EP2219922A1 - Method for controlling and/or regulating at least one partial load transfer in a hybrid drive arrangement - Google Patents

Method for controlling and/or regulating at least one partial load transfer in a hybrid drive arrangement

Info

Publication number
EP2219922A1
EP2219922A1 EP08860146A EP08860146A EP2219922A1 EP 2219922 A1 EP2219922 A1 EP 2219922A1 EP 08860146 A EP08860146 A EP 08860146A EP 08860146 A EP08860146 A EP 08860146A EP 2219922 A1 EP2219922 A1 EP 2219922A1
Authority
EP
European Patent Office
Prior art keywords
torque
electric machine
internal combustion
combustion engine
load transfer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08860146A
Other languages
German (de)
French (fr)
Inventor
Notker Amann
Christian Mittelberger
Johannes Kaltenbach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of EP2219922A1 publication Critical patent/EP2219922A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/423—Torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/48—Drive Train control parameters related to transmissions
    • B60L2240/486—Operating parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • 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
    • B60W2510/0657—Engine torque
    • 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
    • B60W2510/08—Electric propulsion units
    • B60W2510/083—Torque
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/06—Combustion engines, Gas turbines
    • B60W2710/0666—Engine torque
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/08—Electric propulsion units
    • B60W2710/083—Torque
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/10—Change speed gearings
    • B60W2710/105—Output torque
    • 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
    • B60W2720/00—Output or target parameters relating to overall vehicle dynamics
    • B60W2720/28—Wheel speed
    • 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
    • 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
    • Y02T10/64—Electric machine technologies in electromobility

Definitions

  • the present invention relates to a method for controlling and / or regulating at least a partial load transfer in a hybrid drive arrangement of a vehicle according to the closer defined in the preamble of claim 1.
  • Methods for controlling and / or regulating a partial load transfer in a hybrid drive arrangement of a vehicle are known from vehicle technology. These methods are used in hybrid vehicles, which typically include an internal combustion engine, an electric machine, and at least one clutch and a transmission. With the known method is changed from purely electric driving on hybrid driving. Here is a load transfer or partial load transfer from the electric machine to the electric machine and the engine together. The known method performs a sudden load transfer. Since the dynamics of the electric machine and the internal combustion engine are different, it has been shown that occur in the sudden load transfer shocks in the drive train. Thus, the load transfer is noticed by the driver, thereby reducing the ride comfort.
  • the present invention is based on the object to propose a method of the type described above, with which at least one load transfer or partial load takeover can be carried out without reducing the ride comfort.
  • a method for controlling and / or regulating at least one part-load assumption in a hybrid drive arrangement of a vehicle in which a driver's desired torque of both at least one Electric machine and is applied by an internal combustion engine, and wherein the torque to be applied by the electric motor and the torque to be applied by the internal combustion engine are controlled by means of overlapping functions.
  • the electric machine is controlled, for example via a hybrid control unit such that the torque of the electric machine is reduced to a desired target torque, at the same time the internal combustion engine, for example, via the hybrid control unit is controlled such that a total of the driver's desired torque is achieved.
  • the target torque of the internal combustion engine can be predetermined by a strategic torque distribution of the hybrid control unit.
  • the applied torque of the electric machine and the internal combustion engine are each set by means of a gradient-controlled ramp function or the like.
  • the intersecting ramp functions may preferably have a gradient that differs only in signs. However, it is possible that different gradients are also used for the two ramp functions in terms of magnitude.
