DE102007043586A1 - Hybrid vehicle's drive unit controlling method, involves adjusting creep speed by electrical machine depending on available braking demand, where creep speed is maintained according to shortfall of braking demand - Google Patents

Hybrid vehicle's drive unit controlling method, involves adjusting creep speed by electrical machine depending on available braking demand, where creep speed is maintained according to shortfall of braking demand Download PDF

Info

Publication number
DE102007043586A1
DE102007043586A1 DE102007043586A DE102007043586A DE102007043586A1 DE 102007043586 A1 DE102007043586 A1 DE 102007043586A1 DE 102007043586 A DE102007043586 A DE 102007043586A DE 102007043586 A DE102007043586 A DE 102007043586A DE 102007043586 A1 DE102007043586 A1 DE 102007043586A1
Authority
DE
Germany
Prior art keywords
speed
combustion engine
request
internal combustion
drive
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.)
Granted
Application number
DE102007043586A
Other languages
German (de)
Other versions
DE102007043586B4 (en
Inventor
Matthias Herger
Franz Bichler
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 DE102007043586.1A priority Critical patent/DE102007043586B4/en
Publication of DE102007043586A1 publication Critical patent/DE102007043586A1/en
Application granted granted Critical
Publication of DE102007043586B4 publication Critical patent/DE102007043586B4/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18063—Creeping
    • 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
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08—Interaction between the driver and the control system
    • 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

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)

Abstract

The method involves controlling electrical and internal combustion engines by a control device depending on torque desired by a driver presettable by a driver desire presetting device. The combustion engine is decoupled by a drive train below a preset threshold speed of a gear output shaft. A creep speed is adjusted by an electrical machine depending on an available braking demand, where the creep speed is maintained according to a shortfall of the demand. The combustion engine is coupled in the drive train during an acceleration demand in a case that the threshold speed is attained.

Description

Die Erfindung betrifft ein Verfahren zur Steuerung einer Antriebseinheit eines Hybridfahrzeugs nach dem Oberbegriff des Anspruchs 1. Ferner betrifft die Erfindung eine Steuereinheit zur Durchführung des erfindungsgemäßen Verfahrens sowie ein Hybridfahrzeug umfassend eine derartige Steuereinheit.The The invention relates to a method for controlling a drive unit a hybrid vehicle according to the preamble of claim 1. Further The invention relates to a control unit for implementation the method according to the invention and a hybrid vehicle comprising such a control unit.

Bei heutigen über eine Brennkraftmaschine angetriebenen Kraftfahrzeugen stellt sich eine so genannte Kriechgeschwindigkeit ein bzw. wird ein Kraftfahrzeug auf eine bestimmte Kriechgeschwindigkeit beschleunigt, wenn ein Fahrzeug, ausgehend von einem Fahrzeugstillstand oder einer Fahrzeuggeschwindigkeit kleiner gleich der Kriechgeschwindigkeit, bei eingelegter Gangstufe und nicht betätigtem Fahrpedal (Gaspedal) betrieben wird. Dabei wird über die Brennkraftmaschine bei vorbestimmter Leerlaufdrehzahl ein gewisses Antriebsmoment erzeugt über welches das Fahrzeug in Abhängigkeit von Randbedingungen wie Fahrbahnneigung, Reibwert der Fahrbahn, Windwiderstand und dergleichen mit der sich einstellenden Fahrzeuggeschwindigkeit – der so genannten Kriechgeschwindigkeit – bewegt/angetrieben wird.at Today, powered by an internal combustion engine motor vehicles a so-called creeping speed sets in or becomes a motor vehicle accelerates to a certain creeping speed, if a vehicle, starting from a vehicle standstill or a Vehicle speed is less than creep speed, with engaged gear and not actuated accelerator pedal (Accelerator pedal) is operated. It is about the internal combustion engine generates a certain drive torque at predetermined idle speed over which the vehicle depending on boundary conditions As roadway inclination, friction coefficient of the road, wind resistance and the like with the adjusting vehicle speed - the so creeping speed - moved / driven.

Aus der nicht vor veröffentlichten deutschen Patentanmeldung 10 2006 051 230 ist ein Kraftfahrzeug mit automatisiertem oder automatischem Getriebe bekannt, bei dem über das Fahrpedal ein Kriechbetrieb des Fahrzeugs aktivierbar ist, wobei Gangstufen unterschiedliche Kriechgeschwindigkeiten zugeordnet sind.From the not before published German Patent Application 10 2006 051 230 is a motor vehicle with automatic or automatic transmission is known in which a creep operation of the vehicle is activated via the accelerator pedal, wherein gear ratios are assigned different creep speeds.

