JPH01178263U - - Google Patents
Info
- Publication number
- JPH01178263U JPH01178263U JP7522288U JP7522288U JPH01178263U JP H01178263 U JPH01178263 U JP H01178263U JP 7522288 U JP7522288 U JP 7522288U JP 7522288 U JP7522288 U JP 7522288U JP H01178263 U JPH01178263 U JP H01178263U
- Authority
- JP
- Japan
- Prior art keywords
- shift valve
- clutch
- automatic transmission
- valve
- speed clutch
- 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
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Gear-Shifting Mechanisms (AREA)
- Control Of Transmission Device (AREA)
Description
第１図は本考案の実施例としての前進２速／後
進２速自動変速機のコントロールのシステム図。
第２図はシフトバルブの断面構造図。第３図はシ
フトバルブの動きと変速タイミングを示す図で、
ａはスプール及びボデイ上のエツジの配置を示し
、ｂはアツプシフト時におけるストロークとクラ
ツチ油圧の関係を示し、ｃはダウンシフト時にお
けるストロークとクラツチ油圧の関係を示す。
６……メイン油圧、８……シフトバルブ、９…
…パイロツト油圧、１１……インチングバルブ、
１３……Ｆ／Ｒ切換バルブ、１７……電磁弁、１
９〜２２……クラツチ。
FIG. 1 is a control system diagram of a two forward speed/two reverse speed automatic transmission as an embodiment of the present invention.
Figure 2 is a cross-sectional structural diagram of the shift valve. Figure 3 is a diagram showing the movement of the shift valve and gear change timing.
A shows the arrangement of edges on the spool and the body, b shows the relationship between the stroke and clutch oil pressure during an upshift, and c shows the relationship between the stroke and the clutch oil pressure during a downshift. 6...Main oil pressure, 8...Shift valve, 9...
...Pilot oil pressure, 11...Inching valve,
13...F/R switching valve, 17...Solenoid valve, 1
9-22...Clutch.
Claims (1)
バルブで制御される複数速度段のクラツチを具え
た自動変速機において、アツプシフト時には低速
側クラツチと高速側クラツチに連通する油路を部
分的にラツプさせ、ダウンシフト時にはこれ等の
クラツチに連通する油路がラツプしないように、
シフトバルブのスプール及びボデイのエツジを配
置したことを特徴とする自動変速機のエンジン吹
き上がり防止装置。 In an automatic transmission equipped with a shift valve operated by a solenoid valve and a clutch of multiple speed stages controlled by the shift valve, an oil passage communicating with a low speed clutch and a high speed clutch is partially wrapped during upshifting, To prevent the oil passages communicating with these clutches from wrapping during downshifts,
A device for preventing engine racing of an automatic transmission, characterized in that a spool of a shift valve and an edge of a body are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7522288U JPH0637231Y2 (en) | 1988-06-08 | 1988-06-08 | Automatic transmission engine blow-up prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7522288U JPH0637231Y2 (en) | 1988-06-08 | 1988-06-08 | Automatic transmission engine blow-up prevention device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01178263U true JPH01178263U (en) | 1989-12-20 |
| JPH0637231Y2 JPH0637231Y2 (en) | 1994-09-28 |
Family
ID=31300293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7522288U Expired - Lifetime JPH0637231Y2 (en) | 1988-06-08 | 1988-06-08 | Automatic transmission engine blow-up prevention device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0637231Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2801805A4 (en) | 2012-02-27 | 2015-07-08 | Fujikura Ltd | PRESSURE SENSOR MODULE AND COVER |
-
1988
- 1988-06-08 JP JP7522288U patent/JPH0637231Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0637231Y2 (en) | 1994-09-28 |
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