公开(公告)号：US07847579B2

公开(公告)日：2010-12-07

申请号：US11769842

申请日：2007-06-28

Applicant: Khwaja M. Rahman ,  Edward L. Kaiser ,  Matthew D. Laba

Inventor： Khwaja M. Rahman ,  Edward L. Kaiser ,  Matthew D. Laba

IPC: G01R31/34 ,  G01R23/20

CPC classification number: G01M15/042 ,  G01R31/343 ,  H02K15/00

Abstract: Methods and systems for evaluating a permanent magnet motor are provided. The method includes the steps of spinning a rotor of the permanent magnet motor; determining a total harmonic distortion of the permanent magnet motor; and comparing the determined total harmonic distortion of the permanent magnet motor with a baseline total harmonic distortion.

Abstract translation: 提供了用于评估永磁电动机的方法和系统。 该方法包括旋转永磁电动机的转子的步骤; 确定永磁电动机的总谐波失真; 并且将确定的永磁电动机的总谐波失真与基线总谐波失真进行比较。

公开(公告)号：US07759965B2

公开(公告)日：2010-07-20

申请号：US11769842

申请日：2007-06-28

Applicant: Khwaja M. Rahman ,  Edward L. Kaiser ,  Matthew D. Laba

Inventor： Khwaja M. Rahman ,  Edward L. Kaiser ,  Matthew D. Laba

IPC: G01R31/34 ,  G01R23/20

Abstract: Methods and systems for evaluating a permanent magnet motor are provided. The method includes the steps of spinning a rotor of the permanent magnet motor; determining a total harmonic distortion of the permanent magnet motor; and comparing the determined total harmonic distortion of the permanent magnet motor with a baseline total harmonic distortion.

公开(公告)号：US20090001996A1

公开(公告)日：2009-01-01

申请号：US11769842

申请日：2007-06-28

Applicant: Khwaja M. Rahman ,  Edward L. Kaiser ,  Matthew D. Laba

Inventor： Khwaja M. Rahman ,  Edward L. Kaiser ,  Matthew D. Laba

IPC: G01R23/20

CPC classification number: G01M15/042 ,  G01R31/343 ,  H02K15/00

Abstract: Methods and systems for evaluating a permanent magnet motor are provided. The method includes the steps of spinning a rotor of the permanent magnet motor; determining a total harmonic distortion of the permanent magnet motor; and comparing the determined total harmonic distortion of the permanent magnet motor with a baseline total harmonic distortion.

Abstract translation: 提供了用于评估永磁电动机的方法和系统。 该方法包括旋转永磁电动机的转子的步骤; 确定永磁电动机的总谐波失真; 并且将确定的永磁电动机的总谐波失真与基线总谐波失真进行比较。

公开(公告)号：US20080282531A1

公开(公告)日：2008-11-20

申请号：US11749802

申请日：2007-05-17

Applicant: Khwaja M. Rahman ,  Eward L. Kaiser ,  Matthew D. Laba

Inventor： Khwaja M. Rahman ,  Eward L. Kaiser ,  Matthew D. Laba

IPC: H02K15/02 ,  H02K15/085

CPC classification number: H02K3/493 ,  H02K3/522 ,  H02K15/0018 ,  H02K15/066 ,  Y10T29/49009 ,  Y10T29/49075

Abstract: Methods and apparatus are provided for improving operational characteristics of a concentrated winding machine. According to an example embodiment, a method comprises fabricating a magnetic slot wedge that is adapted to be joined to a first stator tooth and a second stator tooth, the first and second stator tooth part of a fixed-tooth stator that does not allow relative movement between the first stator tooth and the second stator tooth.

