JPS57179464A - Method of controlling automatic transmission for vehicle - Google Patents

Method of controlling automatic transmission for vehicle

Info

Publication number
JPS57179464A
JPS57179464A JP56065883A JP6588381A JPS57179464A JP S57179464 A JPS57179464 A JP S57179464A JP 56065883 A JP56065883 A JP 56065883A JP 6588381 A JP6588381 A JP 6588381A JP S57179464 A JPS57179464 A JP S57179464A
Authority
JP
Japan
Prior art keywords
direct clutch
vehicle speed
torque
line
direct
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.)
Granted
Application number
JP56065883A
Other languages
Japanese (ja)
Other versions
JPS5943667B2 (en
Inventor
Motoki Endo
Hiroshi Ito
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 JP56065883A priority Critical patent/JPS5943667B2/en
Publication of JPS57179464A publication Critical patent/JPS57179464A/en
Publication of JPS5943667B2 publication Critical patent/JPS5943667B2/en
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
    • F16H61/14—Control of torque converter lock-up clutches
    • F16H61/143—Control of torque converter lock-up clutches using electric control means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Gearings (AREA)
  • Control Of Transmission Device (AREA)

Abstract

PURPOSE:To improve maneuverability by changing over a direct clutch change- over line from speed change line to high vehicle speed side in a region where transfer torque of the released direct clutch is larger than that of the engaged one when a throttle is above a predetermined low speed opening. CONSTITUTION:When direct operation is carried out, vehicle speed is reduced below the values corresponding to points a, b, c, and tendency of a torque converter transfering from the coupling region to the torque converting region is blocked by a direct clutch 4 so that the reduction of vehicle speed is accompanied by shortage of output shaft torque. Thus, when the vehicle speed is lower than the value corresponding to point a, b or c in each speed change stage, the direct clutch is preferably released. The direct clutch 3 is controlled to be engaged or disengaged by a computer 24 according to line eyes prepared on the basis of such values.
JP56065883A 1981-04-30 1981-04-30 Control method for automatic transmission for vehicles Expired JPS5943667B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56065883A JPS5943667B2 (en) 1981-04-30 1981-04-30 Control method for automatic transmission for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56065883A JPS5943667B2 (en) 1981-04-30 1981-04-30 Control method for automatic transmission for vehicles

Publications (2)

Publication Number Publication Date
JPS57179464A true JPS57179464A (en) 1982-11-05
JPS5943667B2 JPS5943667B2 (en) 1984-10-23

Family

ID=13299816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56065883A Expired JPS5943667B2 (en) 1981-04-30 1981-04-30 Control method for automatic transmission for vehicles

Country Status (1)

Country Link
JP (1) JPS5943667B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6272958A (en) * 1985-09-25 1987-04-03 Nissan Motor Co Ltd Slip controlling device for lock-up torque converter
JP2010029512A (en) * 2008-07-30 2010-02-12 Seirin Kk Acupuncture and moxibustion needle with medical agent

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6272958A (en) * 1985-09-25 1987-04-03 Nissan Motor Co Ltd Slip controlling device for lock-up torque converter
JP2010029512A (en) * 2008-07-30 2010-02-12 Seirin Kk Acupuncture and moxibustion needle with medical agent

Also Published As

Publication number Publication date
JPS5943667B2 (en) 1984-10-23

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