JPS5757945A - Hydraulic pressure control unit to automatic transmission - Google Patents
Hydraulic pressure control unit to automatic transmissionInfo
- Publication number
- JPS5757945A JPS5757945A JP13460880A JP13460880A JPS5757945A JP S5757945 A JPS5757945 A JP S5757945A JP 13460880 A JP13460880 A JP 13460880A JP 13460880 A JP13460880 A JP 13460880A JP S5757945 A JPS5757945 A JP S5757945A
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pressure
- fluid pipe
- clutch
- directed
- 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
- Gear-Shifting Mechanisms (AREA)
- Control Of Transmission Device (AREA)
Abstract
PURPOSE: To let transmission torque rise gradually rather than boosting up impulsively when the gear of an automatic transmission to an automobile is shifted from "N" to "R" by adapting solenoid valves for a hydraulic control unit to feed and discharge hydraulic pressure alternatively to dual hydraulic pressure servos of a driving friction clutch.
CONSTITUTION: Upon shifting a gear from "N" to "R", a 3rd and 4th solenoid valves 230 and 240 are electrically continued in advance. Hydraulic pressure of a fluid pipe 315 is directed to a hydraulic pressure servo 22B via 1-2 shift valve 120, a fluid pipe 316, hydraulic pressure servo 35A, 2-3 shift valve 130 and a fluid pipe 320; a brake 35 and a clutch 22, acting as driving components, are engaged in operation, and the hydraulic pressure directed to a clutch sequence valve 190 is blocked by a spool 192. After a certain time, the 4th solenoid valve 240 is deenergized, the spool 192 for the clutch sequence valve 190 is set to the left bottom position shown in the diagram, fluid pipes 315 and 329 are interconnected and the hydraulic pressure of the fluid pipe 315 is directed to a hydraulic pressure servo 22A through the fluid pipe 329. Thus the sufficient capacity of transmission torque to the clutch 22 is secured when an automobile is backing.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13460880A JPS5757945A (en) | 1980-09-26 | 1980-09-26 | Hydraulic pressure control unit to automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13460880A JPS5757945A (en) | 1980-09-26 | 1980-09-26 | Hydraulic pressure control unit to automatic transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5757945A true JPS5757945A (en) | 1982-04-07 |
| JPS645180B2 JPS645180B2 (en) | 1989-01-30 |
Family
ID=15132371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13460880A Granted JPS5757945A (en) | 1980-09-26 | 1980-09-26 | Hydraulic pressure control unit to automatic transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5757945A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5470403A (en) * | 1992-06-22 | 1995-11-28 | Nippon Steel Corporation | Cold rolled steel sheet and hot dip zinc-coated cold rolled steel sheet having excellent bake hardenability, non-aging properties and formability, and process for producing same |
| US5690755A (en) * | 1992-08-31 | 1997-11-25 | Nippon Steel Corporation | Cold-rolled steel sheet and hot-dip galvanized cold-rolled steel sheet having excellent bake hardenability, non-aging properties at room temperature and good formability and process for producing the same |
| KR20140068206A (en) | 2011-09-28 | 2014-06-05 | 제이에프이 스틸 가부시키가이샤 | High strength steel plate and manufacturing method thereof |
| KR20140068183A (en) | 2011-10-13 | 2014-06-05 | 제이에프이 스틸 가부시키가이샤 | High-strength cold-rolled steel plate having excellent deep drawability and in-coil material uniformity, and method for manufacturing same |
| US9255318B2 (en) | 2009-06-26 | 2016-02-09 | Jfe Steel Corporation | High-steel galvanized steel sheet and method for manufacturing the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5164162A (en) * | 1974-10-16 | 1976-06-03 | Voith Getriebe Kg |
-
1980
- 1980-09-26 JP JP13460880A patent/JPS5757945A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5164162A (en) * | 1974-10-16 | 1976-06-03 | Voith Getriebe Kg |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5470403A (en) * | 1992-06-22 | 1995-11-28 | Nippon Steel Corporation | Cold rolled steel sheet and hot dip zinc-coated cold rolled steel sheet having excellent bake hardenability, non-aging properties and formability, and process for producing same |
| US5690755A (en) * | 1992-08-31 | 1997-11-25 | Nippon Steel Corporation | Cold-rolled steel sheet and hot-dip galvanized cold-rolled steel sheet having excellent bake hardenability, non-aging properties at room temperature and good formability and process for producing the same |
| US9255318B2 (en) | 2009-06-26 | 2016-02-09 | Jfe Steel Corporation | High-steel galvanized steel sheet and method for manufacturing the same |
| KR20140068206A (en) | 2011-09-28 | 2014-06-05 | 제이에프이 스틸 가부시키가이샤 | High strength steel plate and manufacturing method thereof |
| KR20140068183A (en) | 2011-10-13 | 2014-06-05 | 제이에프이 스틸 가부시키가이샤 | High-strength cold-rolled steel plate having excellent deep drawability and in-coil material uniformity, and method for manufacturing same |
| US9297052B2 (en) | 2011-10-13 | 2016-03-29 | Jfe Steel Corporation | High strength cold rolled steel sheet with excellent deep drawability and material uniformity in coil and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS645180B2 (en) | 1989-01-30 |
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