DE102018212943A1 - Method and control device for operating a hybrid drive system of a hybrid vehicle - Google Patents
Method and control device for operating a hybrid drive system of a hybrid vehicle Download PDFInfo
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- DE102018212943A1 DE102018212943A1 DE102018212943.6A DE102018212943A DE102018212943A1 DE 102018212943 A1 DE102018212943 A1 DE 102018212943A1 DE 102018212943 A DE102018212943 A DE 102018212943A DE 102018212943 A1 DE102018212943 A1 DE 102018212943A1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
- B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—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
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- 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
- B60W20/16—Control strategies specially adapted for achieving a particular effect for reducing engine exhaust emissions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
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- 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
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
- F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
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- 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
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
- F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
- F02N11/0829—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode related to special engine control, e.g. giving priority to engine warming-up or learning
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- 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
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
- F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
- F02N11/0833—Vehicle conditions
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- 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
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/005—Aiding engine start by starting from a predetermined position, e.g. pre-positioning or reverse rotation
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- 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
- F02N99/00—Subject matter not provided for in other groups of this subclass
- F02N99/002—Starting combustion engines by ignition means
- F02N99/006—Providing a combustible mixture inside the cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
- B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0685—Engine crank angle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
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- B60W2510/244—Charge state
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
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- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
- F02D2041/0095—Synchronisation of the cylinders during engine shutdown
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/18—Control of the engine output torque
- F02D2250/24—Control of the engine output torque by using an external load, e.g. a generator
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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
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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
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Abstract
Die Erfindung betrifft ein Verfahren und eine Steuervorrichtung (20) zum Betreiben eines Hybridantriebsystems eines Hybridfahrzeugs durch Erkennen oder Prognostizieren eines Starts des zuvor oder noch stillstehenden Hybridfahrzeugs (34) anhand mindestens eines von einer Fahrzeugkomponente des Hybridfahrzeugs (34) bereitgestellten Signals und Drehen einer Kurbelwelle (12) eines Verbrennungsmotors (10) des Hybridantriebsystems derart in eine Ausgangsstellung der Kurbelwelle (12) zu dem Verbrennungsmotor (10) durch Durchdrehen oder Mitschleppen der Kurbelwelle (12) während eines Betriebs einer elektrischen Antriebsmaschine (14) des Hybridantriebsystems, dass ab einem Vorliegen der Kurbelwelle (12) in ihrer Ausgangsstellung die Einspritzventile und Zündspulen des Verbrennungsmotors (10) von einer Elektronikeinrichtung des Hybridantriebsystems so ansteuerbar sind, dass der Verbrennungsmotor (10) befeuert wird, wobei mit dem Drehen der Kurbelwelle (12) in ihre Ausgangsstellung ab Erkennen oder Prognostizieren eines Starts des zuvor oder noch stillstehenden Hybridfahrzeugs (34) begonnen wird.The invention relates to a method and a control device (20) for operating a hybrid drive system of a hybrid vehicle by recognizing or predicting a start of the previously or still stationary hybrid vehicle (34) on the basis of at least one signal provided by a vehicle component of the hybrid vehicle (34) and rotating a crankshaft ( 12) of an internal combustion engine (10) of the hybrid drive system in an initial position of the crankshaft (12) to the internal combustion engine (10) by rotating or dragging the crankshaft (12) during operation of an electric drive machine (14) of the hybrid drive system that from the presence of the Crankshaft (12) in its starting position, the injection valves and ignition coils of the internal combustion engine (10) can be controlled by an electronic device of the hybrid drive system in such a way that the internal combustion engine (10) is fired, with the crankshaft (12) rotating into its starting position from detection or predicting a start of the previously or still stationary hybrid vehicle (34) is started.
Description
Die Erfindung betrifft ein Verfahren zum Betreiben eines Hybridantriebsystems eines Hybridfahrzeugs. Des Weiteren betrifft die Erfindung eine Steuervorrichtung für ein Hybridantriebsystem eines Hybridfahrzeugs und ein Hybridantriebsystem für ein Hybridfahrzeug.The invention relates to a method for operating a hybrid drive system of a hybrid vehicle. Furthermore, the invention relates to a control device for a hybrid drive system of a hybrid vehicle and a hybrid drive system for a hybrid vehicle.
