WO2020119928A1 - Transmission arrangement for a hybrid drive - Google Patents
Transmission arrangement for a hybrid drive Download PDFInfo
- Publication number
- WO2020119928A1 WO2020119928A1 PCT/EP2018/085052 EP2018085052W WO2020119928A1 WO 2020119928 A1 WO2020119928 A1 WO 2020119928A1 EP 2018085052 W EP2018085052 W EP 2018085052W WO 2020119928 A1 WO2020119928 A1 WO 2020119928A1
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- WO
- WIPO (PCT)
- Prior art keywords
- gear
- clutch
- drive
- superposition
- differential
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
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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
- B60K1/00—Arrangement or mounting of electrical propulsion units
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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
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/04—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for differential gearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
- B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
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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
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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
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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
- B60K6/40—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
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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
- 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
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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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/12—Conjoint control of vehicle sub-units of different type or different function including control of differentials
- B60W10/16—Axle differentials, e.g. for dividing torque between left and right wheels
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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
- 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
- B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
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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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/001—Arrangement or mounting of electrical propulsion units one motor mounted on a propulsion axle for rotating right and left wheels of this axle
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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
- B60K2006/381—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches characterized by driveline brakes
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- 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
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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
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/04—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for differential gearing
- B60K2023/046—Axle differential locking means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Definitions
- the invention relates to a transmission arrangement for a hybrid drive for a motor vehicle with an internal combustion engine and an electrical machine.
- the hybrid powertrain includes an internal combustion engine, an electric machine, and a speed change device with a planetary gear.
- the planetary gear comprises a sun gear and a ring gear, each of which can be coupled to the motor shaft of the internal combustion engine via a controllable coupling.
- the planet carrier of the first planetary gear is drive-connected to the ring gear of a second planetary gear arranged on a parallel axis.
- the second planetary gear includes a second sun gear, second planet gears and a second planet carrier which is drive-connected to a differential gear of a vehicle axle.
- the electrical machine is drive-connected to the second sun gear.
- a clutch is provided with which the second sun gear and the second ring gear can be locked together in order to drive the vehicle axle either solely by means of the electrical machine or together with the internal combustion engine.
- a transmission arrangement for a hybrid vehicle with an internal combustion engine and an electrical machine wherein a first drive torque of the internal combustion engine and a second drive torque of the electrical machine can be transmitted to at least one drive shaft of the hybrid vehicle via the transmission arrangement.
- the gear arrangement has a first planetary gear with a first sun gear, first ring gear, a first planet carrier and first planet gears.
- the first ring gear is drive-connected to the internal combustion engine
- the first sun gear is drive-connected to the electrical machine
- the first planet carrier is drive-connected to a second planet carrier of a second planetary gear set downstream in the power path.
- the second planetary gear has two sun gears, which mesh with planet gears arranged on the second planet carrier, of which one sun gear can be supported on a stationary component via a clutch, and the other sun gear is drive-connected to a downstream differential gear.
- a drive arrangement for a motor vehicle which has an internal combustion engine, a step transmission unit, an electrical machine, a planetary gear unit with a switching device, and a differential gear unit.
- the planetary gear unit comprises a planet carrier that can be driven by the electrical machine, several planet gears rotating with the planet carrier, and two sun gears that are drive-connected to the planet gears.
- One of the two sun gears is drive-connected to the downstream differential gear unit.
- the other sun gear can be converted into several switching states by means of the switching device, the sun gear being supported in the first direction on a fixed component in the direction of rotation, being drive-connected to the differential gear unit in a second position and being able to rotate freely in a third position.
- An electric drive for a motor vehicle is known from WO 2012/007031 A1, which comprises an electric motor and a gear unit.
- the gear unit has a planetary gear and a differential gear, which are arranged coaxially to one another.
- a clutch is provided which can be transferred to three shift positions, namely two different shift stages and an idle position.
- Internal combustion engines and electrical machines have different speed ranges and different efficiency ranges.
