The article compares the dynamic performances of the pump-controlled, valve-controlled and prime-mover controlled hydromotor drive systems for a wide range of operating conditions. The control strategy adopted for each of them varies the supply flow to the hydromotor that gives the regulated drive speed. In this respect, the Simscape models are developed for the said systems that are validated experimentally. On the basis of response time, overshoot, and steady-state error obtained from the simulation and test results, it is found that the valve controlled hydromotor drive system is more sensitive than the others; whereas, the load-sensing pump control requires more time to settle but has less overshoot.

本文比较了泵控制、阀门控制和原动机控制的液压马达驱动系统在各种运行条件下的动态性能。它们中的每一个采用的控制策略都会改变液压马达的供应流量，从而提供调节的驱动速度。在这方面，为上述系统开发了 Simscape 模型，并经过实验验证。根据仿真和测试结果得出的响应时间、超调量和稳态误差，发现阀控液压马达驱动系统比其他驱动系统更灵敏；而负载感应泵控制需要更多时间来稳定，但过冲较小。