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    IMPACT PROTECTION STRUCTURES WITH LAYERED HONEYCOMB AND CORRUGATED DESIGNS AND METHODS FOR MAKING THE SAME
    1.
    发明申请
    IMPACT PROTECTION STRUCTURES WITH LAYERED HONEYCOMB AND CORRUGATED DESIGNS AND METHODS FOR MAKING THE SAME 有权

    公开(公告)号：US20210214021A1

    公开(公告)日：2021-07-15

    申请号：US16741252

    申请日：2020-01-13

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Venkateshwar R. Aitharaju ,  Xiaosong Huang ,  Gurpinder Dhaliwal ,  David E Roth ,  Tejas R. Bhavsar

    IPC: B62D29/04 ,  B60R19/02 ,  B60R19/03 ,  B62D21/15

    Abstract: Presented are multilayer, fiber-reinforced impact protection structures with honeycomb-core or corrugated-layer designs, methods for making/using such structures, and vehicles with traction battery packs supported on skid plates fabricated from such structures. A multilayer impact protection structure includes a first layer with continuous fibers embedded in a polymeric matrix, and a second layer that is attached to the first layer and includes an elastomeric polymer. A third layer, which is attached to one side of the first layer opposite that of the second layer, includes a fiber-reinforced polymer honeycomb and/or corrugated structure. An optional fracture detection circuit is attached to the first or third layer, and is configured to detect a break in the impact protection structure. The corrugated structure may include multiple reinforcement ribs that are interposed within and substantially orthogonal to a series of mutually parallel, elongated ridges. Comparatively, the honeycomb structure includes a lattice of adjoining polygonal cells.

    AIRBAG PROTECTION SYSTEM FOR VEHICLE BATTERY PACKS
    4.
    发明申请
    AIRBAG PROTECTION SYSTEM FOR VEHICLE BATTERY PACKS 审中-公开

    公开(公告)号：US20190092262A1

    公开(公告)日：2019-03-28

    申请号：US15718108

    申请日：2017-09-28

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Mahesh Mummigatti ,  Tejas R. Bhavsar ,  Sriram Seshadri

    IPC: B60R21/20 ,  B60R21/0132 ,  B60K6/28 ,  B60L11/18

    Abstract: A vehicle includes a first seat and a second seat occupying a vehicle body, a battery pack disposed between the first seat and the second seat, a first inboard airbag, and a second inboard airbag, and optionally a first outboard airbag and a second outboard airbag. The airbags are deployable from a packed position to or between an inflated position. The first inboard airbag is configured to deploy and occupy a space between the first seat and the battery pack, the first outboard airbag is configured to deploy and occupy a space between the first seat and the first side of the vehicle body, the second inboard airbag is configured to deploy and occupy a space between the second seat and the battery pack, and the second outboard airbag is configured to deploy and occupy a space between the second seat and the second side of the vehicle body.

    Impact protection structures with layered honeycomb and corrugated designs and methods for making the same
    5.
    发明授权
    Impact protection structures with layered honeycomb and corrugated designs and methods for making the same 有权

    公开(公告)号：US11208155B2

    公开(公告)日：2021-12-28

    申请号：US16741252

    申请日：2020-01-13

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Venkateshwar R. Aitharaju ,  Xiaosong Huang ,  Gurpinder Dhaliwal ,  David E Roth ,  Tejas R. Bhavsar

    IPC: B62D29/04 ,  B60R19/02 ,  B60R19/03 ,  B62D21/15 ,  B60R19/18

    Abstract: Presented are multilayer, fiber-reinforced impact protection structures with honeycomb-core or corrugated-layer designs, methods for making/using such structures, and vehicles with traction battery packs supported on skid plates fabricated from such structures. A multilayer impact protection structure includes a first layer with continuous fibers embedded in a polymeric matrix, and a second layer that is attached to the first layer and includes an elastomeric polymer. A third layer, which is attached to one side of the first layer opposite that of the second layer, includes a fiber-reinforced polymer honeycomb and/or corrugated structure. An optional fracture detection circuit is attached to the first or third layer, and is configured to detect a break in the impact protection structure. The corrugated structure may include multiple reinforcement ribs that are interposed within and substantially orthogonal to a series of mutually parallel, elongated ridges. Comparatively, the honeycomb structure includes a lattice of adjoining polygonal cells.

