DE102012211920A1 - Method for operating road-coupled hybrid vehicle, involves adjusting target torque of electromotor during transition of operating mode to another operation mode such that raising moment of engine is compensated by control unit - Google Patents

Method for operating road-coupled hybrid vehicle, involves adjusting target torque of electromotor during transition of operating mode to another operation mode such that raising moment of engine is compensated by control unit

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Publication number
DE102012211920A1
DE102012211920A1 DE201210211920 DE102012211920A DE102012211920A1 DE 102012211920 A1 DE102012211920 A1 DE 102012211920A1 DE 201210211920 DE201210211920 DE 201210211920 DE 102012211920 A DE102012211920 A DE 102012211920A DE 102012211920 A1 DE102012211920 A1 DE 102012211920A1
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DE
Germany
Prior art keywords
combustion engine
internal combustion
hybrid vehicle
mode
operating mode
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.)
Pending
Application number
DE201210211920
Other languages
German (de)
Inventor
Silke Blass
Tilo Marschall
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE201210211920 priority Critical patent/DE102012211920A1/en
Publication of DE102012211920A1 publication Critical patent/DE102012211920A1/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W10/00Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K6/00Arrangement 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
    • B60K6/20Arrangement 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
    • B60K6/42Arrangement 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
    • B60K6/44Series-parallel type
    • B60K6/448Electrical distribution type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K6/00Arrangement 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
    • B60K6/20Arrangement 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
    • B60K6/50Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/52Driving a plurality of drive axles, e.g. four-wheel drive
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W10/00Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W10/00Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08Conjoint 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W10/00Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W20/00Control systems specially adapted for hybrid vehicles
    • B60W20/40Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W2710/00Output or target parameters relating to a particular sub-units
    • B60W2710/08Electric propulsion units
    • B60W2710/083Torque
    • Y02T10/6243
    • Y02T10/6265
    • Y02T10/6286

Abstract

The method involves utilizing two electromotors (1, 2) as drive motor on two axles of a hybrid vehicle, where one of the electromotors is switched in series to a combustion engine (3). An input side of an automatic transmission (4) is connected with the engine. Target torque (9) of the other electromotor is adjusted in a connection phase of the engine during transition of a first operating mode to a second operation mode such that raising moment of the internal combustion engine is compensated during starting by an electronic control unit.

