公开(公告)号：US07728562B2

公开(公告)日：2010-06-01

申请号：US11829285

申请日：2007-07-27

Applicant: Lateef A. Kajouke ,  Brian A Welchko

Inventor： Lateef A. Kajouke ,  Brian A Welchko

IPC: G05F1/10 ,  H02M7/537

CPC classification number: H02M7/53871 ,  H02M2001/007

Abstract: Systems and methods are disclosed for a DC boost converter. The systems and methods combine operation of an inductor with the input capacitor of a DC/AC inverter via a switch configuration to power the DC/AC inverter. The switch configuration is controlled by a plurality of control signals generated by a controller based on a variety of control modes, and feedback signals.

Abstract translation: 公开了用于DC升压转换器的系统和方法。 该系统和方法通过开关配置将电感器与DC / AC逆变器的输入电容器的操作相结合，为DC / AC逆变器供电。 开关配置由控制器基于各种控制模式和反馈信号产生的多个控制信号来控制。

公开(公告)号：US07652858B2

公开(公告)日：2010-01-26

申请号：US11758974

申请日：2007-06-06

Applicant: David Tang ,  Brian A Welchko ,  Silva Hiti ,  Mark L Selogie

Inventor： David Tang ,  Brian A Welchko ,  Silva Hiti ,  Mark L Selogie

IPC: H02H7/09

CPC classification number: H02H7/0838

Abstract: Methods and apparatus are provided for protecting a motor control circuit in a permanent magnet electric motor system. The permanent magnet electric motor system includes a permanent magnet electric motor having a predetermined number of windings corresponding to the phases of the permanent magnet electric motor and a direct current (DC) bus coupled to a power source for providing operational power for the electric motor system. A motor control circuit is connected to the DC bus for receiving the operational power therefrom and is connected to the windings of the permanent magnet electric motor for controlling the permanent magnet electric motor. A protection circuit is connected to the DC bus for receiving the voltage therefrom for operation of the protection circuit and for detecting predetermined motor control circuit fault conditions from voltage sensed on the DC bus and in response thereto providing protection for the motor control circuit.

Abstract translation: 提供了用于保护永磁电动机系统中的电动机控制电路的方法和装置。 永磁电动机系统包括具有对应于永磁电动机的相位的预定数量的绕组的永磁电动机和耦合到用于为电动机系统提供动力的电源的直流（DC）母线 。 电动机控制电路连接到DC总线，用于从其接收操作电力，并连接到用于控制永磁电动机的永磁电动机的绕组。 保护电路连接到DC总线，用于从其接收电压用于保护电路的操作，并且用于从DC总线上感测到的电压检测预定的电机控制电路故障状况，并响应于此为电机控制电路提供保护。

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：US07286375B1

公开(公告)日：2007-10-23

申请号：US11625962

申请日：2007-01-23

Applicant: Brian A Welchko ,  Silva Hiti ,  Steven E. Schulz

Inventor： Brian A Welchko ,  Silva Hiti ,  Steven E. Schulz

IPC: H02M1/12 ,  H02M7/68 ,  H02M7/44

CPC classification number: H02M7/53803 ,  H02M2001/385

Abstract: Methods and apparatus are provided for compensating for a deviation in voltage output of a phase leg inverter when dead-time periods are inserted to prevent shoot-through failures. The method includes determining a pulse width for an input signal to the inverter such that the inverter voltage output is a desired amount. The pulse width is based on the non-inverted or inverted pulse sequences of two carrier signals and the polarity of current through the inverter. An amount of pulse width is added to the input signal when the current is positive, and an amount of pulse width is subtracted from the input signal when the current is negative. An additional amount of pulse width is added to or subtracted from the input signal depending on whether the carrier signal sequence changes from a non-inverted signal to an inverted signal or changes from an inverted signal to a non-inverted signal, respectively.

Abstract translation: 提供了方法和装置，用于在插入死区时间时补偿相位臂逆变器的电压输出偏差，以防止直通故障。 该方法包括：确定用于反相器的输入信号的脉冲宽度，使得逆变器电压输出为期望的量。 脉冲宽度基于两个载波信号的非反相或反相脉冲序列以及通过反相器的电流极性。 当电流为正时，将一定量的脉冲宽度加到输入信号上，当电流为负时，从输入信号中减去一定量的脉冲宽度。 根据载波信号序列是否从非反相信号改变为反相信号，或分别从反相信号改变为非反相信号，将附加量的脉冲宽度加到输入信号或从输入信号中减去。

