiles Sa
Publication of WO2021014061A1 publication Critical patent/WO2021014061A1/en

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    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/32—Electric motors actuators or related electrical control means therefor
    • 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
    • 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
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/11—Stepped gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/15—Control strategies specially adapted for achieving a particular effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/19—Improvement of gear change, e.g. by synchronisation or smoothing gear shift
    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/12—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches
    • F16H3/126—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches using an electric drive
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F16H61/0403—Synchronisation before shifting
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/08—Multiple final output mechanisms being moved by a single common final actuating mechanism
    • F16H63/16—Multiple final output mechanisms being moved by a single common final actuating mechanism the final output mechanisms being successively actuated by progressive movement of the final actuating mechanism
    • F16H63/18—Multiple final output mechanisms being moved by a single common final actuating mechanism the final output mechanisms being successively actuated by progressive movement of the final actuating mechanism the final actuating mechanism comprising cams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4808—Electric machine connected or connectable to gearbox output shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4833—Step up or reduction gearing driving generator, e.g. to operate generator in most efficient speed range
    • 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
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F16H61/0403—Synchronisation before shifting
    • F16H2061/0422—Synchronisation before shifting by an electric machine, e.g. by accelerating or braking the input shaft
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

Definitions

  • TITLE HYBRID POWER TRANSMISSION SYSTEM WITH GEAR CHANGE SYNCHRONIZED BY AN ELECTRIC MOTOR
  • the present invention relates to a hybrid power transmission system with change of ratio: speed synchronized by an electric motor.
  • the invention finds a particularly advantageous application with hybrid power transmission systems provided with a discrete ratio gearbox.
  • the invention is preferably implemented with entry-level hybrid vehicles comprising a low-displacement thermal engine and low-power electric motors.
  • a hybrid powertrain can comprise at least one electric traction motor and a heat engine associated with a gearbox with discrete speed ratios having a primary shaft connected to the heat engine via a clutch as well than a secondary shaft connected to the wheels of the vehicle.
  • the gearbox has a plurality of ratios each having an idle gear mounted on one of the shafts and a pinion rotatably linked to the other shaft.
  • a dog clutch is used to couple the idle gear with the corresponding shaft in order to engage a gear ratio.
  • a traction chain may include a large number of electric motors, namely two electric motors for towing the motor vehicle to which are added one or more gear ratio switching actuators.
  • a gear switching system can consist of a control barrel controlled by an electric actuator in order to move the dog clutch control forks associated with synchronizers.
  • gearbox with discrete speed ratios having a primary shaft and a secondary shaft
  • control barrel capable of moving a clutch of the gearbox in order to change the gear ratio
  • said power transmission system further comprising:
  • control unit configured to control, during a request to change the speed ratio from an initial speed ratio to a target speed ratio, a closing of the first coupling device and a control of the first electric motor so synchronize the primary shaft in speed with the target ratio
  • the control unit is configured to drive an opening of the first coupling device and a closing of the second coupling device, so that the first electric motor can drive the control barrel to engage the gear target by moving the corresponding dog clutch.
  • the invention thus makes it possible, by allowing centralized synchronization of the speed ratios by the electric motor, to eliminate the synchronizers of the gearbox dogs. This simplifies the transmission system while reducing its cost.
  • the invention also makes it possible to limit the number of electric motors by using a single electric motor to control the synchronization of the speed ratios, the gear change control barrel, and, if necessary, the starting of the heat engine.
  • a clutch is connected on the one hand to a crankshaft of the heat engine and on the other hand to the primary shaft of the gearbox.
  • control unit is configured to control a closing of the first coupling device and a closing of the clutch, so that the first electric motor is suitable for starting the heat engine.
  • said power transmission system comprises a second electric motor engaged with the secondary shaft of the gearbox.
  • the control unit is configured to drive the second electric motor so as to ensure pure electric travel.
  • the first coupling device and the second coupling device are clutches or interconnecting devices, in particular electromagnetically controlled.
  • the first coupling device and the second coupling device are each arranged at one end of a through shaft of the first electric motor.
  • a number of reports of the gearbox is equal to 4 or 5.
  • a number of cylinders of the heat engine is equal to 3 or 4.
  • a subject of the invention is also a motor vehicle comprising a power transmission system as defined above.
  • FIG. 1 is a schematic representation of a hybrid power transmission system according to the present invention.
  • Figure 2 is a diagram of different phases of operation of the power transmission system according to the present invention.
  • Figure 1 shows a power transmission system 10 for a motor vehicle comprising a heat engine 1 1 of gasoline or diesel type having a number of cylinders, for example equal to 3 or 4.
