老年纯电动乘用车追尾防碰撞研究  

Research on Anti-collision for Rear-End in Elderly Pure Electric Passenger Vehicles

作　　者：陈丽静[1] CHEN Lijing(Department of Public Security,Fujian Police College,Fuzhou 350007,China)

机构地区：[1]福建警察学院治安系,福建福州350007

出　　处：《汽车实用技术》2024年第23期6-10,15,共6页Automobile Applied Technology

基　　金：2023年福建警察学院管理与服务专项课题“老年纯电动乘用车追尾碰撞系统研究”(GL202306)。

摘　　要：针对老年驾驶人反应速度慢、老年乘用车加速度相对较小的特点,通过增加预警时间、设置预警、舒适制动、紧急制动等情形,建立老年纯电动乘用车追尾防碰撞模型。借助MATLAB仿真,可知潮湿路面下的紧急制动距离大于干燥路面下的制动距离,且随着后车速度的增加,差值越大;随着前后两车速度差的增加,上下坡的紧急制动距离差值越大,在潮湿路面上更为明显;当速度差一定时,随着后车速度的增加,弯道上的预警制动距离差值越明显,需对弯道预警进行单独设置。In consideration of the extended reaction time of the elderly drivers and the relatively limited deceleration capability of elderly passenger cars,an anti-collision model of pure electric passenger vehicles for the elderly is developed by extending warning lead times,configuring warning,comfortable braking,and emergency braking scenarios.Through MATLAB simulation,it is observed that the stopping distance on wet roads exceeded that on dry surfaces,with the disparity growing alongside the trailing vehicle's speed;as the velocity differential between two vehicles increased,so do the variance in emergency braking distances on inclines,particularly evident on moist roads.When maintaining a constant speed differential,discrepancies in warning braking distances during curves became more pronounced as following car speeds escalated necessitating distinct curve-warning configurations.

关 键 词：电动乘用车 老年驾驶人 追尾 制动距离 

分 类 号：U461[机械工程—车辆工程]