To provide a motor control device that can suitably actuate an integrated valve device even at low temperatures.SOLUTION: An integrated valve ECU 27 serving as a motor control device comprises a control unit 27a that controls a motor 26, which is a drive source for an integrated valve device 24 in a refrigeration cycle device. By controlling the integrated valve device 24 through the motor 26, this ECU switches a flow of a coolant in accordance with a drive mode for the refrigeration cycle device. The control unit 27a performs: a temperature estimation process in which the temperature of the integrated valve device 24 is estimated; a temperature determination process that determines whether the estimated temperature of the integrated valve device 24 is equal to or higher than a preset specific value or not; and a low-temperature process in which, in a case where the estimated temperature of the integrated valve device 24 is lower than the specific value, the rotational torque of the motor 26 is made higher than rotational torque used in a case where the estimated temperature of the integrated valve device 24 is equal to or higher than the specific value.SELECTED DRAWING: Figure 2

    【課題】低温時においても好適な統合弁装置の作動を実現できるモータ制御装置を提供する。【解決手段】モータ制御装置としての統合弁ECU27は、冷凍サイクル装置における統合弁装置24の駆動源であるモータ26を制御する制御部27aを備え、モータ26を通じた統合弁装置24の制御によって、冷凍サイクル装置の駆動モードに応じた冷媒の流れの切り替えを行う。そして、制御部27aは、統合弁装置24の温度を推定する温度推定処理と、統合弁装置24の推定温度が予め設定された規定値以上であるか否かを判定する温度判定処理と、統合弁装置24の推定温度が規定値未満の場合、モータ26の回転トルクを、統合弁装置24の推定温度が規定値以上の場合の回転トルクよりも高くする低温時処理とを行う。【選択図】図2


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    Titel :

    MOTOR CONTROL DEVICE, INTEGRATED VALVE DEVICE AND HEAT EXCHANGER


    Weitere Titelangaben:

    モータ制御装置、統合弁装置及び熱交換器


    Beteiligte:
    OTSUKA HIKARI (Autor:in) / KUWATA ARATA (Autor:in) / KAWADA SHINJI (Autor:in) / ITO TETSUYA (Autor:in)

    Erscheinungsdatum :

    2020-02-06


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    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 / F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS



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