[go: up one dir, main page]

GB2455030A - Continuously variable transmission - Google Patents

Continuously variable transmission Download PDF

Info

Publication number
GB2455030A
GB2455030A GB0904809A GB0904809A GB2455030A GB 2455030 A GB2455030 A GB 2455030A GB 0904809 A GB0904809 A GB 0904809A GB 0904809 A GB0904809 A GB 0904809A GB 2455030 A GB2455030 A GB 2455030A
Authority
GB
United Kingdom
Prior art keywords
variator
torque
transmission
launch device
continuously variable
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.)
Granted
Application number
GB0904809A
Other versions
GB0904809D0 (en
GB2455030B (en
Inventor
Christopher John Greenwood
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Torotrak Development Ltd
Torotrak PLC
Original Assignee
Torotrak Development Ltd
Torotrak PLC
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 Torotrak Development Ltd, Torotrak PLC filed Critical Torotrak Development Ltd
Publication of GB0904809D0 publication Critical patent/GB0904809D0/en
Publication of GB2455030A publication Critical patent/GB2455030A/en
Application granted granted Critical
Publication of GB2455030B publication Critical patent/GB2455030B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • F16H61/664—Friction gearings
    • F16H61/6649—Friction gearings characterised by the 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
    • 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
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18027—Drive off, accelerating from standstill
    • 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
    • F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
    • F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
    • F16H15/04—Gearings providing a continuous range of gear ratios
    • F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
    • F16H15/32—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line
    • F16H15/36—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface
    • F16H15/38—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces
    • 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
    • F16H61/664—Friction 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/02—Clutches
    • B60W2710/027—Clutch torque
    • 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
    • B60W2710/10—Change speed gearings
    • B60W2710/105—Output torque
    • 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
    • F16H2061/661—Conjoint control of CVT and drive clutch
    • 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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/021—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings toothed gearing combined with continuous variable friction gearing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Friction Gearing (AREA)
  • Control Of Transmission Device (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

The invention is concerned with control of a continuously variable vehicle transmission. The transmission in question is to have a variator (10) which is coupled between a rotary transmission input (32) and a rotary transmission output (46), to provide continuous variation in a transmission dive ratio, via a launch device such as a clutch (62; 68). The variator and the launch device are constructed and arranged to exert a required torque, defined by an input signal. In accordance with the invention, the same control signal is used to control both the variator torque and the torque capacity of the launch device. In such an arrangement, vehicle launch (i.e. moving away from rest) can be controlled in a straightforward manner by progressively raising the relevant control signal, preferably a hydraulic pressure signal. Further independent claims are including for applying traction load to races (20, 22) of the variator and for a method setting torque of the launch device (62; 68) higher than torque of the variator (10).
GB0904809A 2006-09-26 2007-09-24 Continuously variable transmission Active GB2455030B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0618929.4A GB0618929D0 (en) 2006-09-26 2006-09-26 Continuously variable transmission
PCT/GB2007/050578 WO2008038043A2 (en) 2006-09-26 2007-09-24 Continuously variable transmission

Publications (3)

Publication Number Publication Date
GB0904809D0 GB0904809D0 (en) 2009-05-06
GB2455030A true GB2455030A (en) 2009-06-03
GB2455030B GB2455030B (en) 2011-04-20

Family

ID=37434678

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0618929.4A Pending GB0618929D0 (en) 2006-09-26 2006-09-26 Continuously variable transmission
GB0904809A Active GB2455030B (en) 2006-09-26 2007-09-24 Continuously variable transmission

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0618929.4A Pending GB0618929D0 (en) 2006-09-26 2006-09-26 Continuously variable transmission

Country Status (6)

