The invention relates to a self-adaptive fleet control method for a signalized intersection under mixed traffic flow, and the method comprises the steps: 1, enabling vehicles to enter an intersection control region and start to form a fleet, forming a mixed fleet with a CAV as a head vehicle, and enabling other vehicles to follow a front vehicle according to an optimal speed vehicle following model; step 2, the first vehicle CAV selects an optimal green light phase passing through the intersection; step 3, judging whether there is a queuing vehicle at the front intersection, and if not, entering step 4; otherwise, entering step 5; step 4, calculating the time when the first vehicle CAV arrives at the intersection according to the green light duration, and determining the number of hybrid vehicle teams and the optimal speed of the hybrid vehicle teams passing through the intersection; 5, if queuing vehicles appear at the front intersection, immediately starting an adaptive adjustment mechanism, recalculating the time when the first vehicle CAV arrives at the stop line according to the remaining green light time, and updating the number of the hybrid vehicle teams and the optimal speed of the hybrid vehicle teams passing through the intersection; and step 6, optimizing the speed of the first vehicle CAV, and realizing that the hybrid motorcade passes through the intersection with the lowest energy consumption. By optimizing the acceleration of the first vehicle CAV and dynamically adjusting the number and the speed of the vehicles in the hybrid motorcade, the motorcade can pass through the intersection at the lowest energy consumption level, the unnecessary waiting time is shortened, and therefore the passing efficiency and the mobility of the whole road network are greatly improved.
本发明涉及一种混合交通流下信号交叉口的自适应车队控制方法,包括:步骤1,车辆进入交叉口控制区开始编队,形成以CAV为头车的混合车队,其他车辆按照最优速度跟车模型跟随前车行驶;步骤2,头车CAV选择通过交叉口的最优绿灯相位;步骤3,判断前方路口是否有排队车辆,若无排队车辆,进入步骤4;否则进入步骤5;步骤4,根据绿灯持续时间计算头车CAV到达交叉口的时间,确定混合车队数量和混合车队通过交叉口的最优速度;步骤5,若前方路口出现排队车辆,立即启动自适应调节机制,根据剩余绿灯时间重新计算头车CAV到达停车线的时间,更新混合车队数量与混合车队通过交叉口的最优速度;步骤6,优化头车CAV的速度,实现混合车队以最低能耗通过交叉口。本发明旨在通过优化头车CAV的加速度,以及对混合车队中车辆的数量和速度进行动态调整,实现车队以最低能耗水平通过交叉口,减少不必要的等车时间,从而大幅度提升整个路网的通行效率和流动性。
Self-adaptive motorcade control method for signalized intersection under mixed traffic flow
一种混合交通流下信号交叉口的自适应车队控制方法
2024-12-03
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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