The invention discloses a method, device and equipment for determining the downhill speed of a vehicle and a medium, and relates to the technical field of vehicle speed control. Comprising the following steps: acquiring driving information of a vehicle and road information of a target downhill road to be driven; dividing the target downhill road into a first downhill road and a second downhill road, wherein the terminal point of the first downhill road is the starting point of the second downhill road; the acceleration of the vehicle on the first downhill road is different from the acceleration of the vehicle on the second downhill road; calculating a first downhill length of the first downhill road and a turning speed of the vehicle at a final position of the first downhill road by taking the minimum lost braking energy as a target; and calculating the acceleration of the vehicle in the target downhill road and the speeds at the plurality of position points according to the first downhill length of the first downhill road, the turning vehicle speed, the driving information of the vehicle and the road information of the target downhill road. According to the scheme, the braking energy consumed by air resistance is reduced, and the recovery rate of the braking energy is increased.

    本发明公开了一种车辆下坡速度的确定方法、装置、设备及介质,涉及车速控制技术领域。包括:获取车辆的行驶信息和待行驶的目标下坡道路的道路信息;将目标下坡道路划分为第一下坡道路和第二下坡道路,第一下坡道路的终点是第二下坡道路的起点;车辆在第一下坡道路的加速度与车辆在第二下坡道路的加速度不同;以损耗的制动能量最小为目标,计算第一下坡道路的第一下坡长度,以及车辆在第一下坡道路的终点位置处的转折车速;根据第一下坡道路的第一下坡长度、转折车速、车辆的行驶信息和目标下坡道路的道路信息,计算车辆在目标下坡道路中的加速度和多个位置点处的速度。本方案,降低了因空气阻力损耗的制动能量,提高了制动能量的回收率。


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    Title :

    Method, device and equipment for determining downhill speed of vehicle and medium


    Additional title:

    车辆下坡速度的确定方法、装置、设备及介质


    Contributors:
    QU TIANLEI (author) / ZHANG JINGHUAN (author) / CHEN SHOUGANG (author) / ZHANG PENG (author) / WANG MINGQING (author) / LIU LI (author) / WANG CONG (author) / FANG LISHUANG (author)

    Publication date :

    2023-08-08


    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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