BE789030A - Compact hydraulic system to switch a transmission from one state to another. - Google Patents

Compact hydraulic system to switch a transmission from one state to another.

Info

Publication number
BE789030A
BE789030A BE789030DA BE789030A BE 789030 A BE789030 A BE 789030A BE 789030D A BE789030D A BE 789030DA BE 789030 A BE789030 A BE 789030A
Authority
BE
Belgium
Prior art keywords
switch
transmission
state
another
hydraulic system
Prior art date
Application number
Other languages
French (fr)
Inventor
J G Starling
Original Assignee
Caterpillar Tractor Co
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.)
Publication date
Publication of BE789030A publication Critical patent/BE789030A/en

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
    • F16H61/04—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
    • F16H61/02—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 characterised by the signals used
    • F16H61/0262—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 characterised by the signals used the signals being hydraulic
    • F16H61/0265—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 characterised by the signals used the signals being hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals
    • F16H61/0272—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 characterised by the signals used the signals being hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals characterised by initiating reverse gearshift
    • 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
    • F16H61/16—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/08—Range selector apparatus
    • F16H2059/088—Fast forward-reverse-sequence mode
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/74—Inputs being a function of engine parameters
    • F16H2059/746—Engine running state, e.g. on-off of ignition switch
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/68—Inputs being a function of gearing status
    • F16H59/70—Inputs being a function of gearing status dependent on the ratio established
    • 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
    • F16H61/02—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 characterised by the signals used
    • F16H61/0262—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 characterised by the signals used the signals being hydraulic
    • F16H61/0265—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 characterised by the signals used the signals being hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals
    • F16H61/0267—Layout of hydraulic control circuits, e.g. arrangement of valves
    • F16H61/0269—Layout of hydraulic control circuits, e.g. arrangement of valves characterised by low integration or small number of valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Transmission Device (AREA)
BE789030D 1971-03-08 Compact hydraulic system to switch a transmission from one state to another. BE789030A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12181071A 1971-03-08 1971-03-08

Publications (1)

Publication Number Publication Date
BE789030A true BE789030A (en) 1973-01-15

Family

ID=22398948

Family Applications (1)

Application Number Title Priority Date Filing Date
BE789030D BE789030A (en) 1971-03-08 Compact hydraulic system to switch a transmission from one state to another.

Country Status (2)

Country Link
US (1) US3709065A (en)
BE (1) BE789030A (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863523A (en) * 1973-06-25 1975-02-04 Caterpillar Tractor Co Hydraulic safety system for a vehicle transmission
US3882738A (en) * 1973-12-03 1975-05-13 Caterpillar Tractor Co Simplified fluid circuit for shifting a transmission
US3991865A (en) * 1974-02-28 1976-11-16 Kabushiki Kaisha Komatsu Seisakusho Device for gradually increasing hydraulic pressure
US4111071A (en) * 1974-09-06 1978-09-05 Caterpillar Tractor Co. Modulating relief valve with hydraulic safety
JPS554969B2 (en) * 1974-12-11 1980-02-02
US3998111A (en) * 1975-03-24 1976-12-21 Caterpillar Tractor Co. Fluid circuit for shifting a transmission
US4337787A (en) * 1980-03-12 1982-07-06 Caterpillar Tractor Co. Pressure regulating hydraulic circuit and valve
JPS57500309A (en) * 1980-03-12 1982-02-18
JPS56143848A (en) * 1980-04-10 1981-11-09 Nissan Motor Co Ltd Oil pressure control device for transmission
US4345508A (en) * 1980-06-02 1982-08-24 Caterpillar Tractor Co. Control system for sequentially actuating fluid actuators
WO1982000184A1 (en) * 1980-06-30 1982-01-21 Suckow D Drive disengagement system
US4396099A (en) * 1981-03-09 1983-08-02 Deere & Company Control system for a clutch
US4422536A (en) * 1981-05-08 1983-12-27 Deere & Company Transmission control system with improved modulation rate regulating valve
US4465168A (en) * 1981-11-25 1984-08-14 Kabushiki Kaisha Komatsu Seisakusho Pressure control system for a transmission
US4650048A (en) * 1985-09-24 1987-03-17 Deere & Company Control system for transmission engagement
US4742731A (en) * 1986-12-18 1988-05-10 Payhauler Corp. Transmission range selector valve
DE4100672C1 (en) * 1991-01-11 1992-02-20 Mannesmann Rexroth Gmbh, 8770 Lohr, De
US5261456A (en) * 1992-11-02 1993-11-16 Deere & Company Transmission engagement override valve
JP2002071012A (en) * 2000-08-31 2002-03-08 Honda Motor Co Ltd Control device for automatic transmission gear for vehicle
US8500210B2 (en) * 2006-08-11 2013-08-06 Schlumberger Technology Corporation Resilient pick shank
EP1956248B1 (en) * 2007-02-12 2013-08-21 Schaeffler Technologies AG & Co. KG Device for controlling a number of hydraulic switching cylinders
US8540048B2 (en) * 2011-12-28 2013-09-24 Caterpillar Inc. System and method for controlling transmission based on variable pressure limit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3181394A (en) * 1962-03-19 1965-05-04 Caterpillar Tractor Co Hydraulic controls
US3389770A (en) * 1966-02-01 1968-06-25 Caterpillar Tractor Co Transmission hydraulic control
US3468194A (en) * 1967-05-10 1969-09-23 Caterpillar Tractor Co Hydraulic pressure modulating transmission control system

Also Published As

Publication number Publication date
US3709065A (en) 1973-01-09

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: CATERPILLAR INC.

Effective date: 19870930