公开(公告)号：US20080258661A1

公开(公告)日：2008-10-23

申请号：US11738918

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: H02P7/06

CPC classification number: H02P25/22 ,  H02P27/08

Abstract: An inverter is provided for controlling application of voltage from a power source to a motor having a plurality of windings. The inverter includes a first set of one or more switching elements and a second set of one or more switching elements. The first and second sets of one or more switching elements are connected between a high voltage side and a low voltage side of the power source. Each of the first set of one or more switching elements is connected to one of a first set of nodes, where each of the first set of nodes is connected to a first winding end of one of the plurality of windings of the motor. Each of the second set of one or more switching elements is connected to one of a second set of nodes and each of the second set of nodes is connected to a second winding end of one of the plurality of windings.

Abstract translation: 提供了一种用于控制从电源向具有多个绕组的电动机施加电压的逆变器。 逆变器包括第一组一个或多个开关元件和第二组一个或多个开关元件。 第一组和第二组一个或多个开关元件连接在电源的高压侧和低压侧之间。 第一组一个或多个开关元件中的每一个连接到第一组节点中的一个，其中第一组节点中的每一个连接到电动机的多个绕组之一的第一绕组端。 第二组一个或多个开关元件中的每一个连接到第二组节点中的一个，并且第二组节点中的每一个连接到多个绕组之一的第二绕组端。

公开(公告)号：US20080258655A1

公开(公告)日：2008-10-23

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: H02P1/54

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：US20080074088A1

公开(公告)日：2008-03-27

申请号：US11531403

申请日：2006-09-13

Applicant: Brian Welchko ,  Gregory S. Smith ,  James M. Nagashima

Inventor： Brian Welchko ,  Gregory S. Smith ,  James M. Nagashima

IPC: H02H7/06 ,  H02P11/00 ,  H02P9/00

CPC classification number: H02P9/006 ,  H02J7/1461 ,  H02P2101/45

Abstract: Apparatus, systems, and methods are provided for reducing a potentially damaging high voltage fault condition in an alternator system. The apparatus comprises a motor, a rectifier coupled to the motor, an output node coupled to the rectifier, and a switch coupled between the rectifier and the output node, wherein the switch is a normally “on” switch. The system includes the apparatus implemented into a vehicle comprising an engine to drive the apparatus and a battery coupled to the apparatus, wherein the apparatus provides current to the battery. The method includes the steps of providing current from a rectifier of the alternator to a battery coupled to the rectifier and ceasing to provide current to the battery if a damaging event occurs, wherein the ceasing step comprises the step of switching OFF a normally “on” switch coupled between the rectifier and the battery if a damaging event occurs.

Abstract translation: 提供装置，系统和方法用于减少交流发电机系统中潜在的有害的高压故障状况。 该装置包括电动机，耦合到电动机的整流器，耦合到整流器的输出节点和耦合在整流器和输出节点之间的开关，其中开关是正常的“开”开关。 该系统包括实施到车辆中的装置，其包括驱动装置的发动机和耦合到该装置的电池，其中该装置向电池提供电流。 该方法包括以下步骤：将交流发电机的整流器的电流提供给耦合到整流器的电池，并且如果发生损坏事件则停止向电池提供电流，其中停止步骤包括将正常“接通” 如果发生破坏性事件，则在整流器和电池之间连接开关。

公开(公告)号：US07100717B2

公开(公告)日：2006-09-05

申请号：US10285169

申请日：2002-10-31

Applicant: Constantin Stancu ,  James M. Nagashima ,  Simon H. Mc Cullough

Inventor： Constantin Stancu ,  James M. Nagashima ,  Simon H. Mc Cullough

IPC: H02P27/05

CPC classification number: B60L11/14 ,  B60L11/08 ,  B60L11/123 ,  B60L11/1814 ,  B60L2220/12 ,  B60L2220/54 ,  H02P9/04 ,  Y02T10/6217 ,  Y02T10/641 ,  Y02T10/642 ,  Y02T10/7005 ,  Y02T10/7022 ,  Y02T10/7072 ,  Y02T10/7077 ,  Y02T90/127 ,  Y02T90/14

Abstract: The preferred embodiments of the present invention utilize the internal combustion engine of a hybrid vehicle, coupled with an energy storage device and series of inverters to provide electrical power generation capability for an electric power take-off (EPTO) system. Additional embodiments of the present invention utilize an existing on-board AC induction motor to provide filtering capability for the generated AC power.

Abstract translation: 本发明的优选实施例利用混合动力车辆的内燃机，与能量存储装置和一系列逆变器相结合，为电力输出（EPTO）系统提供发电能力。 本发明的另外的实施例利用现有的车载AC感应电动机为所产生的AC电力提供过滤能力。

公开(公告)号：US06979968B2

公开(公告)日：2005-12-27

申请号：US10676529

申请日：2003-10-01

Applicant: James M. Nagashima ,  Thomas P. O'Meara ,  Nitinkumar R. Patel ,  Steven E. Schulz

Inventor： James M. Nagashima ,  Thomas P. O'Meara ,  Nitinkumar R. Patel ,  Steven E. Schulz

IPC: H02P3/00 ,  H02P5/00 ,  H02P23/00

CPC classification number: H02P23/0004

Abstract: The present invention includes a method for managing processor execution time in a motor controller. The method includes receiving motor speed data, comparing the received motor speed data to predetermined motor speed ranges, determining a motor speed range based on the comparison, and modulating an inverter switching frequency of the motor controller processor based on the motor speed range. The step of receiving motor speed data may include receiving machine terminal information, processing the received machine terminal information utilizing a sensorless control algorithm, and determining motor speed data based on the processed information. The step of modulating the inverter switching frequency may include determining a modified inverter switching frequency value based on the determined motor speed range and providing the modified inverter switching frequency value to a processor control algorithm. In one embodiment, the processor control algorithm modifies the inverter switching frequency based on the modified inverter switching frequency value.

