ATE217394T1 - Verfahren zum betreiben eines stufenlosen getriebes mit stätig gleitender kupplung - Google Patents

Verfahren zum betreiben eines stufenlosen getriebes mit stätig gleitender kupplung

Info

Publication number
ATE217394T1
ATE217394T1 AT99202190T AT99202190T ATE217394T1 AT E217394 T1 ATE217394 T1 AT E217394T1 AT 99202190 T AT99202190 T AT 99202190T AT 99202190 T AT99202190 T AT 99202190T AT E217394 T1 ATE217394 T1 AT E217394T1
Authority
AT
Austria
Prior art keywords
continuously variable
clamping force
variable transmission
clutch
operating
Prior art date
Application number
AT99202190T
Other languages
English (en)
Inventor
Engbert Spijker
Peter Baeuerle
Original Assignee
Doornes Transmissie Bv
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 Doornes Transmissie Bv filed Critical Doornes Transmissie Bv
Application granted granted Critical
Publication of ATE217394T1 publication Critical patent/ATE217394T1/de

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
    • F16H61/66—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 continuously variable gearings
    • F16H61/662—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 continuously variable gearings with endless flexible members
    • F16H61/66272—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 continuously variable gearings with endless flexible members characterised by means for controlling the torque transmitting capability of the gearing
    • 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
    • B60W10/10—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
    • B60W30/1819—Propulsion control with control means using analogue circuits, relays or mechanical links
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/02—Clutches
    • B60W2510/0241—Clutch slip, i.e. difference between input and output speeds
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/02—Clutches
    • B60W2710/025—Clutch slip, i.e. difference between input and output speeds
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/108—Gear
    • F16D2500/1088—CVT
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/304—Signal inputs from the clutch
    • F16D2500/30402—Clutch friction coefficient
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/304—Signal inputs from the clutch
    • F16D2500/30406—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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/304—Signal inputs from the clutch
    • F16D2500/3041—Signal inputs from the clutch from the input shaft
    • F16D2500/30415—Speed of the input shaft
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/304—Signal inputs from the clutch
    • F16D2500/3042—Signal inputs from the clutch from the output shaft
    • F16D2500/30426—Speed of the output shaft
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/502—Relating the clutch
    • F16D2500/50236—Adaptations of the clutch characteristics, e.g. curve clutch capacity torque - clutch actuator displacement
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/504—Relating the engine
    • F16D2500/5043—Engine fuel consumption
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
    • F16D2500/70422—Clutch parameters
    • F16D2500/70426—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
    • 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
    • F16H61/66—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 continuously variable gearings
    • F16H2061/6604—Special control features generally applicable to continuously variable gearings
    • F16H2061/6618—Protecting CVTs against overload by limiting clutch capacity, e.g. torque fuse
    • 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
    • F16H63/46—Signals to a clutch outside the gearbox

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Transmission Device (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Friction Gearing (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
  • Transmission Devices (AREA)
AT99202190T 1999-07-06 1999-07-06 Verfahren zum betreiben eines stufenlosen getriebes mit stätig gleitender kupplung ATE217394T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99202190A EP1069331B1 (de) 1999-07-06 1999-07-06 Verfahren zum Betreiben eines stufenlosen Getriebes mit stätig gleitender Kupplung

Publications (1)

Publication Number Publication Date
ATE217394T1 true ATE217394T1 (de) 2002-05-15

Family

ID=8240414

Family Applications (1)

Application Number Title Priority Date Filing Date
AT99202190T ATE217394T1 (de) 1999-07-06 1999-07-06 Verfahren zum betreiben eines stufenlosen getriebes mit stätig gleitender kupplung

Country Status (6)

