JPS6455460A - Speed change controller for automatic transmission - Google Patents
Speed change controller for automatic transmissionInfo
- Publication number
- JPS6455460A JPS6455460A JP63150478A JP15047888A JPS6455460A JP S6455460 A JPS6455460 A JP S6455460A JP 63150478 A JP63150478 A JP 63150478A JP 15047888 A JP15047888 A JP 15047888A JP S6455460 A JPS6455460 A JP S6455460A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- speed change
- pressure
- fed
- coast
- 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)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
PURPOSE:To improve high speed drive performance by constructing a highest speed change valve with a coast valve arranged at one end, a valve body arranged at the other end and a compression coil spring arranged between the coast valve and the valve body and arranging so that detent pressure is fed between one end of the valve body and the other end of the coast valve. CONSTITUTION:Detent pressure for operating a highest speed change valve (3-4 speed change valve) 58 is fed between a coast valve 98 and a valve body 74 thereof to cancel throttle pressure fed to the highest speed change valve 58 upon kickdown, while simultaneously it is fed to the highest speed change valve 58 in order to stand against governor pressure. Consequently, speed change between 3 and 4 speed change stages is carried out irrespective of throttle pressure through confrontation between the governor pressure and the detent pressure for operating the highest speed change valve 58 when vehicle speed varies even in a region having high throttle opening, resulting in improvement of high speed driving performance and prevention of engine overrun.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63150478A JPS6455460A (en) | 1988-06-17 | 1988-06-17 | Speed change controller for automatic transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63150478A JPS6455460A (en) | 1988-06-17 | 1988-06-17 | Speed change controller for automatic transmission |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6455460A true JPS6455460A (en) | 1989-03-02 |
JPH037827B2 JPH037827B2 (en) | 1991-02-04 |
Family
ID=15497769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63150478A Granted JPS6455460A (en) | 1988-06-17 | 1988-06-17 | Speed change controller for automatic transmission |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6455460A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6023308A (en) * | 1991-10-16 | 2000-02-08 | Semiconductor Energy Laboratory Co., Ltd. | Active matrix device with two TFT's per pixel driven by a third TFT with a crystalline silicon channel |
US6331723B1 (en) | 1991-08-26 | 2001-12-18 | Semiconductor Energy Laboratory Co., Ltd. | Active matrix display device having at least two transistors having LDD region in one pixel |
US6693301B2 (en) | 1991-10-16 | 2004-02-17 | Semiconductor Energy Laboratory Co., Ltd. | Electro-optical device and method of driving and manufacturing the same |
US7071910B1 (en) | 1991-10-16 | 2006-07-04 | Semiconductor Energy Laboratory Co., Ltd. | Electrooptical device and method of driving and manufacturing the same |
US7253440B1 (en) | 1991-10-16 | 2007-08-07 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device having at least first and second thin film transistors |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53134169A (en) * | 1977-04-28 | 1978-11-22 | Toyota Motor Corp | Oil pressure control device in automatic transmission gear box |
JPS53155981U (en) * | 1977-05-13 | 1978-12-07 |
-
1988
- 1988-06-17 JP JP63150478A patent/JPS6455460A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53134169A (en) * | 1977-04-28 | 1978-11-22 | Toyota Motor Corp | Oil pressure control device in automatic transmission gear box |
JPS53155981U (en) * | 1977-05-13 | 1978-12-07 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6331723B1 (en) | 1991-08-26 | 2001-12-18 | Semiconductor Energy Laboratory Co., Ltd. | Active matrix display device having at least two transistors having LDD region in one pixel |
US6803600B2 (en) | 1991-08-26 | 2004-10-12 | Semiconductor Energy Laboratory Co., Ltd. | Insulated gate field effect semiconductor devices and method of manufacturing the same |
US7456427B2 (en) | 1991-08-26 | 2008-11-25 | Semiconductor Energy Laboratory Co., Ltd. | Insulated gate field effect semiconductor devices and method of manufacturing the same |
US6023308A (en) * | 1991-10-16 | 2000-02-08 | Semiconductor Energy Laboratory Co., Ltd. | Active matrix device with two TFT's per pixel driven by a third TFT with a crystalline silicon channel |
US6693301B2 (en) | 1991-10-16 | 2004-02-17 | Semiconductor Energy Laboratory Co., Ltd. | Electro-optical device and method of driving and manufacturing the same |
US6759680B1 (en) | 1991-10-16 | 2004-07-06 | Semiconductor Energy Laboratory Co., Ltd. | Display device having thin film transistors |
US7071910B1 (en) | 1991-10-16 | 2006-07-04 | Semiconductor Energy Laboratory Co., Ltd. | Electrooptical device and method of driving and manufacturing the same |
US7116302B2 (en) | 1991-10-16 | 2006-10-03 | Semiconductor Energy Laboratory Co., Ltd. | Process of operating active matrix display device having thin film transistors |
US7253440B1 (en) | 1991-10-16 | 2007-08-07 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device having at least first and second thin film transistors |
Also Published As
Publication number | Publication date |
---|---|
JPH037827B2 (en) | 1991-02-04 |
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