基于轮胎与三维路面接触分析的车辆半主动控制研究  

RESEARCH ON VEHICLE SEMI-ACTIVE CONTROL BASED ON CONTACT ANALYSIS OF TIRE AND 3D PAVEMENT

作　　者：路永婕[1,2] 李成 怀文青 李韶华 李振宇[2] Lu Yongjie;Li Cheng;Huai Wenqing;Li Shaohua;Li Zhenyu(State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;School of Mechanical Engineering,Shijiazhuang Railway University,Shijiazhuang 050043,China)

机构地区：[1]石家庄铁道大学省部共建交通工程结构力学行为与系统安全国家重点实验室,石家庄050043 [2]石家庄铁道大学机械工程学院,石家庄050043

出　　处：《动力学与控制学报》2021年第3期60-68,共9页Journal of Dynamics and Control

基　　金：国家自然科学基金资助项目(11572207,11872255)。

摘　　要：轮胎与路面的接触关系的模拟影响着车辆悬架响应和控制的精度.在运用分形理论构建的三维路面模型基础上,建立了轮胎与路面的三维动态接触关系.针对1/4车辆悬架模型,分别搭建了被动悬架、模糊PID控制和天棚阻尼控制算法,在两种接触条件下对比了被动悬架和两种控制算法的车辆悬架垂向加速度、悬架动挠度及轮胎力的时域和频域响应情况.计算结果表明,采用模糊PID控制算法在车辆平顺性方面优于被动悬架和天棚阻尼控制算法;车辆在考虑轮胎和路面三维接触时,在面接触工况下,车身加速度、悬架动挠度及轮胎力响应的峰值都低于点接触工况.The simulation of the contact relationship between the tire and road surface affects accuracy of the vehicle's suspension response and control.A three-dimensional pavement model is constructed using fractal theory.Based on the three-dimensional road surface model,a three-dimensional dynamic contact relationship between the tire and road surface is established.Aiming at the 1/4 vehicle suspension model,passive suspension,fuzzy PID control and ceiling damping control algorithms are established,respectively.The time and frequency domain responses of the vehicle suspension vertical acceleration,suspension dynamic deflection and tire force,built by employing the passive suspension and the two control algorithms,are compared under two contact conditions.The calculation results show that the fuzzy PID control algorithm is superior to the passive suspension and ceiling damping control algorithms in terms of vehicle ride comfort.When the vehicle takes into account three-dimensional contact between the tire and road,the peak values of body acceleration,suspension deflection,and tire force response under the surface contact conditions are lower than those under the point contact conditions.

关 键 词：三维路面谱 面接触 平顺性 半主动控制 

分 类 号：U463.6[机械工程—车辆工程]