The invention discloses a battery pack collision detection method and device of a new energy automobile and the new energy automobile, the battery pack collision detection method is used for performing collision detection on a battery pack in the new energy automobile, and the method comprises the following steps: acquiring a pressure value detected by a pressure sensor; the pressure change rate of the position where the pressure sensor is located is calculated, and when the pressure change rate exceeds a change rate threshold value, an instruction for prompting that the battery pack is collided is sent out; wherein the pressure sensor is arranged between two batteries of the battery pack; and/or between the shell of the battery pack and the battery. According to the invention, whether the batteries in the battery pack are stressed to extrude towards one direction or the battery pack is stressed to enable the two batteries to be tilted and separated to extrude the two ends separately, whether the battery pack is collided or not can be judged by calculating the pressure change rate according to the pressure value detected by the pressure sensor; and the detection accuracy and practicability can be further improved.

    本发明公开一种新能源汽车的电池包磕碰检测方法、装置及新能源汽车,电池包磕碰检测方法用于对新能源汽车内的电池包进行磕碰检测,方法包括:获取压力传感器所检测的压力值;计算压力传感器所处位置处的压力变化速率,当压力变化速率超过变化速率阈值时,发出提示电池包发生磕碰的指令;其中,压力传感器设置在电池包的两电池之间;和/或,电池包的壳体与电池之间。通过本发明,无论是电池包中的电池受力而往一个方向发生挤压,还是电池包受力而使得两电池翘起并分离而分开挤压两端,均能通过压力传感器检测的压力值计算压力变化速率来判断电池包是否受到磕碰,能进一步提高检测的准确性及实用性。


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    Title :

    Battery pack collision detection method and device of new energy automobile and new energy automobile


    Additional title:

    新能源汽车的电池包磕碰检测方法、装置及新能源汽车


    Contributors:
    CHEN ZHAOFAN (author) / YE HONG (author)

    Publication date :

    2024-05-10


    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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