Motor current based air circuit obstruction detection
    21.
    发明授权
    Motor current based air circuit obstruction detection 有权
    基于电机电流的空气回路阻塞检测

    公开(公告)号:US08125230B2

    公开(公告)日:2012-02-28

    申请号:US12336910

    申请日:2008-12-17

    IPC分类号: G01R31/28

    摘要: A method for determining an obstruction in an air circuit, the air circuit having a fan and a motor that drives the fan, includes the steps of obtaining a load current of a motor coupled to the air circuit, comparing the load current to a predetermined value, and determining the obstruction using the load current and the predetermined value.

    摘要翻译: 一种用于确定空气回路中的障碍物的方法,具有风扇和驱动风扇的电动机的空气回路包括以下步骤:获得耦合到空气回路的电动机的负载电流,将负载电流与预定值进行比较 ,并且使用负载电流和预定值来确定阻塞。

    Ground fault detection in an ungrounded electrical system
    23.
    发明授权
    Ground fault detection in an ungrounded electrical system 失效
    未接地电气系统中的接地故障检测

    公开(公告)号:US07986500B2

    公开(公告)日:2011-07-26

    申请号:US12104273

    申请日:2008-04-16

    IPC分类号: H02H3/00 H02H9/08

    CPC分类号: H02H9/08 G01R31/025

    摘要: An ungrounded electrical power distribution system may experience a single line to ground fault. Such a fault may not disrupt operation of the system, but its presence may raise a risk of additional problems if left uncorrected. A system for progressively grounding the ungrounded system may be initiated when a line to ground fault is suspected. As grounding through successively lower impedance proceeds, fault current may increase and detection of severity of the line to ground fault may be more readily achieved, thus facilitating localization of the fault.

    摘要翻译: 未接地的配电系统可能会遇到单线对地故障。 这样的错误可能不会扰乱系统的运行,但是如果未经校正,其存在可能会导致其他问题的风险。 当怀疑线对地故障时,可以启动用于逐渐接地未接地系统的系统。 由于通过连续较低的阻抗进行接地,故障电流可能增加,并且可以更容易地实现线对地故障的严重性的检测,从而有助于故障的定位。

    CONTROL SYSTEM FOR BATTERY CHARGE MAINTENANCE IN A POWER SYSTEM WITH MAIN AC GENERATOR CONTROL
    24.
    发明申请
    CONTROL SYSTEM FOR BATTERY CHARGE MAINTENANCE IN A POWER SYSTEM WITH MAIN AC GENERATOR CONTROL 失效
    具有主交流发电机控制的电力系统中的电池充电维护控制系统

    公开(公告)号:US20110115426A1

    公开(公告)日:2011-05-19

    申请号:US12621404

    申请日:2009-11-18

    IPC分类号: H02J7/04

    CPC分类号: H02J7/1438 B64D2221/00

    摘要: An electrical power system may comprise an AC generator and a generator control unit (GCU) for varying AC output voltage of the AC generator. A DC bus may be connected to the AC generator via a Transformer Rectifier Unit (TRU) so that DC voltage on the DC bus is directly proportional to the AC output voltage. A battery may be connected directly to the DC bus. A control loop may be connected to receive battery current information and provide control signals to vary the AC output voltage so that battery charge may be maintained without battery damage.

    摘要翻译: 电力系统可以包括AC发电机和用于改变AC发电机的AC输出电压的发电机控制单元(GCU)。 DC总线可以通过变压器整流单元(TRU)连接到交流发电机,使得直流总线上的直流电压与交流输出电压成正比。 电池可以直接连接到直流总线。 可以连接控制回路以接收电池电流信息并提供控制信号以改变AC输出电压,使得可以维持电池充电而没有电池损坏。

    Wing ice protection heater element network
    25.
    发明授权
    Wing ice protection heater element network 失效
    翼冰保护加热器元件网络

    公开(公告)号:US07922120B2

    公开(公告)日:2011-04-12

    申请号:US11939313

    申请日:2007-11-13

    IPC分类号: B64D15/14

    CPC分类号: B64D15/14

    摘要: An ice prevention network comprising a plurality of non-overlapping heater elements arranged in a grid along an airfoil is provided, powered by a multiphase power source, each phase powering selected heater elements that can selectively be powered on and powered off. The grid has a number of zones extending along the airfoil perpendicular to the airflow over the airfoil and a number of sections extending along the surface of the airfoil parallel to the airflow over the airfoil. Each of the heater elements is assigned to a single power phase and arranged such that an arbitrary section may be deactivated without causing a phase imbalance of more than one heating unit and such that a single zone may be activated without causing a phase imbalance of more than one heating unit.

