摘要
首先建立了半车模型主动悬架系统的动力学模型,然后以车身质心垂向加速度、车身俯仰角加速度为控制对象设计了主动悬架系统控制器。在Simulink中建立相应的仿真系统模型和控制器模型,并对主动悬架控制系统进行仿真。将仿真结果与被动悬架系统和以前、后车身垂向加速度为控制对象的主动悬架控制系统的仿真结果进行对比分析,结果表明,该主动悬架控制可极大地抑制车身振动、车身俯仰变化,明显改善了车辆行驶的平顺性。
Based on the dynamic model of the active suspension system of the half vehicle model,it designs a kind of controller for vertical acceleration of the vehicle body and pitching angle acceleration of the vehicle body in active suspension system.It builds the corresponding simulation system model and controller model in Simulink,obtains the control system of active suspension.The simulation results are compared with the simulation results of passive suspension system and active suspension control system and targeted at vertical acceleration of the front and rear vehicle body.The results show that the control strategy of active suspension proposed in this paper greatly suppresses body vibration,body pitch changes,and improves vehicle ride comfort.
作者
李振兴
LI Zhenxing(School of Automotive,Tianjin Vocational Institute,Tianjin,300410,China)
出处
《机械设计与制造工程》
2018年第4期66-69,共4页
Machine Design and Manufacturing Engineering
基金
天津职业大学科学研究基金资助项目(20141103)
