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MX2009008172A - Sistema de control de cvt. - Google Patents

Sistema de control de cvt.

Info

Publication number
MX2009008172A
MX2009008172A MX2009008172A MX2009008172A MX2009008172A MX 2009008172 A MX2009008172 A MX 2009008172A MX 2009008172 A MX2009008172 A MX 2009008172A MX 2009008172 A MX2009008172 A MX 2009008172A MX 2009008172 A MX2009008172 A MX 2009008172A
Authority
MX
Mexico
Prior art keywords
clutch
low
regime
control part
ratio
Prior art date
Application number
MX2009008172A
Other languages
English (en)
Inventor
Christopher John Greenwood
Robert Andrew Oliver
Original Assignee
Torotrak Dev 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 Dev Ltd filed Critical Torotrak Dev Ltd
Publication of MX2009008172A publication Critical patent/MX2009008172A/es

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
    • F16H61/664—Friction gearings
    • 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
    • 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
    • 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
    • F16H2037/088—Power-split transmissions with summing differentials, with the input of the CVT connected or connectable to 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
    • 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
    • F16H2061/6609—Control of clutches or brakes in torque split transmissions
    • 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
    • F16H61/6648—Friction gearings controlling of shifting being influenced by a signal derived from the engine and the main coupling

Landscapes

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

Abstract

La invención se refiere a un acoplamiento mecánico simple para controlar una transmisión continuamente variable de regímenes múltiples. La transmisión en cuestión comprende un variador (10) y un arreglo de engranes que incluye un embrague de bajo régimen (CL) y un embrague de alto régimen (CH). El acoplamiento del embrague de bajo régimen coloca la transmisión en el régimen bajo. El acoplamiento del embrague de alto régimen lo coloca en el régimen alto. El sistema de control comprende una parte de control (tal como una palanca) que es movible por el usuario a lo largo de una trayectoria de control desde un extremo de baja proporción hasta un extremo de alta proporción. La posición de la parte de control dicta la proporción del variador y la proporción de la transmisión. El sistema incorpora además un dispositivo de control del embrague de bajo régimen que acopla el embrague de bajo régimen cuando la parte de control está entre el extremo de proporción baja de su trayectoria, y un punto de transición de embrague bajo, y que libera el embrague de bajo régimen cuando la parte de control está entre el punto de transición del embrague bajo y el extremo de alta proporción de su trayectoria. Este incorpora adicionalmente un control de embrague de alto régimen que libera el embrague de alto régimen cuando la parte de control está entre el extremo de baja proporción de su trayectoria y un punto de transición del embrague alto, y el cual acopla el embrague de alto régimen cuando la parte de control está entre el punto de transición del embrague alto y el extremo de alta proporción de su trayectoria. De esta manera, puede ser proporcionado un arreglo mecánico que maneja la proporción de transmisión y los cambios del embrague requeridos después del cambio de régimen.
MX2009008172A 2007-02-09 2008-02-07 Sistema de control de cvt. MX2009008172A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0702490.4A GB0702490D0 (en) 2007-02-09 2007-02-09 CVT control system
PCT/GB2008/050076 WO2008096175A2 (en) 2007-02-09 2008-02-07 Cvt control system

Publications (1)

Publication Number Publication Date
MX2009008172A true MX2009008172A (es) 2009-08-18

Family

ID=37899009

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2009008172A MX2009008172A (es) 2007-02-09 2008-02-07 Sistema de control de cvt.

