Research on Software Framework and Validation of a High-pressure Fuel Injection System

Abstract

High-pressure fuel injection system is one of the core subsystems of various kinds of power machinery, the electronic control regulation is the foundation of this system to achieve high precision and intelligent control, and the control software is the core of the system. This Paper has developed the composition and the control software framework of the high-pressure fuel system, designed the different levels of tasks and carried on the division of prioritization. In order to verify the software function and part of performance of the power machinery, we have done the control experiment of the high-pressure common rail fuel injection. The results show that it can realize the control of the fuel injection quantity by the injection pulse width through the electronic control fuel injection system, and improve the stability of rail pressure fluctuation by changing the prioritization of tasks.