    BATTERY MODULE AND METHOD OF FORMING A BATTERY MODULE HOUSING
    6.
    发明申请
    BATTERY MODULE AND METHOD OF FORMING A BATTERY MODULE HOUSING 审中-公开

    公开(公告)号：US20200036067A1

    公开(公告)日：2020-01-30

    申请号：US16046135

    申请日：2018-07-26

    Applicant: GM Global Technology Operations LLC

    Inventor： Mahesh A. Mummigatti ,  Tejas R. Bhavsar ,  Nagaraj Angadi

    IPC: H01M10/6568 ,  H01M2/10 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6556

    Abstract: A battery module includes a plurality of battery cells and a battery module 4 housing configured to at least partially enclose the plurality of battery cells. The battery module housing includes at least one wall defining an outer periphery and an opposing inner periphery. A fluid interchange system includes one or more channels formed in and extending at least partially through the at least one wall, at least one inlet portion defined in and extending at least partially through the at least one wall, and at least one outlet portion defined in and extending at least partially through the at least one wall. A coolant is introduced to the fluid interchange system through the at least one inlet portion, circulated through the one or more channels and exits the fluid interchange system through the at least one outlet portion to cool the plurality of battery cells in the battery module housing.

    TUNABLE SPRING THAT ACCOMODATES CELL-TO-CELL EXPANSION IN A BATTERY ASSEMBLY
    7.
    发明申请
    TUNABLE SPRING THAT ACCOMODATES CELL-TO-CELL EXPANSION IN A BATTERY ASSEMBLY 有权

    公开(公告)号：US20250118851A1

    公开(公告)日：2025-04-10

    申请号：US18483201

    申请日：2023-10-09

    Applicant: GM Global Technology Operations LLC

    Inventor： Daniel Philip Pothen ,  Paul Buchholz ,  Tejas R. Bhavsar ,  Rajesh K. Bhagirath

    IPC: H01M50/291 ,  B60L50/64 ,  H01M50/209 ,  H01M50/242 ,  H01M50/249

    Abstract: A battery assembly includes a first battery cell including a first surface and a first surface section. The first surface is opposite the second surface. A second battery cell includes a second surface and a second surface section. The second surface section is opposite of the second surface. A tunable spring member is provided between the first battery cell and the second battery cell. The tunable spring member includes a first spring surface facing the first surface section and a second spring surface facing the second surface. The tunable spring member includes a plurality of energy absorption zones disposed across the first spring surface and the second spring surface. A first portion of the plurality of energy absorption zones establish a first spring rate, and a second portion of the plurality of energy absorption zones establish a second spring rate that is distinct from the first spring rate.

    SINGLE-PIECE OVER-MOLDED COOLANT SUBSYSTEM
    9.
    发明申请
    SINGLE-PIECE OVER-MOLDED COOLANT SUBSYSTEM 有权

    公开(公告)号：US20240387895A1

    公开(公告)日：2024-11-21

    申请号：US18319029

    申请日：2023-05-17

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC.

    Inventor： Tejas R. Bhavsar ,  Mahesh A. Mummigatti

    IPC: H01M10/613 ,  H01M10/625 ,  H01M50/213

    Abstract: A multi-cell rechargeable energy storage system (RESS) includes a plurality of battery cells arranged in rows and a single-piece cooling subsystem configured to remove thermal energy from the plurality of battery cells. The cooling subsystem includes a cell holder constructed from an impact-resistant material defining a plurality of pockets, wherein each pocket is configured to accept and retain one of the plurality of battery cells. The cooling subsystem also includes a coolant header disposed within the cell holder and having a plurality of ribbon coolant lines arranged in parallel and configured to circulate a coolant between individual battery cells. In a cross-sectional view, each ribbon coolant line is arranged inside the cell holder and over-molded and encased by a thermal interface material (TIM). Adjacent ribbon coolant lines embrace one row of the battery cells. A method of constructing the single-piece cooling subsystem is also included.

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