汽车工程 ›› 2021, Vol. 43 ›› Issue (11): 1577-1586.doi: 10.19562/j.chinasae.qcgc.2021.11.002

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网联交叉口信号-车辆轨迹协同优化控制方法

赵祥模,张心睿,王润民(),徐志刚,凡海金   

  1. 1.长安大学信息工程学院,西安  710064
    2.长安大学,车联网教育部-中国移动联合实验室,西安  710018
  • 收稿日期:2021-06-17 修回日期:2021-07-15 出版日期:2021-11-25 发布日期:2021-11-22
  • 通讯作者: 王润民 E-mail:rmwchd@qq.com
  • 基金资助:
    国家重点研发计划(2018YFB1600605)

Cooperative Optimization Control Method of Traffic Signals and Vehicle Trajectories at Connected Intersection

Xiangmo Zhao,Xinrui Zhang,Runmin Wang(),Zhigang Xu,Haijin Fan   

  1. 1.College of Information Engineering,Chang’an University,Xi’an  710064
    2.The Joint Laboratory for Internet of Vehicles,Ministry of Education-China Mobile Communications Corporation,Chang’an University,Xi’an  710018
  • Received:2021-06-17 Revised:2021-07-15 Online:2021-11-25 Published:2021-11-22
  • Contact: Runmin Wang E-mail:rmwchd@qq.com

摘要:

为了提升网联交叉口车辆通行效率与燃油经济性,设计了一种网联信控交叉口协同控制应用场景,提出了一种分层解耦式网联交叉口信号-车辆轨迹协同优化控制方法,其中顶层采用“作业调度”和遗传算法以最小化交叉口平均旅行时间延误为优化目标实现信号配时与相序优化;底层结合最优配时结果,采用分段优化方法以最小化平均燃油消耗为优化目标实现车辆轨迹优化。仿真结果表明,本文中提出的协同控制方法在交叉口车流量均衡与不均衡、低密度和高密度工况下,均可以有效提升交叉口通行效率和燃油经济性;提出方法效果随最小绿灯时长的减小、V2X通信范围的增加而更加显著,综合考虑交通公平性和建设成本等因素,提出的网联信控交叉口协同控制系统最小绿灯时长应设置为5 s,有效V2X通信范围设置为800 m。

关键词: 智能网联汽车, 信控交叉口, 协同控制, 分层解耦, 平均旅行时间延误, 燃油经济性

Abstract:

In order to improve the traffic efficiency and fuel economy at the connected intersection, a collaborative control application scenario of the connected and signalized intersection is designed, and a hierarchical decoupling collaborative optimization control method of traffic signals and vehicle trajectories is proposed. An optimization method combining “job scheduling” and genetic algorithm is used to minimize the average travel time delay at the top layer to realize signal timing and phase sequence optimization; at the bottom layer, combined with the timing optimization result, the piecewise optimization method is used to realize vehicle trajectories optimization so as to minimize the average fuel consumption. The simulation results show that the proposed cooperative control method can effectively improve the traffic efficiency and fuel economy at the connected intersection under the conditions of balanced and unbalanced traffic flow, and low and high traffic density. The effect of the proposed method is more significant with the decrease of minimum green light duration and increase of V2X communication range. Considering the factors of traffic fairness and construction cost, the minimum green light duration and effective V2X communication range of the proposed cooperative control system for connected signalized intersection should be set as 5 s and 800 m respectively.

Key words: intelligent connected vehicle, signalized intersection, cooperative control, layered decoupling, average travel time delay, fuel economy