JPH0178734U - - Google Patents
Info
- Publication number
- JPH0178734U JPH0178734U JP1987175523U JP17552387U JPH0178734U JP H0178734 U JPH0178734 U JP H0178734U JP 1987175523 U JP1987175523 U JP 1987175523U JP 17552387 U JP17552387 U JP 17552387U JP H0178734 U JPH0178734 U JP H0178734U
- Authority
- JP
- Japan
- Prior art keywords
- continuously variable
- variable transmission
- control valve
- clutch control
- direct
- 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 8
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000009365 direct transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Transmission Devices (AREA)
- Control Of Transmission Device (AREA)
Description
第１図は本考案にかかる直結機構付無段変速機
の一例の概略構成図、第２図は油圧制御装置の回
路図である。
１……エンジン、５……入力軸、６……直結ク
ラツチ、１０……無段変速装置、２０……発進ク
ラツチ、３２……出力軸、１５０……クラツチ制
御弁、１５１……第１信号油圧ポート、１５２…
…第２信号油圧ポート、１５７……スプール、１
５９……プランジヤ、１７０……クラツチ切換弁
、２２０……変速比切換弁。
FIG. 1 is a schematic configuration diagram of an example of a continuously variable transmission with a direct coupling mechanism according to the present invention, and FIG. 2 is a circuit diagram of a hydraulic control device. DESCRIPTION OF SYMBOLS 1... Engine, 5... Input shaft, 6... Direct coupling clutch, 10... Continuously variable transmission, 20... Starting clutch, 32... Output shaft, 150... Clutch control valve, 151... First signal Hydraulic port, 152...
...Second signal hydraulic port, 157...Spool, 1
59... Plunger, 170... Clutch switching valve, 220... Gear ratio switching valve.
Claims (1)
速経路と該無段変速経路の最高速比近傍の直結伝
達比を有する直結駆動経路とを並列に設け、無段
変速経路中に無段変速駆動時に係合される発進ク
ラツチを設け、直結駆動経路中に直結駆動時に係
合される直結クラツチを設けた直結機構付無段変
速機において、 発進クラツチへの供給油圧を制御するクラツチ
制御弁、クラツチ制御弁の信号油圧室に接続され
た第１電磁弁と、クラツチ制御弁の信号油圧室に
第１電磁弁とは並列に接続された第２電磁弁と、
変速比が低速比域にある時のみ、上記クラツチ制
御弁の信号油圧室と第２電磁弁とを結ぶ油路を開
く変速比切換弁とを備えたことを特徴とする直結
機構付無段変速機の油圧制御装置。[Claims for Utility Model Registration] A continuously variable transmission path having a continuously variable transmission and a directly coupled drive path having a direct transmission ratio near the highest speed ratio of the continuously variable transmission are provided in parallel between the input and output shafts. , in a continuously variable transmission with a direct coupling mechanism, in which a starting clutch that is engaged during continuously variable speed drive is provided in the continuously variable transmission path, and a direct coupled clutch that is engaged during direct coupled drive is provided in the direct coupled drive path, a clutch control valve that controls the supply hydraulic pressure of the clutch control valve, a first solenoid valve connected to the signal hydraulic chamber of the clutch control valve, and a second solenoid valve connected in parallel with the first solenoid valve to the signal hydraulic chamber of the clutch control valve. and,
A continuously variable transmission with a direct coupling mechanism, comprising a gear ratio switching valve that opens an oil passage connecting the signal hydraulic chamber of the clutch control valve and a second solenoid valve only when the gear ratio is in a low gear ratio range. Machine hydraulic control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987175523U JPH0178734U (en) | 1987-11-17 | 1987-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987175523U JPH0178734U (en) | 1987-11-17 | 1987-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0178734U true JPH0178734U (en) | 1989-05-26 |
Family
ID=31467313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987175523U Pending JPH0178734U (en) | 1987-11-17 | 1987-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0178734U (en) |
-
1987
- 1987-11-17 JP JP1987175523U patent/JPH0178734U/ja active Pending
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