WO2020201331A1 - Procédé pour faire fonctionner une chaîne cinématique d'un véhicule automobile - Google Patents

Procédé pour faire fonctionner une chaîne cinématique d'un véhicule automobile Download PDF

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Publication number
WO2020201331A1
WO2020201331A1 PCT/EP2020/059217 EP2020059217W WO2020201331A1 WO 2020201331 A1 WO2020201331 A1 WO 2020201331A1 EP 2020059217 W EP2020059217 W EP 2020059217W WO 2020201331 A1 WO2020201331 A1 WO 2020201331A1
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WO
WIPO (PCT)
Prior art keywords
combustion engine
internal combustion
drive train
torque converter
coupling device
Prior art date
Application number
PCT/EP2020/059217
Other languages
German (de)
English (en)
Inventor
Monika Rössner
Gerald Viernekes
Original Assignee
Zf Friedrichshafen Ag
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 Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO2020201331A1 publication Critical patent/WO2020201331A1/fr

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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
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B60W10/023—Fluid clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B60W10/024—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches including control of torque converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B60W10/024—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches including control of torque converters
    • B60W10/026—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches including control of torque converters of lock-up clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/42—Clutches or brakes
    • B60Y2400/421—Dog type clutches or brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/42—Clutches or brakes
    • B60Y2400/424—Friction clutches
    • B60Y2400/4244—Friction clutches of wet type, e.g. using multiple lamellae
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/42—Clutches or brakes
    • B60Y2400/426—Hydrodynamic couplings, e.g. torque converters
    • 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 method for operating a drive train for a motor vehicle, which drive train has at least one internal combustion engine and one electrical machine.
  • Such drive trains are basically known from the prior art.
  • the internal combustion engine can be decoupled or coupled by means of a coupling device in order to drive the motor vehicle in addition to or as an alternative to the drive brought about by the electric machine.
  • a coupling device for example, it is possible to start the internal combustion engine by closing a corresponding clutch device in that the electrical machine provides energy for starting the internal combustion engine accordingly.
  • the electrical machine is designed accordingly in order to have sufficient power reserves in defined operating states, in particular across all operating states, in order to be able to start the internal combustion engine reliably.
  • the electrical machine has to be designed to be relatively too large in a large number of operating states or viewed across the operation of the electrical machine.
  • the invention is based on the object of specifying an improved method for operating a drive train in which, in particular, a more efficient starting of the internal combustion engine is possible.
  • the drive train according to the invention comprises an internal combustion engine and an electric machine. Furthermore, the drive train comprises a torque converter comprising a movable or moving mass and at least one coupling device for the releasable connection of the internal combustion engine to the torque converter. To start the internal combustion engine, a coupling between the torque converter and the internal combustion engine can be established via the at least one coupling device, with a movement required for starting the internal combustion engine at least one component of the torque converter is provided at least partially by the moving mass.
  • the invention is therefore based on the knowledge that it is possible to use the moving mass of the torque converter or the moving mass of at least one component of the torque converter, for example the converter housing, a paddle wheel of the torque converter or the like, in order to use the energy for starting of the internal combustion engine.
  • the inertia of the moving mass of at least one component of the torque converter is used to cause the internal combustion engine to start when the clutch device is closed, ie, the connection between the torque converter and the internal combustion engine.
  • the internal combustion engine can be coupled to the housing of the torque converter with the coupling device via its crankshaft or a crankshaft connected to the internal combustion engine.
  • the moving mass of the at least one component of the torque converter is therefore used as a flywheel mass to start or “pull up” the internal combustion engine through the inertial mass of the at least one component.
  • the moving mass of the at least one component of the torque converter can be composed differently, depending on the structure of the torque converter or the components arranged within the torque converter.
  • one or more components can contribute to the moving mass. This is particularly dependent on how the individual components of the torque converter are connected to one another or can be coupled or coupled.
  • the moving mass is provided by at least one working fluid, in particular oil.
  • a working fluid for example oil
