The invention relates to a vehicle speed control method and device, equipment and a medium, and the method comprises the steps: collecting the current speed of a front vehicle, and calculating the optimal expected speed of the vehicle based on the current speed of the front vehicle and the distance difference between the front vehicle and the vehicle in a preset time range; adjusting a preset reward function according to the current driving environment of the vehicle to obtain an optimal reward function; when the current speed of the vehicle is optimized through a preset reward function and the optimal expected speed of the vehicle, a preset Jerk function is introduced, a reward expansion function is obtained in combination with the preset Jerk function and the optimal reward function, and at least one driving parameter, except the vehicle speed, of the vehicle is optimized through the reward expansion function; and controlling the vehicle to run according to the at least one optimized running parameter. Therefore, the problems that a traditional speed control algorithm is difficult to adapt to continuously changing dynamic environments, only pursues single targets such as vehicle speed and the like, and is poor in adaptability and generalization ability when facing increasingly complex and diversified traffic scenes are solved.

    本申请涉及一种车辆速度控制方法、装置、设备及介质,其中,方法包括:采集前车的当前速度,并基于前车的当前速度和预设时间范围内前车与本车之间的距离差计算本车的最优期望速度;根据本车的当前行驶环境调整预设奖励函数,得到最优奖励函数;在利用预设奖励函数和本车最优期望速度优化本车的当前速度的同时,引入预设Jerk函数,并结合预设Jerk函数和最优奖励函数得到奖励拓展函数,利用奖励拓展函数优化本车除车速外的至少一项行驶参数,以根据优化后的至少一项行驶参数控制车辆行驶。由此,解决了传统速度控制算法难以适应不断变化的动态环境,且仅追求车速等单一目标,在面对日益复杂和多样化的交通场景时,其适应性和泛化能力较弱等问题。


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    Title :

    Vehicle speed control method, device, equipment and medium


    Additional title:

    车辆速度控制方法、装置、设备及介质


    Contributors:
    WANG KAI (author) / QU XIAOBO (author) / LIN HONGYI (author)

    Publication date :

    2023-08-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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