An embodiment of the present invention provides a fuel tank venting system for a hybrid vehicle. A fuel tank venting system for a hybrid vehicle comprises: a first flow path configured to deliver fuel, vaporized from a fuel tank, to a canister; a second flow path configured to deliver air, used for cooling a high voltage battery, to the canister; a first three-way valve disposed on the second flow path and configured to control opening and closing of a first discharge port for releasing pressure of the fuel tank; a second three-way valve disposed on the second flow path and configured to control opening and closing of a second discharge port for flowing the air, used for cooling the high voltage battery, into the canister or discharging the air, used for cooling the high voltage battery, outside the vehicle; and a control unit configured to control the first three-way valve and the second three-way valve based on the pressure in the fuel tank and on whether the vehicle is driven in an EV mode. The fuel tank venting system for the hybrid vehicle may increase the amount of the air driven by the high voltage battery, thereby efficiently cooling the high voltage battery.

    본 발명의 실시예에 따른 하이브리드 차량용 연료탱크 밴팅 시스템 을 제공한다. 하이브리드 차량용 연료탱크 밴팅 시스템은 연료탱크에서 기화된 연료를 캐니스터로 전달하는 제1 유로, 고전압 배터리의 냉각을 위해 사용된 공기를 상기 캐니스터로 전달하는 제2 유로, 상기 제2 유로 상에 배치되어 상기 연료탱크의 압력을 해소하기 위한 제1 배출구의 개폐를 제어하는 제1 삼방 밸브, 상기 제2 유로 상에 배치되어 상기 고전압 배터리를 냉각한 공기를 상기 캐니스터로 유동시키거나 상기 고전압 배터리를 냉각한 공기를 외부로 배출하는 제2 배출구의 개폐를 제어하는 제2 삼방 밸브 및 상기 연료탱크 내의 압력 및 차량의 EV 모드 구동 여부에 기초하여 상기 제1 삼방 밸브 및 상기 제2 삼방 밸브를 제어하는 제어부를 포함할 수 있다.


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    Title :

    Fuel tank venting system for hybrid electric vehicle


    Additional title:

    하이브리드 차량용 연료탱크 밴팅 시스템


    Contributors:
    KIM CHANG HAN (author) / OH MAN SEOK (author) / KIM SEOK LAE (author) / PARK CHANG JUN (author) / KIM JONG KI (author)

    Publication date :

    2021-05-21


    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 / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / F16K VALVES , Ventile



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