运动型多功能汽车动态侧翻预警系统研究  

Research on dynamic rollover warning system for SUV

作　　者：金智林[1] 张鸿生[1] 马翠贞[1] 

机构地区：[1]南京航空航天大学车辆工程系,江苏南京210016

出　　处：《传感器与微系统》2012年第9期32-35,38,共5页Transducer and Microsystem Technologies

基　　金：浙江省重大科技计划资助项目(2009C01001)

摘　　要：汽车侧翻是一种迅速发生且非常致命的事故,为及时准确地获得汽车侧翻状态信息,针对运动型多功能汽车(SUV)研究了一种动态侧翻预警系统。根据侧翻运动规律建立了三自由度SUV侧翻动力学模型,研究了SUV动态侧翻预警算法,设计了以16位单片机为核心的动态侧翻预警系统硬件结构。对典型工况下的SUV动态侧翻预警性能进行了实验分析,结果表明:该系统计算汽车侧翻预警时间(TTR)准确且实时性好,减小重心高度、方向转角及车速,增加轮距宽度将有助于获得更大的动态侧翻预警时间,提高汽车防侧翻主动安全性。Vehicle rollover is a fatal accident which occurs rapidly. To get accurate information of vehicle rollover timely, a dynamic rollover warning system is presented for a sport utility vehicle （ SUV ）. From the motion law of vehicle rollover,a three degree of freedom model is established and the dynamic rollover warning algorithm is studied for SUV. A 16-bit microcomputer is used to design the test bench of vehicle dynamic rollover warning. Some typical experimental cases are applied to analyze the system performance. The results show that the system can accurately obtain the time to rollover（TTR） in super real-time and improve vehicle anti-rollover safety.

关 键 词：运动型多功能汽车 动态侧翻预警 侧翻预警时间 实验分析 主动安全性 

分 类 号：U461.91[机械工程—车辆工程]