Country Status (13)

Country Link
US (1) US20100140034A1 (es)
EP (1) EP2109726B1 (es)
JP (1) JP5432725B2 (es)
KR (1) KR101496125B1 (es)
CN (1) CN101606007B (es)
BR (1) BRPI0808166B1 (es)
CA (1) CA2677359A1 (es)
ES (1) ES2391317T3 (es)
GB (1) GB0702490D0 (es)
MX (1) MX2009008172A (es)
RU (1) RU2475669C2 (es)
WO (1) WO2008096175A2 (es)
ZA (1) ZA200905338B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5786367B2 (ja) * 2011-02-25 2015-09-30 日本精工株式会社 変速機能及び回転方向変換機能を備えた駆動装置
GB201214316D0 (en) * 2012-08-10 2012-09-26 Torotrak Dev Ltd Infinitely-variable transmission for a vehicle
JP6922878B2 (ja) * 2018-11-28 2021-08-18 井関農機株式会社 作業車両および作業車両の変速制御方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0214690Y2 (es) * 1985-04-12 1990-04-20
GB8715952D0 (en) * 1987-07-07 1987-08-12 Perry F G D B Transmissions
SU1614961A1 (ru) * 1988-04-21 1990-12-23 Автомобильный завод им.Ленинского комсомола Система управлени вариатором и двигателем транспортного средства
JPH06341518A (ja) * 1993-06-02 1994-12-13 Toyota Motor Corp 車両用自動変速機の変速制御装置
IN189939B (es) * 1993-12-20 2003-05-17 Torotrak Dev Ltd
GB9513141D0 (en) * 1995-06-28 1995-08-30 Greenwood Christopher J Improvements in or relating to continuously-variable-ratio transmissions of the toroidal-race rolling traction type
JPH09272359A (ja) * 1996-04-10 1997-10-21 Mitsubishi Agricult Mach Co Ltd 作業用車輛の変速操作装置
JP3796916B2 (ja) * 1997-08-25 2006-07-12 マツダ株式会社 トロイダル式無段変速機の制御装置
JP3458818B2 (ja) * 2000-03-30 2003-10-20 日産自動車株式会社 変速比無限大無段変速機の制御装置
US6758111B2 (en) * 2001-01-26 2004-07-06 Richard T. Buonauro Continuously variable transmission
JP3838052B2 (ja) * 2001-05-08 2006-10-25 日産自動車株式会社 トロイダル型無段変速機
KR101179284B1 (ko) * 2003-03-27 2012-09-03 토로트랙 (디벨로프먼트) 리미티드 무단 변속기의 제어 방법
JP4370842B2 (ja) * 2003-07-14 2009-11-25 日本精工株式会社 無段変速装置
JP4774191B2 (ja) * 2003-07-31 2011-09-14 株式会社バンダイナムコゲームス 操作レバー装置
DE10338270B4 (de) * 2003-08-15 2005-10-20 Getrag Getriebe Zahnrad Variator und Variatoranordnung
US7326147B2 (en) * 2004-03-09 2008-02-05 Nsk Ltd. Continuously variable transmission apparatus
AU2005294611B2 (en) * 2004-10-05 2011-10-06 Enviolo B.V. Continuously variable transmission
JP4637632B2 (ja) * 2005-03-31 2011-02-23 株式会社エクォス・リサーチ 無段変速機

Also Published As

Publication number Publication date
RU2475669C2 (ru) 2013-02-20
BRPI0808166B1 (pt) 2023-01-24
KR20090110932A (ko) 2009-10-23
US20100140034A1 (en) 2010-06-10
EP2109726B1 (en) 2012-07-11
WO2008096175A2 (en) 2008-08-14
BRPI0808166A2 (pt) 2014-09-23
RU2009133787A (ru) 2011-03-20
EP2109726A2 (en) 2009-10-21
GB0702490D0 (en) 2007-03-21
ES2391317T3 (es) 2012-11-23
CN101606007A (zh) 2009-12-16
CA2677359A1 (en) 2008-08-14
WO2008096175A3 (en) 2008-12-18
JP2010518335A (ja) 2010-05-27
CN101606007B (zh) 2013-07-17
JP5432725B2 (ja) 2014-03-05
KR101496125B1 (ko) 2015-02-26
ZA200905338B (en) 2010-10-27

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