DE102019210105A1 - Method for operating a hybrid drive train and electronic control unit - Google Patents

Method for operating a hybrid drive train and electronic control unit Download PDF

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Publication number
DE102019210105A1
DE102019210105A1 DE102019210105.4A DE102019210105A DE102019210105A1 DE 102019210105 A1 DE102019210105 A1 DE 102019210105A1 DE 102019210105 A DE102019210105 A DE 102019210105A DE 102019210105 A1 DE102019210105 A1 DE 102019210105A1
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Germany
Prior art keywords
combustion engine
internal combustion
torque
electrical machine
control unit
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DE102019210105.4A
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German (de)
Inventor
Thomas Lemp
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ZF Friedrichshafen AG
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ZF Friedrichshafen AG
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Priority to DE102019210105.4A priority Critical patent/DE102019210105A1/en
Publication of DE102019210105A1 publication Critical patent/DE102019210105A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—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
    • B60K6/26—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
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/15—Control strategies specially adapted for achieving a particular effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/006—Starting of engines by means of electric motors using a plurality of electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/04—Starting of engines by means of electric motors the motors being associated with current generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
    • 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
    • B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • B60W2510/0685—Engine crank angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
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    • B60W2710/00—Output or target parameters relating to a particular sub-units
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    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/02—Parameters used for control of starting apparatus said parameters being related to the engine
    • F02N2200/022—Engine speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/04—Parameters used for control of starting apparatus said parameters being related to the starter motor
    • F02N2200/041—Starter speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2300/00—Control related aspects of engine starting
    • F02N2300/10—Control related aspects of engine starting characterised by the control output, i.e. means or parameters used as a control output or target
    • F02N2300/102—Control of the starter motor speed; Control of the engine speed during cranking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Automation & Control Theory (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

Verfahren zum Betrieb eines Hybrid-Antriebsstrangs eines Kraftfahrzeugs, wobei der Antriebsstrang Antriebsräder (DW), einen Verbrennungsmotor (VM), eine elektrische Maschine (EM) sowie eine dazwischen angeordnete Trennkupplung (K0) aufweist, wobei in einem unbefeuerten Betrieb des Verbrennungsmotors (VM) folgende Schritte durchgeführt werden: Betreiben der elektrischen Maschine (EM) in einer Drehzahlregelung, Einstellen eines drehmomentübertragenden Zustands der Trennkupplung (K0), Überwachen einer Drehwinkelposition des Verbrennungsmotors (VM), bis die Drehwinkelposition einen Sollwert oder einen Sollbereich erreicht hat, Öffnen der Trennkupplung (K0), wenn die Drehwinkelposition den Sollwert oder den Sollbereich erreicht hat, wobei der drehmomentübertragende Zustand durch einen Schlupfzustand der Trennkupplung (K0) realisiert wird, sowie elektronische Steuereinheit (ECU) zur Durchführung eines solchen Verfahrens.Method for operating a hybrid drive train of a motor vehicle, the drive train having drive wheels (DW), an internal combustion engine (VM), an electric machine (EM) and a separating clutch (K0) arranged in between, wherein in unfired operation of the internal combustion engine (VM) The following steps are carried out: operating the electrical machine (EM) in a speed control, setting a torque-transmitting state of the separating clutch (K0), monitoring an angle of rotation position of the internal combustion engine (VM) until the angle of rotation position has reached a target value or a target range, opening the clutch K0) when the angle of rotation position has reached the target value or the target range, the torque-transmitting state being implemented by a slipping state of the separating clutch (K0), as well as an electronic control unit (ECU) for carrying out such a method.

Description

Die Erfindung betrifft ein Verfahren zum Betrieb eines Hybrid-Antriebsstrangs eines Kraftfahrzeugs. Die Erfindung betrifft ferner eine elektronische Steuereinheit zur Anwendung im Kraftfahrzeug, welche zur Durchführung eines solchen Verfahrens eingerichtet ist.The invention relates to a method for operating a hybrid drive train of a motor vehicle. The invention also relates to an electronic control unit for use in a motor vehicle, which is set up to carry out such a method.

