WO2016034551A1 - Hybrid drive train for a motor vehicle - Google Patents

Hybrid drive train for a motor vehicle Download PDF

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Publication number
WO2016034551A1
WO2016034551A1 PCT/EP2015/069888 EP2015069888W WO2016034551A1 WO 2016034551 A1 WO2016034551 A1 WO 2016034551A1 EP 2015069888 W EP2015069888 W EP 2015069888W WO 2016034551 A1 WO2016034551 A1 WO 2016034551A1
Authority
WO
WIPO (PCT)
Prior art keywords
clutch
gear
drive train
hybrid drive
differential
Prior art date
Application number
PCT/EP2015/069888
Other languages
German (de)
French (fr)
Inventor
Frank Müller
Original Assignee
Volkswagen Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volkswagen Aktiengesellschaft filed Critical Volkswagen Aktiengesellschaft
Priority to CN201580047742.2A priority Critical patent/CN106660441B/en
Publication of WO2016034551A1 publication Critical patent/WO2016034551A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—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
    • B60K6/383—One-way clutches or freewheel devices
    • 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
    • B60K6/42—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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B60K2006/268—Electric drive motor starts the engine, i.e. used as starter motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4808—Electric machine connected or connectable to gearbox output shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
    • 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 hybrid powertrain for a motor vehicle, having the features of the preamble of claim 1.
  • a drive train for a motor vehicle namely for a motorcycle is known.
  • the motorcycle has an internal combustion engine and an electric motor.
  • Internal combustion engine serves to drive the motorcycle during a forward drive.
  • the electric motor can be operated in both directions.
  • the e-machine serves as a starter motor for starting the internal combustion engine.
  • the combustion engine can therefore be started with the electric motor.
  • An output shaft of the electric motor carries a
  • One-way clutch that transmits torque in a cranking direction but not in the reverse direction.
  • This one-way clutch is designed as Anfanklaue.
  • Reverse gear formed, which is associated with the reverse gear.
  • the hybrid powertrain includes an internal combustion engine, an electric motor, and a differential.
  • the internal combustion engine drives a crankshaft.
  • the crankshaft is connected to a flywheel and to a damper element.
  • the electric machine has a rotor and a stator and is arranged parallel spaced from the axis of the crankshaft.
  • the electric motor can be used to start the internal combustion engine.
  • the rotor drives an intermediate member in the form of a hub via a chain.
  • the hub is arranged coaxially with the crankshaft.
  • the hub can be connected via a first clutch to the internal combustion engine and via a second clutch to a transmission input shaft.
  • the hub has an outer rim, the outer rim being in communication with the first coupling.
  • the hub further includes an inner collar rotatably coupled to the second clutch.
  • the hybrid powertrain has an internal combustion engine, an electric machine and a gear assembly for providing two different gear ratios.
  • the combustion engine and the electric motor are coupled to the transmission assembly.
  • the electric machine and the internal combustion engine are via a spur gear with a
  • the hybrid powertrain further includes a differential, wherein the differential is coupled to an output of the transmission assembly.
  • the drive power can be distributed to two axle shafts.
  • the electric machine is arranged coaxially with one of the axle shafts of the differential.
  • the one axle of the differential is passed through the hollow rotor shaft.
  • the rotor shaft is rotatably mounted on a portion of the axle shaft by means of corresponding bearings.
  • the fact that the rotor shaft is designed as a rotatably mounted hollow shaft, the electric motor is not directly, but coupled via the gear assembly with the differential.
  • the internal combustion engine and the electric motor are arranged in the axial direction on the same side of the differential.
  • the spur gear has three gears. A first gear is fixedly connected to the transmission input shaft.
  • a second gear is operatively connected to the electric machine.
  • a third gear is via a first clutch to the crankshaft of the
  • the internal combustion engine can be decoupled from the third gear or connected thereto.
  • the internal combustion engine can entrain the electric machine in order to operate the electric machine as a generator.
  • the internal combustion engine is preferably decoupled from the third gear via the first clutch, so that the electric machine does not have to drag the internal combustion engine.
  • the first clutch is formed by a freewheel.
  • the freewheel is switchable, so that by means of an actuator, a switching of the freewheel is possible, namely from a freewheeling operation in a rigidly coupled operation.
  • the rotor of the electric machine is entrained. To start the engine, the electric motor is functionally effective coupled to the engine.
  • the generic hybrid powertrain is not yet optimally designed
  • the invention has for its object to design the generic hybrid powertrain such and further, that a space-saving, inexpensive and easy hybridization is provided.
  • Clutch is the electric motor rotatably coupled with a differential housing.
  • the differential may be formed, for example, as a spur gear or as a bevel gear differential.
  • the electric motor can be connected via the two clutches optionally with the starter gear or the differential housing.
  • the electric motor is preferably via a
  • Planetary gear connected to the first and second clutch.
  • the power flow can be split functionally effectively on two axle shafts.
  • the electric motor is arranged in particular coaxially with one of the axle shafts of the differential. As a result, a compact design is possible. A space-saving
  • Arrangement preferably results from the fact that the electric motor is arranged concentrically to the two axle shafts.
  • a rotor of the electric motor can be rotatably mounted on an intermediate shaft, wherein the intermediate shaft connects one of the axle shafts with the differential.
  • the second clutch is coupled on the output side with a differential housing rotatably, wherein the differential housing corresponding differential gears, for example, bevel gears or the like. By closing the second clutch, the differential is directly driven.
  • the electric machine can be a 48 volt electric machine. This e-machine can be used as a starter and provides more
  • the electric machine selected here can be used in particular instead of a conventional belt starter generator. In comparison to one
  • Riemenstartergenerator give rise to the advantages that a consumption advantage can be achieved, and corresponding crankshaft bearings are not burdened by a belt tension.
  • Hybrid powertrain arrangement has a good Rekuperationspotential because of
  • Combustion engine does not have to be carried along.
  • the first and / or the second clutch may be designed as wet-running friction clutches.
  • the two clutches and the differential can be arranged in a common oil chamber.
  • the oil space can also extend into the area of the electric motor. If the electric motor drives a corresponding differential, therefore, a corresponding lubrication of the rotating components is possible.
  • the first coupling has an output side in particular arranged in a drying room output gear. The output gear is in meshing engagement with that in the dry space
  • the starter gear and the output gear are arranged in the drying room.
  • the starter gear is preferably decoupled from the engine via a freewheel (crank gear) as long as the engine drives the crankshaft. As a result, a load on the dry-running starter gear and the dry-running output gear is reduced.
  • the electric machine can be at higher
  • the hybrid powertrain according to the invention has in particular a corresponding one
  • first clutch preferably without four-wheel drive on. It is conceivable to design the first clutch also as a freewheel or as an overrunning clutch.
  • the first clutch may be associated with an actuating piston.
  • the actuating piston In order now to keep the first clutch closed in the basic position, the actuating piston is biased by a spring means in the closed position of the first clutch. By a corresponding spring means or a spring preload a start function is given even in case of failure of the double clutch. To actuate the two clutches only one actuating force is required.
  • 1 is a schematic, sectional view of a portion of a first hybrid powertrain
  • Fig. 2 is a schematic representation of part of a second
  • Fig. 3 is a schematic representation of part of a third
  • a first hybrid powertrain 1 in Fig. 2 is a second hybrid powertrain 2 and in Fig. 3, a third hybrid powertrain 3 is at least partially shown.
  • the hybrid powertrains 1 to 3 are suitable for use in a motor vehicle.
  • the hybrid drive trains 1 to 3 each include an internal combustion engine, which is not shown in Figs. 1 to 3.
  • the internal combustion engine can be designed as a gasoline engine or as a diesel engine.
  • the hybrid powertrains 1 to 3 each include an electric machine 4.
  • the electric machine 4 may be preferably used as a motor and a generator, thus providing corresponding hybrid functions.
  • the electric motor 4 can be designed in particular as a 48 volt electric motor.
  • the operating voltage can be substantially 48 volts.
  • the electric machine 4 has a stator 5 and a rotor 6.
  • the electric motor 4 can be designed as an asynchronous motor.
  • the electric motor 4 can be used as described in more detail for starting the internal combustion engine.
  • the hybrid powertrain 1, 2, 3 each have a differential 7, 8.
  • the differentials 7 shown in FIGS. 1 and 2 are designed as bevel gear differential 9.
  • the differential 8 is designed as a spur gear differential 10.
  • Torsion damper 1 1 is in this case connected to a corresponding shaft 12.
  • Torque of the internal combustion engine is then supplied to a transmission, not shown, in particular by means of the transmission, in particular a plurality of gear ratios are switchable.