  • a working fluid for example oil
  • the starting process usually performed by the electrical machine or the energy usually provided by the electrical machine can thus be provided at least partially by the working fluid within the torque converter.
  • the moving mass can be provided by at least one section of a housing wall and / or by the moving mass of at least one blade of the torque converter, in particular by the pump wheel or turbine wheel.
  • the housing wall of the torque converter and / or a shovel, both of which are moved during operation of the torque converter and thus have a certain amount of energy, can be used by coupling to the internal combustion engine, by means of the coupling device, to at least partially deliver the energy and thus contribute to the starting process of the internal combustion engine.
  • the moving mass is provided by at least one damping device, comprising at least one damping element, in particular a centrifugal pendulum mass or at least a partial mass of a dual mass flywheel.
  • at least one damping device comprising at least one damping element, in particular a centrifugal pendulum mass or at least a partial mass of a dual mass flywheel.
  • any moving mass of a damping device can be used independently of the specific design of the damping device, which is arranged, for example, within the converter housing or the housing of the drive train.
  • masses of torsional damping devices, centrifugal pendulums, dual mass flywheels and the like can be used to facilitate or bring about a starting of the internal combustion engine.
  • a converter clutch designed as a multi-plate clutch can be arranged within the converter housing or the housing of the drive train.
  • the moving mass can therefore be provided by the at least one lamella of the converter clutch within the converter housing.
  • those discs of the inner disc carrier or outer disc carrier are used that are in motion and when the clutch device is closed to couple the internal combustion engine to the drive train, can transfer energy to the internal combustion engine in order to start it.
  • the converter clutch is closed to start the internal combustion engine.
  • the components of the drive train additionally moved by the closed converter clutch can be coupled to the internal combustion engine in order to start it.
  • the other outer disk carrier or inner disk carrier is also moved because of the closed converter clutch and can thus also contribute energy to starting the internal combustion engine.
  • the moving mass is sufficient to cause the internal combustion engine to start up on its own, so that ultimately as little energy as possible, in particular no energy at all, has to be provided by the electric machine for starting the internal combustion engine.
  • the electrical machine can thereby advantageously be dimensioned more efficiently and thus operated more efficiently via the operation of the drive train.
  • the starting of the internal combustion engine can also be supported by means of the electrical machine.
  • the individual components of the drive train which are arranged in particular within the converter housing, contribute to reducing the energy to be applied by the electrical machine to start the internal combustion engine or, ideally, apply this completely. It may be necessary, in particular depending on the current driving state of the motor vehicle, that a certain amount of energy is applied by means of the electric machine, so that starting the internal combustion engine can be supported by the electric machine.
  • the power reserve that the electrical machine must have to start the internal combustion engine can be reduced compared to known methods for operating a drive train, since in addition to the contribution of energy provided by the electrical machine, the moving mass of parts of the drive train, in particular within the converter housing arranged components of the drive train, contribute to starting the internal combustion engine.
  • the invention relates to a drive train for a motor vehicle, which drive train has at least one internal combustion engine, an electrical machine, a torque converter and a coupling device for the releasable connection of the internal combustion engine to the torque converter Internal combustion engine can be produced, the drive train for performing the method according to the invention, as previously described, is designed.
  • the movement to be generated for starting the internal combustion engine is provided at least partially by the moving mass of a component of the torque converter.
  • the clutch device is arranged in an oil chamber or oil mist chamber of the drive train.
  • the oil in the cooling space or wet space can also be used to operate the clutch device.
  • the coupling device can, for example, as a single-stage or be designed as a two-stage clutch device.
  • the single-stage clutch device can be designed as a friction clutch or the two-stage clutch device can in particular have a partial clutch that is designed as a friction clutch and the two-stage clutch device can have a further partial clutch that is designed as a claw clutch.
  • a first stage of the coupling device can be designed as a force-fit coupling device, in particular as a friction clutch
  • a second stage of the coupling device can be designed as a form-fitting coupling device, in particular as a claw coupling, or have one. It is possible, for example, for the friction clutch to first form a frictional connection in order to close the clutch device and then for the dog clutch to be brought into engagement to transmit higher torques. The starting or coupling of the internal combustion engine to the drive train can thus be improved.