Die Patentanmeldung US 2012/0309587 A1 beschreibt ein Motorstop-Steuerungssystem für ein Hybrid-Elektrofahrzeug mit einem Verbrennungsmotor, einer elektrischen Maschine, einer Kupplung zwischen Verbrennungsmotor und elektrischer Maschine sowie einem Steuergerät. Das Steuergerät kann eine Stop-Position des Verbrennungsmotors durch Steuern einer Drehzahl der elektrischen Maschine steuern, während die erste Kupplung vollständig geschlossen ist.The patent application US 2012/0309587 A1 describes an engine stop control system for a hybrid electric vehicle with an internal combustion engine, an electric machine, a clutch between the internal combustion engine and the electric machine and a control device. The control device can control a stop position of the internal combustion engine by controlling a speed of the electric machine while the first clutch is completely closed.

Die Patentanmeldung DE 198 38 853 A1 beschreibt eine Hybridantriebsvorrichtung für ein Fahrzeug, welche eine Maschine, einen Elektromotor, eine Kupplung zwischen der Maschine und dem Elektromotor, eine Getriebeeinheit zur Übertragung der Leistung der Maschine und des Elektromotors auf Räder, und eine Steuereinrichtung zur Steuerung der Maschine, des Elektromotors und der Übertragung der Leistung der Maschine und des Elektromotors auf die Räder aufweist. Es ist eine Wartezustandssteuereinrichtung vorgesehen, um eine Steuerung zur Drehung der Maschine in eine Anlassstartposition auszuführen, bevor das Anlassen der Maschine ausgeführt wird.The patent application DE 198 38 853 A1 describes a hybrid drive device for a vehicle, which includes an engine, an electric motor, a clutch between the engine and the electric motor, a transmission unit for transmitting the power of the machine and the electric motor to wheels, and a control device for controlling the machine, the electric motor and the transmission the power of the machine and the electric motor on the wheels. Wait state control means is provided for executing control of rotating the engine to a cranking start position before starting the engine is carried out.

Es ist nun Aufgabe der Erfindung ein Verfahren zur Weiterentwicklung der im Stand der Technik bekannten Vorgänge anzugeben.It is now the object of the invention to specify a method for further developing the processes known in the prior art.

Die Aufgabe wird gelöst durch ein Verfahren mit den Merkmalen des Patentanspruchs 1. In Patentanspruch 5 ist zudem eine elektronische Steuereinheit angegeben, welche zur Durchführung des erfindungsgemäßen Verfahrens eingerichtet ist. Vorteilhafte Ausgestaltungen ergeben sich aus den abhängigen Patentansprüchen, der Beschreibung sowie aus den Figuren.The object is achieved by a method having the features of claim 1. In addition, an electronic control unit is specified which is set up to carry out the method according to the invention. Advantageous configurations result from the dependent claims, the description and the figures.

Es wird ein Verfahren zum Betrieb eines Hybrid-Antriebsstrangs eines Kraftfahrzeugs vorgeschlagen. Der Antriebsstrang umfasst Antriebsräder, einen Verbrennungsmotor, eine elektrische Maschine sowie eine zwischen Verbrennungsmotor und elektrischer Maschine angeordnete Trennkupplung. In einem unbefeuerten Betrieb des Verbrennungsmotors werden dabei folgende Schritte durchgeführt:

  • - Betreiben der elektrischen Maschine in einer Drehzahlregelung,
  • - Einstellen eines drehmomentübertragenden Zustands der Trennkupplung, sodass ausgehend von der elektrischen Maschine ein Drehmoment auf den Verbrennungsmotor übertragen wird,
  • - Überwachen einer Drehwinkelposition des Verbrennungsmotors, bis die Drehwinkelpositionen einen Sollwert oder einen Sollbereich erreicht hat, und
  • - Öffnen der Trennkupplung, wenn die Drehwinkelposition den Sollwert oder den Sollbereich erreicht hat.
A method for operating a hybrid drive train of a motor vehicle is proposed. The drive train comprises drive wheels, an internal combustion engine, an electrical machine and a separating clutch arranged between the internal combustion engine and the electrical machine. In unfired operation of the internal combustion engine, the following steps are carried out:
  • - Operation of the electrical machine in a speed control,
  • - Setting a torque-transmitting state of the separating clutch so that, starting from the electrical machine, a torque is transmitted to the internal combustion engine,
  • - Monitoring a rotational angle position of the internal combustion engine until the rotational angle position has reached a target value or a target range, and
  • - Opening the separating clutch when the angle of rotation position has reached the target value or the target range.

