Application of the computer simulation technique to developing EFI engine

The application of computer simulation technique to electronic-controlled fuel injection (EFI) engine was studied to increase the development speed and improve the overall performance of the engine and car. On the basis of an EFI system developed by ourselves, the simulation model of the initial control data and engine operation points during a driving cycle and the car performance prediction model were established. This method was applied to a mini-car. The experiment shows that the simulated control data has good accuracy; and the engine test points and car performances obtained by simulation are useful for the matching of EFI system with gasoline engine and the development speed is increased.