不同驾驶员响应特性下的前碰撞预警安全收益分析

Safety Benefit Analysis of Forward Collision Warnings under Different Driver Response Characteristics

利用驾驶模拟器测试研究了追尾危险工况下驾驶员的避撞行为。采用事故发生率作为安全收益评价指标,利用二元Logistic回归方法分析了驾驶员分心与否、避撞方式、反应时间及避撞操作力度等参数对前碰撞预警安全收益的影响。结果表明,驾驶员分心与否显著影响事故发生率,前碰撞预警算法有必要考虑驾驶员的注意力状态,保证驾驶员反应时间小于2.0 s,以降低事故发生的可能性。

Driver＇s collision-avoidance behavior under rear-end collision of dangerous scenarios was studied using driving simulator tests. The accident rate was used as the evaluation index of safety benefit in this paper. The influence of parameters, i.e. driver distraction or not, collision-avoidance method, response time and intensity of operation of forward collision avoidance was analyzed using binary-Logistic Regression Analysis. The results showed that distraction or not of the drive significantly influence the accident rate. Driver＇s attention state is suggested to be considered in the algorithm of forward collision warnings to ensure driver response time less than 2s, to reduce the possibility of accident.