DE102008000209A1 - Method for operating auto transmission motor vehicle, involves determining whether control element is connected to switching element or not - Google Patents
Method for operating auto transmission motor vehicle, involves determining whether control element is connected to switching element or not Download PDFInfo
- Publication number
- DE102008000209A1 DE102008000209A1 DE102008000209A DE102008000209A DE102008000209A1 DE 102008000209 A1 DE102008000209 A1 DE 102008000209A1 DE 102008000209 A DE102008000209 A DE 102008000209A DE 102008000209 A DE102008000209 A DE 102008000209A DE 102008000209 A1 DE102008000209 A1 DE 102008000209A1
- Authority
- DE
- Germany
- Prior art keywords
- gear
- switched
- automatic transmission
- switching elements
- switching element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1208—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures with diagnostic check cycles; Monitoring of failures
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1208—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures with diagnostic check cycles; Monitoring of failures
- F16H2061/1212—Plausibility checks; Counting means for repeated failures
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1232—Bringing the control into a predefined state, e.g. giving priority to particular actuators or gear ratios
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
- F16H2061/126—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is the controller
- F16H2061/1268—Electric parts of the controller, e.g. a defect solenoid, wiring or microprocessor
-
- 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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2064—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes using at least one positive clutch, e.g. dog clutch
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Betreiben eines Automatgetriebes eines Antriebsstrangs eines Kraftfahrzeugs nach dem Oberbegriff des Anspruchs 1.The The invention relates to a method for operating an automatic transmission a drive train of a motor vehicle according to the preamble of Claim 1.
Die Hauptkomponenten eines Antriebsstrangs eines Kraftfahrzeugs sind ein Antriebsaggregat und ein Getriebe. Ein Getriebe wandelt Drehmomente und Drehzahlen und setzt so das Zugkraftangebot des Antriebsaggregats um. Die hier vorliegende Erfindung betrifft ein Verfahren zum Betreiben eines Automatgetriebes. Im Sinne der hier vorliegenden Erfindung sollen unter dem Begriff Automatgetriebe alle Getriebe mit einem automatischen Gangwechsel verstanden werden, die auch als Stufenautomatgetriebe bezeichnet werden.The Main components of a drive train of a motor vehicle are a drive unit and a transmission. A gearbox converts torques and speeds and thus sets the traction power supply of the drive unit around. The present invention relates to a method of operation an automatic transmission. Within the meaning of the present invention Under the term automatic transmissions are meant all transmissions with a automatic gear changes are understood, which also as a stepped automatic transmission be designated.
Aus der Praxis bekannte Automatgetriebe nehmen abhängig von einer von einem Fahrer vorgegebenen Position eines Wählhebels des Automatgetriebes eine der Getriebepositionen P (Parken), N (Neutral), R (Rückwärtsfahrt) oder D (Vorwärtsfahrt) an bzw. ein. In der Getriebeposition D für die Vorwärtsfahrt wird im Automatgetriebe abhängig von einem von einer Getriebesteuerung und/oder einem Fahrer vorgegebenen Sollgang ein Gang mit einem definierten Übersetzungsverhältnis eingelegt.Out practice known automatic transmissions are dependent on a predetermined by a driver position of a selector lever of the automatic transmission one of the gear positions P (Parking), N (Neutral), R (reverse) or D (forward) or a. In gear position D for forward travel in the automatic transmission depends on one of a transmission control and / or a driver predetermined desired gear a gear with a defined gear ratio inserted.
Automatgetriebe verfügen über eine Vielzahl von Schaltelementen, die als Kupplungen sowie Bremsen ausgeführt sein können. Für jede Getriebeposition des Automatgetriebes sowie für jeden in der Getriebeposition D eingelegten Gang sind erste Schaltelemente des Automatgetriebes geschlossen und zweite Schaltelemente des Automatgetriebes geöffnet, wobei die Öffnungsstellung bzw. Schließstellung der Schaltelemente durch definiertes Bestromen von den Schaltelementen zugeordneten Ansteuerelementen bestimmt wird.automatic transmission have a variety of switching elements, which can be designed as clutches and brakes. For each gearbox position of the automatic transmission as well as for each gear engaged in the gear position D are first shifting elements closed the automatic transmission and second switching elements of the automatic transmission, wherein the open position or closed position the switching elements by defined energizing of the switching elements assigned drive elements is determined.
