Coolant flowing from a compressor passes through a heat exchanger and opening-degree adjustable type of expansion valves for heating, and an external heat exchanger. The coolant passing through the external heat exchanger is capable of passing through an expansion valve and a heat exchanger for cooling, and an expansion valve and a heat exchanger for cooling a battery. A grille shutter to change an introduction state of traveling air is provided in front of the external heat exchanger. When pressure of the coolant (particularly, pressure of the coolant at a timing after the coolant passes through the external heat exchanger) is a specified pressure or lower, the grille shutter is closed, whereby the heat-exchange performance of the external heat exchanger is lowered.


    Access

    Download


    Export, share and cite



    Title :

    Electric vehicle HVAC system which cools battery and controls grille shutter based on coolant pressure


    Contributors:

    Publication date :

    2024-01-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



    VEHICLE GRILLE SHUTTER

    MIYATA KENTARO / HAMAMURA TAKASHI / SATO MORITAKA | European Patent Office | 2019

    Free access

    VEHICLE GRILLE SHUTTER

    MIYATA KENTARO / HAMAMURA TAKASHI / SATO MORITAKA | European Patent Office | 2019

    Free access

    GRILLE SHUTTER SYSTEM AND FUEL BATTERY VEHICLE

    HIRAMITSU YUSUKE | European Patent Office | 2019

    Free access

    GRILLE SHUTTER ASSEMBLY METHOD AND GRILLE SHUTTER

    WATARI TOMOYUKI | European Patent Office | 2016

    Free access

    VEHICLE GRILLE SHUTTER DEVICE

    SAKANE HIROYUKI | European Patent Office | 2019

    Free access