A method for diagnosing a leak in the fuel system of a vehicle comprises: a step in which a controller determines whether a vehicle is running by operating an engine as a monitoring condition for leak diagnosis of a fuel system; and a step of determining whether the controller satisfies an additional monitoring condition for monitoring a flow rate of the fuel system when the engine is determined to be operating and pressure inside a fuel tank included in the fuel system is lower than a target value. The additional monitoring condition can be a condition to prevent false diagnosis of a leak in the fuel system due to disturbance during running of the vehicle.

    차량 연료 시스템의 리크 진단 방법은, 제어기가 연료 시스템의 리크 진단을 위한 감시 조건인 엔진이 작동하여 차량이 주행 중인 지 여부를 판단하는 단계와, 엔진이 작동되는 것으로 판단되고 연료 시스템에 포함된 연료 탱크 내부의 압력이 목표 값보다 작을 때, 제어기가 연료 시스템의 유출량을 감시하기 위한 추가 감시 조건을 만족하는 지 여부를 판단하는 단계를 포함한다. 추가 감시 조건은 차량의 주행 중 외란에 의한 연료 시스템의 리크의 오진단을 방지하는 조건일 수 있다.


    Access

    Download


    Export, share and cite



    Title :

    Method and device for diagnosing leak of fuel system in vehicle


    Additional title:

    차량 연료 시스템의 리크 진단 방법 및 그 진단 장치


    Contributors:
    KIM SE GEUN (author)

    Publication date :

    2017-03-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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



    METHOD FOR DIAGNOSING LEAK OF A FUEL TANK

    KOO BON CHANG | European Patent Office | 2017

    Free access

    Method and system for diagnosing a vehicle oil leak

    YOON YOUNG MIN / YUN JAE YEOL | European Patent Office | 2023

    Free access

    VEHICLE DIAGNOSING DEVICE, VEHICLE DIAGNOSING SYSTEM, AND MOVING BODY DIAGNOSING DEVICE

    MAEDA HIKARU / YAMAHARA DAISUKE / MITSUSHIMA KOICHI | European Patent Office | 2021

    Free access

    Method of diagnosing oil leak of engine clutch in hybrid electric vehicle

    SOH HYUN JUN | European Patent Office | 2019

    Free access

    METHOD OF DIAGNOSING OIL LEAK OF ENGINE CLUTCH IN HYBRID ELECTRIC VEHICLE

    SOH HYUN JUN | European Patent Office | 2018

    Free access