JPS6474345A - Controller for hydraulic operation type transmission for vehicle - Google Patents
Controller for hydraulic operation type transmission for vehicleInfo
- Publication number
- JPS6474345A JPS6474345A JP23100087A JP23100087A JPS6474345A JP S6474345 A JPS6474345 A JP S6474345A JP 23100087 A JP23100087 A JP 23100087A JP 23100087 A JP23100087 A JP 23100087A JP S6474345 A JPS6474345 A JP S6474345A
- Authority
- JP
- Japan
- Prior art keywords
- range
- advance
- servovalve
- switched
- manual valve
- 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 prevent the generation of abnormal noise and friction by restraining a servovalve to a retreat position until the hydraulic pressure of a hydraulic clutch in the second transmission system among the transmission systems for advance in which the oil feed is started from the timepoint of switching operation of a manual valve to an advance range becomes a prescribed value or more. CONSTITUTION:When a manual valve 9 is selection-operated from R range to advance range, a control valve 22 is held at a restriction position until the first speed pressure becomes a prescribed pressure, and a servovalve 11 is switched to an advance position. Therefore, when the manual valve 9 is switched from R range to advance range by stepping ON a brake, the revolution of an input shaft is restrained by the engagement force of the first speed hydraulic clutch C1, at the time point when the servovalve 11 is switched to the advance position, and even if the servovalve 11 is set into an N-range, the input shaft does not revolve, and a selector gear 6 and a counter gear G4a are smoothly meshed, in revolution state, and generation of abnormal noise is prevented.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23100087A JPS6474345A (en) | 1987-09-17 | 1987-09-17 | Controller for hydraulic operation type transmission for vehicle |
GB8821483A GB2210120B (en) | 1987-09-17 | 1988-09-14 | A hydraulically operated vehicular transmission |
US07/244,224 US4957015A (en) | 1987-09-17 | 1988-09-14 | Holding means and binding means for selector gear servo valve in a hydraulic transmission |
DE3831578A DE3831578A1 (en) | 1987-09-17 | 1988-09-16 | CONTROL ARRANGEMENT FOR A HYDRAULICALLY OPERATED VEHICLE ENGINE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23100087A JPS6474345A (en) | 1987-09-17 | 1987-09-17 | Controller for hydraulic operation type transmission for vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6474345A true JPS6474345A (en) | 1989-03-20 |
JPH056058B2 JPH056058B2 (en) | 1993-01-25 |
Family
ID=16916661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23100087A Granted JPS6474345A (en) | 1987-09-17 | 1987-09-17 | Controller for hydraulic operation type transmission for vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6474345A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4121774A1 (en) * | 1990-06-30 | 1992-01-09 | Suzuki Motor Co | CONTROL DEVICE FOR A TRANSMISSION |
US5343537A (en) * | 1991-10-31 | 1994-08-30 | International Business Machines Corporation | Statistical mixture approach to automatic handwriting recognition |
US5984832A (en) * | 1998-02-09 | 1999-11-16 | Hyundai Motor Company | Hydraulic control system for an automatic transmission used in vehicles |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6184450A (en) * | 1984-10-02 | 1986-04-30 | Honda Motor Co Ltd | Control device of hydraulic speed change gear for car |
JPS61236958A (en) * | 1985-04-12 | 1986-10-22 | Mazda Motor Corp | Electronic control transmission for vehicle |
-
1987
- 1987-09-17 JP JP23100087A patent/JPS6474345A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6184450A (en) * | 1984-10-02 | 1986-04-30 | Honda Motor Co Ltd | Control device of hydraulic speed change gear for car |
JPS61236958A (en) * | 1985-04-12 | 1986-10-22 | Mazda Motor Corp | Electronic control transmission for vehicle |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4121774A1 (en) * | 1990-06-30 | 1992-01-09 | Suzuki Motor Co | CONTROL DEVICE FOR A TRANSMISSION |
DE4121774C2 (en) * | 1990-06-30 | 1994-03-17 | Suzuki Motor Co | Shift control device for a motor vehicle transmission or motor vehicle transmission |
US5343537A (en) * | 1991-10-31 | 1994-08-30 | International Business Machines Corporation | Statistical mixture approach to automatic handwriting recognition |
US5984832A (en) * | 1998-02-09 | 1999-11-16 | Hyundai Motor Company | Hydraulic control system for an automatic transmission used in vehicles |
Also Published As
Publication number | Publication date |
---|---|
JPH056058B2 (en) | 1993-01-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080125 Year of fee payment: 15 |