减振器阻尼对车辆侧倾稳定性影响的仿真研究  

Simulation research of the damping force for controlling roll dynamics of vehicles

作　　者：王灵龙[1] 邹博维[1] 

机构地区：[1]中国汽车技术研究中心,天津300300

出　　处：《中国测试》2017年第7期139-144,共6页China Measurement & Test

摘　　要：质心较高的车辆在行驶过程中由于转弯等操作发生侧倾对车辆操纵稳定性的影响较大,甚至会导致车辆侧翻事故的发生,该文以提高SUV等高质心车辆的侧倾性能为目的进行相关研究。为增加减振器阻尼力来提高车辆的侧倾稳定性,对1/2车辆模型进行研究,提出一种新的车辆侧倾稳定性控制方法,通过Matlab/Simulink与Car Sim进行联合仿真,验证提出的控制策略在保证车辆平顺性的同时能有效提高车辆的侧倾稳定性并达到防止车辆侧翻的效果。通过采用可调阻尼减振器的半主动悬架对车辆进行控制,可提高车辆的侧倾稳定性,防止SUV等高质心车辆因侧倾过大导致侧倾稳定性变差甚至发生侧翻,预防交通事故的发生。Owing to the vehicles with high center of mass may roll when it turns a corner and it will affect the vehicle handling stability and even cause serious accidents.This paper put forward to increase the damping force of damper to improve the roll stability of vehicles with high center of mass such as SUV. A 1/2 vehicle model was studied first. After getting a good result, a new method to control the roll stability of vehicles was put forward. The joint simulation of Matlab/ Simulink and CarSim proved that the control strategy can guarantee the vehicle roll stability and prevent vehicle rollover on the premise of ensuring vehicle ride comfort. The conclusion is that using the semi -active suspension of the variable damper to control the vehicle can improve the vehicle roll stability, prevent poor roll stability or rollover of vehicles with high center of mass such as SUV due to too large roll force and avoid traffic accidents.

关 键 词：侧倾稳定性 侧翻 可变阻尼减振器 控制策略 

分 类 号：U463.335.1[机械工程—车辆工程]