Stand der TechnikState of the art
In der
Der Erststart läuft nach dem eben beschriebenen Szenario ab. Bei einem Wiederholstart wird die Kurbel- und Nockenwelle ebenfalls durch aktivieren der elektrischen Maschine in eine Drehbewegung versetzt, jedoch mit der Einspritzung und Zündung des Kraftstoffs kann sofort begonnen werden, so dass sogar ein Direktstart möglich ist. Damit ist ein Wiederholstart immer deutlich schneller als ein Erststart. Bei einem Hybridfahrzeug, d.h. einem Fahrzeug mit einem Verbrennungsmotor und einer elektrischen Antriebsmaschine, kann es vorkommen, dass der Verbrenner-Erststart auch während einer zuerst als rein elektrisches Fahren ausgeführten Fahrt auszuführen ist.The first start takes place according to the scenario just described. When the engine is started again, the crankshaft and camshaft are also rotated by activating the electric machine, but the fuel injection and ignition can be started immediately, so that even a direct start is possible. This means that a repeat start is always significantly faster than a first start. In a hybrid vehicle, i.e. a vehicle with an internal combustion engine and an electric drive machine, it may happen that the first start of the internal combustion engine must also be carried out during a journey which was initially carried out as purely electric driving.
Offenbarung der ErfindungDisclosure of the invention
Die Erfindung schafft ein Verfahren zum Betreiben eines Hybridantriebsystems eines Hybridfahrzeugs mit den Merkmalen des Anspruchs 1, eine Steuervorrichtung für ein Hybridantriebsystem eines Hybridfahrzeugs mit den Merkmalen des Anspruchs 6 und ein Hybridantriebsystem für ein Hybridfahrzeug mit den Merkmalen des Anspruchs 9.The invention provides a method for operating a hybrid drive system of a hybrid vehicle with the features of claim 1, a control device for a hybrid drive system of a hybrid vehicle with the features of claim 6 and a hybrid drive system for a hybrid vehicle with the features of claim 9.
Vorteile der ErfindungAdvantages of the invention
Die vorliegende Erfindung schafft Möglichkeiten zum frühzeitigen Synchronisieren der Kurbelwelle und Nockenwelle, sodass bei einem angeforderten Betrieb des Verbrennungsmotors dieser deutlich schneller, komfortabler und effizienter als beim Stand der Technik gestartet werden kann. Bei einer Nutzung der vorliegenden Erfindung kann bei einen angeforderten Betrieb des Verbrennungsmotors unmittelbar/sofort, d.h. ohne ein Synchronisieren, mit der Einspritzung und Zündung von Kraftstoff reagiert werden, sodass anstelle eines „Erststarts“ ein deutlich kürzerer „Wiederholstart“ (bzw. „Folgestart“) möglich ist. Der Verbrennungsmotor kann somit mittels der vorliegenden Erfindung frühzeitiger und vorteilhafter eingesetzt werden. Außerdem ist bei einer Nutzung der vorliegenden Erfindung nicht mehr zu befürchten, dass der deutlich längere Erststart in einer evtl. ungünstigen Verkehrssituation anfällt.The present invention creates possibilities for early synchronization of the crankshaft and camshaft, so that when the internal combustion engine is requested to be operated, it can be started much faster, more conveniently and more efficiently than in the prior art. When using the present invention, when the internal combustion engine is requested to operate, immediately / immediately, i.e. without synchronization, the injection and ignition of fuel are reacted to, so that instead of a "first start", a significantly shorter "repeat start" (or "subsequent start") is possible. The internal combustion engine can thus be used earlier and more advantageously by means of the present invention. In addition, when using the present invention, there is no longer any fear that the significantly longer initial start will occur in a possibly unfavorable traffic situation.
Während beim Stand der Technik aufgrund der noch auszuführenden Drehung der Kurbelwelle bis zur Synchronisation der „Erststart“ immer deutlich länger als ein „Wiederholstart“/„Folgestart“ ist, kann bei einer Nutzung der vorliegenden Erfindung der Verbrennungsmotor sofort mit einem „Wiederholstart“/„Folgestart“ in Betrieb genommen werden. Ein weiterer Vorteil der vorliegenden Erfindung ist, dass durch das Durchdrehen oder Mitschleppen der Kurbelwelle während des Betriebs der elektrischen Antriebsmaschine bereits ein vorteilhaft hoher Druck in einem mit dem Verbrennungsmotor zusammenwirkenden Kraftstoffzuführsystem, bzw. Kraftstoffeinspritzsystem, wie z.B. einem Otto-Direkteinspritzsystem, aufgebaut werden kann, was den Start noch effizienter macht.While in the prior art, due to the rotation of the crankshaft to be carried out until the synchronization, the "first start" is always significantly longer than a "repeat start" / "subsequent start", when using the present invention, the internal combustion engine can be started immediately with a "repeat start" / " Follow-up start ”can be put into operation. Another advantage of the present invention is that by spinning or dragging the crankshaft during operation of the electric drive machine, an advantageously high pressure in a fuel supply system or fuel injection system that interacts with the internal combustion engine, such as e.g. an Otto direct injection system, which makes starting even more efficient.
