公开(公告)号：US11688214B1

公开(公告)日：2023-06-27

申请号：US17592901

申请日：2022-02-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Venkateshwar R. Aitharaju ,  Selina Xinyue Zhao ,  Andrew J. Galant ,  Dorel M. Sala ,  William R. Rodgers ,  Terrence Wathen

IPC: G07C5/08 ,  G01J5/04 ,  G01J5/12 ,  G01H11/08 ,  H02J50/20 ,  G06K19/07 ,  H02J50/00 ,  H02N2/18 ,  H02J7/34

CPC classification number: G07C5/0808 ,  G01H11/08 ,  G01J5/041 ,  G01J5/12 ,  G06K19/0704 ,  H02J7/345 ,  H02J50/001 ,  H02J50/20 ,  H02N2/186

Abstract: A composite panel for a vehicle includes a plurality of layers bonded together by resin. A sensing assembly is arranged between at least two of the plurality of layers. The sensing assembly includes at least one of a piezoelectric layer to sense vibration of the composite panel when installed on the vehicle and a thermopile configured to sense changes in temperature of the composite panel when installed on the vehicle. The sensing assembly further includes a transmitter configured to transmit data to the vehicle based on an output of the at least one of the piezoelectric layer and the thermopile.

公开(公告)号：US12275204B2

公开(公告)日：2025-04-15

申请号：US18322178

申请日：2023-05-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  Coats American Inc

Inventor： Venkateshwar R. Aitharaju ,  Selina Xinyue Zhao ,  George Han ,  Colin Rowbottom

IPC: B29C70/54 ,  B29C70/46

Abstract: A method for fabricating a composite panel comprising stitching a plurality of first continuous reinforcing fibers in N first zones and M second zones of a backing substrate of a preform. The N first zones are arranged near C corners of the composite panel, where C is an integer. The plurality of first continuous reinforcing fibers in the N first zones is arranged radially relative to the C corners. At least one of a fiber density of the plurality of first continuous reinforcing fibers in the N first zones that is less than a fiber density of the plurality of first continuous reinforcing fibers in the M second zones, and a stitch density of the plurality of first continuous reinforcing fibers in the N first zones that is less than a stitch density of the plurality of first continuous reinforcing fibers in the M second zones.

公开(公告)号：US20230158712A1

公开(公告)日：2023-05-25

申请号：US17531318

申请日：2021-11-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： William R. Rodgers ,  Terrence Wathen ,  Selina Xinyue Zhao ,  Venkateshwar R. Aitharaju

IPC: B29B11/16 ,  B29C70/22

CPC classification number: B29B11/16 ,  B29C70/222

Abstract: The present application discloses a method of making a preform for use in manufacturing a component made of a composite material. The method includes stitching fibers onto a film to form a fiber bed in a two-dimensional shape, removing the film from the fiber bed, and adjusting the fiber bed into a three-dimensional shape to form the preform.

公开(公告)号：US20240391187A1

公开(公告)日：2024-11-28

申请号：US18322178

申请日：2023-05-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  Coats American Inc

Inventor： Venkateshwar R. AITHARAJU ,  Selina Xinyue Zhao ,  George Han ,  Colin Rowbottom

IPC: B29C70/54 ,  B29C70/46

Abstract: A method for fabricating a composite panel comprising stitching a plurality of first continuous reinforcing fibers in N first zones and M second zones of a backing substrate of a preform. The N first zones are arranged near C corners of the composite panel, where C is an integer. The plurality of first continuous reinforcing fibers in the N first zones is arranged radially relative to the C corners. At least one of a fiber density of the plurality of first continuous reinforcing fibers in the N first zones that is less than a fiber density of the plurality of first continuous reinforcing fibers in the M second zones, and a stitch density of the plurality of first continuous reinforcing fibers in the N first zones that is less than a stitch density of the plurality of first continuous reinforcing fibers in the M second zones.

