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    ELECTRIC POWER ASSEMBLY FOR A VEHICLE
    91.
    发明申请
    ELECTRIC POWER ASSEMBLY FOR A VEHICLE 有权
    电动总成用于车辆

    公开(公告)号：US20150035470A1

    公开(公告)日：2015-02-05

    申请号：US13959196

    申请日：2013-08-05

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Alan G. Holmes ,  Paul F. Turnbull

    IPC: H02P25/02 ,  H02K19/12

    CPC classification number: H02P25/021 ,  H02K19/12

    Abstract: An electric power assembly for a vehicle is disclosed. An electric motor includes a stator and a rotor being rotatable about a pivot axis relative to the stator. An inverter is coupled to the electric motor and includes a power switching device that outputs an electrical signal from the inverter at a first frequency and having interference at a second frequency. The second frequency is a byproduct of the electrical signal creating the first frequency. The stator is electrically connected to the inverter to receive the first frequency such that the stator produces a first magnetic field. A frequency filter is attached to the rotor and directs the portion of the electrical signal having the second frequency to the rotor such that the rotor produces a second magnetic field that interacts with the first magnetic field to rotate the rotor about the pivot axis relative to the stator.

    Abstract translation: 公开了一种用于车辆的电力总成。 电动机包括定子和可相对于定子绕枢轴旋转的转子。 逆变器耦合到电动机，并且包括功率开关装置，其以第一频率从逆变器输出电信号并且具有第二频率的干扰。 第二频率是产生第一频率的电信号的副产物。 定子电连接到逆变器以接收第一频率，使得定子产生第一磁场。 频率滤波器附接到转子并且将具有第二频率的电信号的部分引导到转子，使得转子产生与第一磁场相互作用的第二磁场，以使转子围绕枢转轴线相对于第一磁场旋​​转 定子。

    System and method of differentiating torque between wheels of a vehicle
    92.
    发明授权
    System and method of differentiating torque between wheels of a vehicle 有权
    车辆车轮之间的扭矩差分系统和方法

    公开(公告)号：US08944950B2

    公开(公告)日：2015-02-03

    申请号：US13633185

    申请日：2012-10-02

    Applicant: GM Global Technology Operations LLC

    Inventor： Alan G. Holmes

    IPC: B60K17/12

    CPC classification number: B60K6/52 ,  B60K2001/001 ,  B60W10/08 ,  B60W20/00 ,  B60W30/045 ,  B60W2720/406 ,  B60Y2300/82 ,  F16H2048/368 ,  Y02T10/6265

    Abstract: An electric drive unit (EDU) is configured for driving a first and second wheel of a vehicle. The EDU includes a rotor, a stator, a first planetary gear set, a second planetary gear set, and a pair of engagement mechanisms. The first planetary gear set is operatively connected to the rotor and rotates about the drive axis in response to rotation of the rotor to transmit torque to the first wheel. The second planetary gear set is operatively connected to the rotor and rotates about the drive axis in response to rotation of the rotor to transmit torque to the second wheel. Rotation of the rotor causes each of the planetary gear sets to rotate about the drive axis. Each engagement mechanism is selectively engages a respective one of the planetary gear sets to vary the torque transmitted to the respective wheel.

    Abstract translation: 电驱动单元（EDU）构造成用于驱动车辆的第一和第二轮。 EDU包括转子，定子，第一行星齿轮组，第二行星齿轮组和一对接合机构。 第一行星齿轮组可操作地连接到转子并且响应于转子的旋转而围绕驱动轴线旋转以将扭矩传递到第一车轮。 第二行星齿轮组可操作地连接到转子并响应于转子的旋转而围绕驱动轴线旋转以将扭矩传递到第二轮。 转子的旋转使得每个行星齿轮组围绕驱动轴线旋转。 每个接合机构选择性地接合相应的一个行星齿轮组以改变传递到相应车轮的扭矩。

    ELECTRICALLY ACTUATED ROTATING BAND TORQUE TRANSMITTING MECHANISM FOR HYBRID AND OTHER TRANSMISSIONS
    93.
    发明申请
    ELECTRICALLY ACTUATED ROTATING BAND TORQUE TRANSMITTING MECHANISM FOR HYBRID AND OTHER TRANSMISSIONS 有权
    用于混合动力和其他变速箱的电动执行旋转扭矩传动机构

    公开(公告)号：US20150014115A1

    公开(公告)日：2015-01-15

    申请号：US13939269

    申请日：2013-07-11

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Alan G. Holmes ,  Anthony L. Smith ,  Scott H. Wittkopp ,  Anthony J. Corsetti ,  Scott William Heitzenrater

    IPC: F16D13/08

    CPC classification number: F16D13/08 ,  F16D13/12 ,  F16D27/02 ,  F16D28/00 ,  F16D49/02

    Abstract: A torque transmitting mechanism includes a drum attached to one of a first member and a second member, and a shell attached to another of the first member and the second member. The drum and the shell are concentrically disposed about a longitudinal axis, with the shell concentrically disposed about the drum. An electric motor includes a stator, and a first rotor rotatable about the longitudinal axis relative to the stator. A band is coupled to the shell, wrapped around the drum between four and twelve complete revolutions, and includes a first end attached to the first rotor for rotation with the first rotor. The band includes a second end attached to a reaction member. Rotation of the first rotor tightens the band against the drum to bias the drum against the shell, to transmit torque between the first member and the second member.

