Impact of Pilot Valve Parameters on Performance of Automotive Continuous Damping Control Shock Absorber
Pilot valve is the key structure of continuous damping control shock absorber solenoid valve,which mainly regulates the opening pressure of the main relief valve,and its performance directly affects the damping characteristics of continuous damping control shock absorber.Taking a double-reset continuous damping control shock absorber pilot valve as the research object,firstly,Maxwell,Femm simulation and experimental data of the pilot valve are compared to verify the correctness of the simulation model.Then,the effects of enamelled wire diameter,enamelled wire temperature resistance class,soft magnetic material and structure size on the performance of the pilot valve are analyzed through parametric simulation and temperature rise test.The results show that the electromagnetic force is positively correlated with the wire diameter,and the steady force characteristic of the pilot valve deteriorates gradually when the wire diameter increases to the critical point of 0.45 mm.The temperature resistance grade of the enameled wire 240 ℃ limits the maximum operating current 2 A of the pilot valve,the knee position of the soft magnetic material affects the steady force characteristic of the pilot valve,and the performance of the pilot valve is improved by reducing the lateral clearance as much as possible.The height of the magnetic permeator has the most significant effect on the performance of the pilot valve.The research aims to provide a useful theoretical reference for the design of continuous damping control shock absorber pilot valve.
continuous damping control shock absorberpilot valveelectromagnetic forceenamelled wiresoft magnetic material
万方数据
维普
