网联混合车流跟驰特性及稳态响应策略  

Car-following characteristics and steady-state response strategy of networked hybrid traffic flow

作　　者：孟奕名 曲大义 杨子奕 陈意成 邵德栋 MENG Yiming;QU Dayi;YANG Ziyi;CHEN Yicheng;SHAO Dedong(School of Mechanical&Automotive Engineering,Qingdao University of Technology,Qingdao 266525,China)

机构地区：[1]青岛理工大学机械与汽车工程学院,青岛266525

出　　处：《青岛理工大学学报》2023年第3期104-112,共9页Journal of Qingdao University of Technology

基　　金：国家自然科学基金资助项目(52272311)。

摘　　要：随着智能网联、车路协同、自动驾驶等技术的发展,研究网联混合车流的动态特性对提升道路交通运行效率和道路通行能力、提高道路交通安全等方面具有重要的理论价值。针对网联混合车流所呈现的复杂动态特性,考虑驾驶人反应时滞和车辆跟驰过程中相邻车道车辆插入的影响,分析网联混合车流的动态跟驰特性,修正及拓展优化速度模型;基于减少速度波动、提高驾乘舒适性为目标,设计稳态跟驰优化策略。通过MATLAB软件对城市快速路进行数值仿真实验,验证分析稳态跟驰优化策略的效果。结果表明,跟驰响应策略优化下的跟驰特性与实际车辆跟驰行为相吻合,对于减少车流速度波动、提高驾驶安全性和平稳性具有良好的效果。With the development of intelligent network,vehicle-road cooperation,autonomous driving and other technologies,the study of dynamic characteristics of networked hybrid traffic flow has grown theoretically important for improving the operation efficiency,capacity and safety of road traffic.In view of the complex dynamic characteristics of the networked hybrid traffic flow,this study modifies and develops the speed model by taking into account the influence of the driver’s reaction time delay and the vehicle’s insertion into the adjacent lane during the car-following process.In order to reduce speed fluctuation and increase ride comfort,the steady-state car-following optimization strategy is designed.Numerical simulation experiments of urban expressway are carried out by MATLAB software to verify and analyze the effect of the steady-state car-following optimization strategy.The results show that the following characteristics under the optimized car-following response strategy are consistent with the vehicle’s actual following behavior,which has a good effect on reducing the fluctuation of traffic speed and improving the driving safety and stability.

关 键 词：交通流理论 跟驰特性 稳态控制策略 数值仿真 

分 类 号：U491[交通运输工程—交通运输规划与管理]