Erfindungsgemäß ist nun vorgesehen, dass der drehmomentübertragende Zustand der Trennkupplung durch einen Schlupfzustand realisiert wird, in welchem während der Drehmomentübertragung eine Differenzdrehzahl zwischen Verbrennungsmotor und elektrischer Maschine besteht. Durch eine solche Vorgehensweise kann eine aufwändige Niedrigdrehzahl-Winkelpositionsregelung der elektrischen Maschine entfallen.According to the invention it is now provided that the torque-transmitting state of the separating clutch is implemented by a slip state in which there is a differential speed between the internal combustion engine and the electric machine during the torque transmission. Such a procedure can dispense with complex, low-speed angular position control of the electrical machine.

Der Antriebsstrang kann ferner ein Anfahrelement aufweisen. Das Anfahrelement wird hierbei durch eine Reibkupplung oder durch eine Reibbremse gebildet. Durch das Anfahrelement ist eine Drehmomentübertragung zwischen der elektrischen Maschine und den Antriebsrädern steuerbar.The drive train can also have a starting element. The starting element is formed here by a friction clutch or a friction brake. A torque transmission between the electric machine and the drive wheels can be controlled by the starting element.

Gemäß einer ersten möglichen Ausgestaltung ist das Anfahrelement während der Durchführung des Verfahrens vollständig geschlossen. Durch ein solches Vorgehen kann das Kraftfahrzeug während des Verfahrensablaufs mit einer hohen Dynamik beschleunigt werden.According to a first possible embodiment, the starting element is completely closed while the method is being carried out. With such a procedure, the motor vehicle can be accelerated with high dynamics during the process sequence.

Gemäß einer zweiten möglichen Ausgestaltung wird das Anfahrelement während der Durchführung des Verfahrens in einem Schlupfzustand betrieben, also unter Ausbildung einer Differenzdrehzahl zwischen einer Antriebsseite und einer Abtriebsseite des Anfahrelements bei gleichzeitiger Drehmomentübertragung über das Anfahrelement. Dadurch kann das Verfahren von abtriebsseitigen Einflüssen entkoppelt werden, sodass ein hoher Fahrkomfort gewährleistet wird.According to a second possible embodiment, the starting element is operated in a slip state while the method is being carried out, that is to say with the formation of a differential speed between a drive side and an output side of the starting element with simultaneous torque transmission via the starting element. As a result, the process can be decoupled from influences on the output side, so that a high level of driving comfort is guaranteed.

Vorzugsweise ist ein während des Verfahrensablaufs von der elektrischen Maschine abgegebenes Drehmoment abhängig von einem Soll-Antriebsmoment des Kraftfahrzeugs. Das Soll-Antriebsmoment kann beispielsweise von einer Fahrpedalposition des Kraftfahrzeugs vorgegeben sein. Das beim Verfahrensablauf über die Trennkupplung übertragene Drehmoment wird durch die Drehzahlregelung der elektrischen Maschine kompensiert. Dadurch wird das beim Verfahrensablauf geforderte Soll-Antriebsmoment des Kraftfahrzeugs von der Durchführung des Verfahrens nicht beeinflusst.A torque output by the electric machine during the process sequence is preferably dependent on a setpoint drive torque of the motor vehicle. The target drive torque can, for example, be predetermined by an accelerator pedal position of the motor vehicle. The torque transmitted via the separating clutch during the process sequence is compensated for by the speed control of the electrical machine. This will the setpoint drive torque of the motor vehicle required during the process sequence is not influenced by the implementation of the process.

