Design and Simulation of Solenoid Valve Driving Circuit Module for High Pressure Common Rail Diesel Injector

Abstract

According to the principle of BOOST and working characteristics of current mode PWM control chip UC3842, a drive circuit of injector solenoid valve was designed for high pressure common rail diesel engine, and simulation model of drive circuit was build with full use of Multisim. Through the simulation of that model and the practical application of the circuit, the results of comparison show that the design of injector solenoid valve drive circuit is reliable and can meet the working demands of high pressure common rail diesel engine, which provides a theoretical basis and practical application for hardware design of high pressure common rail diesel engine control unit.