基于主动悬架控制轮边驱动电动车垂向振动研究

Vertical vibration of in-wheel motor electric vehicles based on active suspension control

针对轮边驱动电动车存在的轮毂电机振动问题,以开关磁阻电机(SRM)为例,分析了电机垂向激励对车辆性能的影响。探讨分析不同车速工况下路面和电机两种耦合激励对轮边驱动电动车垂向动力学特性的影响。研究表明,电机激励对车辆垂向性能的影响主要集中在低车速范围。此时,电机激励频率接近悬架系统固有频率,容易引发车辆共振。鉴于电机激励具有的周期性特点,提出了基于FxLMS算法的主动悬架控制方法,进而抑制电机垂向激励产生的车辆垂向振动负效应,仿真分析验证了算法的有效性。

Aiming at the hub motor ^ s vibration problem of an in-wheel motor electric vehicle （ IWM-EV ） , the switched reluctance motor （ SRM ） was taken as an example, the effects of the motor ^ s vertical excitation on the dynamic performance of the vehicle were analyzed. Under conditions of different vehicle speeds, the effects of the coupling between road surface excitation and the motor, s one on the vertical dynamic performance of the vehicle were explored. The study results showed that the effects of the motor, s excitation on the vehicle, s vertical dynamic performance are concentrated in a lower speed range. Due to the periodic feature of SRM excitation, the active suspension control method based on the FxLMS algorithm was proposed to suppress the vehicle,s vertical vibration responses excited by SRM excitation. The simulation results verified the effectiveness of this method.