- the drive arrangements must be able to provide a suitable operating mode in a wide variety of driving conditions - for example a wheel slip situation with different grip conditions on the wheels up to the maximum vehicle speed. Because of the different properties, there is the problem in hybrid vehicles which have an internal combustion engine and an electrical machine for jointly driving a drive axle that the drive arrangements do not enable an efficient operating mode for all driving conditions.
- a transmission arrangement for a hybrid drive with an internal combustion engine and an electrical machine comprising: a first transmission unit for the internal combustion engine; a second gear unit for the electrical machine; a superposition gear with a first input part, which is drive-connected to the first gear unit, a two-th input part, which is drive-connected to the second gear unit, and an output part, the first input part, the second input part and the output part having a compensating effect with one another ; a differential gear unit with a differential cage which is drive-connected to the output part of the superposition gear, and a first differential output part for driving a first drive shaft and a second differential output part for driving a second drive shaft; and a controllable locking device which is designed to selectively lock the differential carrier, so that a rotary motion introduced by the first or second gear unit into the superposition gear can be transmitted to the other gear unit, or to release the differential carrier.
- An advantage of the transmission arrangement is that it enables several operating modes for the most efficient operation of the motor vehicle.
- a direct drive connection between the internal combustion engine and the electrical machine can be established by locking the differential carrier.
- This advantageously enables the internal combustion engine to drive the electrical machine, so that the latter - especially when the battery is empty - can convert mechanical energy into electrical energy in generator operation and recharge the battery.
- a reverse operating mode enables the electrical machine to be operated as a starter in order to drive the internal combustion engine.
- the differential carrier is held in a rotationally fixed manner, if necessary, by means of the locking device. In this way, a degree of freedom of the superposition gear is fixed, i.e.
- a torque introduced into the superposition gear from the internal combustion engine via the first gear or from the electric machine via the second gear into the superposition gear is supported on the rotationally fixed differential cage and on the other machine transfer.
- a further advantage is that, in the locked state, all of the parts connected to the differential cage are supported in the direction of rotation, that is to say are held in a rotationally fixed manner. If this is the case, the locking device in the closed state also functions as a parking lock.
- Individual elements of the transmission arrangement are each drive-connected to other elements for the transmission of torque.
- the formulation should be able to be driven in rotation or connected to the drive in each case to include the possibility that one or more further elements in the power path can be interposed between a driving element and the element driven in rotation by it.
- one or more clutches can be interposed between the input part of the first gear unit and the superposition gear, which can optionally produce or interrupt a torque transmission.
- the locking device is preferably designed or arranged such that it can selectively lock or unlock the differential carrier. This excludes the Possibility with a that a component connected to the differential carrier, in particular also the output part of the superposition gear, can be selectively locked or released by means of the locking device.
- the non-rotatable support can take place against a stationary component, for example a gear housing or an element connected to it. In the released state, the differential cage is uncoupled, so that a rotary movement introduced into the differential cage is transmitted to that of the output shafts.
- the locking device comprises a form-locking clutch, the output part of the superposition gear being held in a rotationally fixed manner in a first coupling position of the form-locking coupling, and being freely rotatable in a second coupling position.
- the form-fitting clutch can have a first coupling part which is connected in a rotationally fixed and axially movable manner to a stationary component, for example a housing part of the transmission housing, and a second coupling part which is connected in a rotationally fixed manner to the differential carrier.
- a particularly electrohydraulic actuating device is provided for actuating the form-fitting coupling.
- the actuating device can be designed as a professionally constructed and robust on-off actuation.
- the actuating device can have a hydraulically movable piston which is connected to the first coupling part and acts upon it in the closing direction when the device is actuated.
- a return spring can be provided, which is installed in such a way that it acts on the first coupling part away from the second coupling part.
- other actuating devices such as electromechanical or electromagnetic devices, can also be used.
- the output part of the superposition gear can be fixedly connected to the differential cage, in particular be designed in one piece with it.
- the superposition gear output part and the differential carrier can also be produced as separate parts and subsequently connected to one another.
- a controllable clutch arrangement can be provided between one of the input parts, that is to say the first or second input part, and the output part of the superposition gear.
