Vehicle power steering systems control direction and flow of pressure oil with servo valves, then transfer angular inputs from steering wheels to corner angular outputs of road wheels.

车辆液压动力转向系统通过伺服阀控制压力油的方向和流量，把转向盘输入的转角信号转变为车轮的偏转角度输出。

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Based on predecessor's work, we have modified the mathematical model for leakage flow in power steering pump.

在前人研究工作的基础上，建立了转向泵漏油流量的数学模型。

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The control strategy for electronic power steering is stated, and the control strategy flow chart is given, and functions and realization methods of each control modulus are analyzed.

阐述了电动助力转向的控制策略，给出了控制策略框图，并分析了各个控制模块的功能以及实现方法。

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