FR3131891A1 - METHOD FOR CONTROLLING A GEAR CHANGE ON A HYBRID VEHICLE POWERTRAIN - Google Patents

METHOD FOR CONTROLLING A GEAR CHANGE ON A HYBRID VEHICLE POWERTRAIN Download PDF

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Publication number
FR3131891A1
FR3131891A1 FR2200400A FR2200400A FR3131891A1 FR 3131891 A1 FR3131891 A1 FR 3131891A1 FR 2200400 A FR2200400 A FR 2200400A FR 2200400 A FR2200400 A FR 2200400A FR 3131891 A1 FR3131891 A1 FR 3131891A1
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France
Prior art keywords
gear
friction
torque
speed
electric machine
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Granted
Application number
FR2200400A
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French (fr)
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FR3131891B1 (en
Inventor
Jean-Pierre Cornu
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Stellantis Auto Sas Fr
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PSA Automobiles SA
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Priority to FR2200400A priority Critical patent/FR3131891B1/en
Priority to PCT/FR2022/052151 priority patent/WO2023139318A1/en
Publication of FR3131891A1 publication Critical patent/FR3131891A1/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
    • B60K6/38—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
    • B60K6/36—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
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—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
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • 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
    • 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
    • B60W10/115—Stepped gearings with planetary gears
    • 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
    • F16H3/006—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by either one of the parallel flow paths
    • 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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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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
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    • B60K6/48—Parallel type
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    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/06—Combustion engines, Gas turbines
    • B60W2710/0644—Engine speed
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/06—Combustion engines, Gas turbines
    • B60W2710/0666—Engine torque
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/08—Electric propulsion units
    • B60W2710/083—Torque
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/10—Change speed gearings
    • B60W2710/1005—Transmission ratio engaged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/42—Clutches or brakes
    • B60Y2400/428—Double clutch arrangements; Dual clutches
    • 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
    • F16H2003/0807—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 gear ratios in which the power is transferred by axially coupling idle gears
    • 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
    • F16H3/087—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 characterised by the disposition of the gears
    • F16H3/093—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 characterised by the disposition of the gears with two or more countershafts
    • F16H2003/0931—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 characterised by the disposition of the gears with two or more countershafts each countershaft having an output gear meshing with a single common gear on the output 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
    • F16H2200/0056—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising seven forward speeds

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Transmission Device (AREA)
  • Structure Of Transmissions (AREA)

Abstract

Procédé de contrôle d’un changement de rapport de vitesse d’un groupe motopropulseur d’un véhicule automobile hybride, comportant un moteur thermique (2) relié par un premier embrayage (C0) à une entrée de boîte de vitesses (6), une machine électrique (8) reliée directement à cette entrée de boîte de vitesses (6), l’entrée de boîte de vitesses (6) entraînant par un deuxième embrayage (C1), et par un train planétaire (18) disposé en parallèle et commandé par un frein (B), ce procédé comportant pour le passage de la sixième vitesse vers la septième vitesse, l’application d’un couple temporaire par la machine électrique pour passer de la sixième vitesse vers la cinquième vitesse, puis de la cinquième vitesse vers la septième vitesse. Figure 1Method for controlling a change in gear ratio of a powertrain of a hybrid motor vehicle, comprising a heat engine (2) connected by a first clutch (C0) to a gearbox input (6), a electric machine (8) connected directly to this gearbox input (6), the gearbox input (6) driving by a second clutch (C1), and by a planetary gear (18) arranged in parallel and controlled by a brake (B), this method comprising, for the passage from the sixth gear to the seventh gear, the application of a temporary torque by the electric machine to pass from the sixth gear to the fifth gear, then from the fifth gear to seventh gear. Figure 1

Description

PROCEDE DE CONTROLE D’UN CHANGEMENT DE RAPPORT SUR UN GROUPE MOTOPROPULSEUR DE VEHICULE HYBRIDEMETHOD FOR CHECKING A GEAR CHANGE ON A HYBRID VEHICLE POWERTRAIN

La présente invention concerne un procédé de contrôle d’un changement de rapport sur un groupe motopropulseur de véhicule automobile hybride, ainsi qu’un véhicule hybride comportant des dispositifs mettant en œuvre un tel procédé de contrôle.The present invention relates to a method for controlling a gear change on a powertrain of a hybrid motor vehicle, as well as a hybrid vehicle comprising devices implementing such a control method.

Un type de boîte de vitesses hybride connu, présenté notamment par le document FR-A1-3075117, comporte une entrée comprenant en parallèle un embrayage donnant une prise directe, et un train planétaire commandé par deux freins réalisant par leurs serrages deux rapports de réduction. L’embrayage et le train planétaire entraînent plusieurs trains d’engrenages sélectionnés par des systèmes d’engagement comportant des synchroniseurs, afin de réaliser sept rapports de vitesse de marche avant plus des rapports de marche arrière.A known type of hybrid gearbox, presented in particular by document FR-A1-3075117, comprises an input comprising in parallel a clutch giving direct engagement, and a planetary gear train controlled by two brakes producing two reduction ratios by their tightening. The clutch and planetary gear train drive several gear sets selected by engagement systems including synchronizers, to achieve seven forward speed ratios plus reverse gears.

