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公开(公告)号:US20230047862A1
公开(公告)日:2023-02-16
申请号:US17401663
申请日:2021-08-13
Applicant: GM Global Technology Operations LLC
Inventor: Jian Yao , Chengwu Duan , Yusheng Zou
Abstract: A stator core assembly for an axial flux electric motor for an automobile includes a cylindrical outer case that defines a central axis, and a plurality of segmented core sections spaced circumferentially around the central axis within the outer case, each of the segmented core sections including a lamination stack and a sleeve, the lamination stack being positioned within the sleeve and the sleeve being formed from a soft magnetic composite material, the sleeve of each of the plurality of segmented core sections including a first axial end having a pole shoe formed thereon and a second axial end having a pole shoe formed thereon, the pole shoes formed on the first and second axial ends of the sleeve of each of the plurality of segmented core sections including a radially outward surface having an arcuate shape that corresponds to and contacts the radially inward surface of the outer case.
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公开(公告)号:US11025116B2
公开(公告)日:2021-06-01
申请号:US16426797
申请日:2019-05-30
Applicant: GM Global Technology Operations LLC
Inventor: Jian Yao , Yusheng Zou , Chengwu Duan , Zhen Gao , Lei Hao , Alireza Fatemi
IPC: H02K1/32 , H02K21/24 , H02K9/197 , H02K16/02 , H02K9/19 , H02K16/00 , H02K5/20 , H02K1/20 , H02K1/27
Abstract: A fluid-cooled axial flux motor having a stator, a rotor disposed adjacent to the stator, and a rotor shaft rotationally fixed onto the rotor. The rotor shaft includes axial coolant passageway having an inlet and opposite outlet. The rotor includes coolant passageways extending radially from rotor shaft. The rotor coolant passageways include an inlet in fluid communication with the outlet of the axial coolant passageway and an outlet. The fluid-cooled axial flux motor further includes a coolant distribution header having an inlet in fluid communication with the outlet of the rotor coolant passageway, a coolant collection header having an inlet in fluid communication with the outlet of the coolant distribution header, and a collection header outlet. The outlet of the coolant distribution header is disposed above the stator and the inlet of the coolant collection header is disposed below the stator with respect to the direction of gravity.
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公开(公告)号:US10438422B1
公开(公告)日:2019-10-08
申请号:US15943330
申请日:2018-04-02
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Zhen Gao , Chengwu Duan , Yusheng Zou
Abstract: Systems and methods are provided for controlling a shared machine. The shared machine includes a mechanism that allows for an operational function of the shared machine to be controlled via a control system. A server system can process location information that indicates a location of the shared machine to determine whether the location corresponds to a non-permitted area. When the location corresponds to a non-permitted area, a command is generated to automatically place the mechanism in a first state so that the operational function of the shared machine is prevented from being enabled while the shared machine remains in the non-permitted area.
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公开(公告)号:US12244177B2
公开(公告)日:2025-03-04
申请号:US17744865
申请日:2022-05-16
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: SeungHwan Keum , Jian Yao , Yusheng Zou
IPC: H02K1/20 , H02K1/2798 , H02K5/20 , H02K16/02 , H02K21/24
Abstract: An axial flux electric machine includes a casing, stator cores, windings, and fins. The casing has a hollow cylindrical shape with an inner radial surface and an outer radial surface. The stator cores are spaced circumferentially along the inner radial surface of the casing. The windings are wrapped around the stator cores. The fins project from the inner radial surface of the casing to spaces between the windings.
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公开(公告)号:US20240136903A1
公开(公告)日:2024-04-25
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
CPC classification number: H02K21/24 , H02K1/146 , 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:US11830668B2
公开(公告)日:2023-11-28
申请号:US17724618
申请日:2022-04-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Jian Yao , Denghao Fan , Alan G. Holmes , Yusheng Zou , Thomas W. Nehl
CPC classification number: H01F41/0286 , H02K15/03 , Y10T29/49075
Abstract: A method of manufacturing a permanent magnet for a rotor of an axial flux electric machine is described herein. The method includes forming multiple permanent magnet (PM) pieces to have the same shape. Each of the PM pieces has an inner radial surface, an outer radial surface, and a pair of side surfaces extending between the inner and outer radial surfaces. The method further includes attaching at least one of the side surfaces of each of the PM pieces to one of the side surfaces of another one of the PM pieces to form partitions configured to extend in a radial direction of the rotor.
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公开(公告)号:US11621621B2
公开(公告)日:2023-04-04
申请号:US17081390
申请日:2020-10-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Jian Yao , Chengwu Duan , Yusheng Zou , Alireza Fatemi
IPC: H02K21/24 , H02K1/2793 , H02K1/14
Abstract: An axial flux motor includes: a stator having a first side and a second side opposite the first side, the stator including: N stator core components on the first side, where N is an integer greater than two; and pole shoes attached to radial sides of the N stator core components, N slot openings between adjacent ones of the pole shoes, where each of the N slot openings extends in at least one direction non-radially on the first side; and a rotor including a third side and M permanent magnets on the third side, where the first side is parallel to the third side, and where M is an integer greater than two.
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公开(公告)号:US11381123B2
公开(公告)日:2022-07-05
申请号:US16785106
申请日:2020-02-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Jian Yao , Mingyuan Zhang , Chengwu Duan , Yusheng Zou
Abstract: The present disclosure provides hybrid stator core components for an axial flux motor stator and methods for making the same. The hybrid stator core component includes a molded soft magnetic composite material and a laminated component. In one variation, a laminated insert comprising a plurality of insulated layers is non-releasably seated within a molded soft magnetic composite material. In another variation, a hybrid stator core component has a molded soft magnetic composite core and a laminated shell comprising a plurality of layers disposed around at least a portion of the molded soft magnetic composite core.
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公开(公告)号:US20200346658A1
公开(公告)日:2020-11-05
申请号:US16447086
申请日:2019-06-20
Applicant: GM Global Technology Operations LLC
Inventor: Zhiqiang Deng , Yusheng Zou , Jiang L. Du , Marco Gatti
Abstract: A distracted driving elimination system includes an image capture device within a passenger compartment of an automobile capturing images of a first hand and a second hand of a vehicle operator and a steering wheel. An analysis unit has a geometry and visual characteristics of multiple predetermined items saved in a memory. The analysis unit receives the images and compares the images to the predetermined items saved in the memory to identify if any one of the first hand or the second hand of the vehicle operator is not in direct contact with the steering and is in direct contact with one of the predetermined items thereby initiating a distracted driving event. A distracted driving signal is generated when the distracted driving event is initiated. An indication system generates an indication when the distracted driving signal is forwarded, the indication alerting the vehicle operator of the distracted driving event.
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公开(公告)号:US20200312056A1
公开(公告)日:2020-10-01
申请号:US16367827
申请日:2019-03-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Yue-Yun Wang , Ibrahim Haskara , David Sun , Yusheng Zou , Shiming Duan , Chi-kuan Kao , Xiangxing Lu
Abstract: A system for monitoring operation of a vehicle includes a processing device including an interface configured to receive measurement data from sensing devices configured to measure parameters of a vehicle system. The processing device is configured to receive measurement data from each of the plurality of sensing devices, and in response to detection of a malfunction in the vehicle, input at least a subset of the measurement data to a machine learning classifier associated with a vehicle subsystem, the classifier configured to define a class associated with normal operation of the vehicle subsystem. The processing device is also configured to determine whether the subset of the measurement data belongs to the class, and based on at least a selected amount of the subset of the measurement data being outside of the class, output a fault indication, the fault indication identifying the vehicle subsystem as having a contribution to the malfunction.
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