新型馈能型悬架及其工作原理

为回收汽车悬架间被减振器消耗的振动能量，提出一种集减振与回收振动能量功能于一体的新型馈能型悬架，并研究该新型馈能型悬架的工作原理。首先对馈能型悬架的关键部件——馈能装置的力学特性进行理论分析与试验测定。通过解析馈能装置作用在簧载质量上的馈能阻尼力得知：馈能装置的力学特性由其结构确定的粘性阻尼参数和类似库伦阻尼参数体现。进而建立馈能型悬架的动力学模型，并在汽车以72 km/h的速度行驶于C级路面的随机输入条件下对其进行数值仿真。仿真结果显示：馈能型悬架吸收发动机的平均功率略小于被动悬架，但有高达84%的吸收功率被馈能装置回收；馈能型悬架的使用性能也明显优于被动悬架，说明使用馈能型悬架来改善汽车的行驶平顺性和燃油经济性在理论上是可行的。

NEW RECLAIMING ENERGY SUSPENSION AND ITS WORKING PRINCIPLE

In order to reclaim vibration energy dissipated by damper in automobile suspension, a new reclaiming energy suspension able to reduce vibration and reclaim vibration en- ergy is firstly presented and its working principle is researched. Mechanical behavior of hydraulic reclaiming energy device, the key component of reclaiming energy suspension, is studied according to hydraulic theory and tested, and that mechanical behavior of the device is embodied by a viscidity damping parameter and an analogous Coulomb damping parameter from analyzing the reclaiming energy force the device puts on sprung mass. Reclaiming energy suspension's dynamics model and simulation under the condition that automobile is running on class C road surface in a 72 km/h velocity are studied. The simulation resluts show that power from engine drawn by re- claiming energy suspension is less than the one by traditional passive suspension slightly, 84% of power from engine is re- claimed by the reclaiming energy device, and automobile riding comfort of reclaiming energy suspension is obviously better than the one of passive suspension. So to use reclaiming energy suspension to improve automobile riding comfort and fuel economic is feasible theoretically.