电动赛车半主动悬架系统仿真及实现  

Simulation and Implementation of Semi-active Suspension System for Electric Race Car

作　　者：潘军号 赵海军 李一凡 姜蕴珊 徐征[1,2] 王志强 Pan Junhao;Zhao Haijun;Li Yifan;Jiang Yunshan;Xu Zheng;Wang Zhiqiang(Tianjin University of Technology and Education,School of Automotive and Transportation,Tianjin 300222;Tianjin Donghexin Technology Co.,Ltd.,Tianjin 300350)

机构地区：[1]天津职业技术师范大学汽车与交通学院,天津300222 [2]天津动核芯科技有限公司,天津300350

出　　处：《汽车实用技术》2020年第6期24-26,49,共4页Automobile Applied Technology

基　　金：天津市高等学校大学生创新训练计划项目(201910066054,201910066082);国家自然科学基金资助项目(U1604141);新开普教育部产学合作协同育人项目(201801097003)资助。

摘　　要：应用汽车动力学理论,以1/4汽车悬架模型为研究对象,用调节减振器的阻尼系数法,建立了二自由度电动赛车的半主动悬架最优控制模型,利用编制的路面谱作为激励输入进行了仿真,并与被动悬架性能进行了对比。结果表明,半主动悬架在车身垂直振动加速度、悬架动行程、轮胎形变量的改善度分别为31.3%、21.4%、12.6%,使车身的振动被控制在某个范围之内,大大提高电动赛车在行驶过程中的平顺性。An optimal control model for semi-active suspension of a two-degree-of-freedom electric racing car is established by applying the theory of automobile dynamics,taking 1/4 car suspension model as the research object,and using the damping coefficient method of adjusting the shock absorber.Simulations were performed as stimulus inputs and compared with passive suspension performance.Results show that the semi-active suspension improves the body’s vertical vibration acceleration,suspension dynamic stroke,and tire deformation by 31.3%,21.4%,and 12.6%,respectively,so that the vibration of the body is controlled within a certain range,which greatly improves the smoothness of an electric car during driving.

关 键 词：半主动悬架 电动赛车 最优控制 平顺性 

分 类 号：U469.7[机械工程—车辆工程]