  • FIG. 1 shows a drive train according to a first embodiment
  • FIG. 2 shows a drive train according to a second exemplary embodiment.
  • the two figures show a drive train 1, which is arranged for example in a motor vehicle (not shown).
  • 1 shows a more general illustration of the drive train 1
  • FIG. 2 shows a detailed exemplary embodiment.
  • the drive train 1 has an internal combustion engine 2, an electric machine 3, a torque converter 4 comprising a movable or moving mass and at least one clutch device 5 for releasably connecting the internal combustion engine 2 to the torque converter 4.
  • the internal combustion engine 2 can be operated via the crankshaft 6 assigned to it, which is connected to the clutch device 5, be coupled to the torque converter 4 and the electric machine 3 in order to thus be connected to the drive train 1.
  • the required movement can be provided at least partially by the moving mass of at least one component of the torque converter 4. The provision of the required energy or the application of the required movement is described below using individual examples for components of the torque converter 4.
  • the torque converter 4 has a housing 7, within which housing 7 a working fluid, for example oil, is received in an inner space 8.
  • a working fluid for example oil
  • the working fluid located in the interior 8 is also set in motion. If the clutch device 5 is closed, the moving working fluid can be used to transfer energy to the crankshaft 6 due to the inertia of the working fluid or the mass of the working fluid so that the internal combustion engine 2 can be started or the starting process can be supported can.
  • At least a section of the wall of the housing 7 of the torque converter 4 and / or a blade of the torque converter 4 can be used to at least partially provide the energy required for the starting process. Since both the blade of the torque converter 4 and the housing 7 are in motion during the operation of the drive train 1, for example by coupling a moving rotor 9 of the electrical machine 3, which rotor 9 is moved relative to a stator 10.
  • the drive train 1 also has a damping device 11, which comprises two damping elements 12, 13.
  • the damping elements 12, 13, for example pendulum masses of a centrifugal pendulum or partial masses of a two-mass flywheel are also set in motion so that when the internal combustion engine 2 is connected, ie when the clutch device 5 is closed, the corresponding angular momentum or kinetic energy can be transmitted to the crankshaft 6, so that the moving mass can be used as a flywheel for starting the internal combustion engine 2.
  • the torque converter 4 has a converter clutch 14 which is designed as a multi-disc clutch and therefore has an inner disc carrier 15 and an outer disc carrier 16.
  • the outer disk carrier 16 is connected to the damping device 11 and the inner disk carrier 15 is connected to the housing 7 of the torque converter 4. Accordingly, depending on the opening state of the converter clutch 14, the proportion of the moving mass of the components of the torque converter 4 can be changed, which can contribute to starting the internal combustion engine 2.
  • the converter clutch 14 can be used to start the motor vehicle, in particular to dampen vibrations of the internal combustion engine 2.
  • the converter clutch 14 can be closed, so that the disks of the inner disk carrier 15, as well as the disks of the outer disk carrier 16, as well as the entire damping device 11 can be used as moving mass to start the internal combustion engine 2.
  • the damping device 11 when the damping device 11 is coupled, the vibrations generated by the start-up of the internal combustion engine 2 can be carried out.
  • a damping of Dre hung irregularities that occur when starting the internal combustion engine 2 or during its operation, damped by the damping device 11 who the.
  • the additional clutch device 5 is required for starting, that is, for “starting” the internal combustion engine 2.
  • the coupling device 5 is designed as a two-stage coupling device which has a first stage 17 and a second stage 18.
  • the first stage 17 of the coupling device 5 is designed as a friction clutch and the second stage 18 of the coupling device 5 is designed as a claw clutch. This makes it possible first establish a frictional connection between the components of the first stage 17 of the coupling device 5 by, as shown in this case, the coupling device 5 is actuated hydraulically through speaking channels.
  • the claw clutch can then be brought into a grip in the second stage 18 of the clutch device 5 in order to be able to transmit higher torques in particular to the drive train 1 after the internal combustion engine 2 has been started .
  • the clutch device 5 is arranged in a wet space 19, in particular an oil space of the drive train 1.
  • the exemplary embodiment shown in FIG. 2 is only to be understood as an example.
  • a different arrangement of the individual components of the torque converter 4 is of course also possible.
  • the damping device 11 can be arranged wholly or partially outside a housing 20 of the drive train 1 (FIG. 1), for example on the side of the internal combustion engine 2 in relation to a bearing plate 21.
  • the components or their arrangement of the two exemplary embodiments can be combined as desired .
  • the method according to the invention can be carried out on the drive train 1 or with the drive train 1.