Ferner ist aus der DE 102 19 420 A1 ein Kraftfahrzeug mit Kriechfunktion bekannt, bei dem die Kriechfunktion ebenfalls über die Betätigung des Fahrpedals aktivier ist. Eine Deaktivierung der Kriechfunktion kann durch Betätigung des Bremspedals eingeleitet werden. Alternativ zur Deaktivierung der Kriechfunktion über das Bremspedal kann vorgesehen sein, dass Kriechmoment entsprechend der zuvor erfolgten Bremsbetätigung zu reduzieren.Furthermore, from the DE 102 19 420 A1 a motor vehicle with creep function, in which the creep is also activated by the operation of the accelerator pedal. A deactivation of the creep function can be initiated by pressing the brake pedal. As an alternative to deactivating the creeping function via the brake pedal, it is possible to reduce the creep torque corresponding to the previously performed brake actuation.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Steuerung einer Antriebseinheit eines Hybridfahrzeugs anzugeben, wodurch der Kriechbetrieb eines Kraftfahrzeugs im Hinblick auf Fahr- und Bedienkomfort verbessert wird. Insbesondere soll durch die Erfindung ferner das Ausmaß an Energiegewinnung im Rekuperationsbetrieb des Kraftfahrzeugs erhöht werden.Of the Invention is based on the object, a method of control indicate a drive unit of a hybrid vehicle, whereby the creep operation a motor vehicle in terms of driving and ease of use improved becomes. In particular, the invention is intended to further increase the level of energy production be increased in the recuperation of the motor vehicle.

Erfindungsgemäß wird die Aufgabe durch die Gesamtheit der Merkmale der unabhängigen Ansprüche gelöst, während in den Unteransprüchen bevorzugte Weiterbildungen der Erfindung angegeben sind.According to the invention the task by the totality of the characteristics of the independent Claims solved while in the dependent claims preferred developments of the invention are given.

Erfindungsgemäß wird bei einem Hybridfahrzeug (insbesondere einem so genannten Parallelhybrid), bei dem die Brennkraftmaschine und die elektrische Maschine zur Erzeugung von Antriebsmoment auf einen gemeinsamen Antriebsstrang wirken, unterhalb einer vorbestimmten Grenzdrehzahl der Getriebeausgangswelle oder einer hiermit korrelierenden Drehzahl (vorzugsweise eine Drehzahl, die korreliert mit der Leerlaufdrehzahl der Brennkraftmaschine) die Brennkraftmaschine vom Antriebsstrang abgekoppelt. Diese Abkopplung erfolgt z. B. durch das Öffnen/Trennen einer im Antriebsstrang angeordneten Trennkupplung, über die die Brennkraftmaschine unmittelbar an eine Getriebeeinrichtung gekoppelt ist. Ferner wird bei Erreichen der Grenzdrehzahl über die elektrische Maschine in Abhängigkeit von einer vorliegenden Bremsanforderung (insbesondere der Betätigung eines Bremspedals) eine Kriechgeschwindigkeit eingestellt, die auch nach Wegfall der Bremsanforderung (bzw. bei späterer Nichtbetätigung des Bremspedals) beibehalten wird. Auf diese Weise kann das Fahrzeug nach dem Wunsch des Fahrers auf jede beliebige Kriechgeschwindigkeit – auch unterhalb der sich über die Leerlaufdrehzahl der Brennkraftmaschine einstellende Kriechgeschwindigkeit – eingestellt werden. Mit Vorteil ist so bei jedem Bremsvorgang des Fahrzeugs ein Rekuperationsbetrieb bis zum Fahrzeugstillstand (v = 0) möglich. Bei völlig abgekoppelter Brennkraftmaschine kann durch die Verschiebung der Leerlaufdrehzahl nach unten – solange, wie eine Bremsanforderung vorliegt bzw. der Fahrer einen Bremswunsch äußert – eine beliebige Kriechgeschwindigkeit eingestellt werden, mit der das Fahrzeug auch nach Erlöschen der Bremsanforderung bzw. nach loslassen des Bremspedals angetrieben wird. Hierfür wird sich die im Zeitpunkt des Erlöschens der Bremsanforderung eingestellte Drehzahl „gemerkt" (erfasst und abgespeichert) und anschließend die Fahrzeuggeschwindigkeit über die elektrische Maschine auf diese Drehzahl eingeregelt.According to the invention in a hybrid vehicle (in particular a so-called parallel hybrid), in which the internal combustion engine and the electric machine for Generation of drive torque on a common drive train act, below a predetermined limit speed of the transmission output shaft or a speed correlated therewith (preferably a speed, which correlates with the idling speed of the internal combustion engine) disconnected the engine from the drive train. This decoupling takes place for. B. by opening / disconnecting one in the drive train arranged separating clutch, via which the internal combustion engine is coupled directly to a transmission device. Furthermore, will upon reaching the limit speed via the electric machine in response to an existing brake request (In particular the operation of a brake pedal) a creeping speed set, which also after elimination of the brake request (or at later non-actuation of the brake pedal) maintained becomes. In this way, the vehicle can according to the desire of the driver at any crawl speed - even below which is about the idle speed of the internal combustion engine adjusting creep speed - to be set. Advantageously, a recuperation operation is thus with each braking process of the vehicle until vehicle standstill (v = 0) possible. At completely decoupled internal combustion engine can by shifting the Idle speed down - as long as a brake request is present or the driver expresses a braking request - any Creep speed can be adjusted, with which the vehicle too after the brake request has expired or after releasing the brake Brake pedal is driven. This will be in the Time of expiry of the brake request set Speed "noticed" (recorded and stored) and then the vehicle speed via the electric machine adjusted to this speed.

