JPS5725552A - Oil pressure control device of automatic speed changer for automobile - Google Patents

Oil pressure control device of automatic speed changer for automobile

Info

Publication number
JPS5725552A
JPS5725552A JP10179180A JP10179180A JPS5725552A JP S5725552 A JPS5725552 A JP S5725552A JP 10179180 A JP10179180 A JP 10179180A JP 10179180 A JP10179180 A JP 10179180A JP S5725552 A JPS5725552 A JP S5725552A
Authority
JP
Japan
Prior art keywords
oil pressure
valve
depressurizing
automobile
control device
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
JP10179180A
Other languages
Japanese (ja)
Other versions
JPS641703B2 (en
Inventor
Takeo Hiramatsu
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.)
Mitsubishi Motors Corp
Original Assignee
Mitsubishi Motors 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 Mitsubishi Motors Corp filed Critical Mitsubishi Motors Corp
Priority to JP10179180A priority Critical patent/JPS5725552A/en
Publication of JPS5725552A publication Critical patent/JPS5725552A/en
Publication of JPS641703B2 publication Critical patent/JPS641703B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Transmission Device (AREA)

Abstract

PURPOSE: To prevent shock due to speed change by putting the oil lines in the upper and lower flows of a depressurizing valve in communication with each other through a check valve and thereby obtaining a smooth exhaust of oil pressure from the friction elements even though the depressurizing valve stops to operate in the oil pressure adjusting position.
CONSTITUTION: Even though the spool valve 174 of a depressurizing valve 98 has sticking for any reason or a time lag in operation of the depressurizing valve 98 has occurred exhaust of the oil pressure from the brake 82 is carried out smoothly owing to the action of a check valve 100 to put the oil lines in the upper and lower flows of the depressurizing valve 98 into communication with each other, so that such phenomena can be surely prevented as the brake 82 being left in application or speed change shock owing to time lag in disengagement.
COPYRIGHT: (C)1982,JPO&Japio
JP10179180A 1980-07-23 1980-07-23 Oil pressure control device of automatic speed changer for automobile Granted JPS5725552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10179180A JPS5725552A (en) 1980-07-23 1980-07-23 Oil pressure control device of automatic speed changer for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10179180A JPS5725552A (en) 1980-07-23 1980-07-23 Oil pressure control device of automatic speed changer for automobile

Publications (2)

Publication Number Publication Date
JPS5725552A true JPS5725552A (en) 1982-02-10
JPS641703B2 JPS641703B2 (en) 1989-01-12

Family

ID=14309982

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10179180A Granted JPS5725552A (en) 1980-07-23 1980-07-23 Oil pressure control device of automatic speed changer for automobile

Country Status (1)

Country Link
JP (1) JPS5725552A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59226744A (en) * 1983-06-03 1984-12-19 Nissan Motor Co Ltd Apparatus for lessening speed change shock of automatic transmission
JPS60241559A (en) * 1984-05-14 1985-11-30 Toyota Motor Corp Controller for automatic speed change gear
JPS6136547A (en) * 1984-07-27 1986-02-21 Toyota Motor Corp Hydraulic controller for automatic transmission
JPS61167742A (en) * 1985-01-19 1986-07-29 Toyota Motor Corp Controller for transmission for car
JPS61167748A (en) * 1985-01-19 1986-07-29 Toyota Motor Corp Controller for transmission
JPS61167752A (en) * 1985-08-20 1986-07-29 Toyota Motor Corp Controller for transmission

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59226744A (en) * 1983-06-03 1984-12-19 Nissan Motor Co Ltd Apparatus for lessening speed change shock of automatic transmission
JPH0474577B2 (en) * 1983-06-03 1992-11-26
JPS60241559A (en) * 1984-05-14 1985-11-30 Toyota Motor Corp Controller for automatic speed change gear
JPH0567831B2 (en) * 1984-05-14 1993-09-27 Toyota Motor Co Ltd
JPS6136547A (en) * 1984-07-27 1986-02-21 Toyota Motor Corp Hydraulic controller for automatic transmission
JPH0567829B2 (en) * 1984-07-27 1993-09-27 Toyota Motor Co Ltd
JPS61167742A (en) * 1985-01-19 1986-07-29 Toyota Motor Corp Controller for transmission for car
JPS61167748A (en) * 1985-01-19 1986-07-29 Toyota Motor Corp Controller for transmission
JPH0573945B2 (en) * 1985-01-19 1993-10-15 Toyota Motor Co Ltd
JPS61167752A (en) * 1985-08-20 1986-07-29 Toyota Motor Corp Controller for transmission
JPH0574739B2 (en) * 1985-08-20 1993-10-19 Toyota Motor Co Ltd

Also Published As

Publication number Publication date
JPS641703B2 (en) 1989-01-12

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