Considering the negative vertical dynamics effect of switched reluctance motor on an in-wheel motor driving system, this article presents a modeling and suppression method for unbalanced radial force of the in-wheel motor driving system. To tease out the coupling relationship within the in-wheel motor driving system, this investigation, respectively, explores the principle of unbalanced radial force and the coupling relationship between rotor eccentricity and road excitation based on the suspension response model with unbalanced radial force under road excitation. The switched reluctance motor nonlinear analytical model was fitted by the Fourier series, and its radial electromagnetic force was modeled and analyzed by the Maxwell stress tensor method. To mitigate the influence of radial electromagnetic force fluctuation and unbalanced radial force amplitude value under eccentricity condition on the in-wheel motor driving system, the elitist non-dominated sorting genetic algorithm was adopted to improve radial electromagnetic force fluctuation and unbalanced radial force amplitude value of the switched reluctance motor. The simulation results show that the proposed optimization method can suppress the radial electromagnetic force fluctuation and unbalanced radial force amplitude value, and the negative effect of vertical dynamics of the in-wheel motor driving system is conspicuously mitigated.

考虑到开关磁阻电机对轮毂电机驱动系统的垂直动力学负效应，提出了一种轮毂电机驱动系统径向不平衡力的建模与抑制方法。为梳理轮毂电机驱动系统内部的耦合关系，本研究基于道路激励下径向力不平衡的悬架响应模型，分别探讨了径向力不平衡的原理和转子偏心与道路激励的耦合关系。 . 开关磁阻电机非线性分析模型采用傅里叶级数拟合，其径向电磁力采用麦克斯韦应力张量法建模分析。为减轻偏心情况下径向电磁力波动和不平衡径向力幅值对轮毂电机驱动系统的影响，采用精英非支配排序遗传算法改善轮毂电机驱动系统的径向电磁力波动和不平衡径向力幅值。开关磁阻电机。仿真结果表明，所提出的优化方法能够抑制径向电磁力波动和径向力幅值不平衡，显着减轻轮毂电机驱动系统垂直动力学的负面影响。采用精英非支配排序遗传算法改善开关磁阻电机径向电磁力波动和不平衡径向力幅值。仿真结果表明，所提出的优化方法能够抑制径向电磁力波动和径向力幅值不平衡，显着减轻轮毂电机驱动系统垂直动力学的负面影响。采用精英非支配排序遗传算法改善开关磁阻电机径向电磁力波动和不平衡径向力幅值。仿真结果表明，所提出的优化方法能够抑制径向电磁力波动和径向力幅值不平衡，显着减轻轮毂电机驱动系统垂直动力学的负面影响。