公开(公告)号：US07973433B2

公开(公告)日：2011-07-05

申请号：US12178847

申请日：2008-07-24

Applicant: David F. Nelson ,  George John ,  Gregory S. Smith ,  David Tang ,  James M. Nagashima ,  Gabriel Gallegos-Lopez

Inventor： David F. Nelson ,  George John ,  Gregory S. Smith ,  David Tang ,  James M. Nagashima ,  Gabriel Gallegos-Lopez

IPC: H01H9/54 ,  H01H33/59 ,  H01H47/00 ,  H01H85/46 ,  H01H3/26 ,  H01H3/28

CPC classification number: B60K6/48 ,  B60K2001/003 ,  B60L2240/36 ,  H01L24/48 ,  H01L2224/48227 ,  H01L2224/4846 ,  H01L2224/48472 ,  H01L2224/73265 ,  H01L2924/00014 ,  H01L2924/12041 ,  H01L2924/1301 ,  H01L2924/13034 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/14 ,  H01L2924/19105 ,  H05K7/20854 ,  Y02T10/6221 ,  Y10T307/944 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/05599

Abstract: A power switch apparatus includes a substrate; a semiconductor die mounted on the substrate and including power electronics circuitry for a high power, alternating current motor application; and gate drive circuitry mounted on the substrate and electrically coupled to the power electronics circuitry on the semiconductor die.

Abstract translation: 电源开关装置包括：基板; 安装在基板上的半导体管芯，并且包括用于高功率，交流电动机应用的电力电子电路; 以及栅极驱动电路，其安装在所述基板上并电耦合到所述半导体管芯上的所述电力电子电路。

公开(公告)号：US20100301786A1

公开(公告)日：2010-12-02

申请号：US12473964

申请日：2009-05-28

Applicant: GABRIEL GALLEGOS-LOPEZ ,  JAMES M. NAGASHIMA ,  MILUN PERISIC ,  SILVA HITI

Inventor： GABRIEL GALLEGOS-LOPEZ ,  JAMES M. NAGASHIMA ,  MILUN PERISIC ,  SILVA HITI

IPC: H02P21/00 ,  H02P27/00

CPC classification number: H02P5/74 ,  B60L15/007 ,  B60L15/08 ,  B60L2200/26 ,  B60L2210/46 ,  H02P21/22 ,  Y02T10/643 ,  Y02T10/645 ,  Y02T10/7241

Abstract: A system is provided for controlling two AC machines. The system comprises a DC input voltage source that provides a DC input voltage, a voltage boost command control module (VBCCM), a five-phase PWM inverter module coupled to the two AC machines, and a boost converter coupled to the inverter module and the DC input voltage source. The boost converter is designed to supply a new DC input voltage to the inverter module having a value that is greater than or equal to a value of the DC input voltage. The VBCCM generates a boost command signal (BCS) based on modulation indexes from the two AC machines. The BCS controls the boost converter such that the boost converter generates the new DC input voltage in response to the BCS. When the two AC machines require additional voltage that exceeds the DC input voltage required to meet a combined target mechanical power required by the two AC machines, the BCS controls the boost converter to drive the new DC input voltage generated by the boost converter to a value greater than the DC input voltage.

Abstract translation: 提供一种用于控制两台交流电机的系统。 该系统包括提供DC输入电压的DC输入电压源，升压指令控制模块（VBCCM），耦合到两个AC电机的五相PWM逆变器模块，以及耦合到逆变器模块和 直流输入电压源。 升压转换器被设计为向具有大于或等于直流输入电压值的值的逆变器模块提供新的直流输入电压。 VBCCM基于来自两台交流电机的调制指数生成升压指令信号（BCS）。 BCS控制升压转换器，使升压转换器响应于BCS产生新的直流输入电压。 当两台交流电机需要超过满足两台交流电机所需的组合目标机械功率所需的直流输入电压的额外电压时，BCS控制升压转换器将升压转换器产生的新的直流输入电压驱动到一个值 大于直流输入电压。

公开(公告)号：US20090230900A1

公开(公告)日：2009-09-17

申请号：US12048071

申请日：2008-03-13

Applicant: BONHO BAE ,  NITINKUMAR R. PATEL ,  STEVEN E. SCHULZ ,  JAMES M. NAGASHIMA ,  JUNG SIK YIM ,  SEUNG KI SUL

Inventor： BONHO BAE ,  NITINKUMAR R. PATEL ,  STEVEN E. SCHULZ ,  JAMES M. NAGASHIMA ,  JUNG SIK YIM ,  SEUNG KI SUL

IPC: H02P21/14

CPC classification number: H02P21/22

Abstract: Methods and systems are provided for controlling an AC motor via an inverter. The method includes determining a delay-compensated offset based on a synchronous frame current, producing a current error based on a synchronous frame current and a commanded current, producing a voltage error based on an anti-windup offset and the current error, producing a commanded voltage based on the delay-compensated offset and the voltage error, and providing the inverter with the commanded voltage.

Abstract translation: 提供了用于通过逆变器控制AC电动机的方法和系统。 该方法包括基于同步帧电流确定延迟补偿的偏移，基于同步帧电流和指令电流产生电流误差，产生基于抗融场偏移和当前误差的电压误差，产生命令 基于延迟补偿偏移和电压误差的电压，并向逆变器提供指令电压。

公开(公告)号：US07579792B2

公开(公告)日：2009-08-25

申请号：US11738886

申请日：2007-04-23

Applicant: James M. Nagashima ,  Brian A Welchko ,  Peter J. Savagian

Inventor： James M. Nagashima ,  Brian A Welchko ,  Peter J. Savagian

IPC: H02P5/00

CPC classification number: H02P5/74 ,  B60L11/12 ,  B60L11/1803 ,  B60L15/007 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7077

Abstract: An electrical system for a vehicle includes a power source providing electrical power to a first and a second electrical motor. Each motor has two or more windings, and each winding has a first end and a second end. A boost link such as a battery or capacitor is configured to store electrical energy for subsequent retrieval and use by either electrical motor. A first inverter circuit includes a first grouping of switches, wherein each of the first group of switches couples one of the first ends of the windings to the power source. A second inverter circuit includes a second group of switches, each coupling one of the second ends of the windings to the boost link. A controller is coupled to activate each of the first and second groups of switches to thereby allow the electrical energy to be placed on and retrieved from the boost link.