Country Link
JP (4) JP2010505074A (en)
KR (2) KR101440848B1 (en)
CN (1) CN101535110B (en)
DE (1) DE112007002280B4 (en)
GB (2) GB0618929D0 (en)
WO (1) WO2008038043A2 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8401752B2 (en) 2009-12-16 2013-03-19 Allison Transmission, Inc. Fail-to-neutral system and method for a toroidal traction drive automatic transmission
US8424373B2 (en) 2009-12-16 2013-04-23 Allison Transmission, Inc. Variator fault detection system
US8578802B2 (en) 2009-12-16 2013-11-12 Allison Transmission, Inc. System and method for multiplexing gear engagement control and providing fault protection in a toroidal traction drive automatic transmission
US8721494B2 (en) 2010-12-15 2014-05-13 Allison Transmission, Inc. Variator multiplex valve scheme for a torroidal traction drive transmision
US8727942B2 (en) 2010-12-15 2014-05-20 AllisonTransmission, Inc. Dual pump regulator system for a motor vehicle transmission
US8744697B2 (en) 2009-12-16 2014-06-03 Allison Transmission, Inc. Variator lockout valve system
US8821340B2 (en) 2009-12-16 2014-09-02 Allison Transmission, Inc. System and method for controlling endload force of a variator
US8840522B2 (en) 2010-12-15 2014-09-23 Allison Transmission, Inc. Variator switching valve scheme for a torroidal traction drive transmision
US8852049B2 (en) 2009-12-16 2014-10-07 Allison Transmission, Inc. Fast valve actuation system for an automatic transmission
US9011290B2 (en) 2012-11-23 2015-04-21 Zf Friedrichshafen Ag Method for operating a vehicle drive train during a starting process
US9228650B2 (en) 2010-08-16 2016-01-05 Allison Transmission, Inc. Gear scheme for infinitely variable transmission

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5071239B2 (en) * 2008-05-16 2012-11-14 トヨタ自動車株式会社 Toroidal-type continuously variable transmission and synchronization method of its power roller
GB2478003B (en) * 2010-02-23 2012-07-25 Torotrak Dev Ltd Variator traction control arrangement
GB201200357D0 (en) 2012-01-10 2012-02-22 Torotrak Dev Ltd Variator
GB201201068D0 (en) 2012-01-23 2012-03-07 Torotrak Dev Ltd Variator
US20150080171A1 (en) * 2012-01-23 2015-03-19 Torotrak (Development) Limited Variator
DE112013000964A5 (en) * 2012-02-14 2014-10-23 Schaeffler Technologies Gmbh & Co. Kg Multi-range CVT
WO2014125047A1 (en) * 2013-02-13 2014-08-21 Torotrak (Development) Ltd Drive arrangement for an engine ancillary such as a supercharger
WO2015079069A1 (en) 2013-11-29 2015-06-04 Torotrak (Development) Ltd Variator
EP2955074B1 (en) 2014-06-13 2020-11-04 Perkins Engines Company Limited A variator-assisted transmission and launch control methods for such a transmission
CN105221734B (en) * 2015-09-09 2018-04-03 梁稚子 Battery-operated motor cycle external rotor electric machine pendulum-type self-adapting automatic gear shift drive assembly
CN105156658B (en) * 2015-09-09 2017-10-24 梁稚子 Battery-operated motor cycle inner rotor motor pendulum-type self-adapting automatic gear shift drive assembly
WO2017218575A1 (en) * 2016-06-13 2017-12-21 Villarreal Joe G Transmission assembly and method
CN109883598B (en) * 2019-04-15 2021-06-04 中车株洲电力机车有限公司 Method for detecting traction force of rail locomotive

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6120413A (en) * 1998-07-24 2000-09-19 Nissan Motor Co., Ltd. Line pressure control device for automatic transmission
US20050043138A1 (en) * 2001-08-31 2005-02-24 Fuller John William Edward Continuously variable transmission and method of operation thereof
WO2005047738A1 (en) * 2003-11-07 2005-05-26 Torotrak (Development) Limited Control of the line pressure in a multi-regime continuously variable transmission

