DE102012211948A1 - Method for controlling automatic transmission in motor vehicles, involves outputting request command for opening or leaving open clutch of current reference-gear by electronic engine control unit for controlling internal combustion engine - Google Patents
Method for controlling automatic transmission in motor vehicles, involves outputting request command for opening or leaving open clutch of current reference-gear by electronic engine control unit for controlling internal combustion engine Download PDFInfo
- Publication number
- DE102012211948A1 DE102012211948A1 DE201210211948 DE102012211948A DE102012211948A1 DE 102012211948 A1 DE102012211948 A1 DE 102012211948A1 DE 201210211948 DE201210211948 DE 201210211948 DE 102012211948 A DE102012211948 A DE 102012211948A DE 102012211948 A1 DE102012211948 A1 DE 102012211948A1
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- DE
- Germany
- Prior art keywords
- control unit
- internal combustion
- combustion engine
- gear
- controlling
- 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.)
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Classifications
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- 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
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- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/50—Signals to an engine or motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2300/00—Purposes or special features of road vehicle drive control systems
- B60Y2300/18—Propelling the vehicle
- B60Y2300/192—Power-up or power-down of the driveline, e.g. start up of a cold engine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/70—Gearings
- B60Y2400/76—Automatic gearshift to neutral
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- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/36—Inputs being a function of speed
- F16H59/44—Inputs being a function of speed dependent on machine speed of the machine, e.g. the vehicle
- F16H2059/446—Detecting vehicle stop, i.e. the vehicle is at stand still, e.g. for engaging parking lock
-
- 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
- F16H2061/0015—Transmission control for optimising fuel consumptions
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- 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
- F16H2061/207—Preventing gear creeping ; Transmission control during standstill, e.g. hill hold control by neutral control
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/50—Signals to an engine or motor
- F16H2063/504—Signals to an engine or motor for bringing engine into special condition by transmission control, e.g. by changing torque converter characteristic to modify engine set point to higher engine speed for better acceleration performance
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- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
- F16H59/54—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on signals from the brakes, e.g. parking brakes
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- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/74—Inputs being a function of engine parameters
- F16H59/78—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zur Steuerung eines Automatikgetriebes in Kraftfahrzeugen nach dem Oberbegriff der unabhängigen Patentansprüche.The invention relates to a method for controlling an automatic transmission in motor vehicles according to the preamble of the independent claims.
Beispielsweise aus der auf die Anmelderin zurückgehenden
Eine Kriechverminderung bzw. Kriechverhinderung wird üblicherweise eingeschaltet, wenn aufgrund mindestens eines Fahrzeugparameters, z. B. bei Betätigung des Fahrzeug-Bremssystems während eines Leerlaufzustands der Verbrennungsmotor bei einem im wesentlichen angehaltenen Fahrzeug, der Wunsch des Fahrers zum Stillstand des Kraftfahrzeuges erkannt wird. Üblicherweise wird die Betätigung des Fahrzeug-Bremssystems über einen Schalter am Bremspedal, vorzugsweise den Bremslichtschalter, erkannt.A creep reduction or creep prevention is usually turned on, if due to at least one vehicle parameter, eg. B. upon actuation of the vehicle braking system during an idle state of the internal combustion engine at a substantially stopped vehicle, the desire of the driver is detected to a standstill of the motor vehicle. Usually, the operation of the vehicle brake system is detected by a switch on the brake pedal, preferably the brake light switch.
Die Kriechverminderung bzw. Kriechverhinderung wird beispielsweise durch Hochschaltvorgänge ausgehend von einem momentan vorgewählten Gang oder durch Reduzierung des Druckes in einer/der für den momentan vorgewählten Gang zuständigen Kupplung realisiert.Creep reduction or creep prevention is realized, for example, by upshifts starting from a currently preselected gear or by reducing the pressure in one of the responsible for the currently selected gear clutch.
Grundsätzlich wird durch die Kriechverminderung eine Reduzierung des Kraftstoffverbrauchs erreicht.Basically, a reduction in fuel consumption is achieved by the creep reduction.
Es ist Aufgabe der Erfindung, ein Verfahren eingangs genannter Art derart zu verbessern, dass die Reduzierung des Kraftstoffverbrauchs weiter erhöht wird.It is an object of the invention to improve a method of the type mentioned in such a way that the reduction of fuel consumption is further increased.
Diese Aufgabe wird durch die Merkmale der unabhängigen Patentansprüche gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind die Gegenstände der abhängigen Patentansprüche.This object is solved by the features of the independent claims. Advantageous embodiments of the invention are the subject matters of the dependent claims.
