In pressure increasing control for raising a pressure within a sealed type fuel tank from an excessive negative pressure to a low negative pressure, an opening or closing operation of a sealing valve, when the interior of a vehicle is very quiet, would cause the working noise thereof to be transmitted to a passenger, thereby deteriorating the noise characteristic. In order to solve this problem, a control unit 32, when the pressure within a fuel tank 14 is below a predetermined negative pressure P VL near a saturated vapor pressure of the fuel and an interior noise level is equal to or greater than a threshold value, operates a sealing valve 28 to thereby raise the pressure of the fuel tank 14 to a normal negative pressure region P L to P U which is higher than the predetermined negative pressure P VL .


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    Titel :

    PRESSURE CONTROL APPARATUS OF FUEL TANK FOR VEHICLE


    Weitere Titelangaben:

    DRUCKSTEUERUNGSVORRICHTUNG FÜR DEN KRAFTSTOFFTANK EINES FAHRZEUGS
    APPAREIL DE RÉGULATION DE PRESSION DE RÉSERVOIR À CARBURANT POUR VÉHICULE


    Beteiligte:
    FUKUI KEITA (Autor:in) / NISHIMURA YUSAKU (Autor:in) / AKITA TATSUHIKO (Autor:in)

    Erscheinungsdatum :

    01.05.2019


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    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



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