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    • 4. 发明授权
    • Control apparatus for air conditioner
    • 空调控制装置
    • US5242325A
    • 1993-09-07
    • US914599
    • 1992-07-20
    • Harunobu Nukushina
    • Harunobu Nukushina
    • F24F11/02F24F13/15
    • F24F1/0011
    • An air conditioner has a body casing provided with an air inlet port and an air blow-off port, a vertical wind shifting element disposed in the body casing for vertically shifting a blow-off direction of wind through the blow-off port, a horizontal wind shifting element disposed in the body casing for horizontally shifting a blow-off direction of wind through a blow-off port and a control apparatus for controlling the vertical and horizontal wind shifting elements. The control apparatus comprises a first driving circuit for driving the vertical wind shifting element, a second driving circuit for driving the horizontal wind shifting element, and a control unit for controlling operations of the first and second driving circuits. A switching circuit for switching operations of the vertical and horizontal wind shifting elements may be further provided. The first driving circuit is controlled to drive the vertical wind shifting element to blow off the wind with a predetermined time interval and the second driving circuit is controlled to drive the horizontal wind shifting element with a predetermined time interval after once fixing the vertical wind shifting element. Thereafter, the vertical wind shifting element is driven to blow out the wind in a mode different from a previous blow-off mode.
    • 空调机具有设置有进气口和排气口的主体外壳,设置在主体壳体中的垂直风向移动元件,用于垂直移动通过​​吹出口的风向吹出方向,水平方向 风挡元件设置在主体壳体中,用于通过吹出口水平移动风吹出方向,以及用于控制垂直和水平风向移动元件的控制装置。 控制装置包括用于驱动垂直风向移动元件的第一驱动电路,用于驱动水平风向移动元件的第二驱动电路,以及用于控制第一和第二驱动电路的操作的控制单元。 可以进一步提供用于切换垂直和水平风向移动元件的操作的切换电路。 控制第一驱动电路以驱动垂直换挡元件以预定的时间间隔吹风,并且第二驱动电路被控制以在一旦固定垂直换挡元件之后以预定的时间间隔驱动水平换挡元件 。 此后,垂直风向移动元件被驱动以与先前的吹离模式不同的模式吹出风。
    • 6. 发明授权
    • Current detection method and control apparatus for electric motor
    • 电动机电流检测方法及控制装置
    • US06914409B2
    • 2005-07-05
    • US10472906
    • 2002-03-25
    • Harunobu Nukushina
    • Harunobu Nukushina
    • G01R19/00H02P6/00H02P6/18H02P21/00H02P27/04H02P5/34G05B11/28H02M3/335H02P7/42
    • H02P6/28
    • A current detection method for an electric motor which detects phase currents of the electric motor driven by a power converter that provides ON/OFF control of bridge-connected switching elements, based on a pulse-width modulation excitation pattern, to convert a direct current into poly-phase alternating currents. The method includes connecting a current detecting element which produces a signal corresponding to a current value at the direct current side of the power converter and changing the pulse-width modulation excitation pattern by executing a shift of time of any of the phases of the pulse-width modulation excitation pattern so that a signal directly or indirectly corresponding to the phase currents is produced at the current detecting element. The method also includes detecting the phase currents of the electric motor based on the signal produced at the current detecting element and the excitation pattern which has been changed.
    • 一种电动机的电流检测方法,其检测由电力转换器驱动的电动机的相电流,所述电力转换器基于脉冲宽度调制激励模式,提供桥接开关元件的ON / OFF控制,以将直流转换成 多相交流电流。 该方法包括连接电流检测元件,该电流检测元件产生对应于功率转换器的直流侧的电流值的信号,并通过执行脉冲宽度调制激励模式的任何相位的移位来改变脉宽调制激励模式, 宽度调制激励模式,使得在电流检测元件处产生直接或间接对应于相电流的信号。 该方法还包括基于在电流检测元件产生的信号和已经改变的激励模式来检测电动机的相电流。