En particulier à partir du roulage sur un rapport, en sélectionnant un rapport suivant par la synchronisation puis le verrouillage de son système d’engagement, puis par un croisement progressif du couple transféré d’une friction à une autre friction, l’embrayage ou les freins, on bascule progressivement le couple de l’une à l’autre en obtenant des passages sous couple entre ces deux rapports.In particular from rolling in a gear, by selecting a following gear by synchronizing then locking its engagement system, then by a progressive crossing of the torque transferred from one friction to another friction, the clutch or the brakes, we gradually switch the torque from one to the other by obtaining passages under torque between these two reports.

Ce type de boîte de vitesses peut réaliser des passages sous couple du premier au septième rapport de vitesse.This type of gearbox can perform torque shifts from first to seventh gear.

Toutefois dans le cas d’un véhicule hybride comportant une machine électrique de traction reliée à l’entrée de la boîte de vitesses, il est connu de disposer un premier embrayage entre le moteur thermique et l’entrée afin de permettre un roulage uniquement avec la machine électrique qui entraîne les roues motrices par la boîte de vitesses en laissant le moteur thermique à l’arrêt.However, in the case of a hybrid vehicle comprising an electric traction machine connected to the input of the gearbox, it is known to have a first clutch between the thermal engine and the input in order to allow driving only with the electric machine which drives the driving wheels by the gearbox while leaving the thermal engine stopped.

Dans ce cas il est connu d’utiliser un train planétaire avec un unique frein pour réaliser un seul rapport de réduction, afin de conserver seulement trois frictions sur la boîte de vitesses pour limiter sa complexité et son encombrement. Lors d’un roulage avec le moteur thermique, les passages de vitesse pour aller d’un rapport commandé par une friction à un rapport commandé par l’autre friction, par exemple de l’embrayage au frein, peuvent se faire en maintenant un couple sur les roues motrices grâce à un croisement progressif du couple entre ces deux frictions.In this case it is known to use a planetary train with a single brake to achieve a single reduction ratio, in order to maintain only three frictions on the gearbox to limit its complexity and bulk. When driving with the heat engine, gear changes to go from a report controlled by one friction to a report controlled by the other friction, for example from the clutch to the brake, can be done by maintaining a torque on the drive wheels thanks to a progressive crossing of the torque between these two frictions.

Cette disposition est importante pour les passages entre les premiers rapports de vitesse délivrant un couple élevé aux roues motrices, qu’il faut pouvoir maintenir sensiblement constant lors des changements pour limiter les fortes variations d’accélération du véhicule entraînant un inconfort.This arrangement is important for transitions between the first gear ratios delivering high torque to the drive wheels, which must be able to be kept substantially constant during changes to limit strong variations in vehicle acceleration causing discomfort.

Cependant on peut réaliser des boîtes de vitesses où pour simplifier son dessin, pour limiter en particulier le nombre de pignons et de dispositifs d’engagement, on utilise une même friction pour entraîner deux rapports supérieurs consécutifs. Pour un passage d’un de ces rapports à l’autre on a une ouverture de la friction entraînant ces rapports, et une rupture du couple transmis par le moteur thermique pendant le passage. Le véhicule passe alors d’une phase d’accélération, si elle est demandée par le conducteur, à une phase de léger freinage du véhicule dû aux différents frottements et pertes s’appliquant sur le véhicule pendant le changement de rapport, qui peut être perceptible et considéré comme peu confortable.However, we can produce gearboxes where, to simplify its design, to limit in particular the number of pinions and engagement devices, we use the same friction to drive two consecutive higher gears. For a transition from one of these gears to the other we have an opening of the friction driving these gears, and a break in the torque transmitted by the heat engine during the transition. The vehicle then goes from an acceleration phase, if requested by the driver, to a phase of slight braking of the vehicle due to the various frictions and losses applying to the vehicle during the gear change, which may be perceptible and considered uncomfortable.

La présente invention a notamment pour but d’éviter ces problèmes de l’art antérieur.The present invention aims in particular to avoid these problems of the prior art.

Elle propose à cet effet un procédé de contrôle d’un changement de rapport de vitesse d’un groupe motopropulseur d’un véhicule automobile hybride, comportant un moteur thermique relié par un premier embrayage à une entrée de boîte de vitesses, une machine électrique reliée directement à cette entrée de boîte de vitesses, l’entrée de boîte de vitesses entraînant par une première friction fermée, et par une deuxième friction fermée disposée en parallèle de la première friction, plusieurs rapports de vitesse commandés par des dispositifs d’engagement, la boîte de vitesses comportant un rapport initial entraîné par la deuxième friction, un rapport immédiatement précédent entraîné par la première friction et un rapport immédiatement suivant entraîné par la deuxième friction, ce procédé étant remarquable en ce que pour un passage du rapport initial au rapport suivant il effectue successivement les étapes suivantes :To this end, it proposes a method for controlling a change in gear ratio of a powertrain of a hybrid motor vehicle, comprising a thermal engine connected by a first clutch to a gearbox input, an electrical machine connected directly to this gearbox input, the gearbox input driving by a first closed friction, and by a second closed friction arranged in parallel to the first friction, several speed ratios controlled by engagement devices, the gearbox comprising an initial gear driven by the second friction, an immediately preceding gear driven by the first friction and an immediately following gear driven by the second friction, this method being remarkable in that for a change from the initial gear to the next gear it successively performs the following steps:

il bascule progressivement le couple du moteur thermique vers la machine électrique et ouvre le premier embrayage ;it gradually shifts the torque from the thermal engine to the electric machine and opens the first clutch;