In einer vorteilhaften Ausführungsform des Verfahrens werden als das mindestens eine Signal mindestens ein Signal eines Schlüsselsensors des Hybridfahrzeugs und/oder mindestens ein Signal eines Türöffnungssensors des Hybridfahrzeugs zum Prognostizieren eines Starts des stillstehenden Hybridfahrzeugs detektiert. Somit kann bereits beim Aufschließen oder Öffnen einer Tür des Hybridfahrzeugs, insbesondere beim Aufschließen oder Öffnen einer Fahrertür des Hybridfahrzeugs, mit dem Synchronisieren begonnen werden. Ebenso kann ein Zündungssignal einer Zündung des Hybridfahrzeugs zum Erkennen eines Starts des stillstehenden Hybridfahrzeugs detektiert werden. Auch in diesem Fall ist das Synchronisieren so frühzeitig ausführbar, dass ein nachfolgender Start des Verbrennungsmotors ein „Wiederholstart“/„Folgestart“ ist, welcher deutlich schneller als ein „Erststart“ ausgeführt werden kann. Dabei wird die Kurbelwelle nur solange gedreht, bis die Synchronisation vorliegt. Ist dies erreicht, wird die elektrische Maschine wieder deaktiviert und die Drehbewegung kommt wieder zur Ruhe. Es wird dabei kein Kraftstoff eingespritzt und gezündet. Für die Motorsteuerung sind alle folgenden Starts des Fahrzyklus ein Wiederholstart.In an advantageous embodiment of the method, at least one signal of a key sensor of the hybrid vehicle and / or at least one signal of a door opening sensor of the hybrid vehicle for predicting a start of the stationary hybrid vehicle are detected as the at least one signal. Synchronization can thus already be started when unlocking or opening a door of the hybrid vehicle, in particular when unlocking or opening a driver's door of the hybrid vehicle. An ignition signal of an ignition of the hybrid vehicle can also be used to detect a start of the stationary hybrid vehicle. In this case too, the synchronization can be carried out so early that a subsequent start of the internal combustion engine is a "repeat start" / "subsequent start", which can be carried out significantly faster than a "first start". The crankshaft is only rotated until synchronization is achieved. If this is achieved, the electrical machine is deactivated again and the rotary movement comes to a standstill again. No fuel is injected and ignited. For the engine control, all subsequent starts of the driving cycle are a repeat start.
Als vorteilhafte Weiterbildung können auch unmittelbar nach dem Drehen der Kurbelwelle in ihre Ausgangsstellung noch mindestens zwei weitere Umdrehungen der Kurbelwelle durch das Durchdrehen oder Mitschleppen der Kurbelwelle angeregt werden. Mittels der mindestens zwei weiteren Umdrehungen der Kurbelwelle kann ein Druckaufbau in einem Kraftstoffzuführsystem, bzw. einem Kraftstoffeinspritzsystem, bewirkt werden, welcher sich vorteilhaft auf die Effizienz des folgenden Verbrennerstarts auswirkt.As an advantageous further development, at least two further revolutions of the crankshaft can also be excited by rotating or cranking the crankshaft immediately after turning the crankshaft into its starting position. By means of the at least two further revolutions of the crankshaft, a pressure build-up in a fuel supply system or a fuel injection system can be brought about, which has an advantageous effect on the efficiency of the subsequent combustion start.
In einer weiteren vorteilhaften Ausführungsform des Verfahrens wird die Kurbelwelle unmittelbar nach dem Drehen der Kurbelwelle in ihre Ausgangsstellung oder unmittelbar nach den mindestens zwei weiteren Umdrehungen der Kurbelwelle angehalten, und anschließend, während die Kurbelwelle in ihrer Ausgangsstellung gehalten wird, abgewartet, bis ein Betrieb des Verbrennungsmotors zum Antreiben des Hybridfahrzeugs angefordert wird. Sofern gewünscht, kann das Hybridfahrzeug während des Abwartens mittels der elektrischen Antriebsmaschine angetrieben werden.In a further advantageous embodiment of the method, the crankshaft is stopped immediately after the crankshaft has rotated into its starting position or immediately after the at least two further revolutions of the crankshaft, and then, while the crankshaft is kept in its starting position, the operation of the internal combustion engine is waited for is requested to drive the hybrid vehicle. If desired, the hybrid vehicle can be driven by the electric drive machine while waiting.
