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    Systems and methods for monitoring current in an electric motor
    51.
    发明授权
    Systems and methods for monitoring current in an electric motor 有权
    用于监测电动机电流的系统和方法

    公开(公告)号：US08339084B2

    公开(公告)日：2012-12-25

    申请号：US12723136

    申请日：2010-03-12

    申请人： Brian A. Welchko

    发明人： Brian A. Welchko

    IPC分类号： G05B5/00

    CPC分类号： H02P29/0241 ,  H02M7/53873

    摘要： Systems and methods are provided for monitoring current in an electric motor. An electrical system comprises a direct current (DC) interface, an electric motor, and an inverter module between the DC interface and the electric motor. A first current sensor is configured to measure a DC current flowing between the DC interface and the inverter module. A second current sensor is configured to measure a first phase current flowing through the first phase of the electric motor. A control module is coupled to the current sensors, and the control module is configured to determine an expected value for the first phase current based at least in part on the DC current measured by the first current sensor and take remedial action based on a difference between the expected value and the measured first phase current.

    摘要翻译： 提供了用于监视电动机中的电流的系统和方法。 电气系统包括直流（DC）接口，电动机以及DC接口和电动机之间的逆变器模块。 第一电流传感器被配置为测量在DC接口和逆变器模块之间流动的直流电流。 第二电流传感器被配置为测量流过电动机的第一相的第一相电流。 控制模块耦合到电流传感器，并且控制模块被配置为至少部分地基于由第一电流传感器测量的DC电流来确定第一相电流的期望值，并基于第一相电流的差异来采取补救动作 预期值和测量的第一相电流。

    HYBRID MOTOR BOOST SYSTEM AND METHODS
    54.
    发明申请
    HYBRID MOTOR BOOST SYSTEM AND METHODS 有权
    混合电机升压系统及方法

    公开(公告)号：US20080258655A1

    公开(公告)日：2008-10-23

    申请号：US11738886

    申请日：2007-04-23

    申请人： James M. Nagashima ,  Brian A. Welchko ,  Peter J. Savagian

    发明人： James M. Nagashima ,  Brian A. Welchko ,  Peter J. Savagian

    IPC分类号： H02P1/54

    CPC分类号： H02P5/74 ,  B60L11/12 ,  B60L11/1803 ,  B60L15/007 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7077

    摘要： An electrical system for a vehicle includes a power source providing electrical power to a first and a second electrical motor. Each motor has two or more windings, and each winding has a first end and a second end. A boost link such as a battery or capacitor is configured to store electrical energy for subsequent retrieval and use by either electrical motor. A first inverter circuit includes a first grouping of switches, wherein each of the first group of switches couples one of the first ends of the windings to the power source. A second inverter circuit includes a second group of switches, each coupling one of the second ends of the windings to the boost link. A controller is coupled to activate each of the first and second groups of switches to thereby allow the electrical energy to be placed on and retrieved from the boost link.

    摘要翻译： 用于车辆的电气系统包括向第一和第二电动机提供电力的电源。 每个电动机具有两个或更多个绕组，并且每个绕组具有第一端和第二端。 诸如电池或电容器的升压链路被配置为存储电能，以便随后由电动机取回和使用。 第一逆变器电路包括第一组开关，其中第一组开关中的每一个将绕组的第一端中的一个耦合到电源。 第二逆变器电路包括第二组开关，每个开关将绕组的第二端中的一个耦合到升压链路。 控制器被耦合以激活第一组和第二组开关中的每一个，从而允许电能被放置在升压链路上并从升压链路检索。

    Electrical system for pulse-width modulated control of a power inverter using phase-shifted carrier signals and related operating methods
    58.
    发明授权
    Electrical system for pulse-width modulated control of a power inverter using phase-shifted carrier signals and related operating methods 有权
    使用相移载波信号对功率逆变器进行脉宽调制控制的电气系统及相关操作方法

    公开(公告)号：US08115433B2

    公开(公告)日：2012-02-14

    申请号：US12236172

    申请日：2008-09-23

    申请人： Brian A. Welchko

    发明人： Brian A. Welchko

    IPC分类号： H02P27/06

    CPC分类号： H02M7/53871 ,  B60L11/1803 ,  B60L2210/46 ,  B60L2220/58 ,  H02P25/22 ,  Y02T10/641 ,  Y02T10/642 ,  Y02T10/7005 ,  Y02T10/7241

    摘要： Systems and methods are provided for pulse-width modulated control of power inverter using phase-shifted carrier signals. An electrical system comprises an energy source and a motor. The motor has a first set of windings and a second set of windings, which are electrically isolated from each other. An inverter module is coupled between the energy source and the motor and comprises a first set of phase legs coupled to the first set of windings and a second set of phase legs coupled to the second set of windings. A controller is coupled to the inverter module and is configured to achieve a desired power flow between the energy source and the motor by modulating the first set of phase legs using a first carrier signal and modulating the second set of phase legs using a second carrier signal. The second carrier signal is phase-shifted relative to the first carrier signal.

