JPH03123152U - - Google Patents
Info
- Publication number
- JPH03123152U JPH03123152U JP3165390U JP3165390U JPH03123152U JP H03123152 U JPH03123152 U JP H03123152U JP 3165390 U JP3165390 U JP 3165390U JP 3165390 U JP3165390 U JP 3165390U JP H03123152 U JPH03123152 U JP H03123152U
- Authority
- JP
- Japan
- Prior art keywords
- duty
- spool
- speed change
- pressure
- solenoid 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Gear-Shifting Mechanisms (AREA)
- Control Of Transmission Device (AREA)
Description
第１図は本考案の無段変速機の油圧制御装置の
第１の実施例を示す油圧回路図、第２図は本考案
の第２の実施例を示す油圧回路図、第３図は本考
案の第３の実施例を示す油圧回路図、第４図は本
考案の第４の実施例を示すデユーテイ信号とスプ
ールストロークのタイムチヤート図である。
２１，２２……ライン圧油路、２３……プライ
マリ圧油路、２４……デユーテイソレノイド弁、
２５……デユーテイ圧油路、５０……変速制御弁
、５１ｄ，５１ｅ……開閉ポート、５２……スプ
ール、５４，５５……油圧室、５６，５７……油
路。
Fig. 1 is a hydraulic circuit diagram showing a first embodiment of the hydraulic control device for a continuously variable transmission of the present invention, Fig. 2 is a hydraulic circuit diagram showing a second embodiment of the invention, and Fig. 3 is a hydraulic circuit diagram of the present invention. A hydraulic circuit diagram showing a third embodiment of the invention, and FIG. 4 is a time chart of duty signals and spool strokes showing a fourth embodiment of the invention. 21, 22...Line pressure oil passage, 23...Primary pressure oil passage, 24...Duty solenoid valve,
25... Duty pressure oil path, 50... Speed change control valve, 51d, 51e... Open/close port, 52... Spool, 54, 55... Hydraulic chamber, 56, 57... Oil path.
Claims (1)
テイソレノイド弁によるパルス状のデユーテイ圧
とを対向して作用し、給排油位置で繰返し動作し
てプライマリ圧を可変にする油圧制御系において
、 変速制御弁のスプールに作用するライン圧とデ
ユーテイ圧とを、上記スプールの移動に応じて自
動的に上記スプールの進行方向と逆向きにも加え
るように構成することを特徴とする無段変速機の
油圧制御装置。 (2) デユーテイソレノイド弁に出力するデユー
テイ信号を、デユーテイソレノイド弁のオン・オ
フの切換直後に反転することを特徴とする請求項
(1)記載の無段変速機の油圧制御装置。[Claims for Utility Model Registration] (1) The line pressure and the pulsed duty pressure from the duty solenoid valve are applied oppositely to the spool of the speed change control valve, and the primary pressure is increased by repeatedly operating at the oil supply and drain position. In the hydraulic control system that makes variable the speed change control valve, the line pressure and duty pressure acting on the spool of the speed change control valve are configured to be automatically applied in a direction opposite to the traveling direction of the spool in accordance with the movement of the spool. A hydraulic control device for a continuously variable transmission characterized by: (2) A claim characterized in that the duty signal output to the duty solenoid valve is inverted immediately after the duty solenoid valve is switched on and off.
(1) A hydraulic control device for the continuously variable transmission described in (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3165390U JPH03123152U (en) | 1990-03-27 | 1990-03-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3165390U JPH03123152U (en) | 1990-03-27 | 1990-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03123152U true JPH03123152U (en) | 1991-12-16 |
Family
ID=31534447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3165390U Pending JPH03123152U (en) | 1990-03-27 | 1990-03-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03123152U (en) |
-
1990
- 1990-03-27 JP JP3165390U patent/JPH03123152U/ja active Pending
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