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公开(公告)号：US12261494B2
公开(公告)日：2025-03-25
申请号：US17987352
申请日：2022-11-15
Applicant: GM Global Technology Operations LLC
Inventor： Yusheng Zou , Jian Yao
IPC: H02K21/24 , H02K1/14 , H02K1/2793 , H02K3/28
Abstract: An axial flux electric motor includes a stator including a stator segment having a support frame formed with an opening defined by a continuous edge. A stator winding segment is arranged in the opening of the stator segment. The stator winding segment has an outer surface. A thermal interface material (TIM) is disposed between the outer surface of the stator winding segment and the continuous edge defining the opening in the support frame.
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公开(公告)号：US20240286525A1
公开(公告)日：2024-08-29
申请号：US18300842
申请日：2023-04-14
Applicant: GM Global Technology Operations LLC
Inventor： Zhenwen Hu , Jian Yao , Chengwu Duan , Yusheng Zou
IPC: B60L58/24 , B60K1/04 , B60L50/60 , H01M10/625 , H01M10/6566 , H01M10/658
CPC classification number: B60L58/24 , B60K1/04 , B60L50/66 , H01M10/625 , H01M10/6566 , H01M10/658 , B60K2001/005 , H01M2220/20
Abstract: A system for thermal management of a battery assembly includes a protective cover in thermal communication with the battery assembly and disposed at a location that is proximate to an external surface of the battery assembly, the protective cover including at least one moveable component. The system also includes an actuator device configured to move the at least one moveable component of the protective cover to establish an insulating air gap between a portion of the protective cover and the battery system, the insulating air gap causing an increase in a thermal resistance of the protective cover.
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公开(公告)号：US11971455B2
公开(公告)日：2024-04-30
申请号：US17858202
申请日：2022-07-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chengwu Duan , Jian Yao , Dewen Kong , Jingyuan Liu
IPC: G01R31/3842 , G01R31/392 , H01M10/48 , H02J7/00 , H01M4/02 , H01M4/505 , H01M4/525 , H01M4/58 , H01M10/0525
CPC classification number: G01R31/3842 , G01R31/392 , H01M10/48 , H02J7/0048 , H02J7/005 , H01M2004/028 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M10/0525
Abstract: A mixed chemistry battery is provided. The mixed chemistry battery includes a reference module having a first chemistry and a battery module having a second chemistry that is different that the first chemistry, the battery module is connected to the reference module in series. The mixed chemistry battery also includes a battery monitoring system configured to monitor an open circuit voltage of the reference module, an open circuit voltage of the battery module, and a current flow through the reference module and the battery module. The battery monitoring system is further configured to calculate a state-of-charge (SOC) and state-of-health (SOH) of the battery module based at least in part on a SOC of the reference module.
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公开(公告)号：US20240128806A1
公开(公告)日：2024-04-18
申请号：US17976029
申请日：2022-10-28
Applicant: GM Global Technology Operations LLC
Inventor： Jian Yao , Vincent Fedida , Chengwu Duan , Alan G. Holmes
Abstract: A stator core segment for an axial flux electric motor includes a first lamination step having a first length, a first width, and a first thickness, and a second lamination step having a second length, a second width, and a second thickness. At least one of the second length, the second width, and the second thickness is distinct from corresponding ones of the first length, the first width, and the first thickness.
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公开(公告)号：US11876406B2
公开(公告)日：2024-01-16
申请号：US17489552
申请日：2021-09-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chengwu Duan , Jian Yao , Alireza Fatemi
CPC classification number: H02K1/20 , H02K1/14 , H02K9/19 , H02K15/022 , H02K21/24
Abstract: A stator assembly for an axial flux motor includes a heat exchanger jacket configured to circulate a heat transfer liquid. A stator also includes a plurality of stator cores each having a conductive winding, an electrically insulating material disposed over at least a portion of the conductive wire winding, and a molded soft magnetic composite (SMC) material. The heat exchanger jacket is disposed circumferentially around at least a portion of a perimeter of the stator. Each stator core defines a peripheral surface configured to contact the heat exchanger jacket and at least a portion of the peripheral surface is defined by the molded soft magnetic composite (SMC) material. Methods of making a molded soft magnetic composite (SMC) material stator core are also provided.
