JPS5911052B2 - 変速機自動制御用ダウンシフト阻止装置 - Google Patents

変速機自動制御用ダウンシフト阻止装置

Info

Publication number
JPS5911052B2
JPS5911052B2 JP50093281A JP9328175A JPS5911052B2 JP S5911052 B2 JPS5911052 B2 JP S5911052B2 JP 50093281 A JP50093281 A JP 50093281A JP 9328175 A JP9328175 A JP 9328175A JP S5911052 B2 JPS5911052 B2 JP S5911052B2
Authority
JP
Japan
Prior art keywords
pressure
transmission
selector
downshift
valve
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
Application number
JP50093281A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5139355A (en, 2012
Inventor
フランク ゴ−ラン ケネ−ス
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.)
Caterpillar Inc
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.)
Filing date
Publication date
Application filed by Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Publication of JPS5139355A publication Critical patent/JPS5139355A/ja
Publication of JPS5911052B2 publication Critical patent/JPS5911052B2/ja
Expired 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
    • F16H61/16—Inhibiting  or initiating  shift during unfavourable conditions , e.g. preventing forward-reverse shift at high vehicle speed, preventing engine overspeed  
    • 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
    • F16H61/0274—Control units where shifting is directly initiated by the driver, e.g. semi-automatic transmissions

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
  • Control Of Transmission Device (AREA)
JP50093281A 1974-08-02 1975-08-01 変速機自動制御用ダウンシフト阻止装置 Expired JPS5911052B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US494301A US3913416A (en) 1974-08-02 1974-08-02 Downshift inhibitor system for automatic transmission control
US494301 1974-08-02

Publications (2)

Publication Number Publication Date
JPS5139355A JPS5139355A (en, 2012) 1976-04-01
JPS5911052B2 true JPS5911052B2 (ja) 1984-03-13

Family

ID=23963916

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50093281A Expired JPS5911052B2 (ja) 1974-08-02 1975-08-01 変速機自動制御用ダウンシフト阻止装置

Country Status (5)

Country Link
US (1) US3913416A (en, 2012)
JP (1) JPS5911052B2 (en, 2012)
CA (1) CA1004504A (en, 2012)
GB (1) GB1472352A (en, 2012)
ZA (1) ZA751840B (en, 2012)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56103832A (en) * 1980-01-22 1981-08-19 Meidensha Electric Mfg Co Ltd Vacuum breaker
JPS61137150U (en, 2012) * 1985-02-14 1986-08-26

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3313183A (en) * 1964-05-04 1967-04-11 Gen Motors Corp Transmission
US3578007A (en) * 1969-12-10 1971-05-11 Caterpillar Tractor Co Delayed governor cutoff valve
US3709064A (en) * 1971-02-10 1973-01-09 Gen Motors Corp Multi-ratio transmission and control with downshift inhibitors
US3691872A (en) * 1971-04-29 1972-09-19 Gen Motors Corp Transmission and controls
US3738198A (en) * 1971-08-19 1973-06-12 Gen Motors Corp Shift inhibitors for power transmission
US3789698A (en) * 1972-05-12 1974-02-05 Gen Motors Corp Automatic shift for a transmission
US3818783A (en) * 1972-12-04 1974-06-25 Gen Motors Corp Manual and automatic shift controls for transmissions

Also Published As

Publication number Publication date
ZA751840B (en) 1976-02-25
AU7961575A (en) 1976-10-28
JPS5139355A (en, 2012) 1976-04-01
CA1004504A (en) 1977-02-01
US3913416A (en) 1975-10-21
GB1472352A (en) 1977-05-04

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