采用电控液压制动系统的SUV防侧翻鲁棒控制  

Robust Control Strategy of SUV Rollover Prevention with Electro Hydraulic Brake System

作　　者：金智林[1] 马翠贞[1] 张甲乐[1] 乔建龙 

机构地区：[1]南京航空航天大学车辆工程系,南京210016 [2]南京汽车集团有限公司汽车工程研究院,南京210010

出　　处：《重庆理工大学学报（自然科学）》2014年第1期1-6,共6页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(11202096)

摘　　要：为改善运动型多功能汽车(SUV)主动防侧翻能力,提出基于电控液压制动系统的鲁棒防侧翻控制方法。考虑汽车的纵向、侧向、横摆、侧倾以及4个车轮的运动,建立8自由度非线性汽车模型;以线性3自由度侧翻系统为参考模型设计鲁棒控制器,以横向载荷转移率作为侧翻评价指标,应用差动制动原理分配横摆力矩控制多自由度车辆;用AMESim软件建立电控液压制动系统模型,用于控制各轮制动力矩;选取J-Turn及Worst-Case典型侧翻工况进行数值仿真,分析防侧翻控制方法对不同行驶工况的适用性。结果表明:EHB系统能够满足防侧翻制动要求;该方法能有效减小横向载荷转移率,降低SUV侧翻危险。In order to improve performance of rollover prevention for Sport Utility Vehicle （SUV）, the robust control strategy with Electro Hydraulic Brake （EHB） system is presented in this paper. An 8-degrees-of-freedom model was established on the rollover dynamic theory, including longitude, lat- eral, yaw, roll and four wheel rotation motion. The Load Transfer Ratio （LTR） was applied to design robust control strategy on the reference model. Also, the model of EHB system was established using AMESim software to produce braking torque. Then, the performance of the control strategy was ana- lyzed by some typical cases simulation, such as J-turn and Worst ease. The results show that the EHB system can provide the braking force for the vehicle rollover prevention and the strategy can reduce the load transfer ratio effectively.

关 键 词：SUV防侧翻 鲁棒控制 电控液压制动 汽车主动安全 

分 类 号：U461.91[机械工程—车辆工程]