公开(公告)号：US12046765B2

公开(公告)日：2024-07-23

申请号：US17495731

申请日：2021-10-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Selina Xinyue Zhao ,  Venkateshwar R. Aitharaju ,  Bhavesh Shah

IPC: H01M10/00 ,  B29C70/22 ,  H01M50/229 ,  H01M50/231 ,  H01M50/24 ,  B29C43/20 ,  B29C70/48 ,  B29K105/08 ,  B29L31/34

CPC classification number: H01M50/24 ,  B29C70/226 ,  H01M50/229 ,  H01M50/231 ,  B29C43/203 ,  B29C70/48 ,  B29K2105/089 ,  B29L2031/3468

Abstract: A battery tray is provided and includes a first component and a second component. The first component includes a first set of walls, where the first set of walls includes a first stitched fabric, and where the first stitched fabric includes first metal coated fibers. The second component includes a second set of walls, where: the second set of walls includes a second stitched fabric; the second stitched fabric includes second metal coated fibers; and the second component is attached to the first component to form the battery tray, which is configured to hold a battery pack of a vehicle. The first metal coated fibers and the second metal coated fibers provide an electromagnetic shield surrounding the battery pack.

公开(公告)号：US11657494B1

公开(公告)日：2023-05-23

申请号：US17576176

申请日：2022-01-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Selina Xinyue Zhao ,  Ratandeep Singh Kukreja ,  Xiaosong Huang

IPC: G06T7/00 ,  G06V10/22 ,  G06V10/60 ,  H01M10/42 ,  H01M50/105 ,  H04N23/56 ,  H01M50/533 ,  H04N23/74

CPC classification number: G06T7/0004 ,  G06V10/22 ,  G06V10/60 ,  H01M10/4285 ,  H01M50/105 ,  H01M50/533 ,  H04N23/56 ,  H04N23/74 ,  G06T2207/10048 ,  G06T2207/30108

Abstract: A flash thermography device is configured to apply a flash of light to a target area on a surface of the battery cell. An imaging device is configured to capture an image of the target area subsequent to the flash of light being applied to the surface of the battery cell. A defect detection control module is configured to receive the image captured by the imaging device, analyze the image to determine whether a defect is present in the battery cell, and selectively generate and output an indication of whether the defect is present based on the analysis of the image.

公开(公告)号：US20250135734A1

公开(公告)日：2025-05-01

申请号：US18495227

申请日：2023-10-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  Coats American Inc

Inventor： Selina Xinyue Zhao ,  Venkateshwar R. Aitharaju ,  George Han ,  Colin Rowbottom

IPC: B29C70/54 ,  B29C70/48 ,  B29K105/08 ,  B29K307/04 ,  G01V3/02

Abstract: A system and method for molding a fiber reinforced composite part are disclosed. The system includes a mold with electrical contacts that make electrical contact with at least one monitoring circuit incorporated in a fiber preform disposed in the mold so that the resistance of the monitoring circuit can be monitored as resin fills the mold cavity and envelopes the preform. The method includes monitoring the resistance of at least one monitoring circuit incorporated into a fiber preform disposed in a mold to determine the location of the resin flow front as resin is injected into the mold and surrounds the fiber preform.

公开(公告)号：US20250115022A1

公开(公告)日：2025-04-10

申请号：US18483631

申请日：2023-10-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  SEKISUI Aerospace, Inc.

Inventor： Mary GILLIAM ,  David A. Okonski ,  Selina Xinyue Zhao ,  Blair E. Carlson ,  Scott James ,  Daniel Miranda

IPC: B32B5/02 ,  B32B7/12 ,  B32B9/00 ,  B32B9/04 ,  B32B19/06 ,  H01M50/227 ,  H01M50/229 ,  H01M50/231 ,  H01M50/24

Abstract: A multi-layer and multi-functional composite structure includes a structural reinforcing portion configured to provide structural support. The structural reinforcing portion includes reinforcing fibers consolidated in a thermoplastic resin. A protecting portion is arranged on one side of the structural reinforcing portion and configured to provide at least one of thermal blocking and fire resistance. A shielding portion is arranged on an opposite side of the structural reinforcing portion and configured to shield electromagnetic interference (EMI).

公开(公告)号：US12064902B2

公开(公告)日：2024-08-20

申请号：US17531318

申请日：2021-11-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： William R. Rodgers ,  Terrence Wathen ,  Selina Xinyue Zhao ,  Venkateshwar R. Aitharaju

IPC: B29B11/16 ,  B29C70/22

CPC classification number: B29B11/16 ,  B29C70/222

Abstract: The present application discloses a method of making a preform for use in manufacturing a component made of a composite material. The method includes stitching fibers onto a film to form a fiber bed in a two-dimensional shape, removing the film from the fiber bed, and adjusting the fiber bed into a three-dimensional shape to form the preform.