It is known that good curving performance and stability often have conflicting requirements given a passive yaw stiffness of the wheelset. Using an active steering system, however, has the potential to realize improved curving performance with a satisfactory running stability. Relatively simple active control solutions of yaw relaxation and yaw compensation are illustrated and compared in this paper. In both control solutions, only low-cost electromechanical actuators and load cells are adopted for low-frequency actuations. Associated with a prototype of the two-axle vehicle, the dynamic performances of yaw relaxation and yaw compensation controls for different yaw stiffness configurations are simulated. The homogenous simulation results demonstrate excellent dynamic performance in curve negotiation and stability with the active steering strategies adopted.

众所周知，鉴于轮对的被动偏航刚度，良好的弯曲性能和稳定性经常有相互矛盾的要求。然而，使用主动转向系统具有实现令人满意的行驶稳定性的改善的弯曲性能的潜力。本文阐述并比较了偏航松弛和偏航补偿的相对简单的主动控制解。在这两种控制解决方案中，低频致动仅采用低成本的机电致动器和称重传感器。与两轴车辆的原型相关联，模拟了针对不同偏航刚度配置的偏航松弛和偏航补偿控制的动态性能。