由于磁流变减振器具有响应快、阻尼力大、能量需求小、结构简单等优点，因而，在车辆悬架系统上得到了广泛的应用，但它需要外部电源供电，如果能把车辆行驶过程中由路面不平引起的振动能量加以回收再利用，不仅可以给磁流变减振器供电，而且可以把多余的电能提供给其它耗电元件使用。因此，设计了一种结构较为简单的馈能式磁流变减振器，通过理论仿真分析与台架试验相结合的方法对该馈能悬架特性进行了研究。 在分析磁流变减振器与直线电磁馈能装置工作原理基础上，提出了馈能式磁流变半主动悬架结构，并建立了随机路面输入模型、二自由度悬架系统动力学模型、磁流变减振器改进型多项式模型与直线电磁馈能装置馈能模型。成功试制了馈能式磁流变半主动悬架物理样机，并进行了馈能式磁流变半主动悬架特性试验，利用特性试验数据，通过Matlab软件多项式拟合工具箱Cftool，对磁流变减振器改进型多项式模型进行了参数辨识；设计了模糊控制器，并进行了模糊控制下馈能式磁流变半主动悬架系统的动态性能试验；针对馈能潜力进行了馈能功率与馈能效率的对比仿真分析，并对能量回收系统各模块进行了电路设计与模块选型。最后，开展了能量回收试验，并做了详细的分析。 仿真结果表明，在车速60 km/h、C级路面工况激励输入下，基于模糊控制的馈能式磁流变半主动悬架与被动悬架相比，簧载质量加速度减少26.30%，悬架动挠度减少19.86%，轮胎动载荷减少22.64%，馈能效率维持在28.5%左右，不仅改善了车辆的减振性能，而且实现了振动能量的高效回收。试验结果表明，在随机路面激励输入下，簧载质量加速度下降26.3%左右，复合储装置端电压与回收能量值随着频率与幅值的增大而增大，但受幅值影响较大，从而进一步验证了所设计的馈能式磁流变半主动悬架的可行性与控制效果。

As the magneto-rheological damper has the features of fast response,large force ,small energy demand and simple structure.Thus, it has been widely used in the system of vehicle suspension.However,it requies external power supply.Recycling,storing and using the vibration energy caused by the bumpy road when car-driving, not only can supply power to magneto-rheological damper, but also store the excess energy through the energy storage device and supply to other power components.So a simple structure of the energy-regenerative type magneto-rheological damping damper was designed, and study it by using the method of theoretical simulation and bench test. Based on the analysis of the working principle of magneto-rheological damper and linear electro-magnetic regenerative device,the structure of energy-regenerative type magneto-rheological semi-active suspension is proposed,and the random road surface input model, two-degree of freedom suspension system dynamic model, magneto-rheological damper improved polynomial model and energy-regenerative model of linear electromagnetic energy-regenerative device are established.The physical prototype of the energy-regenerative type magneto-rheological semi-active suspension was successfully developed.And also the characteristic test of the magneto-rheological semi-active suspension is done, and the parameters of polynomial model of improved magneto-rheological damper by using the Matlab software polynomial fitting toolbox Cftool are analyzed .A fuzzy controller is designed, and the dynamic performance test of the magneto-rheological semi-active suspension is carried out under the fuzzy control.The energy power and efficiency of the energy recovery system are simulated and analyzed to the potential energy, and the circuit design and module selection of the energy recovery system are carried out.Finally,the energy recovery test was carried out ,and the detailed analysis is made. The simulation results show that the speed of 60 km/h and C grade road condition excitation,the acceleration of the sprung mass reduces 26.30%, the suspension deflection reduces 19.86%, the dynamic load of tire reduces 22.64% and the energy-regenerative efficiency keeps in 28.5% when comparing the energy-regenerative type magneto-rheological semi-active suspension with the passive suspension,which not only to improve the vibration performance of vehicle,but also realize the efficient recovery of vibration energy.The test results show that the acceleration of the sprung mass reduces 26.3% under the excitation of the random road surface.The voltage in composite storage device and the recovery energy value increase with the increase of frequency and amplitude,which further verifies the feasibility and control effect of the designed energy-regenerative type magneto-rheological semi-active suspension.