JPS5586946A - Hydraulic controller of automatic transmission gear - Google Patents

Hydraulic controller of automatic transmission gear

Info

Publication number
JPS5586946A
JPS5586946A JP16059278A JP16059278A JPS5586946A JP S5586946 A JPS5586946 A JP S5586946A JP 16059278 A JP16059278 A JP 16059278A JP 16059278 A JP16059278 A JP 16059278A JP S5586946 A JPS5586946 A JP S5586946A
Authority
JP
Japan
Prior art keywords
valve
oil
port
oil temperature
transmission 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.)
Granted
Application number
JP16059278A
Other languages
Japanese (ja)
Other versions
JPS5933780B2 (en
Inventor
Yoshio Shindo
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 JP16059278A priority Critical patent/JPS5933780B2/en
Publication of JPS5586946A publication Critical patent/JPS5586946A/en
Publication of JPS5933780B2 publication Critical patent/JPS5933780B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Control Of Transmission Device (AREA)

Abstract

PURPOSE: To prevent a shift timing valve from causing underlap and engine blow- up when oil temperature drops, by setting a thermal controller for controlling the spring force of the valve in accordance with the oil temperature.
CONSTITUTION: A shift valve 4 is fed with line pressure from a port 13. This line pressure is fed to a high clutch 2 from a port 14 through a shift timing valve 7, when the valve 4 is positioned at 4A, and from a port 15 to a low clutch 1, when the valve 4 is positioned at 4B. Accumulators 18, 19 are connected with oil passages to the clutches 1, 2 and an oil temperature compensating valve 38 is set in an oil passage 38 which introduces a preset level of control oil pressure Pc to the valve 7. The compensating valve 38 is equipped with a bimetal valve 46 for releasing a valve port 44 when oil temeperature drops below a preset level and cuts the control oil pressure off to the valve 7, its attitude being altered to 38A.
COPYRIGHT: (C)1980,JPO&Japio
JP16059278A 1978-12-22 1978-12-22 Automatic transmission hydraulic control device Expired JPS5933780B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16059278A JPS5933780B2 (en) 1978-12-22 1978-12-22 Automatic transmission hydraulic control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16059278A JPS5933780B2 (en) 1978-12-22 1978-12-22 Automatic transmission hydraulic control device

Publications (2)

Publication Number Publication Date
JPS5586946A true JPS5586946A (en) 1980-07-01
JPS5933780B2 JPS5933780B2 (en) 1984-08-17

Family

ID=15718275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16059278A Expired JPS5933780B2 (en) 1978-12-22 1978-12-22 Automatic transmission hydraulic control device

Country Status (1)

Country Link
JP (1) JPS5933780B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688451A (en) * 1983-05-24 1987-08-25 Toyota Jidosha Kabushiki Kaisha Transmission control system with separate shift timing control pressure supply passage
JPH0446259A (en) * 1990-06-07 1992-02-17 Nissan Motor Co Ltd Freezeproof device of forward/backward changeover system for continuous variable transmission
JPH04244663A (en) * 1991-01-25 1992-09-01 Nissan Motor Co Ltd Shift controller for automatic transmission
JPH05187536A (en) * 1991-06-27 1993-07-27 Saturn Corp Open-loop control method of automatic transmission
US7225775B2 (en) * 2005-03-22 2007-06-05 Aisin Seiki Kabushiki Kaisha Fluid supply apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688451A (en) * 1983-05-24 1987-08-25 Toyota Jidosha Kabushiki Kaisha Transmission control system with separate shift timing control pressure supply passage
JPH0446259A (en) * 1990-06-07 1992-02-17 Nissan Motor Co Ltd Freezeproof device of forward/backward changeover system for continuous variable transmission
JPH04244663A (en) * 1991-01-25 1992-09-01 Nissan Motor Co Ltd Shift controller for automatic transmission
JPH05187536A (en) * 1991-06-27 1993-07-27 Saturn Corp Open-loop control method of automatic transmission
US7225775B2 (en) * 2005-03-22 2007-06-05 Aisin Seiki Kabushiki Kaisha Fluid supply apparatus
CN100436761C (en) * 2005-03-22 2008-11-26 爱信精机株式会社 Fluid supply apparatus

Also Published As

Publication number Publication date
JPS5933780B2 (en) 1984-08-17

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