  • a heat engine 1 1 having a number higher cylinder capacity could however be used.
  • a gearbox 12 with discrete speed ratios may take the form of a conventional controlled manual gearbox.
  • the gearbox 12 comprises a primary shaft 13 and a secondary shaft 14 connected to the wheels 16 of the vehicle by means of a lowering of the axle 17.
  • the gearbox 12 has a plurality of speed ratios R1 -R4. In this case, the gearbox has 4 speed ratios but it could alternatively have 5 or possibly more.
  • Each speed ratio R1 -R4 is formed by an idler gear 18.1 -18.4 mounted on one of the shafts 13, 14 and a pinion 19.1 -19.4 connected in rotation to the other shaft 13, 14.
  • a dog clutch 20.1, 20.2 makes it possible to couple an idler gear 18.1 -18.4 with the corresponding shaft in order to engage a gear ratio.
  • a clutch 20.1, 20.2 may be associated with a couple of speed ratios, so that by moving in one direction, the clutch 20.1, 20.2 can engage a first gear ratio and by moving in the opposite direction the clutch 20.1, 20.2 may engage another gear.
  • a control cylinder 22 is able to move a dog clutch 20.1, 20.2 to effect a change of speed ratio.
  • a clutch 23 is connected on the one hand to the crankshaft of the heat engine 1 1 and on the other hand to the primary shaft 13 of the gearbox 12.
  • this clutch 23 so that the crankshaft is permanently connected in rotation with the primary shaft 13 of the gearbox 12. The crankshaft of the heat engine 11 is then driven regardless of the operating mode of the system. power transmission 10.
  • a first coupling device 25 is disposed between a first electric motor 26 and the primary shaft 13 of the gearbox 12.
  • the first coupling device 25 is adapted to selectively couple, in a closed state, the first motor electric 26 with the primary shaft 13 of the gearbox 12 in order to synchronize a target speed ratio, and to disconnect, in an open state, the first electric motor 26 with respect to the primary shaft 13 of the gearbox 12.
  • a second coupling device 28 is disposed between the first electric motor 26 and the control barrel 22.
  • the second coupling device 28 is adapted to selectively couple, in a closed state, the first electric motor 26 and the barrel of control 22 to control its rotation in order to effect a change of speed ratio; and in uncoupling, in an open state, the first electric motor 26 and the control barrel 22.
  • the first coupling device 25 and the second coupling device 28 are each arranged at one end of a through shaft 30 of the first electric motor 26.
  • the first coupling device 25 and the second coupling device 28 may take the in the form of clutches or interconnection devices, in particular electromagnetically controlled.
  • a second electric motor 32 is engaged with the secondary shaft 14 of the gearbox 12.
  • the second electric motor 32 which can provide the electric traction of the motor vehicle, is more powerful than the first motor electric 26 ensuring only the starting of the heat engine as well as the synchronization of a speed ratio.
  • the first electric motor 26 associated with the control barrel 22 has a power of 15 kW and a maximum torque of 40 Nm
  • the second electric motor 32 associated with the wheels 16 has a power of 50 kW and a maximum torque of 200 Nm
  • An electric motor 26, 32 can be chosen from a synchronous electric machine, an asynchronous electric machine, or a direct current electric motor.
  • a control unit 33 such as an engine computer, makes it possible to control the various components of the power transmission system 10 according to various operating phases P1 -P4 shown in FIG. 2.
  • control unit 33 is configured to control a closing of the first coupling device 25 and a closing of the clutch 23, so that the first electric motor 26 is able to ensure a start of the heat engine 1 1.
  • the second coupling device 28 is then in the open state.
  • control unit 33 is configured to control, during a request for a gear change from an initial gear ratio to a target gear ratio, a closing of the first coupling device 25 and a control of the first electric motor 26 so as to synchronize the speed of the primary shaft 13 with the target ratio.
  • the clutch 23 and the second coupling device 28 are then in the open state.
  • the control unit 33 is able to control an opening of the first coupling device 25 and a closing of the second coupling device 28, so that the first electric motor 26 can drive the control barrel 22 to engage the target ratio by displacement of the corresponding dog clutch 20.1, 20.2.
  • the invention thus makes it possible, by allowing centralized synchronization of the speed ratios R1 -R4 by the electric motor 26, to eliminate the synchronizers of the dogs 20.1, 20.2. This simplifies the power transmission system 10 while reducing its cost.
  • the invention also makes it possible to limit the number of electric motors by using a single electric motor to control the synchronization of the speed ratios R1 -R4, the gear change control barrel 22, and, if necessary, the starting of the gear. heat engine 1 1.
  • the control unit 33 is configured to drive the second electric motor 32 to ensure pure electric travel when the clutch 23 is open. In the case where the transmission system 10 is devoid of clutch 23, the injection of the heat engine 11 is then cut, and the crankshaft of the heat engine 11 is rotated during the electric travel of the motor vehicle.
  • the invention also relates to a motor vehicle comprising a power transmission system 10.

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

Abstract

The invention concerns a power transmission system (10) for a motor vehicle comprising: - a first coupling device (25), - a second coupling device (28), and - a control unit (33) configured to control, when there is a gear shift request to shift from an initial gear ratio to a target gear ratio, the closing of the first coupling device (25) and the controlling of the first electric motor (26) in such a way as to synchronise the speed of the input shaft (13) with the target ratio, and - once the target ratio is synchronised, the control unit (33) is configured to control the opening of the first coupling device (25) and the closing of the second coupling device (28), such that the first electric motor (26) can move the gear selector drum (22) to engage the target ratio by moving the corresponding jaw clutch.

