Status and Trend on Electronic Control for Fuel Injection System of Diesel Engine

This paper introduces the construction, the principles and the characteristics of two kinds of typical electronic control for the fuel injection system of diesel engine. In order to meet increasingly strict emission regulations, the high injection pressure, the electronically controlled accumulator type unit injector,the piezoelectricity crystal injector, the high injection pressure system of the highly flexible modulation etc. were used in abroad. Through analyzes the characteristics of the new technology,induce the development direction of electronic control for fuel injection system of diesel engines,that higher injection pressure, faster response velocity,many times injection, exactitude control,highly flexilble modulation and lower consumption of energy are useful.