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建立了二次调节静液传动系统双闭环控制的数学模型，对系统进行了单、双闭环控制的对比研究．试验结果表明：双闭环控制较之单闭环控制具有更好的控制特性．
The mathematical model of secondary closed-loop control of hydrostatic transmission system is established, and the comparison between single-loop and double-closed loop control is carried out. The experimental results show that double closed-loop control has better control characteristics than single closed-loop control.