Für jede Getriebeposition des Automatgetriebes und für jeden in der Getriebeposition D eingelegten Gang werden definierte Schaltelemente durch definiertes Bestromen von Ansteuerelementen der Schaltelemente geschaltet, wohingegen die übrigen Schaltelemente nicht geschaltet werden.For every gear position of the automatic transmission and for everyone gear engaged in the gear position D become defined switching elements by defined energizing of control elements of the switching elements switched, whereas the other switching elements not be switched.
Für einen ordnungsgemäßen Betrieb eines Automatgetriebes ist es von entscheidender Bedeutung, dass die vom Automatgetriebe angenommene Getriebeposition der vom Fahrer vorgegebenen Wählhebelposition entspricht, und dass der in der Getriebeposition D eingelegte Gang dem vorgegebenen Sollgang entspricht. Hierzu muss für die Getriebeposition bzw. den Gang eine zulässige Kombination von Schaltelementen geschaltet werden, wohingegen die übrigen Schaltelemente nicht geschaltet werden dürfen. Anderenfalls können sich am Automatgetriebe nicht zulässige Verspannungen oder Blockierungen einstellen, welche die Fahrsicherheit beeinträchtigen.For proper operation of an automatic transmission It is crucial that the automatic transmission assumed gear position of the selector lever position specified by the driver corresponds, and that in the gear position D engaged gear corresponds to the predetermined nominal gear. This must be for the Gear position or gear a permissible combination switched by switching elements, whereas the rest Switching elements must not be switched. Otherwise, can not be allowed on the automatic transmission Set tensions or blockages that affect driving safety.
Aus
der
Hiervon ausgehend liegt der vorliegenden Erfindung das Problem zu Grunde, ein neuartiges Verfahren zum Betreiben eines Automatgetriebes zu schaffen.Of these, Based on the present invention, the problem underlying to provide a novel method of operating an automatic transmission.
Dieses Problem wird durch ein Verfahren gemäß Anspruch 1 gelöst.This Problem is solved by a method according to claim 1 solved.
Erfindungsgemäß wird bei einer eingelegten Getriebepositionen und/oder bei einem eingelegten Gang von jedem Ansteuerelement der Bestromungswert ermittelt, wobei aus dem Bestromungswert jedes Ansteuerelements abgeleitet wird, welches Schaltelement geschaltet und welches Schaltelement nicht geschaltet ist, und wobei überprüft wird, ob die so als geschaltet und nicht geschaltet ermittelten Schaltelemente zu der vorgegebenen Wählhebelposition und/oder zum vorgegebenen Sollgang passen.According to the invention at an engaged gear positions and / or at an engaged gear determined by each drive the Bestromungswert, where derived from the Bestromungswert each control element, which switching element switched and which switching element is not switched, and being checked is determined whether the so switched and not switched Switching elements to the predetermined selector lever position and / or fit the given target gear.
Mit der hier vorliegenden Erfindung wird ein völlig neuartiges Verfahren zur Gewährleistung eines ordnungsgemäßen Betriebs eines Automatgetriebes vorgeschlagen, bei welchem auf Grundlage von Bestromungswerten, die an den Schaltelementen des Automatgetriebes zugeordneten Ansteuerelementen ausgelesen werden, ermittelt wird, welches Schaltelement des Automatgetriebes geschaltet und welches nicht geschaltet wird, um so zu überprüfen, ob die als geschaltet und nicht geschaltet ermittelten Schaltelemente zu der vorgegebenen Wählhebelposition und/oder zum vorgegebenen Sollgang passen. Dann, wenn die geschalteten und nicht geschalteten Schaltelemente zur vorgegebenen Wählhebelposition und zum vorgegebenen Sollgang passen, entspricht die eingelegte Getriebeposition der vorgegebenen Wählhebelposition und der eingelegte Gang dem vorgegebenen Sollgang.With The present invention is a completely new Procedure for ensuring a proper Operation of an automatic transmission proposed in which on basis of current values applied to the switching elements of the automatic transmission assigned control elements are read, is determined which switching element of the automatic transmission is switched and which is not switched, so check if the as switched and not switched determined switching elements the predetermined selector lever position and / or the default Nominal gear. Then, when the switched and non-switched switching elements to the predetermined selector lever position and to the specified Sollgang pass, corresponds to the inserted gear position of predetermined selector lever position and the gear engaged the predetermined nominal gear.
Bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung. Ausführungsbeispiele der Erfindung werden, ohne hierauf beschränkt zu sein, an Hand der Zeichnung näher erläutert. Dabei zeigt:Preferred embodiments of the invention will become apparent from the dependent claims and the description below. Embodiments of the invention are without being limited thereto be explained in detail with reference to the drawing. Showing:
Die Erfindung betrifft ein Verfahren zum Betreiben eines Automatgetriebes eines Antriebsstrangs eines Kraftfahrzeugs.The The invention relates to a method for operating an automatic transmission a drive train of a motor vehicle.
Für
das in
In
jedem Vorwärtsgang sowie im Rückwärtsgang
sind zur Kraftübertragung vom Getriebeeingang
Weiterhin
kann über die Schaltelemente
Die
im Getriebe
Im
Sinne des erfindungsgemäßen Verfahrens wird bei
einer im Automatgetriebe
Dann, wenn auf ein nicht ordnungsgemäß arbeitendes Automatgetriebe geschlossen wird, wird das Automatgetriebe durch Einlegen eines Notgangs in einen sicheren Betriebszustand überführt. Hierzu werden vorzugsweise die Ansteuerelemente aller Schaltelemente nicht bestromt und der Notgang wird hydraulisch eingelegt.Then, if on an improperly working automatic transmission is closed, the automatic transmission by inserting a Emergency gear transferred to a safe operating condition. For this purpose, preferably the control elements of all switching elements not energized and the emergency gear is hydraulically engaged.
Beim
Auslesen und beim Verarbeiten von Bestromungswerten an den Ansteuerelementen
der Schaltelemente wird im Details so vorgegangen, wie dies exemplarisch
So
sind in
Im
Ausführungsbeispiel der
Es liegt demnach im Sinne der hier vorliegenden Erfindung, zur Erkennung einer unzulässigen Kombination von geschalteten Schaltelementen eines Automatgetriebes und damit zur Vermeidung von z. B. Verspannungen und Blockierungen im Automatgetriebe oder eines offenen Automatgetriebes sowie zur Erkennung einer von einer vorgegebenen Wählhebelposition abweichenden Getriebeposition sowie zur Erkennung eines von einem vorgegebenen Sollgangs abweichenden Gang im Automatgetriebe aktuelle Bestromungswerte der Ansteuerelemente für die Schaltelemente des Automatgetriebes einzulesen und hieraus zu ermitteln, ob Schaltelemente geschaltet sind oder nicht.It is therefore within the meaning of the present invention, for detection an inadmissible combination of switched switching elements an automatic transmission and thus to avoid z. B. tension and blockages in the automatic transmission or an open automatic transmission and for detecting a predetermined selector lever position deviating gear position and to detect one of a preset nominal gear deviating gear in the automatic transmission current Bestromungswerte the drive elements for the switching elements read the automatic transmission and to determine from this whether switching elements are switched or not.
Anhand der so als geschaltet und nicht geschaltet ermittelten Schaltelemente kann überprüft werden, ob die als geschaltet und nicht geschaltet ermittelten Schaltelemente zu der vorgegebenen Wählhebelposition und/oder zum vorgegebenen Sollgang passen, nämlich zu der für die vorgegebene Wählherbelposition und/oder den vorgegebenen Sollgang gespeicherten Sollschaltzuständen der Schaltelemente. Treten bei diesem Vergleich Abweichungen auf, so kann das Automatgetriebe sofort in einen sicheren Zustand überführt werden. Es kann demnach überprüft werden, ob die aktuelle Ansteuerung der Schaltelemente zum vorgegebenen Sollgang und zur vorgegebenen Wählhebelposition passt. Weiterhin kann überprüft werden, ob es sich bei einer aktuellen Ansteuerung der Schaltelemente generell um eine zulässige Ansteuerung derselben handelt.Based the so as switched and not switched determined switching elements can be checked if the as switched and not switched switching elements to the given Selector lever position and / or to the specified nominal gear, namely to the for the given Wahlhemebelposition and / or the predetermined desired gear stored desired switching states the switching elements. If differences occur in this comparison, so the automatic transmission can be immediately transferred to a safe state become. It can therefore be checked if the current control of the switching elements to the specified nominal gear and fits the default selector lever position. Furthermore can be checked be, whether it is a current control of the switching elements generally a permissible control of the same acts.
