The invention relates to the technical field of new energy vehicle control, and provides a whole vehicle driving torque control method and device of a new energy vehicle and the new energy vehicle. The method comprises the steps that the whole vehicle real-time driving power of the new energy vehicle and the maximum discharging power of a battery management system are monitored; based on the real-time driving power of the whole vehicle and the maximum discharging power of the battery management system, the power use trend of the whole vehicle is determined; when the new energy automobile has a power overrun trend, calculating a limit correction factor of the driving power of the whole automobile; and correcting the actual driving torque of the whole vehicle in advance based on the limit correction factor, and limiting the output of the driving torque of the whole vehicle. Overpower work of the motor is limited by controlling the driving torque output of the whole vehicle, so that the situation that the power battery is over-discharged due to overpower work of the motor is avoided, and the drivability problem that the service life of the battery is attenuated due to over-discharge of the battery and power is limited due to over-discharge is solved.

    本申请涉及新能源汽车控制技术领域,提供了一种新能源汽车的整车驱动扭矩控制方法、装置和新能源汽车。该方法包括:监测新能源汽车的整车实时驱动功率和电池管理系统的最大放电功率;基于整车实时驱动功率和电池管理系统的最大放电功率,确定整车功率使用趋势;当新能源汽车有功率超限趋势时,计算整车驱动功率的限制修正因子;基于限制修正因子对整车实际驱动扭矩进行提前修正,限制整车驱动扭矩的输出。本申请通过控制整车的驱动扭矩输出来限制电机超功率工作,以避免动力电池因电机超功率工作而发生电池过放的情况,从而克服了由于电池过放引起的电池寿命衰减及过放导致动力受限的驾驶性问题。


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    Titel :

    Whole vehicle driving torque control method and device of new energy vehicle and new energy vehicle


    Weitere Titelangaben:

    新能源汽车的整车驱动扭矩控制方法、装置和新能源汽车


    Beteiligte:
    YANG JING (Autor:in) / TENG GUOGANG (Autor:in) / HUANG DAFEI (Autor:in) / LIU XIAOFEI (Autor:in) / TANG RUYI (Autor:in)

    Erscheinungsdatum :

    2023-09-19


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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