WO2004033938A1 - Procede pour commander des mouvements de changement de vitesses dans une boite automatique, comportant au moins un etage de reduction supplementaire, d'un vehicule automobile - Google Patents

Procede pour commander des mouvements de changement de vitesses dans une boite automatique, comportant au moins un etage de reduction supplementaire, d'un vehicule automobile Download PDF

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Publication number
WO2004033938A1
WO2004033938A1 PCT/EP2003/010745 EP0310745W WO2004033938A1 WO 2004033938 A1 WO2004033938 A1 WO 2004033938A1 EP 0310745 W EP0310745 W EP 0310745W WO 2004033938 A1 WO2004033938 A1 WO 2004033938A1
Authority
WO
WIPO (PCT)
Prior art keywords
control unit
reduction gear
transmission
switching
automatic
Prior art date
Application number
PCT/EP2003/010745
Other languages
German (de)
English (en)
Inventor
Wolfgang Schreiber
Eberhard Diessner
Original Assignee
Volkswagen Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volkswagen Aktiengesellschaft filed Critical Volkswagen Aktiengesellschaft
Priority to AU2003277915A priority Critical patent/AU2003277915A1/en
Publication of WO2004033938A1 publication Critical patent/WO2004033938A1/fr

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
    • F16H61/70—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 specially adapted for change-speed gearing in group arrangement, i.e. with separate change-speed gear trains arranged in series, e.g. range or overdrive-type gearing arrangements
    • F16H61/702—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 specially adapted for change-speed gearing in group arrangement, i.e. with separate change-speed gear trains arranged in series, e.g. range or overdrive-type gearing arrangements using electric or electrohydraulic control means
    • 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
    • F16H2306/00—Shifting
    • F16H2306/20—Timing of gear shifts
    • 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
    • F16H2306/00—Shifting
    • F16H2306/40—Shifting activities
    • F16H2306/46—Uncoupling of current gear

Definitions

  • the invention relates to a method for controlling shifting movements of an automatic transmission and a reduction gear of a motor vehicle, the reduction gear having at least two gear stages, the shifting of the transmission being implemented in at least two different operating modes, namely the automatic transmission in a first operating mode with the reduction gear inserted first gear stage and in a second mode of operation with the second gear stage inserted in the reduction gear, the shifting processes being realized essentially by determined driving variables and with the help of at least one control unit, a selector lever and an actuating device being provided and the switching of the reduction gear using the can be implemented by the driver manually operated actuator.
  • a method is known by means of which a driver independently switches over in the reduction gear, for example for a shiftable transfer case with additional switchable gear ratios for extreme gradients in the all-wheel area or Off-road vehicle area.
  • the driver in order to switch over the additional gear stages in the reduction gear in vehicles of this type, the driver must first shift the selector lever of the automatic transmission into position “N” in order to initiate the switching process.
  • the driver actuates the switching process in the first place an actuating device which is separate in the passenger compartment and which is in particular in the form of an actuating switch, and it is often also necessary for the motor vehicle to come to a complete standstill in order to implement the switchover.
  • the invention is therefore based on the object of designing and developing the method of the type mentioned at the outset in such a way that the comfort loss described above is eliminated.
  • the object outlined above is now achieved in that the triggering of the manually operable actuating device, which is carried out independently of the position of the selector lever, automatically implements the required switching sequences of the automatic transmission and the reduction gear via the control unit.
  • the manually operated actuating device automatically switches the automatic transmission into its neutral position by means of the control device, the reduction gear being switched over.
  • the driver no longer needs to manually change the position of the selector lever of the automatic transmission.
  • Fig. 1 is a functional diagram in a very simplified representation with the essential components for performing the method according to the invention.
  • the automatic transmission 1 is operated in a first operating mode in the automatic mode, or the circuits of the transmission 1 are also dependent on the position of the selector lever 4 in the positions P, R, N, D, 4,3,2 and essentially depending on the determined driving variables and automatically realized with the help of the control unit 3, namely when a certain first gear stage is engaged in the reduction gear 2.
  • the second operating mode is operated with the other gear stage inserted in the reduction gear 2 and the changeover of the reduction gear 2 is carried out with the aid of an actuation device 5 which can be operated manually by the driver and which is vzw. is implemented as an actuation switch.
  • a total of three control units are provided, namely a transmission control unit 3 for the circuits in the automatic manual transmission 1, a reduction gear control unit 6 for realizing the switching processes in the reduction gear 2, and an engine control unit 9, in particular for controlling the corresponding engine speed of the internal combustion engine 10.
  • a transmission control unit 3 for the circuits in the automatic manual transmission 1
  • a reduction gear control unit 6 for realizing the switching processes in the reduction gear 2
  • an engine control unit 9 in particular for controlling the corresponding engine speed of the internal combustion engine 10.
  • all of these control units 3, 6 and 9 are connected to one another via corresponding signal lines, not specified, so that corresponding signal flows are exchanged between control units 3, 6 and 9.
  • control device which essentially has the components described here, that is to say a single control device is provided which as a first component is a type of transmission control device, as a second component a type of transmission transmission control device and as a third component has a type of engine control unit.
  • the control units are implemented on an electronic basis and also have corresponding microprocessors.
  • characteristic diagrams for realizing the corresponding speeds or for realizing the corresponding switching processes as a function of certain determined driving variables can also be stored within the corresponding control devices.
  • the reduction gear control device 6 regardless of the position of the selector lever 4, triggers the manually operated actuating device (5) to automatically switch the automatic transmission 1 and the reduction gear 2 so that the other gear stage is engaged in the reduction gear 2 can.
  • the reduction gear 2 is integrated here, for example, in a transfer case 7 and is arranged between the automatic transmission 1 and a distribution differential 8.
  • the reduction gear control unit 6 is linked to the transmission control unit 3 of the automatic transmission 1 and at the same time to the engine control unit 9 of the internal combustion engine 10. At the same time, the engine control unit 9 is connected to the accelerator pedal 11, in particular the accelerator pedal, in terms of circuitry.
  • a signal is sent to the reduction gear control unit 6. sent electronically and / or electrically. Mechanical or hydraulic signal transmission is also conceivable.
  • This triggered signal from the reduction gear control unit 6 is in turn passed on to the transmission control unit 3 of the automatic transmission 1 and to the engine control unit 9 of the internal combustion engine 10.
  • the engine control unit 9 regulates the power requirement of the internal combustion engine 10 and suppresses the control via the accelerator pedal 11.
  • the transmission control unit 3 initiates the interruption in traction of the automatic transmission 1. After execution of the interruption of the tractive force and suppression of the power request, feedback from the engine control unit 9 and the transmission control unit 3 is sent to the reduction gear control unit 6.
  • the reduction gearbox control unit 6 initiates the changeover of the reduction gearbox 2 after feedback from the transmission control unit 3 and the engine control unit 9.
  • the reduction gear control unit 6 sends a signal after feedback of the changeover of the reduction gear 2 to the transmission control unit 3 and to the engine control unit 9.
  • the transmission control unit 3 of the automatic transmission 1 cancels the interruption in traction in the transmission 1.
  • the engine control unit 9 of the internal combustion engine 10 cancels the suppression of a power request after feedback of the changeover of the reduction gear 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

