Abstract
As most of these days automatic transmissions adopt an electro-hydraulic controlled system, the role of the solenoid valve electronically controlled occupies an important position. This paper presents the driving circuit model with a current compensator by using system identification theory in addition to the existing dynamic model of the proportional control solenoid valve(PCSV). And the optimized parameter in the current compensator is obtained by frequency domain analysis so that the dynamic response is improved. In addition, we find that there are good matches between the simulation results and the experimental data.