| 摘要 |
PROBLEM TO BE SOLVED: To provide an opening control device for a solenoid driving valve, which excellently maintains the response of the solenoid driving valve and enables linear valve opening control. SOLUTION: The opening control device C for the solenoid driving valve S supplies a driving current I on which a dither signal is superimposed on a driving coil to S1 provided on the solenoid driving valve S as a control object. In this device, a dither amplitude determining section C4 is provided that determines an amplitude value of the dither signal to be superimposed on the driving current I according to the valve control direction of the solenoid driving valve S and the present position on the movable shaft of a moving-iron core S2 provided on the solenoid driving valve S. COPYRIGHT: (C)2011,JPO&INPIT |
