Air conditioner
    1.
    发明授权
    Air conditioner 失效
    冷气机

    公开(公告)号:US06725681B2

    公开(公告)日:2004-04-27

    申请号:US10304624

    申请日:2002-11-26

    IPC分类号: F25B100

    CPC分类号: B60H1/3208 B60H1/3225

    摘要: An air conditioner for air conditioning the interior of a compartment includes a compressor and an electric motor. The compressor compresses refrigerant gas and changes the displacement. The electric motor drives the compressor. A motor controller rotates the motor at a constant reference speed. A detection device detects information related to the thermal load on the air conditioner. A current sensor detects the value of current supplied to the electric motor. A controller controls the compressor based on the detected thermal load information and the detected current value. The controller computes a target torque of the compressor based on the thermal load information. In accordance with the computed target torque, the controller computes a target current value to be supplied to the electric motor. The controller further controls the displacement of the compressor such that the detected current value matches the target current value.

    摘要翻译: 用于空调室内的空调包括压缩机和电动马达。 压缩机压缩制冷剂气体并改变位移。 电动机驱动压缩机。 电机控制器以恒定的参考速度旋转电机。 检测装置检测与空调的热负荷有关的信息。 电流传感器检测提供给电动机的电流值。 控制器基于检测到的热负载信息和检测到的电流值来控制压缩机。 控制器基于热负载信息计算压缩机的目标转矩。 根据计算出的目标转矩,控制器计算要提供给电动机的目标电流值。 控制器还控制压缩机的位移,使得检测到的电流值与目标电流值匹配。

    Motor Apparatus and control method therefor
    3.
    发明授权
    Motor Apparatus and control method therefor 失效
    电机及其控制方法

    公开(公告)号:US06670784B2

    公开(公告)日:2003-12-30

    申请号:US10165456

    申请日:2002-06-07

    IPC分类号: H02P146

    CPC分类号: H02P6/21

    摘要: A speed control unit computes a instructed current based on an error between a instructed speed and an estimated speed. A current control unit outputs a reference voltage corresponding to an error between the instructed current and a detected motor current. By adding estimated speed electromotive force to the reference voltage, a motor-applied voltage is generated and a synchronous motor is driven. An estimation unit computes the estimated position, estimated speed, and estimated speed electromotive force of the synchronous motor. By supplying a motor current of a predetermined pattern when the synchronous motor begins to be driven, the rotor of the synchronous motor is set in a default position. The default position is used as an initial value of an estimated position.

    摘要翻译: 速度控制单元基于指示速度和估计速度之间的误差来计算指示的电流。 电流控制单元输出与指示电流和检测到的电动机电流之间的误差相对应的参考电压。 通过将估计的速度电动势添加到参考电压,产生电动机施加的电压并驱动同步电动机。 估计单元计算同步电动机的估计位置,估计速度和估计速度电动势。 当同步电动机开始被驱动时,通过提供预定模式的电动机电流,将同步电动机的转子设定在默认位置。 默认位置用作估计位置的初始值。

    Hybrid compressor system
    5.
    发明授权
    Hybrid compressor system 失效
    混合压缩机系统

    公开(公告)号:US06755030B2

    公开(公告)日:2004-06-29

    申请号:US10446415

    申请日:2003-05-28

    IPC分类号: F25B2700

    CPC分类号: F04B27/0895 F04C2240/45

    摘要: A hybrid compressor system has a hybrid compressor for compressing refrigerant. The compressor is selectively driven by one of a first drive source and a second drive source. The hybrid compressor system also includes a first one-way clutch, a driver for driving the second drive source, a sensor for detecting a rotational state of the first drive source and a controller. The first one-way clutch is arranged on a first power transmission path between the compressor and the first drive source for permitting power transmission from the first drive source to the compressor. The controller is electrically connected to the driver and the sensor. When a drive source of the compressor is switched from the second drive source to the first drive source, the controller orders the driver to stop the second drive source after the rotation of the first drive source is detected.

    摘要翻译: 混合式压缩机系统具有用于压缩制冷剂的混合式压缩机。 压缩机由第一驱动源和第二驱动源中的一个选择性地驱动。 混合式压缩机系统还包括第一单向离合器,用于驱动第二驱动源的驱动器,用于检测第一驱动源的旋转状态的传感器和控制器。 第一单向离合器布置在压缩机和第一驱动源之间的第一动力传递路径上,用于允许从第一驱动源到压缩机的动力传递。 控制器电连接到驱动器和传感器。 当压缩机的驱动源从第二驱动源切换到第一驱动源时,控制器命令驱动器在检测到第一驱动源的旋转之后停止第二驱动源。

    Insulation resistance decrease detector for industrial vehicle
    6.
    发明申请
    Insulation resistance decrease detector for industrial vehicle 审中-公开
    工业车辆绝缘阻力下降检测器

    公开(公告)号:US20090108850A1

    公开(公告)日:2009-04-30

    申请号:US12286206

    申请日:2008-09-29

    IPC分类号: G01R31/02

    摘要: An insulation resistance decrease detector for an industrial vehicle is disclosed. The detector includes a coupling capacitor, a sensing resistor, an AC voltage applying section having a first terminal and a second terminal, a voltage detecting section, and a determining section. The AC voltage applying section applies an AC voltage of a predetermined frequency to the vehicle body through the sensing resistor and the coupling capacitor. The voltage detecting section detects the voltage at a node between the sensing resistor and the coupling capacitor. The determining section determines that a resistance value of the insulation resistor has decreased when the level of voltage detected by the voltage detecting section becomes less than or equal to a predetermined level.

    摘要翻译: 公开了一种用于工业车辆的绝缘电阻降低检测器。 检测器包括耦合电容器,感测电阻器,具有第一端子和第二端子的AC电压施加部分,电压检测部分和确定部分。 交流电压施加部通过检测电阻和耦合电容向车体施加预定频率的交流电压。 电压检测部分检测感测电阻器和耦合电容器之间的节点处的电压。 当由电压检测部检测到的电压的电平变得小于或等于预定电平时,确定部分确定绝缘电阻器的电阻值已经降低。

    Electronic type endoscope apparatus for use in NTSC/PAL systems
    8.
    发明授权
    Electronic type endoscope apparatus for use in NTSC/PAL systems 失效
    用于NTSC / PAL制式的电子式内窥镜装置

    公开(公告)号:US4878112A

    公开(公告)日:1989-10-31

    申请号:US224527

    申请日:1988-07-26

    申请人: Shoichi Ieoka

    发明人: Shoichi Ieoka

    摘要: A rotary color filter, used in a PAL or NTSC system, is rotated with a period which is equal to one frame period of a video signal. The rotary color filter has a plurality of color transmitting filters which are disposed in the circumferential direction at different intervals. Consequently the time during which an illumination light is emitted to obtain one complete color frame is made shorter, thereby diminishing the possibility of a color change occurring.

    摘要翻译: 在PAL或NTSC系统中使用的旋转滤色器以等于视频信号的一个帧周期的周期旋转。 旋转彩色滤光片具有多个不同间隔沿圆周方向设置的彩色透射滤光片。 因此,发出照明光以获得一个完整的彩色框架的时间变短,从而减少发生颜色变化的可能性。

    Method and apparatus for controlling switched reluctance motor and compressor
    10.
    发明授权
    Method and apparatus for controlling switched reluctance motor and compressor 失效
    用于控制开关磁阻电动机和压缩机的方法和装置

    公开(公告)号:US06784633B2

    公开(公告)日:2004-08-31

    申请号:US10262004

    申请日:2002-10-01

    申请人: Shoichi Ieoka

    发明人: Shoichi Ieoka

    IPC分类号: H02P146

    摘要: A method for controlling a switched reluctance motor includes controlling an applied voltage to supply constant current to each of the coils of the switched reluctance motor in order of rotation; and determining a switching timing for switching the phases of the coils such that the switching to an exited phase occurs when the variation amount of the applied voltage to the coil having the exited phase is substantially zero.

    摘要翻译: 用于控制开关磁阻电动机的方法包括控制施加的电压以按照旋转顺序向开关磁阻电动机的每个线圈提供恒定电流; 以及确定用于切换线圈的相位的切换定时,使得当具有退出相位的线圈的施加电压的变化量基本上为零时,发生切换到退出相位。