Abstract: The simulation method and parameter optimization technique of control system for a type of engine which is practically used are presented. ZFX software package is used for simulation of the engine control system and SUMT is used for optimization of the parameters of the controller. The variable fuel supply rule being optimized in the dynamic process is able to reduce the level of overheat before the entrance of turbine of engine and to weaken the frequencies of oscillation. The result shows that the operating life can be prolonged by this measure. The research may also be used for reference as the engine is tested.

Key words: engine control system simulation, parameter optimization