DE102013204666A1 - Method for performing a gearshift - Google Patents
Method for performing a gearshift Download PDFInfo
- Publication number
- DE102013204666A1 DE102013204666A1 DE102013204666.9A DE102013204666A DE102013204666A1 DE 102013204666 A1 DE102013204666 A1 DE 102013204666A1 DE 102013204666 A DE102013204666 A DE 102013204666A DE 102013204666 A1 DE102013204666 A1 DE 102013204666A1
- Authority
- DE
- Germany
- Prior art keywords
- gearshift
- value
- clutch
- gear shift
- switching work
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000010687 lubricating oil Substances 0.000 claims 2
- 239000000314 lubricant Substances 0.000 description 3
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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
-
- 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
- B60W10/11—Stepped gearings
- B60W10/111—Stepped gearings with separate change-speed gear trains arranged in series
-
- 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
- B60W30/184—Preventing damage resulting from overload or excessive wear of the driveline
- B60W30/186—Preventing damage resulting from overload or excessive wear of the driveline excessive wear or burn out of friction elements, e.g. 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
- 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
- B60W30/19—Improvement of gear change, e.g. by synchronisation or smoothing gear shift
-
- 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
-
- 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
- B60Y2300/184—Preventing damage resulting from overload or excessive wear of the driveline
- B60Y2300/186—Excessive wear or burn out of friction elements, e.g. clutches
-
- 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
- F16H59/68—Inputs being a function of gearing status
- F16H59/72—Inputs being a function of gearing status dependent on oil characteristics, e.g. temperature, viscosity
- F16H2059/725—Sensing or calculating temperature of friction devices, e.g. clutches to prevent overheating of friction linings
-
- 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
- F16H2061/124—Limiting the input power, torque or speed
-
- 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
- F16H2063/508—Signals to an engine or motor for limiting transmission input torque, e.g. to prevent damage of transmission parts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Transmission Device (AREA)
Abstract
Verfahren zur Durchführung einer Gangschaltung in einem Stufengetriebe, beispielsweise für Radlader, wobei bei der Gangschaltung mindestens zwei Kupplungen beteiligt sind und während der Gangschaltung permanent die Schaltarbeit bestimmt und aufsummiert wird, wobei nach Abschluss der Gangschaltung durch Rückkühlung der Kupplung der Wert der aufsummierten Schaltarbeit wieder reduziert wird.Method for performing a gear shift in a multi-speed transmission, for example for wheel loaders, wherein at least two clutches are involved in the gear shift and the shift work is permanently determined and added up during the gear shift, the value of the total shift work being reduced again after the gear shift has been completed by recooling the clutch becomes.
Description
Die Erfindung bezieht sich auf ein Verfahren zur Durchführung einer Gangschaltung nach der im Oberbegriff von Anspruch 1 näher definierten Art. The invention relates to a method for carrying out a gearshift according to the closer defined in the preamble of claim 1.
Gattungsgemäße Verfahren werden bei Stufengetrieben, beispielsweise bei Radlader, durchgeführt, wobei bei diesen Gangschaltungen mehrere Kupplungen gleichzeitig an der Gangschaltung beteiligt sind, indem die Kupplungen in einen schlupfenden Zustand gebracht werden, um die Gangschaltung betriebssicher und komfortabel durchführen zu können. Die dabei entstehenden Reibarbeiten können bei Durchführung von mehreren Gangschaltungen die zulässigen Werte der Kupplungen überschreiten, wodurch eine Schädigung der Kupplung eintritt. Dies kann beispielsweise bei Pendelschaltungen der Fall sein. Generic methods are performed in stepped gears, for example in wheel loader, wherein in these gear shifts several clutches are simultaneously involved in the gear shift by the clutches are brought into a slipping state in order to perform the gear shift safe and comfortable. The resulting friction work can exceed the permissible values of the couplings when performing several gear shifts, causing damage to the clutch occurs. This can for example be the case with pendulum circuits.
Die
Der vorliegenden Erfindung liegt die Aufgabe zugrunde ein Verfahren zur Durchführung einer Gangschaltung zu schaffen, bei welchem die Kupplungen vor unzulässiger Schädigung geschützt sind. The present invention has for its object to provide a method for carrying out a gearshift, in which the clutches are protected against improper damage.
Die Aufgabe wird mit einem auch die kennzeichnenden Merkmale des Hauptanspruchs aufweisenden gattungsgemäßen Verfahren gelöst. The object is achieved with a generic features of the characterizing features of the main claim.
