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    SELECTIVELY RIGIDIZABLE MEMBRANE
    5.
    发明申请
    SELECTIVELY RIGIDIZABLE MEMBRANE 有权

    公开(公告)号：US20210114507A1

    公开(公告)日：2021-04-22

    申请号：US16654292

    申请日：2019-10-16

    Applicant: GM Global Technology Operations LLC

    Inventor： Paul W. Alexander ,  Wonhee M. Kim ,  Jonathan E. Luntz ,  Diann Brei ,  Koray Benli ,  Sarah M. Sober ,  Laura Alejandra Giner Munoz ,  Nancy L. Johnson

    IPC: B60P7/06 ,  B60P7/04

    Abstract: A selectively rigidizable membrane for cargo management comprises a vacuum bladder, and a first architectural layer and a second architectural layer, each of the first and second architectural layers including a plurality of tiles interconnected by flexural elements, each of the tiles of the first and second architectural layers including at least one constraining element extending therefrom, wherein, when atmospheric pressure is present within the vacuum bladder, the first and second architectural layers are slidably moveable relative to one another and the membrane is flexible, and further wherein, when negative pressure is applied to the vacuum bladder, the first and second architectural layers are forced into engagement with one another, the constraining elements of the first and second architectural layers providing mechanical interference and preventing sliding movement of the first and second architectural layers relative to one another, causing the membrane to become substantially rigid.

    Variable friction cargo surface system for vehicles
    6.
    发明授权
    Variable friction cargo surface system for vehicles 有权

    公开(公告)号：US10953784B2

    公开(公告)日：2021-03-23

    申请号：US16178040

    申请日：2018-11-01

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  The Regents of The University Of Michigan

    Inventor： Paul W. Alexander ,  Wonhee M. Kim ,  Diann Brei ,  Jonathan E. Luntz ,  Koray Benli ,  Laura Alejandra Giner Munoz

    IPC: B60P7/08 ,  B63B25/24

    Abstract: Cargo systems are provided for vehicles that include, in one embodiment: a variable cargo surface disposed within a body of the vehicle behind one or more occupant seats, the variable cargo surface including: a low friction surface that facilitates movement of cargo within the cargo system, the low friction surface having a first coefficient of friction; a high friction surface that inhibits movement of cargo within the cargo system, the high friction surface having a second coefficient of friction that is greater than the first coefficient of friction; and a control device that selectively activates the low friction surface and the high friction surface based on conditions for the vehicle; wherein the low friction surface contacts the cargo within the cargo system when the low friction surface is activated; and the high friction surface contacts the cargo within the cargo system when the high friction surface is activated.

    Dielectric elastomer actuator
    8.
    发明授权
    Dielectric elastomer actuator 有权

    公开(公告)号：US10170682B2

    公开(公告)日：2019-01-01

    申请号：US15061575

    申请日：2016-03-04

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  The Regents of the University of Michigan

    Inventor： Paul W. Alexander ,  Nancy L. Johnson ,  Tizoc Cruz Gonzalez ,  Jonathan E. Luntz ,  Diann Brei

    IPC: H01L41/047 ,  H01L41/053 ,  H01L41/09 ,  H01L41/25 ,  H01L41/04

    Abstract: A dielectric elastomer actuator includes an elastomeric film and an electrode material layer on opposing sides of the film. The elastomeric film includes a first section, a second section, and a transition section disposed between the first section and the second section. The electrode material layers are disposed on the transition section and the first and second sections. The first and second sections are restrained in a pre-stretched configuration in an axial and a lateral direction, while the transition section is not restrained in the axial direction. The transition section elongates in response to the application of a voltage to the electrode material layers, such that the first and second sections move apart, in the axial direction. Likewise, the transition section is configured to contract in an absence of a voltage applied to the electrode material layers, such that the first and second sections move apart, in the axial direction.

    System with damper-controlled switch for shape memory alloy actuator motion control
    9.
    发明授权
    System with damper-controlled switch for shape memory alloy actuator motion control 有权
    具有阻尼控制开关的系统，用于形状记忆合金致动器运动控制

    公开(公告)号：US09394888B2

    公开(公告)日：2016-07-19

    申请号：US14632583

    申请日：2015-02-26

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  The Regents of the University of Michigan

    Inventor： Paul W. Alexander ,  Nancy L. Johnson ,  Jonathan E. Luntz ,  Diann Brei ,  Clover Thebolt ,  Brent Utter

    IPC: H02K7/10 ,  F03G7/06

    CPC classification number: F03G7/065

    Abstract: A system for controlling motion of a shape memory alloy (SMA) actuator includes a damper operatively connectable to the SMA actuator and having a movable portion that moves with the SMA actuator when the SMA actuator contracts during electrical activation. An electronic switch is operatively connectable to the SMA actuator and to the damper. The electronic switch has an open position preventing electrical power flow to the SMA actuator, and a closed position permitting electrical power flow to the SMA actuator. A biasing element applies a biasing force that urges the electronic switch to the closed position. The damper overcomes the biasing element to move the switch to the open position only when velocity of the movable portion equals or exceeds a predetermined threshold velocity, and to return to the closed position when the velocity of the movable portion falls below the predetermined threshold velocity.

    Abstract translation: 用于控制形状记忆合金（SMA）致动器的运动的系统包括可操作地连接到SMA致动器并且当SMA致动器在电激活期间收缩时与SMA致动器一起移动的可动部分的阻尼器。 电子开关可操作地连接到SMA致动器和阻尼器。 电子开关具有防止电力流向SMA致动器的打开位置，以及允许电力流向SMA致动器的关闭位置。 偏置元件施加将电子开关推向关闭位置的偏压力。 仅当可移动部分的速度等于或超过预定阈值速度时，阻尼器克服偏置元件才将开关移动到打开位置，并且当可移动部分的速度降到预定阈值速度以下时返回到关闭位置。

    Variable friction cargo surface system for vehicles
    10.
    发明授权
    Variable friction cargo surface system for vehicles 有权

    公开(公告)号：US12194910B2

    公开(公告)日：2025-01-14

    申请号：US17177986

    申请日：2021-02-17

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  The Regents of The University Of Michigan

    Inventor： Paul W. Alexander ,  Wonhee M. Kim ,  Diann Brei ,  Jonathan E. Luntz ,  Koray Benli ,  Laura Alejandra Giner Munoz

    IPC: B60P7/08 ,  B63B25/24

    Abstract: Cargo systems are provided for vehicles that include, in one embodiment: a variable cargo surface disposed within a body of the vehicle behind one or more occupant seats, the variable cargo surface including: a low friction surface that facilitates movement of cargo within the cargo system, the low friction surface having a first coefficient of friction; a high friction surface that inhibits movement of cargo within the cargo system, the high friction surface having a second coefficient of friction that is greater than the first coefficient of friction; and a control device that selectively activates the low friction surface and the high friction surface based on conditions for the vehicle; wherein the low friction surface contacts the cargo within the cargo system when the low friction surface is activated; and the high friction surface contacts the cargo within the cargo system when the high friction surface is activated.

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