The present invention relates to an engine control method of a hybrid electric vehicle, which comprises the following steps of: detecting a state of charge (SOC) of a main battery of the hybrid electric vehicle; and controlling engine efficiency of the hybrid electric vehicle at the lowest point when the main battery is in a fully-charged state or a charging-limiting state as a result of detecting the SOC of the main battery. According to the present invention, the main battery of the hybrid electric vehicle is prevented from being overcharged, and a braking force of an engine brake can be secured.

    본 발명은 하이브리드 전기차량의 메인 배터리의 상태를 확인하는 단계 및 상기 메인 배터리의 상태를 확인하는 단계에서의 확인 결과, 상기 메인 배터리의 SOC(State of Charge)가 만충 상태거나 충전 제한 상태인 경우, 상기 하이브리드 전기차량의 엔진 효율을 최저점으로 제어하는 단계를 포함하는 하이브리드 전기차량의 엔진 제어 방법으로서, 본 발명에 의하면, 하이브리드 전기차량에서 메인 배터리의 과충전을 방지하고, 엔진 브레이크의 제동력을 확보할 수 있게 한다.


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    Title :

    ENGINE CONTROL METHOD OF HYBRID ELECTRIC VEHICLE


    Additional title:

    하이브리드 전기차량의 엔진 제어 방법


    Contributors:
    AHN HYUN MO (author) / LEE MIN KYU (author) / WON DOO IL (author) / HEO YUN CHAN (author)

    Publication date :

    2019-07-08


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



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