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磁流变阻尼器驱动的智能车辆悬挂控制及实验

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Keywords: 磁流变阻尼器,半主动控制,车辆悬挂,硬件在环仿真测试

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Abstract:

针对由新型的磁流变阻尼器驱动的智能车辆悬挂设计要求,提出了一种基于天棚阻尼律实现不对称阻尼特性的半主动控制方案,能有效地抑制驱动电流的“开-关”冲击特性和磁流变阻尼器滞环特性产生的不良影响.将该控制器与四分之一车辆模型相结合,在变幅度谐波、平滑脉冲和随机信号激励下,对该半主动控制器的性能进行了仿真分析,并通过设计的硬件在环测试系统进行了系统的实验研究.结果验证了所提出的智能车辆悬挂设计能理想地实现车辆驾乘舒适性、与路面可靠接触、悬挂空间等多目标悬挂性能,以及对簧载质量变化的鲁棒特性.

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