  • the torque is transmitted from one output of the transmission to the corresponding one
  • the axle shaft 14 shown in FIGS. 1 to 3 is in this case with the differential output coupled via an intermediate shaft 15.
  • the intermediate shaft 15 is preferably designed as a solid shaft.
  • the electric motor 4 is arranged on the intermediate shaft 15.
  • the intermediate shaft 15 may also be made integral with the drive shaft 14 as a compartment thereof.
  • the voltage applied to the transmission output torque is first fed to a differential housing 16, 17.
  • the differential housing 16, 17 are corresponding bevel gears 18th
  • axle wheels 20, 21 wherein the axle wheels 20, 21 in the case of
  • Bevel gear differentials 9 as Kegelachs render (unspecified) are executed and in the case of Stirnraddifferentials 10 (see Fig .. 3) are formed as spur gears.
  • the axle 20 is rotatably connected to an unspecified stub axle of the axle 13.
  • the axle 21 is seated on a corresponding axle end (unspecified) of the intermediate shaft 15.
  • the other end of the intermediate shaft 15 is in turn rotatably connected to a corresponding stub axle of the axle shaft 14.
  • the rotor 6 of the electric motor 4 is hollow and mounted in particular by means of corresponding bearings 22 on the intermediate shaft 15.
  • the rotor 6 is preferably non-rotatably connected to a sun gear 23.
  • the planetary gear stage 24 further comprises at least one, in particular a plurality of planet gears 25 and a ring gear 26.
  • the planet gears are in meshing engagement both with the ring gear 26 and with the sun gear 23.
  • the ring gear 26 is fixed to the housing fixed to a housing 27 here.
  • the planet gears 25 are arranged on a web 28, wherein the web 28 is rotatably connected to a hub 29.
  • the hub 29 is operatively connected via a first clutch 30 with a gear 31 coupled.
  • the first clutch 30 is connected on the output side to a sleeve 32, wherein the sleeve 32 is rotatably supported via a bearing 33 on the inside of the housing 27 and is rotatably connected via a non-designated toothing with the gear 31.
  • the first clutch 30 is designed as a multi-plate clutch 34.
  • the first clutch 30 is designed as a freewheel 35.
  • the freewheel 35 may also be referred to as an overrunning clutch.
  • the sleeve 32 is used in the embodiment with the multi-plate clutch 34 accordingly as outer disc carrier.
  • the hub 29 carries alternately laminated with the outer plates inner plates.
  • Multi-plate clutch 34 has a corresponding plate pack, consisting of the
  • Planetary gear 24 transmitted torque from the electric motor 4 to the gear 31.
  • the gear 31 in turn is in meshing engagement with a starter gear 36.
  • the electric motor 4 is thus connected via the first clutch 30 to the starter gear 36.
  • the starter gear 36 is part of a ring gear 37.
  • the ring gear 37 is at his
  • the starter gear 36 is now operatively connected to the shaft 12 or connectable, so that
  • Closing of the first clutch 30 of the internal combustion engine by means of the electric motor 4 is startable.
  • the starter gear 36 via a further freewheel 39 is functionally effective with a crankshaft assembly 40 (only partially shown) coupled.
  • the crankshaft assembly 40 is provided with a shaft 12
  • Output gear 31, the starter gear 36 and the freewheel together form a permanently starter starter.
  • the freewheel 39 can be designed in particular as a sprag freewheel. Due to the permanently installed starter, the acoustics are improved, especially during the starting process.
  • the second clutch 41 is formed as a multi-plate clutch.
  • corresponding plate pack (unspecified) has supported by an inner disk carrier 43 inner disks and supported by an outer disk carrier 44 outer disks.
  • the inner plates and the outer plates are stacked alternately.
  • the outer disk carrier 44 is formed here several cranked.
  • the outer disk carrier 44 is further rotatably connected to the corresponding differential housing 16, 17.
  • an axially displaceable actuating piston 45 is now provided.
  • the actuating piston 45 is biased by a spring means 46 such that in a basic position of the second clutch 41, the second clutch 41 is opened.
  • a spring means 46 such that in a basic position of the second clutch 41, the second clutch 41 is opened.
  • Actuating piston 45 only to the second clutch 41, namely the multi-plate clutch 42.
  • the actuating piston 45 is double-acting, so that the actuating piston 45 is urged by the spring means 46 into a closing position of the first clutch 30. In the basic position is therefore the first
  • Clutch 30 is closed, whereby the internal combustion engine can always be started by means of the electric motor 4. It is a starting function by the spring means 46 in the form of
  • the electric motor 4 can be decoupled in particular at higher speeds, wherein the ring gear 37 is decoupled both from the electric motor 4 via the first clutch 30 and from the internal combustion engine via the freewheel 39 and stands accordingly.
  • the gear 31 is arranged in particular in a drying chamber 47 coaxial with the intermediate shaft 15.
  • the electric motor 4, the first clutch 30 and the second clutch 41 and the corresponding differential 7, 8 are arranged in a wet space 48 with corresponding oil (not shown).
  • the drying space 47 and the wet space 48 are sealed in the region of the toothed wheel 31, in particular by two sealing means 49 on the housing 27 and on the further housing part 50.
  • the gear 31 is sealed by a unspecified seal, preferably an O-ring, against the sleeve 32.
  • the wet space 48 is then the differential 7, 9 and the planetary gear 24 and the electric motor 4 in common, with a connection between these two its parts by means of the annular spaces both between the gear 31 and the sleeve 32, and the sleeve and the Intermediate shaft 15 is ensured.
  • a ramp plate 52 is connected to a worm drive 53.
  • the actuating piston 45 is axially supported on an engagement bearing 54.
  • the engagement bearing 54 can be axially actuated by a corresponding indentor 55 and thus the actuating piston 45 are moved against the spring tension for actuating the second clutch 41.
  • the hybrid drive trains 1 to 3 described here have a modular hybrid design which describes a mild hybrid emergency train which is particularly suitable for manual, automatic and / or dual-clutch transmissions. No additional belt starter generator is necessary. It can be used a simple alternator. To actuate the two clutches 30, 41 only one actuating force is necessary.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Arrangement Of Transmissions (AREA)

Abstract

The invention relates to a hybrid drive train (1, 2, 3) for a motor vehicle, comprising an internal combustion engine, an e-machine (4) and a differential (7, 8). In order to start the internal combustion engine, the e-machine (4) can be coupled via a first coupling (30) in a functionally efficient manner to the internal combustion engine. A space-saving, cost-effective and simple hybridization is provided in that the e-machine (4) can be coupled to the differential (7, 8) via a second coupling (41).

Description

Beschreibung  description
Hybridantriebsstrang für ein Kraftfahrzeug Hybrid powertrain for a motor vehicle
Die Erfindung betrifft einen Hybridantriebsstrang für ein Kraftfahrzeug, mit den Merkmalen des Oberbegriffes des Patentanspruches 1 . The invention relates to a hybrid powertrain for a motor vehicle, having the features of the preamble of claim 1.
Aus der DE 36 36 286 A1 ist ein Antriebsstrang für ein Kraftfahrzeug, nämlich für ein Motorrad bekannt. Das Motorrad weist einen Verbrennungsmotor und eine E-Maschine auf. Der From DE 36 36 286 A1 a drive train for a motor vehicle, namely for a motorcycle is known. The motorcycle has an internal combustion engine and an electric motor. Of the
Verbrennungsmotor dient dabei zum Antrieb des Motorrads während einer Vorwärtsfahrt. Die E- Maschine kann in beiden Drehrichtungen betrieben werden. Die E-Maschine dient zum einen als Anlassermotor zum Starten des Verbrennungsmotors. Mit der E-Maschine kann daher der Verbrennungsmotor gestartet werden. Eine Abtriebswelle der E-Maschine trägt eine Internal combustion engine serves to drive the motorcycle during a forward drive. The electric motor can be operated in both directions. The e-machine serves as a starter motor for starting the internal combustion engine. The combustion engine can therefore be started with the electric motor. An output shaft of the electric motor carries a
Einwegkupplung, die Drehmoment in einer Anlassrichtung jedoch nicht in der umgekehrten Richtung überträgt. Diese Einwegkupplung ist als Andrehklaue ausgebildet. Ein die One-way clutch that transmits torque in a cranking direction but not in the reverse direction. This one-way clutch is designed as Andrehklaue. A the
Abtriebsseite der Einwegkupplung bildendes Anlasserritzel kämmt mit einem angetriebenen Anlasserzahnrad. Dieses Anlasserzahnrad und eine Kurbelwelle der Brennkraftmaschine sind einstückig hergestellt. Die E-Maschine dient zum anderen als Antrieb während einer Output side of the one-way clutch forming starter pinion meshes with a driven starter gear. This starter gear and a crankshaft of the internal combustion engine are manufactured in one piece. On the other hand, the electric motor serves as a drive during one
Rückwärtsfahrt des Motorrads. Einstückig mit der Abtriebswelle der E-Maschine ist ein Reversing the motorcycle. Integral with the output shaft of the electric motor is a
Rückwärtsgangzahnrad ausgebildet, das dem Rückwärtsgang zugeordnet ist. Reverse gear formed, which is associated with the reverse gear.