Im umgekehrten Fall, im Fall des Anfahrens bzw. Beschleunigens aus dem Fahrzeugstillstand oder einem Kriechbetrieb unterhalb der Grenzdrehzahl, erfolgt die Ansteuerung der elektrischen Maschine analog zu der Vorgehensweise des Bremsbetriebs unterhalb der Grenzdrehzahl. Hierbei wird ausgehend von einer über die Bremsanforderung eingestellten Kriechgeschwindigkeit (das kann auch der Fahrzeugstillstand sein) in Abhängigkeit von einer auftretenden Beschleunigungsanforderung (insbesondere der Betätigung eines Fahrpedals) die Kriechgeschwindigkeit solange erhöht, bis die Beschleunigungsanforderung weggefallen ist (bzw. das Fahrpedal wieder gelöst wird). Auch nach Wegfall der Beschleunigungsanforderung (bzw. bei späterer Nichtbetätigung bzw. bei Lösen des Fahrpedals) wird die zuletzt eingestellte Kriechgeschwindigkeit beibehalten.in the reverse case, in the case of starting or accelerating off the vehicle standstill or a creep operation below the limit speed, the control of the electric machine is analogous to the Procedure of braking operation below the limit speed. in this connection is based on a set via the brake request Creep speed (this can also be the vehicle standstill) depending on an occurring acceleration request (In particular, the operation of an accelerator pedal) the creep speed increased until the acceleration request has been eliminated is (or the accelerator pedal is released again). Also after Elimination of the acceleration request (or later non-operation or when releasing the accelerator pedal) is the last set Maintain creep speed.

Bei Wegfall der Beschleunigungsanforderung oberhalb der Grenzdrehzahl wird nicht die zuletzt eingestellte Geschwindigkeit beibehalten sondern über die Antriebseinheit ein Betriebszustand analog zur Vorgabe über die Fahrerwunschvorgabeeinrichtung eingestellt. Es wird insbesondere für den Fall, dass die Fahrzeugbremsanforderung erlischt und keine Fahrzeugbeschleunigungsanforderung vorliegt und die Drehzahl oberhalb der Grenzdrehzahl liegt, die Brennkraftmaschine nicht abgekoppelt und die Drehzahl stetig bis zur Leelaufdrehzahl reduziert.at Elimination of the acceleration request above the limit speed will not maintain the last set speed but via the drive unit an operating condition analog set to default via the driver request default device. It is especially in the event that the vehicle braking requirement goes out and there is no vehicle acceleration request, and the speed is above the limit speed, the internal combustion engine not decoupled and the speed steadily up to the Leelaufdrehzahl reduced.

Für den Fall, dass die vorbestimmte Grenzdrehzahl bei andauernder Beschleunigungsanforderung erreicht ist, wird die Brennkraftmaschine in den Antriebsstrang eingekoppelt (Schließen der Trennkupplung) und zur Erzeugung von Antriebsmoment gestartet.For the case that the predetermined limit speed with ongoing acceleration request is reached, the internal combustion engine is in the drive train coupled (closing the clutch) and to generate started from drive torque.

ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES 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 The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • - DE 102006051230 [0003] - DE 102006051230 [0003]
  • - DE 10219420 A1 [0004] - DE 10219420 A1 [0004]

Claims (7)

Verfahren zur Steuerung einer Antriebseinheit eines Hybridfahrzeugs, wobei die Antriebseinheit zur Erzeugung eines ersten Antriebsmoments eine Brennkraftmaschine und zur Erzeugung eines zweiten Antriebsmoments eine elektrische Maschine aufweist, und beide Maschinen über eine Steuereinrichtung, in Abhängigkeit von dem über eine Fahrerwunschvorgabeeinrichtung vorgebbaren Fahrerwunschmoment, steuerbar sind, dadurch gekennzeichnet, dass unterhalb einer vorbestimmten Grenzdrehzahl der Getriebeausgangswelle die Brennkraftmaschine vom Antriebsstrang abgekoppelt wird und über die elektrische Maschine in Abhängigkeit von einer vorliegenden Bremsanforderung eine Kriechgeschwindigkeit eingestellt wird, die auch nach Wegfall der Bremsanforderung beibehalten wird.Method for controlling a drive unit of a hybrid vehicle, wherein the drive unit for generating a first drive torque, an internal combustion engine and for generating a second drive torque comprises an electric machine, and both machines are controllable via a control device, in dependence on the preselected via a driver request input device driver desired torque, characterized characterized in that below a predetermined limit speed of the transmission output shaft, the internal combustion engine is decoupled from the drive train and a creeping speed is set via the electric machine in response to an existing braking request, which is maintained even after elimination of the braking request. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass ausgehend von einer über die Bremsanforderung eingestellten Kriechgeschwindigkeit in Abhängigkeit von einer auftretenden Beschleunigungsanforderung die Kriechgeschwindigkeit solange erhöht wird bis die Beschleunigungsanforderung wegfällt und auch nach Wegfall der Beschleunigungsanforderung diese erhöhte Kriechgeschwindigkeit beibehalten wird.Method according to claim 1, characterized in that that starting from a set on the brake request Creep speed depending on an occurring Acceleration request increases the crawl speed as long until the acceleration request disappears and so does after elimination of the acceleration request this increased Creep speed is maintained. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass bei andauernder Beschleunigungsanforderung, für den Fall, dass die Grenzdrehzahl erreicht wird, die Brennkraftmaschine wieder in den Antriebsstrang eingekoppelt wird.Method according to claim 2, characterized in that that with ongoing acceleration request, for the Case that the limit speed is reached, the internal combustion engine is coupled back into the drive train. Verfahren nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass bei Wegfall der Beschleunigungsanforderung oberhalb der Grenzdrehzahl, nicht die zuletzt eingestellte Geschwindigkeit beibehalten sondern über die Antriebseinheit ein Betriebszustand analog zur Vorgabe über die Fahrerwunschvorgabeeinrichtung eingestellt wird.Method according to claim 2 or 3, characterized if the acceleration request is omitted above the limit speed, not keep the last set speed but over the drive unit an operating condition analogous to the default via the driver request default device is set. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Grenzdrehzahl der Leerlaufdrehzahl der Brennkraftmaschine entspricht.Method according to one of the preceding claims, characterized in that the limit speed of the idle speed the internal combustion engine corresponds. Steuereinheit, geeignet zur Durchführung des Verfahrens nach einem der vorstehenden Ansprüche.Control unit, suitable for carrying the method according to any one of the preceding claims. Hybridfahrzeug, umfassend – eine als Brennkraftmaschine ausgebildete Antriebseinrichtung, – eine als elektrische Maschine ausgebildete und mit der Brennkraftmaschine gekoppelte Antriebseinrichtung, – sowie eine Steuereinheit zur Steuerung bzw. Regelung der beiden Antriebseinrichtungen zur Bildung eines über eine Fahrerwunschvorgabeeinrichtung fahrerwunschabhängigen Gesamt-Antriebsmoments, dadurch gekennzeichnet, dass die Steuereinheit gemäß Anspruch 6 ausgebildet ist.Hybrid vehicle comprising - one as Internal combustion engine trained drive device, - one designed as an electric machine and with the internal combustion engine coupled drive device, - and a control unit for controlling or regulating the two drive devices for Formation of a via a driver request default device driver-dependent total drive torque, thereby characterized in that the control unit according to claim 6 is formed.
DE102007043586.1A 2007-09-13 2007-09-13 Method for controlling a drive unit of a hybrid vehicle Expired - Fee Related DE102007043586B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102007043586.1A DE102007043586B4 (en) 2007-09-13 2007-09-13 Method for controlling a drive unit of a hybrid vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007043586.1A DE102007043586B4 (en) 2007-09-13 2007-09-13 Method for controlling a drive unit of a hybrid vehicle

Publications (2)

Publication Number Publication Date
DE102007043586A1 true DE102007043586A1 (en) 2009-03-26
DE102007043586B4 DE102007043586B4 (en) 2020-09-03

Family

ID=40365470

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102007043586.1A Expired - Fee Related DE102007043586B4 (en) 2007-09-13 2007-09-13 Method for controlling a drive unit of a hybrid vehicle

Country Status (1)

Country Link
DE (1) DE102007043586B4 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3012782A1 (en) * 2013-11-06 2015-05-08 Peugeot Citroen Automobiles Sa STRATEGY FOR CONTROLLING A RAMPING MARKET FUNCTION FOR A HYBRID VEHICLE HAVING A BRAKING MODE WITH ENERGY RECOVERY
WO2016068773A1 (en) * 2014-10-29 2016-05-06 Scania Cv Ab Method and system for decelerating a vehicle
CN110239507A (en) * 2019-05-23 2019-09-17 浙江吉利控股集团有限公司 A kind of automobile energy management method, device and terminal
DE102018128239A1 (en) * 2018-11-12 2020-05-14 Bayerische Motoren Werke Aktiengesellschaft Method and control unit for operating a hybrid drive during a starting maneuver
DE102011084332B4 (en) 2011-05-19 2020-06-18 Mitsubishi Electric Corporation Vehicle drive control system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10219420A1 (en) 2002-05-02 2003-11-13 Zf Sachs Ag Motor vehicle with creep function
DE102006051230A1 (en) 2006-10-31 2008-05-08 Bayerische Motoren Werke Ag Motor vehicle has drive unit for generating motor driving torque, where creep operating mode is activated, depending on definite idle position of vehicle with creep command signal, which produces definite creep driving torque

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10165096B3 (en) * 2000-07-18 2015-08-13 Schaeffler Technologies AG & Co. KG transmission
US6616569B2 (en) * 2001-06-04 2003-09-09 General Motors Corporation Torque control system for a hybrid vehicle with an automatic transmission
DE102005007966A1 (en) * 2005-02-22 2006-10-05 Zf Friedrichshafen Ag Drive train of a motor vehicle and method for operating the drive train
DE102005061398A1 (en) * 2005-12-22 2007-07-05 Robert Bosch Gmbh Motor vehicle operating method, involves regulating vehicle speed by using electrical machine whose torque is affected by number of revolutions or signal derived from machine, and dividing speed regulation into fast and slow portions
DE102006003714A1 (en) * 2006-01-26 2007-08-02 Zf Friedrichshafen Ag Method for regulating electrodynamic drive system of motor vehicle, involves disposing electric machine, which is used as electrodynamic starting element and summing transmission between combustion engine and transmission

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10219420A1 (en) 2002-05-02 2003-11-13 Zf Sachs Ag Motor vehicle with creep function
DE102006051230A1 (en) 2006-10-31 2008-05-08 Bayerische Motoren Werke Ag Motor vehicle has drive unit for generating motor driving torque, where creep operating mode is activated, depending on definite idle position of vehicle with creep command signal, which produces definite creep driving torque

