Permanent magnet slip coupling (PMSC) is a kind of contactless transmission device with the advantages of clutch function, continuous speed regulation and no mechanical wear. The PMSC was introduced into the hydraulic power steering system (HPS) to regulate the steering pump speed so as to improvethe steering stability and reduce the energy consumption. To evaluate the designed PMSC electromagnetic characteristics and dynamic characteristics of the PMSC were investigated and verified. Two-dimensional finite element model of the PMSC was built to investigate the electromagnetic characteristics. The simulation results of induced electromotive force, induced current and electromagnetic torque demonstrated that the PMSC had excellent electromagnetic characteristics. The speed regulation circuit of the PMSC was developed to investigate the dynamic characteristics. The results indicated that the PMSC had excellent dynamic characteristics under the condition of high load, inferior dynamic characteristics under the condition of low load. The bench tests were carried out to verify electromagnetic characteristics and dynamic characteristics of the PMSC. It can be seen that the test results of the induced electromotive force and output speed of the PMSC were in consistent with the simulation results. The real vehicle tests were conducted and the results demonstrated that the permanent magnet coupling based electronically controlled hydraulic power steering system (P-ECHPS) greatly improved low-speed steering maneuverability and high-speed steering stability of heavy-duty vehicles.

中文翻译：

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液压动力转向应用永磁滑环联轴器的特性研究与验证

永磁滑动联轴器（PMSC）是一种具有离合器功能，连续调速，无机械磨损的非接触式传动装置。PMSC被引入到液压助力转向系统（HPS）中，以调节转向泵的转速，从而提高转向稳定性并降低能耗。为了评估设计的PMSC，对PMSC的电磁特性和动态特性进行了研究和验证。建立了PMSC的二维有限元模型，以研究其电磁特性。感应电动势，感应电流和电磁转矩的仿真结果表明，PMSC具有优良的电磁特性。开发了PMSC的调速电路以研究其动态特性。结果表明，PMSC在高负荷条件下具有良好的动态特性，在低负荷条件下具有较差的动态特性。进行了基准测试，以验证PMSC的电磁特性和动态特性。可以看出，PMSC的感应电动势和输出速度的测试结果与仿真结果一致。进行了实际车辆测试，结果表明，基于永磁耦合的电控液压助力转向系统（P-ECHPS）大大改善了重型车辆的低速转向操纵性和高速转向稳定性。结果表明，PMSC在高负荷条件下具有良好的动态特性，在低负荷条件下具有较差的动态特性。进行了基准测试，以验证PMSC的电磁特性和动态特性。可以看出，PMSC的感应电动势和输出速度的测试结果与仿真结果一致。进行了实际的车辆测试，结果表明基于永磁耦合的电子控制液压动力转向系统（P-ECHPS）极大地改善了重型车辆的低速转向操纵性和高速转向稳定性。结果表明，PMSC在高负荷条件下具有良好的动态特性，在低负荷条件下具有较差的动态特性。进行了基准测试，以验证PMSC的电磁特性和动态特性。可以看出，PMSC的感应电动势和输出速度的测试结果与仿真结果一致。进行了实际车辆测试，结果表明，基于永磁耦合的电控液压助力转向系统（P-ECHPS）大大改善了重型车辆的低速转向操纵性和高速转向稳定性。低负荷条件下的动态特性较差。进行了基准测试，以验证PMSC的电磁特性和动态特性。可以看出，PMSC的感应电动势和输出速度的测试结果与仿真结果一致。进行了实际的车辆测试，结果表明基于永磁耦合的电子控制液压动力转向系统（P-ECHPS）极大地改善了重型车辆的低速转向操纵性和高速转向稳定性。低负荷条件下的动态特性较差。进行了基准测试，以验证PMSC的电磁特性和动态特性。可以看出，PMSC的感应电动势和输出速度的测试结果与仿真结果一致。进行了实际车辆测试，结果表明，基于永磁耦合的电控液压助力转向系统（P-ECHPS）大大改善了重型车辆的低速转向操纵性和高速转向稳定性。可以看出，PMSC的感应电动势和输出速度的测试结果与仿真结果一致。进行了实际车辆测试，结果表明，基于永磁耦合的电控液压助力转向系统（P-ECHPS）大大改善了重型车辆的低速转向操纵性和高速转向稳定性。可以看出，PMSC的感应电动势和输出速度的测试结果与仿真结果一致。进行了实际车辆测试，结果表明，基于永磁耦合的电控液压助力转向系统（P-ECHPS）大大改善了重型车辆的低速转向操纵性和高速转向稳定性。