Description

DESCRIPTION DESCRIPTION
TITRE : SYSTÈME DE TRANSMISSION DE PUISSANCE HYBRIDE À CHANGEMENT DE RAPPORT DE VITESSE SYNCHRONISÉ PAR UN MOTEUR ÉLECTRIQUE TITLE: HYBRID POWER TRANSMISSION SYSTEM WITH GEAR CHANGE SYNCHRONIZED BY AN ELECTRIC MOTOR
[0001] La présente Invention revendique is priorité de ia demande française 1908-389 déposée te 24,07.2019 dent te contenu (texte. dessins et revendications) est ici incorporé par référence. [0001] The present invention claims priority of the French application 1908-389 filed on 24.07.2019, the contents (text. Drawings and claims) are hereby incorporated by reference.
[0002] La présente invention porte sur un système de transmission de puissance hybride à changement de rapport: de vitesse synchronisé par un moteur électrique. L’invention trouve une application particulièrement avantageuse avec les systèmes da transmission de puissance hybride munis d’une boîte de vitesses à rapports discrets. L'invention est de préférence mise en oeuvre avec les véhicules hybrides d'entrée de gamme comportent un moteur thermique de faible cylindrée et des moteurs électriques de faible puissance. [0002] The present invention relates to a hybrid power transmission system with change of ratio: speed synchronized by an electric motor. The invention finds a particularly advantageous application with hybrid power transmission systems provided with a discrete ratio gearbox. The invention is preferably implemented with entry-level hybrid vehicles comprising a low-displacement thermal engine and low-power electric motors.
[0003] De façon connue en soi, une chaine de traction hybride peut comporter au moins un moteur électrique de traction et un moteur thermique associé à une boîte de vitesses à rapports de vitesse discrète ayant un arbre primaire connecté au moteur thermique via un embrayage ainsi qu'un arbre secondaire connecté aux roues du véhicule. La boîte de vitesses comporte une pluralité de rapports ayant chacun un pignon fou monté sur un des arbres et un pignon lié en rotation à l'autre arbre. Un crabot permet de coupler le pignon fou avec l'arbre correspondant afin d'engager un rapport de vitesse. [0003] In a manner known per se, a hybrid powertrain can comprise at least one electric traction motor and a heat engine associated with a gearbox with discrete speed ratios having a primary shaft connected to the heat engine via a clutch as well than a secondary shaft connected to the wheels of the vehicle. The gearbox has a plurality of ratios each having an idle gear mounted on one of the shafts and a pinion rotatably linked to the other shaft. A dog clutch is used to couple the idle gear with the corresponding shaft in order to engage a gear ratio.
[0004] Une chaine de traction peut comporter un nombre important de moteurs électriques, à savoir deux moteurs électriques pour tracter le véhicule automobile auxquels s'ajoutent un ou plusieurs actionneurs de commutation de rapports de vitesse. En effet, un système de commutation de rapports peut consister en un barillet de commande piloté par un actionneur électrique afin de déplacer des fourchettes de commande de crabots associés à des synchroniseurs. [0005] L'invention vise à simplifier la configuration et le fonctionnement des chaînes de traction existantes en proposant un système de transmission de puissance pour un véhicule automobile comportant: A traction chain may include a large number of electric motors, namely two electric motors for towing the motor vehicle to which are added one or more gear ratio switching actuators. Indeed, a gear switching system can consist of a control barrel controlled by an electric actuator in order to move the dog clutch control forks associated with synchronizers. [0005] The invention aims to simplify the configuration and operation of existing traction chains by providing a power transmission system for a motor vehicle comprising:
- un moteur thermique, - a heat engine,
- une boîte de vitesses à rapports de vitesse discrets ayant un arbre primaire et un arbre secondaire, - a gearbox with discrete speed ratios having a primary shaft and a secondary shaft,
- un barillet de commande apte à déplacer un crabot de la boîte de vitesses pour effectuer un changement de rapport de vitesse, et - a control barrel capable of moving a clutch of the gearbox in order to change the gear ratio, and
- un premier moteur électrique, - a first electric motor,
- ledit système de transmission de puissance comportant en outre: - said power transmission system further comprising:
- un premier dispositif de couplage entre le premier moteur électrique et l'arbre primaire de la boîte de vitesses, - a first coupling device between the first electric motor and the primary shaft of the gearbox,
- un deuxième dispositif de couplage entre le premier moteur électrique et le barillet de commande, - a second coupling device between the first electric motor and the control barrel,
- une unité de contrôle configurée pour piloter, lors d'une demande de changement de rapport de vitesse d'un rapport de vitesse initial vers un rapport de vitesse cible, une fermeture du premier dispositif de couplage et une commande du premier moteur électrique de façon à synchroniser en vitesse l'arbre primaire avec le rapport cible, et - a control unit configured to control, during a request to change the speed ratio from an initial speed ratio to a target speed ratio, a closing of the first coupling device and a control of the first electric motor so synchronize the primary shaft in speed with the target ratio, and
- une fois le rapport cible synchronisé, l'unité de contrôle est configurée pour piloter une ouverture du premier dispositif de couplage et une fermeture du deuxième dispositif de couplage, de sorte que le premier moteur électrique peut entraîner le barillet de commande pour engager le rapport cible par déplacement du crabot correspondant. - once the target gear is synchronized, the control unit is configured to drive an opening of the first coupling device and a closing of the second coupling device, so that the first electric motor can drive the control barrel to engage the gear target by moving the corresponding dog clutch.
