弯道安全车速计算改进模型研究  

Improved Model Study of Safety Speed Calculation in Curves

作　　者：孙川[1,2] 吴超仲[1,2] 褚端峰[1,2,3] 傅宇浩 崔海龙 

机构地区：[1]武汉理工大学智能交通系统研究中心,湖北武汉430063 [2]武汉理工大学水路公路交通安全控制与装备教育部工程研究中心,湖北武汉430063 [3]北京航空航天大学车路协同与安全控制北京市重点实验室,北京100191 [4]中咨泰克交通工程集团有限公司,北京100083

出　　处：《中国公路学报》2015年第8期101-108,共8页China Journal of Highway and Transport

基　　金：国家自然科学基金项目(51105286;51178364);湖北省自然科学基金重点项目(2012FFA023);中央高校基本科研业务费专项资金项目(2014-IV-137);道路与交通工程教育部重点实验室开放基金项目(K201301);车路协同与安全控制北京市重点实验室开放基金项目(KFJJ-201401)

摘　　要：为提高车辆在弯道行驶的安全性,针对车辆在弯道的侧翻、侧滑等侧向失稳事件,引入车路协同思想,假设车辆与道路之间可进行信息交互,从而将车辆结构参数、驾驶人特性等引入到传统的基于道路环境信息的弯道安全车速计算模型中,建立了一种综合考虑人、车、路等多因素的弯道安全车速计算改进模型;并利用某型货车在各种工况下进行了试验对比分析。研究结果表明:改进模型计算得到的弯道安全车速值介于现有模型计算值之间;当路面附着系数上升至一定范围时,改进模型计算得到的弯道安全车速值呈现出独有的饱和现象,从而反映车辆在弯道以较高速度行驶时所发生的侧翻事故。In order to improve the vehicle driving safety in curved roads, aimed at vehicle lateral unstable incidents in curves, such as rollover, sideslip, it was assumed that the information between vehicle and road could be interacted with cooperative vehicle infrastructure. Driver characteristics and vehicle structural parameters were introduced to a traditional model of safety speed calculation based on road environment. An improved model of safety speed calculation in curves was established, considering the influence of human, vehicle, and road. The experimental comparative analysis was conducted by using a certain type of truck in various conditions. The results show that safety speed of improved model always falls in between the calculated values of existing models. When road adhesion coefficient rises to a certain range, safety speed of improved model has a unique saturation phenomenon, which can reflect rollover accident occurred at high speed in curves.

关 键 词：交通工程 车速计算模型 线性回归 侧翻 侧滑 车路协同 

分 类 号：U491.25[交通运输工程—交通运输规划与管理]