发动机过渡工况特性仿真的研究

Study on Engine 's Characteristic Simulation under Transitional Working Mode

为了更好的反映发动机的实际工作特性,建立数学模型时考虑了油门开度,并对发动机变油门的情况进行了研究;结合扭矩曲面和整车动力学方程,采用微区间逼近法确定了发动机变油门过程仿真方法。

The throttle opening is considered as an essential factor to build the model for reflecting the actual working performance of engine. The situation of the throttle opening change is studied, and a simulation method is given to use torque curved surface and vehicle dynamics equation on base of differential approach method.