为了提高发动机电控系统的开发效率，降低开发成本，依据发动机的工作原理，利用MATLAB/SIMULINK工具建立汽油机的计算机仿真模型，并通过必要的验证，证明了该模型能有效的反映节气门开度与负载的变化。-In order to improve engine control system development efficiency and reduce development costs, according to the engine works, the use of MATLAB/SIMULINK tool to create a computer simulation model of gasoline, and adopt the necessary verification to prove that the model can effectively reflect the degree of throttle opening and load changes.