JPS6458861A - Hydraulic controller for automatic transmission - Google Patents
Hydraulic controller for automatic transmissionInfo
- Publication number
- JPS6458861A JPS6458861A JP62214393A JP21439387A JPS6458861A JP S6458861 A JPS6458861 A JP S6458861A JP 62214393 A JP62214393 A JP 62214393A JP 21439387 A JP21439387 A JP 21439387A JP S6458861 A JPS6458861 A JP S6458861A
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pressure
- turbine runner
- working hydraulic
- frictional engaging
- entailing
- 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 Fluid Gearings (AREA)
- Control Of Transmission Device (AREA)
Abstract
PURPOSE:To perform proper shift operation without entailing a large shift shock by varying working hydraulic pressure to be fed to a frictional engaging element according to the generated torque of a turbine runner. CONSTITUTION:Generated torque out of a turbine runner of a torque converter is calculated by a calculating device on the basis of engine speed and revolution speed of the turbine runner to be detected by both first and second speed detecting devices. According to this calculation, a control characteristic altering device alters a control characteristic in working hydraulic pressure supply to a frictional engaging device or a clutch brake of a shift mechanism through a hydraulic control device. With this constitution, smooth shift operation is performed without entailing a large shift shock, while working hydraulic pressure for holding a frictional engaging element in a state after the engaging state is selected can be set to the irreducible minimum. Therefore driving load on an oil pump is also reduced, thus improvement in fuel consumption is well promotable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62214393A JPS6458861A (en) | 1987-08-28 | 1987-08-28 | Hydraulic controller for automatic transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62214393A JPS6458861A (en) | 1987-08-28 | 1987-08-28 | Hydraulic controller for automatic transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6458861A true JPS6458861A (en) | 1989-03-06 |
Family
ID=16655047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62214393A Pending JPS6458861A (en) | 1987-08-28 | 1987-08-28 | Hydraulic controller for automatic transmission |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6458861A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03249470A (en) * | 1990-02-28 | 1991-11-07 | Japan Electron Control Syst Co Ltd | Line pressure controller for automatic transmission |
KR100242065B1 (en) * | 1996-12-10 | 2000-03-02 | 정몽규 | Shift control method of automatic transmission |
US6129255A (en) * | 1999-02-15 | 2000-10-10 | Kabushiki Kaisha Shinkawa | Wire bonding apparatus |
USRE39134E1 (en) | 1991-12-03 | 2006-06-13 | Hitachi, Ltd. | Automatic transmission control system for an automobile |
USRE39684E1 (en) | 1991-12-03 | 2007-06-05 | Hitachi, Ltd. | Automatic automobile transmission with variable shift pattern controlled in response to estimated running load |
-
1987
- 1987-08-28 JP JP62214393A patent/JPS6458861A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03249470A (en) * | 1990-02-28 | 1991-11-07 | Japan Electron Control Syst Co Ltd | Line pressure controller for automatic transmission |
USRE39134E1 (en) | 1991-12-03 | 2006-06-13 | Hitachi, Ltd. | Automatic transmission control system for an automobile |
USRE39684E1 (en) | 1991-12-03 | 2007-06-05 | Hitachi, Ltd. | Automatic automobile transmission with variable shift pattern controlled in response to estimated running load |
KR100242065B1 (en) * | 1996-12-10 | 2000-03-02 | 정몽규 | Shift control method of automatic transmission |
US6129255A (en) * | 1999-02-15 | 2000-10-10 | Kabushiki Kaisha Shinkawa | Wire bonding apparatus |
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