JPH0185563U - - Google Patents
Info
- Publication number
- JPH0185563U JPH0185563U JP18187687U JP18187687U JPH0185563U JP H0185563 U JPH0185563 U JP H0185563U JP 18187687 U JP18187687 U JP 18187687U JP 18187687 U JP18187687 U JP 18187687U JP H0185563 U JPH0185563 U JP H0185563U
- Authority
- JP
- Japan
- Prior art keywords
- continuously variable
- variable transmission
- clutch
- direct coupling
- path
- 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 10
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000009365 direct transmission Effects 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Transmission Device (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Transmission Devices (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、第３図、第４図はクラツチの切換時の油圧
変化図である。
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、３
２…出力軸、１７０…クラツチ切換弁、２００…
第１アキユムレータ、２０１…スプリング、２０
２…ピストン、２１０…第２アキユムレータ。
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, Fig. 2 is a circuit diagram of a hydraulic control device, and Figs. 3 and 4 are diagrams of changes in hydraulic pressure when the clutch is switched. be. DESCRIPTION OF SYMBOLS 1...Engine, 5...Input shaft, 6...Direct coupling clutch, 10...Continuously variable transmission, 20...Starting clutch, 3
2...Output shaft, 170...Clutch switching valve, 200...
First accumulator, 201...Spring, 20
2... Piston, 210... Second accumulator.
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、 直結信号油圧の給排により発進クラツチまたは
直結クラツチの一方に選択的に油圧を供給するク
ラツチ切換弁と、クラツチ切換弁から発進クラツ
チへの油路中に設けられた第１アキユムレータと
、クラツチ切換弁から直結クラツチへの油路中に
設けられた第２アキユムレータとを備え、第１ア
キユムレータにはスプリング荷重と同方向に発進
クラツチ油圧が入力され、対向方向に直結信号油
圧が入力される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。[Scope of Claim 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, the continuously variable transmission is provided with a starting clutch that is engaged during continuously variable transmission drive in the continuously variable transmission path, and a direct coupling clutch that is engaged during direct coupling drive is provided in the direct coupling drive path. a clutch switching valve that selectively supplies hydraulic pressure to either the starting clutch or the direct coupling clutch by discharging the clutch; a first accumulator provided in an oil path from the clutch switching valve to the starting clutch; and a second accumulator provided in the oil passage, with a direct coupling mechanism characterized in that a starting clutch hydraulic pressure is inputted to the first accumulator in the same direction as the spring load, and a direct coupling signal hydraulic pressure is inputted in the opposite direction. Hydraulic control device for continuously variable transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18187687U JPH0185563U (en) | 1987-11-28 | 1987-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18187687U JPH0185563U (en) | 1987-11-28 | 1987-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0185563U true JPH0185563U (en) | 1989-06-07 |
Family
ID=31473340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18187687U Pending JPH0185563U (en) | 1987-11-28 | 1987-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0185563U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004125103A (en) * | 2002-10-04 | 2004-04-22 | Jatco Ltd | Belt-type continuously variable transmission system for vehicle |
-
1987
- 1987-11-28 JP JP18187687U patent/JPH0185563U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004125103A (en) * | 2002-10-04 | 2004-04-22 | Jatco Ltd | Belt-type continuously variable transmission system for vehicle |
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