Abstract translation: 用于车辆的电气系统包括向第一和第二电动机提供电力的电源。 每个电动机具有两个或更多个绕组，并且每个绕组具有第一端和第二端。 诸如电池或电容器的升压链路被配置为存储电能，以便随后由电动机取回和使用。 第一逆变器电路包括第一组开关，其中第一组开关中的每一个将绕组的第一端中的一个耦合到电源。 第二逆变器电路包括第二组开关，每个开关将绕组的第二端中的一个耦合到升压链路。 控制器被耦合以激活第一组和第二组开关中的每一个，从而允许电能被放置在升压链路上并从升压链路检索。

公开(公告)号：US20090206687A1

公开(公告)日：2009-08-20

申请号：US12032359

申请日：2008-02-15

Applicant: George R. WOODY ,  Karl D. CONROY ,  James M. NAGASHIMA ,  David F. NELSON ,  Eric R. OSTROM ,  Gregory S. SMITH

Inventor： George R. WOODY ,  Karl D. CONROY ,  James M. NAGASHIMA ,  David F. NELSON ,  Eric R. OSTROM ,  Gregory S. SMITH

IPC: H02K9/00 ,  F25D17/02

CPC classification number: H02K9/20

Abstract: Cooling systems and methods are provided for an integrated electric motor-inverter, where the integrated electric motor-inverter includes a housing, a motor, and an inverter, the motor and the inverter are disposed within the housing, and the motor includes a stator. The system includes a cooling jacket, a first coolant, a condenser, a spray head, and a second coolant. The cooling jacket is disposed concentric to the stator and includes an inner wall and an outer wall. The inner wall is in direct contact with the stator. The first coolant is disposed between the cooling jacket inner and outer walls. The condenser is disposed concentric to the cooling jacket. The spray head is disposed adjacent the inverter. The second coolant is in flow communication with the spray head.

Abstract translation: 为集成电动机 - 逆变器提供冷却系统和方法，其中集成电动机 - 逆变器包括壳体，电动机和逆变器，电动机和逆变器设置在壳体内，并且电动机包括定子。 该系统包括冷却套，第一冷却剂，冷凝器，喷头和第二冷却剂。 冷却套与所述定子同心地设置，并且包括内壁和外壁。 内壁与定子直接接触。 第一冷却剂设置在冷却套内壁和外壁之间。 冷凝器与冷却套筒同心设置。 喷头靠近逆变器设置。 第二冷却剂与喷头流体连通。

公开(公告)号：US20090034310A1

公开(公告)日：2009-02-05

申请号：US12178897

申请日：2008-07-24

Applicant: Terence G. WARD ,  George JOHN ,  Edward P. YANKOSKI ,  Gregory S. SMITH ,  James M. NAGASHIMA

Inventor： Terence G. WARD ,  George JOHN ,  Edward P. YANKOSKI ,  Gregory S. SMITH ,  James M. NAGASHIMA

IPC: H02M1/00

CPC classification number: H02M7/003 ,  H01L2224/49111

Abstract: A terminal assembly for a power converter is provided. The terminal assembly includes first and second conductive components and a current sensor. The first conductive component has first and second releasable attachment formations. The second conductive component has first and second portions with respective first and second widths. The first width is less than the second width. The first portion is releasably attached to the first conductive component with the second releasable attachment formation. The current sensor has an opening therethrough and is positioned between the first conductive component and the second portion of the second conductive component such that the first portion of the first conductive component extends through the opening. The current sensor is responsive to current flowing through the first portion of the second conductive component.

Abstract translation: 提供了一种用于功率转换器的端子组件。 端子组件包括第一和第二导电部件和电流传感器。 第一导电组件具有第一和第二可释放的附接结构。 第二导电部件具有相应的第一和第二宽度的第一和第二部分。 第一宽度小于第二宽度。 第一部分通过第二可释放的连接结构可释放地附接到第一导电部件。 电流传感器具有穿过其的开口并且位于第一导电部件和第二导电部件的第二部分之间，使得第一导电部件的第一部分延伸穿过开口。 电流传感器响应于流过第二导电部件的第一部分的电流。

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。

公开(公告)号：US07474029B2

公开(公告)日：2009-01-06

申请号：US10867402

申请日：2004-06-14

Applicant: Khwaja M. Rahman ,  James M. Nagashima

Inventor： Khwaja M. Rahman ,  James M. Nagashima

IPC: H02K21/12 ,  H02K1/27

CPC classification number: H02K1/2766

Abstract: A machine includes a stator and a rotor having a plurality of poles. Each pole is formed at least in part by a plurality of permanent magnets recessed within the rotor at a predetermined distance from an outer surface of the rotor. The distance is predetermined to minimize rotor flux variation near the outer surface during rotation of the rotor relative to the stator. Eddy current losses are thereby reduced.

Abstract translation: 机器包括定子和具有多个极的转子。 每个极至少部分地由在转子内凹入预定距离的转子的外表面处的多个永磁体形成。 该距离是预定的，以使转子相对于定子旋转期间的外表面附近的转子磁通变化最小化。 从而减小涡流损耗。