Vehicle roll stability control with active roll-resistant electro-hydraulic suspension  

作　　者：Lijun XIAO Ming WANG Bangji ZHANG Zhihua ZHONG 

机构地区：[1]State Key Laboratory of Advanced Design and Manufacture for Vehicle Body,Hunan University,Changsha 410082,China

出　　处：《Frontiers of Mechanical Engineering》2020年第1期43-54,共12页机械工程前沿（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(Grant No.5187051675);the Natural Science Foundation of Hunan Provincial(Grant No.2017JJ2031).

摘　　要：This study examines roll stability control for vehicles with an active roll-resistant electro-hydraulic suspension(RREHS)subsystem under steering maneuvers.First,we derive a vehicle model with four degrees of freedom and incorporates yaw and roll motions.Second,an optimal linear quadratic regulator controller is obtained in consideration of dynamic vehicle performance.Third,an RREHS subsystem with an electric servo-valve actuator is proposed,and the corresponding dynamic equations are obtained.Fourth,field experiments are conducted to validate the performance of the vehicle model under sine-wave and double-lane-change steering maneuvers.Finally,the effectiveness of the active RREHS is determined by examining vehicle responses under sine-wave and double-lane-change maneuvers.The enhancement in vehicle roll stability through the RREHS subsystem is also verified.

关 键 词：ELECTRO-HYDRAULIC SUSPENSION ROLL stability LQR EXPERIMENT 

分 类 号：U46[机械工程—车辆工程]