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    Slotted permanent magnets for electric machines
    2.
    发明授权
    Slotted permanent magnets for electric machines 有权

    公开(公告)号：US10666099B1

    公开(公告)日：2020-05-26

    申请号：US16199868

    申请日：2018-11-26

    Applicant: GM Global Technology Operations LLC

    Inventor： Alireza Fatemi ,  Thomas W. Nehl ,  David J. Brooks

    IPC: H02K1/27 ,  H02K7/00 ,  H02K15/03

    Abstract: Presented are slotted permanent magnets (PM) for electric machines, motor generator units using slotted PMs, methods for making/using slotted PMs, and motor vehicles equipped with an electric traction motor using slotted PMs. An electric machine includes an annular stator with a hollow core and one or more internal stator slots. One or more electrically conductive windings is/are disposed in the stator slot(s). A cylindrical rotor is rotatably disposed inside the hollow core of the stator. One or more permanent magnets is/are mounted to the rotor. Each permanent magnet includes a rigid, single-piece PM body with opposing first and second faces. A first set of elongated grooves is recessed into the first face. An optional second set of elongated grooves is recessed into the second face. Each of the grooves has a depth that is substantially parallel to a direction of a magnetic field generated by the permanent magnet.

    ACTIVE DISCONNECT DEVICE
    7.
    发明申请
    ACTIVE DISCONNECT DEVICE 有权

    公开(公告)号：US20210344187A1

    公开(公告)日：2021-11-04

    申请号：US16863412

    申请日：2020-04-30

    Applicant: GM Global Technology Operations LLC

    Inventor： Chandra S. Namuduri ,  Rashmi Prasad ,  Thomas W. Nehl ,  David J. Brooks

    IPC: H02H3/08 ,  H05K1/18

    Abstract: A disconnect device includes a mounting plate having a thermally conductive substrate applied onto the mounting plate. A first layer of an electrically conductive material is applied onto the substrate. A semiconductor switch supported on the first layer connects or disconnects an input power source to or from a load. A second layer of an electrically conductive material applied onto the substrate is electrically isolated from the first layer. An electronic sensing, control and protection circuit is supported on the second layer and is connected to the semiconductor switch to control operation of the semiconductor switch. A control unit in communication with the electronic sensing, control and protection circuit via an electrically isolated control path provides control and communication between the electronic sensing, control and protection circuit and the semiconductor switch.

    DRIVER MODEL ESTIMATION, CLASSIFICATION, AND ADAPTATION FOR RANGE PREDICTION
    8.
    发明申请
    DRIVER MODEL ESTIMATION, CLASSIFICATION, AND ADAPTATION FOR RANGE PREDICTION 有权

    公开(公告)号：US20210146785A1

    公开(公告)日：2021-05-20

    申请号：US16687927

    申请日：2019-11-19

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Yue-Yun Wang ,  Jun-mo Kang ,  Dongxu Li ,  Chunhao J. Lee ,  Jinzhu Chen ,  Donald K. Grimm ,  David J. Brooks

    IPC: B60L15/20 ,  G06N20/00 ,  G06N5/04

    Abstract: A method of using a control system to estimate range of an electrified vehicle operated by a driver includes monitoring a first set of driver behaviors while the vehicle is in operation and comparing the monitored first set of driver behaviors to a plurality of known profiles having respective stored behaviors. The method may include matching the first set of driver behaviors to at least one of the known profiles to create an adapted driver model, modeling an adapted drive cycle profile based on the matched adapted driver model, and calculating a predicted driving range based on the adapted drive cycle profile. The method may classify the monitored first set of driver behaviors as at least one of conservative, neutral, and aggressive, relative to the plurality of known profiles, and model the adapted drive cycle profile is further based on the conservative, neutral, or aggressive classification.

    Active disconnect device
    10.
    发明授权
    Active disconnect device 有权

    公开(公告)号：US11316335B2

    公开(公告)日：2022-04-26

    申请号：US16863412

    申请日：2020-04-30

    Applicant: GM Global Technology Operations LLC

    Inventor： Chandra S. Namuduri ,  Rashmi Prasad ,  Thomas W. Nehl ,  David J. Brooks

    IPC: H02H3/08 ,  H05K1/18

    Abstract: A disconnect device includes a mounting plate having a thermally conductive substrate applied onto the mounting plate. A first layer of an electrically conductive material is applied onto the substrate. A semiconductor switch supported on the first layer connects or disconnects an input power source to or from a load. A second layer of an electrically conductive material applied onto the substrate is electrically isolated from the first layer. An electronic sensing, control and protection circuit is supported on the second layer and is connected to the semiconductor switch to control operation of the semiconductor switch. A control unit in communication with the electronic sensing, control and protection circuit via an electrically isolated control path provides control and communication between the electronic sensing, control and protection circuit and the semiconductor switch.

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