- the clutch arrangement comprises a form-locking coupling with a clutch input part, which is non-rotatably connected to an input part of the superposition gear, and a clutch output part, which is non-rotatably connected to the output part.
- the two coupling parts can be directly or indirectly brought into positive engagement with one another via a coupling element or can be disengaged from one another.
- the coupling arrangement further comprises an in particular electrohydraulic actuating device, wherein electromechanical or electromagnetic devices can also be used.
- the actuation device can be designed as an on-off actuation.
- the actuating device can have a hydraulically movable piston which is connected to an axially movable coupling part and opens when it is actuated in the closing direction.
- a return spring can be provided to reopen the clutch or retract the piston.
- the first transmission unit is designed as a multi-speed transmission.
- the multi-speed transmission is designed to transmit a rotary movement initiated by the combustion engine with various possible gear ratios in slow motion to the superposition gear.
- the multi-speed transmission can have a transmission ratio of between 1.8 and 3.0.
- the multi-speed transmission can in particular have a planetary gear, with a first sun gear, a first ring gear, at least a first planet gear and a first planet carrier.
- the sun gear can be drive-connected to the drive part of the internal combustion engine, while the planet carrier the superposition gear can be connected to the drive.
- a spur gear can be interposed between the tarpaulin gear and the superposition gear.
- the first transmission unit can be designed as a two-speed transmission, a controllable clutch arrangement being arranged between the ring gear and the sun gear in order to selectively realize a translation with a first transmission ratio or a second transmission ratio.
- the controllable clutch assembly may include a friction clutch and a one-way clutch.
- the ring gear of the planetary gear can be rotatably mounted on a stationary housing Ge, the one-way clutch is provided to selectively allow or separate torque transmission from the ring gear to the housing.
- the friction clutch is particularly intended to transmit torque between the ring gear and the sun gear.
- an electrohydraulic actuation unit can be provided, which is designed such that it can transmit the transmissible torque continuously between an open position and a closed position by appropriate regulation of the hydraulic pressure.
- a first gear ratio is achieved in that the one-way clutch connects the ring gear to the housing in a rotationally fixed manner, while the friction clutch is open, so that the sun gear can rotate with respect to the ring gear. The rotary motion of the sun gear is thus transmitted to the planet carrier via the planet gears rotating around it.
- the planetary gear acts as a reduction gear, which translates a rotary movement from fast to slow.
- the one-way clutch separates the ring gear from the housing, so that the ring gear is rotatable.
- a torque can be transmitted from the sun gear to the ring gear by means of the friction clutch.
- the friction clutch is fully closed, the sun gear and the ring gear rotate together, so that the planetary gear is blocked.
- the rotation of the ring gear or sun gear is thus Transfer ten gears that cannot rotate around the sun gear to the planet carrier.
- the speeds of the sun gear, ring gear and planet carrier are thus identical.
- the first transmission unit can be designed as a four-speed transmission, which in particular can comprise a Ravigneaux set.
- a Ravigneaux set is a double planetary gear set with a first sun gear, hereby meshing first planet gears, a second sun gear and hereby meshing the second planet gears, a planet carrier that carries the first and second planet gears, and a ring gear that meshes with the second planet gears Interlocking is.
- the various gear ratios are achieved by driving or coupling certain links of the Ravigneaux set or blocking the entire planetary gear set.
- two or more controllable coupling arrangements can be provided in particular.
- a first controllable clutch arrangement can be provided, for example, between the planet carrier and one of the two sun gears in order to selectively allow or separate a torque transmission between the links mentioned.
- a second controllable clutch arrangement can be provided, for example, between the other sun gear and a stationary component in order to selectively allow or separate torque transmission between the second sun gear and the stationary component, so that the second sun gear can be freely rotated.
- a clutch arrangement as described above in connection with the two-speed transmission, with one-way clutch and friction clutch can be provided, for example functionally between the first transmission drive part and the planet carrier.
- the output of the double planetary gear can, for example, via the ring gear gene, which is drive-connected to the first input part of the superposition gear.
