DE60205892D1 - Hydraulischer steuerkreis für ein stufenlos verstellbares getriebe - Google Patents

Hydraulischer steuerkreis für ein stufenlos verstellbares getriebe

Info

Publication number
DE60205892D1
DE60205892D1 DE60205892T DE60205892T DE60205892D1 DE 60205892 D1 DE60205892 D1 DE 60205892D1 DE 60205892 T DE60205892 T DE 60205892T DE 60205892 T DE60205892 T DE 60205892T DE 60205892 D1 DE60205892 D1 DE 60205892D1
Authority
DE
Germany
Prior art keywords
supply line
control circuit
hydraulic control
variator
continuously variable
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE60205892T
Other languages
English (en)
Other versions
DE60205892T2 (de
Inventor
William Fuller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Torotrak Development Ltd
Original Assignee
Torotrak Development 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 Development Ltd filed Critical Torotrak Development Ltd
Application granted granted Critical
Publication of DE60205892D1 publication Critical patent/DE60205892D1/de
Publication of DE60205892T2 publication Critical patent/DE60205892T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
DE60205892T 2001-05-01 2002-05-01 Hydraulischer steuerkreis für ein stufenlos verstellbares getriebe Expired - Lifetime DE60205892T2 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
GB0110597 2001-05-01
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
EP01305802 2001-07-05
GB0116473A GB0116473D0 (en) 2001-07-05 2001-07-05 A hydraulic control circuit for a continuously variable transmission
GB0116473 2001-07-05
PCT/GB2002/002024 WO2002088577A1 (en) 2001-05-01 2002-05-01 A hydraulic control circuit for a continuously variable transmission

Publications (2)

Publication Number Publication Date
DE60205892D1 true DE60205892D1 (de) 2005-10-06
DE60205892T2 DE60205892T2 (de) 2006-06-08

Family

ID=27224359

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60205892T Expired - Lifetime DE60205892T2 (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
CN102084158B (zh) * 2008-12-15 2013-06-05 丰田自动车株式会社 无级变速器
US8234956B2 (en) * 2008-12-31 2012-08-07 Caterpillar Inc. Piston actuated split input transmission synchronizer
US9091344B2 (en) * 2009-03-27 2015-07-28 Toyota Jidosha Kabushiki Kaisha Medium pressure control device of continuously variable transmission and continuously variable transmission
WO2011075427A1 (en) * 2009-12-16 2011-06-23 Allison Transmission, Inc. System and method for controlling endload force of a variator
US8401752B2 (en) * 2009-12-16 2013-03-19 Allison Transmission, Inc. Fail-to-neutral system and method for a toroidal traction drive automatic transmission
CN102713361B (zh) 2009-12-16 2015-11-25 艾里逊变速箱公司 变换器闭锁阀系统
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
CA2784373C (en) 2009-12-16 2017-11-07 Allison Transmission, Inc. Fast valve actuation system for an automatic transmission
CN102712312B (zh) * 2009-12-16 2015-08-05 艾里逊变速箱公司 变换器故障检测系统
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
EP2655938A4 (de) * 2010-12-15 2016-07-27 Allison Transm Inc Variator-schaltventilschema für ein ringförmiges zugantriebsgetriebe
WO2012082871A1 (en) * 2010-12-15 2012-06-21 Long Charles F Variator multiplex valve scheme for a torroidal traction drive transmission
WO2012082843A1 (en) 2010-12-15 2012-06-21 Long Charles F Dual pump regulator system for a motor vehicle transmission
US9400051B2 (en) * 2012-06-15 2016-07-26 Allison Transmisson, Inc. Cold operation mode control for an IVT

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
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
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
WO2002088577A1 (en) 2002-11-07
EP1392990A1 (de) 2004-03-03
JP2004522103A (ja) 2004-07-22
DE60205892T2 (de) 2006-06-08
US7278951B2 (en) 2007-10-09
ES2244804T3 (es) 2005-12-16
ATE303536T1 (de) 2005-09-15
EP1392990B1 (de) 2005-08-31
US20040171451A1 (en) 2004-09-02

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Legal Events

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