An Application of Real-Time Engine Model in HILS Simulation and Testing Platform Based on SIMULINK

Engine model is one of the most important part in HILS for ECU testing. There are shortages in normal ones, such as big framework and complex structure of software design which result in the immense calculated amount, disadvantage of hardware drive ability and bad real-time as well. In this article, the strong simulation function of MATLAB/SIMULINK was used. Engine model was built based on the mean value model, parameters involved was recognized. The comparison between simulation and bench test validation shows that the engine model could simulate at all working condition. The relative error of test result is less than ±3% in steady operating conditions, and ±6% in transient operating conditions. Which meets the demand of the application for HILS.