- the first input part of the superposition gear can be rotatably mounted on the differential carrier.
- the Schmidtlagerungsge gear can be designed as a planetary gear with the elements ring gear, sun gear, planet gears and planet carriers.
- the first input part can, for example the ring gear and the second input part can be, for example, the sun gear of the tarpaulin, and a reverse assignment is also possible.
- the second input part of the superposition gear can be connected in a rotationally fixed manner to a hollow shaft of the second gear unit, wherein the hollow shaft can be arranged coaxially with the differential cage. In this way, an output shaft of the differential gear unit may extend through the hollow shaft of the second gear unit.
- the second gear unit can, for example, be designed as a spur gear or traction mechanism gearbox, or can comprise such a gearbox.
- the above-mentioned object is further achieved by a drive arrangement with an internal combustion engine, an electrical machine and with a transmission arrangement, which is designed according to at least one of the above-mentioned embodiments.
- the first drive part of the transmission arrangement is connected to a motor shaft of the internal combustion engine.
- the second drive part of the gear arrangement is connected to a motor shaft of the electrical machine.
- the electrical machine and / or the internal combustion engine can be controlled by means of power electronics, such as a pulse-controlled inverter, with an integrated electronic control unit (ECU).
- ECU integrated electronic control unit
- To power the electrical machine it can be connected to a battery.
- the electrical machine can have a stator which is connected to a housing part of the drive arrangement and a rotor with a motor shaft connected to it.
- the electrical machine converts energy and can work as a motor or generator.
- the electrical machine converts electrical energy into mechanical energy, so that the drive axle of the motor vehicle can be driven. This can be done in a superimposed manner together with the internal combustion engine, or as a sole drive.
- generator mode the electrical machine converts mechanical energy into electrical energy, which can then be stored in the battery.
- the mechanical energy can be introduced, for example, from the internal combustion engine when the superposition gear output part is held in a rotationally fixed manner, or from the vehicle axle in order to close it brake, the superposition gear output part or the differential basket must be freely rotatable for this.
- the recovery of braking energy from the motor vehicle is also referred to as recuperation.
- FIG. 1 shows a transmission arrangement for a hybrid drive of a motor vehicle in a first embodiment with a two-speed transmission in longitudinal section
- Figure 2 shows a transmission arrangement for a hybrid drive of a motor vehicle in egg ner second embodiment with four-speed transmission in longitudinal section;
- Figure 3 shows a transmission arrangement for a hybrid drive of a motor vehicle in egg ner another embodiment with four-speed transmission in longitudinal section.
- FIG. 1 shows a transmission arrangement 2 for a hybrid vehicle, which has an internal combustion engine and an electrical machine for driving a driving axle.
- the transmission arrangement 2 is designed to transmit a first drive torque from the internal combustion engine and / or a second drive torque from the electrical machine to a drive axle of the vehicle.
- the gear arrangement 2 has a first gear unit 3 assigned to the internal combustion engine, a second gear unit 4 assigned to the electrical machine, a superposition gear 5 with a first input part 6, which is connected to the first gear unit 3, a second input part 7, which is connected to the second gear unit 4 is connected, and an output part 8, which is connected to a differential gear 9 downstream in the power path.
- a first drive part 10 of the first gear unit 3 is arranged on a first axis of rotation A1
- a second drive part 11 of the second gear unit 4 is arranged on a second axis of rotation A2
- the superposition gear 5 is arranged on a third axis of rotation A3.
- the axes of rotation A1, A2, A3 run parallel to one another, although other constructions or arrangements are also possible.
- the first gear unit 3 is designed in the present embodiment as a two-speed gearbox in order to transmit a rotary movement initiated by the internal combustion engine via the first drive part 10 with different gear ratios to slow speed on the superposition gear 5.
- the gear unit 3 comprises a planetary gear 12 with a clutch arrangement 13 and a spur gear 14 arranged in the power path between the planetary gear 12 and the superposition gear 5.
