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公开(公告)号：US11171545B2
公开(公告)日：2021-11-09
申请号：US16662862
申请日：2019-10-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anthony M. Coppola , Alireza Fatemi , Bradley A. Newcomb , Derek F. Lahr , Sean R. Wagner
Abstract: A stator assembly for an electric motor includes a laminate steel core arranged on an axis. The stator assembly also includes a fluid inlet and a fluid outlet. The stator assembly additionally includes a stator housing arranged on the axis concentrically with respect to the laminate steel core. The stator housing has a conduit fluidly connected to each of the fluid inlet and the fluid outlet and configured to circulate fluid around the laminate steel core. The stator assembly also includes a structural skeleton embedded in the stator housing. The structural skeleton is thereby configured to reinforce the stator housing. An electric motor employing the above-described stator assembly is also contemplated.
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公开(公告)号：US20210126511A1
公开(公告)日：2021-04-29
申请号：US16662862
申请日：2019-10-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anthony M. Coppola , Alireza Fatemi , Bradley A. Newcomb , Derek F. Lahr , Sean R. Wagner
Abstract: A stator assembly for an electric motor includes a laminate steel core arranged on an axis. The stator assembly also includes a fluid inlet and a fluid outlet. The stator assembly additionally includes a stator housing arranged on the axis concentrically with respect to the laminate steel core. The stator housing has a conduit fluidly connected to each of the fluid inlet and the fluid outlet and configured to circulate fluid around the laminate steel core. The stator assembly also includes a structural skeleton embedded in the stator housing. The structural skeleton is thereby configured to reinforce the stator housing. An electric motor employing the above-described stator assembly is also contemplated.
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公开(公告)号：US20210031309A1
公开(公告)日：2021-02-04
申请号：US16525738
申请日：2019-07-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Megan E. McGovern , Teresa J. Rinker , Ryan C. Sekol , Sean R. Wagner , Ronald M. Lesperance , James G. Schroth , Michael J. Bland , Diana M. Wegner
Abstract: A computer software product adapted for use in a weld inspection system is executed by a processor and is stored in an electronic storage medium of the weld inspection system adapted to facilitate the inspection of a weld of a work product. The computer software product includes a first module and a combination module. The first module is configured to transform first and second raw thermal images, associated with respective first and second heat pulses of at least a portion of the work product having the weld, into respective first and second binary images. The combination module is configured to transform the first and second binary images into a combined binary image for the reduction of noise.
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公开(公告)号：US11668759B2
公开(公告)日：2023-06-06
申请号：US17350681
申请日：2021-06-17
Applicant: GM Global Technology Operations LLC
Inventor： James R. Salvador , Debejyo Chakraborty , Ryan Curtis Sekol , Thomas A. Yersak , Sean R. Wagner , Charles W. Wampler , Ronald M. Lesperance , Raffaello Ardanese , Thanh-Son Dao , Dmitriy Bruder
IPC: G01R31/396 , H01M10/42 , G01N30/02 , G01F22/00 , G01N33/00 , G01R31/382
CPC classification number: G01R31/396 , G01F22/00 , G01N30/02 , G01N33/0027 , G01R31/382 , H01M10/4285 , G01N2030/025
Abstract: A method of analyzing the quality of a battery cell includes performing a high-throughput quality check on the battery cell with a quality control system, assessing a quality score to the battery cell, with quality score identifying the battery cell as low-quality or high-quality, and performing a comprehensive quality check on the battery cell if identified as low-quality. The method further includes assessing an enhanced quality score to the battery cell superseding the quality score of the quality control system identifying the battery cell as confirmed low-quality or confirmed high-quality and providing revised production instructions for manufacturing successive battery cells if confirmed low-quality.
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公开(公告)号：US11278990B2
公开(公告)日：2022-03-22
申请号：US16525738
申请日：2019-07-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Megan E. McGovern , Teresa J. Rinker , Ryan C. Sekol , Sean R. Wagner , Ronald M. Lesperance , James G. Schroth , Michael J. Bland , Diana M. Wegner
Abstract: A computer software product adapted for use in a weld inspection system is executed by a processor and is stored in an electronic storage medium of the weld inspection system adapted to facilitate the inspection of a weld of a work product. The computer software product includes a first module and a combination module. The first module is configured to transform first and second raw thermal images, associated with respective first and second heat pulses of at least a portion of the work product having the weld, into respective first and second binary images. The combination module is configured to transform the first and second binary images into a combined binary image for the reduction of noise.