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62171556A (en) * 1986-01-24 1987-07-28 Daihatsu Motor Co Ltd Emergency start controlling method for continuously variable transmission
JPS62233556A (en) * 1986-04-02 1987-10-13 Nippon Seiko Kk Dual-cavity type toroidal continuously variable transmission
JPH0660669B2 (en) * 1986-05-02 1994-08-10 日産自動車株式会社 Toroidal type continuously variable transmission
JPS62283247A (en) * 1986-05-29 1987-12-09 Daihatsu Motor Co Ltd Torque cam device
JP3372285B2 (en) * 1993-04-02 2003-01-27 マツダ株式会社 Toroidal type continuously variable transmission
GB2312258A (en) * 1996-04-19 1997-10-22 Torotrak Dev Ltd CVT control system has regime change clutches controlled independently of variator
US5980421A (en) * 1997-04-22 1999-11-09 Nsk Ltd. Toroidal type continuously variable transmission
JP3632368B2 (en) * 1997-04-23 2005-03-23 日本精工株式会社 Toroidal continuously variable transmission
JP3541764B2 (en) * 1999-04-30 2004-07-14 日産自動車株式会社 Toroidal type continuously variable transmission
JP2002106666A (en) * 2000-10-02 2002-04-10 Toyota Motor Corp Continuously variable transmission
JP2002147555A (en) * 2000-11-16 2002-05-22 Nsk Ltd Toroidal type continuously variable transmission
JP2002372113A (en) * 2001-06-14 2002-12-26 Nsk Ltd Toroidal type continuously variable transmission
JP2004036866A (en) * 2002-07-08 2004-02-05 Ebara Corp Hydraulic cylinder and impact relieving adjustment method
GB0300419D0 (en) * 2003-01-09 2003-02-05 Torotrak Dev Ltd Continuously variable transmission and method of controlling regime change therein
GB0420007D0 (en) 2004-09-09 2004-10-13 Torotrak Dev Ltd A motor vehicle powertrain and a method and apparatus for control thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6120413A (en) * 1998-07-24 2000-09-19 Nissan Motor Co., Ltd. Line pressure control device for automatic transmission
US20050043138A1 (en) * 2001-08-31 2005-02-24 Fuller John William Edward Continuously variable transmission and method of operation thereof
WO2005047738A1 (en) * 2003-11-07 2005-05-26 Torotrak (Development) Limited Control of the line pressure in a multi-regime continuously variable transmission

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8852049B2 (en) 2009-12-16 2014-10-07 Allison Transmission, Inc. Fast valve actuation system for an automatic transmission
US8401752B2 (en) 2009-12-16 2013-03-19 Allison Transmission, Inc. Fail-to-neutral system and method for a toroidal traction drive automatic transmission
US8578802B2 (en) 2009-12-16 2013-11-12 Allison Transmission, Inc. System and method for multiplexing gear engagement control and providing fault protection in a toroidal traction drive automatic transmission
US9267582B2 (en) 2009-12-16 2016-02-23 Allison Transmission, Inc. System and method for multiplexing gear engagement control and providing fault protection in a toroidal traction drive automatic transmission
US10253875B2 (en) 2009-12-16 2019-04-09 Allison Transmission, Inc. System and method for multiplexing gear engagement control and providing fault protection in a toroidal traction drive automatic transmission
US8744697B2 (en) 2009-12-16 2014-06-03 Allison Transmission, Inc. Variator lockout valve system
US9784366B2 (en) 2009-12-16 2017-10-10 Allison Transmission, Inc. Fast valve actuation system for an automatic transmission
US8821340B2 (en) 2009-12-16 2014-09-02 Allison Transmission, Inc. System and method for controlling endload force of a variator
US8424373B2 (en) 2009-12-16 2013-04-23 Allison Transmission, Inc. Variator fault detection system
US9347555B2 (en) 2009-12-16 2016-05-24 Allison Transmission, Inc. Variator lockout valve system
US8770018B2 (en) 2009-12-16 2014-07-08 Allison Transmission, Inc. Variator fault detection system
US9103434B2 (en) 2009-12-16 2015-08-11 Allison Transmission, Inc. Fail-to-neutral system and method for a toroidal traction drive automatic transmission
US9228650B2 (en) 2010-08-16 2016-01-05 Allison Transmission, Inc. Gear scheme for infinitely variable transmission
US10253859B2 (en) 2010-08-16 2019-04-09 Allison Transmission, Inc. Gear scheme for infinitely variable transmission
US9534672B2 (en) 2010-12-15 2017-01-03 Allison Transmission, Inc. Variator switching valve scheme for a torroidal traction drive transmission
US9541191B2 (en) 2010-12-15 2017-01-10 Allison Transmission, Inc. Dual pump regulator system for a motor vehicle transmission
US9562594B2 (en) 2010-12-15 2017-02-07 Allison Transmission, Inc. Variator multiplex valve scheme for a torroidal traction drive transmission
US8840522B2 (en) 2010-12-15 2014-09-23 Allison Transmission, Inc. Variator switching valve scheme for a torroidal traction drive transmision
US8727942B2 (en) 2010-12-15 2014-05-20 AllisonTransmission, Inc. Dual pump regulator system for a motor vehicle transmission
US8721494B2 (en) 2010-12-15 2014-05-13 Allison Transmission, Inc. Variator multiplex valve scheme for a torroidal traction drive transmision
US9011290B2 (en) 2012-11-23 2015-04-21 Zf Friedrichshafen Ag Method for operating a vehicle drive train during a starting process

