Phase deviation of semi-active suspension control and its compensation with inertial suspension  

基于动惯性悬架的半主动控制相位偏差补偿

作　　者：Yi Yang Changning Liu Long Chen Xiaoliang Zhang 杨艺;刘昌宁;陈龙;张孝良

机构地区：[1]School of Automotive and Traffic Engineering(Automotive Engineering Research Institute),Jiangsu University,Zhenjiang,212013,China [2]Department of Civil and Environmental Engineering,The Hong Kong Polytechnic University,Hong Kong,China

出　　处：《Acta Mechanica Sinica》2024年第6期141-153,共13页力学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.52202471);the National Natural Science Foundation of China:Regional Innovation and Development Joint Fund(Grant No.U20A20331);Jiangsu Funding Program for Excellent Postdoctoral Talent(Grant No.2022ZB659);the National Natural Science Foundation of China(Grant No.52002156 and 52072157);the Postgraduate Education Reform Project of Jiangsu Province(Grant No.KYCX21_3333).

摘　　要：The performance of vehicle suspension is evaluated based on three conflicting indexes:body acceleration,suspension deflection,and dynamic tire load,which vary across different frequency bands.The suspension control strategy faces the challenge to strike a balance among these indexes.This research analyzes the fundamental mechanism of control phase deviation effects on skyhook damper control,groundhook damper control,and acceleration drive damper control.From the perspective of complex domain mechanical impedance with the support of the inertial suspension,a structure-based compensation approach is proposed to address for the control phase deviation.The simulation analysis demonstrates that the coordination of inertial suspension structure and control strategy can effectively enhance the comprehensive suspension performance across entire frequency range.Finally,a semi-active inertial suspension bench is implemented.The experimental results indicate that the suspension with the semi-active inertial suspension has outstanding vibration isolation ability,and enhances the suspension performance at ride comfort,suspension deflection,and road friendly significantly.车身加速度,悬架动行程和轮胎动载荷是三个相互制衡的车辆悬架性能评价指标,并随着振动频率的不同而变化.悬架控制策略面临着平衡这三个指标的挑战.本研究分析了天棚阻尼控制、地棚阻尼控制、加速度驱动阻尼控制相位偏差的补偿机理.从机械阻抗角度出发,提出了基于动惯性悬架结构补偿控制相位偏差的方法.通过仿真分析可以发现,动惯性悬架结构和控制策略的协调运用,能在全频段内有效提升悬架的综合性能.此外,开展了半主动动惯性悬架试验.试验结果表明,半主动动惯性悬架拥有出色的隔振性能,并有效提升了悬架的乘坐舒适性,悬架动行程和道路友好性.

关 键 词：Vibration isolation Vibration control Phase deviation Control compensation Semi-active suspension 

分 类 号：O34[理学—固体力学]