公开(公告)号：US08174224B2

公开(公告)日：2012-05-08

申请号：US12470803

申请日：2009-05-22

Applicant: Sibaprasad Chakrabarti ,  Mengwei Campbell

Inventor： Sibaprasad Chakrabarti ,  Mengwei Campbell

IPC: H02P7/00

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，以产生以电动机的瞬时速度产生指令转矩 发动机。

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。

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。

公开(公告)号：US08058830B2

公开(公告)日：2011-11-15

申请号：US12136636

申请日：2008-06-10

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

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

IPC: H02P1/00

CPC classification number: B60L11/1868 ,  Y02T10/7005 ,  Y02T10/7066

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07956569B2

公开(公告)日：2011-06-07

申请号：US12132486

申请日：2008-06-03

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

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

IPC: H02P27/04

CPC classification number: B60L11/1868 ,  Y02T10/7005 ,  Y02T10/7066

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20090026895A1

公开(公告)日：2009-01-29

申请号：US11829275

申请日：2007-07-27

Applicant: Sibaprasad Chakrabarti ,  Silva Hiti

Inventor： Sibaprasad Chakrabarti ,  Silva Hiti

IPC: H02K3/28 ,  H02K11/00

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。

公开(公告)号：US08002056B2

公开(公告)日：2011-08-23

申请号：US12106875

申请日：2008-04-21

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

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

IPC: H02K1/32 ,  H02K3/24 ,  H02K5/18

CPC classification number: B60K11/02 ,  B60L11/1861 ,  B60L15/02 ,  Y02T10/645 ,  Y02T10/7011 ,  Y02T10/7044 ,  Y02T10/705

Abstract: Systems and methods are provided for an inverter system for use in a vehicle having a first energy source and a second energy source. The system comprises a motor having a first set of windings and a second set of windings. The first set of windings is electrically isolated from the second set of windings. The system further comprises a first inverter coupled to the first energy source and adapted to drive the motor, wherein the first set of windings are coupled to the first inverter. The system also comprises a second inverter coupled to the second energy source and adapted to drive the motor, wherein the second set of windings are coupled to the second inverter. A controller is coupled to the first inverter and the second inverter.

Abstract translation: 提供了一种用于具有第一能量源和第二能量源的车辆中的逆变器系统的系统和方法。 该系统包括具有第一组绕组和第二组绕组的马达。 第一组绕组与第二组绕组电隔离。 该系统还包括耦合到第一能量源并适于驱动电动机的第一逆变器，其中第一组绕组耦合到第一逆变器。 该系统还包括耦合到第二能量源并适于驱动电动机的第二逆变器，其中第二组绕组耦合到第二逆变器。 控制器耦合到第一反相器和第二反相器。

公开(公告)号：US07847437B2

公开(公告)日：2010-12-07

申请号：US12106871

申请日：2008-04-21

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

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

IPC: H02J3/38 ,  H02J3/46

CPC classification number: H02P4/00 ,  B60L11/1887 ,  B60L11/1892 ,  B60L2240/70 ,  Y02T10/642 ,  Y02T10/7291 ,  Y02T90/16 ,  Y02T90/34 ,  Y10T307/50 ,  Y10T307/707

Abstract: Systems and methods are provided for controlling a double-ended inverter system coupled to a first energy source and a second energy source. The method comprises determining a constant power line associated with operation of the double-ended inverter system, the constant power line representing a desired power flow to the second energy source. The method further comprises determining an operating point on the constant power line, the operating point producing a minimum power loss in the double-ended inverter system for a required output current, and modulating the double-ended inverter system using a first voltage command and a second voltage command corresponding to the operating point.

Abstract translation: 提供的系统和方法用于控制耦合到第一能量源和第二能量源的双端逆变器系统。 该方法包括确定与双端逆变器系统的操作相关联的恒定电力线，恒定电力线表示到第二能量源的期望功率流。 该方法还包括确定恒定电源线上的工作点，工作点在双端逆变器系统中为所需输出电流产生最小功率损耗，以及使用第一电压指令和 对应于工作点的第二电压指令。

公开(公告)号：US07800331B2

公开(公告)日：2010-09-21

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: H02P1/00

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。

公开(公告)号：US07616466B2

公开(公告)日：2009-11-10

申请号：US11853873

申请日：2007-09-12

Applicant: Sibaprasad Chakrabarti ,  Silva Hiti ,  George John ,  Gregory S. Smith ,  Milun Perisic ,  Gholamreza Esmaili

Inventor： Sibaprasad Chakrabarti ,  Silva Hiti ,  George John ,  Gregory S. Smith ,  Milun Perisic ,  Gholamreza Esmaili

IPC: H02M7/5387 ,  H02P27/04

CPC classification number: H02M7/5395

Abstract: An inverter circuit couples a DC voltage source having a primary side and a reference side to an electric motor or other AC machine having multiple electrical phases. An inverter circuit includes switches, diodes and a controller. For each of the electrical phases, a first switch couples the electrical phase to the primary side of the DC voltage source and a second switch couples the electrical phase with the reference side of the DC voltage source. For each of the first and second switches, an associated anti-parallel diode is configured to provide an electrical path when the switch associated with the diode is inactive. The controller is coupled to the switching inputs of each of the first and second switches and is configured to provide a control signal thereto, wherein the control signal provided to each switch comprises, in a low frequency mode, a first portion and a second portion, wherein the first portion comprises a first pulse width modulation scheme and the second portion comprises a second pulse width modulation scheme different from the first modulation scheme.

Abstract translation: 逆变器电路将具有初级侧和参考侧的DC电压源耦合到具有多个电相的电动机或其它AC电机。 逆变器电路包括开关，二极管和控制器。 对于每个电相，第一开关将电相耦合到DC电压源的初级侧，而第二开关将电相与DC电压源的参考侧耦合。 对于第一和第二开关中的每一个，相关联的反并联二极管被配置为当与二极管相关联的开关不活动时提供电路径。 控制器耦合到第一和第二开关中的每一个的开关输入，并且被配置为向其提供控制信号，其中提供给每个开关的控制信号在低频模式下包括第一部分和第二部分， 其中所述第一部分包括第一脉冲宽度调制方案，并且所述第二部分包括不同于所述第一调制方案的第二脉冲宽度调制方案。