JPH01131055U - - Google Patents
Info
- Publication number
- JPH01131055U JPH01131055U JP2588788U JP2588788U JPH01131055U JP H01131055 U JPH01131055 U JP H01131055U JP 2588788 U JP2588788 U JP 2588788U JP 2588788 U JP2588788 U JP 2588788U JP H01131055 U JPH01131055 U JP H01131055U
- Authority
- JP
- Japan
- Prior art keywords
- automatic transmission
- upshifting
- speed change
- frictional
- control device
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Transmission Device (AREA)
Description
第１図は本考案変速制御装置の一実施例を示す
要部油圧回路図、第２図はスロツトル圧の変化特
性図、第３図は第１図の装置による足離し２→３
アツプシフト変速動作の動作タイムチヤート、第
４図は自動変速機の変速パターン図、第５図は従
来の変速制御装置による足離し２→３アツプシフ
ト変速動作の動作タイムチヤートである。
Ｌ／Ｃ…ロークラツチ（或る摩擦要素）、Ｈ／
Ｃ…ハイクラツチ（他の摩擦要素）、Ｂ／Ｂ…バ
ンドブレーキ、２…減圧弁、３…スプール、４…
プラグ、７…切換弁、８…スプール。
Fig. 1 is a hydraulic circuit diagram of the main parts showing one embodiment of the transmission control device of the present invention, Fig. 2 is a throttle pressure change characteristic diagram, and Fig. 3 is a foot release 2→3 by the device shown in Fig. 1.
FIG. 4 is a shift pattern diagram of an automatic transmission; FIG. 5 is an operation time chart of a 2->3 upshift shift operation performed by a conventional shift control device. L/C...Low clutch (a certain friction element), H/
C...High clutch (other friction elements), B/B...Band brake, 2...Reducing valve, 3...Spool, 4...
Plug, 7...Switching valve, 8...Spool.
Claims (1)
作動、非作動切換えすることによりアツプシフト
変速を行うようにした自動変速機において、 アクセルペダルの釈放にともなうアツプシフト
変速を検知する手段と、 この足離しアツプシフト変速中前記或る摩擦要
素の作動油圧を低下させる減圧弁とを設けてなる
自動変速機の変速制御装置。[Scope of Claim for Utility Model Registration] In an automatic transmission in which upshifting is performed by switching between activating and deactivating other frictional elements when one frictional element is in a hydraulically activated state, upshifting is performed when the accelerator pedal is released. A speed change control device for an automatic transmission, comprising means for detecting: and a pressure reducing valve that reduces the working oil pressure of the certain friction element during the foot-off upshift speed change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2588788U JPH01131055U (en) | 1988-03-01 | 1988-03-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2588788U JPH01131055U (en) | 1988-03-01 | 1988-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01131055U true JPH01131055U (en) | 1989-09-06 |
Family
ID=31247020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2588788U Pending JPH01131055U (en) | 1988-03-01 | 1988-03-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01131055U (en) |
-
1988
- 1988-03-01 JP JP2588788U patent/JPH01131055U/ja active Pending
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