Aus der US 7,690,280 B2 ist eine Hybridantriebsstranganordnung für ein Kraftfahrzeug bekannt. Der Hybridantriebsstrang weist einen Verbrennungsmotor, eine E-Maschine und ein Differential auf. Der Verbrennungsmotor treibt eine Kurbelwelle an. Die Kurbelwelle ist mit einem Schwungrad und mit einem Dämpferelement verbunden. Die elektrische Maschine weist einen Rotor und einen Stator auf und ist parallel beabstandet zur Achse des Kurbelwelle angeordnet. Die E-Maschine kann zum Starten des Verbrennungsmotors genutzt werden. Der Rotor treibt ein Zwischenglied in Form einer Nabe über eine Kette an. Die Nabe ist koaxial zur Kurbelwelle angeordnet. Die Nabe ist über eine erste Kupplung mit dem Verbrennungsmotor und über eine zweite Kupplung mit einer Getriebeeingangswelle verbindbar. Die Nabe weist einen äußeren Kranz auf, wobei der äußere Kranz mit der ersten Kupplung Verbindung steht. Die Nabe weist ferner einen inneren Kranz auf, der in Drehverbindung mit der zweiten Kupplung steht. From US 7,690,280 B2, a hybrid powertrain arrangement for a motor vehicle is known. The hybrid powertrain includes an internal combustion engine, an electric motor, and a differential. The internal combustion engine drives a crankshaft. The crankshaft is connected to a flywheel and to a damper element. The electric machine has a rotor and a stator and is arranged parallel spaced from the axis of the crankshaft. The electric motor can be used to start the internal combustion engine. The rotor drives an intermediate member in the form of a hub via a chain. The hub is arranged coaxially with the crankshaft. The hub can be connected via a first clutch to the internal combustion engine and via a second clutch to a transmission input shaft. The hub has an outer rim, the outer rim being in communication with the first coupling. The hub further includes an inner collar rotatably coupled to the second clutch.
Aus der gattungsbildenden EP 2 556 978 A1 ist ein Hybridantriebsstrang für ein Kraftfahrzeug bekannt. Der Hybridantriebsstrang weist einen Verbrennungsmotor, eine elektrische Maschine sowie eine Getriebeanordnung zur Bereitstellung von zwei unterschiedlichen Gangstufen auf. Der Verbrennungsmotor und die E-Maschine sind mit der Getriebeanordnung gekoppelt. Die elektrische Maschine und der Verbrennungsmotor sind über ein Stirnradsatz mit einer From the generic EP 2 556 978 A1 discloses a hybrid powertrain for a motor vehicle is known. The hybrid powertrain has an internal combustion engine, an electric machine and a gear assembly for providing two different gear ratios. The combustion engine and the electric motor are coupled to the transmission assembly. The electric machine and the internal combustion engine are via a spur gear with a
Getriebeeingangswelle der Getriebeanordnung gekoppelt. Der Hybridantriebsstrang weist ferner ein Differential auf, wobei das Differential mit einem Ausgang der Getriebeanordnung gekoppelt ist. Mittels des Differentials ist die Antriebsleistung auf zwei Achswellen verteilbar. Die elektrische Maschine ist koaxial zu einer der Achswellen des Differentials angeordnet. Die eine Achswelle des Differentials ist dabei durch die hohle Rotorwelle hindurchgeführt. Die Rotorwelle ist auf einem Abschnitt der Achswelle mittels entsprechender Lager drehbar gelagert. Dadurch, dass die Rotorwelle als drehbar gelagerte Hohlwelle ausgeführt ist, ist die E- Maschine nicht direkt, sondern über die Getriebeanordnung mit dem Differential gekoppelt. Der Verbrennungsmotor und die E-Maschine sind in axialer Richtung auf der gleichen Seite des Differentials angeordnet. Der Stirnradsatz weist drei Zahnräder auf. Ein erstes Zahnrad ist fest mit der Getriebeeingangswelle verbunden. Ein zweites Zahnrad ist wirksam mit der E-Maschine verbunden. Ein drittes Zahnrad ist über eine erste Kupplung mit der Kurbelwelle des Transmission input shaft of the gear assembly coupled. The hybrid powertrain further includes a differential, wherein the differential is coupled to an output of the transmission assembly. By means of the differential, the drive power can be distributed to two axle shafts. The electric machine is arranged coaxially with one of the axle shafts of the differential. The one axle of the differential is passed through the hollow rotor shaft. The rotor shaft is rotatably mounted on a portion of the axle shaft by means of corresponding bearings. The fact that the rotor shaft is designed as a rotatably mounted hollow shaft, the electric motor is not directly, but coupled via the gear assembly with the differential. The internal combustion engine and the electric motor are arranged in the axial direction on the same side of the differential. The spur gear has three gears. A first gear is fixedly connected to the transmission input shaft. A second gear is operatively connected to the electric machine. A third gear is via a first clutch to the crankshaft of the
Verbrennungsmotors koppelbar. Hierdurch kann der Verbrennungsmotor von dem dritten Zahnrad abgekoppelt werden oder mit diesem verbunden werden. Der Verbrennungsmotor kann die elektrische Maschine mitschleppen, um die elektrische Maschine entsprechend als Generator zu betreiben. Bei einem rein elektromotorischen Antrieb wird der Verbrennungsmotor über die erste Kupplung vorzugsweise von dem dritten Zahnrad abgekoppelt, damit die elektrische Maschine den Verbrennungsmotor nicht mitschleppen muss. Die erste Kupplung ist durch einen Freilauf gebildet. Der Freilauf ist schaltbar ausgebildet, so dass mittels eines Aktuators eine Umschaltung des Freilaufs möglich ist, nämlich von einem Freilaufbetrieb in einen starr gekoppelten Betrieb. Bei einem rein verbrennungsmotorischen Antrieb wird der Rotor der elektrischen Maschine mitgeschleppt. Zum Starten des Verbrennungsmotors ist die E-Maschine funktional wirksam mit dem Verbrennungsmotor koppelbar. Combustion engine coupled. As a result, the internal combustion engine can be decoupled from the third gear or connected thereto. The internal combustion engine can entrain the electric machine in order to operate the electric machine as a generator. In a purely electric motor drive, the internal combustion engine is preferably decoupled from the third gear via the first clutch, so that the electric machine does not have to drag the internal combustion engine. The first clutch is formed by a freewheel. The freewheel is switchable, so that by means of an actuator, a switching of the freewheel is possible, namely from a freewheeling operation in a rigidly coupled operation. In a purely internal combustion engine drive, the rotor of the electric machine is entrained. To start the engine, the electric motor is functionally effective coupled to the engine.
Der gattungsbildende Hybridantriebsstrang ist aber noch nicht optimal ausgebildet, The generic hybrid powertrain is not yet optimally designed,
insbesondere weil die Anordnung und Ausbildung der jeweiligen Komponenten einen großen Bauraum erfordern. in particular because the arrangement and design of the respective components require a large amount of space.
Der Erfindung liegt die Aufgabe zugrunde, den gattungsbildenden Hybridantriebsstrang derart auszugestalten und weiterzubilden, dass eine bauraumsparende, kostengünstige und einfache Hybridisierung bereitgestellt ist. The invention has for its object to design the generic hybrid powertrain such and further, that a space-saving, inexpensive and easy hybridization is provided.
Diese der Erfindung zugrunde liegende Aufgabe wird nun durch einen Hybridantriebsstrang mit den Merkmalen des Patentanspruches 1 gelöst. Es sind nun zwei Kupplungen vorgesehen. Die E-Maschine ist über eine erste Kupplung mit einem Anlasserzahnrad verbindbar. Die E- Maschine ist über die zweite Kupplung mit dem Differential koppelbar. Über die zweite This object of the invention is now achieved by a hybrid powertrain with the features of claim 1. There are now two clutches provided. The electric motor can be connected to a starter gear via a first clutch. The E The machine can be coupled to the differential via the second clutch. About the second
Kupplung ist die E-Maschine drehfest mit einem Differentialgehäuse koppelbar. Das Differential kann beispielsweise als Stirnraddifferential oder als Kegelraddifferential ausgebildet sein. Die E- Maschine kann über die beiden Kupplungen wahlweise mit dem Anlasserzahnrad oder dem Differentialgehäuse verbunden werden. Die E-Maschine ist vorzugsweise über eine Clutch is the electric motor rotatably coupled with a differential housing. The differential may be formed, for example, as a spur gear or as a bevel gear differential. The electric motor can be connected via the two clutches optionally with the starter gear or the differential housing. The electric motor is preferably via a
Planetengetriebestufe mit der ersten und der zweiten Kupplung verbunden. Hierdurch ist es denkbar auch mit einer kleiner dimensionierten E-Maschine ein entsprechendes Drehmoment zum Starten des Verbrennungsmotors aufbringen zu können. Hierdurch ist es denkbar, einen rein elektrischen Fahrbetrieb durch Schließen der zweiten Kupplung zumindest bei niedrigen Fahrgeschwindigkeiten bereitzustellen. Zum Motor kann insbesondere eine Planetary gear connected to the first and second clutch. As a result, it is conceivable to be able to apply a corresponding torque for starting the internal combustion engine even with a smaller dimensioned electric motor. This makes it possible to provide a purely electric driving operation by closing the second clutch at least at low driving speeds. The engine can in particular a
Gesamtübersetzung von beispielsweise i=1 1 bestehen. Die Gesamtübersetzung ist gebildet aus der Übersetzung des Planetengetriebes und der Übersetzung des Anlasserzahnrades zu einem Starterkranz. Eine E-Maschine mit 18 Nm kann dabei einen Drehmoment von circa 200 Nm zum sicheren Verbrennungsmotorstart aufbringen. Overall translation of, for example, i = 1 1 exist. The total ratio is formed from the translation of the planetary gear and the translation of the starter gear to a starter ring. An e-machine with 18 Nm can apply a torque of about 200 Nm for safe engine start.
Mittels des Differentials ist der Leistungsfluss auf zwei Achswellen funktional wirksam aufteilbar. Die E-Maschine ist dabei insbesondere koaxial zu einer der Achswellen des Differentials angeordnet. Hierdurch ist eine kompakte Bauform ermöglicht. Eine bauraumsparende By means of the differential, the power flow can be split functionally effectively on two axle shafts. The electric motor is arranged in particular coaxially with one of the axle shafts of the differential. As a result, a compact design is possible. A space-saving
Anordnung ergibt sich vorzugsweise dadurch, dass die E-Maschine konzentrisch zu den beiden Achswellen angeordnet ist. In einer einfachen Ausgestaltung kann dazu ein Rotor der E- Maschine auf einer Zwischenwelle drehbar gelagert sein, wobei die Zwischenwelle eine der Achswellen mit dem Differential verbindet. Die zweite Kupplung ist dabei ausgangsseitig mit einem Differentialgehäuse drehfest gekoppelt, wobei das Differentialgehäuse entsprechende Ausgleichsräder beispielsweise Kegelräder oder dergleichen trägt. Durch Schließen der zweiten Kupplung ist das Differential direkt antreibbar. Die E-Maschine kann insbesondere eine 48 Volt E-Maschine sein. Diese E-Maschine ist zum einen als Starter nutzbar und stellt weitere Arrangement preferably results from the fact that the electric motor is arranged concentrically to the two axle shafts. In a simple embodiment, a rotor of the electric motor can be rotatably mounted on an intermediate shaft, wherein the intermediate shaft connects one of the axle shafts with the differential. The second clutch is coupled on the output side with a differential housing rotatably, wherein the differential housing corresponding differential gears, for example, bevel gears or the like. By closing the second clutch, the differential is directly driven. In particular, the electric machine can be a 48 volt electric machine. This e-machine can be used as a starter and provides more
Hybridfunktionen bereit. Die hier gewählte E-Maschine kann insbesondere anstelle eines konventionellen Riemenstartergenerators eingesetzt werden. Im Vergleich zu einem Hybrid features ready. The electric machine selected here can be used in particular instead of a conventional belt starter generator. In comparison to one
Riemenstartergenerator ergeben sich die Vorteile, dass ein Verbrauchsvorteil erzielbar ist, und entsprechende Kurbelwellenlager nicht durch eine Riemenspannung belastet sind. Die Riemenstartergenerator give rise to the advantages that a consumption advantage can be achieved, and corresponding crankshaft bearings are not burdened by a belt tension. The
Hybridantriebsstranganordnung weist ein gutes Rekuperationspotential auf, da der Hybrid powertrain arrangement has a good Rekuperationspotential because of
Verbrennungsmotor nicht mitgeschleppt werden muss. Combustion engine does not have to be carried along.
Die erste und/oder die zweite Kupplung können als nasslaufende Reibkupplungen ausgebildet sein. Die beiden Kupplungen und das Differential können in einem gemeinsamen Ölraum angeordnet sein. Der Ölraum kann sich dabei auch in den Bereich der E-Maschine erstrecken. Wenn die E-Maschine ein entsprechendes Differential antreibt, ist daher eine entsprechende Schmierung der drehenden Bauteile ermöglicht. Die erste Kupplung weist ausgangsseitig insbesondere ein in einem Trockenraum angeordnetes Ausgangszahnrad auf. Das Ausgangszahnrad steht im kämmenden Eingriff mit dem im Trockenraum angeordneten The first and / or the second clutch may be designed as wet-running friction clutches. The two clutches and the differential can be arranged in a common oil chamber. The oil space can also extend into the area of the electric motor. If the electric motor drives a corresponding differential, therefore, a corresponding lubrication of the rotating components is possible. The first coupling has an output side in particular arranged in a drying room output gear. The output gear is in meshing engagement with that in the dry space
Anlasserzahnrad. Das Anlasserzahnrad und das Ausgangszahnrad sind in dem Trockenraum angeordnet. Das Anlasserzahnrad ist vorzugsweise über einen (Anlasserzahnrad-)Freilauf von dem Verbrennungsmotor abgekoppelt, solange der Verbrennungsmotor die Kurbelwelle antreibt. Hierdurch ist eine Belastung des trockenlaufenden Anlasserzahnrads und des trockenlaufenden Ausgangszahnrads verringert. Die E-Maschine kann bei höheren Starter gear. The starter gear and the output gear are arranged in the drying room. The starter gear is preferably decoupled from the engine via a freewheel (crank gear) as long as the engine drives the crankshaft. As a result, a load on the dry-running starter gear and the dry-running output gear is reduced. The electric machine can be at higher
Fahrgeschwindigkeiten während eines Betriebs des Verbrennungsmotors abgekoppelt werden. Da das Anlasserzahnrad dabei einerseits über die erste Kupplung von der E-Maschine abgekoppelt ist und zum anderen über den Freilauf von dem Verbrennungsmotor abgekoppelt ist, steht das Anlasserzahnrad während dieses Betriebes. Durch eine Verwendung eines permanent eingespurten, trockenlaufenden Ausgangszahnrad insbesondere mit dem Driving speeds are decoupled during operation of the internal combustion engine. Since the starter gear is decoupled on the one hand via the first clutch of the electric motor and is decoupled to the other on the freewheel of the engine, the starter gear is during this operation. By using a permanently eingepurtten, dry-running output gear in particular with the
entsprechenden Freilauf ist ferner eine verbesserte Akustik beim Startvorgang gegeben. Es ist ferner durch den Freilauf ein Zeitgewinn beim Wiederstart im„Change of Mind" in dem Fall gegeben, wenn die Kurbelwelle zwar noch nicht ganz steht, aber der Verbrennungsmotor dennoch wieder gestartet werden soll. corresponding freewheel further improved acoustics during startup is given. It is also given by the freewheel a time gain when restarting the "Change of Mind" in the case when the crankshaft is not quite there, but the engine should still be started again.
Der erfindungsgemäße Hybridantriebsstrang weist insbesondere ein entsprechendes The hybrid powertrain according to the invention has in particular a corresponding one
Handschalt-, Automat- und/oder Doppelkupplungsgetriebe vorzugsweise ohne Allradantrieb auf. Es ist denkbar, die erste Kupplung ebenfalls als Freilauf bzw. als eine Überholkupplung auszugestalten. Der ersten Kupplung kann ein Betätigungskolben zugeordnet sein. Um nun die erste Kupplung in der Grundstellung geschlossen zu halten, ist der Betätigungskolben durch ein Federmittel in die geschlossene Stellung der ersten Kupplung vorgespannt. Durch ein entsprechendes Federmittel beziehungsweise eine Federvorspannung ist eine Startfunktion auch im Fehlerfall der Doppelkupplung gegeben. Zum Betätigen der beiden Kupplungen ist nur eine Betätigungskraft nötig. Manual, automatic and / or dual-clutch gearbox preferably without four-wheel drive on. It is conceivable to design the first clutch also as a freewheel or as an overrunning clutch. The first clutch may be associated with an actuating piston. In order now to keep the first clutch closed in the basic position, the actuating piston is biased by a spring means in the closed position of the first clutch. By a corresponding spring means or a spring preload a start function is given even in case of failure of the double clutch. To actuate the two clutches only one actuating force is required.
Die eingangs genannten Nachteile sind daher vermieden und entsprechende Vorteile sind erzielt. The aforementioned disadvantages are therefore avoided and corresponding advantages are achieved.
Es gibt nun eine Vielzahl von Möglichkeiten, den erfindungsgemäßen Hybridantriebsstrang in vorteilhafter Art und Weise auszugestalten und weiterzubilden. Hierfür darf zunächst auf die dem Patentanspruch 1 nachgeordneten Patentansprüche verwiesen werden. Im Folgenden werden zwei bevorzugte Ausgestaltungen des Hybridantriebsstrangs anhand der Zeichnung und der dazugehörigen Beschreibung näher erläutert. There are now a variety of ways to design and develop the hybrid powertrain according to the invention in an advantageous manner. For this purpose, reference may first be made to the claims subordinate to claim 1. In the following two preferred embodiments of the hybrid powertrain will be explained in more detail with reference to the drawing and the associated description.
In der Zeichnung zeigt: Fig. 1 in einer schematischen, geschnittenen Darstellung einen Teil eines ersten Hybridantriebsstrangs, In the drawing shows: 1 is a schematic, sectional view of a portion of a first hybrid powertrain,
Fig. 2 in einer schematischen Darstellung einen Teil eines zweiten Fig. 2 is a schematic representation of part of a second
Hybridantriebsstrangs, und  Hybrid powertrain, and
Fig. 3 in einer schematischen Darstellung einen Teil eines dritten Fig. 3 is a schematic representation of part of a third
Hybridantriebsstrangs.  Hybrid powertrain.
In Fig. 1 ist ein erster Hybridantriebsstrang 1 , in Fig. 2 ist ein zweiter Hybridantriebsstrang 2 und in Fig. 3 ist ein dritter Hybridantriebsstrang 3 zumindest teilweise dargestellt. Zunächst darf auf die Gemeinsamkeiten der Hybridantriebsstränge 1 bis 3 näher eingegangen werden, wobei für im wesentlichen gleiche oder funktional gleich wirkende Bauteile gleiche Bezugszeichen verwendet werden. Die Hybridantriebsstränge 1 bis 3 sind zum Einsatz in einem Kraftfahrzeug geeignet. Die Hybridantriebsstränge 1 bis 3 umfassen jeweils einen Verbrennungsmotor, der in den Fig. 1 bis 3 nicht dargestellt ist. Der Verbrennungsmotor kann als Ottomotor oder als Dieselmotor ausgebildet sein. In Fig. 1, a first hybrid powertrain 1, in Fig. 2 is a second hybrid powertrain 2 and in Fig. 3, a third hybrid powertrain 3 is at least partially shown. First, the common features of the hybrid powertrains 1 to 3 may be discussed in greater detail, wherein the same reference numerals are used for substantially the same or functionally equal components. The hybrid powertrains 1 to 3 are suitable for use in a motor vehicle. The hybrid drive trains 1 to 3 each include an internal combustion engine, which is not shown in Figs. 1 to 3. The internal combustion engine can be designed as a gasoline engine or as a diesel engine.
Ferner umfassen die Hybridantriebsstränge 1 bis 3 jeweils eine E-Maschine 4. Die E-Maschine 4 kann vorzugsweise als Motor und als Generator verwendet werden, und somit entsprechende Hybridfunktionen bereitstellen. Die E-Maschine 4 kann insbesondere als 48 Volt-E-Maschine ausgebildet sein. Die Betriebsspannung kann in wesentlichen 48 Volt betragen. Die E-Maschine 4 weist einen Stator 5 und einen Rotor 6 auf. Die E-Maschine 4 kann als Asynchronmotor ausgebildet sein. Die E-Maschine 4 kann wie noch näher beschrieben wird zum Starten des Verbrennungsmotors genutzt werden. Further, the hybrid powertrains 1 to 3 each include an electric machine 4. The electric machine 4 may be preferably used as a motor and a generator, thus providing corresponding hybrid functions. The electric motor 4 can be designed in particular as a 48 volt electric motor. The operating voltage can be substantially 48 volts. The electric machine 4 has a stator 5 and a rotor 6. The electric motor 4 can be designed as an asynchronous motor. The electric motor 4 can be used as described in more detail for starting the internal combustion engine.
Ferner weist der Hybridantriebsstrang 1 , 2, 3 jeweils ein Differential 7, 8 auf. Die in Fig. 1 und 2 dargestellten Differentiale 7 sind als Kegelraddifferential 9 ausgebildet. Das Differential 8 ist als Stirnraddifferential 10 ausgebildet. Further, the hybrid powertrain 1, 2, 3 each have a differential 7, 8. The differentials 7 shown in FIGS. 1 and 2 are designed as bevel gear differential 9. The differential 8 is designed as a spur gear differential 10.
Der Verbrennungsmotor treibt nun zunächst einen Torsionsdämpfer 1 1 an. Der The internal combustion engine now first drives a torsion damper 1 1. Of the
Torsionsdämpfer 1 1 ist hierbei mit einer entsprechenden Welle 12 verbunden. Das Torsion damper 1 1 is in this case connected to a corresponding shaft 12. The
Drehmoment des Verbrennungsmotors wird danach einem nicht dargestellten Getriebe zugeführt, wobei mittels des Getriebes insbesondere mehrere Gangstufen schaltbar sind. Torque of the internal combustion engine is then supplied to a transmission, not shown, in particular by means of the transmission, in particular a plurality of gear ratios are switchable.
Das Drehmoment wird von einem Ausgang des Getriebes nun auf das entsprechende The torque is transmitted from one output of the transmission to the corresponding one
Differential 7, 8 weitergeleitet, wobei das Differential 7, 8 die Leistung auf zwei Achswellen 13, 14 aufteilt. Die in den Fig. 1 bis 3 dargestellte Achswelle 14 ist dabei mit dem Differential ausgangsseitig über eine Zwischenwelle 15 gekoppelt. Die Zwischenwelle 15 ist vorzugsweise als Vollwelle ausgestaltet. Die E-Maschine 4 ist auf der Zwischenwelle 15 angeordnet. Differential 7, 8 forwarded, the differential 7, 8, the power on two axle shafts 13, 14 divided. The axle shaft 14 shown in FIGS. 1 to 3 is in this case with the differential output coupled via an intermediate shaft 15. The intermediate shaft 15 is preferably designed as a solid shaft. The electric motor 4 is arranged on the intermediate shaft 15.
Hierdurch ist ein kompaktbauender Hybridantriebsstrang 1 bis 3 ermöglicht. Die Zwischenwelle 15 kann auch einstückig mit der Antriebswelle 14, als ein ihr Abteil, ausgeführt werden. Das am Getriebeausgang anliegende Drehmoment wird zunächst einem Differentialgehäuse 16, 17 zugeleitet. In dem Differentialgehäuse 16, 17 sind entsprechende Kegelräder 18 As a result, a compact construction hybrid powertrain 1 to 3 allows. The intermediate shaft 15 may also be made integral with the drive shaft 14 as a compartment thereof. The voltage applied to the transmission output torque is first fed to a differential housing 16, 17. In the differential housing 16, 17 are corresponding bevel gears 18th
beziehungsweise Ausgleichsräder 19 drehbar gelagert. Die Kegelräder 18 beziehungsweise die Ausgleichsräder 19 teilen das Drehmoment beziehungsweise die Leistung auf die or differential gears 19 rotatably mounted. The bevel gears 18 and the differential gears 19 share the torque or the power to the
entsprechenden Achsräder 20, 21 auf, wobei die Achsräder 20, 21 im Fall der corresponding axle wheels 20, 21, wherein the axle wheels 20, 21 in the case of
Kegelraddifferentiale 9 als Kegelachsräder (nicht näher bezeichnet) ausgeführt sind und im Fall des Stirnraddifferentials 10 (vgl. Fig. 3) als Stirnräder ausgebildet sind. Bevel gear differentials 9 as Kegelachsräder (unspecified) are executed and in the case of Stirnraddifferentials 10 (see Fig .. 3) are formed as spur gears.
