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
Application number
JP7522288U
Other languages
Japanese (ja)
Other versions
JPH0637231Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP7522288U priority Critical patent/JPH0637231Y2/en
Publication of JPH01178263U publication Critical patent/JPH01178263U/ja
Application granted granted Critical
Publication of JPH0637231Y2 publication Critical patent/JPH0637231Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Control Of Transmission Device (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電磁弁で操作されるシフトバルブ及び同シフト
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.
JP7522288U 1988-06-08 1988-06-08 Automatic transmission engine blow-up prevention device Expired - Lifetime JPH0637231Y2 (en)

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)

Also Published As

Publication number Publication date
JPH0637231Y2 (en) 1994-09-28

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