The invention discloses a whole-vehicle mass estimation method for an extended-range electric vehicle, and the method is characterized in that the method comprises the following steps: S1, basic signal calculation: calculating a wheel-side driving force and a whole-vehicle acceleration; s2, performing high-pass filtering, and calculating a wheel edge driving force and a whole vehicle acceleration high-frequency component; and S3, least square estimation: estimating the mass of the whole vehicle by using the least square. The estimated mass of the whole vehicle can be used for driving force pre-control of functions such as crawling working conditions and self-adaptive cruise, the vehicle speed overshoot is reduced, and the vehicle speed stabilizing time is shortened.

    本发明公开了一种增程式电动汽车整车质量估计方法,其特征在于,包括以下步骤:S1基础信号计算,计算轮边驱动力和整车加速度;S2高通滤波,计算轮边驱动力和整车加速度高频分量;S3最小二乘估计,使用最小二乘估计整车质量。本发明估计出整车质量可用于蠕行工况、自适应巡航等功能的驱动力预控,降低车速超调量、减少车速稳定时间。


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    Title :

    Whole-vehicle mass estimation method for extended-range electric vehicle


    Additional title:

    一种增程式电动汽车整车质量估计方法


    Contributors:
    LI SHUHENG (author) / HE ZHANGBO (author) / XIAN LI (author) / ZENG DAOXIANG (author) / ZHANG XIALONG (author) / PENG LONGFA (author) / ZHANG ZHENGLIAN (author) / XIE WEI (author)

    Publication date :

    2024-05-10


    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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