JPH01119962U - - Google Patents
Info
- Publication number
- JPH01119962U JPH01119962U JP1564388U JP1564388U JPH01119962U JP H01119962 U JPH01119962 U JP H01119962U JP 1564388 U JP1564388 U JP 1564388U JP 1564388 U JP1564388 U JP 1564388U JP H01119962 U JPH01119962 U JP H01119962U
- Authority
- JP
- Japan
- Prior art keywords
- servo
- piston
- chamber
- pressure
- speed change
- 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 5
- 230000035939 shock Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Gear-Shifting Mechanisms (AREA)
- Control Of Transmission Device (AREA)
Description
第１図は本考案変速シヨツク軽減装置の一実施
例を示す自動変速機の変速制御油圧回路図、第２
図は同自動変速機の歯車伝動列を示す半部スケル
トン図、第３図は本発明による変速シヨツク軽減
効果を示す変速動作波形図である。
Ｂ／Ｂ…バンドブレーキ、ＢＳ／Ｒ…サーボレ
リーズ室、ＢＳ／Ａ…サーボアプライ室、１…オ
イルポンプ、３…プレツシヤレギユレータ弁、５
…マニユアル弁、７…３―４変速弁、８…１―２
変速弁、９…２―３変速弁、２０…逆止弁、２１
…ＳＲタイミング弁、２４…３―２タイミング弁
、２６…大径オリフイス、２７…小径オリフイス
、３０…バンドサーボ、３１…サーボピストン、
３２…ステム、３４…アキユムレータピストン、
３７…フリーピストン。
Fig. 1 is a shift control hydraulic circuit diagram of an automatic transmission showing an embodiment of the shift shock reducing device of the present invention;
The figure is a half-skeleton diagram showing the gear transmission train of the automatic transmission, and FIG. 3 is a shift operation waveform diagram showing the effect of reducing shift shock according to the present invention. B/B...band brake, BS/R...servo release chamber, BS/A...servo apply chamber, 1...oil pump, 3...pressure regulator valve, 5
...Manual valve, 7...3-4 speed change valve, 8...1-2
Speed change valve, 9...2-3 speed change valve, 20...Check valve, 21
...SR timing valve, 24...3-2 timing valve, 26...large diameter orifice, 27...small diameter orifice, 30...band servo, 31...servo piston,
32...Stem, 34...Accumulator piston,
37...Free piston.
Claims (1)
プライ室に圧力を供給する時サーボピストンがバ
ンドブレーキを締結させることにより或る変速を
行い、 サーボアプライ室に圧力を供給した状態でサー
ボレリーズ室に圧力を供給する時サーボピストン
がバンドブレーキを解放することにより別の変速
を行い、 サーボレリーズ室の圧力を速度制限しつつ抜い
てサーボアプライ室の圧力でサーボピストンがバ
ンドブレーキを締結させることにより他の変速を
行うようにした自動変速機において、 前記或る変速中前記サーボピストンと共に移動
し、このサーボピストンとの間に前記サーボレリ
ーズ室を画成するフリーピストンを設けたことを
特徴とする自動変速機の変速シヨツク軽減装置。[Scope of Claim for Utility Model Registration] When pressure is not supplied to the servo release chamber but is supplied to the servo apply chamber, the servo piston performs a certain speed change by engaging the band brake and supplies pressure to the servo apply chamber. When supplying pressure to the servo release chamber in the servo apply chamber, the servo piston releases the band brake and performs another speed change.The pressure in the servo release chamber is then released while limiting the speed, and the pressure in the servo apply chamber causes the servo piston to release the band brake. In an automatic transmission that performs another speed change by engaging a brake, a free piston is provided that moves together with the servo piston during the certain speed change and defines the servo release chamber between the servo piston and the servo piston. A shift shock reduction device for an automatic transmission, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1564388U JPH01119962U (en) | 1988-02-10 | 1988-02-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1564388U JPH01119962U (en) | 1988-02-10 | 1988-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01119962U true JPH01119962U (en) | 1989-08-14 |
Family
ID=31227865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1564388U Pending JPH01119962U (en) | 1988-02-10 | 1988-02-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01119962U (en) |
-
1988
- 1988-02-10 JP JP1564388U patent/JPH01119962U/ja active Pending
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