Country Link
US (1) US6412617B1 (de)
EP (1) EP1069331B1 (de)
JP (1) JP4596616B2 (de)
AT (1) ATE217394T1 (de)
DE (1) DE69901441T2 (de)
ES (1) ES2177197T3 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19952351A1 (de) * 1999-10-30 2001-05-23 Zahnradfabrik Friedrichshafen Verfahren und Vorrichtung zum Steuern und Regeln einer Kupplung in einem stufenlosen Automatikgetriebe für ein Kraftfahrzeug
DE10053110A1 (de) * 2000-10-26 2002-05-08 Bosch Gmbh Robert Verfahren zum Betreiben einer Kupplung und Regeleinrichtung zur Durchführung des Verfahrens
DE60204898T2 (de) 2001-08-31 2006-05-11 Torotrak (Development) Ltd., Leyland Stufenloses getriebe und dessen steuerverfahren
EP1411277A1 (de) 2002-10-16 2004-04-21 Van Doorne's Transmissie B.V. Schaltsteuerverfahren für Automatikgetriebe und ein mit einem solchen Verfahren gesteuertes Getriebe
NL1022241C2 (nl) 2002-12-23 2004-06-24 Doornes Transmissie Bv Werkwijze voor het bedienen van een continu variabele transmissie.
NL1022243C2 (nl) 2002-12-23 2004-06-24 Doornes Transmissie Bv Werkwijze voor het bedienen van een continu variabele transmissie.
JP2006511765A (ja) 2002-12-23 2006-04-06 ファン ドールネズ トランスミッシー ビー．ブイ． 無段変速機の操作方法
NL1022242C2 (nl) 2002-12-23 2004-06-24 Doornes Transmissie Bv Werkwijze voor het bedienen van een continu variabele transmissie.
DE602005018977D1 (de) 2005-11-29 2010-03-04 Bosch Gmbh Robert Verfahren zur steuerung einer kupplung in einem miugantriebsstrang
JP4939190B2 (ja) * 2006-11-30 2012-05-23 本田技研工業株式会社 小型車両用パワーユニット
US8560191B2 (en) * 2007-10-26 2013-10-15 GM Global Technology Operations LLC Method and apparatus to control clutch pressures in an electro-mechanical transmission
BRPI0823134A2 (pt) * 2008-10-30 2015-06-16 Volvo Lastvagnar Ab Um dispositivo e um método para ajustamento automaticamente de capacidade de transmissão de torque de uma transmissão de turbo composto
JP5171799B2 (ja) * 2008-12-18 2013-03-27 日産自動車株式会社 ベルト式無段変速機の制御装置
US8403811B2 (en) 2010-04-12 2013-03-26 Ford Global Technologies, Llc Method and system for cabin heating
US8414456B2 (en) 2010-07-09 2013-04-09 Ford Global Technologies, Llc Method for starting an engine
US8864623B2 (en) 2010-07-09 2014-10-21 Ford Global Technologies, Llc Method for controlling a transmission coupled to an engine that may be automatically stopped
US8328687B2 (en) 2010-07-09 2012-12-11 Ford Global Technologies, Llc Method for controlling an engine that may be automatically stopped
US8731789B2 (en) * 2010-09-28 2014-05-20 Ford Global Technologies, Llc Transmission fluid heating via heat exchange with engine cylinder walls
US8997707B2 (en) 2011-02-25 2015-04-07 Joseph Norman Ulrey Vehicle fuel burner
JP6329341B2 (ja) * 2013-05-30 2018-05-23 株式会社Ｓｕｂａｒｕ 車両用制御装置
US10308255B2 (en) 2014-01-16 2019-06-04 Transmission Cvtcorp Inc. Slip control method and arrangement for a driveline including a continuously variable transmission
US9670972B2 (en) * 2014-04-28 2017-06-06 Twin Disc, Inc. Trimmed lock-up clutch
EP3175151A4 (de) 2014-07-30 2018-05-09 Transmission CVT Corp Inc. Hydraulisches schlupfregelverfahren und anordnung für einen antriebsstrang mit einem stufenlos regelbaren getriebe
US10948081B2 (en) * 2017-03-02 2021-03-16 Toyota Motor Engineering & Manufacturing North America, Inc. Downsized CVT oil pump achieved by slip device
CN114941666B (zh) * 2022-04-02 2024-06-18 潍柴动力股份有限公司 离合器控制方法、装置、电子设备和存储介质