    Abstract translation: 扭矩传递机构包括安装在第一构件和第二构件中的一个的滚筒以及附接到第一构件和第二构件中的另一个的壳体。 滚筒和壳体围绕纵向轴线同心地设置，壳体围绕滚筒同心地设置。 电动机包括定子和相对于定子围绕纵向轴线旋转的第一转子。 带子耦合到壳体，围绕滚筒缠绕在四到十二个完整的转动之间，并且包括附接到第一转子以与第一转子一起旋转的第一端。 带包括连接到反应构件的第二端。 第一转子的旋转将带压紧在滚筒上，以将滚筒偏压在壳体上，以在第一构件和第二构件之间传递扭矩。

    INVERTER CONTROL METHOD AND VEHICLE HAVING SAME
    95.
    发明申请
    INVERTER CONTROL METHOD AND VEHICLE HAVING SAME 有权
    逆变器控制方法及具有相同特性的车辆

    公开(公告)号：US20140265975A1

    公开(公告)日：2014-09-18

    申请号：US13794947

    申请日：2013-03-12

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Alan G. Holmes ,  William R. Cawthorne ,  Michael J. Grimmer ,  Steven E. Schulz ,  John P. Miller

    IPC: B60L15/20

    CPC classification number: B60L15/20 ,  B60L15/2045 ,  B60L2210/40 ,  B60L2240/423 ,  B60L2240/441 ,  B60L2240/443 ,  B60L2240/526 ,  B60L2270/142 ,  Y02T10/645 ,  Y02T10/7241 ,  Y02T10/7283

    Abstract: A method of controlling a power inverter coupled to an electric motor in a vehicle powertrain having an engine is provided. The method includes generating a voltage waveform signal and a switching frequency signal for the inverter via a controller. At least one of the voltage waveform signal and the switching frequency signal is at least partially based on at least one commanded engine operating parameter. For example, the engine on/off state, engine torque, and engine speed can be considered. A vehicle having a controller configured to implement the method is also provided.

    Abstract translation: 提供一种在具有发动机的车辆动力传动系中控制耦合到电动机的功率逆变器的方法。 该方法包括通过控制器产生用于逆变器的电压波形信号和开关频率信号。 电压波形信号和开关频率信号中的至少一个至少部分地基于至少一个命令的发动机操作参数。 例如，可以考虑发动机开/关状态，发动机扭矩和发动机转速。 还提供了具有实现该方法的控制器的车辆。

    RELUCTANCE ASSISTED AXIAL FLUX ELECTRIC MOTOR
    96.
    发明申请
    RELUCTANCE ASSISTED AXIAL FLUX ELECTRIC MOTOR 有权

    公开(公告)号：US20250112512A1

    公开(公告)日：2025-04-03

    申请号：US18506185

    申请日：2023-11-10

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Vincent Fedida ,  Alan G. Holmes ,  Chengwu Duan ,  Jian Yao

    IPC: H02K1/2798 ,  H02K1/24 ,  H02K16/02

    Abstract: A rotor for mounting on a rotational axis in an axial flux electric motor includes a ferromagnetic rotor core. The rotor also includes a plurality of alternating south and north pole permanent magnets (PMs) arranged on the ferromagnetic rotor core symmetrically around the rotational axis and facing the stator. The ferromagnetic rotor core includes a plurality of core saliencies extending to the rotor exterior surface. Each of the core saliencies is arranged between one south pole PM and one north pole PM. The plurality of core saliencies is phase-angle shifted relative to the plurality of alternating south and north pole PMs to thereby alter magnetic reluctance of the electric motor. An axial flux electric motor employing the above-described rotor is also contemplated.

    AXIAL FLUX ELECTRIC MOTOR WITH ROTOR COOLING
    97.
    发明申请
    AXIAL FLUX ELECTRIC MOTOR WITH ROTOR COOLING 有权

    公开(公告)号：US20250088054A1

    公开(公告)日：2025-03-13

    申请号：US18609135

    申请日：2024-03-19

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Jian Yao ,  Chengwu Duan ,  Vincent Fedida ,  SeungHwan Keum ,  Alan G. Holmes

    IPC: H02K1/32 ,  H02K1/24 ,  H02K1/2795 ,  H02K5/20 ,  H02K11/25 ,  H02K16/02

    Abstract: A cooled axial flux electric motor includes a rotationally-fixed stator defining a rotational axis and having a plurality of conductive stator magnetic poles arranged radially about the axis. The motor also includes a rotor spaced axially from one side from the stator and rotatably mounted coaxially with the rotational axis and defined by inside and outside diameters. The rotor has a first exterior surface facing the stator and a second exterior surface arranged opposite the first exterior surface. A ferromagnetic rotor core defines the rotor second exterior surface. The rotor also includes alternating south and north pole permanent magnets (PMs) arranged on the rotor core symmetrically around the axis and facing the stator. The rotor additionally includes channels extending radially outwardly across the rotor and configured to direct a coolant, via centrifugal force, from the inside diameter toward the outside diameter as the rotor rotates about the axis.

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