Stability of connected and automated vehicles platoon considering communications failures  

作　　者：刘润坤 于海洋 任毅龙 崔志勇 Run-Kun Liu;Hai-Yang Yu;Yi-Long Ren;Zhi-Yong Cui(School of Transportation Science and Engineering,Beijing Key Laboratory for Cooperative Vehicle Infrastructure Systems and Safety Control,Beihang University,Beijing 100191,China;Beijing Advanced Innovation Center for Big Data and Brain Computing,Beihang University,Beijing 100191,China)

机构地区：[1]School of Transportation Science and Engineering,Beijing Key Laboratory for Cooperative Vehicle Infrastructure Systems and Safety Control,Beihang University,Beijing 100191,China [2]Beijing Advanced Innovation Center for Big Data and Brain Computing,Beihang University,Beijing 100191,China

出　　处：《Chinese Physics B》2023年第7期598-609,共12页中国物理B（英文版）

基　　金：Project supported by the National Key Research and Development Project of China(Grant No.2018YFE0204300);the Beijing Municipal Science&Technology Commission(Grant No.Z211100004221008);the National Natural Science Foundation of China(Grant No.U1964206).

摘　　要：As a form of a future traffic system,a connected and automated vehicle(CAV)platoon is a typical nonlinear physical system.CAVs can communicate with each other and exchange information.However,communication failures can change the platoon system status.To characterize this change,a dynamic topology-based car-following model and its generalized form are proposed in this work.Then,a stability analysis method is explored.Finally,taking the dynamic cooperative intelligent driver model(DC-IDM)for example,a series of numerical simulations is conducted to analyze the platoon stability in different communication topology scenarios.The results show that the communication failures reduce the stability,but information from vehicles that are farther ahead and the use of a larger desired time headway can improve stability.Moreover,the critical ratio of communication failures required to ensure stability for different driving parameters is studied in this work.

关 键 词：connected and automated vehicle car-following model communication failures string stability 

分 类 号：TN929.5[电子电信—通信与信息系统] U463.6[电子电信—信息与通信工程]