JPS6271464U - - Google Patents
Info
- Publication number
- JPS6271464U JPS6271464U JP16290085U JP16290085U JPS6271464U JP S6271464 U JPS6271464 U JP S6271464U JP 16290085 U JP16290085 U JP 16290085U JP 16290085 U JP16290085 U JP 16290085U JP S6271464 U JPS6271464 U JP S6271464U
- Authority
- JP
- Japan
- Prior art keywords
- spool member
- speed change
- change control
- spool
- control 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
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
- Control Of Transmission Device (AREA)
Description
第１図は本考案による無段変速機の変速制御装
置を示す図、第２図は無段変速機の骨組図を示す
図、第３図は変速モータが変速比大側に回転した
ときの変速操作機構を示す図、第４図は第３図の
直後の状態を示す図、第５図は可動円すい板が変
速比大側に移動した状態の変速操作機構を示す図
である。
１６…駆動プーリ、２４…Ｖベルト、２６…従
動プーリ、１０６…変速制御弁、１１０…変速モ
ータ、１５８…変速比検出部材、７１２ａ…ポー
ト、１７２ｂ…ポート（第２ポート）、１７２ｃ
〜１７２ｅ…ポート、１７２ｆ…ポート（第１ポ
ート）、１７４…スプール、１７４′…第１スプ
ール部材、１７４ｂ″…第２スプール部材、１７
４ａ〜１７４ｄ…ランド、１７８…リンク、１８
２…ロツド。
Fig. 1 is a diagram showing the speed change control device of the continuously variable transmission according to the present invention, Fig. 2 is a diagram showing the framework of the continuously variable transmission, and Fig. 3 is a diagram showing the speed change control device of the continuously variable transmission according to the present invention. FIG. 4 is a view showing a state immediately after FIG. 3, and FIG. 5 is a view showing the speed change operation mechanism in a state where the movable conical plate has moved to the large speed ratio side. 16... Drive pulley, 24... V-belt, 26... Driven pulley, 106... Speed change control valve, 110... Speed change motor, 158... Speed ratio detection member, 712a... Port, 172b... Port (second port), 172c
~172e...Port, 172f...Port (first port), 174...Spool, 174'...First spool member, 174b''...Second spool member, 17
4a-174d...Land, 178...Link, 18
2... Rod.
Claims (1)
る駆動プーリ及び従動プーリと、両プーリ間に巻
き掛けられるＶベルトと、変速モータと、変速モ
ータの回転に応じて軸方向に移動するロツドと、
両プーリの可動円すい板に作用する油圧を制御可
能な変速制御弁と、変速比検出部材によつて検出
される可動円すい板の移動を変速制御弁にフイー
ドバツクするようにロツド、変速制御弁及び変速
比検出部材を連結するリンクと、を有する無段変
速機の変速制御装置において、 変速制御弁のスプールは軸方向に互いに分離可
能な第１スプール部材と第２スプール部材とから
成り、第１スプール部材がリンクと連結されてお
り、第２スプール部材はスプリングによつて第１
スプール部材側に押圧されており、第１スプール
部材及び第２スプール部材が所定以上変速比大側
へ移動したとき両者間に駆動プーリシリンダ室の
油圧を導入する第１ポートが設けられており、こ
の第１ポートから作用する油圧によつて第２スプ
ール部材が第１スプール部材から分離して更に変
速比大側へ移動した状態では駆動プーリシリンダ
室と連通する油路と接続された変速制御弁の第２
ポートが完全に解放状態となると共にドレーンポ
ートと連通するように構成されていることを特徴
とする無段変速機の変速制御装置。[Scope of Claim for Utility Model Registration] A driving pulley and a driven pulley each consisting of a fixed conical plate and a movable conical plate, a V-belt wound between both pulleys, a variable speed motor, and a variable speed motor that rotates in the axial direction according to the rotation of the variable speed motor. The moving rod and
A speed change control valve capable of controlling the hydraulic pressure acting on the movable conical plates of both pulleys, and a rod, a speed change control valve, and a speed change mechanism configured to feed back the movement of the movable conical plate detected by the speed ratio detection member to the speed change control valve. In a speed change control device for a continuously variable transmission having a link connecting a ratio detection member, the spool of the speed change control valve is composed of a first spool member and a second spool member that are separable from each other in the axial direction, and the first spool a member is connected to the link, and the second spool member is connected to the first spool member by a spring.
A first port is provided which is pressed toward the spool member side and which introduces hydraulic pressure of the drive pulley cylinder chamber between the first spool member and the second spool member when the first spool member and the second spool member move toward the larger gear ratio side by more than a predetermined value; When the second spool member is separated from the first spool member and further moved toward the larger gear ratio side by the hydraulic pressure acting from the first port, the speed change control valve is connected to the oil passage communicating with the drive pulley cylinder chamber. the second of
A speed change control device for a continuously variable transmission, characterized in that the port is configured to be in a completely open state and communicate with a drain port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16290085U JPH0638214Y2 (en) | 1985-10-25 | 1985-10-25 | Shift control device for continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16290085U JPH0638214Y2 (en) | 1985-10-25 | 1985-10-25 | Shift control device for continuously variable transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6271464U true JPS6271464U (en) | 1987-05-07 |
| JPH0638214Y2 JPH0638214Y2 (en) | 1994-10-05 |
Family
ID=31090603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16290085U Expired - Lifetime JPH0638214Y2 (en) | 1985-10-25 | 1985-10-25 | Shift control device for continuously variable transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0638214Y2 (en) |
-
1985
- 1985-10-25 JP JP16290085U patent/JPH0638214Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0638214Y2 (en) | 1994-10-05 |
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