气压式EPB用电磁阀的仿真与动态特性研究

Simulation and dynamic characteristics of pneumatic solenoid valve used in EPB

气压式EPB(电子驻车制动)系统电磁阀的响应速度直接影响系统的性能。通过建立气压式EPB用电磁阀机械系统、电系统和磁系统的数学模型,运用Matlab/Simulink对电磁阀进行仿真研究,得出影响电磁阀工作性能的主要因素和动态特性,从结构角度提出优化电磁阀性能的思路。

The response speed of pneumatic solenoid valve affects the performance of the pneumatic electronic parking brake（ EPB） system directly. The mathematical models of the solenoid valve including the mechanics model,the current model and the magnetism model are built,and the three models are simulated by using Matlab / Simulink. The primary factors influencing the valve performance and the dynamic characteristics are found. Some suggestions about structures are proposed to optimize the performance of the solenoid valve.