高速电磁开关阀这一数字式控制元件作为电子计算机与被控对象间的联系桥梁 ,使得人们能够直接利用电子计算机来完成对被控对象的控制任务。本文研究了应用于柴油机燃油喷射系统中高速电磁开关阀的数学模型。为了得到高速电磁开关快响应和强作用力特性 ,提出了一种新的性能预测方法 ,并进行了仿真与实验对比结果。该模型较成功地解决了高速电磁阀的电、磁、机、液耦合问题和预测出其动态性能 As a bridge between the computer and the controlled object, the digital control element of the high-speed electromagnetic switching valve enables people to directly use the electronic computer to complete the control task of the controlled object. This paper studies the mathematical model applied to the high speed solenoid valve in diesel fuel injection system. In order to obtain fast response and strong force characteristics of high-speed electromagnetic switch, a new performance prediction method is proposed, and the results of simulation and experiment are compared. The model successfully solved the high-speed electromagnetic valve electrical, magnetic, mechanical and fluid coupling problems and predict the dynamic performance