摘要
以长沙市汽车碰撞行人事故形态分析为基础,研究在汽车主动避撞系统的响应时间内,行人被感应器及时探测到的概率。具体地,从长沙IVAC数据库的389起车辆碰撞行人事故中,挑选出F1和F2两种最常见的事故形态类型,且能估算其行驶速度的案例分别为65和64起。结合车辆和行人运动轨迹、运动速度等参数,对F1和F2事故案例建立了行人探测模型。针对给定的感应器探测半角(15°、30°和45°),分别计算出了行人的探测概率。结果显示,当探测半角≥30°时,94%以上的行人能被及时探测。
Based on the analysis on real accident scenarios of vehicle-pedestrian impact in Changsha city,the probabilities of a pedestrian to be detected within the response time of active collision-avoidance system are studied.Specifically,two most common accident scenarios F1 and F2 out of 389 vehicle-pedestrian accidents in Changsha IVAC database are selected with 65 and 64 cases respectively in which the vehicle speed can be estimated.Combined with parameters such as the moving trajectory and speed of vehicle and pedestrian,pedestrian detection model is set up for both F1 and F2 accident scenarios.Then pedestrian detection probabilities are calculated for three given half angle of detection sensor（15°,30°and 45°）.The results indicate that when the half angle of detection≥ 30°,more than 94% of pedestrians can be well detected in time.
出处
《汽车工程》
EI
CSCD
北大核心
2010年第11期977-983,共7页
Automotive Engineering
基金
国家"863"高科技项目(2006AA110101)
国家教育部"111计划"项目(111-2-11)
湖南大学汽车车身先进设计制造国家重点实验室自主研究课题项目(60870004)
教育部长江学者与创新团队发展计划项目(531105050037)资助
关键词
交通安全
汽车碰撞行人事故形态
行人探测模型
主动避撞系统
traffic safety
vehicle-pedestrian collision accident scenarios
pedestrian detection model
active collision-avoidance system
