A self-powered electromagnetic vibration suppression and absorption system integrated with a magnetorheological damper and a linear motor is designed to attenuate the negative effect of vertical vibration caused by the increased unsprung mass for in-wheel motor electric vehicles in this article. The magnetorheological damper is used as a suspension damper to suppress body vibration, and linear motor is used as a dynamic vibration absorber, namely, linear electromagnetic dynamic vibration absorber, to absorb tire vibration, and regenerates the vibration power to drive the magnetorheological damper, realizing self-power. Based on power flow theory, the power transfer mechanism of the vertical vibration for in-wheel motor electric vehicles and the regeneration potential are analyzed. The negative effect on the dynamic performance of in-wheel motor electric vehicles is analyzed through the root mean square of dynamic responses. Moreover, the specific structure scheme of the self-powered electromagnetic vibration suppression and absorption system is provided. The influence of system mass, stiffness, and damping of the linear electromagnetic dynamic vibration absorber on the dynamic performance is analyzed, and these parameters are optimized by particle swarm optimization. Simulation results show that in comparison with a passive damper, the self-powered electromagnetic vibration suppression and absorption system can reduce the body acceleration by 17.05%, which is better than the magnetorheological damper (10.08%). The self-powered electromagnetic vibration suppression and absorption system increases the tire dynamic load by 5.62%, but it is 8.68% less than the magnetorheological damper. Additionally, the regenerated power can offset the consumed power adequately to realize self-power. Finally, a bench test is conducted to verify the effectiveness and feasibility of the self-powered electromagnetic vibration suppression and absorption system.

本文设计了一种集成了磁流变阻尼器和线性电动机的自供电式电磁振动抑制和吸收系统，以减轻轮毂电动汽车的簧下质量增加所引起的垂直振动的负面影响。磁流变减振器用作悬架阻尼器以抑制车身振动，而线性电动机用作动态减振器，即线性电磁动态减振器，以吸收轮胎振动，并再生振动功率来驱动磁流变减振器，从而实现自我力量。基于潮流理论，分析了轮毂电动汽车垂直振动的动力传递机理和再生潜力。通过动态响应的均方根分析了对轮毂电动汽车动力性能的负面影响。此外，提供了自供电电磁振动抑制吸收系统的具体结构方案。分析了线性电磁动态吸振器的系统质量，刚度和阻尼对动态性能的影响，并通过粒子群算法对这些参数进行了优化。仿真结果表明，与无源阻尼器相比，自供电式电磁振动抑制吸收系统可将人体加速度降低17.05％，优于磁流变阻尼器（10.08％）。自供电的电磁振动抑制和吸收系统使轮胎动态载荷增加了5倍。62％，但比磁流变阻尼器低8.68％。另外，再生功率可以充分抵消所消耗的功率以实现自功率。最后，进行了台架试验，以验证自供电电磁振动抑制和吸收系统的有效性和可行性。