- 11
- Automatgetriebeautomatic transmission
- 22
- Getriebeschematransmission scheme
- 33
- Getrieberadsatztransmission gear
- 44
- Getrieberadsatztransmission gear
- 55
- Getrieberadsatztransmission gear
- 66
- Getrieberadsatztransmission gear
- 77
- Getriebeeingangtransmission input
- 88th
- Getriebeausgangtransmission output
- 99
- Schaltelement Aswitching element A
- 1010
- Schaltelement Bswitching element B
- 1111
- Schaltelement Cswitching element C
- 1212
- Schaltelement Dswitching element D
- 1313
- Schaltelement Eswitching element e
- 1414
- SchaltelementmatrixShift element matrix
- 1515
- KurveCurve
- 1616
- KurveCurve
- 1717
- KurveCurve
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 3843101 A1 [0007] - DE 3843101 A1 [0007]
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008000209A DE102008000209A1 (en) | 2008-02-01 | 2008-02-01 | Method for operating auto transmission motor vehicle, involves determining whether control element is connected to switching element or not |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008000209A DE102008000209A1 (en) | 2008-02-01 | 2008-02-01 | Method for operating auto transmission motor vehicle, involves determining whether control element is connected to switching element or not |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008000209A1 true DE102008000209A1 (en) | 2009-08-06 |
Family
ID=40821935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008000209A Withdrawn DE102008000209A1 (en) | 2008-02-01 | 2008-02-01 | Method for operating auto transmission motor vehicle, involves determining whether control element is connected to switching element or not |
Country Status (1)
Country | Link |
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DE (1) | DE102008000209A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010063027A1 (en) * | 2010-12-14 | 2012-06-14 | Zf Friedrichshafen Ag | A method for operating a transmission device of a vehicle drive train in the presence of a request for a ratio change |
US8989974B2 (en) | 2010-12-14 | 2015-03-24 | Zf Friedrichshafen Ag | Method for the operation of a transmission device in a vehicle drive train, comprising at least one form-fitting shifting element and multiple frictionally engaged shifting elements |
US9086146B2 (en) | 2010-12-14 | 2015-07-21 | Zf Friedrichshafen Ag | Method for the operation of a transmission device in a vehicle drive train |
DE102014223508A1 (en) | 2014-11-18 | 2016-05-19 | Zf Friedrichshafen Ag | Method and control unit for operating an automatic transmission |
DE102015205925A1 (en) | 2015-04-01 | 2016-10-06 | Zf Friedrichshafen Ag | Method and control device for operating an automatic transmission |
DE102015211957A1 (en) | 2015-06-26 | 2016-12-29 | Zf Friedrichshafen Ag | Method for monitoring and plausibility of the current waveforms in the control of the switching elements of a transmission of a motor vehicle during a circuit |
WO2019025489A1 (en) * | 2017-08-04 | 2019-02-07 | Audi Ag | Method for operating a drive train of a motor vehicle, in particular a car |
DE112009002437B4 (en) | 2008-10-10 | 2020-01-23 | Toyota Jidosha Kabushiki Kaisha | Range determiner |
DE102018222089A1 (en) * | 2018-12-18 | 2020-06-18 | Zf Friedrichshafen Ag | Method and control device for operating a drive train of a motor vehicle |
DE112013001948B4 (en) | 2012-05-31 | 2021-09-23 | Aisin Aw Co., Ltd. | Control device for vehicle drive device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3843101A1 (en) | 1987-12-28 | 1989-07-06 | Aisin Aw Co | DEVICE AND METHOD FOR FUSE SAFETY CONTROL FOR ELECTRONICALLY CONTROLLED, AUTOMATIC TRANSMISSION |
DE10039922A1 (en) * | 1999-08-20 | 2001-04-05 | Jatco Transtechnology Ltd | Speed change controller for automatic transmission, judges failure, when detected connection conditions differ from preset conditions and releases command signal to actuator for specific gear stage, during failure |
DE10120899A1 (en) * | 2001-04-27 | 2002-10-31 | Volkswagen Ag | Monitoring and gear selection method for electronic-hydraulic automobile automatic transmission uses data processor with different program planes for safe initiation of gear selection |