Abstract translation: 提供了用于改善集中绕线机的操作特性的方法和装置。 根据示例性实施例，一种方法包括制造适于被接合到第一定子齿和第二定子齿的磁隙楔，固定齿定子的第一和第二定子齿部分不允许相对运动 在第一定子齿和第二定子齿之间。

公开(公告)号：US09154019B2

公开(公告)日：2015-10-06

申请号：US13494163

申请日：2012-06-12

Applicant: Brian Gallert ,  Khwaja M. Rahman ,  Matthew D. Laba ,  Paul F. Turnbull ,  Brian Schulze

Inventor： Brian Gallert ,  Khwaja M. Rahman ,  Matthew D. Laba ,  Paul F. Turnbull ,  Brian Schulze

IPC: H02K11/00

CPC classification number: H02K11/0005 ,  H02K11/01 ,  H02K11/225

Abstract: A hub assembly for an electric machine includes a rotor hub and a machine rotor. Rotation of the machine rotor generates an electromagnetic (EM) field. The hub assembly includes a resolver rotor that encodes an angular position of the machine rotor as a set of resolver signals. An EM field barrier ring between the resolver rotor and the rotor hub adds a magnetic barrier between the machine rotor and the resolver rotor to reduce noise in the resolver signals. The resolver rotor may be bonded to the EM field barrier ring. The EM field barrier ring may have an L-shaped cross section, and may be press-fitted into a pocket of the rotor hub. A vehicle includes a transmission having an input member and an electric machine having a rotor shaft connected to the input member of the transmission. The electric machine includes the hub assembly noted above.

Abstract translation: 一种用于电机的轮毂组件包括转子轮毂和机器转子。 机器转子的旋转产生电磁（EM）场。 轮毂组件包括一个旋转变压器转子，其将机器转子的角位置编码为一组旋转变压器信号。 旋转变压器转子和转子轮毂之间的EM磁场阻挡环在机器转子和旋转变压器转子之间增加了磁屏障，以减小旋转变压器信号的噪音。 旋转变压器转子可以结合到EM场屏障环上。 EM场阻挡环可以具有L形横截面，并且可以压配合到转子毂的凹部中。 车辆包括具有输入构件的变速器和具有连接到变速器的输入构件的转子轴的电机。 电机包括上述的轮毂组件。

公开(公告)号：US08390240B2

公开(公告)日：2013-03-05

申请号：US12137340

申请日：2008-06-11

Applicant: Constantin C. Stancu ,  Silva Hiti ,  Robert T. Dawsey ,  Erik Hatch ,  Matthew D. Laba ,  Peter J. Savagian

Inventor： Constantin C. Stancu ,  Silva Hiti ,  Robert T. Dawsey ,  Erik Hatch ,  Matthew D. Laba ,  Peter J. Savagian

IPC: H02P23/00

CPC classification number: H02P21/14 ,  B60L15/025 ,  B60L2220/12 ,  B60L2220/14 ,  Y02T10/643

Abstract: Systems and methods are provided for an automotive drive system using an absolute position sensor for field-oriented control of an induction motor. An automotive drive system comprises an induction motor having a rotor, and a position sensor coupled to the induction motor. The position sensor is configured to sense an absolute angular position of the rotor. A processor may be coupled to the position sensor and configured to determine a relative angular position of the rotor based on a difference between the absolute angular position and an initial angular position obtained when the induction motor is started. A controller may be coupled to the induction motor and the processor and configured to provide field-oriented control of the induction motor based on the relative angular position of the rotor.

Abstract translation: 为使用绝对位置传感器用于感应电动机的场定向控制的汽车驱动系统提供系统和方法。 汽车驱动系统包括具有转子的感应电动机和耦合到感应电动机的位置传感器。 位置传感器构造成感测转子的绝对角位置。 处理器可以耦合到位置传感器并且被配置为基于绝对角位置和当感应电动机启动时获得的初始角位置之间的差来确定转子的相对角位置。 控制器可以耦合到感应电动机和处理器并且被配置为基于转子的相对角位置来提供感应电动机的场定向控制。

