电控减振器悬架NSGA-Ⅱ算法天地棚混合控制策略  

NSGA-ⅡAlgorithm Hybrid Control Strategy for Electronic Control Shock Absorber Suspension in Skyroof

作　　者：何浦 魏文智 孙京哲 严天一[2] HE Pu;WEI Wenzhi;SUN Jingzhe;YAN Tianyi(XGM Co.Ltd.Shanghai B ranch,Shanghai 201799,China;College of Mechanical and Electrical Engineering,Qingdao University,Qingdao 266071,China)

机构地区：[1]西格迈股份有限公司上海分公司,上海闵行区201799 [2]青岛大学机电工程学院,山东青岛266071

出　　处：《青岛大学学报（工程技术版）》2024年第3期78-85,92,共9页Journal of Qingdao University(Engineering & Technology Edition)

基　　金：山东省自然科学基金面上资助项目(ZR2016EEM49);国家自然科学基金资助项目(51475248)。

摘　　要：针对具有电控减振器(Electronic Shock Absorber, ESA)的半主动悬架系统控制策略参数设定问题,即天地棚混合控制策略阻尼及分配系数设定,提出了基于非支配排序遗传(Non-dominated Sorting Genetic Algorithms-Ⅱ, NSGA-Ⅱ)算法的天地棚混合控制策略。首先构建四分之一半主动悬架系统模型,搭建ESA正、逆模型,为解决天地棚混合控制策略中参数整定问题,通过NSGA-Ⅱ算法进行优化,在MATLAB/Simulink环境下,分别开展典型随机路面与其叠加凸块路面工况下的仿真实验;针对适应度函数得到对应帕累托解集,对不同优化侧重点进行仿真实验,与无控制被动悬架进行对比分析,验证了本算法在一定程度上对汽车行驶平顺性改善。A hybrid skyhook-groundhook control strategy based on the Non-dominated Sorting Genetic AlgorithmⅡ(NSGA-Ⅱ)is proposed to address the parameter setting issues in semi-active suspension systems with Electronic Shock Absorbers(ESA).This includes setting the damping and distribution coefficients.A quarter-car semi-active suspension system model is constructed,and ESA forward and inverse models are developed.The NSGA-Ⅱalgorithm optimizes the parameter tuning problem in the hybrid skyhook-groundhook control strategy.Simulations are conducted in MATLAB/Simulink under typical random road conditions and random road with bump conditions.The Pareto front is obtained for the fitness function.Simulations are carried out with different optimization focuses.Comparative analysis with passive suspension without control demonstrates that the proposed algorithm improves ride comfort to some extent.

关 键 词：电控减振器 半主动悬架 NSGA-Ⅱ 混合控制 

分 类 号：U463.1[机械工程—车辆工程]