    摘要翻译： 提供了使用相移载波信号对功率逆变器进行脉宽调制控制的系统和方法。 电气系统包括能量源和电动机。 电动机具有第一组绕组和第二组绕组，它们彼此电隔离。 逆变器模块耦合在能量源和电动机之间，并且包括耦合到第一组绕组的第一组相位支脚和耦合到第二组绕组的第二组相位支路。 控制器耦合到逆变器模块并且被配置为通过使用第一载波信号调制第一组相位支路并且使用第二载波信号来调制第二组相位支路来实现能量源和电动机之间的期望功率流 。 第二载波信号相对于第一载波信号相移。

    METHOD AND SYSTEM FOR CONVERTING DC POWER TO AC POWER
    59.
    发明申请
    METHOD AND SYSTEM FOR CONVERTING DC POWER TO AC POWER 有权
    将直流电转换为交流电的方法和系统

    公开(公告)号：US20090066271A1

    公开(公告)日：2009-03-12

    申请号：US11853894

    申请日：2007-09-12

    申请人： Lateef A. Kajouke ,  Brian A. Welchko

    发明人： Lateef A. Kajouke ,  Brian A. Welchko

    IPC分类号： H02P27/08 ,  H02M7/42

    CPC分类号： H02M7/5387 ,  H02P27/08

    摘要： Methods and systems for converting direct current (DC) power to alternating current (AC) power are provided. A first phase of the AC power is generated based on a first carrier signal. A second phase of the AC power is generated based on a second carrier signal.

    摘要翻译： 提供了将直流（DC）功率转换为交流（AC）功率的方法和系统。 基于第一载波信号产生交流电源的第一相。 基于第二载波信号产生交流电源的第二相。

    DOUBLE ENDED INVERTER SYSTEM FOR A VEHICLE HAVING TWO ENERGY SOURCES THAT EXHIBIT DIFFERENT OPERATING CHARACTERISTICS
    60.
    发明申请
    DOUBLE ENDED INVERTER SYSTEM FOR A VEHICLE HAVING TWO ENERGY SOURCES THAT EXHIBIT DIFFERENT OPERATING CHARACTERISTICS 有权
    具有两个能够显示不同操作特性的能源的车辆的双端逆变器系统

    公开(公告)号：US20090033252A1

    公开(公告)日：2009-02-05

    申请号：US12110950

    申请日：2008-04-28

    申请人： Gregory S. Smith ,  Brian A. Welchko ,  George John ,  Sibaprasad Chakrabrarti ,  Milun Perisic ,  James M. Nagashima

    发明人： Gregory S. Smith ,  Brian A. Welchko ,  George John ,  Sibaprasad Chakrabrarti ,  Milun Perisic ,  James M. Nagashima

    IPC分类号： H02P4/00 ,  H02P27/06

    CPC分类号： B60L11/1868 ,  B60L2210/40 ,  H02J1/102 ,  H02J2001/008 ,  H02M3/33584 ,  Y02T10/7005 ,  Y02T10/7066 ,  Y02T10/7241

    摘要： A double ended inverter system for an AC electric traction motor of a vehicle is disclosed. The inverter system serves as an interface between two different energy sources having different operating characteristics. The inverter system includes a first energy source having first operating characteristics associated therewith, and a first inverter subsystem coupled to the first energy source and configured to drive the AC electric traction motor. The inverter system also includes a second energy source having second operating characteristics associated therewith, wherein the first operating characteristics and the second operating characteristics are different, and a second inverter subsystem coupled to the second energy source and configured to drive the AC electric traction motor. In addition, the inverter system has a controller coupled to the first inverter subsystem and to the second inverter subsystem. The controller is configured to influence operation of the first inverter subsystem and the second inverter subsystem to manage power transfer among the first energy source, the second energy source, and the AC electric traction motor.

    摘要翻译： 公开了一种用于车辆的交流电力牵引电动机的双端逆变器系统。 逆变器系统用作具有不同操作特性的两个不同能量源之间的接口。 逆变器系统包括具有与其相关联的第一操作特性的第一能量源和耦合到第一能量源并被配置为驱动AC电力牵引电动机的第一逆变器子系统。 逆变器系统还包括具有与其相关联的第二操作特性的第二能量源，其中第一操作特性和第二操作特性不同，以及耦合到第二能量源并被配置为驱动交流电力牵引电动机的第二逆变器子系统。 此外，逆变器系统具有耦合到第一逆变器子系统和第二逆变器子系统的控制器。 控制器被配置为影响第一逆变器子系统和第二逆变器子系统的操作，以管理第一能量源，第二能量源和交流电力牵引电动机之间的功率传递。