- the planetary gear 12 has a sun gear 15 on the first axis of rotation A1, a ring gear 16 arranged coaxially with the sun gear 15, several Pla netenheels 17, which are in engagement with the sun gear and the ring gear, and a planet carrier 18 on which the planet gears are rotatably mounted.
- the sun wheel 15 is connected to the drive part 10 and thus serves as an input for transferring a rotary movement from the internal combustion engine.
- the planet carrier 18 is rotatably connected to a first spur gear 19 of the spur gear 14.
- the first spur gear 19 meshes with a second spur gear 20, which in turn is in engagement with the first input part 6 of the superposition gear 5.
- the planetary gear 12 and the spur gear 14 form a first power path to initiate a first rotary motion in the superposition gear 5.
- the spur gear 14 bridges the center distance between the first and third axes of rotation A1, A3.
- the controllable clutch arrangement 13 is functionally arranged between the ring gear 16 and the drive part 10 or the sun gear 18 connected thereto, in order to selectively realize a translation with a first transmission ratio or a second transmission ratio.
- the controllable clutch arrangement 13 comprises a friction clutch 22, which can be actuated by means of an actuation supply unit 23, and a one-way clutch 24.
- the ring gear 16 is rotatably supported in the housing 21 about the axis of rotation A1 via bearing means 25, 25 ′.
- the one-way clutch 24 is designed to selectively connect the ring gear 16 to the housing 21 in a rotationally fixed manner or to decouple it from the latter.
- the friction clutch 22 is provided for torque between a first rotationally fixedly connected to the first drive part 10 or sun gear 18 Coupling part 26 and a second coupling part 27 connected to the ring gear 16 in the rotational test.
- the friction clutch 22 has a disk set 28 which can be acted upon axially by the actuating unit 23.
- the disk set 28 comprises first disks rotatably connected and axially movably connected to the first clutch part 26 and second disks connected to the second clutch part 27 rotatably and axially movably, which are in particular arranged axially alternately.
- the disk pack 28 can be acted upon by a pressure plate 29 which can be acted upon by the actuating device 23.
- the actuating device 23 for the friction clutch 22 is designed here as an electrohydraulic actuating device.
- the actuating device comprises a piston 30, which is seated in a cylinder chamber 31 in a housing part 32 and can be moved by applying a hydraulic pressure.
- the piston 30 acts via an axial bearing 34 on the pressure plate 29 which acts on the disk pack 28.
- the clutch 22 is actuated in the closing direction.
- the transferable clutch torque can be variably adjusted between a fully closed clutch position and a fully open clutch position by appropriately controlling the hydraulic pressure as required. In this way, a load switchability of the first gear unit 3 or the gear arrangement 2 is made possible.
- a return spring can be provided, which strikes the piston 30 again in the retracted position, so that the disk set 28 is released again.
- the actuating device 23 is controlled by an electronic control unit (ECU), which can also be used to control the electric motor and / or the internal combustion engine.
- ECU electronice control unit
- the speed of the electric motor and / or the internal combustion engine and / or the wheels can be recorded as further input variables for the electronic control unit and passed on to them.
- a first transmission stage of the first gear unit 3 is realized by the free-running clutch 24 connecting the ring gear 16 in a rotationally fixed manner to the housing 21, while the friction clutch 22 is open.
- the sun gear 18 can thus rotate with respect to the ring gear 16, the rotational movement of the sun gear 18 over that around revolving planet gears 17 is transmitted to the planet carrier 18.
- the planetary gear 12 acts as a reduction gear that translates a rotary movement from fast to slow with a first gear ratio.
- the one-way clutch 24 separates the second coupling part 26 or the ring gear 16 connected to it from the housing 21, so that the ring gear 16 can rotate freely.
- a torque can be transmitted to the ring gear 16 from the drive part 10 via the friction clutch 22.
- the sun gear 15 and the ring gear 16 rotate together, so that the planetary gear 12 is blocked.
- the rotary movement of the ring gear 16 or sun gear 15 is transmitted to the planet carrier 18 via the planet gears 17, which cannot rotate around the sun gear.
