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为了对磁流变半主动悬架进行控制,以改善车辆行驶的平顺性,研究了磁流变阻尼器的工作原理,根据磁流变阻尼器的工作特性,在LabVIEW中设计了磁流变半主动悬架的预瞄前馈模糊控制器,将预先得到的轴间预瞄位移信号及其变化率作为模糊控制器的输入,计算出理想的磁流变阻尼器电流控制信号,并搭建了实验装置,采用LV-LINK工具包实现第三方采集硬件与LabVIEW的通讯,从而实现硬件在环实验仿真。通过实验结果的对比来验证所设计控制方法的有效性。
In order to control the magnetorheological semi-active suspension to improve the ride comfort of vehicle, the working principle of magnetorheological damper is studied. According to the working characteristics of magnetorheological damper, The pre-sight feedforward fuzzy controller of the active suspension uses the pre-obtained axial displacement signal and its rate of change as the input of the fuzzy controller to calculate the ideal current control signal of the MR damper and sets up the experiment Device, using LV-LINK toolkit to achieve third-party acquisition of hardware and LabVIEW communication, in order to achieve the hardware in-loop experimental simulation. The comparison of experimental results to verify the effectiveness of the designed control method.