BR9910041A - Circuito de controle hidráulico para transmissão continuamente variável - Google Patents

Circuito de controle hidráulico para transmissão continuamente variável

Info

Publication number
BR9910041A
BR9910041A BR9910041-0A BR9910041A BR9910041A BR 9910041 A BR9910041 A BR 9910041A BR 9910041 A BR9910041 A BR 9910041A BR 9910041 A BR9910041 A BR 9910041A
Authority
BR
Brazil
Prior art keywords
valve
hydraulic
control
control circuit
continuously variable
Prior art date
Application number
BR9910041-0A
Other languages
English (en)
Inventor
Christopher John Greenwood
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 BR9910041A publication Critical patent/BR9910041A/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
    • F16H61/6648—Friction gearings controlling of shifting being influenced by a signal derived from the engine and the main coupling
    • 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

Landscapes

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

Abstract

"CIRCUITO DE CONTROLE HIDRáULICO PARA TRANSMISSãO CONTINUAMENTE VARIáVEL" A presente invenção apresenta um circuito de controle hidráulico para uma transmissão de razão continuamente variável. Um circuito de controle hidráulico para uma transmissão CVT inclui uma primeira válvula de controle de pressão hidráulica V~ 1~ para controlar a pressão do fluido hidráulico a ser fornecido aos pistões de controle de cilindro do variador e uma segunda válvula de controle de pressão hidráulica V~ 2~ para controlar a pressão do fluido hidráulico a ser fornecido a uma disposição de embreagem da transmissão. As válvulas V~ 1~, V~ 2~ são ligadas em série de fluxo e por um primeiro dispositivo de válvula direcionador de fluido V~ 3~ (S~ 1~, S~ 2~) para direcionar o fluxo de cada bomba P~ L~, P~ R~ até um primeiro ponto P a montante da válvula V~ 1~ou até um segundo ponto P a jusante da válvula V~ 1~, mas a montante da válvula V~ 2~. Pela adoção de tal disposição, é possível controlar as embreagens sem que seja afetada a posição dos cilindros e vice versa.
BR9910041-0A 1998-05-08 1999-05-07 Circuito de controle hidráulico para transmissão continuamente variável BR9910041A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9809959A GB2337090A (en) 1998-05-08 1998-05-08 Hydraulic control circuit for a continuously-variable ratio transmission
PCT/GB1999/001444 WO1999058883A1 (en) 1998-05-08 1999-05-07 An hydraulic control circuit for a continuously-variable-transmission

Publications (1)

Publication Number Publication Date
BR9910041A true BR9910041A (pt) 2001-01-09

Family

ID=10831755

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9910041-0A BR9910041A (pt) 1998-05-08 1999-05-07 Circuito de controle hidráulico para transmissão continuamente variável

Country Status (16)

Country Link
US (1) US6626793B1 (pt)
EP (1) EP1076786B1 (pt)
JP (1) JP2002514725A (pt)
KR (1) KR100561800B1 (pt)
CN (1) CN1114055C (pt)
AR (1) AR015046A1 (pt)
AU (1) AU748981B2 (pt)
BR (1) BR9910041A (pt)
CA (1) CA2330605A1 (pt)
DE (1) DE69903150T2 (pt)
GB (1) GB2337090A (pt)
HU (1) HU222033B1 (pt)
PL (1) PL344136A1 (pt)
RU (1) RU2232321C2 (pt)
WO (1) WO1999058883A1 (pt)
ZA (1) ZA200005511B (pt)