il bascule le couple de la deuxième friction vers la première friction pour engager le rapport précédent en maintenant le roulage avec un couple aux roues délivré par la machine électrique ;it switches the torque from the second friction to the first friction to engage the previous gear while maintaining driving with a torque to the wheels delivered by the electric machine;

il configure les dispositifs d’engagement pour engager le rapport suivant, puis bascule le couple délivré par la machine électrique de la première friction vers la deuxième friction pour continuer le roulage sur ce rapport suivant ;it configures the engagement devices to engage the next gear, then switches the torque delivered by the electric machine from the first friction to the second friction to continue driving on this next gear;

pendant toutes ces étapes précédentes il pilote la vitesse du moteur thermique pour obtenir un changement progressif de son régime depuis celui correspondant au rapport initial vers celui correspondant au rapport final ; etduring all these previous stages it controls the speed of the heat engine to obtain a progressive change in its speed from that corresponding to the initial ratio to that corresponding to the final ratio; And

il ferme le premier embrayage et bascule le couple de la machine électrique vers le moteur thermique.it closes the first clutch and switches the torque from the electric machine to the thermal engine.

Un avantage de ce procédé est qu’on obtient une traction continue du véhicule sensiblement constante, en utilisant la machine électrique qui peut monter en régime en utilisant le rapport précédent sans que cela soit perceptible pour le conducteur, avant de remettre le couple du moteur thermique sur le rapport suivant, ce moteur ayant suivi une baisse régulière de son régime perceptible par le conducteur qui est normale dans le cas d’une montée d’un rapport.An advantage of this process is that continuous traction of the vehicle is obtained which is substantially constant, using the electric machine which can rev up using the previous gear without this being perceptible to the driver, before restoring the torque of the heat engine. on the next gear, this engine having followed a regular drop in its speed perceptible by the driver which is normal in the case of going up a gear.

Le conducteur obtient alors avec le moteur thermique le bruit attendu d’un changement de vitesse habituel, alors que la traction se fait temporairement uniquement par le moteur électrique, ce qui est rassurant et maintient un bon niveau de confort.The driver then obtains with the thermal engine the expected noise of a usual gear change, while traction is temporarily done only by the electric motor, which is reassuring and maintains a good level of comfort.

Le procédé de contrôle selon l’invention peut comporter de plus une ou plusieurs des caractéristiques suivantes, qui peuvent être combinées entre elles.The control method according to the invention may also include one or more of the following characteristics, which can be combined with each other.

En particulier la première friction peut être un frein agissant sur un train planétaire pour réaliser une démultiplication de la vitesse.In particular, the first friction can be a brake acting on a planetary train to achieve a reduction in speed.

En particulier la deuxième friction peut être un deuxième embrayage.In particular the second friction can be a second clutch.

En particulier le rapport initial peut être une sixième vitesse de la boîte de vitesses.In particular the initial gear can be a sixth gear of the gearbox.

Avantageusement, le pilotage de la vitesse du moteur thermique pour obtenir un changement progressif de son régime est fait suivant une pente constante.Advantageously, the speed of the heat engine is controlled to obtain a progressive change in its speed is done following a constant slope.

Avantageusement, le procédé de contrôle réalise une démarche similaire inversée pour un passage du rapport suivant au rapport initial, en utilisant un couple provisoire développé par la machine électrique pour passer du rapport suivant au rapport précédent, puis passer du rapport précédent au rapport initial, avec un changement progressif du régime du moteur thermique pendant ces passages depuis celui correspondant au rapport suivant vers celui correspondant au rapport initial.Advantageously, the control method performs a similar inverted approach for a change from the next report to the initial report, using a temporary torque developed by the electric machine to move from the next report to the previous report, then move from the previous report to the initial report, with a progressive change in the speed of the heat engine during these passages from that corresponding to the next report to that corresponding to the initial report.

Avantageusement, le procédé commande le couple délivré par la machine électrique pour obtenir un couple aux roues sensiblement constant pendant les changements de rapports.Advantageously, the method controls the torque delivered by the electric machine to obtain a substantially constant torque to the wheels during gear changes.

L’invention a aussi pour objet un véhicule automobile hybride comportant un moteur thermique et une machine électrique de traction reliés à l’entrée d’une boîte de vitesses, comportant des dispositifs mettant en œuvre un procédé de contrôle comprenant l’une quelconque des caractéristiques précédentes.The invention also relates to a hybrid motor vehicle comprising a heat engine and an electric traction machine connected to the input of a gearbox, comprising devices implementing a control method comprising any one of the characteristics previous ones.

L’invention sera mieux comprise et d’autres caractéristiques et avantages apparaîtront plus clairement à la lecture de la description ci-après donnée à titre d’exemple, en référence aux dessins annexés dans lesquels :The invention will be better understood and other characteristics and advantages will appear more clearly on reading the description below given by way of example, with reference to the appended drawings in which:

est un schéma en coupe axiale d’un groupe motopropulseur mettant en œuvre un procédé selon l’invention ; is an axial sectional diagram of a powertrain implementing a method according to the invention;

est un tableau montrant les états des frictions et des dispositifs d’engagement pour les différents rapports de vitesse de marche avant ; et is a table showing the states of friction and engagement devices for different forward speed ratios; And

est un diagramme présentant en fonction du temps différents paramètres lors du passage du sixième au septième rapport. is a diagram showing different parameters as a function of time when moving from sixth to seventh gear.

