车辆EHA馈能式半主动悬架联合仿真研究

new kind of vehicle semi-active suspension was put forward based on Electro-Hydrostatic Actuator (EHA ) in the field of aerospace. According to the analysis of EHA principle and vehicle structure, the models of semi-active suspension with EHA are established by using AMEsim software. Fuzzy Controller for EHA semi-active suspension was designed. The proposed control algorithm was integrated with the AMEsim vehicle model and the co-simulations was performed. The results show that semi-active vehicle suspension with EHA using fuzzy control is effective under different frequency road and vehicle body acceleration, suspension dynamic deflection and tyre dynamic load are evidently reduced, so that ride comfort, handling and stability of vehicle are improved. At the same time, energy feedback can be achieved.