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10233089A1 (de) * 2002-07-19 2004-02-05 Daimlerchrysler Ag Getriebe mit stufenlos veränderbarer Übersetzung
GB2369164A (en) * 2000-11-16 2002-05-22 Torotrak Dev Ltd Hydraulic control of a continuously-variable ratio transmission
DE60205892T2 (de) 2001-05-01 2006-06-08 Torotrak (Development) Ltd., Leyland Hydraulischer steuerkreis 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
GB0113523D0 (en) 2001-06-04 2001-07-25 Torotrak Dev Ltd An Hydraulic control circuit for a continuosly variable transmission
US7303503B2 (en) * 2002-08-02 2007-12-04 Nsk Ltd. Toroidal-type continuously variable transmission
CA2401474C (en) * 2002-09-05 2011-06-21 Ecole De Technologie Superieure Drive roller control for toric-drive transmission
US7011600B2 (en) 2003-02-28 2006-03-14 Fallbrook Technologies Inc. Continuously variable transmission
GB0316382D0 (en) * 2003-07-12 2003-08-13 Torotrak Dev Ltd Continuously variable ratio transmission assembly and method of control of same
DE502005006512D1 (de) * 2004-05-15 2009-03-12 Luk Lamellen & Kupplungsbau Vorrichtung zum Ansteuern einer Mehrzahl von hydraulischen Schaltzylindern sowie Hydraulikversorgungssystem für ein Doppelkupplungsgetriebe
MX364884B (es) 2004-10-05 2019-05-10 Fallbrook Intellectual Property Company Llc Star Transmisión continuamente variable.
KR20130018976A (ko) 2005-10-28 2013-02-25 폴브룩 테크놀로지즈 인크 전기 기계 동력 전달 방법
US20070155567A1 (en) 2005-11-22 2007-07-05 Fallbrook Technologies Inc. Continuously variable transmission
CN102226464B (zh) 2005-12-09 2013-04-17 福博科技术公司 一种用于变速器的轴向力产生机构
EP1811202A1 (en) 2005-12-30 2007-07-25 Fallbrook Technologies, Inc. A continuously variable gear transmission
CN102269056B (zh) 2006-06-26 2013-10-23 福博科技术公司 无级变速器
US7544151B2 (en) * 2006-09-13 2009-06-09 Gm Global Technology Operations, Inc. Method and apparatus to monitor operation of an auxiliary hydraulic pump in a transmission
EP2125469A2 (en) 2007-02-01 2009-12-02 Fallbrook Technologies Inc. System and methods for control of transmission and/or prime mover
CN101657653B (zh) 2007-02-12 2014-07-16 福博科知识产权有限责任公司 一种传动装置
WO2008101070A2 (en) 2007-02-16 2008-08-21 Fallbrook Technologies Inc. Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor
EP2142826B1 (en) 2007-04-24 2015-10-28 Fallbrook Intellectual Property Company LLC Electric traction drives
US8641577B2 (en) 2007-06-11 2014-02-04 Fallbrook Intellectual Property Company Llc Continuously variable transmission
KR20100046166A (ko) 2007-07-05 2010-05-06 폴브룩 테크놀로지즈 인크 연속 가변 변속기
US8060284B2 (en) * 2007-10-31 2011-11-15 Deere & Company Work machine with torque limiting control for an infinitely variable transmission
CN103939602B (zh) 2007-11-16 2016-12-07 福博科知识产权有限责任公司 用于变速传动装置的控制器
EP2234869B1 (en) 2007-12-21 2012-07-04 Fallbrook Technologies Inc. Automatic transmissions and methods therefor
WO2009111328A1 (en) 2008-02-29 2009-09-11 Fallbrook Technologies Inc. Continuously and/or infinitely variable transmissions and methods therefor
US8317651B2 (en) 2008-05-07 2012-11-27 Fallbrook Intellectual Property Company Llc Assemblies and methods for clamping force generation
JP5457438B2 (ja) 2008-06-06 2014-04-02 フォールブルック インテレクチュアル プロパティー カンパニー エルエルシー 無限可変変速機、及び無限可変変速機用の制御システム
CN107246463A (zh) 2008-06-23 2017-10-13 福博科知识产权有限责任公司 无级变速器
WO2010017242A1 (en) 2008-08-05 2010-02-11 Fallbrook Technologies Inc. Methods for control of transmission and prime mover
US8469856B2 (en) 2008-08-26 2013-06-25 Fallbrook Intellectual Property Company Llc Continuously variable transmission
US8167759B2 (en) 2008-10-14 2012-05-01 Fallbrook Technologies Inc. Continuously variable transmission
KR101718754B1 (ko) 2009-04-16 2017-03-22 폴브룩 인텔렉츄얼 프로퍼티 컴퍼니 엘엘씨 무단 변속기를 위한 고정자 조립체 및 시프팅 장치
CN102713351B (zh) * 2009-12-16 2016-06-29 艾里逊变速箱公司 用于控制变速机构端负载作用力的系统和方法
US8401752B2 (en) 2009-12-16 2013-03-19 Allison Transmission, Inc. Fail-to-neutral system and method for a toroidal traction drive automatic transmission
EP2513516B1 (en) * 2009-12-16 2017-05-31 Allison Transmission, Inc. Variator lockout valve system
CA2784373C (en) 2009-12-16 2017-11-07 Allison Transmission, Inc. Fast valve actuation system for an automatic transmission
CA2784764C (en) * 2009-12-16 2019-03-12 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
US8676515B2 (en) 2009-12-16 2014-03-18 Allison Transmission, Inc. System and method for detecting clutch-related faults in an automatic transmission
GB2478003B (en) * 2010-02-23 2012-07-25 Torotrak Dev Ltd Variator traction control arrangement
US8512195B2 (en) 2010-03-03 2013-08-20 Fallbrook Intellectual Property Company Llc Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor
WO2012024225A1 (en) 2010-08-16 2012-02-23 Allison Transmission, Inc. Gear scheme for infinitely variable transmission
US8888643B2 (en) 2010-11-10 2014-11-18 Fallbrook Intellectual Property Company Llc Continuously variable transmission
CA2821956C (en) 2010-12-15 2018-09-11 Allison Transmission, Inc. Variator multiplex valve scheme for a toroidal traction drive transmission
EP2655938A4 (en) 2010-12-15 2016-07-27 Allison Transm Inc DRIVE SWITCHING VALVE PROGRAM FOR TORONTO TRACTION DRIVE TRANSMISSION
US8727942B2 (en) 2010-12-15 2014-05-20 AllisonTransmission, Inc. Dual pump regulator system for a motor vehicle transmission
JP6175450B2 (ja) 2012-01-23 2017-08-02 フォールブルック インテレクチュアル プロパティー カンパニー エルエルシー 無限可変変速機、連続可変変速機、方法、組立体、部分組立体およびその構成要素
US9037370B2 (en) 2012-06-15 2015-05-19 Allison Transmission, Inc. Multi-plexing clutch logic control of a multi-mode transmission
CN109018173B (zh) 2013-04-19 2021-05-28 福博科知识产权有限责任公司 无级变速器
US10047861B2 (en) 2016-01-15 2018-08-14 Fallbrook Intellectual Property Company Llc Systems and methods for controlling rollback in continuously variable transmissions
US10458526B2 (en) 2016-03-18 2019-10-29 Fallbrook Intellectual Property Company Llc Continuously variable transmissions, systems and methods
US10023266B2 (en) 2016-05-11 2018-07-17 Fallbrook Intellectual Property Company Llc Systems and methods for automatic configuration and automatic calibration of continuously variable transmissions and bicycles having continuously variable transmissions
JP7159657B2 (ja) * 2018-07-10 2022-10-25 トヨタ自動車株式会社 リニアソレノイドの制御装置
US11215268B2 (en) 2018-11-06 2022-01-04 Fallbrook Intellectual Property Company Llc Continuously variable transmissions, synchronous shifting, twin countershafts and methods for control of same
US11174922B2 (en) 2019-02-26 2021-11-16 Fallbrook Intellectual Property Company Llc Reversible variable drives and systems and methods for control in forward and reverse directions
CN112483560B (zh) * 2020-10-21 2022-04-01 北方汤臣传动科技有限公司 一种液力自动变速箱应急换挡系统

