BRPI0412817A - sistema de controle de variador hidráulico - Google Patents

sistema de controle de variador hidráulico

Info

Publication number
BRPI0412817A
BRPI0412817A BRPI0412817-6A BRPI0412817A BRPI0412817A BR PI0412817 A BRPI0412817 A BR PI0412817A BR PI0412817 A BRPI0412817 A BR PI0412817A BR PI0412817 A BRPI0412817 A BR PI0412817A
Authority
BR
Brazil
Prior art keywords
traction
pressure
reaction
rollers
races
Prior art date
Application number
BRPI0412817-6A
Other languages
English (en)
Inventor
John Fuller
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 BRPI0412817A publication Critical patent/BRPI0412817A/pt

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
    • 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
    • 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
    • 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)
  • Friction Gearing (AREA)
  • Control Of Transmission Device (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Valve Device For Special Equipments (AREA)
  • Transmissions By Endless Flexible Members (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
  • Arc Welding In General (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

"SISTEMA DE CONTROLE DE VARIADOR HIDRáULICO". Em um dispositivo de relação continuamente variável ('variador') do tipo tendo calhas (12, 14, 26, 102), entre as quais o acionamento é transferido por rolos (28), que são deslocáveis de acordo com mudanças na relação do variador, é necessário aplicar uma carga de tração impelindo os rolos e calhas para engate. Cada rolo é também submetido a uma força de reação transversal por um acionador de rolo por reação hidráulica (32) recebendo uma pressão de reação controlada por i. Deseja-se criar uma relação entre força de tração e reação, e também propiciar o ajuste dessa relação. Na presente invenção, isto é alcançado de forma hidráulica. Uma pressão de tração relacionada à pressão de reação e aplicada a um acionador (72, 100), que cria a carga de tração. Os componentes hidráulicos ainda incluem uma câmara de trabalho (C2, C4, CH1, CH2, CH3), que é seletivamente conectável e desconectável de uma das (ou ambas as) (i) pressão de reação e (ii) pressão de tração, a força de tração sendo em função da pressão na câmara de trabalho.
BRPI0412817-6A 2003-07-25 2004-06-15 sistema de controle de variador hidráulico BRPI0412817A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0317499.2A GB0317499D0 (en) 2003-07-25 2003-07-25 Hydraulic variator control arrangement
PCT/GB2004/002500 WO2005015061A1 (en) 2003-07-25 2004-06-15 Hydraulic variator control arrangement

Publications (1)

Publication Number Publication Date
BRPI0412817A true BRPI0412817A (pt) 2006-09-26

Family

ID=27772728

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0412817-6A BRPI0412817A (pt) 2003-07-25 2004-06-15 sistema de controle de variador hidráulico

Country Status (13)

Country Link
US (1) US8641576B2 (pt)
EP (1) EP1649199B1 (pt)
JP (1) JP4712701B2 (pt)
KR (1) KR101151459B1 (pt)
CN (1) CN1833125B (pt)
AT (1) ATE371127T1 (pt)
BR (1) BRPI0412817A (pt)
CA (1) CA2546455A1 (pt)
DE (1) DE602004008475T2 (pt)
GB (1) GB0317499D0 (pt)
MX (1) MXPA06000828A (pt)
RU (1) RU2006105653A (pt)
WO (1) WO2005015061A1 (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4742723B2 (ja) * 2005-07-27 2011-08-10 日本精工株式会社 トロイダル型無段変速機及び無段変速装置
JP4911338B2 (ja) * 2005-10-26 2012-04-04 株式会社ジェイテクト トロイダル型無段変速機
US8641577B2 (en) * 2007-06-11 2014-02-04 Fallbrook Intellectual Property Company Llc Continuously variable 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
GB2478003B (en) * 2010-02-23 2012-07-25 Torotrak Dev Ltd Variator traction control arrangement
GB2478120B (en) * 2010-02-24 2013-03-13 Torotrak Dev Ltd Fluid supply for continuously variable transmission
AU2013251662B2 (en) 2012-04-25 2017-05-25 Allison Transmission, Inc. Nested endload assembly for a variator
EP3052814B1 (en) 2013-10-03 2020-04-22 Energy Recovery, Inc. Frac system with hydraulic energy transfer system

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142190A (en) * 1963-02-20 1964-07-28 Curtiss Wright Corp Ratio control system for toroidal transmission
GB1132473A (en) 1965-11-15 1968-11-06 James Robert Young Variable ratio friction transmission and control system therefor
EP0006690B1 (en) 1978-05-31 1982-01-06 BL CARS Limited Control circuit for a continuously variable ratio transmission
GB2100372B (en) 1979-06-20 1983-06-02 Nat Res Dev Improvements in or relating to steplesslyvariable ratio transmissions
JPH0672652B2 (ja) * 1986-05-01 1994-09-14 日産自動車株式会社 トロイダル型無段変速機
JP2662565B2 (ja) * 1988-03-31 1997-10-15 アイシン精機株式会社 トロイダル形無段変速機
IN176702B (pt) * 1988-11-21 1996-08-24 Torotrak Dev Ltd
JP2636582B2 (ja) * 1991-08-01 1997-07-30 日産自動車株式会社 トロイダル無段変速機の制御装置
JP2583164B2 (ja) 1991-08-02 1997-02-19 宇部興産株式会社 芳香族コポリエステルの製造方法
GB2312257A (en) 1996-04-19 1997-10-22 Torotrak Dev Ltd Toroidal race variator control system varies end loading according to net pres sure
US6030310A (en) 1996-04-19 2000-02-29 Torotrak (Development) Limited Variator control system
US5938557A (en) * 1996-04-19 1999-08-17 Torotrak (Development) Limited CVT Control System
DE19721036B4 (de) * 1996-05-24 2006-09-14 Luk Gs Verwaltungs Kg Steuerventil für ein Fahrzeug mit einer Druckmittelanlage
JP4106797B2 (ja) * 1999-03-08 2008-06-25 日本精工株式会社 トロイダル形無段変速装置
US6162144A (en) 1999-06-01 2000-12-19 General Motors Corporation Traction coefficient control for a continuously variable transmission
DE60206609T2 (de) 2001-03-29 2006-07-20 Torotrak (Development) Ltd., Leyland Hydraulisches steuersystem für ein stufenlos verstellbares getriebe
EP1273833A1 (en) 2001-07-05 2003-01-08 Torotrak (Development) Limited A hydraulic control circuit for a continuously variable transmission

Also Published As

Publication number Publication date
EP1649199B1 (en) 2007-08-22
KR20060063917A (ko) 2006-06-12
JP4712701B2 (ja) 2011-06-29
CA2546455A1 (en) 2005-02-17
CN1833125A (zh) 2006-09-13
CN1833125B (zh) 2011-01-12
GB0317499D0 (en) 2003-08-27
KR101151459B1 (ko) 2012-06-01
US8641576B2 (en) 2014-02-04
ATE371127T1 (de) 2007-09-15
DE602004008475D1 (de) 2007-10-04
MXPA06000828A (es) 2006-04-18
EP1649199A1 (en) 2006-04-26
RU2006105653A (ru) 2006-07-10
DE602004008475T2 (de) 2008-05-15
JP2006528754A (ja) 2006-12-21
WO2005015061A1 (en) 2005-02-17
US20110105272A1 (en) 2011-05-05

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]