The embodiment of the invention provides a vehicle speed determination method and device, and the method comprises the steps: obtaining a first vehicle speed, a second vehicle speed and a third vehicle speed of a vehicle under a target load, and corresponding speed correction coefficients, the first vehicle speed, the second vehicle speed and the third vehicle speed are corrected based on the speed correction coefficients corresponding to the first vehicle speed, the second vehicle speed and the third vehicle speed respectively, and a first difference value between the corrected first vehicle speed and the corrected third vehicle speed and a second difference value between the corrected second vehicle speed and the corrected third vehicle speed are calculated; a first ratio of the first difference value to the corrected first vehicle speed and a second ratio of the second difference value to the corrected second vehicle speed are calculated, and under the condition that the first ratio is smaller than or equal to a preset threshold value and the second ratio is smaller than or equal to the preset threshold value, the corrected third vehicle speed is determined as the target vehicle speed. According to the embodiment of the invention, the accuracy of the vehicle speed is improved, and the accuracy of a high-precision positioning system is further improved.

    本申请实施例提供了一种车速确定的方法及装置,包括获取车辆在目标载荷下的第一车速、第二车速、第三车速,以及分别对应的速度修正系数,分别基于第一车速、第二车速以及第三车速对应的速度修正系数修正第一车速、第二车速以及第三车速,计算修正后的第一车速与修正后的第三车速的第一差值,以及修正后的第二车速与修正后的第三车速的第二差值,计算第一差值与修正后的第一车速的第一比值,以及第二差值与修正后的第二车速的第二比值,在第一比值小于或等于预设阈值,且第二比值小于或等于预设阈值的情况下,将修正后的第三车速确定为目标车速。根据本申请实施例,提高了车速的准确性,进而提高了高精定位系统的准确性。


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    Title :

    Vehicle speed determination method and device


    Additional title:

    车速确定的方法、装置


    Contributors:
    LUO XINSHUAI (author) / LIU QI (author)

    Publication date :

    2023-01-31


    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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