JPS6412108A - Electronic control device for flow control valve - Google Patents
Electronic control device for flow control valveInfo
- Publication number
- JPS6412108A JPS6412108A JP17012887A JP17012887A JPS6412108A JP S6412108 A JPS6412108 A JP S6412108A JP 17012887 A JP17012887 A JP 17012887A JP 17012887 A JP17012887 A JP 17012887A JP S6412108 A JPS6412108 A JP S6412108A
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- signal
- deviation
- control device
- electronic control
- 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
Landscapes
- Servomotors (AREA)
- Fluid-Driven Valves (AREA)
Abstract
PURPOSE:To simplify an apparatus and to lessen dead zone of a pressure control valve by obtaining a deviation between the position of a controlled system and a target position and controlling a flow control valve according to a signal subjected to pulse-duration modulation corresponding to the deviation. CONSTITUTION:A pressure control valve 14 controlled by pilot pressure of a solenoid valve 13 is connected to an actuator 15, and output of from a position sensor 17 of the actuator 15 is input to an electronic control device 18. In the electronic control device 18, a deviation between a signal from the position sensor 17 and a signal from target value generating means 19 is obtained, and corresponding to the deviation, a pulse signal is subjected to pulse-duration modulation to drive a solenoid valve 13 according to the signal. Thus, dead zone of the pressure control valve 14 can be eliminated or lessened, and the need of judder generating means can be eliminated so as to simplify the device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17012887A JPS6412108A (en) | 1987-07-07 | 1987-07-07 | Electronic control device for flow control valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17012887A JPS6412108A (en) | 1987-07-07 | 1987-07-07 | Electronic control device for flow control valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6412108A true JPS6412108A (en) | 1989-01-17 |
Family
ID=15899168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17012887A Pending JPS6412108A (en) | 1987-07-07 | 1987-07-07 | Electronic control device for flow control valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6412108A (en) |
-
1987
- 1987-07-07 JP JP17012887A patent/JPS6412108A/en active Pending
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