To overcome vertical vibration negative effects induced by high unsprung mass of the existing IWM, a novel integrated IWM topology scheme is developed. This scheme aims for the integrated design of hub, rotor housing and brake disk, and the stator is considered as a DVA, which is flexibly isolated from the unsprung system by the suspension elastic sleeve. Primarily, the quarter-vehicle dynamic model with the DVA-based electric wheel is established, and the improved vibration transmission characteristics of the integrated IWM are clarified in the frequency domain. Then, according to the sensitivity analysis theory, the sensitivity of the vertical dynamic response to the association structural parameters such as stator mass, stiffness and damping of rubber bushing and bearing is discussed. On this basis, the MCO of the association structural parameters is carried out by using the adaptive weighted PSO and FEM. After optimization and treatment, the overall mass of stator decreases by 9.35% when the structure strength is satisfied, the vertical dynamic characteristics of the integrated IWM system have been improved to varying degrees; particularly, the motor MGD gets more than 20% improvement. The results demonstrate that the proposed integrated scheme can observably improve the vehicle vertical dynamics and simultaneously the DVA system exhibits excellent performance in terms of wheel and motor vibration suppression.

为了克服现有IWM的高簧载质量引起的垂直振动负面影响，开发了一种新颖的集成IWM拓扑方案。该方案旨在轮毂，转子壳体和制动盘的集成设计，并且定子被视为DVA，其通过悬架弹性套筒与未悬挂系统灵活地隔离。首先，建立了基于DVA的电动车轮的四分之一车辆动力学模型，并在频域上阐明了集成IWM的改进的振动传递特性。然后，根据灵敏度分析理论，讨论了垂直动态响应对相关结构参数（如定子质量，橡胶衬套和轴承的刚度和阻尼）的敏感性。在此基础上，关联结构参数的MCO通过使用自适应加权PSO和FEM进行。经过优化和处理，满足结构强度后，定子总质量降低了9.35％，集成式IWM系统的垂直动态特性得到了不同程度的改善；特别是，马达MGD的改进超过20％。结果表明，所提出的集成方案可以明显改善车辆的垂直动力学特性，同时DVA系统在抑制车轮和电机振动方面表现出出色的性能。集成IWM系统的垂直动态特性已得到不同程度的改善。特别是，马达MGD的改进超过20％。结果表明，所提出的集成方案可以明显改善车辆的垂直动力学性能，同时DVA系统在抑制车轮和电机振动方面表现出出色的性能。集成IWM系统的垂直动态特性已得到不同程度的改善。特别是，马达MGD的改进超过20％。结果表明，所提出的集成方案可以明显改善车辆的垂直动力学性能，同时DVA系统在抑制车轮和电机振动方面表现出出色的性能。