The invention discloses a controller of a vehicle air conditioner and a method for controlling the vehicle air conditioner and relates to the field of a vehicle support equipment manufacturing technology; the controller comprises a microcomputer controller for controlling the air conditioner, a PTC (Positive Temperature Coefficient) heating element, a draught fan for supplying wind to the PTC heating element and a compressor for refrigeration; the microcomputer controller includes three power regulation transistors for respectively controlling the draught fan and the compressor, and the output ends of the transistors are respectively connected with the input ends of the transistors, so that pulse width-modulated signals are provided to said three power regulation transistors; the controlling method is characterized in that a pulse width-modulated signal which is gradually increased in duty ratio is provided to the power regulation transistor by the microcomputer controller, so that the starting current of the PTC heater is steadily increased. The controller can solve the problem that an ordinary relay contact is difficult to bear because the PTC heater is relatively large in initial starting current, and the system is affected in operating steadiness and reliability or collapsed because the power system of the vehicle is impacted due to large current.


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    Titel :

    Controller of vehicle air conditioner and controlling method thereof


    Beteiligte:
    GAO CHAOWEN (Autor:in) / GUO BIN (Autor:in)

    Erscheinungsdatum :

    2015-05-27


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    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



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