- the speeds of the sun gear, ring gear and the planet carrier are thus identical, so that the second ratio of the planetary gear is one.
- the second gear unit 4 is designed in the present embodiment as a spur gear which translates a rotary movement initiated by the electrical machine into the second drive part 11 from fast to slow.
- the spur gear 14 has a first transmission stage with a first drive gear 40 and an intermediate gear 42 which is non-rotatably connected to an intermediate shaft 41 and which mesh with one another.
- First drive wheel 40 and first intermediate wheel 41 form a first gear set with a first gear ratio.
- the second transmission stage comprises a second intermediate gear 43 connected to the intermediate shaft 41 and a second drive gear 44 meshing therewith, which is firmly connected to a hollow shaft 45, in particular is designed in one piece with the latter.
- Second intermediate gear 43 and second drive gear 44 form a second gear set with a second gear ratio.
- the second drive part 1 1, the intermediate shaft 41 and the hollow shaft 45 are over ent speaking bearing means 46, 46 '; 47, 47 ', 48, 48' rotatably mounted on mutually parallel axes of rotation A2, A5, A3 in the housing 21, with another arrangement being conceivable.
- the hollow shaft 45 is coaxial with the output part 8 of the superposition gear 5 or the differential cage connected to it and carries at its differential end the second input part 7 of the superposition gear 5.
- the superposition gear 5 is designed here as a planetary gear, with a sun gear 50, a ring gear 51 arranged coaxially to the sun gear, a plurality of planet gears 52 which engage with the sun gear and the ring gear, and a planet carrier 53 on which the planet gears are rotatably mounted .
- the ring gear 51 is fixedly connected to the first input part 6, in particular by means of screw 54, and is rotatably mounted on the planet carrier 53 about the axis of rotation A3 via bearings 55, 55 '.
- the sun gear 50 forms the second input part 7 of the storage gear 5.
- the planet carrier 53 forms the output part 8 of the bearing gear 5, which is firmly connected to the differential cage of the differential gear 9, in particular in one piece with it.
- the carrier element comprising the planet carrier 53 and differential carrier 60 has a portion 33 on the planet gear side, which axially covers the sun gear 50 and which is rotatably mounted laterally adjacent to the sun gear by means of a bearing 49 in the housing 21 about the axis of rotation A3.
- the carrier element On the axially opposite side, the carrier element has a sleeve-shaped section 59 which is rotatably mounted in the housing 21 by means of a further bearing 49 'about the axis of rotation A3.
- the section 33 on the planet wheel side has a larger diameter than the sleeve-shaped section 59; Accordingly, the planet-side bearing 49 is also larger than the sleeve-side bearing 49 '.
- the second input part 7 is cranked in the present case, without being limited to this, that is, the connecting portion of the input part 7 with the hollow shaft 45 is axially offset from the toothed portion 50. This results in a particularly compact design of the unit from differential gear 9 and Superimposed transmission 5.
- the differential gear 9 is provided for uniformly transmitting a drive torque introduced into the differential carrier 60 by the superposition gear 5 to the right and left side shafts of the motor vehicle.
- the differential gear 9 comprises a plurality of differential wheels 61, which together with the differential carrier 60 rotate around the axis of rotation A3, and two sideshaft gears, which are in meshing engagement with the differential gears 61 and serve as output parts 62, 63.
- the side shaft gears are to be connected to the respective side shaft (not shown) for torque transmission, the side shaft to be connected to the output part 63 extending through the hollow shaft 45.
- a locking device 70 is provided in order to selectively lock or unlock the differential cage 60 or the output part 8 of the superposition gear 5 connected to it.
- the locking device 70 comprises a positive clutch 71 and an actuating unit 72.
- the positive clutch 71 comprises a first coupling part 73, which is fixedly connected to the differential carrier 60, and a second coupling part 74, which is connected to the housing in a rotationally fixed and axially movable manner.
- the actuation unit 72 is designed here as an electrohydraulic actuation unit and comprises a piston 76 which is seated in a cylinder chamber 75 and which can be moved axially by applying a hydraulic pressure.