In einer bevorzugten Ausführungsform des Verfahrens wird das Hybridantriebsystem mit einem direktstartfähigen Verbrennungsmotor als dem Verbrennungsmotor betrieben, wobei der direktstartfähige Verbrennungsmotor erst dann, wenn eine Energiespeichereinheit der elektrischen Antriebsmaschine vollständig leer ist, zum Antreiben des Hybridfahrzeugs aktiviert wird. Eine auf der Energiespeichereinheit der elektrischen Antriebsmaschine abgespeicherte Energie kann somit ausschließlich für einen relativ langen Betrieb der elektrischen Antriebsmaschine zum Antreiben des Hybridfahrzeugs genutzt werden.In a preferred embodiment of the method, the hybrid drive system is operated with a directly startable internal combustion engine as the internal combustion engine, the direct startable internal combustion engine only being activated to drive the hybrid vehicle when an energy storage unit of the electric drive machine is completely empty. An energy stored on the energy storage unit of the electric drive machine can thus be used exclusively for relatively long operation of the electric drive machine for driving the hybrid vehicle.
Die vorausgehend beschriebenen Vorteile können auch mittels einer entsprechenden Steuervorrichtung für ein Hybridantriebsystem eines Hybridfahrzeugs bewirkt werden. Die Steuervorrichtung ist gemäß den oben erläuterten Ausführungsformen des Verfahrens weiterbildbar.The advantages described above can also be brought about by means of a corresponding control device for a hybrid drive system of a hybrid vehicle. The control device can be further developed in accordance with the embodiments of the method explained above.
Des Weiteren können die genannten Vorteile auch mittels eines entsprechenden Hybridantriebsystems für ein Hybridfahrzeug realisiert werden. Auch das Hybridantriebsystem ist gemäß den oben erläuterten Ausführungsformen des Verfahrens weiterbildbar.Furthermore, the advantages mentioned can also be realized by means of a corresponding hybrid drive system for a hybrid vehicle. The hybrid drive system can also be further developed in accordance with the embodiments of the method explained above.
Figurenlistelist of figures
Weitere Merkmale und Vorteile der vorliegenden Erfindung werden nachfolgend anhand der Figuren erläutert. Es zeigen:
-
1 eine schematische Darstellung eines ersten Hybridantriebsystems zum Erläutern einer Ausführungsform des Verfahrens zum Betreiben eines derartigen Hybridantriebsystems; und -
2 eine schematische Darstellung eines zweiten Hybridantriebsystems zum Erläutern einer Funktionsweise einer Ausführungsform der Steuervorrichtung.
-
1 a schematic representation of a first hybrid drive system for explaining an embodiment of the method for operating such a hybrid drive system; and -
2 is a schematic representation of a second hybrid drive system for explaining an operation of an embodiment of the control device.
Ausführungsformen der ErfindungEmbodiments of the invention
Das in
Es wird jedoch ausdrücklich darauf hingewiesen, dass das nachfolgend beschriebene Verfahren auch zum Betreiben eines Hybridantriebsystems mit einer elektrischen Antriebsmaschine
Vor Beginn eines Fahrzyklus des mit dem Hybridantriebsystem der
Vor einem Einspritzen und Zünden eines Kraftstoffs in den Verbrennungsmotor
Bei dem hier beschriebenen Verfahren wird mit dem Drehen der Kurbelwelle
Das Erkennen oder Prognostizieren eines Starts des zuvor oder noch stillstehenden Hybridfahrzeugs geschieht anhand mindestens eines von einer Fahrzeugkomponente des Hybridfahrzeugs bereitgestellten Signals. Ein baldiges Starten des stillstehenden Hybridfahrzeugs kann zumindest angenommen werden, wenn zum Beispiel eine Tür des Hybridfahrzeugs, vorzugsweise eine Fahrertür des Hybridfahrzeugs, aufgeschlossen oder geöffnet wird. Insbesondere anhand mindestens eines Signals eines Schlüsselsensors des Hybridfahrzeugs und/oder eines Türöffnungssensors des Hybridfahrzeugs kann verlässlich davon ausgegangen werden, dass das stillstehende Hybridfahrzeug bald gestartet wird. Das Durchdrehen der Kurbelwelle
Bei einem Ausführen des hier beschriebenen Verfahrens kann jedoch auch während eines Fahrbeginns des Hybridfahrzeugs, beispielsweise unmittelbar nach dem Starten das Fahrzeugs durch den Fahrer, die Kurbelwelle