La présente un groupe motopropulseur comportant un moteur thermique 2 disposé axialement d’un côté appelé côté avant, entraînant par un premier embrayage C0 une entrée de boîte de vitesses 6 reliée en permanence par un train d’engrenages à une machine électrique de traction du véhicule 8.There presents a powertrain comprising a thermal engine 2 arranged axially on a side called the front side, driving by a first clutch C0 a gearbox input 6 permanently connected by a gear train to an electric traction machine of the vehicle 8 .

L’entrée de boîte de vitesses 6 est reliée par un deuxième embrayage C1 à un premier arbre primaire 12, et est reliée directement par un arbre axial 14 passant dans ce premier arbre primaire qui est creux, à une couronne extérieure 16 d’un train planétaire 18 disposé du côté arrière de la boîte.The gearbox input 6 is connected by a second clutch C1 to a first primary shaft 12, and is connected directly by an axial shaft 14 passing through this first primary shaft which is hollow, to an outer ring gear 16 of a train planetary 18 located on the rear side of the box.

Le train planétaire 18 comporte un pignon solaire 20 relié par l’intermédiaire d’un frein B au carter de la boîte de vitesses pour l’immobiliser, et un porte-satellites 24 relié vers l’avant en passant autour de la couronne 16 à un deuxième arbre primaire 26 entourant l’arbre axial 14.The planetary gear train 18 comprises a sun pinion 20 connected via a brake B to the gearbox housing to immobilize it, and a planet carrier 24 connected forwards passing around the crown 16 to a second primary shaft 26 surrounding the axial shaft 14.

Le premier embrayage C0 fermé permet avec la boîte de vitesses au point mort à la machine électrique 8 d’entraîner le moteur thermique 2 pour le démarrer, ou permet en engageant des rapports de vitesse de réaliser des roulages avec ce moteur thermique sur les différentes vitesses, la machine électrique pouvant ajouter un couple positif de traction du véhicule, ou négatif de freinage avec récupération d’énergie.The first closed clutch C0 allows, with the gearbox in neutral, the electric machine 8 to drive the heat engine 2 to start it, or allows by engaging gear ratios to carry out driving with this heat engine on the different speeds , the electric machine being able to add a positive traction torque to the vehicle, or a negative braking torque with energy recovery.

Le premier embrayage C0 ouvert permet de réaliser un roulage électrique avec l’un quelconque des rapports de la boîte de vitesses, en assurant une traction ou un freinage du véhicule.The first open C0 clutch allows electric driving with any of the gearbox ratios, ensuring traction or braking of the vehicle.

Le deuxième embrayage C1 fermé forme une prise directe d’entraînement du premier arbre primaire 12 tournant à la vitesse de l’entrée, et des rapports de la boîte de vitesses qui lui sont liés. Le frein B fermé immobilise le pignon solaire 20, et apporte une réduction de vitesse pour entraîner le deuxième arbre primaire 26.The second closed clutch C1 forms a direct drive of the first primary shaft 12 rotating at the input speed, and of the gearbox reports linked to it. The closed brake B immobilizes the sun pinion 20, and provides a speed reduction to drive the second primary shaft 26.

La boîte de vitesses comporte un premier arbre secondaire parallèle 32 comportant un premier pignon de sortie 30 engrenant avec la couronne d’un différentiel de sortie 34, et un deuxième arbre secondaire parallèle 36 comportant un deuxième pignon de sortie 38 engrenant avec la même couronne de différentiel.The gearbox comprises a first parallel secondary shaft 32 comprising a first output pinion 30 meshing with the crown of an output differential 34, and a second parallel secondary shaft 36 comprising a second output pinion 38 meshing with the same crown of differential.

Le premier arbre primaire 12 porte un premier pignon d’un couple de pignon de première et deuxième vitesse 40, le deuxième pignon étant libre sur le premier arbre secondaire 32, avec un premier dispositif d’engagement 42 comportant un synchroniseur et un crabot permettant de le lier avec cet arbre.The first primary shaft 12 carries a first pinion of a pair of first and second speed pinions 40, the second pinion being free on the first secondary shaft 32, with a first engagement device 42 comprising a synchronizer and a clutch allowing bind him with this tree.

L’extrémité arrière du premier arbre primaire 12 comporte un deuxième dispositif d’engagement 50 permettant de le lier à un premier pignon d’un couple de pignon de troisième et quatrième vitesse 52, le deuxième pignon étant libre sur le deuxième arbre secondaire 36, avec un troisième dispositif d’engagement 54 pour le lier avec cet arbre.The rear end of the first primary shaft 12 comprises a second engagement device 50 making it possible to connect it to a first pinion of a pair of third and fourth gear pinions 52, the second pinion being free on the second secondary shaft 36, with a third engagement device 54 to link it with this shaft.

L’extrémité avant du deuxième arbre primaire 26 comporte un quatrième dispositif d’engagement 60 permettant de le lier au premier pignon du couple de pignon de troisième et quatrième vitesse 52 ainsi qu’au deuxième dispositif d’engagement 50.The front end of the second primary shaft 26 comprises a fourth engagement device 60 allowing it to be linked to the first pinion of the third and fourth gear pair 52 as well as to the second engagement device 50.

