The object of the present invention is to more effectively protect an engine and improve drivability by preventing in advance the occurrence of abnormal behavior such as fuel injection abnormality or knocking. According to the present invention, a motor control method of a mild hybrid vehicle comprises: an optimal control step of driving the vehicle by determining an output torque sharing ratio of an engine and a motor according to a preset sharing ratio when driver′s required torque is input; an abnormal behavior region learning step of learning driving conditions of the engine in which the engine output decreases due to abnormal behavior while driving the vehicle according to the optimal control step; and a motor torque increasing step of increasing output torque of the motor more than torque determined according to the preset sharing ratio when a driving condition of the engine enters the abnormal behavior region to depart from the abnormal behavior region.

    본 발명에 따른 마일드 하이브리드 차량의 모터 제어 방법은, 운전자의 요구 토크가 입력되면 기 설정된 분담 비율에 따라 엔진과 모터의 출력 토크 분담 비율을 결정하여 차량을 구동하는 최적 제어 단계, 최적 제어 단계에 따라 차량을 구동하면서 거동 이상으로 엔진의 출력 저하가 발생하는 엔진의 운전 조건을 학습하는 거동 이상 영역 학습 단계, 및 엔진의 운전 조건이 거동 이상 영역에 진입하면 모터의 출력 토크를 기 설정된 분담 비율에 따라 결정된 토크보다 더 증가시켜 거동 이상 영역에서 이탈시키는 모터 토크 증대 단계를 포함한다.


    Access

    Download


    Export, share and cite



    Title :

    CONTROL METHOD FOR MOTOR OF MILD HYBRID ELECTRIC VEHICLE


    Additional title:

    마일드 하이브리드 차량의 모터 제어 방법


    Contributors:
    YOUN HEE SU (author)

    Publication date :

    2021-03-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen





    Control method and apparatus for mild hybrid electric vehicle

    JANG HWA YONG | European Patent Office | 2020

    Free access

    CONTROL METHOD AND APPARATUS FOR MILD HYBRID ELECTRIC VEHICLE

    JANG HWA YONG | European Patent Office | 2020

    Free access

    CONTROL METHOD AND APPRATUS FOR MILD HYBRID ELECTRIC VEHICLE

    JANG HWA YONG | European Patent Office | 2020

    Free access