Description

  • The invention relates to a method for operating a hybrid vehicle according to the preamble of patent claim 1.
  • Such a method is for example in connection with a (full) hybrid vehicle from the DE 10 2010 005 532 A1 known. In this case, the so-called "response" problem is treated in the case of a start of an internal combustion engine switched off in a first operating mode. The term "response" is to be understood as meaning the feedback perceivable by the driver of the implementation of his desired wheel moment or acceleration desired. This feedback is caused by noticeable tensile force of the drive motor via a non-positive connection to the gearbox or to the drive wheels, especially in load-dependent condition based on an acceleration request. This "response" should therefore be felt as quickly as possible.
  • It is an object of the invention to improve a method of the type mentioned above with regard to the reduction in wear of the gearbox in the case of a booster engine that is temporarily switched off during the journey.
  • This object is achieved by the subject of claim 1. Dependent claims are advantageous developments of the invention.
  • In particular, the invention is based on so-called road-coupled hybrid vehicles with at least one first electric motor, which acts as a drive motor on a first axis of the hybrid vehicle, and with an internal combustion engine, which acts as a drive motor on a second axis of the hybrid vehicle.
  • Such hybrid vehicles are in a first operating mode, in which is switched off while driving with purely electric motor drive by the first electric motor of the internal combustion engine with the automatic transmission open, and in a second operating mode in which the internal combustion engine is turned on while the automatic transmission is closed, operable.
  • In hybrid vehicles of this kind, it is also known to switch a second electric motor in series with the internal combustion engine, at least temporarily. The moments of the second electric motor and the internal combustion engine can be controlled in superimposed manner.
  • According to the invention, in a connection phase of the internal combustion engine during the transition from the first operating mode to the second operating mode by means of an electronic control unit, a desired torque of the second electric motor is adjusted in such a way that the rising torque of the starting internal combustion engine is compensated. In such a state of the internal combustion engine, in which an open gearbox (in particular automatic transmission) must be closed, so a non-positive connection between the engine and transmission output must be made ("Ankoppelvorgang"), before reaching the Ankoppelvorgang first reach a target speed at the transmission input, when coupling about the speed of the internal combustion engine must correspond (also called synchronous speed). The target speed results from gear and vehicle speed. Only when the target speed (synchronous speed) has been reached can the transmission begin to close the clutch (s) for reasons of wear and comfort. In this case, similar to a gearshift, the components of the automatic transmission by remaining speed differences wear out, since the synchronous speed can not be set in an ideal manner or may not be a suitable gear.
  • By the invention, therefore, the torque acting on the clutch (s) of the automatic transmission during the Zuschaltphase is reduced in order to achieve a design-relevant load reduction. Thus, loaded components can be designed easier and weight and cost can be saved.
  • The invention is particularly advantageous for system-related connection phases, for example, by falling below a defined minimum battery charge threshold to apply; because the driver's desired torque remains constant at first. By means of the invention, in particular in the case of hybrid hybrid vehicles, the axle to be coupled can be coupled without load. The total torque, which may result from the moment of the first driving electric motor on a first axis and from the moment of the connected internal combustion engine to be coupled to the second axis, according to the invention distributed after closing the automatic transmission or its clutch (s) on both axes ,
  • Details of the invention are explained in more detail in the following embodiment with reference to the drawing. The single FIGURE shows a schematic representation of the method according to the invention with reference to a road-coupled hybrid vehicle.
  • In the single figure is a so-called road-coupled hybrid vehicle with a first electric motor 1 acting as a drive motor For example, acts on the front axle VA, and with an internal combustion engine 3 , which acts as a drive motor to the rear axle, shown. A second electric motor 2 is in series with the combustion engine 3 switchable. An automatic transmission 4 is input side with the internal combustion engine 3 connectable.
  • Analogously, the invention is also for a differently arranged sequence of the components 2 . 3 and 4 applicable; z. B. also for an arrangement in which the electric motor 2 between the internal combustion engine 3 and the automatic transmission 4 is arranged.
  • The hybrid vehicle may be in a first mode of operation in which the internal combustion engine is being driven 3 with open automatic transmission 4 is off, and in a second mode of operation, during which the internal combustion engine 3 with closed automatic transmission 4 is turned on, operated. In a connection phase of the internal combustion engine 4 is during the transition from the first operating mode in the second operating mode by means of the electronic control unit 5 a target moment 9 of the second electric motor 2 set in the way that the rising moment 8th of the starting combustion engine 3 is compensated. The compensation of the moment 8th of the internal combustion engine 3 through the target moment 9 of the second electric motor 2 is preferably made from the beginning of the t1 Zuschaltphase to at least almost complete adhesion, so that the rear axle is coupled without load. Thus, only after closing the coupling necessary for the adhesion 6 at time t2, the total drive torque of the internal combustion engine 3 and the first electric motor 1 distributed on both axes. After that we get the compensating target moment 9 of the second electric motor again - preferably ramped - returned to zero.
  • The invention is particularly advantageous when the internal combustion engine due to the system, z. B. depending on the state of charge of the battery, is switched on, since while the target wheel torque remains constant.
  • If the desired wheel torque is to increase, for example, by an increased driver's request (eg via accelerator pedal angle), this can be delayed according to the invention until the adhesion is established. Also, in this case, could until the adhesion by the first electric motor 1 an increase of the target wheel torque initially still transitional by the first electric motor 1 if and insofar as it still has a reserve of torque.
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • DE 102010005532 A1 [0002]

Claims (2)