Le deuxième arbre primaire 26 porte un premier pignon d’un couple de pignon de cinquième, sixième et septième vitesse 62, le deuxième pignon étant libre sur le premier arbre secondaire 30, avec un cinquième dispositif d’engagement 64 pour le lier avec cet arbre.The second primary shaft 26 carries a first pinion of a fifth, sixth and seventh gear pair 62, the second pinion being free on the first secondary shaft 30, with a fifth engagement device 64 to connect it with this shaft .

Le premier pignon du couple de pignon de troisième et quatrième vitesse 52 engrène avec un deuxième pignon 72 fixé sur un arbre parallèle 70, cet arbre portant un troisième pignon 68 qui engrène avec un quatrième pignon libre en rotation 74 porté par le deuxième arbre primaire 26, à l’avant de cet arbre. Un sixième dispositif d’engagement 66 disposé du côté avant du quatrième pignon 74, permet de le lier avec le deuxième arbre primaire 26.The first pinion of the third and fourth gear pair 52 meshes with a second pinion 72 fixed on a parallel shaft 70, this shaft carrying a third pinion 68 which meshes with a fourth free rotating pinion 74 carried by the second primary shaft 26 , at the front of this tree. A sixth engagement device 66 disposed on the front side of the fourth pinion 74 allows it to be linked with the second primary shaft 26.

Cette succession de pignons passant par l’arbre parallèle 70 donne une augmentation de vitesse entre le premier pignon du couple de pignon de troisième et quatrième vitesse 52 et le quatrième pignon libre 74, qui est disposée en série avec la sixième vitesse pour réaliser une surmultiplication de cette sixième vitesse donnant la septième vitesse.This succession of gears passing through the parallel shaft 70 gives an increase in speed between the first gear of the third and fourth gear pair 52 and the fourth free gear 74, which is arranged in series with the sixth gear to achieve overdrive of this sixth gear giving the seventh gear.

Les différents dispositifs d’engagement sont commandés par un manchon coulissant axialement, pouvant pour certains engager un dispositif d’engagement de chaque côté.The different engagement devices are controlled by an axially sliding sleeve, some of which can engage an engagement device on each side.

La présente pour les sept vitesses indiquées dans la première colonne, pour chaque colonne successivement les engagements du deuxième embrayage C1, du frein B, du premier dispositif d’engagement 42, du deuxième dispositif d’engagement 50, du troisième dispositif d’engagement 54, du quatrième dispositif d’engagement 60, du cinquième dispositif d’engagement 64 et du sixième dispositif d’engagement 66.There presents for the seven speeds indicated in the first column, for each column successively the engagements of the second clutch C1, of the brake B, of the first engagement device 42, of the second engagement device 50, of the third engagement device 54, of the fourth engagement device 60, the fifth engagement device 64 and the sixth engagement device 66.

La première vitesse utilise le frein B, le premier 42, le deuxième 50 et le quatrième 60 dispositif d’engagement qui sont fermés, le train planétaire 18 apportant une réduction de vitesse du deuxième arbre primaire 26. La deuxième vitesse nécessite un croisement du couple du frein B vers le deuxième embrayage C1, le premier arbre primaire 12 tournant à la vitesse de l’entrée 6. On a ensuite une ouverture du quatrième dispositif d’engagement 60 et du deuxième dispositif d’engagement 50.The first speed uses the brake B, the first 42, the second 50 and the fourth 60 engagement device which are closed, the planetary train 18 providing a speed reduction of the second primary shaft 26. The second speed requires a crossing of the torque from the brake B towards the second clutch C1, the first primary shaft 12 rotating at the speed of the input 6. We then have an opening of the fourth engagement device 60 and the second engagement device 50.

La troisième vitesse utilise le frein B, le troisième dispositif d’engagement 54 et le quatrième dispositif d’engagement 60. La quatrième vitesse utilise le deuxième embrayage C1, le deuxième dispositif d’engagement 50 et le troisième dispositif d’engagement 54.The third gear uses brake B, the third engagement device 54 and the fourth engagement device 60. The fourth gear uses the second clutch C1, the second engagement device 50 and the third engagement device 54.

La cinquième vitesse utilise le frein B et le cinquième dispositif d’engagement 64. La sixième vitesse utilise le deuxième embrayage C1, le deuxième dispositif d’engagement 50, le quatrième dispositif d’engagement 60 et le cinquième dispositif d’engagement 64.The fifth gear uses brake B and the fifth engagement device 64. The sixth gear uses the second clutch C1, the second engagement device 50, the fourth engagement device 60 and the fifth engagement device 64.

On notera que tous les passages de la première à la sixième vitesse se font en alternant la friction qui les commande, le frein B ou le deuxième embrayage C1, ce qui permet de faire ces passages avec un transfert continu du couple.Note that all shifts from first to sixth gear are made by alternating the friction which controls them, the brake B or the second clutch C1, which allows these shifts to be made with a continuous transfer of torque.

La septième vitesse utilise le deuxième embrayage C1, le deuxième dispositif d’engagement 50, le cinquième dispositif d’engagement 64 et le sixième dispositif d’engagement 66. On a donc les deux dernières vitesses sixième et septième utilisant la même friction, on ne peut passer de l’une à l’autre directement en maintenant un couple venant du moteur thermique 2.The seventh gear uses the second clutch C1, the second engagement device 50, the fifth engagement device 64 and the sixth engagement device 66. We therefore have the last two sixth and seventh gears using the same friction, we do not can go from one to the other directly while maintaining a torque coming from the heat engine 2.