  • Another embodiment of the present invention may provide that, instead of gradient-based ramp functions, timed ramp functions are used to control the respective torque histories of the electric machine and the internal combustion engine during load transfer. Overlapping means in this embodiment that the ramp function within the same time interval their target moments for reach the load transfer. There are also other control options conceivable to realize the load transfer from the electric machine at least partially on the engine.
  • the initial torque of the electric machine which usually corresponds to the driver's desired torque, is reduced via the selected ramp function to a predetermined target torque. If an exclusive drive is to take place via the internal combustion engine, the target torque of the electric machine can be reduced to the value zero. Other values for the target torque are possible.
  • the initial torque of the internal combustion engine is increased via the ramp function to a predetermined target torque of the internal combustion engine. It is possible that the initial torque of the internal combustion engine does not assume the value zero but another arbitrary value, which is then taken as a starting value.
  • the sum of the respective torques of the electric motor and of the internal combustion engine determined from the ramp functions corresponds approximately to the driver's desired torque.
  • This can preferably be achieved by specifying only one ramp function and calculating the second from the first ramp function.
  • the hybrid propulsion system proposed according to the invention and the proposed method can be used in parallel hybrid propulsion systems, for example for city buses, distribution trucks and vans. There are also other applications conceivable. It is also possible that the method also takes into account a plurality of electric machines.
  • FIG. 2 shows a further diagram with a plurality of torque curves during a load transition by means of time-controlled ramp functions in accordance with a second embodiment variant of the method according to the invention.
  • FIGS. 1 and 2 each show, by way of example, a possible embodiment of the method according to the invention for controlling and / or regulating a partial load transfer in a hybrid drive arrangement of a vehicle.
  • the method specifies a possibility, for example, to carry out a partial load transfer from the electric machine to the internal combustion engine quickly and conveniently. This will change from a purely electric drive to a hybrid drive. However, it is also possible with the method to perform a full load transfer, so that is changed from the purely electric drive to the pure internal combustion engine drive. According to the invention, it is provided that the torque M EM to be applied by the electric machine and the torque M VM to be applied by the internal combustion engine are controlled by means of overlapping functions. In this way, the load transfer is carried out comfortably, without the driver noticing the drive change.
  • the torque M EM of the electric machine to be applied and the torque M VM of the internal combustion engine to be applied are each set with a gradient-controlled ramp function during a load transfer or partial load transfer.
  • the torque M EM of the electric motor corresponds to the driver request torque M Fa hr e r and the torque M VM of the internal combustion engine has the value zero.
  • the curves of the torques M EM , M VM of the electric machine and of the internal combustion engine are adjusted by means of predetermined gradients, with gradients with inverse gradients being used for the ramp functions in the embodiment shown in FIG.
  • the sum of the torque values M EM , M VM of the electric machine and of the internal combustion engine corresponds to the driver's desired torque M Fa hr e r-
  • the drive of the vehicle is partially realized by the electric machine and partly by the internal combustion engine.
  • FIG. 2 shows a diagram with time-controlled ramp functions according to a second embodiment variant. Also in this embodiment corresponds to the torque M EM of the electric machine before the start of the load transfer the driver's desired torque M Fa hr e r and the torque M VM of the internal combustion engine has the value of about zero. After the start of load transfer, the curves of the torques M EM , M VM of the Electric motor and the internal combustion engine so controlled that the transition is performed within a specified time interval T ⁇ bergang.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