Abstract translation: 本发明包括一种用于在马达控制器中管理处理器执行时间的方法。 该方法包括接收电动机速度数据，将接收到的电动机速度数据与预定的电动机速度范围进行比较，基于比较确定电动机速度范围，以及基于电动机速度范围来调制电动机控制器处理器的逆变器开关频率。 接收电动机速度数据的步骤可以包括接收机器终端信息，利用无传感器控制算法处理所接收的机器终端信息，以及基于处理的信息确定电动机速度数据。 调制逆变器开关频率的步骤可以包括基于所确定的电动机速度范围确定修正的逆变器开关频率值，并将修改的逆变器开关频率值提供给处理器控制算法。 在一个实施例中，处理器控制算法基于经修改的逆变器开关频率值来修改逆变器开关频率。

公开(公告)号：US06617820B2

公开(公告)日：2003-09-09

申请号：US09947294

申请日：2001-09-07

Applicant: Douglas S. Carlson ,  Constantin C. Stancu ,  James M. Nagashima ,  Silva Hiti ,  Khwaja M. Rahman

Inventor： Douglas S. Carlson ,  Constantin C. Stancu ,  James M. Nagashima ,  Silva Hiti ,  Khwaja M. Rahman

IPC: H02P528

CPC classification number: B60L1/003 ,  B60L11/1803 ,  B60L11/1887 ,  B60L15/007 ,  B60L15/20 ,  B60L2220/18 ,  B60L2220/54 ,  B60L2220/58 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/427 ,  B60L2240/429 ,  B60L2240/527 ,  B60L2240/529 ,  Y02T10/641 ,  Y02T10/645 ,  Y02T10/7275 ,  Y02T90/34

Abstract: A method of generating low voltage auxiliary power forms for electric or hybrid vehicle use by tapping power from the traction motor primary winding with a secondary winding and rectifier.

Abstract translation: 一种用于通过从具有次级绕组和整流器的牵引电动机初级绕组抽出电力来产生用于电动或混合动力车辆的低压辅助动力形式的方法。

公开(公告)号：US06313991B1

公开(公告)日：2001-11-06

申请号：US09624511

申请日：2000-07-24

Applicant: James M. Nagashima ,  Terence G. Ward ,  Scott D. Downer

Inventor： James M. Nagashima ,  Terence G. Ward ,  Scott D. Downer

IPC: H05H720

CPC classification number: B60R16/0239 ,  H05K7/20927

Abstract: A thermally cooled power electronics system. A cooling housing has a body with a coolant cavity formed in one surface and a capacitor bus assembly potting cavity formed in an opposite surface. A bus bar passthrough opening is formed through the body, along with a coolant inlet and outlet manifolds having a coolant cavity inlet outlet that are coupled to respective ends of the coolant cavity. An environmental sealing gasket surrounds the coolant cavity. A plurality of laminated copper bus bars are disposed through the bus bar passthrough opening. A laminated horizontal bus bar assembly extends along the length of the housing above the coolant cavity and has horizontal bus bars that are coupled to the laminated copper bus bars. A battery input connector is coupled by way of a vertical bus bar assembly to the horizontal bus bar assembly. A plurality of power switching devices are coupled to the laminated horizontal bus bar assembly. A heat sink is coupled to the plurality of power switching devices and thermally coupled to the coolant cavity. A plurality of capacitors are secured in the capacitor bus assembly potting cavity that are coupled by way of the laminated copper bus bars to the horizontal bus bar assembly.

Abstract translation: 热冷却电力电子系统。 冷却壳体具有形成在一个表面中的冷却剂腔的主体和形成在相对表面中的电容器总线组件灌封腔。 汇流条通道开口形成穿过主体，以及具有联接到冷却剂腔的相应端部的冷却剂腔入口出口的冷却剂入口和出口歧管。 环境密封垫圈围绕冷却剂腔。 多个叠层铜母线通过母线通孔开口设置。 层压水平母线组件沿着壳体在冷却剂腔的上方的长度延伸，并且具有耦合到层压铜母线的水平母线。 电池输入连接器通过垂直母线组件连接到水平汇流条组件。 多个电源开关装置耦合到层叠的水平汇流条组件。 散热器耦合到多个功率开关装置并且热耦合到冷却剂腔。 多个电容器被固定在电容器总线组件灌封腔中，其通过层叠的铜汇流条耦合到水平汇流条组件。

公开(公告)号：US08115430B2

公开(公告)日：2012-02-14

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逆变器模块提供具有大于或等于直流输入电压值的新的直流输入电压。 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：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。