A method for neutral coasting control based on fuel injection condition reinforcement, which is applied to a neutral coasting control system (10), comprises: fuel injection condition reinforcement control steps (S20-S30) of delaying the fuel injection of a fuel injector for a period of time under fuel injection stop conditions and then stopping the delay of the fuel injection under fuel injection stop emergency cancellation conditions and fuel injection stop cancellation conditions; and fuel injection start control steps (S40-S70) of establishing the direct connection state of a transmission and then determining whether to stop and start the fuel injection in the overrun state of the engine, when a controller (11) detects the operation or execution of neutral coasting control (NCC) of a vehicle, or stepping on the brake pedal of a pedal system (5) by which the operation is changed to NCC cancellation. Therefore, the method can acquire an effect of increasing fuel efficiency by preventing unnecessary fuel injection through delay and restriction of the start of fuel injection, and in particular, can quickly respond to the will of the driver to accelerate which can occur at the time of NCC cancellation based on determination of various situations to which the fuel injection stop cancellation conditions and the fuel injection stop emergency cancellation conditions are applied.

    본 발명의 중립 코스팅 제어 시스템(10)에 적용된 연료분사조건 강화방식 중립 코스팅 제어 방법은 차량의 NCC(Neutral Coasting Control) 동작 또는 실행 또는 작동의 상태로부터 NCC 해제로 전환되는 페달 시스템(5)의 브레이크페달 눌림이 컨트롤러(11)에서 검출되면, 연료분사 중지조건으로 연료 인젝터의 연료분사를 일정시간 지연시킨 후 연료분사중지 긴급해제(Abort)조건과 연료분사중지 해제조건으로 연료분사 지연을 중단하는 연료분사조건 강화 제어(S20~S30), 변속기 직결 상태 확립 후 엔진 오버런(overrun)의 상태로 연료분사의 중지와 개시 여부가 판단되는 연료분사개시 제어(S40~S70)가 포함됨으로써 연료분사개시의 지연 및 제한을 통해 불필요한 연료 분사 방지로 연비 개선 효과를 획득하고, 특히 연료분사중지 해제조건 및 긴급해제(Abort)조건을 적용한 다양한 상황 판단으로 NCC 해제 시점에서 발생될 수 있는 운전자의 가속의지에도 신속하게 반응하는 특징을 구현한다.


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    Titel :

    Method for Neutral Coasting Control Based On Fuel Injection Condition Reinforcement and Neutral Coasting Control System Thereof


    Weitere Titelangaben:

    연료분사조건 강화방식 중립 코스팅 제어 방법 및 시스템


    Beteiligte:
    BYUN JUNG SUP (Autor:in) / LEE SEUNG WOO (Autor:in) / WON CHAN HEE (Autor:in)

    Erscheinungsdatum :

    29.04.2021


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    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 / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen



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