In an embodiment of the present invention, provided is an algorithm in which a driving mode of an electrical vehicle is changed depending on a driving state and a road state by controlling a difference in speed reduction ratios of motors for front and rear wheels so as to realize an effect such as a multi-stage shift. According to the embodiment of the present invention, an electrical vehicle control algorithm using a difference in speed reduction ratios between front and rear motors comprises the steps of: initializing an electrical vehicle and starting the same for driving; determining, by a control unit, whether the intensity of an electrical signal of a pedal increasing in proportion to an operating intensity of an accelerator pedal is proportional to the number of revolutions of a motor or not; starting, by the control unit, a speed mode, when the intensity of the electrical signal of the pedal is proportional to the number of revolutions of the motor; determining, by the control unit, in a speed mode whether the speed of the electrical vehicle is less than a reference speed of a speed mode or not; controlling, by the control unit, the power of the front and rear motors in a low speed mode, when the speed of the electrical vehicle is less than the reference speed of the speed mode; and controlling, by the control unit, the power of the front and rear motors in a high speed mode, when the speed of the electrical vehicle is equal to or more than the reference speed of the speed mode.

    본 발명의 일실시 예는 전륜에 대한 모터와 후륜에 대한 모터의 감속비 차이와 각 모터에 공급되는 전력량을 제어함으로서 다단변속과 같은 효과를 구현하여, 주행상태 및 도로상태에 따라 전기차의 주행 모드가 변경되도록 하는 알고리즘을 제공한다. 본 발명의 실시 예에 따른 전후방 모터의 감속비 차이를 이용한 전기차 제어 알고리즘은 전기차를 초기화 및 주행 시작하는 단계, 제어부에서 가속페달의 조작 강도에 비례하여 증가하는 페달전기신호 강도와 모터회전수가 비례하는지 판단하는 단계, 페달전기신호 강도와 모터회전수가 비례하는 경우, 제어부가 스피드모드(speed mode)를 시작하는 단계, 스피드모드에서 제어부가 전기차 속도는 스피드모드기준속도 미만인지 판단하는 단계, 전기차 속도가 스피드모드기준속도 미만인 경우, 제어부가 로우스피드모드(low speed mode)로 전방모터 또는 후방모터의 동력을 제어하는 단계, 전기차 속도가 스피드모드기준속도 이상인 경우, 제어부가 하이스피드모드(high speed mode)로 전방모터 또는 후방모터의 동력을 제어하는 단계를 포함한다.


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    Titel :

    A method for controlling an vehicle using difference of speed reduction ratio


    Weitere Titelangaben:

    전후방 모터의 감속비 차이를 이용한 전기차 제어 알고리즘


    Beteiligte:
    CHA HYUN ROK (Autor:in) / LEE SUNG HO (Autor:in) / OH KWANG KYO (Autor:in)

    Erscheinungsdatum :

    17.05.2017


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

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



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