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    Redundant DC bus discharge for an electric motor system
    1.
    发明授权
    Redundant DC bus discharge for an electric motor system 有权
    用于电动机系统的冗余直流母线放电

    公开(公告)号：US07944160B2

    公开(公告)日：2011-05-17

    申请号：US12047120

    申请日：2008-03-12

    申请人： Silva Hiti ,  David Tang ,  Brian A. Welchko ,  Milun Perisic ,  Constantin C. Stancu

    发明人： Silva Hiti ,  David Tang ,  Brian A. Welchko ,  Milun Perisic ,  Constantin C. Stancu

    IPC分类号： H02P21/00

    CPC分类号： H02P21/0003 ,  H02M2001/322

    摘要： Methods and apparatus are provided for discharging a direct current (DC) bus providing power to a motor control circuit in an electric motor system. The method includes the steps of detecting a predetermined discharge signal and generating operational control signals comprising phase currents for dissipating energy from the DC bus through a passive load in response to detecting the predetermined discharge signal, wherein the passive load includes motor windings of an electric motor of the electric motor system. The method also includes the step of providing the operational control signals to the motor control circuit for discharging the DC bus through the motor control circuit and the motor windings of the electric motor.

    摘要翻译： 提供了用于对在电动机系统中的电动机控制电路供电的直流（DC）总线的放电的方法和装置。 该方法包括以下步骤：响应于检测到预定的放电信号，产生包括用于从DC总线通过无源负载消耗能量的相电流的操作控制信号，其中被动负载包括电动机的电动机绕组 的电机系统。 该方法还包括向电动机控制电路提供操作控制信号以通过电动机控制电路和电动机的电动机绕组排放DC总线的步骤。

    DC bus discharge in an electric motor system
    2.
    发明授权
    DC bus discharge in an electric motor system 有权
    直流母线放电在电动马达系统中

    公开(公告)号：US07944161B2

    公开(公告)日：2011-05-17

    申请号：US12047123

    申请日：2008-03-12

    申请人： Silva Hiti ,  David Tang ,  Brian A. Welchko ,  Milun Perisic ,  Constantin C. Stancu

    发明人： Silva Hiti ,  David Tang ,  Brian A. Welchko ,  Milun Perisic ,  Constantin C. Stancu

    IPC分类号： H02P21/00

    CPC分类号： H02P27/06 ,  H02P3/22 ,  H02P23/10

    摘要： Methods and apparatus are provided for improved discharge of a DC bus which provides power to an inverter. An electric motor system provided with the improved discharge method for discharge of the DC bus includes an electric motor, the inverter which provides electric control for the permanent magnet electric motor, the direct current (DC) bus which provides power to the inverter, and a processor. The processor generates operational control signals and provides such operational control signals to the inverter. In response to detecting a predetermined discharge signal, the processor generates operational control signals for generating a ripple current in motor windings of the electric motor to dissipate energy from the DC bus through a passive load, the passive load including the motor windings of the electric motor.

    摘要翻译： 提供了用于改进向逆变器提供电力的DC总线的放电的方法和装置。 具有改善的用于排放DC总线的放电方法的电动机系统包括电动机，为永磁电动机提供电力控制的逆变器，向逆变器供电的直流（DC）总线，以及 处理器。 处理器产生操作控制信号，并向变频器提供这种操作控制信号。 响应于检测到预定的放电信号，处理器产生用于在电动机的电动机绕组中产生纹波电流的操作控制信号，以通过无源负载从DC总线耗散能量，包括电动机的电动机绕组的被动负载 。

    Systems and methods for monitoring current in an electric motor
    6.
    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：US08558496B2

    公开(公告)日：2013-10-15

    申请号：US13049653

    申请日：2011-03-16

    申请人： Brian A. Welchko ,  Silva Hiti ,  Ronald W. Young ,  David Tang ,  Gregory S. Smith

    发明人： Brian A. Welchko ,  Silva Hiti ,  Ronald W. Young ,  David Tang ,  Gregory S. Smith