Zur Lösung der Aufgabe wird außerdem eine elektronische Steuereinheit vorgeschlagen, welche dazu eingerichtet ist, das eingangs beschriebene Verfahren durchzuführen. Die elektronische Steuereinheit kann zur Durchführung weiterer Funktionen der Antriebsstrangsteuerung vorgesehen sein.To achieve the object, an electronic control unit is also proposed which is set up to carry out the method described at the beginning. The electronic control unit can be provided to carry out further functions of the drive train control.

Die Erfindung ist beispielhaft durch die nachfolgenden Figuren detailliert beschrieben. Es zeigen:

  • 1 und 2 schematische Darstellungen je eines Kraftfahrzeug-Antriebsstrangs; sowie
  • 3 und 4 schematische Darstellungen eines Abschnitts eines Kraftfahrzeugs-Antriebsstrangs.
The invention is described in detail by way of example in the following figures. Show it:
  • 1 and 2 schematic representations of a motor vehicle drive train; such as
  • 3 and 4th schematic representations of a section of a motor vehicle drive train.

1 zeigt eine schematische Darstellung eines Kraftfahrzeug-Antriebsstranges gemäß einem ersten Ausführungsbeispiel. Der Antriebsstrang weist einen Verbrennungsmotor VM auf, welcher funktional mit einem Hybridmodul HY verbunden ist. Das Hybridmodul HY beherbergt eine in 1 nicht dargestellte elektrische Maschine. Das Hybridmodul HY ist funktional mit einem Getriebe G verbunden, welches dazu eingerichtet ist verschiedene Übersetzungen bereitzustellen. Im Getriebe G kann ein in 1 nicht dargestelltes Reibelement vorhanden sein. Abtriebsseitig ist das Getriebe G mit einem Differentialgetriebe AG verbunden, welches dazu eingerichtet ist die an einer Abtriebswelle W2 des Antriebsstrangs anliegende Leistung auf Antriebsräder DW zu verteilen. 1 shows a schematic representation of a motor vehicle drive train according to a first embodiment. The drive train has an internal combustion engine VM which is functional with a hybrid module HY connected is. The hybrid module HY houses an in 1 electrical machine not shown. The hybrid module HY is functional with a gearbox G connected, which is set up to provide various translations. In the transmission G can an in 1 friction element not shown may be present. The gear unit is on the output side G with a differential gear AG connected, which is set up on an output shaft W2 of the drive train applied power to drive wheels DW to distribute.

2 zeigt eine schematische Darstellung eines Kraftfahrzeug-Antriebsstranges gemäß einem zweiten Ausführungsbeispiel. Das Getriebe G umfasst nun eine - in 2 nicht dargestellte - elektrische Maschine, und ist funktional mit dem Verbrennungsmotor VM verbunden. Das im Ausführungsbeispiel gemäß 1 enthaltene Hybridmodul HY entfällt. 2 shows a schematic representation of a motor vehicle drive train according to a second embodiment. The gear G now includes one - in 2 not shown - electrical machine, and is functional with the internal combustion engine VM connected. In the embodiment according to 1 included hybrid module HY not applicable.

3 zeigt schematisch einen Abschnitt eines Kraftfahrzeug-Antriebstrangs gemäß dem in 1 dargestellten Ausführungsbeispiels. In der Wirkverbindung zwischen Verbrennungsmotor VM und elektrischer Maschine EM ist eine Trennkupplung K0 angeordnet. Ein Rotor der elektrischen Maschine EM ist mit einer Welle W1 verbunden. Ist die Trennkupplung K0 geöffnet, so verursacht eine Drehung des Rotors kein Drehen der Verbrennungsmotorwelle, sodass der Verbrennungsmotor VM im geöffneten Zustand der Trennkupplung K0 vom Antriebsstrang abgekoppelt ist. Durch Betätigung eines in - 3 nicht dargestellten - Aktuators kann die Trennkupplung K0 geschlossen werden. Dem Verbrennungsmotor VM ist ein Anlasser RS zugeordnet. Der Anlasser RS wird durch einen Elektromotor gebildet, welcher dazu eingerichtet ist den Verbrennungsmotor VM auf eine Anlassdrehzahl zu beschleunigen. 3 shows schematically a section of a motor vehicle drive train according to the FIG 1 illustrated embodiment. In the operative connection between the combustion engine VM and electric machine EM is a disconnect clutch K0 arranged. A rotor of the electric machine EM is with a wave W1 connected. Is the disconnect clutch K0 opened, rotation of the rotor does not cause the engine shaft to rotate, so the engine VM when the disconnect clutch is open K0 is decoupled from the drive train. By pressing an in - 3 not shown - the actuator can disconnect the clutch K0 getting closed. The combustion engine VM is a starter RS assigned. The ignition RS is formed by an electric motor, which is set up for the internal combustion engine VM to accelerate to a starting speed.

