The invention relates to the technical field of new energy automobiles, and in particular to a new energy automobile speed limiting control method and an automobile. The new energy automobile speed limiting control method comprises the steps of obtaining the real-time rotating speed of a motor, and comparing and judging the size between the real-time rotating speed and a rotating speed threshold value; inputting a speed limiting value corresponding to a rotating speed instruction to a PI regulator according to the comparison result, and enabling the PI regulator to output a torque regulating value; and adding the torque regulating value and an accelerator instruction to obtain a torque instruction, and controlling the automobile speed according to the torque instruction. By setting the rotating speed threshold value, the forward speed limit and the reverse speed limit of the automobile can be realized, and the forward speed limit and the reverse speed limit do not cause buffeting; thetorque instruction is adjusted according to the torque regulating value, even if a driver steps on a large accelerator all the time, a motor controller limits the speed of the automobile according tothe adjusted torque instruction, overspeed running of the automobile is avoided, speed limiting response is timely and rapid, and normal running of the automobile cannot be affected by the speed limiting function.

    本发明涉及新能源汽车技术领域,特别涉及一种新能源汽车限速控制方法及汽车,其中,一种新能源汽车限速控制方法,包括获取电机的实时转速,并对比判断实时转速与转速阈值之间的大小;根据对比结果输入与转速指令对应的限速值至PI调节器,PI调节器输出扭矩调节值;将扭矩调节值与油门指令相加得到扭矩指令,根据扭矩指令控制汽车速度。通过设置转速阈值,能够实现汽车前进限速和汽车倒车限速,且前进限速和倒车限速不会造成抖震;扭矩调节值对扭矩指令进行调节,即使司机一直踩大油门,电机控制器根据调节后的扭矩指令对汽车进行限速,不但避免了汽车超速行驶,限速响应也及时迅速,且限速功能不会影响车辆的正常行驶。


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    Titel :

    New energy automobile speed limit control method and automobile


    Weitere Titelangaben:

    一种新能源汽车限速控制方法及汽车


    Beteiligte:
    CHEN WENLONG (Autor:in) / SU MING (Autor:in) / ZHOU QINGSHAN (Autor:in) / ZHANG DEPING (Autor:in) / NING RONGHUA (Autor:in)

    Erscheinungsdatum :

    2020-11-13


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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