面向交叉口主动安全的车路协同辅助决策系统设计  

Design of Vehicle-road Cooperative Auxiliary Decision-making System for Active Safety at Intersections

作　　者：曲大义 韩乐潍 林璐 黑凯先 赵梓旭 QU Da-yi;HAN Le-wei;LIN Lu;HEI Kai-xian;ZHAO Zi-xu(School of Mechanical and Automotive Engineering,Qingdao University of Technology,Qingdao Shandong 266520,China)

机构地区：[1]青岛理工大学机械与汽车工程学院,山东青岛266520

出　　处：《公路交通科技》2021年第5期100-108,122,共10页Journal of Highway and Transportation Research and Development

基　　金：国家自然科学基金项目(51678320)。

摘　　要：针对交叉口红灯启亮前10 s,驾驶行为不稳定造成的交通秩序混乱、安全性差和效率低等问题,为控制交叉口处的行驶车速,辅助驾驶员准确决策,开发了一种面向交叉口主动安全的车路协同辅助决策系统。采用系统分层模块化设计,将系统分为信息采集、决策控制、智能埋地灯3个模块;根据交叉口信号相位、驶近车辆的速度信息,在分析两难区动态特性的基础上建立辅助决策模型,对当前驾驶行为的安全性进行判断;根据判断结果控制智能埋地灯状态与动态黄灯时间。通过智能埋地灯在熄灭、启亮红色、红色闪烁3种状态间灵活切换,对驾驶员进行视觉提醒,同时结合动态黄灯时间,能够有效规避交叉口事故发生的风险,缩短保守型驾驶行为带来的时间延误,整体提高路网的鲁棒性。In view of the problems of chaotic traffic order,poor safety and low efficiency caused by unstable driving behaviors 10 s before turning on red light at intersection,in order to control the driving speed at intersection and assist driver to make accurate decision,a vehicle-road collaborative auxiliary decision-making system for active safety of intersection is developed.Adopting the system hierarchical modular design,the system is divided into 3 modules:information collection,decision-making control and intelligent underground lights.According to the signal phase of intersection and the speed information of approaching vehicles,the auxiliary decision-making model is established based on the analysis of the dynamic characteristics of the dilemma area,and the safety of current driving behavior is judged,and The state of dynamic yellow light and intelligent underground lights are controlled accordingly.The intelligent underground lights can be flexibly switched among the states of off,on red and red flashing,and the driver can be reminded by vision.At the same time,combining with the dynamic yellow light time,it can effectively avoid the risk of intersection accidents,shorten the time delay caused by conservative driving behaviors,and improve the overall robustness of the road network.

关 键 词：交通安全 车路协同 两难区动态特性 决策模型 智能埋地灯 动态黄灯时间 

分 类 号：U491.2+3[交通运输工程—交通运输规划与管理]