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Patent Agency Ranking
公开(公告)号：US11863072B2
公开(公告)日：2024-01-02
申请号：US17549324
申请日：2021-12-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yusheng Zou , Lei Hao , Chengwu Duan , Jian Yao , Chandra S. Namuduri
CPC classification number: H02M3/1582 , B60L58/18 , H02J7/0013 , H02J7/0063 , B60L2210/12 , B60L2210/14 , H02J2207/20
Abstract: A power control system includes a battery system and a DC-DC converter with first, second, third, and fourth power switches. A second terminal of the first power switch is connected to a first terminal of the second power switch. A second terminal of the third power switch is connected to a first terminal of the fourth power switch. A first inductor includes a first terminal connected to the second terminal of the first power switch and the first terminal of the second power switch and a second terminal connected to the second terminal of the third power switch and the first terminal of the fourth power switch. A first bypass switch is connected in parallel to the first power switch. A second bypass switch is connected in parallel to the third power switch.
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公开(公告)号：US11689073B2
公开(公告)日：2023-06-27
申请号：US17401613
申请日：2021-08-13
Applicant: GM Global Technology Operations LLC
Inventor： Jian Yao , Chengwu Duan , Yusheng Zou
CPC classification number: H02K1/2766 , H02K15/03 , H02K1/148
Abstract: An axial flux electric motor for an automobile includes a stator assembly, and a rotor assembly, the rotor assembly including a plurality of lamination blocks arranged in an annular pattern, a plurality of conductive wedges, one conductive wedge being positioned between each adjacent pair of lamination blocks, the plurality of lamination blocks and the plurality of conductive wedges defining a rotor core disk having an inner diameter and outer diameter and opposing axial faces, and a plurality of permanent magnets attached to one of the opposing axial faces of the rotor core disk.
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公开(公告)号：US20230167886A1
公开(公告)日：2023-06-01
申请号：US17560564
申请日：2021-12-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chengwu Duan , Jian Yao , Lei Hao , Dongxu Li , Chunhao J. Lee , Norman K. Bucknor
CPC classification number: F16H45/02 , H02K7/108 , H02K7/1823 , H02K1/27 , H02K1/16 , F16H2045/005
Abstract: An electrified drivetrain system that maximizes power density, is readily packaged, and improves drivability is described. It includes a propulsion system having an axial-flux rotating electric machine, a torque converter having a selectable one-way clutch, and an output member that is couplable to a drivetrain. The axial-flux rotating electric machine include a first rotor coaxially arranged with a first electric stator. The torque converter includes a fluidic stator, a pump, a turbine and a torque converter clutch. The axial-flux rotating electric machine is arranged coaxially with the torque converter. The first rotor of the axial-flux rotating electric machine is coupled to the pump of the torque converter, and the turbine of the torque converter is rotatably coupled to the output member.
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公开(公告)号：US11639748B1
公开(公告)日：2023-05-02
申请号：US17560552
申请日：2021-12-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chengwu Duan , Dongxu Li , Jian Yao , Chunhao J. Lee , Norman K. Bucknor
Abstract: An electrified drivetrain system that improves drivability is described. It includes a propulsion system having a rotary electric machine including a rotatable shaft, a torque converter including a fluidic stator, a pump, a turbine and a normally-closed torque converter clutch; a selectable one-way clutch coupled to the fluidic stator; and an output member. The rotatable shaft is coupled to the pump of the torque converter, and the turbine of the torque converter is coupled to the output member.
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公开(公告)号：US20230048820A1
公开(公告)日：2023-02-16
申请号：US17401613
申请日：2021-08-13
Applicant: GM Global Technology Operations LLC
Inventor： Jian Yao , Chengwu Duan , Yusheng Zou
Abstract: An axial flux electric motor for an automobile includes a stator assembly, and a rotor assembly, the rotor assembly including a plurality of lamination blocks arranged in an annular pattern, a plurality of conductive wedges, one conductive wedge being positioned between each adjacent pair of lamination blocks, the plurality of lamination blocks and the plurality of conductive wedges defining a rotor core disk having an inner diameter and outer diameter and opposing axial faces, and a plurality of permanent magnets attached to one of the opposing axial faces of the rotor core disk.
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