The invention provides a method for acquiring the rotating speed of an output shaft of a vehicle and a method for controlling the vehicle. Comprising the steps that the running state of a vehicle at the current moment, an output shaft rotating speed measured value and the change stage of the output shaft rotating speed measured value are obtained, and the current running state, the current output shaft rotating speed measured value and the current change stage are obtained; determining whether the vehicle meets the following first preset conditions at the current moment: the current running state is a non-creeping state, the current output shaft rotating speed measurement value is greater than 0 and less than or equal to a preset threshold value, and the current change stage is a descending stage; and under the condition that the vehicle meets all the first preset conditions, it is determined that the rotation speed correction stage is started, the output shaft rotation speed is calculated through an interpolation algorithm and the current output shaft rotation speed measurement value, and the output shaft rotation speed is the corrected output shaft rotation speed. The problem that the recognition precision of the rotating speed sensor is low when the rotating speed of the output shaft is reduced to the low rotating speed interval, namely the recognized rotating speed of the output shaft is inaccurate is solved.

    本申请提供了一种车辆的输出轴转速的获取方法、车辆的控制方法。包括:获取车辆在当前时刻的运行状态、输出轴转速测量值以及输出轴转速测量值所处的变化阶段,得到当前运行状态、当前输出轴转速测量值以及当前变化阶段,确定车辆在当前时刻是否满足以下第一预设条件:当前运行状态为非蠕行状态,当前输出轴转速测量值大于0且小于等于预设阈值、当前变化阶段处于下降阶段;在车辆满足所有的第一预设条件的情况下,确定进入转速修正阶段,并采用插值算法和当前输出轴转速测量值计算输出轴转速,输出轴转速为修正后的输出轴转速。解决了转速传感器在输出轴转速下降至低转速区间时识别精度较低,即识别得到的输出轴转速不准确的问题。


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    Title :

    Acquisition method of rotating speed of output shaft of vehicle and control method of vehicle


    Additional title:

    车辆的输出轴转速的获取方法、车辆的控制方法


    Contributors:
    GENG XIN (author) / DENG JINTAO (author) / JIANG LIANGCHAO (author) / LYU WENXIANG (author) / WANG DONG (author)

    Publication date :

    2024-10-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16H Getriebe , GEARING / 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 / G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes



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