DK370984A - Hydraulisk styresystem til trinloest variabelt gear - Google Patents

Hydraulisk styresystem til trinloest variabelt gear Download PDF

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Publication number
DK370984A
DK370984A DK370984A DK370984A DK370984A DK 370984 A DK370984 A DK 370984A DK 370984 A DK370984 A DK 370984A DK 370984 A DK370984 A DK 370984A DK 370984 A DK370984 A DK 370984A
Authority
DK
Denmark
Prior art keywords
ram
hydraulic
roller mounting
control system
spools
Prior art date
Application number
DK370984A
Other languages
Danish (da)
English (en)
Other versions
DK370984D0 (da
Inventor
Christopher John Greenwood
Original Assignee
Leyland Vehicles
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 Leyland Vehicles filed Critical Leyland Vehicles
Publication of DK370984D0 publication Critical patent/DK370984D0/da
Publication of DK370984A publication Critical patent/DK370984A/da

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
    • F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
    • F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
    • F16H15/04—Gearings providing a continuous range of gear ratios
    • F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
    • F16H15/32—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line
    • F16H15/36—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface
    • F16H15/38—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces
    • 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
    • F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
    • F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
    • F16H15/04—Gearings providing a continuous range of gear ratios
    • F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
    • F16H15/32—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line
    • F16H15/36—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface
    • F16H15/38—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces
    • F16H2015/383—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces with two or more sets of toroid gearings arranged in parallel
    • 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
    • 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)
  • Friction Gearing (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Vehicle Body Suspensions (AREA)
  • Control Of Transmission Device (AREA)
  • Transmissions By Endless Flexible Members (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Valve Device For Special Equipments (AREA)
DK370984A 1983-07-30 1984-07-30 Hydraulisk styresystem til trinloest variabelt gear DK370984A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB838320608A GB8320608D0 (en) 1983-07-30 1983-07-30 Hydraulic control system

Publications (2)

Publication Number Publication Date
DK370984D0 DK370984D0 (da) 1984-07-30
DK370984A true DK370984A (da) 1985-01-31

Family

ID=10546561

Family Applications (1)

Application Number Title Priority Date Filing Date
DK370984A DK370984A (da) 1983-07-30 1984-07-30 Hydraulisk styresystem til trinloest variabelt gear

Country Status (7)

