DE102009030605B4 - Method for controlling a motor vehicle drive train - Google Patents
Method for controlling a motor vehicle drive train Download PDFInfo
- Publication number
- DE102009030605B4 DE102009030605B4 DE102009030605A DE102009030605A DE102009030605B4 DE 102009030605 B4 DE102009030605 B4 DE 102009030605B4 DE 102009030605 A DE102009030605 A DE 102009030605A DE 102009030605 A DE102009030605 A DE 102009030605A DE 102009030605 B4 DE102009030605 B4 DE 102009030605B4
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- control unit
- creep reduction
- creep
- vehicle
- drive torque
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000009467 reduction Effects 0.000 claims abstract description 41
- 230000005540 biological transmission Effects 0.000 claims abstract description 34
- 230000000750 progressive effect Effects 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 description 12
- 230000002265 prevention Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009849 deactivation Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/20—Preventing gear creeping ; Transmission control during standstill, e.g. hill hold control
-
- 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
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
-
- 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
- B60W30/18054—Propelling the vehicle related to particular drive situations at stand still, e.g. engine in idling state
-
- 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
- B60W2540/00—Input parameters relating to occupants
- B60W2540/10—Accelerator pedal position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/20—Preventing gear creeping ; Transmission control during standstill, e.g. hill hold control
- F16H2061/202—Active creep control for slow driving, e.g. by controlling clutch slip
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2312/00—Driving activities
- F16H2312/02—Driving off
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2312/00—Driving activities
- F16H2312/02—Driving off
- F16H2312/022—Preparing to drive off
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2312/00—Driving activities
- F16H2312/06—Creeping
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Transmission Device (AREA)
Abstract
Erfindungsgemäß wird bei einem Verfahren zur Steuerung eines Kraftfahrzeug-Antriebsstranges bestehend aus einem Antriebsmotor mit einem elektronischen Motorsteuergerät, einem Drehmomentwandler und einem Automatikgetriebe mit einem elektronischen Getriebesteuergerät, in dem eine Funktion zur Kriechverminderung implementiert ist, die Funktion zur Kriechverminderung verboten, wenn das Getriebesteuergerät das Vorliegen einer definierten Bedingung erkennt, die auf den Wunsch des Fahrers nach einem dynamischen Anfahren schließen lässt.According to the invention, in a method for controlling a motor vehicle drive train consisting of a drive motor with an electronic engine control unit, a torque converter and an automatic transmission with an electronic transmission control unit in which a function for creep reduction is implemented, the function for creep reduction is prohibited if the transmission control unit is present recognizes a defined condition that indicates the driver's desire for a dynamic start-up.
Description
Die Erfindung bezieht sich auf ein Verfahren zur Steuerung eines Kraftfahrzeug-Antriebsstranges nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a method for controlling a motor vehicle drive train according to the preamble of
Ein derartiges Verfahren ist beispielsweise aus der
Die Kriechverminderung bzw. Kriechverhinderung wird beispielsweise durch Hochschaltvorgänge ausgehend von einem momentan vorgewählten Gang oder durch Reduzierung des Druckes in der für den momentan vorgewählten Gang zuständigen Kupplung (Anfahrgang) realisiert.The creep reduction or creep prevention is realized, for example, by upshifts starting from a currently preselected gear or by reducing the pressure in the responsible for the currently preselected gear clutch (starting gear).
Auch aus der
Zum weiteren technischen Hintergrund wird auf folgende Patentdokumente hingewiesen:
Es ist Aufgabe der Erfindung, ein Verfahren eingangs genannter Art derart zu verbessern, dass ohne Komforteinbußen ein fahrerwunschbezogenes und reaktionsschnelles Ein- und Ausschalten der Standabkoppelung oder Kriechverminderung ermöglicht wird.It is an object of the invention to improve a method of the type mentioned in such a way that without sacrificing comfort driver-related and responsive switching on and off of Standabkoppelung or creep reduction is possible.
Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind die Gegenstände der abhängigen Patentansprüche.This object is solved by the features of
Erfindungsgemäß wird bei einem Verfahren zur Steuerung eines Kraftfahrzeug-Antriebsstranges bestehend aus einem elektronisch gesteuerten Antriebsmotor, einem Drehmomentwandler und einem Automatikgetriebe mit einem elektronischen Getriebesteuergerät, in dem eine Funktion zur Kriechverminderung implementiert ist, die Funktion zur Kriechverminderung verboten, wenn das Getriebesteuergerät das Vorliegen einer definierten Bedingung erkennt, die auf den Wunsch des Fahrers nach einem dynamischen Anfahren schließen lässt. Anders ausgedrückt, wird die Kriechverminderung aktiviert, wenn das Getriebesteuergerät kein Vorliegen einer derartigen Bedingung erkennt.According to the invention, in a method for controlling a motor vehicle drive train consisting of an electronically controlled drive motor, a torque converter and an automatic transmission with an electronic transmission control unit, in which a creep reduction function is implemented, the creep reduction function is prohibited if the transmission control unit detects the presence of a defined Recognizes condition that suggests the driver's request for a dynamic startup. In other words, the creep reduction is activated when the transmission control unit does not detect the presence of such a condition.
Vorzugsweise wird dann nach einem Aktivieren der Kriechverminderung bei einem Wieder-Ausschalten der Kriechverminderung vom elektronischen Getriebesteuergerät ein gegenüber der üblicherweise dynamischen Anfahrprogression reduzierter Anstieg des Antriebsmoments veranlasst. Üblicherweise wird eine eher dynamische Anfahrprogression abhängig von der Fahrpedalvorgabe des Fahrers im Motorsteuergerät vorgegeben, die jedoch beim Ausschalten der Kriechverminderung, insbesondere der Kriechverhinderung, unkomfortabel wirken kann.Preferably, after the creep reduction is activated when the creep reduction is switched off again, the electronic transmission control unit initiates a reduced increase in the drive torque compared with the usually dynamic starting progression. Usually, a more dynamic starting progression depending on the accelerator pedal specification of the driver is specified in the engine control unit, which, however, can have an uncomfortable effect when the creep reduction, in particular the creep prevention, is switched off.
Das Getriebesteuergerät kann einen reduzierten Anstieg des Antriebsmoments veranlassen, indem es einen maximal zulässigen Antriebsmomentverlauf unterhalb der üblicherweise dynamischen Anfahrprogression an das Motorsteuergerät des Antriebsmotors ausgibt.The transmission control unit may cause a reduced increase in the drive torque by outputting a maximum allowable torque curve below the usually dynamic start-up progression to the engine control unit of the drive motor.
Alternativ oder zusätzlich kann das Getriebesteuergerät einen reduzierten Anstieg des Antriebsmoments dadurch veranlassen, dass es an das Motorsteuergerät ein Signal ausgibt, womit das Motorsteuergerät die Information erhält, ob die Kriechverminderung aktiviert wurde oder nicht. Daraufhin schaltet das Motorsteuergerät während des Anfahrvorganges, also nach Betätigung des Fahrpedals durch den Fahrer, von einem beim Anfahren üblicherweise vorgegebenen Antriebsmomentverlauf (dynamische Anfahrprogression) auf einen weniger progressiven Antriebsmomentverlauf um, wenn die Kriechverminderung zuvor aktiviert war.Alternatively or additionally, the transmission control unit may cause a reduced increase in the drive torque by outputting a signal to the engine control unit, whereby the engine control unit receives the information as to whether the creep reduction has been activated or not. The engine control unit then switches during the Starting operation, ie after actuation of the accelerator pedal by the driver, from a drive torque curve (dynamic starting progression), which is usually specified during startup, to a less progressive drive torque curve if the creep reduction was previously activated.
Eine definierte Bedingung, die auf den Wunsch des Fahrers nach einem dynamischen Anfahren schließen lässt, kann beispielsweise das Aktivieren eines Sport-Programmes im Fahrzeug sein.A defined condition which makes it possible to conclude the driver's request for a dynamic start-up may, for example, be the activation of a sports program in the vehicle.
Alternativ oder zusätzlich kann eine definierte Bedingung, die auf den Wunsch des Fahrers nach einem dynamischen Anfahren schließen lässt, das Nicht-Aktivieren eines CO2-Spar-Programmes im Fahrzeug sein. Ein Taster zum Aktivieren eines derartigen CO2-Spar-Programmes ist beispielsweise in der
Durch diese erfindungsgemäße Steuerung des Antriebsmoments nach einer Kriechverminderung ist ein fahrerwunschorientiertes reaktionsschnelles, aber doch komfortables Anfahren möglich.By this inventive control of the drive torque after creep reduction is a driver-oriented responsive, yet comfortable start possible.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigtIn the drawing, an embodiment of the invention is shown. It shows
In den
Die Brennkraftmaschine
Zum Einlegen eines momentan vorgewählten Ganges wird vom Getriebesteuergerät
Die Funktion einer Kriechverminderung wird erfindungsgemäß verboten, wenn das Getriebesteuergerät
- – das wirtschaftliche Schalt-Programm D und nicht das Sport-Programm S durch den Fahrer ausgewählt ist oder
- – der im Fahrzeug vorhandender CO2-Taster zur Aktivierung eines CO2-Sparprogrammes gedrückt ist.
- - the economic shift program D and not the sports program S is selected by the driver or
- - the CO2 button in the vehicle is pressed to activate a CO2 saving program.
Grundsätzlich wird die Kriechverminderung beispielsweise eingeschaltet, wenn die Fahrzeuggeschwindigkeit v Null ist oder schon wenn der vom Fahrer ausgelöste Bremsdruck p grösser als eine erste vorgegebene Schwelle ist. Die Kriechverminderung wird vorzugsweise ausgeschaltet, wenn der erfasste Bremsdurch p kleiner als eine zweite vorgegebene Schwelle ist. Die zweite vorgegebene Schwelle kann auch gleich der ersten vorgegebenen Schwelle sein. Dadurch wird das Ausschalten der Kriechverminderung bereits während des Lösens der Bremse vorgenommen, so dass bis zur Betätigung des Fahrpedals die Kriechverminderung bereits ausgeschaltet ist und somit ein komfortables aber reaktionsschnelles Anfahren ermöglicht wird. Bei automatischen Feststellbremsfunktionen kann das Ausschalten der Kriechverminderung bei Betätigung des Fahrpedals vorgenommen werden.In principle, the creep reduction is switched on, for example, if the vehicle speed v is zero or even if the brake pressure p triggered by the driver is greater than a first predetermined threshold. The creep reduction is preferably switched off when the detected brake by p is less than a second predetermined threshold. The second predetermined threshold may also be equal to the first predetermined threshold. As a result, the deactivation of the creep reduction is already carried out during release of the brake, so that until the actuation of the accelerator pedal the creep reduction is already switched off and thus a comfortable but responsive startup is made possible. For automatic parking brake functions, the creep reduction can be switched off when the accelerator pedal is actuated.
