Abstract:

This paper gives an introduction to the electronic fuel injection control system,discusses the working circuit and control theory of electronic control unit (ECU),sensors and actuators,and analyzes fuel injection quantity control strategy and fuel injection timing control method under different conditions of gasoline engine.The paper also designs the electronic fuel injection control system,including the account of rotate speed of engine,the control of injecting fuel signal and the control of injection volume.

Key words: electronic fuel injection system;electronic control unit;sensor;injection volume