摘要
为研究自动制动系统的参数对事故中行人发生MAIS3+损伤风险和死亡风险的影响,探寻适合中国道路交通情况的参数取值范围,采用逻辑回归分析法构建了长头型车辆碰撞速度与行人MAIS3+损伤风险和死亡风险的回归方程。考虑事故中驾驶员转向避让与来不及转向两种情况,建立了事故前人-车相对位置数学模型,统计分析了探测角度、最大制动减速度、制动提前时间和制动协调时间等自动制动系统参数对降低行人MAIS3+损伤风险和死亡风险的影响,得到了一组最优参数值。研究结果可为我国自动制动系统的设计和改进提供一定的理论依据。
In order to study the effects of the parameters of automatic braking system on the risk of pedestrian MAIS3 ＋ injury and fatality,and to find the appropriate parameters suiting to China＇s road traffic conditions,the regression equations are constructed,which describe the relationship between the impact speed and the risks of pedestrian MAIS3＋ injury and fatality for cab-behind-engine vehicles,based on logic regression analysis.With considerations of two accident cases of driver swerving and having no time to swerve,a mathematical model for the position of pedestrian relative to vehicle before accident is established,and the effects of the parameters of automatic braking system,including the detection angle,the maximum braking deceleration and the times for braking initiation and coordination,on the reduction of risks of pedestrian MAIS3＋ injury and fatality are statistically analyzed,with a set of optimal parameters obtained.The research can provide certain theoretical basis for the design and improvement of domestic automatic braking system.
出处
《汽车工程》
EI
CSCD
北大核心
2015年第12期1400-1405,1394,共7页
Automotive Engineering
基金
山东省科技发展计划项目(2011GGX10502)资助
关键词
行人保护
自动制动系统
pedestrian protection
automatic braking system
