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公开(公告)号：US20250087785A1
公开(公告)日：2025-03-13
申请号：US18500467
申请日：2023-11-02
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Zhenwen Hu , Xiaoling Chen , Derek F. Lahr , Hui-Ping Wang , Chengwu Duan , Jian Yao , Lu Huang
IPC: H01M10/6556 , B60L50/64 , H01M10/613 , H01M10/625 , H01M10/6567
Abstract: A battery pack includes a first header having a first conduit and a second header having a second conduit. The battery pack also includes an energy storage system having energy storage cells arranged between the first header and the second header. A coolant plate assembly is arranged between the first header and the second header and abuts the plurality of energy storage cells. The coolant plate assembly includes a coolant channel having a first end fluidically connected to the first conduit, a second end fluidically connected to the second conduit, and an intermediate portion defining a flow path. The coolant plate assembly also includes a first planar section having a first surface facing the energy storage cells and a second surface having protrusions extending into the coolant channel.
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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：US20240391354A1
公开(公告)日：2024-11-28
申请号：US18363867
申请日：2023-08-02
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Zhenwen Hu , Chengwu Duan , Jian Yao , Yue-Yun Wang , Chandra S. Namuduri
Abstract: Embodiments include balancing modules during charging of a mixed chemistry battery pack having a first battery module connected in series to a second battery module. Aspects include monitoring a first state-of-charge (SOC) of the first battery module having a first battery chemistry and monitoring a second SOC of the second battery module having a second battery chemistry. Aspects also include selectively activating one of a first bypass switch and a first activation switch of the first battery module based on the first SOC and the second SOC and selectively activating one of a second bypass switch and a second activation switch of the second battery module based on the first SOC and the second SOC. The activation of the first bypass switch prevents the first battery module from charging and activation of the second bypass switch prevents the second battery module from charging.
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公开(公告)号：US20240178478A1
公开(公告)日：2024-05-30
申请号：US18159710
申请日：2023-01-26
Applicant: GM Global Technology Operations LLC
Inventor： Zhen Gao , Jian Yao , Chengwu Duan
IPC: H01M10/6556 , H01M10/613 , H01M10/625 , H01M10/63
CPC classification number: H01M10/6556 , H01M10/613 , H01M10/625 , H01M10/63 , H01M2220/20
Abstract: A battery assembly including a housing having a first coolant port and a second coolant port includes a valve assembly fluidically connected to one of the first coolant port and the second coolant port, a pump fluidically connected to the valve assembly and the battery assembly, and a coolant controller operatively connected to the pump and the valve assembly. The coolant controller is operable to control the valve assembly to pass a flow of coolant into the one of the first coolant port and the second coolant port for a first time period and to pass the flow of coolant into the other of the first coolant port and the second coolant port for a second time period.
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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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Patent Agency Ranking
公开(公告)号：US20230387757A1
公开(公告)日：2023-11-30
申请号：US17866910
申请日：2022-07-18
Applicant: GM Global Technology Operations LLC
Inventor： Jian Yao , Chengwu Duan , SeungHwan Keum , Denghao Fan
Abstract: An electric machine includes a housing having an inner surface; and a stator including a stator core mounted in the housing. The stator core includes a plurality of stator windings, a thermal bridge extends between the stator core and the inner surface of the housing. The thermal bridge is formed from a non-magnetic material and includes a plurality of individual thermal bridge elements.
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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：US20210170869A1
公开(公告)日：2021-06-10
申请号：US16707313
申请日：2019-12-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chengwu Duan , Mohammad Hotait , Jian Yao
Abstract: A speed reduction assembly for an electric vehicle includes an electric machine configured to operate as a motor and as a generator. The electric machine includes an output shaft that is rotatable about a longitudinal axis at an output speed. The assembly also includes an output member coupled to the output shaft and rotatable about the longitudinal axis at a reduced speed. In addition, the assembly includes a pericyclic apparatus coupled to the output shaft and the output member to reduce the output speed of the output shaft to the reduced speed of the output member. A vehicle may include the speed reduction assembly in certain configurations. The vehicle includes a battery module and the electric machine is in electrical communication with the battery module to recharge the battery module when the electric machine operates as the generator.
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