    IPC分类号： G05B5/00

    CPC分类号： B60L3/0038 ,  B60L2240/429 ,  B60L2240/529 ,  H02P29/027 ,  H02P29/032 ,  Y02T10/642

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

    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（DC）接口，电动机，耦合在DC接口和电动机之间的逆变器模块，在逆变器模块的第一相支路和电动机的第一相之间的第一电流传感器，以测量 流过电动机的第一相的第一电流，在第一相支路和DC接口之间的第二电流传感器，以测量流过第一相支线的第二电流;以及控制模块，耦合到第一电流传感器和 第二电流传感器。 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第一电流与由第二电流传感器测量的第二电流之间的差异来启动补救动作。

    PROTECTION FOR PERMANENT MAGNET MOTOR CONTROL CIRCUITS
    7.
    发明申请
    PROTECTION FOR PERMANENT MAGNET MOTOR CONTROL CIRCUITS 有权
    永磁电机控制电路的保护

    公开(公告)号：US20080304189A1

    公开(公告)日：2008-12-11

    申请号：US11758974

    申请日：2007-06-06

    申请人： David Tang ,  Brian A. Welchko ,  Silva Hiti ,  Mark L. Selogie

    发明人： David Tang ,  Brian A. Welchko ,  Silva Hiti ,  Mark L. Selogie

    IPC分类号： H02H7/09

    CPC分类号： H02H7/0838

    摘要： Methods and apparatus are provided for protecting a motor control circuit in a permanent magnet electric motor system. The permanent magnet electric motor system includes a permanent magnet electric motor having a predetermined number of windings corresponding to the phases of the permanent magnet electric motor and a direct current (DC) bus coupled to a power source for providing operational power for the electric motor system. A motor control circuit is connected to the DC bus for receiving the operational power therefrom and is connected to the windings of the permanent magnet electric motor for controlling the permanent magnet electric motor. A protection circuit is connected to the DC bus for receiving the voltage therefrom for operation of the protection circuit and for detecting predetermined motor control circuit fault conditions from voltage sensed on the DC bus and in response thereto providing protection for the motor control circuit.

    摘要翻译： 提供了用于保护永磁电动机系统中的电动机控制电路的方法和装置。 永磁电动机系统包括具有对应于永磁电动机的相位的预定数量的绕组的永磁电动机和耦合到用于为电动机系统提供动力的电源的直流（DC）母线 。 电动机控制电路连接到DC总线，用于从其接收操作电力，并连接到用于控制永磁电动机的永磁电动机的绕组。 保护电路连接到DC总线，用于从其接收电压用于保护电路的操作，并且用于从DC总线上感测到的电压检测预定的电机控制电路故障状况，并响应于此为电机控制电路提供保护。

    Systems and methods for estimating temperatures of power module components
    8.
    发明授权
    Systems and methods for estimating temperatures of power module components 有权
    用于估计功率模块组件温度的系统和方法

    公开(公告)号：US07756669B2

    公开(公告)日：2010-07-13

    申请号：US12141653

    申请日：2008-06-18

    申请人： Constantin C. Stancu ,  Robert T. Dawsey ,  Brian A. Welchko

    发明人： Constantin C. Stancu ,  Robert T. Dawsey ,  Brian A. Welchko

    IPC分类号： G01K1/08 ,  G01N27/416

    CPC分类号： G06F17/5036 ,  G06F2217/78

    摘要： Methods and systems are provided for modeling temperature characteristics of components in a system such as a power module for a hybrid or electric vehicle. A power dissipation value is calculated for each of the components in the system. A first filter is applied to the power dissipation value associated with a selected component to determine its estimated temperature. For each of the neighboring components located adjacent to the selected component, a cross-coupling temperature is estimated by applying other filters to each of the power dissipation values for the neighboring components. The estimated temperature of the selected component and the estimated cross-coupling temperatures for each of the neighboring components can then be added to thereby estimate the operating temperature for the selected component. Further, the operation of the system may be adjusted if the operating temperature determined for the selected component exceeds a threshold value.

