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    SYSTEMS AND METHODS FOR MONITORING CURRENT IN AN ELECTRIC MOTOR
    1.
    发明申请
    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：US20120235622A1

    公开(公告)日：2012-09-20

    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： H02P6/12

    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。

    DC BUS DISCHARGE IN AN ELECTRIC MOTOR SYSTEM
    3.
    发明申请
    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：US20090230913A1

    公开(公告)日：2009-09-17

    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： H02P23/10 ,  H02P27/06

    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 。

    METHOD AND SYSTEM FOR MONITORING POWER ELECTRONICS CONTROLLERS IN AUTOMOTIVE ELECTRICAL SYSTEMS
    4.
    发明申请
    METHOD AND SYSTEM FOR MONITORING POWER ELECTRONICS CONTROLLERS IN AUTOMOTIVE ELECTRICAL SYSTEMS 有权
    用于监控汽车电气系统中电力电子控制器的方法和系统

    公开(公告)号：US20110068727A1

    公开(公告)日：2011-03-24

    申请号：US12565982

    申请日：2009-09-24

    申请人： Brian A. WELCHKO ,  Silva HITI ,  Abbas RAFTARI ,  Jeong J. PARK ,  Hanne BUUR

    发明人： Brian A. WELCHKO ,  Silva HITI ,  Abbas RAFTARI ,  Jeong J. PARK ,  Hanne BUUR

    IPC分类号： H02H7/09

    CPC分类号： H02P29/02 ,  G05B23/0235

    摘要： Methods and systems are provided for monitoring an automotive electrical system including an inverter having at least one switch. First and second voltage commands corresponding to respective first and second components of a commanded voltage vector on a synchronous frame of reference coordinate system are received. A plurality of duty cycles for operating the at least one switch are calculated based on the first and second voltage commands. First and second actual voltages are calculated based on the plurality of duty cycles. The first and second actual voltages correspond to respective first and second components of an actual voltage vector on the synchronous frame of reference coordinate system. An indication of a fault is generated based on the difference between the first components of the commanded voltage vector and the actual voltage vector and the difference between the second components of the commanded voltage vector and the actual voltage vector.

    摘要翻译： 提供了用于监视包括具有至少一个开关的逆变器的汽车电气系统的方法和系统。 接收对应于参考坐标系同步帧上的指令电压矢量的相应第一和第二分量的第一和第二电压指令。 基于第一和第二电压命令来计算用于操作至少一个开关的多个占空比。 基于多个占空比来计算第一和第二实际电压。 第一和第二实际电压对应于参考坐标系同步帧上的实际电压矢量的相应的第一和第二分量。 基于指令电压矢量的第一分量与实际电压矢量之间的差与指令电压矢量的第二分量与实际电压矢量之差，产生故障指示。

    METHOD AND SYSTEM FOR CONTROLLING A POWER INVERTER IN ELECTRIC DRIVES
    5.
    发明申请
    METHOD AND SYSTEM FOR CONTROLLING A POWER INVERTER IN ELECTRIC DRIVES 有权
    控制电力变频器的方法和系统

    公开(公告)号：US20090179608A1

    公开(公告)日：2009-07-16

    申请号：US12013093

    申请日：2008-01-11

    申请人： Brian A. WELCHKO ,  Steven E. SCHULZ ,  Silva HITI

    发明人： Brian A. WELCHKO ,  Steven E. SCHULZ ,  Silva HITI

    IPC分类号： H02P27/08 ,  H02M7/44

    CPC分类号： H02M7/53875 ,  H02M2007/53876

    摘要： Methods and systems for controlling a power inverter in an electric drive system of an automobile are provided. A signal controlling the power inverter is modified utilizing a first voltage distortion compensation method if a modulation index of the signal is less than a first modulation index value. The signal is modified utilizing a second voltage distortion compensation method if the modulation index is at least equal to the first modulation index value.

    摘要翻译： 提供了一种用于控制汽车电驱动系统中的电力逆变器的方法和系统。 如果信号的调制指数小于第一调制指数值，则利用第一电​​压失真补偿方法来修改控制功率逆变器的信号。 如果调制指数至少等于第一调制指数值，则利用第二电压失真补偿方法修改信号。

    ABSOLUTE POSITION SENSOR FOR FIELD-ORIENTED CONTROL OF AN INDUCTION MOTOR
    9.
    发明申请
    ABSOLUTE POSITION SENSOR FOR FIELD-ORIENTED CONTROL OF AN INDUCTION MOTOR 有权
    用于感应电动机的现场控制的绝对位置传感器

    公开(公告)号：US20090039825A1

    公开(公告)日：2009-02-12

    申请号：US12137340

    申请日：2008-06-11

    申请人： Constantin C. STANCU ,  Silva HITI ,  Robert T. DAWSEY ,  Erik HATCH ,  Matthew D. LABA ,  Peter J. SAVAGIAN

    发明人： Constantin C. STANCU ,  Silva HITI ,  Robert T. DAWSEY ,  Erik HATCH ,  Matthew D. LABA ,  Peter J. SAVAGIAN

    IPC分类号： H02P21/14 ,  G01P3/44 ,  G01B7/30

    CPC分类号： H02P21/14 ,  B60L15/025 ,  B60L2220/12 ,  B60L2220/14 ,  Y02T10/643

    摘要： Systems and methods are provided for an automotive drive system using an absolute position sensor for field-oriented control of an induction motor. An automotive drive system comprises an induction motor having a rotor, and a position sensor coupled to the induction motor. The position sensor is configured to sense an absolute angular position of the rotor. A processor may be coupled to the position sensor and configured to determine a relative angular position of the rotor based on a difference between the absolute angular position and an initial angular position obtained when the induction motor is started. A controller may be coupled to the induction motor and the processor and configured to provide field-oriented control of the induction motor based on the relative angular position of the rotor.

    摘要翻译： 为使用绝对位置传感器用于感应电动机的场定向控制的汽车驱动系统提供系统和方法。 汽车驱动系统包括具有转子的感应电动机和耦合到感应电动机的位置传感器。 位置传感器构造成感测转子的绝对角位置。 处理器可以耦合到位置传感器并且被配置为基于绝对角位置和当感应电动机启动时获得的初始角位置之间的差来确定转子的相对角位置。 控制器可以耦合到感应电动机和处理器并且被配置为基于转子的相对角位置来提供感应电动机的场定向控制。