JPS57120752A - Detection of vehicle speed change gear position - Google Patents

Detection of vehicle speed change gear position

Info

Publication number
JPS57120752A
JPS57120752A JP512681A JP512681A JPS57120752A JP S57120752 A JPS57120752 A JP S57120752A JP 512681 A JP512681 A JP 512681A JP 512681 A JP512681 A JP 512681A JP S57120752 A JPS57120752 A JP S57120752A
Authority
JP
Japan
Prior art keywords
vehicle speed
speed change
change gear
tbl
gear
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.)
Pending
Application number
JP512681A
Other languages
Japanese (ja)
Inventor
Kazuyoshi Mizuno
Takehisa Yaegashi
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP512681A priority Critical patent/JPS57120752A/en
Publication of JPS57120752A publication Critical patent/JPS57120752A/en
Pending 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
    • 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
    • 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
    • F16H2059/706—Monitoring gear ratio in stepped transmissions, e.g. by calculating the ratio from input and output speed

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)

Abstract

PURPOSE:To detect the position of the speed change gear by using a system in which the ratio of the output signal of an engine revolving number sensor to the output signal of a vehicle speed sensor is obtained and the ratio obtained is compared with a set value. CONSTITUTION:At a step 42, the revolving number Ne of an engine is divided by a vehicle speed SPD, and the result is considered to NV which is nearly a fixed value varying according to the positions of speed change gear. At a step 44, a comparison is made as to whether NV is equal to a fixed value TBL(ix) stored in ROM. When NV is equal to TBL(1), (1) is put in detection signal SFT at a step 45 and processing cycle is completed. The detection signal SFT=1 indicates that gear is in low position, for example. In case of NO at the step 44, discrimination is repeated until NV becomes equal to TBL(ix) and the position of gear is detected.
JP512681A 1981-01-19 1981-01-19 Detection of vehicle speed change gear position Pending JPS57120752A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP512681A JPS57120752A (en) 1981-01-19 1981-01-19 Detection of vehicle speed change gear position

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP512681A JPS57120752A (en) 1981-01-19 1981-01-19 Detection of vehicle speed change gear position

Publications (1)

Publication Number Publication Date
JPS57120752A true JPS57120752A (en) 1982-07-27

Family

ID=11602617

Family Applications (1)

Application Number Title Priority Date Filing Date
JP512681A Pending JPS57120752A (en) 1981-01-19 1981-01-19 Detection of vehicle speed change gear position

Country Status (1)

Country Link
JP (1) JPS57120752A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59126044A (en) * 1983-01-07 1984-07-20 Diesel Kiki Co Ltd Vehicle-speed controlling apparatus
JPS6130770A (en) * 1984-07-24 1986-02-13 Diesel Kiki Co Ltd Vehicle detector
US4680988A (en) * 1984-11-22 1987-07-21 Nissan Motor Co., Ltd. Control for shock-free shift in an automatic transmission

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59126044A (en) * 1983-01-07 1984-07-20 Diesel Kiki Co Ltd Vehicle-speed controlling apparatus
JPH0221972B2 (en) * 1983-01-07 1990-05-16 Diesel Kiki Co
JPS6130770A (en) * 1984-07-24 1986-02-13 Diesel Kiki Co Ltd Vehicle detector
US4680988A (en) * 1984-11-22 1987-07-21 Nissan Motor Co., Ltd. Control for shock-free shift in an automatic transmission

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