Das Achsrad 20 ist dabei drehfest mit einem nicht näher bezeichneten Achsstummel der Achswelle 13 verbunden. Das Achsrad 21 sitzt auf einem entsprechenden Achsende (nicht näher bezeichnet) der Zwischenwelle 15 auf. Das andere Ende der Zwischenwelle 15 ist wiederum drehfest mit einem entsprechenden Achsstummel der Achswelle 14 verbunden. The axle 20 is rotatably connected to an unspecified stub axle of the axle 13. The axle 21 is seated on a corresponding axle end (unspecified) of the intermediate shaft 15. The other end of the intermediate shaft 15 is in turn rotatably connected to a corresponding stub axle of the axle shaft 14.
Der Rotor 6 der E-Maschine 4 ist hohl ausgebildet und insbesondere mittels entsprechender Lager 22 auf der Zwischenwelle 15 gelagert. Der Rotor 6 ist vorzugsweise drehfest mit einem Sonnenrad 23 verbunden. Die Planetengetriebestufe 24 weist ferner mindestens einen, insbesondere mehrere Planetenräder 25 und ein Hohlrad 26 auf. Die Planetenräder stehen im kämmenden Eingriff sowohl mit dem Hohlrad 26 als auch mit dem Sonnenrad 23. Das Hohlrad 26 ist hier gehäusefest an einem Gehäuse 27 angeordnet. Die Planetenräder 25 sind an einem Steg 28 angeordnet, wobei der Steg 28 drehfest mit einer Nabe 29 verbunden ist. The rotor 6 of the electric motor 4 is hollow and mounted in particular by means of corresponding bearings 22 on the intermediate shaft 15. The rotor 6 is preferably non-rotatably connected to a sun gear 23. The planetary gear stage 24 further comprises at least one, in particular a plurality of planet gears 25 and a ring gear 26. The planet gears are in meshing engagement both with the ring gear 26 and with the sun gear 23. The ring gear 26 is fixed to the housing fixed to a housing 27 here. The planet gears 25 are arranged on a web 28, wherein the web 28 is rotatably connected to a hub 29.
Die Planetengetriebestufe 24 übersetzt das Drehmoment der E-Maschine 4 vorzugsweise mit einer Übersetzung von i = 3,8; es sind jedoch auch andere Übersetzungen denkbar. Die Nabe 29 ist über eine erste Kupplung 30 funktional wirksam mit einem Zahnrad 31 koppelbar. Die erste Kupplung 30 ist dabei ausgangsseitig mit einer Hülse 32 verbunden, wobei die Hülse 32 über ein Lager 33 an der Innenseite des Gehäuses 27 drehbar gelagert ist und über eine nicht bezeichnete Verzahnung mit dem Zahnrad 31 drehfest verbunden ist. In der in Fig. 1 und 3 dargestellten Ausgestaltung ist die erste Kupplung 30 als Lamellenkupplung 34 ausgebildet. In der in Fig. 2 dargestellten Ausgestaltung ist die erste Kupplung 30 als Freilauf 35 ausgestaltet. Der Freilauf 35 kann auch als Überholkupplung bezeichnet werden. Die Hülse 32 dient in der Ausgestaltung mit der Lamellenkupplung 34 entsprechend als Außenlamellenträger. Die Nabe 29 trägt dabei wechselweise mit den Außenlamellen geschichtete Innenlamellen. Die The planetary gear stage 24 preferably translates the torque of the electric motor 4 with a ratio of i = 3.8; However, other translations are conceivable. The hub 29 is operatively connected via a first clutch 30 with a gear 31 coupled. The first clutch 30 is connected on the output side to a sleeve 32, wherein the sleeve 32 is rotatably supported via a bearing 33 on the inside of the housing 27 and is rotatably connected via a non-designated toothing with the gear 31. In the embodiment shown in FIGS. 1 and 3, the first clutch 30 is designed as a multi-plate clutch 34. In the embodiment shown in Fig. 2, the first clutch 30 is designed as a freewheel 35. The freewheel 35 may also be referred to as an overrunning clutch. The sleeve 32 is used in the embodiment with the multi-plate clutch 34 accordingly as outer disc carrier. The hub 29 carries alternately laminated with the outer plates inner plates. The
Lamellenkupplung 34 weist ein entsprechendes Lamellenpaket, bestehend aus den Multi-plate clutch 34 has a corresponding plate pack, consisting of the
Außenlamellen und den Innenlamellen auf. Durch Betätigen des Lamellenpaketes kann die Lamellenkupplung 34 geschlossen werden und so entsprechend der Übersetzung der Outside fins and the inner fins on. By pressing the disk pack, the Multi-plate clutch 34 are closed and so according to the translation of
Planetengetriebestufe 24 ein Drehmoment von der E-Maschine 4 auf das Zahnrad 31 übertragen. Das Zahnrad 31 wiederum steht im kämmenden Eingriff mit einem Anlasserzahnrad 36. Die E-Maschine 4 ist somit über die erste Kupplung 30 mit dem Anlasserzahnrad 36 verbindbar. Planetary gear 24 transmitted torque from the electric motor 4 to the gear 31. The gear 31 in turn is in meshing engagement with a starter gear 36. The electric motor 4 is thus connected via the first clutch 30 to the starter gear 36.
Das Anlasserzahnrad 36 ist Teil eines Zahnkranzes 37. Der Zahnkranz 37 ist an seinem The starter gear 36 is part of a ring gear 37. The ring gear 37 is at his
Innenumfang, insbesondere mittels eines Lagers 38 drehbar gelagert. Das Anlasserzahnrad 36 ist nun funktional wirksam mit der Welle 12 verbunden oder verbindbar, so dass durch Inner circumference, in particular by means of a bearing 38 rotatably mounted. The starter gear 36 is now operatively connected to the shaft 12 or connectable, so that
Schließen der ersten Kupplung 30 der Verbrennungsmotor mittels der E-Maschine 4 startbar ist. In der dargestellten, besonders bevorzugten Ausgestaltung ist das Anlasserzahnrad 36 über einen weiteren Freilauf 39 funktional wirksam mit einer Kurbelwellenanordnung 40 (nur teilweise dargestellt) koppelbar. Die Kurbelwellenanordnung 40 ist mit einer Welle 12 Closing of the first clutch 30 of the internal combustion engine by means of the electric motor 4 is startable. In the illustrated, particularly preferred embodiment, the starter gear 36 via a further freewheel 39 is functionally effective with a crankshaft assembly 40 (only partially shown) coupled. The crankshaft assembly 40 is provided with a shaft 12
verbunden zur Weiterleitung des Drehmomentes an das Getriebe. Das trockenlaufende connected to forward the torque to the transmission. The dry-running
Ausgangszahnrad 31 , das Anlasserzahnrad 36 und der Freilauf bilden zusammen einen permanent eingespurten Starter. Der Freilauf 39 kann insbesondere als Klemmkörperfreilauf ausgestaltet sein. Durch den permanent eingespurten Starter ist die Akustik, insbesondere beim Startvorgang verbessert. Output gear 31, the starter gear 36 and the freewheel together form a permanently starter starter. The freewheel 39 can be designed in particular as a sprag freewheel. Due to the permanently installed starter, the acoustics are improved, especially during the starting process.