Erfindungsgemäß wird zur Optimierung der Verbrauchsreduzierung, insbesondere bei einem Kaltstart des Verbrennungsmotors, getriebeseitig ein vollständiges Offenlassen der/mindestens einer für den aktuellen Soll-Gang zuständigen Kupplung vorgenommen, wenn und solange eine Fahrzeugbremse aktiviert ist und dabei kein Fahrerwunschmoment vorliegt.According to the invention, to optimize the consumption reduction, in particular in a cold start of the internal combustion engine, a complete release of at least one responsible for the current target gear clutch is made when and as long as a vehicle brake is activated and there is no driver's desired torque.
Vorzugsweise wird währenddessen motorseitig ein beschleunigtes Heizen des Katalysators vorgenommen.Preferably, an accelerated heating of the catalyst is carried out while the engine side.
Bei offener Kupplung erfolgt keine Momentenübertragung vom Verbrennungsmotor zum Getriebe und für den Verbrennungsmotor existiert keine zusätzliche Last.When the clutch is open, there is no torque transmission from the engine to the transmission and there is no additional load for the internal combustion engine.
Durch die Erfindung wird sowohl kurzfristig insbesondere durch die vollständige Unterbrechung der Momentenübertragung als auch langfristig durch einen schnell aufgeheizten Katalysator eine Kraftstoffeinsparung sowie eine Emissionsreduzierung erreicht.As a result of the invention, fuel economy and emission reduction are achieved both in the short term, in particular by the complete interruption of the torque transmission and, in the long term, by means of a rapidly heated catalyst.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt.In the drawing, an embodiment of the invention is shown.
Es zeigt schematischIt shows schematically
In
Zum Einlegen eines aktuellen Soll-Ganges werden alle diesem Gang zugeordneten Kupplungen (z. B. auch
Im Abgasstrang des Verbrennungsmotors
Der Verbrennungsmotor
Ergänzend wird angemerkt, dass die Getriebesteuereinheit
Das erfindungsgemäße Ausführungsbeispiel gemäß
Vorzugsweise wird der Anforderungsbefehlt S_csn von der Getriebesteuereinheit
Somit können zwei Maßnahmen zur Reduzierung des Kraftstoffverbrauchs sowohl motorseitig als auch getriebeseitig gleichzeitig ausgeführt werden.Thus, two measures for reducing fuel consumption can be carried out both on the engine side and on the transmission side at the same time.
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of 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.
Zitierte PatentliteraturCited patent literature
- DE 4446077 A1 [0002] DE 4446077 A1 [0002]
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012211948.5A DE102012211948B4 (en) | 2012-07-09 | 2012-07-09 | Method for controlling an automatic transmission in motor vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102012211948.5A DE102012211948B4 (en) | 2012-07-09 | 2012-07-09 | Method for controlling an automatic transmission in motor vehicles |
Publications (2)
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DE102012211948A1 true DE102012211948A1 (en) | 2014-01-30 |
DE102012211948B4 DE102012211948B4 (en) | 2021-05-20 |
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DE102012211948.5A Active DE102012211948B4 (en) | 2012-07-09 | 2012-07-09 | Method for controlling an automatic transmission in motor vehicles |
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Cited By (1)
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 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4446077A1 (en) | 1994-12-22 | 1996-06-27 | Bayerische Motoren Werke Ag | Automobile automatic transmission control system with creep prevention |
EP1297991A2 (en) * | 2001-09-28 | 2003-04-02 | Siemens Aktiengesellschaft | Control method and system for a vehicle drive train |
DE69922221T2 (en) * | 1998-09-14 | 2006-03-02 | Paice Llc | HYBRID VEHICLE |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4172345B2 (en) * | 2003-07-15 | 2008-10-29 | トヨタ自動車株式会社 | Vehicle control device |
JP4434200B2 (en) * | 2006-12-27 | 2010-03-17 | トヨタ自動車株式会社 | Vehicle control device |
-
2012
- 2012-07-09 DE DE102012211948.5A patent/DE102012211948B4/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4446077A1 (en) | 1994-12-22 | 1996-06-27 | Bayerische Motoren Werke Ag | Automobile automatic transmission control system with creep prevention |
DE69922221T2 (en) * | 1998-09-14 | 2006-03-02 | Paice Llc | HYBRID VEHICLE |
EP1297991A2 (en) * | 2001-09-28 | 2003-04-02 | Siemens Aktiengesellschaft | Control method and system for a vehicle drive train |
Non-Patent Citations (1)
Title |
---|
Georg Hepke: Direkte Nutzung von Abgasenthalphi zur Effizienssteigerung von Kraftfahrzeugen. Doktorarbeit. --- : ---, 2010. 1-102. - ISBN keine * |
Cited By (1)
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 |
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Publication number | Publication date |
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DE102012211948B4 (en) | 2021-05-20 |
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