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4433594A (en) * 1981-04-24 1984-02-28 Borg-Warner Corporation Variable pulley transmission
JPS59190522A (ja) 1983-04-08 1984-10-29 Toyota Motor Corp 車両用磁粉式電磁クラツチの制御装置
JPH0665895B2 (ja) * 1986-04-14 1994-08-24 新潟コンバーター株式会社 可変速スリッピングクラッチ
JPH0788148B2 (ja) * 1988-11-30 1995-09-27 スズキ株式会社 連続可変変速機のクラッチ圧制御装置
US5062049A (en) * 1989-09-15 1991-10-29 Borg-Warner Automotive, Inc. Control method and apparatus for continuously variable transmissions
JP2769725B2 (ja) * 1989-09-30 1998-06-25 スズキ株式会社 連続可変変速機のクラッチ制御方法
NL9000589A (nl) 1990-03-15 1991-10-01 Doornes Transmissie Bv Continu variabele transmissie.
US5064036A (en) * 1990-05-24 1991-11-12 Borg-Warner Automotive, Inc. Adaptive torsional damping device for a continuously variable transmission
US5006092A (en) * 1990-05-24 1991-04-09 Borg-Warner Automotive, Inc. Continuously variable transmission power train configuration
JP2607741B2 (ja) 1990-07-12 1997-05-07 シャープ株式会社 液晶表示装置
US5314385A (en) * 1992-11-13 1994-05-24 Borg-Warner Automotive, Inc. System for cooling a starting clutch of a continuously variable transmission
DE4324810A1 (de) * 1993-07-23 1995-01-26 Zahnradfabrik Friedrichshafen Regelverfahren für ein stufenloses Umschlingungsgetriebe
JP3458603B2 (ja) * 1996-06-18 2003-10-20 トヨタ自動車株式会社 ベルト式無段変速機付車両の制御装置
JP3445106B2 (ja) * 1997-09-08 2003-09-08 神鋼造機株式会社 シールドカッタ駆動用電動減速機及び電動減速機

Also Published As

Publication number Publication date
ES2177197T3 (es) 2002-12-01
JP4596616B2 (ja) 2010-12-08
JP2001065605A (ja) 2001-03-16
DE69901441T2 (de) 2002-12-12
EP1069331B1 (de) 2002-05-08
EP1069331A1 (de) 2001-01-17
US6412617B1 (en) 2002-07-02
DE69901441D1 (de) 2002-06-13

Similar Documents

Publication Publication Date Title
DE69901441D1 (de) Verfahren zum Betreiben eines stufenlosen Getriebes mit stätig gleitender Kupplung
PL352871A1 (en) Method of controlling a gear-box using a centrifugal clutch and system therefor
BR9907375A (pt) Método, sistema, e meio de armazenagem de instruções, para reduzir tempo de mudança de relação em um sistema de trem de força
FR2838684B1 (fr) Procede, dispositif et leur utilisation pour l'exploitation d'un vehicule automobile
GB2302146B (en) Apparatus and method for regulating a torque transmission system which operates between a driving unit and a transmission
ATE472451T1 (de) Getriebe-steuersystem
FR2847208B1 (fr) Procede et dispositif de commande de l'unite d'entrainement d'un vehicule automobile
EP1669627A3 (de) Vorrichtung und Verfahren zur Steuerung des Einrückens einer Kupplung, und Spreitzsitz-Fahrzeug
DE69301139D1 (de) Steuerungseinrichtung und -verfahren zum Einlegen eines Anfahrganges
FR2828144B1 (fr) Appareil de commande de changement de vitesse d'une transmission automatique de vehicule a moteur
ATE298852T1 (de) Stufenloses getriebe und dessen steuerverfahren
EP0810115A3 (de) Steuerung für ein automatisches Getriebe
GB2319817B (en) Control method for a torque transfer system and torque transfer system for carrying out the control method
GB2305743B (en) Method and apparatus for altering the torque in a drive train of a motor vehicle
GB2314898B (en) Anti-creep control apparatus of automatic transmission
GB9803688D0 (en) Method for controlling a torque transfer system
GB0410550D0 (en) Vehicle control system
WO2000003159A3 (de) Verfahren und vorrichtung zur betätigung einer kraftfahrzeug-kupplungsvorrichtung
BRPI0505719A (pt) método para controlar engate de embreagem centrìfuga usando solicitações de torque do motor
DE502004011615D1 (de) Steuervorrichtung für ein zumindest zeitweise vierradgetriebenes kraftfahrzeug
FR2824883B1 (fr) Procede de commande et/ou de regulation d'un systeme de transmission du couple sur une ligne d'entrainement d'un vehicule
FR2708893A1 (fr) Appareil et procédé de commande pour transmissions continues de véhicules.
DE3878637D1 (de) Stufenlos hydraulisches getriebe mit sperrventil.
DE69907059D1 (de) System zur Regelung der Antriebskraft eines Nutzfahrzeuges
DE60110490D1 (de) System und Verfahren mit Drehmoment-Modulationssteuerung zum Schalten eines Getriebes