[0006] L'invention permet ainsi, en autorisant une synchronisation centralisée des rapports de vitesse par le moteur électrique, de supprimer les synchroniseurs des crabots de la boîte de vitesses. On simplifie ainsi le système de transmission tout en réduisant son coût. L'invention permet également de limiter le nombre de moteurs électriques en utilisant un unique moteur électrique pour piloter la synchronisation des rapports de vitesse, le barillet de commande de changement de rapport, et s'il y a lieu le démarrage du moteur thermique. [0007] Selon une réalisation, un embrayage est relié d'une part à un vilebrequin du moteur thermique et d'autre part à l'arbre primaire de la boîte de vitesses. [0006] The invention thus makes it possible, by allowing centralized synchronization of the speed ratios by the electric motor, to eliminate the synchronizers of the gearbox dogs. This simplifies the transmission system while reducing its cost. The invention also makes it possible to limit the number of electric motors by using a single electric motor to control the synchronization of the speed ratios, the gear change control barrel, and, if necessary, the starting of the heat engine. [0007] According to one embodiment, a clutch is connected on the one hand to a crankshaft of the heat engine and on the other hand to the primary shaft of the gearbox.
[0008] Selon une réalisation, l'unité de contrôle est configurée pour piloter une fermeture du premier dispositif de couplage et une fermeture de l'embrayage, de sorte que le premier moteur électrique est apte à assurer un démarrage du moteur thermique. [0008] According to one embodiment, the control unit is configured to control a closing of the first coupling device and a closing of the clutch, so that the first electric motor is suitable for starting the heat engine.
[0009] Selon une réalisation, ledit système de transmission de puissance comporte un deuxième moteur électrique en prise avec l'arbre secondaire de la boîte de vitesses. [0010] Selon une réalisation, l'unité de contrôle est configurée pour piloter le deuxième moteur électrique de façon à assurer un roulage électrique pur. [0009] According to one embodiment, said power transmission system comprises a second electric motor engaged with the secondary shaft of the gearbox. [0010] According to one embodiment, the control unit is configured to drive the second electric motor so as to ensure pure electric travel.
[0011] Selon une réalisation, le premier dispositif de couplage et le deuxième dispositif de couplage sont des embrayages ou des dispositifs de crabotage, notamment à commande électromagnétique. [0012] Selon une réalisation, le premier dispositif de couplage et le deuxième dispositif de couplage sont disposés chacun à une extrémité d'un arbre traversant du premier moteur électrique. [0011] According to one embodiment, the first coupling device and the second coupling device are clutches or interconnecting devices, in particular electromagnetically controlled. [0012] According to one embodiment, the first coupling device and the second coupling device are each arranged at one end of a through shaft of the first electric motor.
[0013] Selon une réalisation, un nombre de rapports de la boîte de vitesses est égal à 4 ou 5. [0014] Selon une réalisation, un nombre de cylindres du moteur thermique est égal à 3 ou 4. [0013] According to one embodiment, a number of reports of the gearbox is equal to 4 or 5. [0014] According to one embodiment, a number of cylinders of the heat engine is equal to 3 or 4.
[0015] L'invention a également pour objet un véhicule automobile comportant un système de transmission de puissance tel que précédemment défini. [0015] A subject of the invention is also a motor vehicle comprising a power transmission system as defined above.
[0016] L’invention sera mieux comprise à la lecture de la description qui suit et à l’examen des figures qui l’accompagnent. Ces figures ne sont données qu’à titre illustratif mais nullement limitatif de l’invention. [0017] [Fig. 1 ] La figure 1 est une représentation schématique d'un système de transmission de puissance hybride selon la présente invention; The invention will be better understood on reading the following description and on examining the accompanying figures. These figures are given only by way of illustration but in no way limit the invention. [0017] [Fig. 1] Figure 1 is a schematic representation of a hybrid power transmission system according to the present invention;
[0018] [Fig. 2] La figure 2 est un diagramme de différentes phases de fonctionnement du système de transmission de puissance selon la présente invention. [0018] [Fig. 2] Figure 2 is a diagram of different phases of operation of the power transmission system according to the present invention.
[0019] La figure 1 montre un système de transmission de puissance 10 pour un véhicule automobile comportant un moteur thermique 1 1 de type essence ou diesel ayant un nombre de cylindres par exemple égal à 3 ou 4. Un moteur thermique 1 1 ayant un nombre de cylindres plus élevé pourrait toutefois être utilisé. [0020] Une boîte de vitesses 12 à rapports de vitesse discrets pourra prendre la forme d'une boîte de vitesses manuelle pilotée classique. La boîte de vitesses 12 comporte un arbre primaire 13 et un arbre secondaire 14 connecté aux roues 16 du véhicule par l'intermédiaire d'une descente de pont 17. La boîte de vitesses 12 comporte une pluralité de rapports de vitesse R1 -R4. En l'occurrence, la boîte de vitesses comporte 4 rapports de vitesse mais elle pourrait en variante en comporter 5 ou éventuellement plus. Figure 1 shows a power transmission system 10 for a motor vehicle comprising a heat engine 1 1 of gasoline or diesel type having a number of cylinders, for example equal to 3 or 4. A heat engine 1 1 having a number higher cylinder capacity could however be used. A gearbox 12 with discrete speed ratios may take the form of a conventional controlled manual gearbox. The gearbox 12 comprises a primary shaft 13 and a secondary shaft 14 connected to the wheels 16 of the vehicle by means of a lowering of the axle 17. The gearbox 12 has a plurality of speed ratios R1 -R4. In this case, the gearbox has 4 speed ratios but it could alternatively have 5 or possibly more.
