The embodiment of the invention discloses a method and device for calculating the vehicle speed. The method comprises the steps that a steering transmission ratio function between a steering wheel and a steering wheel corner and the wheel speed of each wheel are obtained; according to the steering transmission ratio function and the wheel speeds of all the wheels, the wheel speeds of all the wheels are converted into equivalent speeds of the preset position of the automobile; calculating the data quality attribute of the equivalent speed of each wheel, wherein the data quality attribute comprises at least one of the following: the consistency of the equivalent speeds of two groups of paired wheels in the front-back direction; in the left-right direction, the equivalent speeds of the two groups of paired wheels are consistent; the equivalent speed of each wheel at the front and back moments is consistent; and performing weighted fusion calculation on the equivalent speed of each wheel according to the data quality attributes to obtain the reference speed of the automobile. According to the embodiment of the invention, the accuracy of vehicle speed calculation can be improved.
本申请实施例公开了一种计算车速的方法及装置,方法包括:获取转向轮和方向盘转角之间的转向传动比函数,以及各个车轮的轮速;根据所述转向传动比函数和所述各个车轮的轮速,将所述各个车轮的轮速分别转换为汽车预设位置的等效速度;计算所述各个车轮的等效速度的数据质量属性,所述数据质量属性包括以下至少一种:前后方向上,两组配对车轮等效速度的一致性;左右方向上,两组配对车轮等效速度的一致性;每个车轮前后时刻等效速度的一致性;根据所述数据质量属性对所述各个车轮的等效速度进行加权融合计算,得到汽车的参考速度。采用本申请实施例,可提升车速计算的准确度。
Method and device for calculating vehicle speed
一种计算车速的方法及装置
2023-01-13
Patent
Elektronische Ressource
Chinesisch
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 |
Europäisches Patentamt | 2021
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