吉林大学学报(工学版) ›› 2021, Vol. 51 ›› Issue (4): 1230-1240.doi: 10.13229/j.cnki.jdxbgxb20200642
• 车辆工程·机械工程 • 上一篇
Jiang-qi LONG1(),Jin-tao XIANG1,Ping YU1(),Jun-cheng WANG2
摘要:
基于参考天棚模型主动悬架中存在力的非线性特性、参数不确定以及执行器非理想性等问题,为了削弱这些问题对控制效果的影响,提出一种用于估计非线性参量以及参数不确定、非理想执行器所引起的不确定量的线性干扰观测器,结合滑模控制建立了带有干扰观测器的控制系统;分析了天棚阻尼系数和不确定量对主动悬架控制效果的影响,给出了最优天棚阻尼的选取方法,验证了干扰观测器的有效性;最后,仿真模拟了所提出的控制算法在凸块以及C级路面行驶工况下的控制效果,结果显示:相比于传统没有观测器的基于参考天棚模型的滑模控制,所设计的含有观测器的基于参考天棚模型滑模控制算法在舒适性、稳定性以及安全性方面都有所提升。
中图分类号:
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