Zwischen dem Rotor und dem Getriebe G ist funktional ein Anfahrelement C2 angeordnet. Das Anfahrelement C2 wird hier durch eine Kupplung gebildet. Das Anfahrelement C2 kann auch Bestandteil des Getriebes G sein. Beispielsweise kann das Anfahrelement C2 an der Bildung der Gangstufen des Getriebes G beteiligt sein. Alternativ dazu kann das Anfahrelement C2 - wie in 3 dargestellt - dem Getriebe G vorangeschaltet sein. Das Anfahrelement C2 kann beispielsweise eine Überbrückungskupplung eines hydrodynamischen Drehmomentwandlers sein.Between the rotor and the gearbox G is functionally a starting element C2 arranged. The starting element C2 is formed here by a coupling. The starting element C2 can also be part of the transmission G be. For example, the starting element C2 in the formation of the gear steps of the transmission G be involved. Alternatively, the starting element C2 - as in 3 shown - the gearbox G be preceded. The starting element C2 can be, for example, a lock-up clutch of a hydrodynamic torque converter.

Das Anfahrelement C2 ist durch einen Aktuator C2_A entgegen einer Federkraft betätigbar. Der Aktuator C2_A kann beispielsweise als hydraulischer oder elektromechanischer Aktuator ausgebildet sein.The starting element C2 is through an actuator C2_A can be operated against a spring force. The actuator C2_A can for example be designed as a hydraulic or electromechanical actuator.

Zur Steuerung der elektrischen Maschine EM und des Anfahrelements C2 ist eine elektronische Steuereinheit ECU vorgesehen. Diese Steuereinheit ECU steht mit einem Umrichter INV in Kommunikationsverbindung, welcher die Stromzufuhr zum Stator der elektrischen Maschine EM steuert. Die Steuereinheit ECU steht ferner mit dem Aktuator C2_A in Kommunikationsverbindung. Dem Verbrennungsmotor VM ist eine eigene Steuereinheit ECU_VM zugeordnet, welche dazu eingerichtet ist den Verbrennungsmotor VM zu steuern. Die Steuereinheit ECU_VM steht mit der Steuereinheit ECU in Kommunikationsverbindung, sodass Signale zwischen der Steuereinheit ECU und der Steuereinheit ECU_VM ausgetauscht werden können. Die Steuereinheit ECU erhält zudem Drehzahlsignale n1, n2. Das Drehzahlsignal n1 repräsentiert eine Drehzahl der Welle W1. Das Drehzahlsignal n2 repräsentiert eine Drehzahl der abtriebsseitigen Hälfte des Anfahrelements C2.For controlling the electrical machine EM and the starting element C2 is an electronic control unit ECU intended. This control unit ECU stands with a converter INV in communication link, which supplies power to the stator of the electrical machine EM controls. The control unit ECU also stands with the actuator C2_A in communication link. The combustion engine VM is its own control unit ECU_VM assigned, which is set up for the internal combustion engine VM to control. The control unit ECU_VM stands with the control unit ECU in communication link so that signals between the control unit ECU and the control unit ECU_VM can be exchanged. The control unit ECU also receives speed signals n1 , n2 . The speed signal n1 represents a rotational speed of the shaft W1 . The speed signal n2 represents a speed of the output-side half of the starting element C2 .

