According to the vehicle-road cooperation signal priority control method and system provided by the invention, a preset range is set, that is, when a bus is in an area close to an intersection, the response to a bus priority control strategy is started, and the interference of control delay in travel time is overcome. In the aspect of control calculation, time difference calculation is carried out according to the time when a bus arrives at an intersection and the center distance of a bus phase, certain buffer time is given to the bus, and the influence of speed fluctuation on the control effect is avoided; and secondly, in the calculation process of a specific phase control strategy, speed fluctuation in the driving process is fully considered, optimization is carried out based on the interval interval minimum target of the driving interval and the bus phase, and the risk of control failure can be effectively reduced through double guarantee. Besides, the control strategy only relates to at most one half cycle, and only phase compression and phase extension do not relate to signal insertion and jump, so that traffic disorder and interference on normal driving order caused by frequent phase change are avoided.
本发明提供一种车路协同信号优先控制方法与系统,通过设定一个预设范围,也即,当公交车处于距离路口较近的区域时,就开始进行公交优先控制策略的响应,克服了行程时间中控制延误的干扰。在控制计算方面,时间差计算依据公交车到达路口的时间距离公交相位的中心距离进行计算,给予公交车辆一定的缓冲时间,避免速度波动对控制效果的影响;其次,在具体相位控制策略的计算过程中,充分考虑了行驶过程中的速度波动,依托行驶区间与公交相位的区间间隔最小目标进行优化,双重保障能够有效降低控制失效的风险。此外,控制策略只涉及最多一个半周期,且只有相位压缩和相位延长不涉及信号插入、跳跃,不会频繁变换相位引发交通混乱、干扰正常行驶秩序。
Vehicle-road cooperation signal priority control method and system
一种车路协同信号优先控制方法与系统
2025-05-30
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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