The invention relates to the technical field of battery power control, and discloses a pre-undervoltage power control method, a pre-undervoltage power control device, pre-undervoltage power control equipment and a storage medium. Determining a pre-under-voltage upper limit threshold, a pre-under-voltage lower limit threshold and a pre-under-voltage power lower limit threshold corresponding to each single cell; the current voltage value of each single cell is obtained, and when the minimum current voltage value is not larger than the pre-undervoltage voltage upper limit threshold value corresponding to the corresponding single cell, the smaller power value in the current actual power value and the current allowable power value of the vehicle is determined as the current allowable power value; and performing power reduction control on the current allowable power value according to a preset power reduction rate. According to the technical scheme, the allowable power of the vehicle can be changed along with the actual power, the situation that the actual power is still increased when the allowable power is reduced is effectively prevented, and the driving experience of the whole vehicle is not affected.

    本申请涉及电池功率控制技术领域,公开了一种预欠压功率控制方法、装置、设备及存储介质,该方法包括:根据车辆的电池包内每个单体电芯的当前温度值所处的温度范围,确定每个单体电芯对应的预欠压电压上限阈值、预欠压电压下限阈值与预欠压功率下限阈值;获取每个单体电芯的当前电压值,当最小当前电压值不大于相应的单体电芯所对应的预欠压电压上限阈值时,将车辆的当前实际功率值与当前允许功率值中较小功率值确定为当前允许功率值;按照预设降功率速率,对当前允许功率值进行降功率控制。应用本申请的技术方案,能够使车辆的允许功率跟随实际功率进行变化,有效防止允许功率降低时实际功率还在上升的情况,且整车驾驶体验不会受到影响。


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    Title :

    Pre-undervoltage power control method, device and equipment and computer readable storage medium


    Additional title:

    预欠压功率控制方法、装置、设备及计算机可读存储介质


    Contributors:
    YIN HONGFEI (author) / LI KAI (author) / XU XIAOYA (author) / YUE HONGYA (author) / JIE LIZHU (author)

    Publication date :

    2024-06-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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