Also Published As

Publication number Publication date
JP6926379B2 (en) 2021-08-25
KR101440848B1 (en) 2014-11-03
DE112007002280T5 (en) 2009-08-13
WO2008038043A3 (en) 2008-05-15
CN101535110A (en) 2009-09-16
GB0618929D0 (en) 2006-11-08
JP2010505074A (en) 2010-02-18
JP2015007481A (en) 2015-01-15
JP2017062039A (en) 2017-03-30
WO2008038043A2 (en) 2008-04-03
DE112007002280B4 (en) 2019-03-21
JP2018200115A (en) 2018-12-20
CN101535110B (en) 2014-04-09
KR20140063777A (en) 2014-05-27
GB0904809D0 (en) 2009-05-06
KR20090064590A (en) 2009-06-19
GB2455030B (en) 2011-04-20

Similar Documents

Publication Publication Date Title
GB2455030A (en) Continuously variable transmission
GB0805213D0 (en) An electric controller for a continuously variable transmission and a method of control of a continuously variable transmission
WO2007106874A3 (en) Improved wheelchair
ATE298852T1 (en) CONTINUOUSLY VARIABLE TRANSMISSION AND ITS CONTROL METHOD
WO2009045326A3 (en) Cvt control system having variable power source speed
WO2009065055A3 (en) Controller for variable transmission
WO2012036426A3 (en) Epicyclic gear system using two input characteristics, gear module including same, and method for controlling same
JP2011517483A5 (en)
WO2012112028A3 (en) Transmission system, as well as method for changing a transmission ratio
EP2055997A3 (en) Method and apparatus to control operation of a hydraulic pump for an electro-mechanical transmission
DE60206609D1 (en) HYDRAULIC CONTROL SYSTEM FOR A CONTINUOUSLY ADJUSTABLE GEARBOX
DE602009000420D1 (en) Infinitely variable transmission and associated control method
ATE484947T1 (en) ENGINE CONTROL OF A SELF-PROPELLED WORK MACHINE
ATE435794T1 (en) VEHICLE CONTROL SYSTEM AND METHOD
ATE490428T1 (en) CONTINUOUSLY ADJUSTABLE TRANSMISSION AND ASSOCIATED CONTROL METHOD
EP2428711A3 (en) Continuously variable transmission and power on/off determination method
WO2016012855A8 (en) Control apparatus for vehicle
DE502008002519D1 (en) Method for switching a dual-clutch transmission
WO2007019313A3 (en) Variable motion control devices for transmission and other implementations and methods of use thereof
PH12017000057B1 (en) Control apparatus for vehicular drive unit
MX2013008983A (en) Speed change control device and control method for continuously variable transmission.
WO2010007271A3 (en) Control device adapted to the change in the characteristic of a clutch as a function of temperature as applied to a vehicle fitted with a controlled 4x4 system
WO2015151061A3 (en) Control system for vehicle
WO2008039712A3 (en) Power transmission system with continuously variable speed control
WO2007044772A3 (en) System and method for controlling vehicle speed

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20190117 AND 20190123