关键词: 汽车发动机；电磁阀；仿真；动态特性

Abstract: To quantitatively analyze the influence of solenoid valve parameters on its dynamic response characteristics, the mathematic models are built based on the electromagnetic theory, then the simulation research is carried out by using the simulation models. The dynamic response process of solenoid valve driven by constant voltage is simulated, the driven voltage, initial air gap distance, spring preload and the coil turns four parameters have influence on the dynamic characteristics of the solenoid valve. The solenoid valve displacement curves under different parameters are obtained, theoretically determined the relationship between the dynamic response characteristics and the structure parameters and control parameters of the solenoid valve, and provides the basis for the parameter matching of solenoid valve and the optimization design of electronic control fuel system.

Key words: Automobile engine; Solenoid valve; Simulation; Dy