  1. Method for operating a hybrid vehicle with at least one first electric motor ( 1 ), which acts as a drive motor on a first axis of the hybrid vehicle, and with a second electric motor ( 2 ) in series with an internal combustion engine ( 3 ), which acts as a drive motor on a second axis of the hybrid vehicle, is switchable, and with an automatic transmission ( 4 ), the input side with the internal combustion engine ( 3 ) is connectable, wherein the hybrid vehicle in a first operating mode, in which while driving the internal combustion engine ( 3 ) with open automatic transmission ( 4 ) is switched off, and in a second operating mode, during which the internal combustion engine ( 3 ) is switched on when the automatic transmission is closed, is operable and wherein in a connection phase of the internal combustion engine ( 4 ) during the transition from the first operating mode to the second operating mode by means of an electronic control unit ( 5 ) a desired moment ( 9 ) of the second electric motor ( 2 ) is adjusted in such a way that the rising moment ( 8th ) of the starting combustion engine ( 3 ) is compensated.
  2. Method according to claim 1, characterized in that the compensation of the moment of the internal combustion engine ( 3 ) by the desired torque of the second electric motor ( 3 ) is made to at least almost complete adhesion.
DE201210211920 2012-07-09 2012-07-09 Method for operating road-coupled hybrid vehicle, involves adjusting target torque of electromotor during transition of operating mode to another operation mode such that raising moment of engine is compensated by control unit Pending DE102012211920A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE201210211920 DE102012211920A1 (en) 2012-07-09 2012-07-09 Method for operating road-coupled hybrid vehicle, involves adjusting target torque of electromotor during transition of operating mode to another operation mode such that raising moment of engine is compensated by control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201210211920 DE102012211920A1 (en) 2012-07-09 2012-07-09 Method for operating road-coupled hybrid vehicle, involves adjusting target torque of electromotor during transition of operating mode to another operation mode such that raising moment of engine is compensated by control unit

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014001774U1 (en) 2014-02-28 2014-05-02 Bayerische Motoren Werke Aktiengesellschaft Control device for operating a road-locked hybrid vehicle
DE102013213145A1 (en) 2013-07-04 2015-01-08 Bayerische Motoren Werke Aktiengesellschaft Method for controlling the operation of a hybrid vehicle
DE102013219085A1 (en) 2013-09-23 2015-03-26 Bayerische Motoren Werke Aktiengesellschaft Method and control device for operating a road-locked hybrid vehicle
DE102013016756A1 (en) * 2013-10-10 2015-04-16 Audi Ag Method for operating a drive train for a four-wheel drive motor vehicle
DE102014200427A1 (en) 2014-01-13 2015-07-16 Bayerische Motoren Werke Aktiengesellschaft Method and control device for operating a road-locked hybrid vehicle
DE102014202103A1 (en) 2014-02-05 2015-08-06 Bayerische Motoren Werke Aktiengesellschaft Method and control device for operating a road-locked hybrid vehicle
DE102014203668A1 (en) 2014-02-28 2015-09-03 Bayerische Motoren Werke Aktiengesellschaft Control device for operating a road-locked hybrid vehicle
WO2016180806A1 (en) * 2015-05-11 2016-11-17 Volkswagen Aktiengesellschaft Method for starting an internal combustion engine of a four-wheel-drive hybrid vehicle
US9623863B2 (en) 2014-02-28 2017-04-18 Bayerische Motoren Werke Aktiengesellschaft Control device for operating a road-coupled hybrid vehicle

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US20010020789A1 (en) * 2000-03-07 2001-09-13 Jatco Transtechnology Ltd. Parallel hybrid vehicle employing parallel hybrid system, using both internal combustion engine and electric motor generator for propulsion
DE10311885A1 (en) * 2002-03-28 2003-10-09 Luk Lamellen & Kupplungsbau Vehicle transmission systems
DE10360804A1 (en) * 2003-12-23 2005-07-28 Bayerische Motoren Werke Ag Drive device for motor vehicle, has electrical machine coupled with internal combustion engine, and control unit arranged such that influence of crankshaft moment takes place via control of machine
DE102005034794A1 (en) * 2004-07-23 2006-02-23 Ford Global Technologies, LLC, Dearborn Method for attenuating vibration of engine in hybrid electric vehicle powertrain, involves determining command corresponding to generator torque transmitted to gearing element, based on actual speed of engine
DE102009002166A1 (en) * 2009-04-03 2010-10-14 Robert Bosch Gmbh Method and device for operating a hybrid vehicle
DE102009002177A1 (en) * 2009-04-03 2010-10-21 Robert Bosch Gmbh Method for operating a hybrid vehicle
DE102009054752A1 (en) * 2009-12-16 2011-06-22 ZF Friedrichshafen AG, 88046 Powertrain with an automated group transmission
DE102010005532A1 (en) 2010-01-23 2011-07-28 Bayerische Motoren Werke Aktiengesellschaft, 80809 Method for determining a desired transmission gear for a hybrid vehicle
DE102010061823A1 (en) * 2010-11-24 2012-05-24 Zf Friedrichshafen Ag Method for operating a drive train