Bei der Gangschaltung sind mindestens zwei Kupplungen, beispielsweise in einem Radladergetriebe, an der Gangschaltung beteiligt. In der Regel sind vier oder fünf Kupplungen gleichzeitig an der Gangschaltung beteiligt. Jeder Kupplung ist ein Startwert einer Schaltarbeit beim Beginn der Gangschaltung zugeordnet. Dieser Startwert kann den Wert Null aufweisen, es besteht aber auch die Möglichkeit, dass der Startwert größer Null ist. Während der Gangschaltung wird zu jeder Kupplung die Schaltarbeit (J/mm/mm) berechnet und aufintegriert. Es besteht auch die Möglichkeit die Schaltarbeiten der einzelnen Kupplungen nach jeder Gangschaltung zu berechnen und aufzuintegrieren. Der Startwert und die Schaltarbeit aus der Gangschaltung ergibt zu jeder Kupplung einen Endwert der Schaltarbeit. Die Schaltarbeit wird vorzugsweise mittels Drehzahlsensoren ermittelt. Ist die Gangschaltung abgeschlossen, so beginnt eine individuelle Rückkühlung jeder Kupplung, wobei diese Rückkühlung abhängig von der Temperatur des Schmiermittels, der Schmiermittelverteilung und der Schmiermittelmenge ist. Diese Rückkühlung wird kontinuierlich vom Endwert der Schaltarbeit subtrahiert, bis entweder eine zuvor definierte Zeitspanne nach Abschluss der Gangschaltung verstrichen ist oder eine erneute Gangschaltung gestartet wird. Im Fall, dass keine erneute Gangschaltung gestartet wird und die zuvor definierte Zeitspanne abgelaufen ist, wird der Wert für die Schaltarbeit auf Null gesetzt. In diesem Fall ist der Startwert beim erneuten Starten einer Gangschaltung Null. Wird die Gangschaltung gestartet, bevor der Wert für die Schaltarbeit den Wert Null erreicht, so nimmt der Startwert den aktuellen Wert der Schaltarbeit beim Start der Gangschaltung an. Bevor die Gangschaltung ausgeführt wird, wird überprüft, ob bei Durchführung einer Standard-Gangschaltung die maximal zulässige Schaltarbeit für die Kupplung noch möglich ist oder ob der maximale Wert der Schaltarbeit durch die Gangschaltung überschritten wird. Wird der Wert überschritten, so wird die Motordrehzahl eines Antriebsmotors oder das Motor-drehmoment des Antriebsmotors oder beides limitiert, wobei der Grad der Limitierung abhängig vom Startwert ist. Es besteht auch die Möglichkeit diese Entscheidung nicht beim Start der Gangschaltung durchzuführen sondern permanent die aktuelle Schaltarbeit zu überprüfen und während der Schaltung beim Überschreiten eines zuvor definierten maximal zulässigen Wertes der Schaltarbeit, die Motorleistung zu beeinflussen. Es besteht auch die Möglichkeit nicht nur die Motorleistung zu beeinflussen sondern die Zeit der Gangschaltung zu verkürzen, welches zwar zu härteren Schaltungen führt, wodurch ein Schaltdruck oder Schaltstoß entsteht, jedoch die Schaltarbeit reduziert wird. Es besteht auch die Möglichkeit die Motorleistung unverändert zu lassen und nur die Schaltzeit der Gangschaltung zu reduzieren. At the gearshift, at least two clutches, for example in a wheel loader, participate in the gearshift. As a rule, four or five clutches are simultaneously involved in the gearshift. Each clutch is assigned a starting value of a shift work at the beginning of the gearshift. This starting value can have the value zero, but there is also the possibility that the starting value is greater than zero. During the gear shift, the switching work (J / mm / mm) is calculated and integrated for each clutch. It is also possible to calculate and integrate the switching work of the individual clutches after each gearshift. The starting value and the switching work from the gear shift results in a final value of the switching work for each clutch. The switching work is preferably determined by means of speed sensors. When the gearshift is completed, an individual recooling of each clutch begins, this recooling is dependent on the temperature of the lubricant, the lubricant distribution and the amount of lubricant. This re-cooling is continuously subtracted from the final value of the switching work until either a previously defined period has elapsed after completion of the gear shift or a new gear shift is started. In the event that no re-gear shift is started and the previously defined time span has elapsed, the value for the shift work is set to zero. In this case, the starting value when restarting a gear shift is zero. If the gear shift is started before the value for the shift work reaches the value zero, the starting value assumes the current value of the shift work at the start of the gear shift. Before the gearshift is executed, it is checked whether the maximum permitted switching work for the clutch is still possible when performing a standard gearshift or whether the maximum value of the switching work is exceeded by the gearshift. If the value is exceeded, the engine speed of a drive motor or the motor torque of the drive motor or both is limited, the degree of limitation depending on the starting value. It is also possible to make this decision not at the start of the gearshift but permanently to check the current work and shift during switching when exceeding a previously defined maximum allowable value of the switching work to affect the engine performance. It is also possible not only to influence the engine power but to shorten the time of the gearshift, which leads to harder circuits, whereby a switching pressure or shift shock arises, but the switching work is reduced. It is also possible to leave the engine power unchanged and only reduce the switching time of the gearshift.
