JPS57195956A - Control method for automatic speed change gear for cars - Google Patents

Control method for automatic speed change gear for cars

Info

Publication number
JPS57195956A
JPS57195956A JP8032681A JP8032681A JPS57195956A JP S57195956 A JPS57195956 A JP S57195956A JP 8032681 A JP8032681 A JP 8032681A JP 8032681 A JP8032681 A JP 8032681A JP S57195956 A JPS57195956 A JP S57195956A
Authority
JP
Japan
Prior art keywords
direct
coupled clutch
judged whether
yes
speed change
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
JP8032681A
Other languages
Japanese (ja)
Other versions
JPS6316628B2 (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 JP8032681A priority Critical patent/JPS57195956A/en
Publication of JPS57195956A publication Critical patent/JPS57195956A/en
Publication of JPS6316628B2 publication Critical patent/JPS6316628B2/ja
Granted 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)

Abstract

PURPOSE:To reduce a shock caused in a car by releasing a direct-coupled clutch when the amount of working a pedal for acceleration is zero, and deterring engagement of the direct-coupled clutch from the moment the amount starts increasing until a predetermined time value. CONSTITUTION:After completion of a step for switching control of a geared speed change mechanism, it comes to a control step for a direct-coupled clutch. First, it is judged whether the throttle opening theta is below about 3% or not. If yes, the direct-coupled clutch is released. If no, a time count T is started, and then it is judged whether the direct-coupled clutch is engaged or not. If the decision results in negative, it is judged whether at that time, a car velocity V is higher than a critical car velocity Ven for engagement of the direct-coupled clutch. If yes, it is judged whether the time count T is above a predetermined value T0 or not. If yes, the direct-coupled clutch is engaged, and if no, a running process is fed back.
JP8032681A 1981-05-27 1981-05-27 Control method for automatic speed change gear for cars Granted JPS57195956A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8032681A JPS57195956A (en) 1981-05-27 1981-05-27 Control method for automatic speed change gear for cars

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8032681A JPS57195956A (en) 1981-05-27 1981-05-27 Control method for automatic speed change gear for cars

Publications (2)

Publication Number Publication Date
JPS57195956A true JPS57195956A (en) 1982-12-01
JPS6316628B2 JPS6316628B2 (en) 1988-04-09

Family

ID=13715129

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8032681A Granted JPS57195956A (en) 1981-05-27 1981-05-27 Control method for automatic speed change gear for cars

Country Status (1)

Country Link
JP (1) JPS57195956A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5842861A (en) * 1981-09-07 1983-03-12 Honda Motor Co Ltd Controller of automatic speed change gear
JPS61228160A (en) * 1985-04-02 1986-10-11 Nissan Motor Co Ltd Lock-up control device of torque converter
JP2011052757A (en) * 2009-09-02 2011-03-17 Jatco Ltd Control device for automatic transmission

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53120048A (en) * 1977-03-28 1978-10-20 Hitachi Ltd Transmission
JPS5639353A (en) * 1979-09-01 1981-04-15 Aisin Warner Ltd Controlling method for lock-up of torque converter for vehicle
JPS5639354A (en) * 1979-09-01 1981-04-15 Aisin Warner Ltd Controlling method for torque converter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53120048A (en) * 1977-03-28 1978-10-20 Hitachi Ltd Transmission
JPS5639353A (en) * 1979-09-01 1981-04-15 Aisin Warner Ltd Controlling method for lock-up of torque converter for vehicle
JPS5639354A (en) * 1979-09-01 1981-04-15 Aisin Warner Ltd Controlling method for torque converter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5842861A (en) * 1981-09-07 1983-03-12 Honda Motor Co Ltd Controller of automatic speed change gear
JPS628665B2 (en) * 1981-09-07 1987-02-24 Honda Motor Co Ltd
JPS61228160A (en) * 1985-04-02 1986-10-11 Nissan Motor Co Ltd Lock-up control device of torque converter
JP2011052757A (en) * 2009-09-02 2011-03-17 Jatco Ltd Control device for automatic transmission

Also Published As

Publication number Publication date
JPS6316628B2 (en) 1988-04-09

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