L’ensemble du groupe motopropulseur est géré par un calculateur qui commande les différents actionneurs de la boîte de vitesses.The entire powertrain is managed by a computer which controls the various gearbox actuators.

La présente en fonction du temps t pour un changement de la sixième formant un rapport initial vers la septième vitesse formant un rapport suivant, successivement en partant du bas la position de la pédale d’accélérateur 80, la vitesse du véhicule 82, le rapport de boîte de vitesses 84, le régime du moteur thermique 86, le régime de l’entrée de boîte de vitesses 88 lié à celui de la machine électrique 8, le couple délivré par le moteur thermique 90 et celui délivré par la machine électrique sur l’entrée de boîte 92, et enfin l’accélération du véhicule 94.There present as a function of time t for a change from the sixth gear forming an initial gear to the seventh gear forming a subsequent gear, successively starting from the bottom the position of the accelerator pedal 80, the speed of the vehicle 82, the gear ratio speeds 84, the speed of the heat engine 86, the speed of the gearbox input 88 linked to that of the electric machine 8, the torque delivered by the heat engine 90 and that delivered by the electric machine on the input gearbox 92, and finally the acceleration of the vehicle 94.

Avant le temps initial t0 la pédale d’accélérateur 80 est au repos, la vitesse du véhicule 82 est stable, la boîte de vitesses est sur la sixième vitesse 6ème, les régimes du moteur thermique 86 et de l’entrée de boîte 88 sont identiques, correspondant à cette sixième vitesse, les deux embrayages C0, C1 étant fermés. Le couple du moteur thermique 90 est positif, celui de la machine électrique sur l’entrée de boîte 92 est nul, l’accélération du véhicule 94 est nulle aussi.Before the initial time t0 the accelerator pedal 80 is at rest, the speed of the vehicle 82 is stable, the gearbox is in sixth gear 6th , the speeds of the thermal engine 86 and of the gearbox input 88 are identical, corresponding to this sixth gear, the two clutches C0, C1 being closed. The torque of the thermal engine 90 is positive, that of the electric machine on the box input 92 is zero, the acceleration of the vehicle 94 is also zero.

Au temps initial t0 le conducteur enfonce la pédale d’accélérateur 80, on a une accélération du véhicule 94 qui est supposée constante pendant tout le changement de vitesse, la vitesse du véhicule 82 augmente suivant une pente constante, les régimes du moteur thermique 86 et de l’entrée de boîte 88 augmentent aussi de manière constante.At the initial time t0 the driver depresses the accelerator pedal 80, there is an acceleration of the vehicle 94 which is assumed to be constant throughout the gear change, the speed of the vehicle 82 increases along a constant slope, the speeds of the thermal engine 86 and of the box input 88 also increase constantly.

Au temps t1 le calculateur de gestion du groupe motopropulseur décide du passage vers la septième vitesse. On a alors un procédé comprenant du temps t1 au temps t2 une bascule progressive du couple du moteur thermique 90 vers celui de de la machine électrique sur l’entrée de boîte 92, tout en ouvrant le premier embrayage C0.At time t1 the powertrain management computer decides whether to move to seventh gear. We then have a process comprising from time t1 to time t2 a progressive shift of the torque of the thermal engine 90 towards that of the electric machine on the box input 92, while opening the first clutch C0.

On a ensuite du temps t2 au temps t3 une configuration des dispositifs d’engagement permettant de réaliser le passage vers la cinquième vitesse formant un rapport précédent.We then have from time t2 to time t3 a configuration of the engagement devices allowing the transition to the fifth gear forming a previous gear.

On a ensuite du temps t3 au temps t4 une bascule du couple du deuxième embrayage C1 vers le frein B qui engage la cinquième vitesse. La vitesse de l’entrée 88 augmente pour correspondre à celle de la cinquième vitesse, le couple sur cette entrée 92 diminue avec la machine électrique 8 délivrant moins de couple pour prendre en compte un rapport de démultiplication plus important de la cinquième.We then have from time t3 to time t4 a shift in the torque of the second clutch C1 towards the brake B which engages the fifth gear. The speed of input 88 increases to correspond to that of the fifth gear, the torque on this input 92 decreases with the electric machine 8 delivering less torque to take into account a greater gear ratio of the fifth.

On a ensuite du temps t4 au temps t5 une configuration des dispositifs d’engagement permettant de réaliser le passage vers la septième vitesse.We then have from time t4 to time t5 a configuration of the engagement devices allowing the transition to seventh gear.

On a ensuite du temps t5 au temps t6 une bascule du couple du frein B vers le deuxième embrayage C1 qui engage la septième vitesse. La vitesse de l’entrée 88 diminue, le couple sur cette entrée, délivré par la machine électrique 92 augmente pour compenser la démultiplication qui est plus faible.We then have from time t5 to time t6 a shift in the torque of brake B towards the second clutch C1 which engages the seventh gear. The speed of input 88 decreases, the torque on this input, delivered by the electric machine 92 increases to compensate for the reduction which is lower.

Pendant toutes ces étapes précédentes le calculateur pilote la vitesse du moteur thermique 86 pour obtenir du temps t1 au temps t6 une baisse progressive suivant une pente constante de son régime, afin de l’amener à celui prévu pour la septième vitesse.During all these previous steps, the computer controls the speed of the thermal engine 86 to obtain from time t1 to time t6 a progressive decrease following a constant slope of its speed, in order to bring it to that planned for the seventh gear.

On a ensuite du temps t6 au temps t7 une fermeture du premier embrayage C0, le moteur thermique 2 étant déjà synchronisé à la bonne vitesse.We then have from time t6 to time t7 a closing of the first clutch C0, the heat engine 2 already being synchronized at the correct speed.

On a enfin du temps t7 au temps t8 une bascule du couple délivré sur l’entrée par la machine électrique 92 qui diminue, vers un couple délivré par le moteur thermique 90 qui augmente pour atteindre la même valeur.Finally, from time t7 to time t8, we have a shift in the torque delivered at the input by the electric machine 92 which decreases, towards a torque delivered by the thermal engine 90 which increases to reach the same value.

On notera que le couple délivré par la machine électrique sur l’entrée 92 compensant la perte de couple délivré par le moteur thermique 90 en prenant en compte la vitesse engagée, on obtient aux roues un couple constant pendant tout le changement de la sixième vers la septième vitesse qui assure le confort.It will be noted that the torque delivered by the electric machine on input 92 compensates for the loss of torque delivered by the thermal engine 90 by taking into account the engaged speed, a constant torque is obtained at the wheels throughout the change from sixth gear to gear. seventh gear which ensures comfort.

De plus on obtient pendant ce changement de vitesse une baisse régulière du régime du moteur thermique 86 entendu par le conducteur, alors que la montée du régime de la machine électrique 88 n’est sensiblement pas perceptible, qui rassure le conducteur et assure aussi le confort.In addition, during this gear change we obtain a regular drop in the speed of the thermal engine 86 heard by the driver, while the increase in the speed of the electric machine 88 is not noticeably perceptible, which reassures the driver and also ensures comfort. .

Pour une descente de la septième vitesse 7èmevers la sixième vitesse 6ème,le procédé réalise une démarche similaire inversée en utilisant un couple provisoire développé par la machine électrique 8 pour passer par la cinquième vitesse 5ème, puis passer de cette cinquième à la sixième, avec un changement progressif du régime du moteur thermique 2 pendant ces passages depuis celui correspondant à la septième vers celui correspondant à la sixième.For a descent from the seventh 7th gear to the sixth 6th gear , the process carries out a similar inverted approach using a temporary torque developed by the electric machine 8 to pass through the fifth 5th gear, then go from this fifth to the sixth, with a progressive change in the speed of the thermal engine 2 during these passages from that corresponding to the seventh to that corresponding to the sixth.

Claims (8)