The invention relates to a method for controlling and/or regulating at least one partial load transfer in a hybrid drive arrangement of a motor vehicle. According to said method, a driver's desired torque (MDriver) is applied by at least one electric motor and by an internal combustion engine and the torque (MEM) that is to be applied by the electric motor and the torque (MVM) that is to be applied by the internal combustion engine are controlled using overlapping functions.

Description

Verfahren zum Steuern und/oder Regeln zumindest einer Teillastübernahme bei einer Hvbridanthebsanordnunq Method for controlling and / or regulating at least part-load acceptance in a hybrid lifting arrangement
Die vorliegende Erfindung betrifft ein Verfahren zum Steuern und/oder Regeln zumindest einer Teillastübernahme bei einer Hybridantriebsanordnung eines Fahrzeuges gemäß der im Oberbegriff des Patentanspruches 1 näher definierten Art.The present invention relates to a method for controlling and / or regulating at least a partial load transfer in a hybrid drive arrangement of a vehicle according to the closer defined in the preamble of claim 1. Art.
Aus der Fahrzeugtechnik sind Verfahren zum Steuern und/oder Regeln einer Teillastübernahme bei einer Hybridantriebsanordnung eines Fahrzeuges bekannt. Diese Verfahren werden bei Hybridfahrzeugen angewendet, die üblicherweise einen Verbrennungsmotor, eine Elektromaschine und zumindest eine Kupplung sowie ein Getriebe umfassen. Mit dem bekannten Verfahren wird vom rein elektrischen Fahren auf Hybridfahren gewechselt. Dabei erfolgt eine Lastübernahme bzw. Teillastübernahme von der Elektromaschine auf die Elektromaschine und den Verbrennungsmotor gemeinsam. Das bekannte Verfahren führt eine schlagartige Lastübernahme durch. Da die Dynamik der Elektromaschine und des Verbrennungsmotors unterschiedlich sind, hat sich gezeigt, dass bei der schlagartig durchgeführten Lastübernahme Stöße im Antriebstrang auftreten. Somit wird die Lastübernahme von dem Fahrer bemerkt, so dass dadurch der Fahrkomfort reduziert wird.Methods for controlling and / or regulating a partial load transfer in a hybrid drive arrangement of a vehicle are known from vehicle technology. These methods are used in hybrid vehicles, which typically include an internal combustion engine, an electric machine, and at least one clutch and a transmission. With the known method is changed from purely electric driving on hybrid driving. Here is a load transfer or partial load transfer from the electric machine to the electric machine and the engine together. The known method performs a sudden load transfer. Since the dynamics of the electric machine and the internal combustion engine are different, it has been shown that occur in the sudden load transfer shocks in the drive train. Thus, the load transfer is noticed by the driver, thereby reducing the ride comfort.
Der vorliegenden Erfindung liegt die Aufgabe zu Grunde, ein Verfahren der eingangs beschriebenen Gattung vorzuschlagen, mit dem zumindest eine Lastübernahme bzw. Teillastübernahme durchführbar ist, ohne dabei den Fahrkomfort zu mindern.The present invention is based on the object to propose a method of the type described above, with which at least one load transfer or partial load takeover can be carried out without reducing the ride comfort.
Demnach wird ein Verfahren zum Steuern und/oder Regeln zumindest einer Teillastübernahme bei einer Hybridantriebsanordnung eines Fahrzeuges vorgeschlagen, bei dem ein Fahrerwunschmoment sowohl von zumindest einer Elektromaschine als auch von einem Verbrennungsmotor aufgebracht wird, und wobei das von der Elektromaschine aufzubringende Drehmoment und das von dem Verbrennungsmotor aufzubringende Drehmoment mittels überschneidender Funktionen angesteuert werden. Dies bedeutet, dass die Elektromaschine beispielsweise über ein Hybridsteuergerät derart angesteuert wird, dass das Drehmoment der Elektromaschine auf ein gewünschtes Zielmoment reduziert wird, wobei gleichzeitig der Verbrennungsmotor beispielsweise auch über das Hybridsteuergerät derart angesteuert wird, dass insgesamt das Fahrerwunschmoment erreicht wird. Das Zielmoment des Verbrennungsmotors kann von einer strategischen Momentverteilung des Hybridsteuergerätes vorgegeben werden. Durch die überschneidende Ansteuerung der Elektromaschine und des Verbrennungsmotors können Stöße im Antriebstrang vermieden werden, so dass der Fahrkomfort mit dem erfindungsgemäßen Verfahren erhöht wird. Dies wird dadurch erreicht, dass keine Sprünge in den Verläufen der Drehmomente auftreten.Accordingly, a method for controlling and / or regulating at least one part-load assumption in a hybrid drive arrangement of a vehicle is proposed, in which a driver's desired torque