4 zeigt schematisch einen Abschnitt des Getriebes G gemäß dem in 2 dargestellten Antriebsstrangs. Das Getriebe G weist zumindest einen Planetenradsatz P auf. Das Anfahrelement C2 ist nun als Lamellenbremse ausgebildet, und wirkt zwischen einem Hohlrad des Planetenradsatzes P und einem drehfesten Gehäuse GG des Getriebes G. Der Rotor der elektrischen Maschine EM wirkt über die Welle W1 auf ein Sonnenrad des Planetenradsatzes P. Ein Planetenradträger des Planetenradsatzes P ist mit einer Welle W3 des Getriebes G verbunden, welche auf einen nur schematisch dargestellten Teilabschnitt TG des Getriebes G wirkt. Die Welle W1 ist über die Trennkupplung K0 an den in 4 nicht dargestellten Verbrennungsmotor VM gekoppelt. 4th shows schematically a section of the transmission G according to the in 2 shown powertrain. The gear G has at least one planetary gear set P on. The starting element C2 is now designed as a multi-disc brake and acts between a ring gear of the planetary gear set P and a non-rotatable housing GG of the transmission G . The rotor of the electric machine EM acts via the wave W1 on a sun gear of the planetary gear set P . A planet carrier of the planetary gear set P is with a wave W3 of the transmission G connected, which is only shown schematically on a subsection TG of the transmission G works. The wave W1 is about the disconnect clutch K0 to the in 4th internal combustion engine not shown VM coupled.

Das Anfahrelement C2 gemäß dem Ausführungsbeispiel in 4 wird in gleicher Weise wie in 3 durch einen - in 4 nicht dargestellten - Aktuator betätigt. Die Drehzahlsignale n1, n2, welche repräsentativ für die Differenzdrehzahl des Anfahrelement C2 sind, werden der Steuereinheit ECU zugeführt. Die Steuereinheit ECU steht mit dem Umrichter INV in Kommunikationsverbindung, welcher die Stromzufuhr zum Stator der elektrischen Maschine EM steuert. Die Steuereinheit ECU_VM steht mit der Steuereinheit ECU in Kommunikationsverbindung, sodass Signale zwischen der Steuereinheit ECU und der Steuereinheit ECU_VM ausgetauscht werden können.The starting element C2 according to the embodiment in 4th is used in the same way as in 3 through one - in 4th not shown - actuator operated. The speed signals n1 , n2 , which is representative of the differential speed of the starting element C2 are the control unit ECU fed. The control unit ECU stands with the converter INV in communication link, which supplies power to the stator of the electrical machine EM controls. The control unit ECU_VM stands with the control unit ECU in communication link so that signals between the control unit ECU and the control unit ECU_VM can be exchanged.

Soll bei einem Antriebsstrang wie in den 1 bis 4 beschrieben der Verbrennungsmotor VM auf eine zum Anlassen günstige Drehwinkelposition gebracht werden, so führt die elektronische Steuereinheit ECU folgendes Verfahren durch:

  • - Betreiben der elektrischen Maschine EM in einer Drehzahlregelung,
  • - Einstellen eines drehmomentübertragenden Zustands der Trennkupplung K0, wobei der drehmomentübertragenden Zustand durch einen Schlupfzustand der Trennkupplung realisiert wird.
  • - Überwachen einer Drehwinkelposition des Verbrennungsmotors VM, bis die Drehwinkelpositionen einen Sollwert oder einen Sollbereich erreicht hat,
  • - Öffnen der Trennkupplung K0, wenn die Drehwinkelposition den Sollwert oder den Sollbereich erreicht hat.
Should with a drive train like in the 1 to 4th described the internal combustion engine VM are brought to an angle of rotation position favorable for starting, the electronic control unit performs ECU the following procedure:
  • - Operation of the electrical machine EM in a speed control,
  • - Setting a torque-transmitting state of the separating clutch K0 , the torque-transmitting state being realized by a slipping state of the separating clutch.
  • - Monitoring a rotational angle position of the internal combustion engine VM until the angle of rotation position has reached a target value or a target range,
  • - Open the disconnect clutch K0 when the angle of rotation position has reached the target value or the target range.

