JPS55132457A - Torque converter direct coupled clutch control device in automatic speed changer - Google Patents
Torque converter direct coupled clutch control device in automatic speed changerInfo
- Publication number
- JPS55132457A JPS55132457A JP3885679A JP3885679A JPS55132457A JP S55132457 A JPS55132457 A JP S55132457A JP 3885679 A JP3885679 A JP 3885679A JP 3885679 A JP3885679 A JP 3885679A JP S55132457 A JPS55132457 A JP S55132457A
- Authority
- JP
- Japan
- Prior art keywords
- oil chamber
- oil
- spool
- time
- direct coupled
- 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 Fluid Gearings (AREA)
Abstract
PURPOSE: To make accurate the open time of the direct coupled clutch and the begining and end of the speed change operation by the method wherein, at the time of speed change in speed change steps, the direct coupled clutch is opened for a fixed time by means of an orifice or an accumulator valve and a lockup cutoff valve.
CONSTITUTION: Accumulator valve 410 consists of pressure accumulation oil chamber 411, spool 412 and spring 413. When oil pressure is drawn into oil chamber 411, spool 412 gradually moves downward as shown in the drawing, and after a fixed time, it connects oil chamber 325 of lockup cutoff valve 320 and oil path 141 via oil path 146. During the time when oil pressure is drawn in oil chamber 323 and oil chamber 325 of spool 321 of lockup cutoff valve 320, it lies upward by the action of spring 322. When oil pressure in oil chamber 323 rises from a value below a specified value to a value above a specified value, spool 321 moves downward, and this condition is maintained for a specified time determined by check valve 390 and pressure accumulation oil chamber 411.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3885679A JPS55132457A (en) | 1979-03-30 | 1979-03-30 | Torque converter direct coupled clutch control device in automatic speed changer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3885679A JPS55132457A (en) | 1979-03-30 | 1979-03-30 | Torque converter direct coupled clutch control device in automatic speed changer |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2518286A Division JPS6263264A (en) | 1986-02-07 | 1986-02-07 | Automatic transmission with torque converter direct-coupled clutch |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55132457A true JPS55132457A (en) | 1980-10-15 |
JPS6318057B2 JPS6318057B2 (en) | 1988-04-16 |
Family
ID=12536837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3885679A Granted JPS55132457A (en) | 1979-03-30 | 1979-03-30 | Torque converter direct coupled clutch control device in automatic speed changer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55132457A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52106066A (en) * | 1976-03-02 | 1977-09-06 | Toyota Motor Corp | Direct connected clutch controller for automatic gear reduction having a torque converter with direct connected clutch |
JPS5322953A (en) * | 1976-08-16 | 1978-03-02 | Toyota Motor Corp | Hydraulic control apparatus of automati c transmission equipped with high gear clutch |
-
1979
- 1979-03-30 JP JP3885679A patent/JPS55132457A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52106066A (en) * | 1976-03-02 | 1977-09-06 | Toyota Motor Corp | Direct connected clutch controller for automatic gear reduction having a torque converter with direct connected clutch |
JPS5322953A (en) * | 1976-08-16 | 1978-03-02 | Toyota Motor Corp | Hydraulic control apparatus of automati c transmission equipped with high gear clutch |
Also Published As
Publication number | Publication date |
---|---|
JPS6318057B2 (en) | 1988-04-16 |
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