The invention provides a vehicle driving protection method and system and a vehicle, and belongs to the technical field of vehicles. The method comprises the steps that when the vehicle is driven on a non-bumpy road surface, the conversion coefficient of the vehicle is dynamically updated based on the real-time motor rotating speed of the vehicle; wherein the conversion coefficient is the ratio of the rotating speed of the motor to the wheel speed; when the vehicle runs on a bumpy road surface, a target conversion coefficient obtained by last update corresponding to the current first gear of the vehicle is called; based on the target conversion coefficient, the current first motor rotating speed and the current first wheel speed, whether a torque reduction strategy needs to be triggered or not is determined; wherein the torque reduction strategy is used for reducing the motor output torque of the vehicle; and if yes, executing a torque reduction strategy to reduce the impact force of the bumpy road surface on the vehicle. According to the protection method provided by the invention, the conversion coefficient of the vehicle is updated in real time, and the torque reduction strategy is accurately triggered, so that the impact force of a bumpy road surface on the vehicle is reduced, and mechanical faults or hardware damage is avoided.

    本发明提供了一种车辆行驶的保护方法、系统及车辆,属于车辆技术领域,所述方法包括:在所述车辆行驶在非颠簸路面时,基于车辆的实时电机转速,动态更新车辆的转换系数;其中,转换系数为电机转速与车轮轮速的比值;在车辆行驶在颠簸路面时,调取与车辆的当前第一挡位对应最近一次更新得到的目标转换系数;基于目标转换系数、当前第一电机转速以及当前第一车轮轮速,确定是否需要触发降扭策略;其中,降扭策略用于降低车辆的电机输出扭矩;若是,则执行降扭策略,以降低颠簸路面对车辆的冲击力。通过本发明所提供的保护方法,通过实时更新车辆的转换系数,以及精准触发降扭策略,进而降低颠簸路面对车辆的冲击力,避免造成机械故障或硬件损坏。


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    Title :

    Vehicle driving protection method and system and vehicle


    Additional title:

    一种车辆行驶的保护方法、系统及车辆


    Contributors:
    CAO BOSEN (author) / WANG YANZHE (author) / WANG SHIWEI (author) / FU JIAWEI (author) / SI GUOHAO (author)

    Publication date :

    2024-08-13


    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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