Bei einem Ausführen des hier beschriebenen Verfahrens entfällt somit der zeitliche Nachteil eines Erststarts bei einem Wechsel von einem Antreiben des Hybridfahrzeugs ausschließlich mittels der elektrischen Antriebsmaschine
Als bevorzugte Weiterbildung des Verfahrens können unmittelbar nach dem Synchronisieren noch mindestens zwei weitere/zusätzliche Umdrehungen der Kurbelwelle
Das Synchronisieren bereits vor einem angenommenen baldigen Start des stillstehenden Hybridfahrzeugs oder während eines Starts des zuvor stillstehenden Hybridfahrzeugs, evtl. mit zusätzlicher Bewirkung der mindestens zwei weiteren/zusätzlichen Umdrehungen der Kurbelwelle
Die Kurbelwelle
Das oben beschriebene Verfahren kann beispielsweise mittels einer Steuervorrichtung
Das in
Da die Kurbelwelle
Das Hybridantriebsystem der
Die Elektronikeinrichtung ist zusätzlich dazu ausgelegt, anhand mindestens eines von einer Fahrzeugkomponente des Hybridfahrzeug
Beispielsweise kann die Elektronikeinrichtung anhand eines an die Elektronikeinrichtung/ Steuervorrichtung
Wenn das Hybridantriebsystem auch für ein Durchdrehen der Kurbelwelle
Als vorteilhafte Weiterbildung kann die Elektronikeinrichtung/Steuervorrichtung
Nach der mittels der Elektronikeinrichtung/Steuervorrichtung
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE 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 documents listed by the applicant has been generated automatically and is only included for better information for 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
- EP 0939859 B1 [0002]EP 0939859 B1 [0002]
Claims (10)
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DE102018212943.6A DE102018212943A1 (en) | 2018-08-02 | 2018-08-02 | Method and control device for operating a hybrid drive system of a hybrid vehicle |
CN201910707557.1A CN110792544A (en) | 2018-08-02 | 2019-08-01 | Method and control device for operating a hybrid drive system of a hybrid vehicle |
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DE102018212943.6A DE102018212943A1 (en) | 2018-08-02 | 2018-08-02 | Method and control device for operating a hybrid drive system of a hybrid vehicle |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3111395A1 (en) * | 2020-06-16 | 2021-12-17 | Psa Automobiles Sa | FUEL SUPPLY PRESSURE MAINTENANCE ON HYBRID POWERTRAIN UNIT |
WO2024033023A1 (en) * | 2022-08-11 | 2024-02-15 | Magna Pt B.V. & Co. Kg | Method for starting a hybrid vehicle at low temperatures, and software module |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0939859B1 (en) * | 1997-09-19 | 2003-01-29 | Robert Bosch Gmbh | Drive mechanism for a motor vehicle |
DE102006012384A1 (en) * | 2006-03-15 | 2007-09-20 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Hybrid vehicle starting method, involves starting internal combustion engine in mode of operation from idleness without mechanical drive of internal combustion engine, where fuel ignition takes place after fuel injection into cylinder |
DE102016005122A1 (en) * | 2016-04-28 | 2017-11-02 | Audi Ag | Method for operating a hybrid drive device of a motor vehicle and corresponding hybrid drive device |
-
2018
- 2018-08-02 DE DE102018212943.6A patent/DE102018212943A1/en not_active Withdrawn
-
2019
- 2019-08-01 CN CN201910707557.1A patent/CN110792544A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0939859B1 (en) * | 1997-09-19 | 2003-01-29 | Robert Bosch Gmbh | Drive mechanism for a motor vehicle |
DE102006012384A1 (en) * | 2006-03-15 | 2007-09-20 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Hybrid vehicle starting method, involves starting internal combustion engine in mode of operation from idleness without mechanical drive of internal combustion engine, where fuel ignition takes place after fuel injection into cylinder |
DE102016005122A1 (en) * | 2016-04-28 | 2017-11-02 | Audi Ag | Method for operating a hybrid drive device of a motor vehicle and corresponding hybrid drive device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3111395A1 (en) * | 2020-06-16 | 2021-12-17 | Psa Automobiles Sa | FUEL SUPPLY PRESSURE MAINTENANCE ON HYBRID POWERTRAIN UNIT |
WO2024033023A1 (en) * | 2022-08-11 | 2024-02-15 | Magna Pt B.V. & Co. Kg | Method for starting a hybrid vehicle at low temperatures, and software module |
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