Simulation of Solenoid Valve Characteristics of Electronically Controlled Fuel System for Diesel Engine

摘要

To quantitatively analyze the influence of solenoid valve parameters on their dynamic response characteristics,mathematic models are built based on the electromagnetic theory.Research is carried out using mathematical models,whereby the dynamic response process of the solenoid valve driven by constant voltage is simulated.The four parameters,namely: driven voltage,initial air gap distance,spring preload,and the number of coil turns influence the dynamic characteristics of the solenoid valve.The solenoid valve displacement curves under different parameters are obtained.Theoretically determined relationships between the dynamic response characteristics and the structural and control parameters of the solenoid valve,provide the basis for the parameter matching of the solenoid valve,and the optimized design of electronic control fuel systems.