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011084332B4 (en) 2011-05-19 2020-06-18 Mitsubishi Electric Corporation Vehicle drive control system
FR3012782A1 (en) * 2013-11-06 2015-05-08 Peugeot Citroen Automobiles Sa STRATEGY FOR CONTROLLING A RAMPING MARKET FUNCTION FOR A HYBRID VEHICLE HAVING A BRAKING MODE WITH ENERGY RECOVERY
WO2015067867A3 (en) * 2013-11-06 2015-10-01 Peugeot Citroen Automobiles Sa Strategy for controlling a creep function for a hybrid vehicle having a brake mode with energy recovery
WO2016068773A1 (en) * 2014-10-29 2016-05-06 Scania Cv Ab Method and system for decelerating a vehicle
US20170297558A1 (en) * 2014-10-29 2017-10-19 Scania Cv Ab Method and system for decelerating a vehicle
US11007994B2 (en) * 2014-10-29 2021-05-18 Scania Cv Ab Method and system for decelerating a vehicle
DE102018128239A1 (en) * 2018-11-12 2020-05-14 Bayerische Motoren Werke Aktiengesellschaft Method and control unit for operating a hybrid drive during a starting maneuver
CN110239507A (en) * 2019-05-23 2019-09-17 浙江吉利控股集团有限公司 A kind of automobile energy management method, device and terminal

Also Published As

Publication number Publication date
DE102007043586B4 (en) 2020-09-03

Similar Documents

Publication Publication Date Title
DE102008053937B4 (en) Method for vehicle creep torque control
EP2349801B1 (en) Method and device for starting a hybrid vehicle
DE102010003673A1 (en) Method for operating vehicle, involves providing gear recommendation with application of accelerator pedal after free-run operation between gear box and drive motor
DE102011005320A1 (en) Method for operating motor vehicle, involves activating sail mode if the brake pedal operation amount is smaller than the threshold value
DE102008027658A1 (en) Method for starting internal combustion engine of hybrid vehicle, involves starting internal combustion engine from drove operation mode, in which internal combustion engine is deactivated and is decoupled by coupling device
DE102011075199A1 (en) Manually operable coupling arrangement for drive train of motor vehicle, has motor control device which is provided for controlling supporting element
DE102011121309A1 (en) Method for actuating a clutch, manual transmission control system, computer program product, computer program and signal sequence
DE102011085151A1 (en) Method of operating motor car, involves selecting sail mode above minimum speed of sailing mode, and selecting roll mode above maximum speed of sail mode, during non-operation state of speed control unit
DE10040127B4 (en) Method for improving the comfort of a motor vehicle with an automatic transmission
DE102010028331A1 (en) Method for operating an automatic start / stop system in a motor vehicle
DE102007043586B4 (en) Method for controlling a drive unit of a hybrid vehicle
DE102008020842A1 (en) Motor vehicle has control device and unit coupled with control device for switching between two operating modes of drive unit, where control device is coupled with brake pedal
DE102007030489A1 (en) Method and device for controlling a rolling out of a vehicle
DE102009053021A1 (en) creeping
DE102008013410A1 (en) Motor vehicle operating method, involves initiating start process by activating starting device, detecting terminating condition during starting process, and stopping starting process, when terminating condition is satisfied
DE102008002070A1 (en) Start-up procedure control and/or regulation method for motor vehicle by driver, involves increasing coupling torque for preloading drive chain to predetermined value in phase, where coupling torque is adjusted by partial switch
DE102008036166A1 (en) Method for controlling operation of hybrid vehicle, particularly change from electric motor operation to hybrid operation and from hybrid operation to electric motor operation, involves starting internal combustion engine
EP3592588A1 (en) Method for controlling a motor vehicle and motor vehicle
DE102011085395B4 (en) Method for operating a motor vehicle and drive system for a motor vehicle
DE102017223274A1 (en) Method for operating a drive train of a motor vehicle
DE102009046368A1 (en) Method for operating a hybrid vehicle
DE102007047805A1 (en) Method for determining desired starting torque of drive unit, involves determining torque required by driver from linkage of driver pedal position and clutch pedal position information for electrical starting and for mixed startup
DE102007019657A1 (en) Method for operating a drive train
DE102010041409B4 (en) Method of operating a power train
DE102008007995A1 (en) Method for controlling internal-combustion engine, involves monitoring present vehicle operation from motor braking with lowest inlaid gear ratio

Legal Events

Date Code Title Description
OR8 Request for search as to paragraph 43 lit. 1 sentence 1 patent law
R012 Request for examination validly filed

Effective date: 20140620

R016 Response to examination communication
R016 Response to examination communication
R016 Response to examination communication
R018 Grant decision by examination section/examining division
R020 Patent grant now final
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee