JPS6487952A - Hydraulic control device for automatic transmission - Google Patents
Hydraulic control device for automatic transmissionInfo
- Publication number
- JPS6487952A JPS6487952A JP24627787A JP24627787A JPS6487952A JP S6487952 A JPS6487952 A JP S6487952A JP 24627787 A JP24627787 A JP 24627787A JP 24627787 A JP24627787 A JP 24627787A JP S6487952 A JPS6487952 A JP S6487952A
- Authority
- JP
- Japan
- Prior art keywords
- shift
- shock
- decreasing
- throttle opening
- pressure
- 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 promote the reduction of a shift shock by changing a pressure of oil in a control chamber by a solenoid valve through a control circuit and decreasing an output pressure of a regulator valve when a shift is performed with a fine throttle opening. CONSTITUTION:When a shift of N-D or N-R is performed with a fine throttle opening, an electronic control unit 28 generates an electric current of predetermined duty ratio actuating a solenoid valve 11, controlling a pressure of oil in a control chamber 36 and decreasing an output pressure of a regulator valve 4 by signals from a throttle opening sensor 30 and a shift position sensor 33. In this way, an engaging shock is relaxed. While in the time of speed change shift with an accelerator off, in a predetermined range, generating a predetermined solenoid current when a car speed reaches the speed change car speed, the solenoid valve 11 is actuated decreasing the output pressure and relaxing a speed change shock in the time with the accelerator off. Thus relaxing the shift shock, a control feeling improves.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62246277A JP2871683B2 (en) | 1987-09-30 | 1987-09-30 | Hydraulic control device for automatic transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62246277A JP2871683B2 (en) | 1987-09-30 | 1987-09-30 | Hydraulic control device for automatic transmission |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6487952A true JPS6487952A (en) | 1989-04-03 |
JP2871683B2 JP2871683B2 (en) | 1999-03-17 |
Family
ID=17146145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62246277A Expired - Fee Related JP2871683B2 (en) | 1987-09-30 | 1987-09-30 | Hydraulic control device for automatic transmission |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2871683B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01238750A (en) * | 1988-03-16 | 1989-09-22 | Aisin Aw Co Ltd | Hydraulic controller in automatic speed change controller and primary regulator valve therefor |
US5124923A (en) * | 1989-11-08 | 1992-06-23 | Aisin Seiki Kabushiki Kaisha | Retarding apparatus for automotive vehicles |
US5357444A (en) * | 1990-02-28 | 1994-10-18 | Aisin Seiki Kabushiki Kaisha | Retarding control apparatus which operates on the basis of signals such as a shift lever position signal |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61134440U (en) * | 1985-02-12 | 1986-08-21 |
-
1987
- 1987-09-30 JP JP62246277A patent/JP2871683B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61134440U (en) * | 1985-02-12 | 1986-08-21 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01238750A (en) * | 1988-03-16 | 1989-09-22 | Aisin Aw Co Ltd | Hydraulic controller in automatic speed change controller and primary regulator valve therefor |
US5124923A (en) * | 1989-11-08 | 1992-06-23 | Aisin Seiki Kabushiki Kaisha | Retarding apparatus for automotive vehicles |
US5357444A (en) * | 1990-02-28 | 1994-10-18 | Aisin Seiki Kabushiki Kaisha | Retarding control apparatus which operates on the basis of signals such as a shift lever position signal |
US5400251A (en) * | 1990-02-28 | 1995-03-21 | Aisin Seiki Kabushiki Kaisha | Retarding control apparatus |
Also Published As
Publication number | Publication date |
---|---|
JP2871683B2 (en) | 1999-03-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |