JPS5725552A - Oil pressure control device of automatic speed changer for automobile - Google Patents
Oil pressure control device of automatic speed changer for automobileInfo
- 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
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
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)
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 |
-
1980
- 1980-07-23 JP JP10179180A patent/JPS5725552A/en active Granted
Cited By (11)
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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