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    • 3. 发明授权
    • Hybrid compressor control method
    • 混合压缩机控制方法
    • US06715995B2
    • 2004-04-06
    • US10062317
    • 2002-01-31
    • Brian Robert KelmRobert John MohrmannRichard Eric Luken
    • Brian Robert KelmRobert John MohrmannRichard Eric Luken
    • F04B4900
    • F04B35/002B60H1/3222F04B27/0895F04B27/1804F04B2027/1813F04B2027/1827F25B27/00F25B49/022
    • A method for controlling a hybrid compressor system is disclosed. The hybrid compressor system includes a variable displacement hybrid compressor that is selectively driven by one of an engine and an electric motor to cool a passenger compartment of a vehicle. The method includes the steps of transmitting a demand signal to activate an electric motor drive mode of the hybrid compressor system, whereby the electric motor drives the hybrid compressor, transmitting a compressor displacement signal to the hybrid compressor to set a displacement of the compressor to a minimum level, waiting a predefined time period, activating the electric motor to drive the compressor, determining a suction pressure of a suction chamber of the hybrid compressor, determining whether the displacement of the hybrid compressor is sufficient based on the suction pressure determination, and changing the displacement of the compressor if the displacement is insufficient.
    • 公开了一种用于控制混合压缩机系统的方法。 混合式压缩机系统包括可变排量混合式压缩机,其由发动机和电动机之一选择性地驱动以冷却车辆的乘客舱。 该方法包括以下步骤:发送请求信号以激活混合压缩机系统的电动机驱动模式,由此电动机驱动混合压缩机,将压缩机位移信号传输到混合压缩机,以将压缩机的位移设置为 最小水平,等待预定义的时间段,启动电动机驱动压缩机,确定混合压缩机的吸入室的吸入压力,基于吸入压力确定来确定混合压缩机的排量是否足够,以及改变 如果位移不足,压缩机的位移。
    • 4. 发明授权
    • Sensorless induction motor control
    • 无传感器感应电机控制
    • US06756763B2
    • 2004-06-29
    • US10137594
    • 2002-05-02
    • Gurinder Singh KahlonNing LiuRobert Joseph MohanRichard Eric Luken
    • Gurinder Singh KahlonNing LiuRobert Joseph MohanRichard Eric Luken
    • H02P142
    • H02P23/14H02P23/0004H02P27/047
    • A method for controlling an induction motor using an equivalent circuit model, the equivalent circuit having a real component and an imaginary component, is disclosed. The method instead of measuring a plurality of induction motor parameters, the real and the imaginary component of the induction motor impedance are calculated based on the measured phase currents and voltages. The invention calculates a first control function based on the real component of the induction motor impedance, and a second control function based on the imaginary component of the induction motor impedance, and adjusts the induction motor excitation frequency until the first control function is approximately equal to the second control function. After the excitation frequency is determined, the motor torque is calculated by taking the square of motor voltage in the d-q reference frame. Working with a few control parameters, the present invention achieves a desired maximum torque or a desired peak efficiency with a high tolerance of variation in the control parameters.
    • 公开了一种使用等效电路模型来控制感应电机的方法,该等效电路具有实部和虚部。 该方法代替测量多个感应电动机参数,基于所测量的相电流和电压来计算感应电动机阻抗的实部和虚部。 本发明基于感应电动机阻抗的实际分量和基于感应电动机阻抗的虚分量的第二控制功能来计算第一控制功能,并且调整感应电动机的激励频率,直到第一控制功能近似等于 第二个控制功能。 在确定激励频率后,通过在d-q参考系中取电动机电压的平方来计算电动机转矩。 使用几个控制参数,本发明通过控制参数的变化的高公差来实现期望的最大扭矩或期望的峰值效率。
    • 5. 发明授权
    • Auxiliary convective fuel cell stacks for fuel cell power generation systems
    • 用于燃料电池发电系统的辅助对流燃料电池堆
    • US06534210B2
    • 2003-03-18
    • US09760948
    • 2001-01-16
    • Richard Eric LukenPam DawsonRobert MohanVijay K. GargPrabhakar Singh
    • Richard Eric LukenPam DawsonRobert MohanVijay K. GargPrabhakar Singh
    • H01M804
    • H01M8/04029H01M8/04089H01M8/04156H01M8/04223H01M8/04225H01M8/04302H01M8/241H01M8/2457H01M8/249
    • A fuel cell power generation system is disclosed which includes a primary fuel cell stack for generating a first quantity of electric power, an auxiliary fuel cell stack for generating a second quantity of electric power, a fuel handling subsystem for feeding a fuel containing hydrogen to the primary fuel cell stack and the auxiliary fuel cell stack, an oxidant handling subsystem including a compressor for feeding an oxidant containing oxygen to the primary fuel cell stack, and a controller electrically connected to the primary fuel cell stack, the auxiliary fuel cell stack, the fuel handling subsystem and the oxidant handling subsystem for controlling operation of the fuel cell power generation system. In one version of the fuel cell power generation system, the controller executes a stored program to sense a startup signal for the fuel cell power generation system, to initiate operation of the auxiliary fuel cell stack, and to apply at least a portion of the second quantity of electric power generated by the auxiliary fuel cell stack to the oxidant handling subsystem to initiate operation of the primary fuel cell stack.
    • 公开了一种燃料电池发电系统,其包括用于产生第一数量的电力的初级燃料电池堆,用于产生第二数量的电力的辅助燃料电池堆,用于将含氢的燃料供给到 初级燃料电池堆和辅助燃料电池堆,氧化剂处理子系统,包括用于将含氧氧化剂供给到主燃料电池堆的压缩机,以及电连接到主燃料电池堆,辅助燃料电池堆, 燃料处理子系统和用于控制燃料电池发电系统的运行的氧化剂处理子系统。 在燃料电池发电系统的一个版本中,控制器执行存储的程序以感测用于燃料电池发电系统的启动信号,以启动辅助燃料电池堆的操作,并施加第二个 由辅助燃料电池堆产生到氧化剂处理子系统的电力量以启动主燃料电池堆的操作。