Die eingangs genannten Nachteile sind nun dadurch vermieden, dass die E-Maschine 4 über eine zweite Kupplung 41 mit dem Differential 7, 8 koppelbar ist. In der dargestellten The disadvantages mentioned above are now avoided in that the electric motor 4 can be coupled via a second clutch 41 to the differential 7, 8. In the illustrated
Ausgestaltung ist die zweite Kupplung 41 als Lamellenkupplung ausgebildet. Das Embodiment, the second clutch 41 is formed as a multi-plate clutch. The
entsprechende Lamellenpaket (nicht näher bezeichnet) weist von einem Innenlamellenträger 43 getragene Innenlamellen und von einem Außenlamellenträger 44 getragene Außenlamellen auf. Die Innenlamellen und die Außenlamellen sind wechselweise zueinander geschichtet. Der Außenlamellenträger 44 ist hier mehrfach gekröpft ausgebildet. Der Außenlamellenträger 44 ist ferner drehfest mit dem entsprechenden Differentialgehäuse 16, 17 verbunden. Zur Betätigung der zweiten Kupplung 41 , nämlich insbesondere der Lamellenkupplung 42 ist nun ein axial verschiebbarer Betätigungskolben 45 vorgesehen. Der Betätigungskolben 45 ist durch ein Federmittel 46 derart vorgespannt, so dass in einer Grundstellung der zweiten Kupplung 41 die zweite Kupplung 41 geöffnet ist. In der in Fig. 2 dargestellten Ausgestaltung wirkt der corresponding plate pack (unspecified) has supported by an inner disk carrier 43 inner disks and supported by an outer disk carrier 44 outer disks. The inner plates and the outer plates are stacked alternately. The outer disk carrier 44 is formed here several cranked. The outer disk carrier 44 is further rotatably connected to the corresponding differential housing 16, 17. For actuating the second clutch 41, namely in particular the multi-plate clutch 42, an axially displaceable actuating piston 45 is now provided. The actuating piston 45 is biased by a spring means 46 such that in a basic position of the second clutch 41, the second clutch 41 is opened. In the embodiment shown in Fig. 2 of the acts
Betätigungskolben 45 lediglich auf die zweite Kupplung 41 , nämlich die Lamellenkupplung 42. Im Fall der Ausgestaltung gem. Fig. 1 und Fig. 2 ist der Betätigungskolben 45 doppeltwirkend ausgebildet, so dass der Betätigungskolben 45 durch das Federmittel 46 in eine schließende Stellung der ersten Kupplung 30 gedrängt wird. In der Grundstellung ist daher die erste Actuating piston 45 only to the second clutch 41, namely the multi-plate clutch 42. In the case of the embodiment acc. 1 and 2, the actuating piston 45 is double-acting, so that the actuating piston 45 is urged by the spring means 46 into a closing position of the first clutch 30. In the basic position is therefore the first
Kupplung 30 geschlossen, wodurch der Verbrennungsmotor stets mittels der E-Maschine 4 gestartet werden kann. Es ist eine Startfunktion durch das Federmittel 46 in Form der Clutch 30 is closed, whereby the internal combustion engine can always be started by means of the electric motor 4. It is a starting function by the spring means 46 in the form of
Andrückfeder auch im Fehlerfall gegeben. Durch Öffnen der ersten Kupplung 30 kann der Zahnkranz 37 zusammen mit dem Anlasserzahnrad 36 abgekoppelt werden. Durch den zusätzlichen Freilauf 39 steht dabei der entsprechende Zahnkranz 37. Der Zahnkranz 37 ist dabei durch den Freilauf 39 vom Pressure spring also given in the event of a fault. By opening the first clutch 30, the ring gear 37 can be decoupled together with the starter gear 36. By the additional freewheel 39 is thereby the corresponding sprocket 37. The sprocket 37 is thereby by the freewheel 39 from
Verbrennungsmotor und damit von der Kurbelwellenanordnung 40 abgekoppelt und über die erste Kupplung 30 von der E-Maschine 4 getrennt. Wenn nun das Fahrzeug rein elektrisch bewegt werden soll, so kann der Verbrennungsmotor über eine nicht dargestellte Kupplung von dem Getriebe getrennt werden und zusätzlich die erste Kupplung 30 geöffnet werden, wodurch die E-Maschine 4 vom Verbrennungsmotor abgekoppelt ist. Hierdurch ist das Combustion engine and thus decoupled from the crankshaft assembly 40 and separated via the first clutch 30 of the electric motor 4. If now the vehicle is to be moved purely electrically, then the internal combustion engine can be separated from the transmission via a clutch, not shown, and in addition the first clutch 30 can be opened, whereby the electric motor 4 is decoupled from the internal combustion engine. This is the result
Rekuperationspotential verbessert, da der Verbrennungsmotor nicht während einer rein elektrischen Fahrt mitgeschleppt werden muss. Die E-Maschine 4 kann insbesondere bei höheren Geschwindigkeiten abgekoppelt werden, wobei der Zahnkranz 37 sowohl von der E- Maschine 4 über die erste Kupplung 30 als auch von dem Verbrennungsmotor über den Freilauf 39 abgekoppelt ist und entsprechend steht. Recuperation potential improved since the internal combustion engine does not have to be carried along during a purely electric drive. The electric motor 4 can be decoupled in particular at higher speeds, wherein the ring gear 37 is decoupled both from the electric motor 4 via the first clutch 30 and from the internal combustion engine via the freewheel 39 and stands accordingly.
Das Zahnrad 31 ist insbesondere in einem Trockenraum 47 koaxial mit der Zwischenwelle 15 angeordnet. Die E-Maschine 4, die erste Kupplung 30 sowie die zweite Kupplung 41 sowie das entsprechende Differential 7, 8 sind in einem Nassraum 48 mit entsprechendem Öl (nicht dargestellt) angeordnet. Der Trockenraum 47 und der Nassraum 48 sind im Bereich des Zahnrades 31 insbesondere durch zwei Dichtmittel 49 an dem Gehäuse 27 und am weiteren Gehäuseteil 50 abgedichtet. Zwischen dem Zahnrad 31 , dem weiteren Gehäuseteil 50 und der Hülse 32 sind entsprechend nicht näher bezeichnete Lager angeordnet und das Zahnrad 31 ist mittels einer nicht näher bezeichneten Dichtung, vorzugsweise eines O-Rings, gegen die Hülse 32 abgedichtet. Der Nassraum 48 ist dann dem Differential 7, 9 und dem Planetengetriebe 24 bzw. der E-Maschine 4 gemeinsam, wobei eine Verbindung zwischen diesen beiden seinen Teilen mittels der Ringräume sowohl zwischen dem Zahnrad 31 und der Hülse 32, als auch der Hülse und der Zwischenwelle 15 sichergestellt ist. The gear 31 is arranged in particular in a drying chamber 47 coaxial with the intermediate shaft 15. The electric motor 4, the first clutch 30 and the second clutch 41 and the corresponding differential 7, 8 are arranged in a wet space 48 with corresponding oil (not shown). The drying space 47 and the wet space 48 are sealed in the region of the toothed wheel 31, in particular by two sealing means 49 on the housing 27 and on the further housing part 50. Between the gear 31, the further housing part 50 and the sleeve 32 unspecified bearings are arranged accordingly and the gear 31 is sealed by a unspecified seal, preferably an O-ring, against the sleeve 32. The wet space 48 is then the differential 7, 9 and the planetary gear 24 and the electric motor 4 in common, with a connection between these two its parts by means of the annular spaces both between the gear 31 and the sleeve 32, and the sleeve and the Intermediate shaft 15 is ensured.
Zwischen dem Gehäuseteil 50 und den entsprechenden Differentialgehäusen 16, 17 sind entsprechend weitere Lager 51 angeordnet. Between the housing part 50 and the corresponding differential housings 16, 17 further bearings 51 are arranged accordingly.
Zur Betätigung des Betätigungskolbens 45 ist im Fall der Ausgestaltung gemäß Fig. 1 und Fig. 3 ein Rampensteller 52 mit einem Schneckentrieb 53 verbunden. For actuating the actuating piston 45, in the case of the embodiment according to FIGS. 1 and 3, a ramp plate 52 is connected to a worm drive 53.
Im Fall der Ausgestaltung gemäß Fig. 2 ist der Betätigungskolben 45 an einem Einrücklager 54 axial abgestützt. Das Einrücklager 54 kann durch einen entsprechenden Einrücker 55 axial betätigt und somit der Betätigungskolben 45 gegen die Federspannung zum Betätigen der zweiten Kupplung 41 verschoben werden. Durch die hier beschriebenen Hybridantriebsstränge 1 bis 3 ist in modularer Bauweise ein Mildhybridantnebsstrang beschrieben, der insbesondere für Handschalt-, Automat- und/oder Doppelkupplungsgetriebe geeignet ist. Es ist kein zusätzlicher Riemenstartergenerator notwendig. Es kann eine einfache Lichtmaschine eingesetzt werden. Zum Betätigen der beiden Kupplungen 30, 41 ist nur eine Betätigungskraft nötig. In the case of the embodiment according to FIG. 2, the actuating piston 45 is axially supported on an engagement bearing 54. The engagement bearing 54 can be axially actuated by a corresponding indentor 55 and thus the actuating piston 45 are moved against the spring tension for actuating the second clutch 41. The hybrid drive trains 1 to 3 described here have a modular hybrid design which describes a mild hybrid emergency train which is particularly suitable for manual, automatic and / or dual-clutch transmissions. No additional belt starter generator is necessary. It can be used a simple alternator. To actuate the two clutches 30, 41 only one actuating force is necessary.
Die eingangs genannten Vorteile sind erzielt und entsprechende Nachteile sind vermieden. The advantages mentioned are achieved and corresponding disadvantages are avoided.
