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JPS5639353A - Controlling method for lock-up of torque converter for vehicle - Google Patents

Controlling method for lock-up of torque converter for vehicle

Info

Publication number
JPS5639353A
JPS5639353A JP11192879A JP11192879A JPS5639353A JP S5639353 A JPS5639353 A JP S5639353A JP 11192879 A JP11192879 A JP 11192879A JP 11192879 A JP11192879 A JP 11192879A JP S5639353 A JPS5639353 A JP S5639353A
Authority
JP
Japan
Prior art keywords
lock
speed
released
torque converter
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
JP11192879A
Other languages
Japanese (ja)
Other versions
JPS6253740B2 (en
Inventor
Nobuaki Miki
Mutsumi Kawamoto
Kazuhiko Shibata
Tsuyoshi Yoshida
Hiroyuki Amano
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.)
Aisin AW Co Ltd
Original Assignee
Aisin AW Co Ltd
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 Aisin AW Co Ltd filed Critical Aisin AW Co Ltd
Priority to JP11192879A priority Critical patent/JPS5639353A/en
Priority to US06/181,537 priority patent/US4393467A/en
Publication of JPS5639353A publication Critical patent/JPS5639353A/en
Publication of JPS6253740B2 publication Critical patent/JPS6253740B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Transmission Device (AREA)
  • Control Of Fluid Gearings (AREA)

Abstract

PURPOSE: To widen the range of application of the lock-up and thereby save the fuel cost by a method wherein the lock-up is made applicable to every speed-change stage, the torque-converter condition is applied in the area where the effect of speed-change gearing by the torque converter is in force so as to prevent the fall of the performance of the driving force, while the lock-up condition is applied in the area where the above effect is not effected, and the above lock-up control is applied to each speed-change stage.
CONSTITUTION: The speed-change gearing is conducted by determining a speed-change stage to be applied on the basis of the 1st index of the rotational speed of the output axis of a torque converter or the rotational speed corresponding thereto, the 2nd index of the opening degree of an engine throttle valve or the quantity showing the operational condition of an engine or the like, and the 3rd index of the shift lever position and the speed-change stage, etc. When the 1st and 2nd indexes are in a predetermined area of lock-up operation in each of two or more speed-change stages, the torque converter is locked up, while the lock-up is released when the indexes are out of the area. Under such controlling conditions, the lock-up is made released when an accelerator is released or when the opening degree of the throttle is at such a level as possibly be regarded that the accelerator is released.
COPYRIGHT: (C)1981,JPO&Japio
JP11192879A 1979-09-01 1979-09-01 Controlling method for lock-up of torque converter for vehicle Granted JPS5639353A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP11192879A JPS5639353A (en) 1979-09-01 1979-09-01 Controlling method for lock-up of torque converter for vehicle
US06/181,537 US4393467A (en) 1979-09-01 1980-08-26 Lockup controlling system for variable speed, automatic transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11192879A JPS5639353A (en) 1979-09-01 1979-09-01 Controlling method for lock-up of torque converter for vehicle

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP63206070A Division JPH01164860A (en) 1988-08-19 1988-08-19 Method of controlling lock-up onboard torque converter

Publications (2)

Publication Number Publication Date
JPS5639353A true JPS5639353A (en) 1981-04-15
JPS6253740B2 JPS6253740B2 (en) 1987-11-11

Family

ID=14573630

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11192879A Granted JPS5639353A (en) 1979-09-01 1979-09-01 Controlling method for lock-up of torque converter for vehicle

Country Status (1)

Country Link
JP (1) JPS5639353A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57184751A (en) * 1981-05-06 1982-11-13 Toyota Motor Corp Control system of automatic speed changer for vehicle
JPS57195956A (en) * 1981-05-27 1982-12-01 Toyota Motor Corp Control method for automatic speed change gear for cars
JPS59200862A (en) * 1983-04-27 1984-11-14 Mazda Motor Corp Lockup control device for automatic speed change gear
US4584906A (en) * 1983-04-26 1986-04-29 Mazda Motor Corporation Gear shift control for an automatic transmission of a vehicle
US4687083A (en) * 1983-03-24 1987-08-18 Mazda Motor Corporation Lock up control of a hydraulic torque converter type automatic transmission

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08255136A (en) * 1995-03-17 1996-10-01 Fumio Abe Interactive desk-top calculator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3734251A (en) * 1971-11-18 1973-05-22 Gen Motors Corp Hydrodynamic unit with mechanical drive clutch
JPS5019698A (en) * 1973-06-23 1975-03-01
JPS5040957A (en) * 1973-07-30 1975-04-15

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3734251A (en) * 1971-11-18 1973-05-22 Gen Motors Corp Hydrodynamic unit with mechanical drive clutch
JPS5019698A (en) * 1973-06-23 1975-03-01
JPS5040957A (en) * 1973-07-30 1975-04-15

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57184751A (en) * 1981-05-06 1982-11-13 Toyota Motor Corp Control system of automatic speed changer for vehicle
JPS57195956A (en) * 1981-05-27 1982-12-01 Toyota Motor Corp Control method for automatic speed change gear for cars
JPS6316628B2 (en) * 1981-05-27 1988-04-09 Toyota Motor Co Ltd
US4687083A (en) * 1983-03-24 1987-08-18 Mazda Motor Corporation Lock up control of a hydraulic torque converter type automatic transmission
US4584906A (en) * 1983-04-26 1986-04-29 Mazda Motor Corporation Gear shift control for an automatic transmission of a vehicle
JPS59200862A (en) * 1983-04-27 1984-11-14 Mazda Motor Corp Lockup control device for automatic speed change gear
JPH05584B2 (en) * 1983-04-27 1993-01-06 Mazda Motor

Also Published As

Publication number Publication date
JPS6253740B2 (en) 1987-11-11

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