Zur Optimierung der Verbrauchsreduzierung ist ein vollständiges Öffnen der für den momentan vorgewählten Gang zuständigen Kupplung vorteilhaft, da in diesem Fall keine Momentübertragung zum Getriebeabtrieb erfolgt und für den Motor somit keine zusätzliche Last existiert (Kriechverhinderung). Wird jedoch die Kupplung vollständig geöffnet, muss zu Beginn des Schließvorganges beim Ausschalten der Kriechverhinderung das Kupplungslüftspiel überwunden werden, um dann erst die Kupplungslamellen zum Anliegen zu bringen. Da dieser Vorgang schnell ablaufen muss, um ein reaktionsschnelles Anfahren des Kraftfahrzeuges zu ermöglichen, würde beim Anlegen der Lamellen ein komfortverschlechternder Stoß auftreten. Daher wird vorzugsweise mittels einer Kupplungsdrucksteuerung die für den momentan vorgewählten Gang zuständige Kupplung nur so weit geöffnet, dass das Lüftspiel überwunden bleibt und die Lamellen schleifen (Kriechverminderung). Es soll nur ein minimales Antriebsmoment übertragen werden. In beiden Fällen wird erfindungsgemäß jedoch zum komfortableren Anfahren ein entsprechend reduzierter Anstieg des Antriebsmoments M vom Getriebesteuergerät
Gemäß
Gemäß
Die punktierte Kurve FP stellt jeweils zum Vergleich den vom Fahrer vorgegebenen Fahrerwunsch durch Betätigung des Fahrpedals dar.The punctured curve FP represents in each case for comparison the driver's request given by the driver by pressing the accelerator pedal.
Durch dieses erfindungsgemäße Ausführungsbeispiel wird ein automatisches Getriebe mit einer Kriechverminderung oder Standabkoppelung bei Stillstand des Kraftfahrzeuges geschaffen, das insbesondere ein reaktionsschnelles und komfortables Anfahren nach einer Kriechverminderung ermöglicht.By this embodiment of the invention, an automatic transmission with creep reduction or Standabkoppelung is created at standstill of the motor vehicle, which allows in particular a responsive and comfortable start after creep reduction.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102009030605A DE102009030605B4 (en) | 2009-06-26 | 2009-06-26 | Method for controlling a motor vehicle drive train |
Applications Claiming Priority (1)
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DE102009030605A DE102009030605B4 (en) | 2009-06-26 | 2009-06-26 | Method for controlling a motor vehicle drive train |
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DE102009030605A1 DE102009030605A1 (en) | 2011-01-13 |
DE102009030605B4 true DE102009030605B4 (en) | 2012-12-06 |
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DE102009030605A Active DE102009030605B4 (en) | 2009-06-26 | 2009-06-26 | Method for controlling a motor vehicle drive train |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102011087016B4 (en) | 2011-11-24 | 2023-03-02 | Bayerische Motoren Werke Aktiengesellschaft | Device for controlling a motor vehicle drive train |
DE102014220340B4 (en) * | 2014-10-08 | 2020-09-24 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle and method for controlling a drive torque of a vehicle |
DE102015210666A1 (en) * | 2015-06-11 | 2016-12-15 | Zf Friedrichshafen Ag | Method and control unit for operating a drive train with an automated manual transmission |
DE102015220807B4 (en) | 2015-10-23 | 2023-09-28 | Bayerische Motoren Werke Aktiengesellschaft | Drive control device and method for controlling a motor vehicle drive train |
DE102015220805A1 (en) | 2015-10-23 | 2017-04-27 | Bayerische Motoren Werke Aktiengesellschaft | Drive control device and method for controlling a motor vehicle drive train |
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DE19942446A1 (en) * | 1998-09-07 | 2000-04-20 | Nissan Motor | Driving force control device for motor vehicle, switches primary driving force to target driving force calculated when engine and transmission are operated independently, during transfer to non-operating state |
DE19922694A1 (en) * | 1999-05-18 | 2000-11-23 | Zahnradfabrik Friedrichshafen | Procedure for control of auto gearbox with electronic gearbox control unit with function for stationary decoupling of |