[0021] Chaque rapport de vitesse R1 -R4 est formé par un pignon fou 18.1 -18.4 monté sur un des arbres 13, 14 et un pignon 19.1 -19.4 lié en rotation à l'autre arbre 13, 14. Un crabot 20.1 , 20.2 permet de coupler un pignon fou 18.1 -18.4 avec l'arbre correspondant afin d'engager un rapport de vitesse. Un crabot 20.1 , 20.2 pourra être associé à un couple de rapports de vitesse, de sorte qu'en se déplaçant suivant une direction le crabot 20.1 , 20.2 peut engager un premier rapport de vitesse et en se déplaçant suivant la direction opposée le crabot 20.1 , 20.2 peut engager un autre rapport de vitesse. [0022] Un barillet de commande 22 est apte à déplacer un crabot 20.1 , 20.2 pour effectuer un changement de rapport de vitesse. Each speed ratio R1 -R4 is formed by an idler gear 18.1 -18.4 mounted on one of the shafts 13, 14 and a pinion 19.1 -19.4 connected in rotation to the other shaft 13, 14. A dog clutch 20.1, 20.2 makes it possible to couple an idler gear 18.1 -18.4 with the corresponding shaft in order to engage a gear ratio. A clutch 20.1, 20.2 may be associated with a couple of speed ratios, so that by moving in one direction, the clutch 20.1, 20.2 can engage a first gear ratio and by moving in the opposite direction the clutch 20.1, 20.2 may engage another gear. A control cylinder 22 is able to move a dog clutch 20.1, 20.2 to effect a change of speed ratio.
[0023] Dans le mode de réalisation représenté, un embrayage 23 est relié d'une part au vilebrequin du moteur thermique 1 1 et d'autre part à l'arbre primaire 13 de la boîte de vitesses 12. Toutefois, pour des considérations économiques, il est possible de supprimer cet embrayage 23 de sorte que le vilebrequin est lié en rotation en permanence avec l'arbre primaire 13 de la boîte de vitesses 12. Le vilebrequin du moteur thermique 1 1 est alors entraîné quel que soit le mode de fonctionnement du système de transmission de puissance 10. In the embodiment shown, a clutch 23 is connected on the one hand to the crankshaft of the heat engine 1 1 and on the other hand to the primary shaft 13 of the gearbox 12. However, for economic considerations , he is possible to remove this clutch 23 so that the crankshaft is permanently connected in rotation with the primary shaft 13 of the gearbox 12. The crankshaft of the heat engine 11 is then driven regardless of the operating mode of the system. power transmission 10.
[0024] Un premier dispositif de couplage 25 est disposé entre un premier moteur électrique 26 et l'arbre primaire 13 de la boîte de vitesses 12. Le premier dispositif de couplage 25 est apte à sélectivement accoupler, dans un état fermé, le premier moteur électrique 26 avec l'arbre primaire 13 de la boîte de vitesses 12 afin de synchroniser un rapport de vitesse cible, et à désaccoupler, dans un état ouvert, le premier moteur électrique 26 par rapport à l'arbre primaire 13 de la boîte de vitesses 12. A first coupling device 25 is disposed between a first electric motor 26 and the primary shaft 13 of the gearbox 12. The first coupling device 25 is adapted to selectively couple, in a closed state, the first motor electric 26 with the primary shaft 13 of the gearbox 12 in order to synchronize a target speed ratio, and to disconnect, in an open state, the first electric motor 26 with respect to the primary shaft 13 of the gearbox 12.
[0025] Un deuxième dispositif de couplage 28 est disposé entre le premier moteur électrique 26 et le barillet de commande 22. Le deuxième dispositif de couplage 28 est apte à sélectivement accoupler, dans un état fermé, le premier moteur électrique 26 et le barillet de commande 22 pour commander sa rotation afin d'effectuer un changement de rapport de vitesse; et à désaccoupler, dans un état ouvert, le premier moteur électrique 26 et le barillet de commande 22. A second coupling device 28 is disposed between the first electric motor 26 and the control barrel 22. The second coupling device 28 is adapted to selectively couple, in a closed state, the first electric motor 26 and the barrel of control 22 to control its rotation in order to effect a change of speed ratio; and in uncoupling, in an open state, the first electric motor 26 and the control barrel 22.
[0026] Le premier dispositif de couplage 25 et le deuxième dispositif de couplage 28 sont disposés chacun à une extrémité d'un arbre traversant 30 du premier moteur électrique 26. Le premier dispositif de couplage 25 et le deuxième dispositif de couplage 28 pourront prendre la forme d'embrayages ou de dispositifs de crabotage, notamment à commande électromagnétique. The first coupling device 25 and the second coupling device 28 are each arranged at one end of a through shaft 30 of the first electric motor 26. The first coupling device 25 and the second coupling device 28 may take the in the form of clutches or interconnection devices, in particular electromagnetically controlled.
[0027] En outre, un deuxième moteur électrique 32 est en prise avec l'arbre secondaire 14 de la boîte de vitesses 12. Le deuxième moteur électrique 32, qui pourra assurer la traction électrique du véhicule automobile, est plus puissant que le premier moteur électrique 26 assurant uniquement le démarrage du moteur thermique ainsi que la synchronisation d'un rapport de vitesse. Dans un exemple particulier de réalisation, le premier moteur électrique 26 associé au barillet de commande 22 possède une puissance de 15 kW et un couple maximum de 40 N.m, et le deuxième moteur électrique 32 associé aux roues 16 possède une puissance de 50 kW et un couple maximum de 200 N.m. Un moteur électrique 26, 32 pourra être choisi parmi une machine électrique synchrone, une machine électrique asynchrone, ou un moteur électrique à courant continu. In addition, a second electric motor 32 is engaged with the secondary shaft 14 of the gearbox 12. The second electric motor 32, which can provide the electric traction of the motor vehicle, is more powerful than the first motor electric 26 ensuring only the starting of the heat engine as well as the synchronization of a speed ratio. In a particular embodiment, the first electric motor 26 associated with the control barrel 22 has a power of 15 kW and a maximum torque of 40 Nm, and the second electric motor 32 associated with the wheels 16 has a power of 50 kW and a maximum torque of 200 Nm An electric motor 26, 32 can be chosen from a synchronous electric machine, an asynchronous electric machine, or a direct current electric motor.
[0028] Une unité de contrôle 33, tel qu'un calculateur moteur, permet de commander les différents composants du système de transmission de puissance 10 suivant différentes phases de fonctionnement P1 -P4 montrées sur la figure 2. [0028] A control unit 33, such as an engine computer, makes it possible to control the various components of the power transmission system 10 according to various operating phases P1 -P4 shown in FIG. 2.
[0029] Suivant une première phase de fonctionnement P1 , l'unité de contrôle 33 est configurée pour piloter une fermeture du premier dispositif de couplage 25 et une fermeture de l'embrayage 23, de sorte que le premier moteur électrique 26 est apte à assurer un démarrage du moteur thermique 1 1. Le deuxième dispositif de couplage 28 est alors à l’état ouvert. According to a first phase of operation P1, the control unit 33 is configured to control a closing of the first coupling device 25 and a closing of the clutch 23, so that the first electric motor 26 is able to ensure a start of the heat engine 1 1. The second coupling device 28 is then in the open state.
[0030] Suivant une deuxième phase de fonctionnement P2, l'unité de contrôle 33 est configurée pour piloter, lors d'une demande de changement de rapport de vitesse d'un rapport de vitesse initial vers un rapport de vitesse cible, une fermeture du premier dispositif de couplage 25 et une commande du premier moteur électrique 26 de façon à synchroniser en vitesse l'arbre primaire 13 avec le rapport cible.According to a second operating phase P2, the control unit 33 is configured to control, during a request for a gear change from an initial gear ratio to a target gear ratio, a closing of the first coupling device 25 and a control of the first electric motor 26 so as to synchronize the speed of the primary shaft 13 with the target ratio.
L'embrayage 23 et le deuxième dispositif de couplage 28 sont alors à l'état ouvert. The clutch 23 and the second coupling device 28 are then in the open state.
[0031] Suivant une troisième phase de fonctionnement P3, une fois le rapport cible synchronisé, l'unité de contrôle 33 est apte à piloter une ouverture du premier dispositif de couplage 25 et une fermeture du deuxième dispositif de couplage 28, de sorte que le premier moteur électrique 26 peut entraîner le barillet de commande 22 pour engager le rapport cible par déplacement du crabot 20.1 , 20.2 correspondant. According to a third operating phase P3, once the target ratio is synchronized, the control unit 33 is able to control an opening of the first coupling device 25 and a closing of the second coupling device 28, so that the first electric motor 26 can drive the control barrel 22 to engage the target ratio by displacement of the corresponding dog clutch 20.1, 20.2.
[0032] L'invention permet ainsi, en autorisant une synchronisation centralisée des rapports de vitesse R1 -R4 par le moteur électrique 26, de supprimer les synchroniseurs des crabots 20.1 , 20.2. On simplifie ainsi le système de transmission de puissance 10 tout en réduisant son coût. L'invention permet également de limiter le nombre de moteurs électriques en utilisant un unique moteur électrique pour piloter la synchronisation des rapports de vitesse R1 -R4, le barillet 22 de commande de changement de rapport, et s'il y a lieu le démarrage du moteur thermique 1 1. [0033] Suivant une quatrième phase de fonctionnement P4, l'unité de contrôle 33 est configurée pour piloter le deuxième moteur électrique 32 pour assurer un roulage électrique pur lorsque l'embrayage 23 est ouvert. Dans le cas où le système de transmission 10 est dépourvu d'embrayage 23, l'injection du moteur thermique 1 1 est alors coupée, et le vilebrequin du moteur thermique 1 1 est entraîné en rotation lors du roulage électrique du véhicule automobile. The invention thus makes it possible, by allowing centralized synchronization of the speed ratios R1 -R4 by the electric motor 26, to eliminate the synchronizers of the dogs 20.1, 20.2. This simplifies the power transmission system 10 while reducing its cost. The invention also makes it possible to limit the number of electric motors by using a single electric motor to control the synchronization of the speed ratios R1 -R4, the gear change control barrel 22, and, if necessary, the starting of the gear. heat engine 1 1. According to a fourth operating phase P4, the control unit 33 is configured to drive the second electric motor 32 to ensure pure electric travel when the clutch 23 is open. In the case where the transmission system 10 is devoid of clutch 23, the injection of the heat engine 11 is then cut, and the crankshaft of the heat engine 11 is rotated during the electric travel of the motor vehicle.
[0034] L'invention a également pour objet un véhicule automobile comportant un système de transmission de puissance 10. The invention also relates to a motor vehicle comprising a power transmission system 10.