- the piston 76 is operatively connected to the second coupling part 74 to act upon this when a hydraulic pressure is applied in the closing direction.
- a to re-open the positive clutch 71 or retract the piston 76, a remindstellfe the 77 is provided, which is supported on the housing and acts on the second coupling part 74 away from the first coupling part 73.
- Extended operating modes of the drive arrangement 2 are possible by means of the locking device 70.
- the open position of the positive-locking clutch 71 a rotational movement guided by the internal combustion engine and / or by the electrical machine into the superposition gear is transmitted via the differential gear 9 to the side shafts.
- the closed position of the positive-locking clutch 71 the differential cage 60 or the superposition gear output part 8 rotatably fixed, so that a direct drive connection between the internal combustion engine and the electrical machine is established. In this way, the internal combustion engine can drive the electric machine, or vice versa, the electric machine. machine can drive the internal combustion engine.
- the locking device In the closed state of the positive clutch 71, the locking device can also act as a parking lock.
- the superposition gear 5 contains a further clutch function.
- a controllable coupling arrangement 56 is provided between the first input part 6 and the output part 8.
- a rotational freedom of the superposition gear 5 is limited, that is, a relative rotary movement is canceled.
- the clutch arrangement 56 comprises a form-fitting coupling 57 and an electrohydraulic actuating device 58.
- the form-fitting coupling 57 has a coupling input part 35 which is connected in a rotationally fixed and axially movable manner to the first input part 6 of the superposition gear 5, and a coupling output part 36 which is connected in a rotationally fixed manner the output part 8 or differential cage 60 is connected, in particular in one piece with this.
- the clutch input part 35 has a ringför shaped engaging portion, which is intended to be connected to an opposite engaging portion of the clutch output part 36, and a plurality of circumferentially distributed actuating sections 37 which are passed through the wall of the input part 8 and from the actuating device 58 can be charged.
- the actuating device 58 is also designed as an electrohydraulic actuating device and comprises a piston 38 which is seated in a cylinder chamber and which can be moved axially by applying a hydraulic pressure.
- a La ger 39 is provided between the non-rotatably arranged piston and the rotatable clutch input part.
- a return spring 33 is provided, which is supported on the first input part 6 and the coupling input part 35 acts on the coupling output part 36 away.
- the members of the superposition gear are freely rotatable relative to one another, while in the closed position of the positive clutch they are interlocked and rotate together.
- FIG. 2 shows a transmission arrangement 2 according to the invention in a further embodiment.
- this largely corresponds to the embodiment according to FIG. 1, so that reference is made to the above description with regard to the similarities.
- the same or corresponding details are provided with the same reference numerals as in FIG. 1.
- the first transmission unit 3 is designed as a four-speed transmission in the present embodiment.
- the gear unit 3 comprises a Ravigneaux set, that is, a double planetary gear 13 with a first sun gear 15, meshing first planet gears 17, a second sun gear 15 'and meshing second planet gears 17', a planet carrier 18 which carries the first and second planet gears 17, 17 'carries, as well as a Flohlrad 16, which is in meshing engagement with the second planet gears 17'.
- the various gear ratios are achieved by driving or coupling certain links 15, 18, 15 'of the Ravigneaux set or blocking the entire planetary gear set 17, 17'.
- several controllable coupling arrangements 13, 64, 65 are provided.
- a first controllable clutch arrangement 13, which is constructed similarly in terms of structure and mode of operation as in FIG. 1, is functionally arranged between the planet carrier 18 and the first drive part 10.
- Another controllable clutch arrangement 64 is functionally provided between the first drive part 10 and the first sun gear 15 in order to either allow or separate a torque transmission between the links mentioned.
- This second clutch arrangement 64 comprises, in particular, a form-fitting coupling 66 and an electrohydraulic actuation unit 67 for actuating the form-fitting coupling.
- a further controllable clutch arrangement is functionally provided between the second sun gear 15 'and the housing 21 in order to transmit torque between the second sun gear 15' and to either allow or separate the housing 21.
