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    Methods and systems for induction machine control
    21.
    发明授权
    Methods and systems for induction machine control 有权
    感应电机控制的方法和系统

    公开(公告)号：US08390228B2

    公开(公告)日：2013-03-05

    申请号：US12635313

    申请日：2009-12-10

    Applicant: Mengwei Campbell ,  Bon Ho Bae ,  Silva Hiti ,  Sibaprasad Chakrabarti

    Inventor： Mengwei Campbell ,  Bon Ho Bae ,  Silva Hiti ,  Sibaprasad Chakrabarti

    IPC: H02P7/00

    CPC classification number: H02P21/06 ,  H02P21/141

    Abstract: A method for controlling an induction machine having a rotor includes the steps of obtaining a torque command, calculating an estimated squared value of resistance of the rotor using the torque command, determining an offset for the resistance of the rotor, and generating an updated measure of rotor resistance using the estimated squared value and the offset.

    Abstract translation: 一种用于控制具有转子的感应电机的方法包括以下步骤：获得转矩指令，使用转矩指令计算转子的电阻的估计平方值，确定转子电阻的偏移量，并产生更新的测量值 转子电阻使用估计的平方值和偏移量。

    Double-ended inverter drive system for a fuel cell vehicle and related operating method
    22.
    发明授权
    Double-ended inverter drive system for a fuel cell vehicle and related operating method 有权
    燃料电池车用双端变频驱动系统及相关操作方法

    公开(公告)号：US08122985B2

    公开(公告)日：2012-02-28

    申请号：US12142651

    申请日：2008-06-19

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

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

    IPC: B60W20/00 ,  B60W10/24 ,  B60W10/26 ,  B60W10/28

    CPC classification number: B60L11/1881 ,  B60L11/1892 ,  B60L2210/20 ,  Y02T10/725 ,  Y02T90/34

    Abstract: Systems and methods are provided for a double-ended inverter drive system for a fuel cell vehicle. An electric drive system for a vehicle 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 fuel cell is coupled to the first inverter to provide power flow from the fuel cell to the electric motor. A second inverter is coupled to the electric motor, and is configured to provide alternating current to the electric motor. An energy source is coupled to the second inverter to provide power flow between the energy source and the electric motor. A controller is coupled to the first inverter and the second inverter, and is configured to provide a constant power from the fuel cell during operation of the electric motor.

    Abstract translation: 为燃料电池车辆的双端逆变器驱动系统提供系统和方法。 一种用于车辆的电驱动系统包括：电动机，其构造成为车辆提供牵引力。 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。 燃料电池耦合到第一逆变器以提供从燃料电池到电动机的动力流。 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。 能量源耦合到第二逆变器以在能量源和电动机之间提供功率流。 控制器耦合到第一逆变器和第二逆变器，并且被配置为在电动机的操作期间从燃料电池提供恒定的功率。

    METHODS AND SYSTEMS FOR INDUCTION MACHINE CONTROL
    25.
    发明申请
    METHODS AND SYSTEMS FOR INDUCTION MACHINE CONTROL 有权
    感应电机控制方法与系统

    公开(公告)号：US20110140646A1

    公开(公告)日：2011-06-16

    申请号：US12635313

    申请日：2009-12-10

    Applicant: Mengwei Campbell ,  Bon Ho Bae ,  Silva Hiti ,  Sibaprasad Chakrabarti

    Inventor： Mengwei Campbell ,  Bon Ho Bae ,  Silva Hiti ,  Sibaprasad Chakrabarti

    IPC: H02P23/14

    CPC classification number: H02P21/06 ,  H02P21/141

    Abstract: A method for controlling an induction machine having a rotor includes the steps of obtaining a torque command, calculating an estimated squared value of resistance of the rotor using the torque command, determining an offset for the resistance of the rotor, and generating an updated measure of rotor resistance using the estimated squared value and the offset.

    Abstract translation: 一种用于控制具有转子的感应电机的方法包括以下步骤：获得转矩指令，使用转矩指令计算转子的电阻的估计平方值，确定转子电阻的偏移量，并产生更新的测量值 转子电阻使用估计的平方值和偏移量。

    TORQUE PRODUCTION IN AN ELECTRIC MOTOR IN RESPONSE TO CURRENT SENSOR ERROR
    27.
    发明申请
    TORQUE PRODUCTION IN AN ELECTRIC MOTOR IN RESPONSE TO CURRENT SENSOR ERROR 有权
    针对电流传感器错误，在电动机中产生扭矩

    公开(公告)号：US20100295500A1

    公开(公告)日：2010-11-25

    申请号：US12470803

    申请日：2009-05-22

    Applicant: SIBAPRASAD CHAKRABARTI ,  MENGWEI CAMPBELL

    Inventor： SIBAPRASAD CHAKRABARTI ,  MENGWEI CAMPBELL

    IPC: H02P23/08

    CPC classification number: H02P21/09 ,  H02P21/00 ,  H02P29/032 ,  Y02T10/7258

    Abstract: Methods and systems are provided for producing a commanded torque in an electric motor in a vehicle. A method comprises obtaining a torque command, obtaining a speed of the electric motor, and operating the inverter based at least in part on a voltage command that corresponds to minimal current through the electric motor for producing the commanded torque at the instantaneous speed of the electric motor.