Abhängig von einer Dynamikanforderung des Kraftfahrzeugs, also beispielsweise abhängig von einem Komfortmodus oder einem Sportmodus des Kraftfahrzeugs, kann das Anfahrelement C2 während der Durchführung des Verfahrens geschlossen oder im Schlupfzustand betrieben werden.Depending on a dynamic requirement of the motor vehicle, for example depending on a comfort mode or a sport mode of the motor vehicle, the starting element can C2 be closed or operated in the slip state while the method is being carried out.

Das Drehmoment, welches während des Verfahrensablaufs über die Trennkupplung K0 übertragen wird, wird durch die Drehzahlregelung der elektrischen Maschine EM kompensiert, sodass eine Soll-Drehzahl der elektrischen Maschine EM aufrechterhalten wird.The torque generated by the disconnect clutch during the process K0 is transmitted is through the speed control of the electrical machine EM compensated so that a target speed of the electrical machine EM is maintained.

BezugszeichenlisteList of reference symbols

VMVM
VerbrennungsmotorInternal combustion engine
ECU_VMECU_VM
Elektronische SteuereinheitElectronic control unit
RSRS
AnlasserStarter
K0K0
TrennkupplungDisconnect clutch
HYHY
HybridmodulHybrid module
GG
Getriebetransmission
TGTG
GetriebeabschnittGear section
GGGG
GetriebegehäuseGear housing
W2W2
AbtriebswelleOutput shaft
AGAG
DifferentialgetriebeDifferential gear
DWDW
Antriebsraddrive wheel
EMEM
Elektrische MaschineElectric machine
INVINV
UmrichterConverter
ECUECU
Elektronische SteuereinheitElectronic control unit
C2C2
ReibelementFriction element
C2_AC2_A
AktuatorActuator
CN_MCN_M
Soll-ÜbertragungsmomentTarget transmission torque
W1W1
Wellewave
W3W3
Wellewave
PP
PlanetenradsatzPlanetary gear set
n1, n2n1, n2
DrehzahlsignalSpeed signal

ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDED IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturPatent literature cited

  • US 2012/0309587 A1 [0002]US 2012/0309587 A1 [0002]
  • DE 19838853 A1 [0003]DE 19838853 A1 [0003]

Claims (5)