Bezugszeichenliste Hybridantriebsstrang Hybrid power train
Hybridantriebsstrang Hybrid powertrain
Hybridantriebsstrang Hybrid powertrain
E-Maschine E-machine
Stator stator
Rotor rotor
Differential differential
Differential differential
Kegelraddifferential bevel gear
Stirnraddifferential spur gear
Torsionsdämpfer Dampers
Welle wave
Achswelle axle shaft
Achswelle axle shaft
Zwischenwelle intermediate shaft
Differentialgehäuse differential case
Differentialgehäuse differential case
Kegelrad bevel gear
Ausgleichsrad pinion
Achsrad axle wheel
Achsrad axle wheel
Lager camp
Sonnenrad sun
Planetengetriebestufe Planetary gear stage
Planetenrad planet
Hohlrad ring gear
Gehäuse casing
Steg web
Nabe hub
erste Kupplung first clutch
Zahnrad gear
Hülse shell
Lager camp
Lamellenkupplung Freilauf multi-plate clutch freewheel
Anlasserzahnrad Zahnkranz Starter gear sprocket
Lager camp
Freilauf freewheel
Kurbelwellenanordnung zweite Kupplung Lamellenkupplung Innenlamellentrager Außenlamellentrager Betätigungskolben Federmittel Crankshaft arrangement second clutch Multi-disc clutch Inner disc carrier External disc carrier Operating piston Spring means
Trockenraum drying room
Nassraum wet room
Dichtmittel sealant
Gehäuseteil housing part
Lager camp
Rampensteller Schneckentrieb Einrücklager Rampensteller worm drive engagement bearing
Einrücker indenter

Claims

Patentansprüche claims
1. Hybridantriebsstrang (1 , 2, 3) für ein Kraftfahrzeug, mit einem Verbrennungsmotor, mit einer E-Maschine (4), mit einem Differential (7, 8), wobei zum Starten des 1. Hybrid drive train (1, 2, 3) for a motor vehicle, with an internal combustion engine, with an electric motor (4), with a differential (7, 8), wherein for starting the
Verbrennungsmotors die E-Maschine (4) über eine erste Kupplung (30) funktional wirksam mit dem Verbrennungsmotor koppelbar ist, dadurch gekennzeichnet, dass die E- Maschine (4) über eine zweite Kupplung (41 ) mit dem Differential (7, 8) koppelbar ist.  Internal combustion engine, the electric motor (4) via a first clutch (30) is functionally effective coupled to the engine, characterized in that the electric motor (4) via a second clutch (41) with the differential (7, 8) coupled is.
2. Hybridantriebsstrang nach Anspruch 1 , dadurch gekennzeichnet, dass mittels des 2. Hybrid drive train according to claim 1, characterized in that by means of
Differentials (7, 8) der Leistungsfluss auf zwei Achswellen (13, 14) funktional wirksam aufteilbar ist, wobei die E-Maschine (4) konzentrisch zu wenigstens einer der Achswellen (13, 14) angeordnet ist.  Differential (7, 8) of the power flow on two axle shafts (13, 14) is functionally effectively split, wherein the electric motor (4) concentric with at least one of the axle shafts (13, 14) is arranged.
3. Hybridantriebsstrang nach Anspruch 2, dadurch gekennzeichnet, dass ein Rotor (6) der E-Maschine (4) auf einer Zwischenwelle (15) drehbar gelagert ist, wobei die Zwischenwelle (15) eine der Achswellen (14) mit dem Differential (7, 8) verbindet. 3. hybrid drive train according to claim 2, characterized in that a rotor (6) of the electric motor (4) is rotatably mounted on an intermediate shaft (15), wherein the intermediate shaft (15) one of the axle shafts (14) with the differential (7 , 8) connects.
4. Hybridantriebsstranganordnung nach einem der vorstehenden Ansprüche, dadurch 4. hybrid drive train arrangement according to one of the preceding claims, characterized
gekennzeichnet, dass die E-Maschine (4) über eine Planetengetriebestufe (24) mit der ersten Kupplung (30) und der zweiten Kupplung (41 ) verbunden ist.  characterized in that the electric motor (4) via a planetary gear stage (24) with the first clutch (30) and the second clutch (41) is connected.
5. Hybridantriebsstrang nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die zweite Kupplung (41 ) ausgangsseitig mit einem Differentialgehäuse (16, 17) drehfest gekoppelt ist, wobei das Differentialgehäuse (16, 17) mindestens ein Kegelrad (18) und/oder mindestens ein Ausgleichsrad (19) trägt. 5. Hybrid drive train according to one of the preceding claims, characterized in that the second clutch (41) on the output side with a differential housing (16, 17) is rotatably coupled, wherein the differential housing (16, 17) at least one bevel gear (18) and / or at least a compensating wheel (19) carries.
6. Hybridantriebsstrang nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die zweite Kupplung (41 ) als Lamellenkupplung (42) ausgebildet ist, wobei die Lamellenkupplung (42) mittels eines Betätigungskolbens (45) betätigbar ist. 6. Hybrid drive train according to one of the preceding claims, characterized in that the second clutch (41) is designed as a multi-disc clutch (42), wherein the multi-disc clutch (42) by means of an actuating piston (45) is actuated.
7. Hybridantriebsstrang nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass der Betätigungskolben (45) durch ein Federmittel (46) derart vorgespannt ist, dass in der Grundstellung die zweite Kupplung (41 ) geöffnet ist. 7. hybrid drive train according to the preceding claim, characterized in that the actuating piston (45) by a spring means (46) is biased such that in the normal position, the second clutch (41) is opened.
8. Hybridantriebsstrang nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die erste Kupplung (30) als Lamellenkupplung (34) ausgebildet ist, wobei in der Grundstellung die erste Kupplung (30) geschlossen ist wobei der Betätigungskolben (45) als doppelt wirkender Betätigungskolben (45) ausgebildet ist und die beiden 8. Hybrid drive train according to one of the preceding claims, characterized in that the first clutch (30) is designed as a multi-disc clutch (34), wherein in the Basic position, the first clutch (30) is closed, wherein the actuating piston (45) is designed as a double-acting actuating piston (45) and the two
Lammellenkupplungen (34, 42) betätigen kann.  Lichellenkupplungen (34, 42) can operate.
9. Hybridantriebsstrang nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die erste Kupplung (30) als Freilauf (35) ausgebildet ist. 9. Hybrid drive train according to one of the preceding claims, characterized in that the first clutch (30) is designed as a freewheel (35).
10. Hybridantriebsstrang nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die erste Kupplung (30) ausgangsseitig ein Zahnrad (31 ) antreibt, wobei das Zahnrad (31 ) im kämmenden Eingriff mit einem Anlasserzahnrad (36) steht. 10. Hybrid drive train according to one of the preceding claims, characterized in that the first clutch (30) on the output side a gear (31) drives, wherein the gear (31) is in meshing engagement with a starter gear (36).
1 1. Hybridantriebsstrang nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass das Anlasserzahnrad (36) über einen Freilauf (39) mit einer von dem Verbrennungsmotor angetriebenen Kurbelwellenanordnung (40) in Verbindung steht. 1 1. A hybrid powertrain according to the preceding claim, characterized in that the starter gear (36) via a freewheel (39) with a driven by the internal combustion engine crankshaft assembly (40) is in communication.
12. Hybridantriebsstrang nach einem der beiden vorstehenden Ansprüche, dadurch 12. Hybrid drive train according to one of the two preceding claims, characterized
gekennzeichnet, dass das Anlasserzahnrad (36) und das Zahnrad (31 ) in einem  characterized in that the starter gear (36) and the gear (31) in one
Trockenraum (47) angeordnet sind, wobei die E-Maschine (4), die beiden Kupplungen (30, 41 ) und das Differential (7, 8) in einem Nassraum (48) angeordnet sind.  Drying space (47) are arranged, wherein the electric motor (4), the two clutches (30, 41) and the differential (7, 8) in a wet space (48) are arranged.
13. Hybridantriebsstrang nach einem der beiden vorstehenden Ansprüche, dadurch 13. Hybrid drive train according to one of the two preceding claims, characterized
gekennzeichnet, dass der Trockenraum (47) und der Nassraum (48) im Bereich des Zahnrades (31 ) durch Dichtmittel (49) an einem Gehäuse (27) und einem Gehäuseteil (50) abgedichtet sind  characterized in that the drying space (47) and the wet space (48) in the region of the toothed wheel (31) are sealed by sealing means (49) on a housing (27) and a housing part (50)
PCT/EP2015/069888 2014-09-05 2015-09-01 Hybrid drive train for a motor vehicle WO2016034551A1 (en)

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DE102014217762.6 2014-09-05

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DE (1) DE102014217762A1 (en)
WO (1) WO2016034551A1 (en)

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CN106660441B (en) 2020-04-28
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