电动轮汽车对置布置磁流变减振器控制研究  

Research on Control of Opposited Magnetorheological Damper for Electric Wheel Vehicle

作　　者：刘晋霞 王凯[2] 耿乐 LIU Jinxia;WANG Kai;GENG Le(College of Transportation,Shandong University of Science and Technology,Qingdao 266590,China;College of Mechanical and Electronic Engineering,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]山东科技大学交通学院,山东青岛266590 [2]山东科技大学机械电子工程学院,山东青岛266590

出　　处：《重庆理工大学学报（自然科学）》2021年第12期63-69,共7页Journal of Chongqing University of Technology：Natural Science

基　　金：山东省重点研发计划项目(2019GGX103024)。

摘　　要：针对对置布置磁流变减振器的电动轮悬架,根据当前道路情况,取常见高速沥青路面的百公里加速、100 km/h匀速和郊区混凝土路面的60 km/h匀速3种路面激励,建立了1/4车辆模型,展开减振器的控制研究。设计了模糊及变论域模糊控制器对簧载质量速度及其与非簧载质量的相对速度、磁流变减振器的库伦阻尼力进行控制和仿真。结果表明:变论域模糊控制与模糊控制相比,百公里加速、100 km/h匀速和60 km/h匀速路面激励下车身加速度分别下降了7.0%、15.2%、23.7%,轮胎动载荷分别下降了28.3%、31.2%、36.5%,悬架动行程有一定恶化但其最大波动范围小于7 mm,对平顺性影响不明显。Aiming at the electric wheel suspension with an opposite magnetorheological damper(MRD),the road excitations of acceleration from 0 km/h to 100 km/h and 100 km/h constant speed on expressway paved with asphalt,and 60 km/h constant speed on suburban road paved with concrete are selected in the light of highly improved road condition.Then the 1/4 vehicle model is established,and the control research of damper is carried out.This research will provide theoretical reference for the design of electric wheel vehicle.A fuzzy and a variable universe fuzzy controllers of MRD are designed to control the sprung mass velocity and its relative velocity with nonsprung mass,and the Coulomb damping force of magnetorheological damper.The results show that:Under the road excitations of acceleration from 0 km/h to 100 km/h and 100 km/h constant speed on expressway paved with asphalt and 60 km/h constant speed on suburban road paved with concrete,variable universe fuzzy control,compared with fuzzy control,the vehicle body acceleration decreases by 7.0%,15.2%and 23.7%respectively.The tire dynamic load decreases by 28.3%,31.2%and 36.5%respectively.The suspension dynamic travel has certain deterioration,but the maximum fluctuation range is less than 7 mm,and the influence on ride comfort is not obvious.

关 键 词：电动轮汽车 对置布置磁流变减振器 常见路面激励 模糊控制 变论域模糊控制 

分 类 号：U463.33[机械工程—车辆工程]