GB0420865D0 - Continuously variable ratio transmission system - Google Patents

Continuously variable ratio transmission system

Info

Publication number
GB0420865D0
GB0420865D0 GB0420865A GB0420865A GB0420865D0 GB 0420865 D0 GB0420865 D0 GB 0420865D0 GB 0420865 A GB0420865 A GB 0420865A GB 0420865 A GB0420865 A GB 0420865A GB 0420865 D0 GB0420865 D0 GB 0420865D0
Authority
GB
United Kingdom
Prior art keywords
transmission system
continuously variable
variable ratio
ratio transmission
continuously
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Withdrawn
Application number
GB0420865A
Other versions
GB2418235A (en
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
Original Assignee
Torotrak Development Ltd
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 filed Critical Torotrak Development Ltd
Priority to GB0420865A priority Critical patent/GB2418235A/en
Publication of GB0420865D0 publication Critical patent/GB0420865D0/en
Priority to PCT/GB2005/003622 priority patent/WO2006032870A1/en
Priority to EP05784363A priority patent/EP1800026A1/en
Publication of GB2418235A publication Critical patent/GB2418235A/en
Withdrawn legal-status Critical Current

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
    • 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
    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
    • F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
    • F16H37/084—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
    • F16H37/086—CVT using two coaxial friction members cooperating with at least one intermediate friction member
    • 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
    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
    • F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
    • F16H37/084—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. 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
    • 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
    • F16H2061/6601—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 arrangements for dividing torque and shifting between different ranges

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
GB0420865A 2004-09-20 2004-09-20 CVT with a compact variator which transmits less than 100% of engine power Withdrawn GB2418235A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0420865A GB2418235A (en) 2004-09-20 2004-09-20 CVT with a compact variator which transmits less than 100% of engine power
PCT/GB2005/003622 WO2006032870A1 (en) 2004-09-20 2005-09-20 Continuously variable ratio transmission system
EP05784363A EP1800026A1 (en) 2004-09-20 2005-09-20 Continuously variable ratio transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0420865A GB2418235A (en) 2004-09-20 2004-09-20 CVT with a compact variator which transmits less than 100% of engine power

Publications (2)

Publication Number Publication Date
GB0420865D0 true GB0420865D0 (en) 2004-10-20
GB2418235A GB2418235A (en) 2006-03-22

Family

ID=33306879

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0420865A Withdrawn GB2418235A (en) 2004-09-20 2004-09-20 CVT with a compact variator which transmits less than 100% of engine power

Country Status (3)

Country Link
EP (1) EP1800026A1 (en)
GB (1) GB2418235A (en)
WO (1) WO2006032870A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4637632B2 (en) * 2005-03-31 2011-02-23 株式会社エクォス・リサーチ Continuously variable transmission
GB0703351D0 (en) 2007-02-21 2007-03-28 Torotrak Dev Ltd Continuously variable transmission
EP2513514A4 (en) 2009-12-16 2013-08-07 Allison Transm Inc System and method for controlling endload force of a variator
CN102713368B (en) 2009-12-16 2016-06-29 艾里逊变速箱公司 Quick valve actuating system for 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
CN105179672B (en) 2009-12-16 2017-07-11 艾里逊变速箱公司 The control loop of converter micro-tensioning system control method and converter
EP3477160B1 (en) 2009-12-16 2021-09-22 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
CA2789103A1 (en) * 2010-03-08 2011-09-15 Transmission Cvtcorp Inc. A transmission arrangement comprising a power mixing mechanism
EP2567123B1 (en) * 2010-05-06 2016-03-23 Volvo Construction Equipment AB A continuously variable transmission and a working machine
US9228650B2 (en) 2010-08-16 2016-01-05 Allison Transmission, Inc. Gear scheme for infinitely variable transmission
EP2655938A4 (en) 2010-12-15 2016-07-27 Allison Transm Inc Variator switching valve scheme for a torroidal traction drive transmission
CA2821956C (en) 2010-12-15 2018-09-11 Allison Transmission, Inc. Variator multiplex valve scheme for a toroidal traction drive transmission
KR20140045302A (en) 2010-12-15 2014-04-16 알리손 트랜스미션, 인크. Dual pump regulator system for a motor vehicle transmission
WO2017178821A2 (en) * 2016-04-12 2017-10-19 Torotrak (Development) Ltd Continuously variable transmission

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2100372B (en) * 1979-06-20 1983-06-02 Nat Res Dev Improvements in or relating to steplesslyvariable ratio transmissions
DE4327435B4 (en) * 1992-07-06 2008-10-16 Volkswagen Ag Gear arrangement for vehicles
JP4062809B2 (en) * 1999-02-03 2008-03-19 日本精工株式会社 Continuously variable transmission
DE10021912A1 (en) * 2000-05-05 2001-11-08 Daimler Chrysler Ag Drive train for motor vehicle has second planet wheel with diameter such that for stepping up of variable speed gear contact point of second planet wheel with driven element corresponds to center of rotation of second planet wheel
DE10040039A1 (en) * 2000-08-11 2002-02-21 Daimler Chrysler Ag Change gear assembly
DE10121042C1 (en) * 2001-04-28 2003-05-08 Daimler Chrysler Ag Change gear arrangement with a toroidal continuously variable transmission and a planetary gear total gear
GB2384835B (en) * 2002-02-01 2006-02-22 Torotrak Dev Ltd Continuously variable transmission system
AU2003219600A1 (en) * 2002-07-12 2004-02-02 Jongwan Lee Wide range continuously variable transmission
JP3921148B2 (en) * 2002-08-07 2007-05-30 ジヤトコ株式会社 Power split type continuously variable transmission

Also Published As

Publication number Publication date
WO2006032870A1 (en) 2006-03-30
GB2418235A (en) 2006-03-22
EP1800026A1 (en) 2007-06-27

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)