Claims

REVENDICATIONS
1. Système de transmission de puissance (10) pour un véhicule automobile comportant: 1. Power transmission system (10) for a motor vehicle comprising:
- un moteur thermique (1 1 ), - a heat engine (1 1),
- une boîte de vitesses (12) à rapports de vitesse discrets ayant un arbre primaire (13) et un arbre secondaire (14), - a gearbox (12) with discrete speed ratios having a primary shaft (13) and a secondary shaft (14),
- un barillet de commande (22) apte à déplacer un crabot (20.1 , 20.2) de la boîte de vitesses (12) pour effectuer un changement de rapport de vitesse, et - a control barrel (22) capable of moving a dog clutch (20.1, 20.2) of the gearbox (12) to effect a gear ratio change, and
- un premier moteur électrique (26), - a first electric motor (26),
caractérisé en ce que ledit système de transmission de puissance (10) comporte en outre: characterized in that said power transmission system (10) further comprises:
- un premier dispositif de couplage (25) entre le premier moteur électrique (26) et l'arbre primaire (13) de la boîte de vitesses (12), - a first coupling device (25) between the first electric motor (26) and the primary shaft (13) of the gearbox (12),
- un deuxième dispositif de couplage (28) entre le premier moteur électrique (26) et le barillet de commande (22), - a second coupling device (28) between the first electric motor (26) and the control barrel (22),
- une unité de contrôle (33) configurée pour piloter, lors d'une demande de changement de rapport de vitesse d'un rapport de vitesse initial vers un rapport de vitesse cible, une fermeture du premier dispositif de couplage (25) et une commande du premier moteur électrique (26) de façon à synchroniser en vitesse l'arbre primaire (13) avec le rapport cible, et - a control unit (33) configured to control, upon a request to change the speed ratio from an initial speed ratio to a target speed ratio, a closing of the first coupling device (25) and a command of the first electric motor (26) so as to synchronize the input shaft (13) in speed with the target ratio, and
- une fois le rapport cible synchronisé, l'unité de contrôle (33) est configurée pour piloter une ouverture du premier dispositif de couplage (25) et une fermeture du deuxième dispositif de couplage (28), de sorte que le premier moteur électrique (26) peut entraîner le barillet de commande (22) pour engager le rapport cible par déplacement du crabot correspondant. - once the target gear is synchronized, the control unit (33) is configured to control an opening of the first coupling device (25) and a closing of the second coupling device (28), so that the first electric motor ( 26) can drive the control barrel (22) to engage the target gear by moving the corresponding dog clutch.
2. Système de transmission de puissance selon la revendication 1 , caractérisé en ce qu'un embrayage (23) est relié d'une part à un vilebrequin du moteur thermique (1 1 ) et d'autre part à l'arbre primaire (13) de la boîte de vitesses (12). 2. Power transmission system according to claim 1, characterized in that a clutch (23) is connected on the one hand to a crankshaft of the heat engine (1 1) and on the other hand to the primary shaft (13) ) of the gearbox (12).
3. Système de transmission de puissance selon la revendication 2, caractérisé en ce que l'unité de contrôle (33) est configurée pour piloter une fermeture du premier dispositif de couplage (25) et une fermeture de l'embrayage (23), de sorte que le premier moteur électrique (26) est apte à assurer un démarrage du moteur thermique (1 1 ). 3. Power transmission system according to claim 2, characterized in that the control unit (33) is configured to control a closing of the first coupling device (25) and a closing of the clutch (23), of so that the first electric motor (26) is able to start the heat engine (1 1).
4. Système de transmission de puissance selon l'une quelconque des revendications 1 ou 3, caractérisé en ce qu'il comporte un deuxième moteur électrique (32) en prise avec l'arbre secondaire (14) de la boîte de vitesses. 4. Power transmission system according to any one of claims 1 or 3, characterized in that it comprises a second electric motor (32) in engagement with the secondary shaft (14) of the gearbox.