- This further clutch arrangement 65 comprises, in particular, a form-fitting coupling 68 and an electrohydraulic actuation unit 69 for actuating the form-fitting coupling 68.
- the coupling 68 When the coupling 68 is open, the second sun gear 15 'can rotate freely. In the closed state of the clutch 68, the second sun gear 15 'is held in a rotationally fixed manner, so that a torque introduced into the second sun gear 15' is supported.
- the output can take place, for example, via the ring gear 16 or a hollow shaft connected here with a drive wheel 18, which via the intermediate gear 20 carries a rotary movement to the first input part 6 of the superposition gear 5.
- the structure and mode of operation of the other components is analogous to the embodiment according to FIG. 1, to which reference is made to avoid repetition.
- FIG. 3 shows a gear arrangement 2 according to the invention in a modified embodiment.
- the present embodiment largely corresponds to the design according to FIG. 2 in terms of structure and mode of operation, so that reference is made to the above description with regard to the similarities.
- the same or corresponding details are provided with the same reference numerals as in FIG. 2 and FIG. 1.
- the traction mechanism drive comprises a drive wheel 43 which is connected to the intermediate shaft 41 in a rotationally fixed manner, a driven wheel 44 fixedly connected to the hollow shaft 45 and an endless traction device 46 which transmits torque from the drive wheel 43 to the driven wheel 44. It can be seen that the driven wheel 44 has a significantly larger diameter than the drive wheel 43, so that here too a translation takes place slowly.
- the traction mechanism drive can have, for example, a belt or a chain as a traction mechanism 46.
- the embodiment with a two-speed transmission according to FIG. 1 can also be designed with a traction mechanism drive, as shown in FIG. 3.
- the transmission arrangements 2 described for a hybrid drive with an internal combustion engine and an electrical machine advantageously offer in particular the technical properties of a continuously variable transmission (Continuously Variable Transmission, CVT), a parallel drive by means of both drives, that is to say an internal combustion engine and an electrical machine, a reverse drive, a towing start of the internal combustion engine, a load-free switchability, a possibility of charging the battery by means of the internal combustion engine when the vehicle is at a standstill, and a start function of the internal combustion engine by means of the electrical machine when the motor vehicle is at a standstill.
- CVT Continuous Variable Transmission
- a parallel drive by means of both drives that is to say an internal combustion engine and an electrical machine
- a reverse drive a towing start of the internal combustion engine
- a load-free switchability a possibility of charging the battery by means of the internal combustion engine when the vehicle is at a stand
- Coupling arrangement form fit coupling actuating device section differential cage
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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PCT/EP2018/085052 WO2020119928A1 (en) | 2018-12-14 | 2018-12-14 | Transmission arrangement for a hybrid drive |
CN201880100117.3A CN113165499A (en) | 2018-12-14 | 2018-12-14 | Transmission assembly for hybrid drive |
DE112018008201.6T DE112018008201A5 (en) | 2018-12-14 | 2018-12-14 | Gear arrangement for a hybrid drive |
JP2021526375A JP7459088B2 (en) | 2018-12-14 | 2018-12-14 | Transmission devices for hybrid drives |
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PCT/EP2018/085052 WO2020119928A1 (en) | 2018-12-14 | 2018-12-14 | Transmission arrangement for a hybrid drive |
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WO2020119928A1 true WO2020119928A1 (en) | 2020-06-18 |
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PCT/EP2018/085052 WO2020119928A1 (en) | 2018-12-14 | 2018-12-14 | Transmission arrangement for a hybrid drive |
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JP (1) | JP7459088B2 (en) |
CN (1) | CN113165499A (en) |
DE (1) | DE112018008201A5 (en) |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202023101655U1 (en) | 2023-03-31 | 2023-04-26 | Gkn Automotive Limited | Transmission arrangement for a hybrid drive |
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Also Published As
Publication number | Publication date |
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JP7459088B2 (en) | 2024-04-01 |
CN113165499A (en) | 2021-07-23 |
DE112018008201A5 (en) | 2021-09-30 |
JP2022507443A (en) | 2022-01-18 |
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