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)
  • Transmissions By Endless Flexible Members (AREA)
  • Valve Device For Special Equipments (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Arc Welding In General (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (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
WO2013163309A1 (en) 2012-04-25 2013-10-31 Brian Schoolcraft Nested endload assembly for a variator
US9945216B2 (en) * 2013-10-03 2018-04-17 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
DE2961754D1 (en) 1978-05-31 1982-02-25 British Leyland Cars Ltd 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
US5938557A (en) * 1996-04-19 1999-08-17 Torotrak (Development) Limited CVT Control System
US6030310A (en) * 1996-04-19 2000-02-29 Torotrak (Development) Limited Variator control system
GB2312257A (en) 1996-04-19 1997-10-22 Torotrak Dev Ltd Toroidal race variator control system varies end loading according to net pres sure
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
ES2249558T3 (es) * 2001-03-29 2006-04-01 Torotrak (Development) Ltd. Circuito hidraulico para el control de una unidad de relacion continuamente variable.
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
ATE371127T1 (de) 2007-09-15
WO2005015061A1 (en) 2005-02-17
CN1833125A (zh) 2006-09-13
EP1649199A1 (en) 2006-04-26
CA2546455A1 (en) 2005-02-17
RU2006105653A (ru) 2006-07-10
JP4712701B2 (ja) 2011-06-29
US20110105272A1 (en) 2011-05-05
KR20060063917A (ko) 2006-06-12
US8641576B2 (en) 2014-02-04
EP1649199B1 (en) 2007-08-22
CN1833125B (zh) 2011-01-12
MXPA06000828A (es) 2006-04-18
KR101151459B1 (ko) 2012-06-01
DE602004008475T2 (de) 2008-05-15
GB0317499D0 (en) 2003-08-27
JP2006528754A (ja) 2006-12-21
DE602004008475D1 (de) 2007-10-04

Similar Documents

Publication Publication Date Title
ATE413534T1 (de) Hydraulisches system
GB0805213D0 (en) An electric controller for a continuously variable transmission and a method of control of a continuously variable transmission
ATE306628T1 (de) Hydraulisches steuersystem für ein stufenlos verstellbares getriebe
GB2455030A (en) Continuously variable transmission
GB0317499D0 (en) Hydraulic variator control arrangement
NO20072782L (no) Forbedringer ved og knyttet til hydrauliske avstengere
WO2004048593A3 (en) Methods for using riboprimers for strand displacement replication of target sequences
WO2008129847A1 (ja) 移乗支援装置
BR0017134A (pt) Método de controlar hidraulicamente múltiplas ferramentas de poço, dispositivo de controle de atuação para uso em um poço subterr neo, sistema de controle de poço e atuador para uso em um poço subterr neo
NO20073131L (no) Heisanlegg og fremgangsmate for betjening av heisanlegg
WO2022194828A3 (de) Hydraulisches betätigungssystem für ein bremssystem mit einem 3/2-wegeventil zur wahlweisen verbindung des hauptbremszylinders entweder mit dem wegsimulator oder mit mindestens einem bremskreis
CA2453904A1 (en) Method and device for pressure controlled sequential operation
NO20010632L (no) Arrangent for Õ styre steinboring
ATE523718T1 (de) Stufenloses getriebe mit hydrauliksteuerungssystem
DE502006008960D1 (de) Hydrauliksystem an kraftfahrzeugen
ATE516460T1 (de) Hydraulischer antrieb
FR2868460B1 (fr) Mecanisme de manoeuvre d'une porte, utilisation d'un frein dans un tel mecanisme et procede de regulation d'un couple moteur dans un tel mecanisme
EP1275576A3 (en) Hydraulic system for a utility vehicle
WO2005108128A3 (en) Vehicle roll control system
WO2004045934A3 (de) Verfahren zum betrieb einer hydraulischen fahrzeugbremsanlage
AU2003234965A1 (en) Control system and a vehicle comprising the control system
ATE480434T1 (de) Hydrauliksystem
EP1241076A3 (en) Traveling control device
WO2006134324A3 (en) Improvements in or relating to drive systems
EP1967706A3 (de) Ventilantrieb

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]