of both at least one Electric machine and is applied by an internal combustion engine, and wherein the torque to be applied by the electric motor and the torque to be applied by the internal combustion engine are controlled by means of overlapping functions. This means that the electric machine is controlled, for example via a hybrid control unit such that the torque of the electric machine is reduced to a desired target torque, at the same time the internal combustion engine, for example, via the hybrid control unit is controlled such that a total of the driver's desired torque is achieved. The target torque of the internal combustion engine can be predetermined by a strategic torque distribution of the hybrid control unit. By overlapping control of the electric machine and the engine shocks in the drive train can be avoided, so that the ride comfort is increased with the method according to the invention. This is achieved in that no jumps occur in the curves of the torques.
Im Rahmen einer möglichen Ausführungsvariante der Erfindung kann vorgesehen sein, dass beispielsweise die aufzubringenden Momente der Elektromaschine und des Verbrennungsmotors jeweils mittels einer gradientengesteuerten Rampenfunktion oder dergleichen eingestellt werden. Die sich jeweils überschneidenden Rampenfunktionen können vorzugsweise einen Gradienten haben, der sich lediglich in Vorzeichen unterscheidet. Es ist jedoch möglich, dass auch bezüglich des Betrags verschiedene Gradienten für die beiden Rampenfunktionen verwendet werden.As part of a possible embodiment of the invention can be provided that, for example, the applied torque of the electric machine and the internal combustion engine are each set by means of a gradient-controlled ramp function or the like. The intersecting ramp functions may preferably have a gradient that differs only in signs. However, it is possible that different gradients are also used for the two ramp functions in terms of magnitude.
Eine andere Ausführungsvariante der vorliegenden Erfindung kann vorsehen, das anstelle von Gradienten basierten Rampenfunktionen zeitgesteuerte Rampenfunktionen verwendet werden, um die jeweiligen Drehmomentverläufe der Elektromaschine und des Verbrennungsmotors bei der Lastübernahme anzusteuern. Überschneidend bedeutet bei dieser Ausführungsvariante, dass die Rampenfunktion innerhalb des gleichen Zeitintervalls ihre Zielmomente für die Lastübernahme erreichen. Es sind auch andere Steuerungsmöglichkeiten denkbar, um die Lastübernahme von der Elektromaschine zumindest teilweise auf den Verbrennungsmotor zu realisieren.Another embodiment of the present invention may provide that, instead of gradient-based ramp functions, timed ramp functions are used to control the respective torque histories of the electric machine and the internal combustion engine during load transfer. Overlapping means in this embodiment that the ramp function within the same time interval their target moments for reach the load transfer. There are also other control options conceivable to realize the load transfer from the electric machine at least partially on the engine.
Da bei den Rampenfunktionen immer nur kleine Änderungen bei den Drehmomentverläufen auftreten, können sich die unterschiedlichen Dynamiken der Elektromaschine und des Verbrennungsmotors nur als kleinere Abweichungen auswirken. Für den Fahrer ergibt sich dadurch ein unbemerkbarer Antriebswechsel.Since only minor changes in the torque characteristics occur with the ramp functions, the different dynamics of the electric machine and of the internal combustion engine can only have a smaller effect. For the driver, this results in an unnoticeable drive change.
Unabhängig von der jeweiligen Ausführungsvariante kann vorgesehen sein, dass das anfängliche Drehmoment der Elektromaschine, welches üblicherweise dem Fahrerwunschmoment entspricht, über die gewählte Rampenfunktion zu einem vorbestimmten Zieldrehmoment reduziert wird. Wenn ein ausschließlicher Antrieb über den Verbrennungsmotor erfolgen soll, kann das Zieldrehmoment der Elektromaschine auf den Wert Null verringert werden. Es sind auch andere Werte für das Zieldrehmoment möglich.Regardless of the respective embodiment, it can be provided that the initial torque of the electric machine, which usually corresponds to the driver's desired torque, is reduced via the selected ramp function to a predetermined target torque. If an exclusive drive is to take place via the internal combustion engine, the target torque of the electric machine can be reduced to the value zero. Other values for the target torque are possible.