Country Link
US (1) US4662248A (ja)
EP (1) EP0133330B1 (ja)
JP (1) JPS60109651A (ja)
AT (1) ATE49034T1 (ja)
DE (1) DE3480861D1 (ja)
DK (1) DK370984A (ja)
GB (1) GB8320608D0 (ja)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH086797B2 (ja) * 1986-07-15 1996-01-29 本田技研工業株式会社 車両用無段変速機の変速制御方法
EP0321622A1 (en) * 1987-12-23 1989-06-28 Honda Giken Kogyo Kabushiki Kaisha Apparatus for controlling continuously variable automotive transmission
GB2215413A (en) * 1988-02-23 1989-09-20 Electro Hydraulic Technology L Gearbox control unit
US4885949A (en) * 1988-03-14 1989-12-12 Barber Jr John S Continuously variable or fixed ratio velocity transmission mechanism
GB8818518D0 (en) * 1988-08-04 1988-09-07 Robinson L K Improvements in/relating to ram units in transmission of toroidal race rolling traction type
GB8819430D0 (en) * 1988-08-16 1988-09-21 Greenwood C J Improvements in/relating to hydraulic control circuits for continuously-variable-ratio transmissions
US5423727A (en) * 1988-11-21 1995-06-13 Torotrak (Development) Limited Transmission of the toroidal-race rolling-traction type
JP2734583B2 (ja) * 1988-12-16 1998-03-30 日産自動車株式会社 無段変速機の変速制御装置
JPH07113410B2 (ja) * 1988-12-16 1995-12-06 日産自動車株式会社 トロイダル型無段変速機
GB2253252B (en) * 1989-11-03 1993-06-30 Torotrak Dev Ltd Improvements in or relating to continuously-variable-ratio transmissions of the toroidal-race rolling-traction type
GB8924816D0 (en) * 1989-11-03 1989-12-20 Greenwood Christopher J Improvements in or relating to continuously-variable-ratio transmissions of the toroidal-race rolling-traction type
GB8927161D0 (en) * 1989-12-01 1990-01-31 Greenwood Christopher J Improvements in or relating to transmissions of the tordial-race rolling-traction type
GB9005969D0 (en) * 1990-03-16 1990-05-09 Lambert David R Improvements in or relating to hydraulic control systems
GB9015438D0 (en) * 1990-07-13 1990-08-29 Fellows Thomas G Improvements in or relating to transmissions of the toroidal-race rolling-traction type
GB9024987D0 (en) * 1990-11-16 1991-01-02 Greenwood Christopher J Improvements in or relating to variators for transmissions of the toroidal-race rolling-traction type
GB2318161B (en) * 1996-10-14 1998-11-11 Nissan Motor Toroidal type continuously variable transmission
DE19757017C2 (de) * 1997-12-20 2000-02-24 Zahnradfabrik Friedrichshafen Reibradgetriebe mit Ventileinrichtung
DE19757015A1 (de) * 1997-12-20 1999-06-24 Zahnradfabrik Friedrichshafen Kraftfahrzeuggetriebe mit einer automatisch stufenlos verstellbaren Übersetzung
JP2000046135A (ja) * 1998-07-28 2000-02-18 Nissan Motor Co Ltd トロイダル型無段変速機の変速制御装置
EP1273833A1 (en) * 2001-07-05 2003-01-08 Torotrak (Development) Limited A hydraulic control circuit for a continuously variable transmission
EP1392990B1 (en) * 2001-05-01 2005-08-31 Torotrak (Development) Limited A hydraulic control circuit for a continuously variable transmission
DE10233089A1 (de) * 2002-07-19 2004-02-05 Daimlerchrysler Ag Getriebe mit stufenlos veränderbarer Übersetzung
GB0308214D0 (en) 2003-04-09 2003-05-14 Torotrak Dev Ltd Transmission of the toroidal race rolling traction type
DE502005006512D1 (de) * 2004-05-15 2009-03-12 Luk Lamellen & Kupplungsbau Vorrichtung zum Ansteuern einer Mehrzahl von hydraulischen Schaltzylindern sowie Hydraulikversorgungssystem für ein Doppelkupplungsgetriebe

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1069874A (en) * 1963-05-03 1963-05-19 Nat Res Dev Variable ratio transmission
GB1073484A (en) * 1964-08-07 1967-06-28 Nat Res Dev Damping device for hydraulic actuators
US3574289A (en) * 1969-05-06 1971-04-13 Gen Motors Corp Transmission and control system
US3684065A (en) * 1970-11-23 1972-08-15 Gen Motors Corp Transmission and clutch control
GB1367525A (en) * 1971-12-08 1974-09-18 Gkn Transmissions Ltd Variable ratio traction drive
US4297918A (en) * 1978-06-23 1981-11-03 National Research Development Corporation Control systems for steplessly-variable ratio transmissions
GB2023753B (en) * 1978-06-23 1982-12-22 Brie Perry F G De Control systems for steplessly-varibale ratio transmissions
US4275610A (en) * 1979-02-08 1981-06-30 Excelermatic Inc. Infinitely variable traction roller transmission
GB2108600A (en) * 1981-10-24 1983-05-18 Leyland Vehicles Continuously-variable-ratio transmisson
US4526051A (en) * 1983-03-18 1985-07-02 Excelermatic Inc. Infinitely variable traction roller transmission speed control arrangement

Also Published As

Publication number Publication date
DK370984D0 (da) 1984-07-30
DE3480861D1 (de) 1990-02-01
JPH0214580B2 (ja) 1990-04-09
ATE49034T1 (de) 1990-01-15
EP0133330A1 (en) 1985-02-20
EP0133330B1 (en) 1989-12-27
US4662248A (en) 1987-05-05
GB8320608D0 (en) 1983-09-01
JPS60109651A (ja) 1985-06-15

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment