Potential energy is wasted from vehicle vibration caused by road roughness. The suspension system absorbs vibration and dissipates energy in the form of heat. The dissipated energy can be recaptured into useful energy to enhance electric vehicles efficiency. This paper proposes a dual-mass unidirectional shock absorber with a piezoelectric harvester to assess the potential power that can be harvested from vibration. The regenerative suspension can be divided into two parts: transmission module and conversion module. The components of the transmission model are rack and pinion, bevel gears, planetary gearbox, shaft, and overrunning clutch that make the harvester rotates in one direction. The conventional electromagnetic model is replaced by a conversion model that consists of piezoelectric plates that are excited by magnetic forces induced by rectangular magnetic plates that are uniformly placed on an internal ring rotator and concentric external ring stator. A mathematical model is built to describe the process and calculate the power output resulting from the piezoelectric plates. The theoretical results illustrate a root mean square of output power of 16 W and 242 W can be achieved with a ring radius of 0.05 m with vehicle speed 120 km/h on good road condition and poor road condition, respectively.

由于路面不平整，车辆振动会浪费潜在的能量。悬架系统吸收振动并以热能形式耗散能量。可以将耗散的能量重新捕获为有用的能量，以提高电动汽车的效率。本文提出了一种带有压电采集器的双质量单向减震器，以评估可以从振动中采集的潜在功率。再生悬挂系统可分为两部分：传动模块和转换模块。变速箱模型的组件包括齿条和小齿轮，锥齿轮，行星齿轮箱，轴和超越离合器，它们使收割机沿一个方向旋转。常规的电磁模型由转换模型代替，该转换模型由压电板组成，压电板由矩形磁板感应的磁力激励，这些矩形磁板均匀地放置在内圈转子和同心外圈定子上。建立一个数学模型来描述该过程并计算从压电板得到的功率输出。理论结果表明，在良好的道路条件下和较差的道路条件下，在车辆行驶速度为120 km / h的情况下，以0.05 m的环形半径可以分别获得16 W和242 W的输出功率的均方根。建立一个数学模型来描述该过程并计算从压电板得到的功率输出。理论结果表明，在良好的道路条件下和较差的道路条件下，在车辆行驶速度为120 km / h的情况下，以0.05 m的环形半径可以分别获得16 W和242 W的输出功率均方根。建立一个数学模型来描述该过程并计算从压电板得到的功率输出。理论结果表明，在良好的道路条件下和较差的道路条件下，在车辆行驶速度为120 km / h的情况下，以0.05 m的环形半径可以分别获得16 W和242 W的输出功率均方根。