微型客车防侧翻底盘集成控制策略  

Integrated anti-rollover control strategy of minibus

作　　者：李胜琴[1] 杜鹏 冯新园 LI Shengqin;DU Peng;FENG Xinyuan(School of Traffic and Transportation,Northeast Forestry University,Harbin,Heilongjiang 150040,China)

机构地区：[1]东北林业大学交通学院,黑龙江哈尔滨150040

出　　处：《江苏大学学报（自然科学版）》2022年第2期131-138,共8页Journal of Jiangsu University：Natural Science Edition

基　　金：中央高校基本科研业务费专项资金资助项目(2572019BG01)。

摘　　要：针对微型客车在行驶过程中出现的侧翻问题,建立微型客车整车参数化模型和车辆参考模型.根据主动悬架工作原理和差动制动力学特性,分别建立主动悬架和差动制动防侧翻控制子系统,在此基础上提出防侧翻集成控制策略,以横向载荷转移率为触发条件,依据车速分别实施主动悬架控制或差动制动控制,降低车辆横摆角速度及车身侧倾角,实现防侧翻控制.利用Matlab/Si-mulink与CarSim建立集成控制系统联合仿真模型,选取鱼钩试验及角阶跃试验2种典型工况对防侧翻集成控制策略进行仿真试验验证.结果表明:防侧翻集成控制系统能够有效降低极限工况下车辆的车身侧倾角、横摆角速度等参数值,增强微型客车的侧翻稳定性,降低侧翻发生的几率.To solve the rollover problem of minibus during driving,the parametric model and the vehicle reference model of minibus were established.According to the working principle of active suspension and the dynamic characteristics of differential braking,the anti-rollover control subsystems of active suspension and differential braking were respectively established to propose the integrated anti-rollover control strategy.Using the lateral load transfer rate as trigger condition,the active suspension control or the differential braking control was implemented according to the vehicle speed to reduce the vehicle yaw rate and the roll angle of vehicle for achieving the anti-rollover control.The co-simulation model of integrated control system was established in Matlab/Simulink and CarSim,and the integrated control strategy of anti-rollover was verified by the simulation test under two typical working conditions of hook test and angle step test.The results show that the integrated anti-rollover control system can effectively reduce the vehicle′s body roll angle,yaw rate and other parameters under extreme conditions,and the rollover stability of minibus can be improved to reduce the probability of rollover.

关 键 词：微型客车 侧翻稳定性 集成控制 差动制动 主动悬架 

分 类 号：U463.33[机械工程—车辆工程]