JPS55123041A - Hydraulic controller of automatic transmission - Google Patents
Hydraulic controller of automatic transmissionInfo
- Publication number
- JPS55123041A JPS55123041A JP3067979A JP3067979A JPS55123041A JP S55123041 A JPS55123041 A JP S55123041A JP 3067979 A JP3067979 A JP 3067979A JP 3067979 A JP3067979 A JP 3067979A JP S55123041 A JPS55123041 A JP S55123041A
- Authority
- JP
- Japan
- Prior art keywords
- throttle
- control valve
- transmission
- valve
- 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.)
- Pending
Links
Landscapes
- Control Of Transmission Device (AREA)
Abstract
PURPOSE: To eliminate positive torque imposed by inertial force of an engine onto an output shaft of transmission when the transmission is shifted to higher gear, by delaying occurrence of the shifting when the accelerator pedal is quickly relaxed.
CONSTITUTION: A hydraulic controller of an automatic transmission is equipped with a line control valve 42, manual reversing valve 44, throttle control valve 45, detent control valve 46, governor control valve 53, 1-2 and 2-3 transmission valves 56, 57, etc. A throttle element 101 and check valve 102 are set in parallel in the middle of an oil passage 52m. When the accelerator pedal is quickly relaxed and throttle oil pressure on a feed port 52 of the throttle control valve 45 is quickly reduced, reflux of throttle transferring oil from the gear-shifting control valves 56, 57 to the control valve 45 is shut off by the check valve 102, and the gear-shift is accomplished through slow control of the throttle 101.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3067979A JPS55123041A (en) | 1979-03-16 | 1979-03-16 | Hydraulic controller of automatic transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3067979A JPS55123041A (en) | 1979-03-16 | 1979-03-16 | Hydraulic controller of automatic transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55123041A true JPS55123041A (en) | 1980-09-22 |
Family
ID=12310381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3067979A Pending JPS55123041A (en) | 1979-03-16 | 1979-03-16 | Hydraulic controller of automatic transmission |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55123041A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4722251A (en) * | 1985-07-31 | 1988-02-02 | Aisin-Warner Kabushiki Kaisha | Hydraulic circuit for controlling an automatic transmission |
US4722250A (en) * | 1985-07-31 | 1988-02-02 | Aisin-Warner Kabushiki Kaisha | Accumulator back pressure control apparatus for automatic transmission |
US4727773A (en) * | 1985-07-31 | 1988-03-01 | Aisin-Warner Kabushiki Kaisha | Hydraulic circuit for controlling automatic transmission |
US4727774A (en) * | 1985-07-31 | 1988-03-01 | Aisin-Warner Kabushiki Kaisha | Cut-back pressure control device for multi-speed automatic transmission |
US4727772A (en) * | 1985-07-31 | 1988-03-01 | Aisin-Warner Kabushiki Kaisha | Multistage automatic shift control apparatus |
-
1979
- 1979-03-16 JP JP3067979A patent/JPS55123041A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4722251A (en) * | 1985-07-31 | 1988-02-02 | Aisin-Warner Kabushiki Kaisha | Hydraulic circuit for controlling an automatic transmission |
US4722250A (en) * | 1985-07-31 | 1988-02-02 | Aisin-Warner Kabushiki Kaisha | Accumulator back pressure control apparatus for automatic transmission |
US4727773A (en) * | 1985-07-31 | 1988-03-01 | Aisin-Warner Kabushiki Kaisha | Hydraulic circuit for controlling automatic transmission |
US4727774A (en) * | 1985-07-31 | 1988-03-01 | Aisin-Warner Kabushiki Kaisha | Cut-back pressure control device for multi-speed automatic transmission |
US4727772A (en) * | 1985-07-31 | 1988-03-01 | Aisin-Warner Kabushiki Kaisha | Multistage automatic shift control apparatus |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS55149454A (en) | Automatic transmission controller | |
US4488457A (en) | Malfunction prevention device of automotive hydraulic transmission | |
GB1386568A (en) | Line pressure modulating device for an automatic power transmission | |
AU556657B2 (en) | System for controlling the transmission ratio of an infinitely variable transmission | |
JPS57167529A (en) | Control system for torque convertor equipped with direct connection clutch | |
JPS5631549A (en) | Speed change controller for automatic transmission | |
JPS62137451A (en) | Control device for automatic transmission | |
JPS56105146A (en) | Directly coupled clutch controller for automatic speed change gear | |
JPS5737140A (en) | Hydraulic controller for automatic speed change gear | |
EP0118003A3 (en) | Transmission control system including select shock suppressing arrangement | |
GB2173556A (en) | A device for reducing engine torque when shifting a speed-change gear connected downstream of an internal combustion engine | |
GB1196720A (en) | Hydraulic Control System for Automatic Transmission | |
JPS55123041A (en) | Hydraulic controller of automatic transmission | |
GB1330318A (en) | Speed change mechanism | |
GB1055675A (en) | Improved control systems for variable-speed power transmission mechanisms | |
JPS52100055A (en) | Speed changing gear | |
JPH0792142B2 (en) | Shift hydraulic pressure control device for automatic transmission | |
JPS55109853A (en) | Clutch controller connected with torque converter of automatic transmission gear | |
GB2115505A (en) | Torque converter drive transmission with lock-up clutch | |
US3587352A (en) | Hydraulic control system for an automatic transmission mechanism | |
JPS5643033A (en) | Four wheel drive with automatic transmission | |
EP0314192B1 (en) | Friction element engagement pressure and timing control arrangement for automatic transmission | |
JPS5639353A (en) | Controlling method for lock-up of torque converter for vehicle | |
JPS566944A (en) | Hydraulic control device for automatic transmission | |
JPS5639354A (en) | Controlling method for torque converter |