    摘要翻译： 提供了用于对诸如混合动力或电动车辆的功率模块的系统中的部件的温度特性进行建模的方法和系统。 为系统中的每个组件计算功耗值。 将第一滤波器应用于与所选择的分量相关联的功耗值，以确定其估计的温度。 对于与所选择的部件相邻的相邻部件中的每一个，通过对相邻部件的每个功率耗散值应用其它滤波器来估计交叉耦合温度。 然后可以添加所选择的部件的估计温度和每个相邻部件的估计交叉耦合温度，从而估计所选部件的工作温度。 此外，如果为所选择的部件确定的工作温度超过阈值，则可以调整系统的操作。

    Double ended inverter system with an impedance source inverter subsystem
    9.
    发明授权
    Double ended inverter system with an impedance source inverter subsystem 有权
    具有阻抗源逆变器子系统的双端逆变器系统

    公开(公告)号：US07956569B2

    公开(公告)日：2011-06-07

    申请号：US12132486

    申请日：2008-06-03

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

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

    IPC分类号： H02P27/04

    CPC分类号： B60L11/1868 ,  Y02T10/7005 ,  Y02T10/7066

    摘要： A double ended inverter system suitable for use with an AC electric traction motor of a vehicle is provided. The double ended inverter system cooperates with a first DC energy source and a second DC energy source, which may have different nominal voltages. The double ended inverter system includes an impedance source inverter subsystem configured to drive the AC electric traction motor using the first energy source, and an inverter subsystem configured to drive the AC electric traction motor using the second energy source. The double ended inverter system also utilizes a controller coupled to the impedance source inverter subsystem and to the inverter subsystem. The controller is configured to control the impedance source inverter subsystem and the inverter subsystem in accordance with a boost operating mode, a traditional inverter operating mode, and a recharge operating mode of the double ended inverter system.

    摘要翻译： 提供适用于车辆的交流电动牵引电动机的双端逆变器系统。 双端逆变器系统与可能具有不同标称电压的第一DC能量源和第二DC能量源协作。 双端逆变器系统包括：阻抗源逆变器子系统，被配置为使用第一能量源驱动交流电力牵引电动机;以及逆变器子系统，被配置为使用第二能量源驱动交流电力牵引电动机。 双端逆变器系统还使用耦合到阻抗源逆变器子系统和逆变器子系统的控制器。 控制器配置为根据升压运行模式，传统逆变器工作模式和双端逆变器系统的充电操作模式控制阻抗源逆变器子系统和逆变器子系统。

    Charging energy sources with a rectifier using double-ended inverter system
    10.
    发明授权
    Charging energy sources with a rectifier using double-ended inverter system 有权
    使用双端逆变器系统的整流器充电能源

    公开(公告)号：US08058830B2

    公开(公告)日：2011-11-15

    申请号：US12136636

    申请日：2008-06-10

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

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

    IPC分类号： H02P1/00

    CPC分类号： B60L11/1868 ,  Y02T10/7005 ,  Y02T10/7066

    摘要： Systems and methods are provided for charging energy sources with a rectifier using a double-ended inverter system. An apparatus is provided for an electric drive system for a vehicle. The electric drive system comprises an electric motor configured to provide traction power to the vehicle. A first inverter is coupled to the electric motor and is configured to provide alternating current to the electric motor. A first energy source is coupled to the first inverter, wherein the first inverter is configured to provide power flow between the first energy source and the electric motor. A second inverter is coupled to the electric motor and is configured to provide alternating current to the electric motor. A rectifier is coupled to the second inverter and configured to produce a direct current output. The second inverter is configured to provide power from the rectifier to the electric motor.

    摘要翻译： 提供了系统和方法，用于使用双端逆变器系统对整流器充电能量源。 一种用于车辆的电驱动系统的装置。 电驱动系统包括被配置为向车辆提供牵引力的电动马达。 第一逆变器耦合到电动机并且被配置为向电动机提供交流电。 第一能量源耦合到第一逆变器，其中第一逆变器被配置为在第一能量源和电动机之间提供功率流。 第二逆变器耦合到电动机并且被配置为向电动机提供交流电。 整流器耦合到第二反相器并且被配置为产生直流输出。 第二逆变器被配置成从整流器向电动机提供电力。