L'invention concerne un procédé pour commander des mouvements de changement de vitesse d'une boîte automatique (1) et d'un démultiplicateur (2) d'un véhicule automobile. Ledit démultiplicateur (2) présente au moins deux rapports. Les changements de vitesses de la boîte (1) sont réalisés selon au moins deux modes de fonctionnement différents: dans un premier mode de fonctionnement, la boîte de vitesse automatique (1) fonctionne avec un premier rapport engagé dans le démultiplicateur (2), et, dans un deuxième mode de fonctionnement, avec un deuxième rapport engagé dans le démultiplicateur (2). Les séquences de changement de vitesses sont réalisées essentiellement en fonction de grandeurs de conduite déterminées et au moyen d'au moins un appareil de commande (3, 6). Un levier sélecteur (4) et un dispositif d'actionnement (5) sont prévus. Le changement de rapports du démultiplicateur (2) peut être réalisé au moyen du dispositif d'actionnement (5) qui peut être commandé manuellement par le conducteur. On obtient ainsi une amélioration du confort pour le conducteur dans la mesure où les séquences de changement de vitesses nécessaires de la boîte automatique (1) et du démultiplicateur (2) sont réalisées automatiquement par l'intermédiaire de l'appareil de commande (3, 6) par déclenchement du dispositif d'actionnement (5) pouvant être commandé manuellement, ledit déclenchement étant effectué indépendamment de la position du levier sélecteur (4).
PCT/EP2003/010745 2002-10-02 2003-09-26 Procede pour commander des mouvements de changement de vitesses dans une boite automatique, comportant au moins un etage de reduction supplementaire, d'un vehicule automobile WO2004033938A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003277915A AU2003277915A1 (en) 2002-10-02 2003-09-26 Method for controlling shift gears movements in an automatic car gearbox unit which comprises at least one reducing stage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10246301.8 2002-10-02
DE2002146301 DE10246301A1 (de) 2002-10-02 2002-10-02 Verfahren zur Steuerung von Schaltbewegungen eines automatischen Schaltgetriebes mit mindestens einer zusätzlichen Untersetzungsstufe eines Kraftfahrzeuges

Publications (1)

Publication Number Publication Date
WO2004033938A1 true WO2004033938A1 (fr) 2004-04-22

Family

ID=32010206

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/010745 WO2004033938A1 (fr) 2002-10-02 2003-09-26 Procede pour commander des mouvements de changement de vitesses dans une boite automatique, comportant au moins un etage de reduction supplementaire, d'un vehicule automobile

Country Status (3)

Country Link
AU (1) AU2003277915A1 (fr)
DE (1) DE10246301A1 (fr)
WO (1) WO2004033938A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8694217B2 (en) 2010-10-05 2014-04-08 Toyota Motor Engineering & Manufacturing North America, Inc. Method and system for adjusting a gear map

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008042043A1 (de) * 2008-09-12 2010-03-18 Zf Friedrichshafen Ag Verfahren und Anordnung zum Steuern und/oder Regeln eines Hauptgetriebes eines Fahrzeuges
DE102012023969A1 (de) * 2012-12-07 2014-06-12 Volkswagen Aktiengesellschaft Verfahren zur Steuerung eines Untersetzungsgetriebes eines Kraftfahrzeuges

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2304835A (en) * 1995-09-07 1997-03-26 Rover Group Control of gearshifting in an automatic transmission in series with a manual range gearbox

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6141067A (ja) * 1984-08-02 1986-02-27 Aisin Warner Ltd 車両用自動変速機

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2304835A (en) * 1995-09-07 1997-03-26 Rover Group Control of gearshifting in an automatic transmission in series with a manual range gearbox

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8694217B2 (en) 2010-10-05 2014-04-08 Toyota Motor Engineering & Manufacturing North America, Inc. Method and system for adjusting a gear map

Also Published As

Publication number Publication date
AU2003277915A1 (en) 2004-05-04
DE10246301A1 (de) 2004-04-15

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