Ebenfalls unabhängig von der jeweiligen Ausführungsvariante kann vorgesehen sein, dass das anfängliche Drehmoment des Verbrennungsmotors über die Rampenfunktion zu einem vorbestimmten Zieldrehmoment des Verbrennungsmotors erhöht wird. Es ist möglich, dass das anfängliche Drehmoment des Verbrennungsmotors nicht den Wert null sondern einen anderen beliebigen Wert annimmt, welcher dann als Startwert genommen wird.Also independently of the respective embodiment, it can be provided that the initial torque of the internal combustion engine is increased via the ramp function to a predetermined target torque of the internal combustion engine. It is possible that the initial torque of the internal combustion engine does not assume the value zero but another arbitrary value, which is then taken as a starting value.
Gemäß einer Weiterbildung der Erfindung kann vorgesehen sein, dass die Summe der jeweils aus den Rampenfunktionen ermittelten Drehmomente des Elektromotors und des Verbrennungsmotors etwa dem Fahrerwunschdrehmoment entspricht. Dies kann vorzugsweise dadurch erreicht werden, dass nur eine Rampenfunktion vorgegeben wird und die zweite aus der ersten Rampenfunktion berechnet wird. Vorzugsweise können die erfindungsgemäß vorgeschlagene Hybridantriebsanordnung und das vorgeschlagene Verfahren bei Parallelhybrid Antriebssytemen beispielsweise für Stadtbusse, Verteiler- Lastkraftwagen und Transporter eingesetzt werden. Es sind auch andere Einsatzgebiete denkbar. Zudem ist es möglich, dass bei dem Verfahren auch mehrere Elektromaschi- nen berücksichtigt werden.According to one embodiment of the invention, it can be provided that the sum of the respective torques of the electric motor and of the internal combustion engine determined from the ramp functions corresponds approximately to the driver's desired torque. This can preferably be achieved by specifying only one ramp function and calculating the second from the first ramp function. Preferably, the hybrid propulsion system proposed according to the invention and the proposed method can be used in parallel hybrid propulsion systems, for example for city buses, distribution trucks and vans. There are also other applications conceivable. It is also possible that the method also takes into account a plurality of electric machines.
Nachfolgend wird die Erfindung anhand der Zeichnungen näher erläutert. Es zeigen:The invention will be explained in more detail with reference to the drawings. Show it:
Fig. 1 ein Diagramm mit mehreren Drehmomentverläufen bei einem Lastübergang mittels Gradienten gesteuerten Rampenfunktionen gemäß einer ersten Ausführungsvariante des erfindungsgemäßen Verfahrens; und1 shows a diagram with a plurality of torque curves in a load transition by means of gradient-controlled ramp functions according to a first embodiment variant of the method according to the invention; and
Fig. 2 ein weiteres Diagramm mit mehreren Drehmomentverläufen bei einem Lastübergang mittels Zeit gesteuerten Rampenfunktionen gemäß einer zweiten Ausführungsvariante des erfindungsgemäßen Verfahrens.2 shows a further diagram with a plurality of torque curves during a load transition by means of time-controlled ramp functions in accordance with a second embodiment variant of the method according to the invention.
In den Figuren 1 und 2 sind jeweils beispielhaft eine mögliche Ausführungsvariante des erfindungsgemäßen Verfahrens zum Steuern und/oder Regeln einer Teillastübernahme bei einer Hybridantriebsanordnung eines Fahrzeuges dargestellt.FIGS. 1 and 2 each show, by way of example, a possible embodiment of the method according to the invention for controlling and / or regulating a partial load transfer in a hybrid drive arrangement of a vehicle.
Durch das Verfahren wird eine Möglichkeit angegeben, beispielsweise eine Teillastübernahme von der Elektromaschine auf den Verbrennungsmotor schnell und komfortabel durchzuführen. Dadurch wird von einem rein elektrischen Antrieb zu einem Hybridantrieb gewechselt. Es ist jedoch auch möglich mit dem Verfahren eine vollständige Lastübernahme durchzuführen, so dass vom rein elektrischen Antrieb zum reinen verbrennungsmotorischen Antrieb gewechselt wird. Erfindungsgemäß ist vorgesehen, dass das von der Elektromaschine aufzubringende Drehmoment MEM und das von dem Verbrennungsmotor aufzubringende Drehmoment MVM mittels überschneidender Funktionen angesteuert werden. Auf diese Weise wird die Lastübernahme komfortabel durchgeführt, ohne dass der Fahrer den Antriebswechsel bemerkt.The method specifies a possibility, for example, to carry out a partial load transfer from the electric machine to the internal combustion engine quickly and conveniently. This will change from a purely electric drive to a hybrid drive. However, it is also possible with the method to perform a full load transfer, so that is changed from the purely electric drive to the pure internal combustion engine drive. According to the invention, it is provided that the torque M EM to be applied by the electric machine and the torque M VM to be applied by the internal combustion engine are controlled by means of overlapping functions. In this way, the load transfer is carried out comfortably, without the driver noticing the drive change.
