The Research of Drive Control on High-Pressure Common Rail Injector Electromagnetic Valve

To control injection timing and injection quantity precisely,it not only depends on the related characteristic parameter of common rail diesel solenoid valve,but also concerns with its design of driving circuit.To the solenoid valve response time,the key aspect is to design power driving model,which is designed with high voltage,strong current to control opening of solenoid and the then is conducted with low voltage,low current PWM.The experiment showed that the model is satisfied with the requirements of driving of solenoid valve for common rail oil injector.