公开(公告)号：US20160126789A1

公开(公告)日：2016-05-05

申请号：US14529684

申请日：2014-10-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mohammad Faizul Momen ,  Khwaja M. Rahman

IPC: H02K1/16 ,  H02K1/27

CPC classification number: H02K1/165 ,  H02K29/03 ,  H02K2201/06

Abstract: A permanent magnet (PM) motor includes a stator defining an inner stator opening. The inner stator opening extends along a stator axis. The PM motor further includes a rotor disposed inside the stator. The stator includes a plurality of lamination segments stacked together along the stator axis. Each lamination segment includes an annular stator body and teeth extending from the annular stator body toward the stator axis. The teeth are spaced apart from one another so as to define a plurality of slots arranged annularly about the stator axis. The stator defines slot openings arranged annularly about the stator axis. At least one of the lamination segments is rotationally offset relative to another lamination segments so that at least one of the slot openings is circumferentially offset from another slot openings in the other lamination segment.

Abstract translation: 永磁（PM）电动机包括限定内定子开口的定子。 内定子开口沿着定子轴线延伸。 PM电动机还包括设置在定子内部的转子。 定子包括沿着定子轴线堆叠在一起的多个层压段。 每个层压段包括环形定子体和从环形定子体向定子轴线延伸的齿。 齿彼此间隔开，以便限定围绕定子轴线环形排列的多个槽。 定子限定围绕定子轴线环形布置的槽开口。 层压段中的至少一个相对于另一个层压段旋转地偏移，使得至少一个槽开口沿着另一个层压段中的另一个狭槽开口周向偏移。

公开(公告)号：US20160276885A1

公开(公告)日：2016-09-22

申请号：US14788946

申请日：2015-07-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sinisa Jurkovic ,  Mohammad Faizul Momen ,  Khwaja M. Rahman

IPC: H02K1/27

CPC classification number: H02K1/2766 ,  H02K29/03 ,  H02K2201/06

Abstract: An interior permanent magnet machine includes a rotor having a central axis and a plurality of axial segments. The axial segments include a first axial segment and a second axial segment positioned adjacent to each other in an axial direction. Each of the axially-spaced segments includes at least one pole defining a respective angular configuration characterized by respective first, second and third angles. The first axial segment defines a first set of angular configurations and the second axial segment defines a second set of angular configurations. The rotor is configured to have an axially asymmetric configuration such that the first set of angular configurations is different from the second set of angular configurations.

Abstract translation: 内置永磁电机包括具有中心轴和多个轴向段的转子。 轴向段包括在轴向方向上彼此相邻定位的第一轴向段和第二轴向段。 每个轴向间隔的段包括限定相应的角度构造的至少一个极，其特征在于相应的第一，第二和第三角度。 第一轴向段限定第一组角度构造，第二轴向段限定第二组角度构造。 转子被构造成具有轴向非对称构造，使得第一组角度构造不同于第二组角度构造。

公开(公告)号：US10003227B2

公开(公告)日：2018-06-19

申请号：US14788946

申请日：2015-07-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sinisa Jurkovic ,  Mohammad Faizul Momen ,  Khwaja M. Rahman

IPC: H02K1/27 ,  H02K29/03

CPC classification number: H02K1/2766 ,  H02K29/03 ,  H02K2201/06

Abstract: An interior permanent magnet machine includes a rotor having a central axis and a plurality of axial segments. The axial segments include a first axial segment and a second axial segment positioned adjacent to each other in an axial direction. Each of the axially-spaced segments includes at least one pole defining a respective angular configuration characterized by respective first, second and third angles. The first axial segment defines a first set of angular configurations and the second axial segment defines a second set of angular configurations. The rotor is configured to have an axially asymmetric configuration such that the first set of angular configurations is different from the second set of angular configurations.

公开(公告)号：US20170077854A1

公开(公告)日：2017-03-16

申请号：US14854171

申请日：2015-09-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yo Chan Son ,  Brian A. Welchko ,  Dwarakanath V. Simili ,  Mohammad Faizul Momen ,  Aayush Gupta ,  Chia-Chou Yeh

IPC: H02P21/00 ,  H02P27/08 ,  H02P6/10

CPC classification number: H02P6/10 ,  H02P21/22

Abstract: A multi-phase electric machine electrically connected to an inverter is described. A method for controlling the electric machine includes determining an initial current command responsive to a torque command for the electric machine and determining an expected torque ripple associated with operation of the electric machine. A mitigation current command is determined based upon the torque command and the expected torque ripple, and the electric machine is dynamically controlled responsive to the initial current command and the mitigation current command.

Abstract translation: 描述了电连接到逆变器的多相电机。 一种用于控制电机的方法包括：响应于电机的转矩指令确定初始电流指令，并确定与电机操作相关的预期转矩脉动。 根据转矩指令和预期的转矩波动来确定减轻电流指令，并且响应于初始电流指令和缓解电流指令动态控制电机。