Academic analysis and simulation calculation about starting characteristic of motor generator system in low voltage were carried through.

针对电动机—发电机系统在低网压下的启动特性进行了理论分析和模拟计算。

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Then, starting with the concept of information entropy and analysis about cross method for rare event simulation, this thesis introduces the basic idea of cross entropy optimization method.

接着从信息熵的概念谈起，通过对小概率事件仿真方法的分析，引出交叉熵优化方法的思想。

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Important function is played by identification of engine no-load mode in simulation of power transmission system, starting and automatic shifting control of motor vehicle.

发动机空载工况的辨识在车辆动力传动系统仿真和车辆的起步、换档自动控制中起着重要的作用。

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