EHA汽车主动悬架控制技术研究

Control Research on Vehicle Active Suspension with EHA

将目前航空航天领域先进的EHA(Electro-Hydrostatic Actuator)作动技术引入汽车主动悬架控制结构中。设计了模糊控制以及参数自调整模糊控制算法,并进行了基于EHA主动悬架的参数自调整模糊控制仿真分析,证明了该算法对悬架系统的振动控制具有较好的效果。在所研制开发的两自由度悬架系统试验台架上进行了试验研究,结果表明,与被动悬架系统相比,自调整模糊控制EHA主动悬架系统控制效果显著。

EHA（Electro-Hydrostatic Actuator）technology in the aerospace field is introduced into vehicle active suspension. In addition, fuzzy control and self-adaptive fuzzy control algorithms for active suspension are designed. The simulation analyses are done and the effects of self-adaptive fuzzy control are proved. Physical prototype of active suspension and test system are developed. Finally, bench tests of active suspension are carried out under the inputs of simulation road. The experimental results with the similarity of simulation results show that self-adaptive fuzzy control strategy is feasible. Simulation and experimental results also show that the vibration of vehicle system is well controlled through EHA active suspension.