The invention discloses a vehicle speed planning method considering road traffic information so as to cope with increasingly complex traffic environments. Real-time traffic flow states and signal lamp timing information are obtained through V2X communication, a long-term vehicle speed planning problem is constructed, and the purposes of reducing energy consumption and improving passing efficiency are achieved. In the model, a vehicle queuing model is established based on a shock wave theory, the dynamic queuing and dissipation process of a signal lamp intersection is described, and an extended signal lamp model is introduced to enhance the accuracy of a traffic state. Through a hierarchical optimization strategy, vehicle speed planning is decomposed into two parts of discrete optimization and continuous optimization, smooth passing within the time allowed by a signal lamp is ensured, the vehicle speed is adjusted and planned when the traffic flow density exceeds the standard, and rationality is ensured. Finally, according to the method, a final reference vehicle speed sequence is formed through combination of dynamic planning and an interior point method. On the whole, the technology effectively improves the adaptability of a vehicle speed planning algorithm, remarkably reduces the vehicle energy consumption, and provides a new idea for the development of an intelligent traffic system.

    本发明公开了一种考虑道路交通信息的车速规划方法,以应对日益复杂的交通环境。通过V2X通信获取实时车流状态及信号灯配时信息,构建长期车速规划问题,旨在降低能耗和提高通行效率。模型中,基于冲击波理论建立车辆排队模型,描述信号灯路口的动态排队和消散过程,并引入扩展信号灯模型以增强通行状态的准确性。通过分层优化策略,车速规划被分解为离散寻优和连续优化两个部分,确保在信号灯允许的时间内顺畅通行,并在交通流密度超标时调整规划车速,保证合理性。最终,该方法通过动态规划和内点法结合,形成最终的参考车速序列。整体而言,此项技术有效提升了车速规划算法的适应性,显著降低了车辆能耗,为智能交通系统的发展提供了新思路。


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    Title :

    Vehicle speed planning method considering road traffic information


    Additional title:

    一种考虑道路交通信息的车速规划方法


    Contributors:
    SUN CHAO (author) / SONG XUPENG (author) / ZHAO YUERAN (author) / WANG TIANZE (author) / YUE CHAO (author) / WANG BO (author)

    Publication date :

    2024-11-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS




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