Procédé de contrôle d’un changement de rapport de vitesse d’un groupe motopropulseur d’un véhicule automobile hybride, comportant un moteur thermique (2) relié par un premier embrayage (C0) à une entrée de boîte de vitesses (6), une machine électrique (8) reliée directement à cette entrée de boîte de vitesses (6), l’entrée de boîte de vitesses (6) entraînant par une première friction fermée (B), et par une deuxième friction fermée (C1) disposée en parallèle de la première friction (B), plusieurs rapports de vitesse commandés par des dispositifs d’engagement, la boîte de vitesses comportant un rapport initial (6ème) entraîné par la deuxième friction (C1), un rapport immédiatement précédent (5ème) entraîné par la première friction (B) et un rapport immédiatement suivant (7ème) entraîné par la deuxième friction (C1), caractérisé en ce que pour un passage du rapport initial (6ème) au rapport suivant (7ème) il effectue successivement les étapes suivantes :
il bascule progressivement le couple du moteur thermique (2) vers la machine électrique (8) et ouvre le premier embrayage (C0) ;
il bascule le couple de la deuxième friction (C1) vers la première friction (B) pour engager le rapport précédent (5ème) en maintenant le roulage avec un couple aux roues délivré par la machine électrique (8) ;
il configure les dispositifs d’engagement pour engager le rapport suivant (7ème), puis bascule le couple délivré par la machine électrique (8) de la première friction (B) vers la deuxième friction (C1) pour continuer le roulage sur ce rapport suivant (7ème) ;
pendant toutes ces étapes précédentes il pilote la vitesse du moteur thermique (2) pour obtenir un changement progressif de son régime depuis celui correspondant au rapport initial (6ème) vers celui correspondant au rapport final (7ème) ; et
il ferme le premier embrayage (C0) et bascule le couple de la machine électrique (8) vers le moteur thermique (2).Method for controlling a change in gear ratio of a powertrain of a hybrid motor vehicle, comprising a thermal engine (2) connected by a first clutch (C0) to a gearbox input (6), a electric machine (8) connected directly to this gearbox input (6), the gearbox input (6) driving by a first closed friction (B), and by a second closed friction (C1) arranged in parallel of the first friction (B), several speed ratios controlled by engagement devices, the gearbox comprising an initial ratio ( 6th ) driven by the second friction (C1), an immediately preceding ratio ( 5th ) driven by the first friction (B) and an immediately following gear ( 7th ) driven by the second friction (C1), characterized in that for a passage from the initial gear ( 6th ) to the next gear ( 7th ) it successively performs the following steps :
it gradually switches the torque of the thermal engine (2) towards the electric machine (8) and opens the first clutch (C0);
it switches the torque from the second friction (C1) to the first friction (B) to engage the previous gear ( 5th ) while maintaining driving with a torque to the wheels delivered by the electric machine (8);
it configures the engagement devices to engage the next gear ( 7th ), then switches the torque delivered by the electric machine (8) from the first friction (B) to the second friction (C1) to continue driving on this gear next ( 7th );
during all these previous stages it controls the speed of the thermal engine (2) to obtain a progressive change in its speed from that corresponding to the initial gear ( 6th ) to that corresponding to the final gear ( 7th ); And
it closes the first clutch (C0) and switches the torque from the electric machine (8) to the thermal engine (2). Procédé de contrôle selon la revendication 1, caractérisé en ce la première friction (B) est un frein agissant sur un train planétaire (18) pour réaliser une démultiplication de la vitesse.Control method according to claim 1, characterized in that the first friction (B) is a brake acting on a planetary train (18) to achieve a reduction in speed. Procédé de contrôle selon la revendication 1 ou 2, caractérisé en ce la deuxième friction (C1) est un deuxième embrayage.Control method according to claim 1 or 2, characterized in that the second friction (C1) is a second clutch. Procédé de contrôle selon l’une quelconque des revendications précédentes, caractérisé en ce que le rapport initial (6ème) est une sixième vitesse de la boîte de vitesses.Control method according to any one of the preceding claims, characterized in that the initial gear ( 6th ) is a sixth gear of the gearbox. Procédé de contrôle selon l’une quelconque des revendications précédentes, caractérisé en ce que le pilotage de la vitesse du moteur thermique (2) pour obtenir un changement progressif de son régime est fait suivant une pente constante.Control method according to any one of the preceding claims, characterized in that the control of the speed of the heat engine (2) to obtain a progressive change in its speed is done following a constant slope. Procédé de contrôle selon l’une quelconque des revendications précédentes, caractérisé en ce qu’il réalise une démarche similaire inversée pour un passage du rapport suivant (7ème) au rapport initial (6ème), en utilisant un couple provisoire développé par la machine électrique (8) pour passer du rapport suivant (7ème) au rapport précédent (5ème), puis passer du rapport précédent (5ème) au rapport initial (6ème), avec un changement progressif du régime du moteur thermique (2) pendant ces passages depuis celui correspondant au rapport suivant (7ème) vers celui correspondant au rapport initial (6ème).Control method according to any one of the preceding claims, characterized in that it carries out a similar inverted approach for a change from the next gear ( 7th ) to the initial gear ( 6th ), using a temporary torque developed by the machine electric (8) to go from the next gear ( 7th ) to the previous gear ( 5th ), then go from the previous gear ( 5th ) to the initial gear ( 6th ), with a progressive change in the speed of the thermal engine (2) during these passages from that corresponding to the next gear ( 7th ) to that corresponding to the initial gear ( 6th ). Procédé de contrôle selon l’une quelconque des revendications précédentes, caractérisé en ce qu‘il commande le couple délivré par la machine électrique (8) pour obtenir un couple aux roues (94) sensiblement constant pendant les changements de rapports.Control method according to any one of the preceding claims, characterized in that it controls the torque delivered by the electric machine (8) to obtain a torque at the wheels (94) which is substantially constant during gear changes. Véhicule automobile hybride comportant un moteur thermique (2) et une machine électrique de traction (8) reliés à l’entrée d’une boîte de vitesses, caractérisé en ce qu’il comporte des dispositifs mettant en œuvre un procédé de contrôle selon l’une quelconque des revendications précédentes.Hybrid motor vehicle comprising a thermal engine (2) and an electric traction machine (8) connected to the input of a gearbox, characterized in that it comprises devices implementing a control method according to any of the preceding claims.
FR2200400A 2022-01-18 2022-01-18 METHOD FOR CONTROLLING A GEAR CHANGE ON A HYBRID VEHICLE POWERTRAIN Active FR3131891B1 (en)

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PCT/FR2022/052151 WO2023139318A1 (en) 2022-01-18 2022-11-22 Method for controlling a gear change on a powertrain for a hybrid vehicle

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DE112016003361T5 (en) * 2015-09-30 2018-04-05 Aisin Aw Co., Ltd. CONTROL DEVICE
FR3075117A1 (en) 2017-12-19 2019-06-21 Psa Automobiles Sa GEARBOX WITH A CLUTCH AND A PLANETARY TRAIN WITH TWO INPUT REPORTS

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DE2247031A1 (en) 1972-09-26 1974-04-04 Wacker Chemie Gmbh PROCESS FOR COLORING CELLULOSIDIC, AMINO AND AMIDE GROUP-CONTAINING MATERIALS AND POLYACRYLNITRILE FIBER MATERIAL

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US20160355173A1 (en) * 2014-03-05 2016-12-08 Aisin Aw Co., Ltd. Control device for vehicle driving device
DE112016003361T5 (en) * 2015-09-30 2018-04-05 Aisin Aw Co., Ltd. CONTROL DEVICE
US20170101101A1 (en) * 2015-10-08 2017-04-13 Hyundai Motor Company Control method of dual clutch transmission for hybrid electric vehicle and control system for the same
FR3075117A1 (en) 2017-12-19 2019-06-21 Psa Automobiles Sa GEARBOX WITH A CLUTCH AND A PLANETARY TRAIN WITH TWO INPUT REPORTS

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