Indem der Startwert der Schaltarbeit nach verstrichener Rückkühlzeit auf Null gesetzt wird, können Fehler in der Berechnung der Schaltarbeit spätestens zu diesem Zeitpunkt wieder rückgesetzt werden. By setting the starting value of the switching work to zero after elapsed recooling time, errors in the calculation of the switching work can be reset at the latest by this time.
Durch das Verfahren zur Durchführung der Gangschaltung wird ein Verfahren geschaffen, mittels welchem jede Gangschaltung durchführbar ist und die Gangschaltung aus Sicherheitsgründen nicht abgebrochen werden muss und zusätzlich die Kupplungen vor Schädigung geschützt werden, wobei jede Kupplung individuell bis zu ihrer maximalen Leistung verwendet werden kann. By the method for performing the gearshift, a method is provided by means of which each gearshift is feasible and the gearshift for safety reasons must not be canceled and in addition the clutches are protected from damage, each clutch can be used individually to its maximum power.
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 102006052858 A1 [0003] DE 102006052858 A1 [0003]
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013204666.9A DE102013204666A1 (en) | 2013-03-18 | 2013-03-18 | Method for performing a gearshift |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013204666.9A DE102013204666A1 (en) | 2013-03-18 | 2013-03-18 | Method for performing a gearshift |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102013204666A1 true DE102013204666A1 (en) | 2014-09-18 |
Family
ID=51418844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102013204666.9A Pending DE102013204666A1 (en) | 2013-03-18 | 2013-03-18 | Method for performing a gearshift |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102013204666A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3061755A1 (en) * | 2017-01-12 | 2018-07-13 | Renault S.A.S | METHOD FOR CONTROLLING A LOCOBOX TYPE GEARBOX |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3334725A1 (en) * | 1983-09-26 | 1985-04-11 | Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover | DEVICE FOR PROTECTING A CLUTCH AGAINST OVERHEATING |
DE3540719A1 (en) * | 1984-12-01 | 1986-06-05 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Device for safeguarding friction clutches against overloading |
DE3505992A1 (en) * | 1985-02-21 | 1986-08-28 | Zahnräderfabrik Renk AG, 8900 Augsburg | Marine propulsion |
DE3601708A1 (en) * | 1986-01-22 | 1987-07-23 | Sachs Systemtechnik Gmbh | ARRANGEMENT FOR MONITORING A FRICTION COUPLING, IN PARTICULAR A MOTOR VEHICLE |
DE4100091A1 (en) * | 1991-01-04 | 1992-07-09 | Fichtel & Sachs Ag | ARRANGEMENT FOR MONITORING A FRICTION CLUTCH |
WO2005057151A1 (en) * | 2003-12-13 | 2005-06-23 | Gkn Driveline International Gmbh | Method for determining the disc temperature of a multi-disc clutch |
DE102006052858A1 (en) | 2006-11-09 | 2008-05-15 | Zf Friedrichshafen Ag | Clutch monitoring method for drive system in vehicle, involves comparing damage with damage threshold, and emitting signal when damage reaches damage threshold, where emitted signal is acoustic or visual signal |
-
2013
- 2013-03-18 DE DE102013204666.9A patent/DE102013204666A1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3334725A1 (en) * | 1983-09-26 | 1985-04-11 | Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover | DEVICE FOR PROTECTING A CLUTCH AGAINST OVERHEATING |
DE3540719A1 (en) * | 1984-12-01 | 1986-06-05 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Device for safeguarding friction clutches against overloading |
DE3505992A1 (en) * | 1985-02-21 | 1986-08-28 | Zahnräderfabrik Renk AG, 8900 Augsburg | Marine propulsion |
DE3601708A1 (en) * | 1986-01-22 | 1987-07-23 | Sachs Systemtechnik Gmbh | ARRANGEMENT FOR MONITORING A FRICTION COUPLING, IN PARTICULAR A MOTOR VEHICLE |
DE4100091A1 (en) * | 1991-01-04 | 1992-07-09 | Fichtel & Sachs Ag | ARRANGEMENT FOR MONITORING A FRICTION CLUTCH |
WO2005057151A1 (en) * | 2003-12-13 | 2005-06-23 | Gkn Driveline International Gmbh | Method for determining the disc temperature of a multi-disc clutch |