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2002145C1 (ru) * 1987-05-22 1993-10-30 Кабусики Кайс Комацу Сейсакусе (JP) Устройство управлени муфтой сцеплени и способ управлени муфтой сцеплени
GB8819430D0 (en) * 1988-08-16 1988-09-21 Greenwood C J Improvements in/relating to hydraulic control circuits for continuously-variable-ratio transmissions
GB8900210D0 (en) * 1989-01-06 1989-03-08 Fellows Thomas G Improvements in or relating to drivelines for wheeled vehicles
GB9005969D0 (en) * 1990-03-16 1990-05-09 Lambert David R Improvements in or relating to hydraulic control systems
GB9214190D0 (en) 1992-07-03 1992-08-12 Robinson Leslie K Improvements in or relating to continuously-variable-ratio transmissions of the toroidal-race rolling-traction type
IN189939B (pt) * 1993-12-20 2003-05-17 Torotrak Dev Ltd
DE19534391B4 (de) * 1995-09-16 2005-10-06 Zf Sachs Ag Steueranordnung für ein im Antriebsstrang eines Kraftfahrzeugs angeordnetes Reibradgetriebe
GB2312257A (en) * 1996-04-19 1997-10-22 Torotrak Dev Ltd Toroidal race variator control system varies end loading according to net pres sure
US5938557A (en) * 1996-04-19 1999-08-17 Torotrak (Development) Limited CVT Control System
GB2312258A (en) * 1996-04-19 1997-10-22 Torotrak Dev Ltd CVT control system has regime change clutches controlled independently of variator