公开(公告)号：US07755319B2

公开(公告)日：2010-07-13

申请号：US11756421

申请日：2007-05-31

Applicant: Silva Hiti ,  Steven E. Schulz ,  Brian A Welchko

Inventor： Silva Hiti ,  Steven E. Schulz ,  Brian A Welchko

IPC: H02P27/04

CPC classification number: H02M7/53875 ,  B60L15/025 ,  B60L2210/42 ,  B60L2240/70 ,  H02M2001/0054 ,  H02M2007/53876 ,  Y02T10/643 ,  Y02T10/7241 ,  Y02T10/7291 ,  Y02T90/16

Abstract: Apparatus, systems, and methods are provided for reducing voltage source inverter losses. One apparatus includes a sensor couplable to the motor and configured to sense an operating frequency of the motor and an amount of torque produced by the motor. The apparatus also includes a controller coupled to the sensor, the controller configured to determine a zero vector modulation (ZVM) based on the sensed frequency and torque. A system includes means for sensing a threshold output frequency of the motor and means for sensing a threshold torque of the motor. The system also includes means for determining a ZVM for the inverter based on the sensed threshold frequency and threshold torque. One method includes sensing that a motor is operating below a threshold frequency and is producing torque above a threshold torque amount. The method also includes determining a ZVM for the inverter based on the sensed frequency and torque.

Abstract translation: 提供了用于减少电压源逆变器损耗的装置，系统和方法。 一种装置包括可耦合到电动机并且被配置为感测电动机的工作频率和由电动机产生的转矩的量的传感器。 该装置还包括耦合到传感器的控制器，该控制器被配置成基于感测到的频率和转矩来确定零矢量调制（ZVM）。 系统包括用于感测电动机的阈值输出频率的装置和用于感测电动机的阈值转矩的装置。 该系统还包括用于基于感测的阈值频率和阈值扭矩来确定用于逆变器的ZVM的装置。 一种方法包括检测电动机工作在阈值频率以下并且产生高于阈值扭矩量的转矩。 该方法还包括基于感测的频率和转矩来确定逆变器的ZVM。

公开(公告)号：US07723946B2

公开(公告)日：2010-05-25

申请号：US11736687

申请日：2007-04-18

Applicant: Brian A Welchko ,  Steven E. Schulz ,  Silva Hiti

Inventor： Brian A Welchko ,  Steven E. Schulz ,  Silva Hiti

IPC: H02P27/04

CPC classification number: H02M1/12 ,  H02P27/08 ,  H03K7/04

Abstract: Method and system are provided for controlling an alternating current (AC) motor via an inverter. The method includes selecting a pulse sequencing method based on a modulation index of the inverter, and providing a voltage to the AC motor based on the pulse sequencing method. The system includes an inverter having a modulation index (Mi) and a controller coupled to the inverter. The controller selects a pulse sequencing method based on Mi and produces a signal based on the pulse sequencing method. The inverter includes a switch network producing a voltage in response to the signal, and the voltage drives the AC motor.

Abstract translation: 提供了用于通过逆变器控制交流（AC）电动机的方法和系统。 该方法包括基于逆变器的调制指数选择脉冲排序方法，并且基于脉冲排序方法向交流电动机提供电压。 该系统包括具有调制指数（Mi）的逆变器和耦合到逆变器的控制器。 控制器选择基于Mi的脉冲排序方法，并根据脉冲排序方法产生信号。 逆变器包括响应于信号产生电压的开关网络，并且电压驱动AC电动机。

公开(公告)号：US07595600B2

公开(公告)日：2009-09-29

申请号：US11759266

申请日：2007-06-07

Applicant: Nitinkumar R. Patel ,  Brian A Welchko ,  Bonho Bae ,  Steven E. Schulz

Inventor： Nitinkumar R. Patel ,  Brian A Welchko ,  Bonho Bae ,  Steven E. Schulz

IPC: H02P7/00

CPC classification number: H02P21/141 ,  H02P21/20

Abstract: Methods and systems are provided for controlling permanent magnet machines. The method includes determining a maximum torque of the PM machine based on an error between a commanded d-axis flux and an estimated d-axis flux of the PM machine, and adjusting a torque command based on the maximum torque. The error associated with a variation between a current temperature and a nominal temperature of the PM machine.

Abstract translation: 提供用于控制永磁机的方法和系统。 该方法包括基于指令的d轴磁通与PM机的估计d轴磁通之间的误差来确定PM机的最大转矩，以及基于最大转矩来调整转矩指令。 与PM机的当前温度和标称温度之间的变化相关的误差。

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：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。