DE102006052858A1 (en) | 2006-11-09 | 2008-05-15 | Zf Friedrichshafen Ag | Clutch monitoring method for drive system in vehicle, involves comparing damage with damage threshold, and emitting signal when damage reaches damage threshold, where emitted signal is acoustic or visual signal |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3061755A1 (en) * | 2017-01-12 | 2018-07-13 | Renault S.A.S | METHOD FOR CONTROLLING A LOCOBOX TYPE GEARBOX |
WO2018130758A1 (en) * | 2017-01-12 | 2018-07-19 | Renault S.A.S | Method for controlling a locobox-type transmission |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1948980B1 (en) | Method for controlling, and control device of, an automated, unsynchronized gear-change transmission of a motor vehicle | |
DE102015102001B4 (en) | Vehicle transmission with stall monitoring logic | |
DE102013008741B3 (en) | Hydraulic system for a dual-clutch transmission of a motor vehicle | |
DE102013008740A1 (en) | Method for a hydraulic system for a dual-clutch transmission | |
DE102009002205A1 (en) | Method for operating a transmission with at least one positive-locking switching element | |
DE102013200646A1 (en) | Method for switching transmission of motor vehicle e.g. tractor, involves producing connection between drive and output sides, and guiding load flux between drive side and output side by load switching clutch based on load arising on clutch | |
DE102013204666A1 (en) | Method for performing a gearshift | |
DE102015006609B3 (en) | Method for operating an electrically controllable feed pump in a hydraulic circuit | |
DE102013204667A1 (en) | Method for carrying out a reversing circuit | |
DE102011005529A1 (en) | Method for preventing tooth-on-tooth position during closing of claw switching element of dual clutch transmission in countershaft design, involves determining difference in rotational speeds of sides and phase position of claws | |
DE880855C (en) | Auxiliary drive branched off from the motor shaft in front of the main clutch for engaging gears of a gearbox with overrunning clutches, especially for motor vehicles | |
EP2434184B1 (en) | Method for determining a gear jump for a shift | |
DE102009028567A1 (en) | Method for operating drive train of motor vehicle e.g. tractor, involves monitoring function of starting clutch in drive unit based on measured and/or calculated, drive-lateral and output-lateral speeds of starting clutch | |
DE102013216659A1 (en) | A method for canceling a circuit in an automatic transmission of a motor vehicle, in which at least one positive-locking switching element is involved | |
DE102013219615B4 (en) | METHOD OF CONTROLLING A TRANSMISSION RANGE SELECTOR | |
DE102018214052A1 (en) | Method for controlling a continuously variable transmission | |
DE102012216305B4 (en) | Method and control device for controlling a positive switching element of a transmission | |
DE102014202227A1 (en) | Method for driving a two-speed transmission with electric machine | |
DE102012004202A1 (en) | Method for switching or releasing torque-proof connection in motor vehicle drive train, involves switching switching element of positive jaw clutch coupling from switch position into another switch position | |
DE102016102584B4 (en) | Method for controlling a transmission for a vehicle | |
DE102015216591A1 (en) | Method for setting a switching point | |
WO2018233757A1 (en) | Method for the correct determination of friction energy arising in a clutch as a vehicle fitted with a manual gearbox pulls away | |
AT514995B1 (en) | Method for operating a dual-clutch transmission | |
DE102009027976B4 (en) | Method for operating a motor vehicle transmission | |
DE102014226638B4 (en) | Method for controlling the drive train of a motor vehicle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R012 | Request for examination validly filed | ||
R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R002 | Refusal decision in examination/registration proceedings |