Gemäß Figur 1 wird bei einer Lastübernahme beziehungsweise einer Teillastübernahme das aufzubringende Drehmoment MEM der Elektromaschine und das aufzubringende Drehmoment MVM des Verbrennungsmotors jeweils mit einer Gradienten gesteuerten Rampenfunktion eingestellt. Vor dem Beginn der Lastübernahme entspricht das Drehmoment MEM der Elektromaschine dem Fahrerwunschdrehmoment MFahrer und das Drehmoment MVM des Verbrennungsmotors hat den Wert null. Nach dem Start der Lastübernahme werden die Verläufe der Drehmomente MEM, MVM der Elektromaschine und des Verbrennungsmotors mittels vorbestimmten Gradienten eingestellt, wobei bei der gezeigten Ausführungsvariante gemäß Figur 1 Gradienten mit inversen Steigungen für die Rampenfunktionen verwendet werden.According to FIG. 1, the torque M EM of the electric machine to be applied and the torque M VM of the internal combustion engine to be applied are each set with a gradient-controlled ramp function during a load transfer or partial load transfer. Before the start of the load transfer the torque M EM of the electric motor corresponds to the driver request torque M Fa hr e r and the torque M VM of the internal combustion engine has the value zero. After the start of the load transfer, the curves of the torques M EM , M VM of the electric machine and of the internal combustion engine are adjusted by means of predetermined gradients, with gradients with inverse gradients being used for the ramp functions in the embodiment shown in FIG.
Am Ende der Teillastübernahme entspricht die Summe der Drehmomentwerte MEM, MVM der Elektromaschine und des Verbrennungsmotors dem Fahrerwunschdrehmoment MFahrer- Somit wird der Antrieb des Fahrzeuges teilweise über die Elektromaschine und teilweise über den Verbrennungsmotor realisiert.At the end of the partial load transfer, the sum of the torque values M EM , M VM of the electric machine and of the internal combustion engine corresponds to the driver's desired torque M Fa hr e r- Thus, the drive of the vehicle is partially realized by the electric machine and partly by the internal combustion engine.
In Figur 2 ist ein Diagramm mit zeitgesteuerten Rampenfunktionen gemäß einer zweiten Ausführungsvariante gezeigt. Auch bei dieser Ausführungsvariante entspricht das Drehmoment MEM der Elektromaschine vor dem Start der Lastübernahme dem Fahrerwunschdrehmoment MFahrer und das Drehmoment MVM des Verbrennungsmotors hat den Wert von etwa null. Nach dem Start der Lastübernahme werden die Verläufe der Drehmomente MEM, MVM des Elektromotors und des Verbrennungsmotors so angesteuert, dass der Übergang innerhalb eines festgelegten Zeitintervalls Tύbergang durchgeführt wird. Nach dem Ende des Zeitintervalls Tύbergang hat der Antriebswechsel stattgefunden, bei dem der Verbrennungsmotor nahezu das Fahrerwunschdrehmoment aufbringt und die Elektromaschine nur noch einen geringen oder keinen Anteil des Fahrerwunschdrehmoments MFahrer aufbringt, wobei die Verteilung der Drehmomente MEM, MVM des Elektromotors und des Verbrennungsmotors nur beispielhaft gewählt sind. Es sind auch andere Verteilungen denkbar. FIG. 2 shows a diagram with time-controlled ramp functions according to a second embodiment variant. Also in this embodiment corresponds to the torque M EM of the electric machine before the start of the load transfer the driver's desired torque M Fa hr e r and the torque M VM of the internal combustion engine has the value of about zero. After the start of load transfer, the curves of the torques M EM , M VM of the Electric motor and the internal combustion engine so controlled that the transition is performed within a specified time interval Tύbergang. After the end of the time interval Tύbergang the drive change has taken place, in which the engine applies almost the driver's desired torque and the electric machine only a small or no share of the driver's request torque M driver applies, the distribution of torque M E M, M V M of the electric motor and the internal combustion engine are chosen only by way of example. There are also other distributions conceivable.
BezuqszeichenREFERENCE CHARACTERS
MEM Drehmoment der ElektromaschineM EM torque of the electric machine
MVM Drehmoment des VerbrennungsmotorsM VM torque of the internal combustion engine
MFahrer FahrerwunschdrehmomentMF driver driver torque
Tύbergang Zeitintervall für die Lastübernahme Transition time interval for the load transfer