Abstract

L'invention concerne un procédé pour faire fonctionner une chaîne cinématique (1) pour un véhicule automobile, laquelle chaîne cinématique (1) comporte au moins un moteur à combustion interne (2), une machine électrique (3), un convertisseur de couple (4) comprenant une masse mobile ou en mouvement et au moins un dispositif d'accouplement (5) pour relier de manière amovible le moteur à combustion interne (2) au convertisseur de couple (4). Pour le démarrage du moteur à combustion interne (2), un couplage entre le convertisseur de couple (4) et le moteur à combustion interne (2) est établi par l'intermédiaire de l'au moins un dispositif de couplage (5), un mouvement nécessaire pour le démarrage du moteur à combustion interne (2) étant fourni au moins partiellement par la masse déplacée d'au moins un composant du convertisseur de couple (4).
PCT/EP2020/059217 2019-04-04 2020-04-01 Procédé pour faire fonctionner une chaîne cinématique d'un véhicule automobile WO2020201331A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019204785.8A DE102019204785A1 (de) 2019-04-04 2019-04-04 Verfahren zum Betreiben eines Antriebsstrangs für ein Kraftfahrzeug
DE102019204785.8 2019-04-04

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WO2020201331A1 true WO2020201331A1 (fr) 2020-10-08

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007001424A1 (de) * 2007-01-09 2008-07-31 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verfahren zum Starten eines Kolbenmotors
DE102013012155A1 (de) * 2013-07-20 2015-01-22 Daimler Ag Verfahren zum Starten eines Verbrennungsmotors eines Kraftfahrzeugs mit einem Parallelhybridantriebsstrang in einem Fahrzeugstillstand
DE102016202138A1 (de) * 2016-02-12 2017-08-17 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Anlassen einer Verbrennungskraftmaschine sowie Antriebsstrang für ein Kraftfahrzeug
EP3343017A1 (fr) * 2016-12-27 2018-07-04 Volvo Car Corporation Procédé et système pour démarrer un moteur à combustion interne d'un véhicule hybride et véhicule hybride comportant un tel système de démarrage
DE102017217007A1 (de) * 2017-09-26 2019-03-28 Zf Friedrichshafen Ag Hybridantriebsmodul für ein Kraftfahrzeug

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007001424A1 (de) * 2007-01-09 2008-07-31 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verfahren zum Starten eines Kolbenmotors
DE102013012155A1 (de) * 2013-07-20 2015-01-22 Daimler Ag Verfahren zum Starten eines Verbrennungsmotors eines Kraftfahrzeugs mit einem Parallelhybridantriebsstrang in einem Fahrzeugstillstand
DE102016202138A1 (de) * 2016-02-12 2017-08-17 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Anlassen einer Verbrennungskraftmaschine sowie Antriebsstrang für ein Kraftfahrzeug
EP3343017A1 (fr) * 2016-12-27 2018-07-04 Volvo Car Corporation Procédé et système pour démarrer un moteur à combustion interne d'un véhicule hybride et véhicule hybride comportant un tel système de démarrage
DE102017217007A1 (de) * 2017-09-26 2019-03-28 Zf Friedrichshafen Ag Hybridantriebsmodul für ein Kraftfahrzeug

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