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010020789A1 (en) * 2000-03-07 2001-09-13 Jatco Transtechnology Ltd. Parallel hybrid vehicle employing parallel hybrid system, using both internal combustion engine and electric motor generator for propulsion
DE10311885A1 (en) * 2002-03-28 2003-10-09 Luk Lamellen & Kupplungsbau Vehicle transmission systems
DE10360804A1 (en) * 2003-12-23 2005-07-28 Bayerische Motoren Werke Ag Drive device for motor vehicle, has electrical machine coupled with internal combustion engine, and control unit arranged such that influence of crankshaft moment takes place via control of machine
DE102005034794A1 (en) * 2004-07-23 2006-02-23 Ford Global Technologies, LLC, Dearborn Method for attenuating vibration of engine in hybrid electric vehicle powertrain, involves determining command corresponding to generator torque transmitted to gearing element, based on actual speed of engine
DE102009002166A1 (en) * 2009-04-03 2010-10-14 Robert Bosch Gmbh Method and device for operating a hybrid vehicle
DE102009002177A1 (en) * 2009-04-03 2010-10-21 Robert Bosch Gmbh Method for operating a hybrid vehicle
DE102009054752A1 (en) * 2009-12-16 2011-06-22 ZF Friedrichshafen AG, 88046 Powertrain with an automated group transmission
DE102010005532A1 (en) 2010-01-23 2011-07-28 Bayerische Motoren Werke Aktiengesellschaft, 80809 Method for determining a desired transmission gear for a hybrid vehicle
DE102010061823A1 (en) * 2010-11-24 2012-05-24 Zf Friedrichshafen Ag Method for operating a drive train

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013213145A1 (en) 2013-07-04 2015-01-08 Bayerische Motoren Werke Aktiengesellschaft Method for controlling the operation of a hybrid vehicle
DE102013219085A1 (en) 2013-09-23 2015-03-26 Bayerische Motoren Werke Aktiengesellschaft Method and control device for operating a road-locked hybrid vehicle
US9914444B2 (en) 2013-09-23 2018-03-13 Bayerische Motoren Werke Aktiengesellschaft Method and control device for operating a road-coupled hybrid vehicle
DE102013016756A1 (en) * 2013-10-10 2015-04-16 Audi Ag Method for operating a drive train for a four-wheel drive motor vehicle
DE102013016756B4 (en) * 2013-10-10 2015-07-09 Audi Ag Method for operating a drive train for a four-wheel drive motor vehicle
DE102014200427A1 (en) 2014-01-13 2015-07-16 Bayerische Motoren Werke Aktiengesellschaft Method and control device for operating a road-locked hybrid vehicle
DE102014202103A1 (en) 2014-02-05 2015-08-06 Bayerische Motoren Werke Aktiengesellschaft Method and control device for operating a road-locked hybrid vehicle
US9266531B2 (en) 2014-02-05 2016-02-23 Bayerische Motoren Werke Aktiengesellschaft Method and control apparatus for operating a road-bound hybrid vehicle
DE202014001774U1 (en) 2014-02-28 2014-05-02 Bayerische Motoren Werke Aktiengesellschaft Control device for operating a road-locked hybrid vehicle
DE102014203668A1 (en) 2014-02-28 2015-09-03 Bayerische Motoren Werke Aktiengesellschaft Control device for operating a road-locked hybrid vehicle
US9623863B2 (en) 2014-02-28 2017-04-18 Bayerische Motoren Werke Aktiengesellschaft Control device for operating a road-coupled hybrid vehicle
WO2016180806A1 (en) * 2015-05-11 2016-11-17 Volkswagen Aktiengesellschaft Method for starting an internal combustion engine of a four-wheel-drive hybrid vehicle

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