ATE303536T1 - Hydraulischer steuerkreis für ein stufenlos verstellbares getriebe - Google Patents

Hydraulischer steuerkreis für ein stufenlos verstellbares getriebe

Info

Publication number
ATE303536T1
ATE303536T1 AT02766661T AT02766661T ATE303536T1 AT E303536 T1 ATE303536 T1 AT E303536T1 AT 02766661 T AT02766661 T AT 02766661T AT 02766661 T AT02766661 T AT 02766661T AT E303536 T1 ATE303536 T1 AT E303536T1
Authority
AT
Austria
Prior art keywords
supply line
control circuit
hydraulic control
continuously adjustable
adjustable transmission
Prior art date
Application number
AT02766661T
Other languages
English (en)
Inventor
John William Edward 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
Priority claimed from GB0110597A external-priority patent/GB0110597D0/en
Priority claimed from EP01305802A external-priority patent/EP1273833A1/de
Priority claimed from GB0116473A external-priority patent/GB0116473D0/en
Application filed by Torotrak Dev Ltd filed Critical Torotrak Dev Ltd
Application granted granted Critical
Publication of ATE303536T1 publication Critical patent/ATE303536T1/de

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
    • F16H61/0021—Generation or control of line pressure
    • 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
    • F16H61/04—Smoothing ratio shift
    • F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
    • F16H61/065—Smoothing ratio shift by controlling rate of change of fluid pressure using fluid control means
    • F16H61/067—Smoothing ratio shift by controlling rate of change of fluid pressure using fluid control means using an accumulator
    • 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
    • F16H61/04—Smoothing ratio shift
    • F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
    • F16H61/065—Smoothing ratio shift by controlling rate of change of fluid pressure using fluid control means
    • F16H61/068—Smoothing ratio shift by controlling rate of change of fluid pressure using fluid control means using an orifice control valve
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Friction Gearing (AREA)
  • Control Of Transmission Device (AREA)
AT02766661T 2001-05-01 2002-05-01 Hydraulischer steuerkreis für ein stufenlos verstellbares getriebe ATE303536T1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0110597A GB0110597D0 (en) 2001-05-01 2001-05-01 An hydraulic control circuit for a continuosly variable transmission
EP01305802A EP1273833A1 (de) 2001-07-05 2001-07-05 Hydraulische Steuereinrichtung für ein stufenloses Getriebe
GB0116473A GB0116473D0 (en) 2001-07-05 2001-07-05 A hydraulic control circuit for a continuously variable transmission
PCT/GB2002/002024 WO2002088577A1 (en) 2001-05-01 2002-05-01 A hydraulic control circuit for a continuously variable transmission

Publications (1)

Publication Number Publication Date
ATE303536T1 true ATE303536T1 (de) 2005-09-15

Family

ID=27224359

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02766661T ATE303536T1 (de) 2001-05-01 2002-05-01 Hydraulischer steuerkreis für ein stufenlos verstellbares getriebe

Country Status (7)

Country Link
US (1) US7278951B2 (de)
EP (1) EP1392990B1 (de)
JP (1) JP2004522103A (de)
AT (1) ATE303536T1 (de)
DE (1) DE60205892T2 (de)
ES (1) ES2244804T3 (de)
WO (1) WO2002088577A1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0316382D0 (en) * 2003-07-12 2003-08-13 Torotrak Dev Ltd Continuously variable ratio transmission assembly and method of control of same
GB0703353D0 (en) * 2007-02-21 2007-03-28 Torotrak Dev Ltd Continuously variable transmission
JP4539765B2 (ja) * 2008-08-08 2010-09-08 トヨタ自動車株式会社 トロイダル式無段変速機
WO2010070718A1 (ja) * 2008-12-15 2010-06-24 トヨタ自動車株式会社 無段変速機
US8234956B2 (en) * 2008-12-31 2012-08-07 Caterpillar Inc. Piston actuated split input transmission synchronizer
CN102341623B (zh) * 2009-03-27 2015-01-14 丰田自动车株式会社 无级变速器的介质压力控制装置及无级变速器
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
KR20120117805A (ko) 2009-12-16 2012-10-24 알리손 트랜스미션, 인크. 자동 변속기를 위한 빠른 밸브 작동 시스템
US8676515B2 (en) * 2009-12-16 2014-03-18 Allison Transmission, Inc. System and method for detecting clutch-related faults in an automatic transmission
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
US8401752B2 (en) * 2009-12-16 2013-03-19 Allison Transmission, Inc. Fail-to-neutral system and method for a toroidal traction drive automatic transmission
KR20120094060A (ko) * 2009-12-16 2012-08-23 알리손 트랜스미션, 인크. 변속장치 오류감지시스템
CA2784375C (en) 2009-12-16 2017-10-31 Allison Transmission, Inc. Variator lockout valve system
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
EP2606258B1 (de) 2010-08-16 2020-08-05 Allison Transmission, Inc. Schaltschema für ein stufenloses getriebe
KR20130141635A (ko) 2010-12-15 2013-12-26 알리손 트랜스미션, 인크. 토로이달 트랙션 드라이브 변속기용 배리에이터 스위칭 밸브 구조물
CA2821956C (en) * 2010-12-15 2018-09-11 Allison Transmission, Inc. Variator multiplex valve scheme for a toroidal traction drive transmission
KR20140045302A (ko) 2010-12-15 2014-04-16 알리손 트랜스미션, 인크. 차량 변속기용 듀얼 펌프 조절기 시스템
US8897977B2 (en) * 2012-06-15 2014-11-25 Allison Transmission, Inc. Variator control with torque protection

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2108600A (en) * 1981-10-24 1983-05-18 Leyland Vehicles Continuously-variable-ratio transmisson
GB8320608D0 (en) * 1983-07-30 1983-09-01 Leyland Vehicles Hydraulic control system
DE19534391B4 (de) 1995-09-16 2005-10-06 Zf Sachs Ag Steueranordnung für ein im Antriebsstrang eines Kraftfahrzeugs angeordnetes Reibradgetriebe
GB2312258A (en) * 1996-04-19 1997-10-22 Torotrak Dev Ltd CVT control system has regime change clutches controlled independently of variator
US5938557A (en) * 1996-04-19 1999-08-17 Torotrak (Development) Limited CVT Control System
DE19757015A1 (de) 1997-12-20 1999-06-24 Zahnradfabrik Friedrichshafen Kraftfahrzeuggetriebe mit einer automatisch stufenlos verstellbaren Übersetzung
GB2337090A (en) * 1998-05-08 1999-11-10 Torotrak Dev Ltd Hydraulic control circuit for a continuously-variable ratio transmission
GB0113523D0 (en) * 2001-06-04 2001-07-25 Torotrak Dev Ltd An Hydraulic control circuit for a continuosly variable transmission

Also Published As

Publication number Publication date
JP2004522103A (ja) 2004-07-22
US7278951B2 (en) 2007-10-09
ES2244804T3 (es) 2005-12-16
DE60205892T2 (de) 2006-06-08
WO2002088577A1 (en) 2002-11-07
DE60205892D1 (de) 2005-10-06
EP1392990A1 (de) 2004-03-03
EP1392990B1 (de) 2005-08-31
US20040171451A1 (en) 2004-09-02

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Legal Events

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