主被动一体悬架构型的多目标粒子群最优控制  

Multi-objective particle swarm optimization linear quadratic regulator controller base on integrated suspension

作　　者：胡一明[1] 李以农[1,2] 李哲[1] 杨超[1] HU Yi-ming;LI Yi-nong;LI Zhe;YANG Chao(College of Automotive Engineering,Chongqing University,Chongqing 400030,China;State Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing 400030,China)

机构地区：[1]重庆大学汽车工程学院,重庆400030 [2]重庆大学机械传动国家重点实验室,重庆400030

出　　处：《控制理论与应用》2020年第3期574-583,共10页Control Theory & Applications

基　　金：重庆市基础研究与前沿探索项目(CSTC2018JCYJAX0630);国家重点研发计划子课题(2017YFB0102603-3)资助.

摘　　要：为了解决轮毂电机电动汽车中轮毂电机导致的振动负效应问题,提出了将动态减振与主动悬架结合的悬架新构型方案.针对新构型中结构及控制参数复杂的特点,建立了能够表征平顺性、操稳性以及悬架作动效率的11自由度整车动力学模型.设计基于新构型的多目标粒子群线性二次最优(MOPSO–LQR)控制器.对模型进行仿真分析,仿真结果表明,新构型方案能够实现车辆平顺性、操稳性以及悬架效率的全局最优,对比传统轮毂电机悬架构型方案,在解决轮毂电机振动负效应问题上有良好的效果.In order to deal with the vibration negative effects caused by in-wheel motor in electric vehicle, a novel suspension configuration was proposed based on dynamic damping and active suspension. With the issues of complicated parameters in new suspension configuration and its control, an 11-degree-of-freedom vehicle dynamic model was established to reveal the indexes of smoothness, stability and the dynamic efficiency of suspension. Multi-objective particle swarm optimization linear quadratic regulator(MOPSO–LQR) controller is proposed for the new configuration. The simulation was demonstrated, and the results indicated that the proposed suspension configuration could achieve global optimum on smoothness, stability and dynamic efficiency of suspension, simultaneously, the new suspension configuration had better inhibition on vibration negative effects of in-wheel motor than conventional suspension.

关 键 词：电动汽车 轮毂电机 主被动一体悬架构型 MOPSO–LQR控制 

分 类 号：U469.72[机械工程—车辆工程]