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DE102006051481A1 (en) * | 2005-10-31 | 2007-05-03 | Honda Motor Co., Ltd. | Crawler controlling device for vehicle, has foot brake operating condition determination mechanism for determining actuation state of foot brake |
DE102006015270A1 (en) * | 2006-04-01 | 2007-10-18 | Bayerische Motoren Werke Ag | Carbon dioxide discharge reducing device for motor vehicle, has central logic element e.g. carbon dioxide switch key, by which carbon dioxide discharge-reducing program is arbitrarily switched on and off by driver |
DE102008046846A1 (en) * | 2008-09-08 | 2010-03-11 | Dr.Ing.H.C.F.Porsche Aktiengesellschaft | Internal combustion engine controlling method for drive train of motor vehicle, involves actuating engine for preparation of starting/stopping processes, such that reverse movement is reproached to stabilize number of revolutions of engine |
DE102008046843A1 (en) * | 2008-09-08 | 2010-03-25 | Dr.Ing.H.C.F.Porsche Aktiengesellschaft | Internal combustion engine controlling method for motor vehicle, involves considering speed difference occurring at friction clutches depending on determined reference values for torque produced by internal combustion engine |
-
2009
- 2009-06-26 DE DE102009030605A patent/DE102009030605B4/en active Active
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---|---|---|---|---|
DE4446077C2 (en) * | 1994-12-22 | 2003-10-30 | Bayerische Motoren Werke Ag | Method for controlling an automatic transmission for reducing creep in motor vehicles |
DE69624396T2 (en) * | 1995-03-08 | 2003-06-12 | Eaton Corp | Optional extension of the creep mode of an automatic clutch and automatic transmission equipped with it for motor vehicles |
DE19942446A1 (en) * | 1998-09-07 | 2000-04-20 | Nissan Motor | Driving force control device for motor vehicle, switches primary driving force to target driving force calculated when engine and transmission are operated independently, during transfer to non-operating state |
DE19922694A1 (en) * | 1999-05-18 | 2000-11-23 | Zahnradfabrik Friedrichshafen | Procedure for control of auto gearbox with electronic gearbox control unit with function for stationary decoupling of |
DE10219420A1 (en) * | 2002-05-02 | 2003-11-13 | Zf Sachs Ag | Motor vehicle with creep function |
DE10222665A1 (en) * | 2002-05-22 | 2003-12-11 | Bosch Gmbh Robert | Method for configuring a transmission control for motor vehicles |
DE102006038571A1 (en) * | 2005-09-10 | 2007-03-22 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Method for control of automatic transmission gear of vehicle switched to crawler function, comprises use of correcting factor in determination of engine load momentum |
DE102005046893A1 (en) * | 2005-09-30 | 2007-04-05 | Zf Friedrichshafen Ag | Automated power shift gear e.g. automatic gear, controlling method for use in motor vehicle, involves controlling rate of creep moment by driver through operation of drive adjusting unit in slow driving function |
DE102006051481A1 (en) * | 2005-10-31 | 2007-05-03 | Honda Motor Co., Ltd. | Crawler controlling device for vehicle, has foot brake operating condition determination mechanism for determining actuation state of foot brake |
DE102006015270A1 (en) * | 2006-04-01 | 2007-10-18 | Bayerische Motoren Werke Ag | Carbon dioxide discharge reducing device for motor vehicle, has central logic element e.g. carbon dioxide switch key, by which carbon dioxide discharge-reducing program is arbitrarily switched on and off by driver |
DE102008046846A1 (en) * | 2008-09-08 | 2010-03-11 | Dr.Ing.H.C.F.Porsche Aktiengesellschaft | Internal combustion engine controlling method for drive train of motor vehicle, involves actuating engine for preparation of starting/stopping processes, such that reverse movement is reproached to stabilize number of revolutions of engine |
DE102008046843A1 (en) * | 2008-09-08 | 2010-03-25 | Dr.Ing.H.C.F.Porsche Aktiengesellschaft | Internal combustion engine controlling method for motor vehicle, involves considering speed difference occurring at friction clutches depending on determined reference values for torque produced by internal combustion engine |
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DE102009030605A1 (en) | 2011-01-13 |
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