The invention provides a speed limit control method and device of a vehicle and the vehicle, and the method comprises the steps: determining the allowable output power of a power system when the power system of the vehicle breaks down; determining the output power of the vehicle according to the allowable output power; determining the allowable running speed of the vehicle according to the output power of the vehicle; and determining the upper limit value of the actual running speed of the vehicle according to the allowable running speed and a preset speed threshold value. The upper limit value of the actual running speed of the vehicle is determined according to the relation between the allowable speed and the preset speed threshold value, so that the real-time running speed of the vehicle is limited, the deterioration degree of faults of a power system of the vehicle is reduced, and meanwhile, certain running capacity is achieved; and classification limitation on the vehicle driving speed according to the fixed fault grade and the driving working condition is avoided, so that the driving safety of the vehicle is improved.

    本发明提出一种车辆的限速控制方法及装置和车辆,方法包括:当车辆的动力系统发生故障时,确定动力系统的允许输出功率;根据允许输出功率确定车辆的输出功率;根据车辆的输出功率确定车辆的允许行驶速度;根据允许行驶速度和预设速度阈值,确定车辆实际行驶速度的上限值。本发明通过根据允许速度与预设速度阈值的关系,确定车辆实际行驶速度的上限值,以此对车辆的行驶实时行驶速度进行限制,从而降低车辆动力系统故障的恶化程度,同时具有一定的行驶能力,避免根据固定故障等级和行驶工况对车辆行驶速度进行分类限制,从而提高车辆的行驶安全。


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    Title :

    Vehicle speed limit control method and device and vehicle


    Additional title:

    车辆的限速控制方法及装置和车辆


    Contributors:

    Publication date :

    2024-01-05


    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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