汽车前向主动报警/避撞策略  

Vehicle frontal collision warning/avoidance strategy

作　　者：裴晓飞[1] 齐志权[2] 王保锋[2] 刘昭度[2] 

机构地区：[1]武汉理工大学汽车工程学院,武汉430063 [2]北京理工大学机械与车辆学院,北京100081

出　　处：《吉林大学学报（工学版）》2014年第3期599-604,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(51005019)

摘　　要：为了准确地判断当前工况的危险程度,在充分利用已知车间运动信息的基础上,提出了避撞时间余量Tbuffer的概念。基于Tbuffer指标设计了一种适用于不同驾驶员避撞特性的分级报警/避撞算法,并且通过声光报警及主动制动帮助驾驶员实现有效避撞。最后将本文算法与其他4种算法在3种工况下进行了对比仿真试验,结果表明:所提出的主动避撞策略符合驾驶员避撞特性,有效地提高了汽车的主动安全性。To evaluate the level of danger of current dynamic situation, a concept of collision avoidance time buffer, Tuuf^er, is proposed to calculate how much time buffer is left for driver or the control system to react. Based on Tbu^fer, a graded collision warning/avoidance algorithm is designed to adjust to different driving behaviors. Through audio/visual warning and active braking intervention, effective collision avoidance action can be realized. Simulations were carried out to compare the proposed algorithm with other four algorithms under three conditions. Results show that the proposed strategy is not only in accordance with driver＇s collision avoidance reaction, but also improves vehicle active safety effectively.

关 键 词：车辆工程 主动安全 避撞时间余量 主动制动 分级报警 

分 类 号：U463[机械工程—车辆工程]