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Patent Agency Ranking
公开(公告)号：US20200020907A1
公开(公告)日：2020-01-16
申请号：US16033891
申请日：2018-07-12
Applicant: GM Global Technology Operations LLC
Inventor： Hongliang Wang , Brian J. Koch , Michael P. Balogh , Sean R. Wagner
IPC: H01M2/14 , H01M2/16 , H01M10/0525 , B23K26/38
Abstract: A method of forming a separator for a lithium-ion battery includes arranging a polymer film in contact with a sacrificial layer to form a cutting stack. The method includes disposing the cutting stack between a first vitreous substrate and a second vitreous substrate. The method includes applying an infrared laser to the cutting stack through the first vitreous substrate to generate heat at the sacrificial layer. The method also includes transferring heat from the sacrificial layer to the polymer film to thereby cut out a portion of the polymer film and form the separator. A method of cutting a polymer film and a cutting system are also explained.
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公开(公告)号：US11575299B2
公开(公告)日：2023-02-07
申请号：US16736203
申请日：2020-01-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Derek F. Lahr , Alireza Fatemi , Anthony M. Coppola , Sean R. Wagner
Abstract: A method for constructing a rotor assembly for use with a rotary electric machine includes forming annular rotor laminations from metal blanks. Each lamination has a radial axis and an outer diameter surface. Multiple magnet web regions are defined in proximity to the outer diameter surface. Each web regions includes asymmetrical openings defined by a radially-extending strut and arcuate peripheral bridges. The method includes coaxially stacking the laminations into a rotor stack, including positioning every other lamination a predetermined angular distance with to unmask the bridges and/or struts and mask remaining surface area of the laminations. The rotor stack is subjected to a heat-treating process to harden only the unmasked bridges and/or struts. The method includes connecting a rotor shaft to the stack to construct the rotor assembly, with the web regions corresponding to a respective rotor magnetic pole.
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公开(公告)号：US11006053B2
公开(公告)日：2021-05-11
申请号：US16525731
申请日：2019-07-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Megan E. McGovern , Teresa J. Rinker , Sean R. Wagner , Ryan C. Sekol , James G. Schroth , Michael J. Bland
IPC: H04N5/33 , G01N21/95 , G01N21/3563
Abstract: A weld inspection system is adapted to inspect a weld of a work product via thermographic technology. The weld inspection system includes a heat source assembly, a thermal imaging camera, and a controller. The heat source assembly is adapted to sequentially direct a plurality of heat pulses upon the work product from varying perspectives and within a pre-determined time period. Thea thermal imaging camera is configured to thermally image the weld over the pre-determined time period and collect thermal imaging data of heat dissipation from the work product. The thermal imaging data is associated with the weld and the plurality of heat pulses. The controller is configured to control the heat source assembly and the thermal imaging camera. The controller includes a processor configured to receive and transform the thermal imaging data into a binary image for evaluation of the weld.
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公开(公告)号：US10574122B2
公开(公告)日：2020-02-25
申请号：US15404433
申请日：2017-01-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Thomas A. Perry , James G. Schroth , Sean R. Wagner
IPC: H02K15/02 , H02K15/03 , C23C8/26 , C23C8/50 , C23C8/38 , C21D7/06 , C21D9/00 , C21D6/00 , H02K1/27 , C23C8/32
Abstract: A method of forming a rotor includes isolating a bridge area of an electrical steel lamination. The bridge area is disposed between a first portion of the electrical steel lamination and a second portion of the electrical steel lamination that is adjacent to the first portion. Each of the first portion, the second portion, and the bridge area has an initial hardness, and the electrical steel lamination has an initial magnetic permeability. After isolating, the method includes hardening only the bridge area so that the bridge area has a treated hardness that is greater than the initial hardness. Concurrent to hardening, the method includes decreasing the initial magnetic permeability at only the bridge area.
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公开(公告)号：US20210211025A1
公开(公告)日：2021-07-08
申请号：US16736203
申请日：2020-01-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Derek F. Lahr , Alireza Fatemi , Anthony M. Coppola , Sean R. Wagner
Abstract: A method for constructing a rotor assembly for use with a rotary electric machine includes forming annular rotor laminations from metal blanks. Each lamination has a radial axis and an outer diameter surface. Multiple magnet web regions are defined in proximity to the outer diameter surface. Each web regions includes asymmetrical openings defined by a radially-extending strut and arcuate peripheral bridges. The method includes coaxially stacking the laminations into a rotor stack, including positioning every other lamination a predetermined angular distance with to unmask the bridges and/or struts and mask remaining surface area of the laminations. The rotor stack is subjected to a heat-treating process to harden only the unmasked bridges and/or struts. The method includes connecting a rotor shaft to the stack to construct the rotor assembly, with the web regions corresponding to a respective rotor magnetic pole.
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