The invention relates to the technical field of vehicle control, and provides a vehicle speed limit control method and system. The method comprises the steps that when the current vehicle speed is between a first set vehicle speed and a second set vehicle speed, a preset torque value used for buffering the vehicle speed increasing rate serves as a target torque value to be output to a motor of the vehicle so as to preliminarily limit the vehicle speed, and the first set vehicle speed is smaller than the second set vehicle speed; the second set vehicle speed is smaller than a preset maximum vehicle speed limit value; and when the current vehicle speed is increased to be larger than the second set vehicle speed, a limited torque value is determined according to the current vehicle speed and the maximum vehicle speed limit value, and the smaller one of the limited torque value and the torque demand value of the driver serves as the target torque value to be output to the motor so as to further limit the vehicle speed. According to the method, the speed limit adjusting process is buffered, so that the adjusting process is softer, and the drivability of the vehicle in the speed limit stage is guaranteed.

    本发明涉及车辆控制技术领域,提供一种车辆限速控制方法及系统。本发明所述的方法包括:在当前车速处于第一设定车速和第二设定车速之间时,将预设的用于缓冲车速增加速率的预调扭矩值作为目标扭矩值输出给车辆的电机,以初步限制车速,其中所述第一设定车速小于所述第二设定车速,且所述第二设定车速小于预设最高车速限值;以及在所述当前车速增加至大于所述第二设定车速时,根据所述当前车速与所述最高车速限值确定限制扭矩值,并将所述限制扭矩值与驾驶员扭矩需求值中的较小值作为所述目标扭矩值输出给所述电机,以进一步限制车速。本发明对限速调节过程进行了缓冲处理,使得调节过程更为柔和,进而保证了车辆在限速阶段的驾驶性。


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    Titel :

    Vehicle speed limit control method, controller and system


    Weitere Titelangaben:

    车辆限速控制方法、控制器及系统


    Beteiligte:
    WANG YINLEI (Autor:in) / ZHANG SHUAI (Autor:in) / LI YUSHAN (Autor:in) / LIU XIU (Autor:in) / LI YAN (Autor:in) / LIU YANG (Autor:in)

    Erscheinungsdatum :

    2022-04-12


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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