    摘要翻译: 提供了一种防冰网络,其包括沿着翼型布置在格栅中的多个非重叠的加热器元件,由多相电源供电,每相为所选择的加热器元件供电,所述加热器元件可选择性地通电并断电。 格栅具有沿机翼垂直于机翼上方的气流延伸的多个区域,以及沿翼型表面平行于翼型上的气流延伸的多个部分。 每个加热器元件被分配到单个电力相位并且被布置成使得任意部分可以被去激活而不引起多于一个加热单元的相位不平衡,并且使得单个区域可以被激活而不引起相位不平衡 一个加热单元。

    SOLID STATE POWER CONTACTORS BASED ON NO BREAK POWER TRANSFER METHOD
    26.
    发明申请
    SOLID STATE POWER CONTACTORS BASED ON NO BREAK POWER TRANSFER METHOD 失效
    基于无断开电力传输方式的固态电力接触器

    公开(公告)号:US20100181826A1

    公开(公告)日:2010-07-22

    申请号:US12356338

    申请日:2009-01-20

    IPC分类号: B60L1/00

    CPC分类号: B60R16/03 Y10T307/615

    摘要: An electrical power distribution system for a vehicle may provide from alternate sources of power to an electrical load. Two solid state power contactors (SSPC's) may provide connectivity paths between two power sources and the equipment. The SSPC's may be interconnected so that power to the load is provided on a first connectivity path between a first source of power and the load, unless and until a power interruption occurs on the first path. In the event of power interruption, the SSPC's actuate a second connectivity path between a second source of power and the load. Transfer of power sources may occur in a time period that is less than an equipment transparency time of the load.

    摘要翻译: 用于车辆的电力分配系统可以从替代的电力源提供给电负载。 两个固态电源接触器(SSPC)可以提供两个电源和设备之间的连接路径。 SSPC可以互连,使得在第一电源和负载之间的第一连接路径上提供对负载的电力,除非并且直到在第一路径上发生电力中断。 在电源中断的情况下,SSPC启动第二个电源和负载之间的第二个连接路径。 电源的传输可能发生在小于负载的设备透明时间的时间段内。

    Motor current based air circuit obstruction detection
    27.
    发明授权
    Motor current based air circuit obstruction detection 有权
    基于电机电流的空气回路阻塞检测

    公开(公告)号:US09068759B2

    公开(公告)日:2015-06-30

    申请号:US13357355

    申请日:2012-01-24

    IPC分类号: G06F19/00 G01R31/08 F24F11/00

    摘要: A program product for determining an obstruction in an air circuit for an environmental control unit having a motor is provided. The program product comprises a program and a non-transitory, computer-readable storage medium. The program is configured to at least facilitate obtaining a load current of the motor, determining a state of the motor, generating a comparison, and determining the obstruction using the load current and the comparison. The comparison is generated by comparing the load current to a first plurality of values if the motor is in a steady state, and by comparing the load current to a second plurality of values if the motor is in a transient state. The non-transitory, computer-readable storage medium stores the program.

    摘要翻译: 提供一种用于确定具有电动机的环境控制单元的空气回路中的障碍物的程序产品。 程序产品包括程序和非暂时的计算机可读存储介质。 该程序被配置为至少促进获得电动机的负载电流,确定电动机的状态,产生比较,以及使用负载电流和比较来确定阻塞。 如果电动机处于稳定状态,则通过将负载电流与第一多个值进行比较,并且如果电动机处于过渡状态,则通过将负载电流与第二多个值进行比较来产生比较。 非暂时的计算机可读存储介质存储该程序。

    Control system for battery charge maintenance in a power system with main AC generator control
    29.
    发明授权
    Control system for battery charge maintenance in a power system with main AC generator control 失效
    具有主交流发电机控制的电力系统中的电池充电维护控制系统

    公开(公告)号:US08314588B2

    公开(公告)日:2012-11-20

    申请号:US12621404

    申请日:2009-11-18

    IPC分类号: H02J7/00

    CPC分类号: H02J7/1438 B64D2221/00

    摘要: An electrical power system may comprise an AC generator and a generator control unit (GCU) for varying AC output voltage of the AC generator. A DC bus may be connected to the AC generator via a Transformer Rectifier Unit (TRU) so that DC voltage on the DC bus is directly proportional to the AC output voltage. A battery may be connected directly to the DC bus. A control loop may be connected to receive battery current information and provide control signals to vary the AC output voltage so that battery charge may be maintained without battery damage.

    摘要翻译: 电力系统可以包括AC发电机和用于改变AC发电机的AC输出电压的发电机控制单元(GCU)。 DC总线可以通过变压器整流单元(TRU)连接到交流发电机,使得直流总线上的直流电压与交流输出电压成正比。 电池可以直接连接到直流总线。 可以连接控制回路以接收电池电流信息并提供控制信号以改变AC输出电压,使得可以维持电池充电而没有电池损坏。