Verfahren zum Betrieb eines Hybrid-Antriebsstrangs eines Kraftfahrzeugs, wobei der Antriebsstrang Antriebsräder (DW), einen Verbrennungsmotor (VM), eine elektrische Maschine (EM) sowie eine zwischen Verbrennungsmotor (VM) und elektrischer Maschine (EM) angeordnete Trennkupplung (K0) aufweist, wobei in einem unbefeuerten Betrieb des Verbrennungsmotors (VM) folgende Schritte durchgeführt werden: - Betreiben der elektrischen Maschine (EM) in einer Drehzahlregelung, - Einstellen eines drehmomentübertragenden Zustands der Trennkupplung (K0), - Überwachen einer Drehwinkelposition des Verbrennungsmotors (VM), bis die Drehwinkelposition einen Sollwert oder einen Sollbereich erreicht hat, - Öffnen der Trennkupplung (K0), wenn die Drehwinkelposition den Sollwert oder den Sollbereich erreicht hat, dadurch gekennzeichnet, dass der drehmomentübertragende Zustand durch einen Schlupfzustand der Trennkupplung (K0) realisiert wird, in welchem eine Differenzdrehzahl zwischen Verbrennungsmotor (VM) und elektrischer Maschine (EM) besteht.Method for operating a hybrid drive train of a motor vehicle, the drive train having drive wheels (DW), an internal combustion engine (VM), an electrical machine (EM) and a separating clutch (K0) arranged between the internal combustion engine (VM) and the electrical machine (EM), the following steps are carried out in unfired operation of the internal combustion engine (VM): - operating the electrical machine (EM) in a speed control, - setting a torque-transmitting state of the separating clutch (K0), - monitoring a rotational angle position of the internal combustion engine (VM) until the Angle of rotation position has reached a target value or a target range, - opening the separating clutch (K0) when the angle of rotation position has reached the target value or the target range, characterized in that the torque-transmitting state is implemented by a slip state of the separating clutch (K0), in which a differential speed between internal combustion engine (VM) and electrical machine (EM). Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass zwischen elektrischer Maschine (EM) und Antriebsrädern (DW) ein Anfahrelement (C2) angeordnet ist, welches durch eine Reibkupplung oder durch eine Reibbremse gebildet ist, wobei das Anfahrelement (C2) während der Durchführung des Verfahrens vollständig geschlossen ist.Procedure according to Claim 1 , characterized in that a starting element (C2) is arranged between the electrical machine (EM) and drive wheels (DW), which is formed by a friction clutch or a friction brake, the starting element (C2) being completely closed while the method is being carried out. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass zwischen elektrischer Maschine (EM) und Antriebsrädern (DW) ein Anfahrelement (C2) angeordnet ist, welches durch eine Reibkupplung oder durch eine Reibbremse gebildet ist, wobei das Anfahrelement (C2) während der Durchführung des Verfahrens in einem Schlupfzustand betrieben wird.Procedure according to Claim 1 , characterized in that a starting element (C2) is arranged between the electric machine (EM) and drive wheels (DW), which is formed by a friction clutch or a friction brake, the starting element (C2) being operated in a slip state while the method is being carried out becomes. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass ein während des Verfahrensablaufs von der elektrischen Maschine (EM) abgegebenes Drehmoment abhängig von einem Soll-Antriebsmoment des Kraftfahrzeugs ist, wobei das beim Verfahrensablauf durch die Trennkupplung (K0) übertragene Drehmoment durch die Drehzahlregelung der elektrischen Maschine (EM) kompensiert wird.Method according to one of the Claims 1 to 3 , characterized in that a torque output by the electric machine (EM) during the process is dependent on a target drive torque of the motor vehicle, the torque transmitted by the separating clutch (K0) during the process being compensated by the speed control of the electrical machine (EM) becomes. Elektronische Steuereinheit (ECU) zur Anwendung im Kraftfahrzeug, dadurch gekennzeichnet, dass die elektronische Steuereinheit (ECU) zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 4 eingerichtet ist.Electronic control unit (ECU) for use in the motor vehicle, characterized in that the electronic control unit (ECU) for performing the method according to one of the Claims 1 to 4th is set up.
DE102019210105.4A 2019-07-09 2019-07-09 Method for operating a hybrid drive train and electronic control unit Pending DE102019210105A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19838853A1 (en) * 1997-08-29 1999-03-04 Aisin Aw Co Hybrid drive arrangement for vehicle
DE102006049888A1 (en) * 2006-10-23 2008-04-24 Robert Bosch Gmbh Method for controlling combustion engine and electrical engine with hybrid propulsion of vehicle, involves arranging of clutch between electrical engine and drive train of vehicle
DE102011075216A1 (en) * 2011-05-04 2012-11-08 Robert Bosch Gmbh Method for starting internal combustion engine of hybrid drive train of e.g. motor vehicle, involves connecting crankshaft of internal combustion engine with electrical machine through clutch
US20120309587A1 (en) * 2011-05-30 2012-12-06 Nissan Motor Co., Ltd. Engine stop control system for hybrid electric vehicle
DE112012006913T5 (en) * 2012-09-18 2015-06-11 Toyota Jidosha Kabushiki Kaisha A method of controlling a vehicle drive device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19838853A1 (en) * 1997-08-29 1999-03-04 Aisin Aw Co Hybrid drive arrangement for vehicle
DE102006049888A1 (en) * 2006-10-23 2008-04-24 Robert Bosch Gmbh Method for controlling combustion engine and electrical engine with hybrid propulsion of vehicle, involves arranging of clutch between electrical engine and drive train of vehicle
DE102011075216A1 (en) * 2011-05-04 2012-11-08 Robert Bosch Gmbh Method for starting internal combustion engine of hybrid drive train of e.g. motor vehicle, involves connecting crankshaft of internal combustion engine with electrical machine through clutch
US20120309587A1 (en) * 2011-05-30 2012-12-06 Nissan Motor Co., Ltd. Engine stop control system for hybrid electric vehicle
DE112012006913T5 (en) * 2012-09-18 2015-06-11 Toyota Jidosha Kabushiki Kaisha A method of controlling a vehicle drive device

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