Fault Simulation and Function Verification of the Aero-engine Control System Based on Hardware in Loop

HIL test is an important part in the development of the aero-engine control system. In order to meet the engineering requirements, how to establish the real-time fault simulation models of the control system is an essential problem for HIL. This paper proposes a simulation model with general architecture based on the Simulink platform of the HIL system, which can realize the function of fault simulation. The EEC sends out warning or fault signals according to the detected information, so as to verify the correctness of the EEC control strategy and fault diagnosis function. In this paper, the frequent faults in the engine control system are simulated and verified, which can guide the design and test of the control strategy.