Claims

Patentan sprü ch e Patent Attorney
1. Verfahren zum Steuern und/oder Regeln zumindest einer Teillastübernahme bei einer Hybridantriebsanordnung eines Fahrzeuges, bei dem ein Fahrerwunschmoment (MFahrer) sowohl von zumindest einer Elektromaschine als auch von einem Verbrennungsmotor aufgebracht wird, dadurch g e k e n n z e i c h n e t, dass das von der Elektromaschine aufzubringende Drehmoment (MEM) und das von dem Verbrennungsmotor aufzubringende Drehmoment (MVM) mittels überschneidender Funktionen angesteuert werden.1. A method for controlling and / or regulating at least a partial load transfer in a hybrid drive arrangement of a vehicle, in which a driver's desired torque (M Fa hr e r) is applied both from at least one electric machine and an internal combustion engine, characterized in that the of the electric machine applied torque (M EM ) and applied by the internal combustion engine torque (M VM ) are controlled by means of overlapping functions.
2. Verfahren nach Anspruch 1 , dadurch geken n zei ch n et, dass das aufzubringende Drehmoment (MEM) der Elektromaschine und das aufzubringende Drehmoment (MVM) des Verbrennungsmotors jeweils mittels einer Gradienten gesteuerten Rampenfunktionen eingestellt werden.2. The method of claim 1, characterized Porsche Style n zei ch et, that the applied torque (M EM ) of the electric machine and the applied torque (M VM ) of the engine are each set by means of a gradient-controlled ramp functions.
3. Verfahren nach Anspruch 1 , dadurch geken n zei ch n et, dass das aufzubringende Drehmoment (MEM) der Elektromaschine und das aufzubringende Drehmoment (MVM) des Verbrennungsmotors jeweils mittels einer Zeit gesteuerten Rampenfunktion eingestellt werden.3. The method of claim 1, characterized Porsche Style n zei ch et, that the applied torque (M EM ) of the electric machine and the applied torque (M VM ) of the engine are each set by means of a time-controlled ramp function.
4. Verfahren nach Anspruch 3, dadurch geken n zei ch n et, dass die Lastübernahme bei den Zeit gesteuerten Rampenfunktionen durch ein vorbestimmtes Zeitintervall (Tύbergang) begrenzt wird.4. Method according to claim 3, characterized in that the load transfer in the time-controlled ramp functions is limited by a predetermined time interval (transition).
5. Verfahren nach einem der Ansprüche 2 bis 4, dadurch geken n zei c h n e t, dass das anfängliche Drehmoment (MEM) der Elektromaschine, welches dem Fahrerwunschmoment (MFahrer) entspricht, über die Rampenfunktionen auf ein vorbestimmtes Zieldrehmoment der Elektromaschine geführt wird. Led 5. The method according to any one of claims 2 to 4, characterized geken n zei seframe that the initial torque (M EM) of the electric machine, which the driver's desired torque (M Fa hr e r) corresponds to the ramp functions to a predetermined target torque of the electric machine becomes.
6. Verfahren nach einem der Ansprüche 2 bis 5, dadurch g e ke n n ze i c h n e t, dass das anfängliche Drehmoment (MVM) des Verbrennungsmotors über die Rampenfunktion auf ein vorbestimmtes Zieldrehmoment des Verbrennungsmotors geführt wird.6. The method according to any one of claims 2 to 5, characterized ge ke nn ze zenet that the initial torque (M V M) of the internal combustion engine via the ramp function to a predetermined target torque of the internal combustion engine is performed.
7. Verfahren nach einem der Ansprüche 2 bis 6, dadurch g e ke n n ze i c h n e t, dass das Drehmoment (MEM) der Elektromaschine und das Drehmoment (MVM) des Verbrennungsmotors, welche aus den jeweiligen Rampenfunktionen ermittelt werden, derart gewählt werden, dass die Summe aus dem Drehmoment (MEM) der Elektromaschine und dem Drehmoment (MVM) des Verbrennungsmotors etwa dem Fahrerwunschdrehmoment (MFahrer) entspricht. 7. Method according to one of claims 2 to 6, characterized in that the torque (M E M) of the electric machine and the torque (MVM) of the internal combustion engine, which are determined from the respective ramp functions, are selected such that the sum of the torque (M E M) of the electric machine and the torque (M V M) of the internal combustion engine corresponds approximately to the driver's desired torque (M Fa hr e r).
EP08860146A 2007-12-10 2008-12-01 Method for controlling and/or regulating at least one partial load transfer in a hybrid drive arrangement Withdrawn EP2219922A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007055740A DE102007055740A1 (en) 2007-12-10 2007-12-10 Method for controlling and / or regulating at least one partial load transfer in a hybrid drive arrangement
PCT/EP2008/066490 WO2009074472A1 (en) 2007-12-10 2008-12-01 Method for controlling and/or regulating at least one partial load transfer in a hybrid drive arrangement

Publications (1)

Publication Number Publication Date
EP2219922A1 true EP2219922A1 (en) 2010-08-25

Family

ID=40457008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08860146A Withdrawn EP2219922A1 (en) 2007-12-10 2008-12-01 Method for controlling and/or regulating at least one partial load transfer in a hybrid drive arrangement

Country Status (6)