5. Système de transmission de puissance selon la revendication 4, caractérisé en ce que l'unité de contrôle (33) est configurée pour piloter le deuxième moteur électrique (32) de façon à assurer un roulage électrique pur. 5. Power transmission system according to claim 4, characterized in that the control unit (33) is configured to drive the second electric motor (32) so as to ensure pure electric driving.
6. Système de transmission de puissance selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le premier dispositif de couplage (25) et le deuxième dispositif de couplage (28) sont des embrayages ou des dispositifs de crabotage, notamment à commande électromagnétique. 6. Power transmission system according to any one of claims 1 to 5, characterized in that the first coupling device (25) and the second coupling device (28) are clutches or dog clutch devices, in particular to electromagnetic control.
7. Système de transmission de puissance selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le premier dispositif de couplage (25) et le deuxième dispositif de couplage (28) sont disposés chacun à une extrémité d'un arbre traversant (30) du premier moteur électrique (26). 7. Power transmission system according to any one of claims 1 to 6, characterized in that the first coupling device (25) and the second coupling device (28) are each disposed at one end of a through shaft. (30) of the first electric motor (26).
8. Système de transmission de puissance selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'un nombre de rapports de la boîte de vitesses (12) est égal à 4 ou 5. 8. Power transmission system according to any one of claims 1 to 7, characterized in that a number of ratios of the gearbox (12) is equal to 4 or 5.
9. Système de transmission de puissance selon l'une quelconque des revendications 1 à 8, caractérisé en ce qu'un nombre de cylindres du moteur thermique (1 1 ) est égal à 3 ou 4. 9. A power transmission system according to any one of claims 1 to 8, characterized in that a number of cylinders of the heat engine (1 1) is equal to 3 or 4.
10. Véhicule automobile comportant un système de transmission de puissance (10) tel que défini selon l'une quelconque des revendications précédentes. 10. Motor vehicle comprising a power transmission system (10) as defined in any one of the preceding claims.
PCT/FR2020/051091 2019-07-24 2020-06-23 Hybrid power transmission system with gear shifting synchronised by an electric motor WO2021014061A1 (en)

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FR1908389A FR3099096B1 (en) 2019-07-24 2019-07-24 HYBRID POWER TRANSMISSION SYSTEM WITH GEAR CHANGE SYNCHONIZED BY AN ELECTRIC MOTOR
FR1908389 2019-07-24

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EP4265941A1 (en) * 2022-11-16 2023-10-25 Volvo Truck Corporation Gear selector drum arrangement

Citations (3)

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DE102010028936A1 (en) * 2010-05-12 2011-11-17 Zf Friedrichshafen Ag Method for operating a drive train
DE102011106019A1 (en) * 2011-06-30 2013-01-03 Volkswagen Aktiengesellschaft Powertrain portion for internal combustion engine of motor car, has gearbox with switch for actuation of switching elements, where force produced by machine is transferred to crankshaft or input element of switch, by coupling devices
EP3051183A1 (en) * 2015-01-28 2016-08-03 Magneti Marelli S.p.A. Management and control method of the gear change and starting phases of a vehicle fitted with an automated manual transmission and transmission and starting apparatus for vehicles fitted with automated manual transmissions

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010028936A1 (en) * 2010-05-12 2011-11-17 Zf Friedrichshafen Ag Method for operating a drive train
DE102011106019A1 (en) * 2011-06-30 2013-01-03 Volkswagen Aktiengesellschaft Powertrain portion for internal combustion engine of motor car, has gearbox with switch for actuation of switching elements, where force produced by machine is transferred to crankshaft or input element of switch, by coupling devices
EP3051183A1 (en) * 2015-01-28 2016-08-03 Magneti Marelli S.p.A. Management and control method of the gear change and starting phases of a vehicle fitted with an automated manual transmission and transmission and starting apparatus for vehicles fitted with automated manual transmissions

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