公开(公告)号：US20090034308A1

公开(公告)日：2009-02-05

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: H02M7/538

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：US20090033255A1

公开(公告)日：2009-02-05

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: H02P27/06

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：US08138704B2

公开(公告)日：2012-03-20

申请号：US12470777

申请日：2009-05-22

Applicant: Sibaprasad Chakrabarti ,  Wei D. Wang

Inventor： Sibaprasad Chakrabarti ,  Wei D. Wang

IPC: H02P6/12 ,  H02P7/00

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，并且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。

公开(公告)号：US08120306B2

公开(公告)日：2012-02-21

申请号：US12348422

申请日：2009-01-05

Applicant: Sibaprasad Chakrabarti ,  Rajkumar Copparapu

Inventor： Sibaprasad Chakrabarti ,  Rajkumar Copparapu

IPC: H02P27/04

CPC classification number: H02M7/53875 ,  H02M7/5395 ,  H02M2001/327

Abstract: Methods and apparatus are provided for operation of a voltage source inverter. A method of operating a voltage source inverter having an output with multiple voltage phases having a DC voltage level, the method comprising sensing a low output frequency condition; determining a DC voltage offset responsive to the low output frequency condition; and applying the DC voltage offset when operating the voltage source inverter resulting in a change to the DC voltage level of the multiple voltage phases.

Abstract translation: 提供了用于电压源逆变器的操作的方法和装置。 一种操作具有具有DC电压电平的多个电压相位的输出的电压源逆变器的方法，所述方法包括检测低输出频率条件; 响应于所述低输出频率条件确定DC电压偏移; 以及在操作所述电压源逆变器时施加所述DC电压偏移，从而导致所述多个电压相位的直流电压电平的变化。

公开(公告)号：US08102142B2

公开(公告)日：2012-01-24

申请号：US12110950

申请日：2008-04-28

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

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

IPC: H02P27/04

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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08054032B2

公开(公告)日：2011-11-08

申请号：US12106868

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: H02P27/04

CPC classification number: H02M7/53871 ,  B60L11/1868 ,  Y02T10/7005 ,  Y02T10/7066

Abstract: Systems and methods are provided for controlling a double-ended inverter system having a first inverter and a second inverter. The method comprises determining a required output current and determining a desired second inverter current. The method further comprises determining a second inverter switching function, wherein only a selected leg in the second inverter is modulated at a duty cycle, determining a first inverter switching function based on the second inverter switching function, and modulating the first inverter and the second inverter using the first inverter switching function and the second inverter switching function.

Abstract translation: 提供了用于控制具有第一反相器和第二反相器的双端逆变器系统的系统和方法。 该方法包括确定所需的输出电流并确定期望的第二反相器电流。 该方法还包括确定第二逆变器切换功能，其中只有第二反相器中的选定支路以占空比调制，基于第二逆变器切换功能确定第一逆变器切换功能，并且调制第一逆变器和第二逆变器 使用第一个逆变器切换功能和第二个逆变器切换功能。

公开(公告)号：US20090067203A1

公开(公告)日：2009-03-12

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: H02M7/537 ,  H02M7/44 ,  H02P23/00

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。

公开(公告)号：US20090034303A1

公开(公告)日：2009-02-05

申请号：US12106868

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: H02M7/48 ,  H02M7/538

CPC classification number: H02M7/53871 ,  B60L11/1868 ,  Y02T10/7005 ,  Y02T10/7066

Abstract: Systems and methods are provided for controlling a double-ended inverter system having a first inverter and a second inverter. The method comprises determining a required output current and determining a desired second inverter current. The method further comprises determining a second inverter switching function, wherein only a selected leg in the second inverter is modulated at a duty cycle, determining a first inverter switching function based on the second inverter switching function, and modulating the first inverter and the second inverter using the first inverter switching function and the second inverter switching function.

Abstract translation: 提供了用于控制具有第一反相器和第二反相器的双端逆变器系统的系统和方法。 该方法包括确定所需的输出电流并确定期望的第二反相器电流。 该方法还包括确定第二逆变器切换功能，其中只有第二反相器中的选定支路以占空比调制，基于第二逆变器切换功能确定第一逆变器切换功能，并且调制第一逆变器和第二逆变器 使用第一个逆变器切换功能和第二个逆变器切换功能。

公开(公告)号：US20090033253A1

公开(公告)日：2009-02-05

申请号：US12120705

申请日：2008-05-15

Applicant: James M. NAGASHIMA ,  Brian A. WELCHKO ,  George JOHN ,  Sibaprasad CHAKRABARTI ,  Milun PERISIC ,  Gregory S. SMITH

Inventor： James M. NAGASHIMA ,  Brian A. WELCHKO ,  George JOHN ,  Sibaprasad CHAKRABARTI ,  Milun PERISIC ,  Gregory S. SMITH

IPC: H02P27/06 ,  H02J7/14

CPC classification number: B60L15/00 ,  B60L58/20 ,  B60L2220/54 ,  B60L2220/58 ,  Y02T10/641 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7066 ,  Y02T90/34

Abstract: An electric traction system for a vehicle having a high voltage battery and a low voltage battery is provided. The system includes an AC electric motor and a double ended inverter system coupled to the AC electric motor. The AC electric motor has a first set of windings and a second set of windings that occupy common stator slots, where the first set of windings and the second set of windings are electrically isolated from each other. The double ended inverter system drives the AC electric motor using energy obtained from the high voltage battery and energy obtained from the low voltage battery. The double ended inverter system utilizes a first inverter subsystem coupled between the first set of windings and the high voltage battery, and a second inverter subsystem coupled between the second set of windings and the low voltage battery.

Abstract translation: 提供一种具有高电压电池和低电压电池的车辆用电力牵引系统。 该系统包括交流电动机和耦合到交流电动机的双端逆变器系统。 AC电动机具有第一组绕组和第二组绕组，其占据公共定子槽，其中第一组绕组和第二组绕组彼此电隔离。 双端变频器系统使用从高压电池获得的能量和从低压电池获得的能量驱动交流电动机。 双端逆变器系统利用耦合在第一组绕组和高电压电池之间的第一逆变器子系统以及耦合在第二组绕组与低压电池之间的第二逆变器子系统。

公开(公告)号：US20090032319A1

公开(公告)日：2009-02-05

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: B60K1/00 ,  G06F19/00

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。