Country Link
US (1) US20110190969A1 (en)
EP (1) EP2219922A1 (en)
JP (1) JP2011507745A (en)
CN (1) CN101896389A (en)
DE (1) DE102007055740A1 (en)
WO (1) WO2009074472A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011101138A1 (en) * 2011-05-11 2012-11-15 Volkswagen Aktiengesellschaft Method for activating an internal combustion engine for a vehicle and corresponding control and vehicle
US20130297125A1 (en) * 2012-05-07 2013-11-07 Ford Global Technologies, Llc Torque filling and torque coordination during transients in a hybrid vehicle
JP6207327B2 (en) * 2013-09-30 2017-10-04 ダイハツ工業株式会社 Hybrid system
KR102441058B1 (en) 2016-12-02 2022-09-06 현대자동차주식회사 Apparatus for calibration engine max torque of hybrid vehicle and method thereof
DE102017203347A1 (en) 2017-03-01 2018-09-06 Volkswagen Aktiengesellschaft Method and engine control for operating an internal combustion engine of a motor vehicle during a starting process of the internal combustion engine
DE102018208760A1 (en) * 2018-06-04 2019-12-05 Zf Friedrichshafen Ag Method and control device for operating a drive train
CN112339742A (en) * 2019-08-09 2021-02-09 比亚迪股份有限公司 Hybrid electric vehicle, torque distribution method and torque distribution device thereof
DE102020216029B4 (en) 2020-12-16 2023-03-30 Robert Bosch Gesellschaft mit beschränkter Haftung Method of operating an engine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5713425A (en) * 1996-01-16 1998-02-03 Ford Global Technologies, Inc. Parallel hybrid powertrain for an automotive vehicle
JP3775012B2 (en) * 1997-08-29 2006-05-17 アイシン・エィ・ダブリュ株式会社 Hybrid drive device for vehicle
DE10145891A1 (en) * 2001-09-07 2003-06-12 Daimler Chrysler Ag Method and control for damping the torque oscillations of the drive train of an electrically driven road vehicle
FR2887496B1 (en) * 2005-06-27 2007-09-14 Peugeot Citroen Automobiles Sa METHOD FOR PILOTING THE COUPLING OR DECOUPLING OF TWO ENGINES OF A PARALLEL HYBRID MOTOR POWERTRAIN
DE102006005468B4 (en) * 2006-02-07 2017-09-21 Zf Friedrichshafen Ag Method for operating a parallel hybrid drive train of a vehicle
DE102006055448A1 (en) * 2006-02-13 2007-09-06 Volkswagen Ag Method for decoupling at least one torque source, drive for a motor vehicle, control system and motor vehicle
DE102007049137A1 (en) * 2007-10-12 2009-04-16 Zf Friedrichshafen Ag Hybrid drive arrangement and method for controlling and / or regulating a starting process in a hybrid drive arrangement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009074472A1 *

Also Published As

Publication number Publication date
US20110190969A1 (en) 2011-08-04
DE102007055740A1 (en) 2009-06-18
CN101896389A (en) 2010-11-24
JP2011507745A (en) 2011-03-10
WO2009074472A1 (en) 2009-06-18

Similar Documents

Publication Publication Date Title
WO2009074472A1 (en) Method for controlling and/or regulating at least one partial load transfer in a hybrid drive arrangement
DE102013222353A1 (en) METHOD AND SYSTEM FOR CONTROLLING A MOTOR START FOR A HYBRID VEHICLE WHEN A STARTER MOTOR IS IN DIFFICULTY
DE102013104315A1 (en) Controlled regenerative brake torque increase when downshifting hybrid vehicles
WO2007006442A1 (en) Drive device for a motor vehicle
DE102008043159A1 (en) Method and device for starting a hybrid vehicle
DE102013219085A1 (en) Method and control device for operating a road-locked hybrid vehicle
DE102008042228A1 (en) Method for adjusting a motor drive device in a motor vehicle
EP1989087B1 (en) Method and device for controlling the traction slip of the driven wheels of a vehicle with the engine torque as a set parameter
WO2003059674A1 (en) Method for controlling the hybrid drive of a vehicle
WO2022184398A1 (en) Method and control device for operating a roadbound all-wheel vehicle
DE102014200427A1 (en) Method and control device for operating a road-locked hybrid vehicle
EP3592588A1 (en) Method for controlling a motor vehicle and motor vehicle
DE102006020934B4 (en) Drive train device of a vehicle
DE102007047589A1 (en) Dynamic stop with parallel hybrid
EP2254781B1 (en) Method and arrangement for controlling a vehicle with a hybrid drive
EP1859326A1 (en) Method for controlling a controllable unit
DE102011078512A1 (en) Method of shifting dual clutch transmission of e.g. truck, involves performing gear change while drive shaft is driven by electric motor, after separating frictional connection between combustion engine and drive shaft
DE102019211916A1 (en) Method for starting an internal combustion engine
DE102020005598A1 (en) Method for applying an operating strategy for a hybrid vehicle
DE102015214025A1 (en) Method for operating a motor vehicle
DE102015212623A1 (en) Method for operating parallel-connected generator units
WO2009050044A1 (en) Hybrid drive arrangement and method for controlling and/or regulating a hybrid drive arrangement of a vehicle
DE112004002079B4 (en) Method for controlling a drive machine for a vehicle
DE102011002890A1 (en) Method for controlling shifting of operation range of internal combustion engine and electric engine with different responding behaviors in hybrid driving mode in parallel-hybrid-drive train, involves controlling torque of electric engine
WO2023169707A1 (en) Control unit and method for distributing torque in the event of a load change

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20100525

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20110803

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20111206