DE10231819A1 (en) * | 2002-07-15 | 2004-02-05 | Zf Friedrichshafen Ag | Emergency driving device for a motor vehicle with an automatic transmission |
DE10237245A1 (en) * | 2002-08-13 | 2004-02-26 | Zf Friedrichshafen Ag | Gear monitoring process for an automatic drive in a motor vehicle, using combination of switch elements with a symptom counter for each element |
-
2008
- 2008-02-01 DE DE102008000209A patent/DE102008000209A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3843101A1 (en) | 1987-12-28 | 1989-07-06 | Aisin Aw Co | DEVICE AND METHOD FOR FUSE SAFETY CONTROL FOR ELECTRONICALLY CONTROLLED, AUTOMATIC TRANSMISSION |
DE10039922A1 (en) * | 1999-08-20 | 2001-04-05 | Jatco Transtechnology Ltd | Speed change controller for automatic transmission, judges failure, when detected connection conditions differ from preset conditions and releases command signal to actuator for specific gear stage, during failure |
DE10120899A1 (en) * | 2001-04-27 | 2002-10-31 | Volkswagen Ag | Monitoring and gear selection method for electronic-hydraulic automobile automatic transmission uses data processor with different program planes for safe initiation of gear selection |
DE10231819A1 (en) * | 2002-07-15 | 2004-02-05 | Zf Friedrichshafen Ag | Emergency driving device for a motor vehicle with an automatic transmission |
DE10237245A1 (en) * | 2002-08-13 | 2004-02-26 | Zf Friedrichshafen Ag | Gear monitoring process for an automatic drive in a motor vehicle, using combination of switch elements with a symptom counter for each element |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112009002437B4 (en) | 2008-10-10 | 2020-01-23 | Toyota Jidosha Kabushiki Kaisha | Range determiner |
US8989974B2 (en) | 2010-12-14 | 2015-03-24 | Zf Friedrichshafen Ag | Method for the operation of a transmission device in a vehicle drive train, comprising at least one form-fitting shifting element and multiple frictionally engaged shifting elements |
US9002603B2 (en) | 2010-12-14 | 2015-04-07 | Zf Friedrichshafen Ag | Method for the operation of a transmission device in a vehicle drive train when a request is made to change gears |
US9086146B2 (en) | 2010-12-14 | 2015-07-21 | Zf Friedrichshafen Ag | Method for the operation of a transmission device in a vehicle drive train |
DE102010063027A1 (en) * | 2010-12-14 | 2012-06-14 | Zf Friedrichshafen Ag | A method for operating a transmission device of a vehicle drive train in the presence of a request for a ratio change |
DE112013001948B4 (en) | 2012-05-31 | 2021-09-23 | Aisin Aw Co., Ltd. | Control device for vehicle drive device |
DE102014223508A1 (en) | 2014-11-18 | 2016-05-19 | Zf Friedrichshafen Ag | Method and control unit for operating an automatic transmission |
DE102015205925A1 (en) | 2015-04-01 | 2016-10-06 | Zf Friedrichshafen Ag | Method and control device for operating an automatic transmission |
DE102015205925B4 (en) | 2015-04-01 | 2023-10-19 | Zf Friedrichshafen Ag | Method and control device for operating an automatic transmission |
DE102015211957A1 (en) | 2015-06-26 | 2016-12-29 | Zf Friedrichshafen Ag | Method for monitoring and plausibility of the current waveforms in the control of the switching elements of a transmission of a motor vehicle during a circuit |
CN110945270B (en) * | 2017-08-04 | 2021-07-27 | 奥迪股份公司 | Method for operating a drive train of a motor vehicle, in particular of a motor vehicle |
CN110945270A (en) * | 2017-08-04 | 2020-03-31 | 奥迪股份公司 | Method for operating a drive train of a motor vehicle, in particular of a motor vehicle |
US11345352B2 (en) | 2017-08-04 | 2022-05-31 | Audi Ag | Method for operating a drivetrain of a motor vehicle, in particular a car |
WO2019025489A1 (en) * | 2017-08-04 | 2019-02-07 | Audi Ag | Method for operating a drive train of a motor vehicle, in particular a car |
DE102018222089A1 (en) * | 2018-12-18 | 2020-06-18 | Zf Friedrichshafen Ag | Method and control device for operating a drive train of a motor vehicle |
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