Also Published As

Publication number Publication date
AU748981B2 (en) 2002-06-13
CN1300355A (zh) 2001-06-20
RU2232321C2 (ru) 2004-07-10
EP1076786A1 (en) 2001-02-21
KR20010043440A (ko) 2001-05-25
DE69903150T2 (de) 2003-01-30
AR015046A1 (es) 2001-04-11
KR100561800B1 (ko) 2006-03-21
CA2330605A1 (en) 1999-11-28
HUP0102140A3 (en) 2001-11-28
HUP0102140A2 (hu) 2001-10-28
JP2002514725A (ja) 2002-05-21
CN1114055C (zh) 2003-07-09
PL344136A1 (en) 2001-10-08
EP1076786B1 (en) 2002-09-25
GB9809959D0 (en) 1998-07-08
US6626793B1 (en) 2003-09-30
HU222033B1 (hu) 2003-03-28
DE69903150D1 (de) 2002-10-31
WO1999058883A1 (en) 1999-11-18
ZA200005511B (en) 2001-05-22
GB2337090A (en) 1999-11-10
AU3938499A (en) 1999-11-29

Similar Documents

Publication Publication Date Title
BR9910041A (pt) Circuito de controle hidráulico para transmissão continuamente variável
BR0112320A (pt) aparelho e método para a regulagem de pressões de bomba de fluido
GB0113523D0 (en) An Hydraulic control circuit for a continuosly variable transmission
BR0207264A (pt) Sistema de fluxo para avaliação e produção de dispositivo médico
DE502004011999D1 (de) Druckabhängiges sperrventil und hydrauliksystem mit einem solchen
DE502004012404D1 (de) Doppelkupplungsgetriebe mit einem hydraulisches System zur Bereitstellung von Drücken und Volumenströmen
AR039247A1 (es) Uso de polimeros de dispersion como reductores de friccion en fluidos fracturantes acuosos
BR0318097A (pt) Trocador de calor evaporativo de três fluidos
BR0215073A (pt) Sistema de controle de pressão para um conector de linha de controle hidráulico de conexão/desconexão molhada
ATE303536T1 (de) Hydraulischer steuerkreis für ein stufenlos verstellbares getriebe
DE60220752D1 (de) Steuervorrichtung eines Zylinders mit membrangesteuerten Pilotventilen
BR112012021421A2 (pt) abastecimento de fluido para transmissão continuamente variável.
DE69626537D1 (de) Steuerventile
BRPI0510562A (pt) aeronave com um sistema de conduto de fluido
DE3873576D1 (de) Hydraulische steuervorrichtung fuer verbrauchergruppen.
ATE488722T1 (de) Verfahren zur betätigung eines stufenlosen getriebes
BR112023024552A2 (pt) Distribuidor de freio hidráulico
ATE225008T1 (de) Hydrauliksteuerung für ein stufenlos veränderliches getriebe
BRPI0413613A (pt) difusor de válvula de exautão variável, método para liberar pressão de fluido a partir de um conduto, difusor de exautão para liberar pressão de fluido, e, difusor de exaustão variável
Neubert et al. Principle to closed loop control differential cylinder with double speed variable pumps and single loop control signal
ATE26477T1 (de) Steuerventil.
ATE266145T1 (de) Brennkraftmaschine mit variabler hydraulischer ventilsteuerungseinrichtung und ventilstössel mit doppelkolben
ATE528556T1 (de) Steuersystem für ein stufenloses getriebe
GB2005611A (en) Control valves for power steering
FR2857704B1 (fr) Distributeur hydraulique a fentes de couple

Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time