公开(公告)号：US08138651B2

公开(公告)日：2012-03-20

申请号：US12269463

申请日：2008-11-12

Applicant: Khwaja M. Rahman ,  Edward L. Kaiser ,  Matthew D. Laba

Inventor： Khwaja M. Rahman ,  Edward L. Kaiser ,  Matthew D. Laba

IPC: H02K1/27 ,  H02K21/14

CPC classification number: H02K1/2766 ,  Y02T10/641 ,  Y10T29/49012

Abstract: An internal permanent magnet machine (“IPM machine”) of the type used, for example, with traction motors and hybrid electric vehicles, includes a rotor with an additional air barrier provided above the first magnet barrier in the same rotor slot. Each magnet only fills a portion of each cavity, thereby defining the air barriers. The added air barrier above the permanent magnet of the first layer acts as a barrier to the first layer magnet and lowers the magnet flux.

Abstract translation: 用于例如牵引电动机和混合电动车的类型的内部永久磁铁机（“IPM机”）包括在相同转子槽中设置在第一磁体屏障上方的附加空气阻挡件的转子。 每个磁体仅填充每个空腔的一部分，从而限定空气屏障。 第一层永久磁铁上方的附加空气阻挡层作为第一层磁体的阻挡层，降低磁通量。

公开(公告)号：US08129880B2

公开(公告)日：2012-03-06

申请号：US11940407

申请日：2007-11-15

Applicant: Khwaja M. Rahman ,  Edward L. Kaiser ,  Matthew D. Laba

Inventor： Khwaja M. Rahman ,  Edward L. Kaiser ,  Matthew D. Laba

IPC: H02K3/48

CPC classification number: H02K1/148 ,  H02K3/345 ,  H02K3/493

Abstract: Methods and apparatus are provided for improving operational characteristics of a concentrated winding machine. According to an example embodiment, an apparatus comprises stator teeth having distal ends, the stator teeth arranged in an annular fashion about an axis to define stator slots between adjacent teeth and slot openings between the distal ends of the adjacent teeth, the stator teeth structured to prevent relative movement between adjacent teeth. The apparatus further comprises magnetic wedges structured to be inserted between the distal ends of the adjacent teeth to close the slot openings.

Abstract translation: 提供了用于改善集中绕线机的操作特性的方法和装置。 根据示例性实施例，一种设备包括具有远端的定子齿，定子齿围绕轴线以环形方式布置，以在相邻齿之间限定定子槽和相邻齿的远端之间的狭槽开口，定子齿构造成 防止相邻牙齿之间的相对运动。 该装置还包括构造成插入相邻齿的远端之间的磁楔，以闭合槽开口。

公开(公告)号：US20080020875A1

公开(公告)日：2008-01-24

申请号：US11459375

申请日：2006-07-24

Applicant: Richard K. Serrels (Deceased) ,  Peter J. Savagian ,  Matthew D. Laba

Inventor： Richard K. Serrels (Deceased) ,  Peter J. Savagian ,  Matthew D. Laba

IPC: F16H61/00 ,  F16H7/12

CPC classification number: B60K6/48 ,  Y02T10/6221

Abstract: The apparatus of the present invention is adapted to supply power to one or more of the belt driven accessories of a hybrid electro-mechanical vehicle while the engine is off. Additionally, the power may be provided to multiple accessories with a single electric motor thereby saving the cost associated with manufacturing and installing a separate electric motor for each accessory. The apparatus includes an electric motor, a motor clutch, an engine clutch, and an accessory drive belt. When the engine is on, the accessory drive belt transfers torque from the engine crank shaft to the belt driven accessories. When the engine is off, the accessory drive belt transfers torque from the electric motor to the belt driven accessories.

Abstract translation: 本发明的装置适于在发动机关闭时向混合机电车辆的一个或多个带驱动附件供电。 此外，可以使用单个电动机将功率提供给多个附件，从而节省与每个附件的制造和安装单独的电动机相关的成本。 该装置包括电动马达，马达离合器，发动机离合器和附件驱动带。 当发动机打开时，附件驱动带将扭矩从发动机曲轴传递到带驱动附件。 当发动机关闭时，附件驱动带将扭矩从电动机传递到皮带驱动的附件。