    Abstract translation: 提供了用于在车辆中的电动机中产生指令扭矩的方法和系统。 一种方法包括获得扭矩指令，获得电动机的速度，以及至少部分地基于对应于通过电动机的最小电流的电压指令来操作逆变器，以产生在电动瞬时速度下的指令转矩 发动机。

    METHODS AND SYSTEMS FOR DETECTING CURRENT SENSOR ERROR
    28.
    发明申请
    METHODS AND SYSTEMS FOR DETECTING CURRENT SENSOR ERROR 有权
    用于检测电流传感器错误的方法和系统

    公开(公告)号：US20100295492A1

    公开(公告)日：2010-11-25

    申请号：US12470777

    申请日：2009-05-22

    Applicant: SIBAPRASAD CHAKRABARTI ,  WEI D. WANG

    Inventor： SIBAPRASAD CHAKRABARTI ,  WEI D. WANG

    IPC: H02H7/08

    CPC classification number: B60L15/20 ,  B60L3/0038 ,  B60L3/0061 ,  B60L3/0092 ,  B60L11/1803 ,  B60L15/025 ,  G01R19/0092 ,  G01R31/343 ,  G01R35/00 ,  H02M2001/0009 ,  H02P21/00 ,  H02P29/0241 ,  Y02T10/643 ,  Y02T10/7005 ,  Y02T10/72 ,  Y02T10/7275

    Abstract: Methods and systems are provided for controlling an electric motor in a vehicle. A method comprises measuring current associated with a first phase of the electric motor using a first current sensor resulting in a measured first phase current and measuring current associated with a second phase of the electric motor using a second current sensor resulting in a measured second phase current. The method further comprises determining a target value for the measured second phase current based on a value corresponding to a peak current for the first phase and identifying a current sensor error based on a difference between the measured second phase current and the target value.

    Abstract translation: 提供了用于控制车辆中的电动机的方法和系统。 一种方法包括使用第一电流传感器测量与电动机的第一相相关的电流，所述第一电流传感器产生测量的第一相电流，并且使用第二电流传感器测量与电动机的第二相相关的电流，得到测量的第二相电流 。 该方法还包括基于与第一相的峰值电流相对应的值来确定所测量的第二相电流的目标值，并基于所测量的第二相电流和目标值之间的差来识别电流传感器误差。

    METHOD AND SYSTEM FOR OPERATING AN ELECTRIC MOTOR COUPLED TO MULTIPLE POWER SUPPLIES
    29.
    发明申请
    METHOD AND SYSTEM FOR OPERATING AN ELECTRIC MOTOR COUPLED TO MULTIPLE POWER SUPPLIES 有权
    用于操作与多个电源耦合的电动马达的方法和系统

    公开(公告)号：US20090134828A1

    公开(公告)日：2009-05-28

    申请号：US11945368

    申请日：2007-11-27

    Applicant: SIBAPRASAD CHAKRABARTI ,  BRIAN A. WELCHKO ,  SILVA HITI

    Inventor： SIBAPRASAD CHAKRABARTI ,  BRIAN A. WELCHKO ,  SILVA HITI

    IPC: H02P4/00 ,  H02P27/06 ,  B60L11/18

    CPC classification number: H02P27/08 ,  H02P2209/03 ,  Y02T10/7258

    Abstract: Methods and systems are provided for operating an electric motor having at least one winding coupled to first and second power supplies. A torque command for the electric motor is received. A present power reserve for the first and second power supplies is determined based at least in part on the torque command. An operating voltage for the second power supply is determined based on the present power reserve. The operating voltage for the second power supply is applied to the at least one winding. The application of the operating voltage allowing the present power reserve to flow between the first and second power supplies and the motor.

    Abstract translation: 提供了用于操作具有耦合到第一和第二电源的至少一个绕组的电动机的方法和系统。 接收到电动机的转矩指令。 至少部分地基于转矩指令来确定用于第一和第二电源的当前功率储备。 基于当前动力储备来确定第二电源的工作电压。 第二电源的工作电压被施加到至少一个绕组。 施加允许当前功率储备在第一和第二电源和电动机之间流动的工作电压。

    Electric motor systems
    30.
    发明授权
    Electric motor systems 有权
    电机系统

    公开(公告)号：US07518279B2

    公开(公告)日：2009-04-14

    申请号：US11829275

    申请日：2007-07-27

    Applicant: Sibaprasad Chakrabarti ,  Silva Hiti

    Inventor： Sibaprasad Chakrabarti ,  Silva Hiti

    IPC: H02K19/26

    CPC classification number: H02K3/28 ,  H02K11/33 ,  Y02T10/7258

    Abstract: Electric motor systems are provided for use in vehicles. In an embodiment, by way of example only, the system includes a first inverter, a second inverter, and a motor electrically coupled to the first and the second inverters. The motor includes a stator including a plurality of slots formed therein and a plurality of windings. The plurality of windings is disposed at least partially in the slots, and each winding includes a first coil and a second coil. The first coil has a first number of turns, and the second coil has a second number of turns that is unequal to the first number of turns. The first coil of each winding is electrically coupled to the first inverter, and the second coil of each winding is electrically coupled to the second inverter.

    Abstract translation: 提供电动机系统用于车辆。 在一个实施例中，仅作为示例，该系统包括电耦合到第一和第二逆变器的第一逆变器，第二逆变器和电动机。 电动机包括定子，其包括形成在其中的多个槽和多个绕组。 多个绕组至少部分地设置在槽中，并且每个绕组包括第一线圈和第二线圈。 第一线圈具有第一圈数，并且第二线圈具有不等于第一圈数的第二圈数。 每个绕组的第一线圈电耦合到第一反相器，并且每个绕组的第二线圈电耦合到第二反相器。

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