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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：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：US12104682B2
公开(公告)日：2024-10-01
申请号：US17560577
申请日：2021-12-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chunhao J. Lee , Norman K. Bucknor , Dongxu Li , Chengwu Duan , Lei Hao
CPC classification number: F16H45/02 , B60K1/00 , B60K17/02 , B60K17/06 , F16H57/02 , F16H2045/0273 , F16H2057/02034
Abstract: Presented are torque converters (TC) with hydraulic systems for converter feed and clutch control, methods for making/operating such TC assemblies, and vehicles equipped with such TC assemblies. A TC assembly includes a housing that drivingly connects to an electric motor, and an output member that drivingly connects to a multi-gear transmission. Rotatable within the TC housing are a turbine attached to the TC output member and an impeller juxtaposed with the turbine. A lockup clutch disposed inside the TC housing, between the turbine and housing, is operable to lock the housing to the output member. A disconnect clutch disposed inside the housing, between the impeller and housing, is operable to lock the housing to the impeller. A pump is attached to the TC housing and drivingly connected to the motor for feeding fluid into the housing to increase pressure within the TC chamber and activate the lockup and disconnect clutches.
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公开(公告)号：US12036886B2
公开(公告)日：2024-07-16
申请号：US17469463
申请日：2021-09-08
Applicant: GM Global Technology Operations LLC
Inventor： Chandra S. Namuduri , Lei Hao , Samantha Gunter Miller , Chengwu Duan
CPC classification number: B60L53/62 , B60L53/20 , H02J7/007 , H02M3/158 , B60L53/16 , B60L2210/10 , H02J2207/20
Abstract: An electrical system can include a rechargeable energy storage system (RESS) and a direct current to direct current (DC-DC) converter. The DC-DC converter is connected to the RESS and configured to connect to a DC charging station. The DC-DC converter is configured to selectively connect the RESS to the DC charging station such that a charging current is selectively provided to the RESS during a recharging operation.
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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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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：US11780421B2
公开(公告)日：2023-10-10
申请号：US17562169
申请日：2021-12-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Norman K. Bucknor , Chunhao J. Lee , Dongxu Li , Lei Hao , Chengwu Duan
CPC classification number: B60W10/026 , B60W10/024 , B60W10/08 , B60W50/06 , F16H45/02 , B60W30/18027 , B60W2510/083 , B60W2510/1015 , B60W2520/04 , B60W2520/105 , B60W2540/10 , B60W2710/024 , B60W2710/081 , B60W2710/083 , F16H2045/0215
Abstract: A method for controlling an electric drive unit (EDU) having a motor-driven torque converter includes receiving a request signal indicative of a requested output torque of the EDU, and operating the motor at a target motor speed using the requested output torque. The target motor speed minimizes system losses while achieving the requested output torque. When the requested output torque remains below a calibrated threshold and a turbine speed is less than a corner speed of the motor, a torque converter clutch (TCC) transitions to or remains in a locked state. The controller commands the TCC to transition to an unlocked state to reach the target motor speed, thereby selectively enabling torque multiplication. A powertrain system includes a driven load and the EDU. A computer readable storage medium may include executable instructions for performing the method.
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公开(公告)号：US20230167887A1
公开(公告)日：2023-06-01
申请号：US17560577
申请日：2021-12-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chunhao J. Lee , Norman K. Bucknor , Dongxu Li , Chengwu Duan , Lei Hao
CPC classification number: F16H45/02 , F16H57/02 , B60K1/00 , B60K17/06 , B60K17/02 , F16H2057/02034 , F16H2045/0273
Abstract: Presented are torque converters (TC) with hydraulic systems for converter feed and clutch control, methods for making/operating such TC assemblies, and vehicles equipped with such TC assemblies. A TC assembly includes a housing that drivingly connects to an electric motor, and an output member that drivingly connects to a multi-gear transmission. Rotatable within the TC housing are a turbine attached to the TC output member and an impeller juxtaposed with the turbine. A lockup clutch disposed inside the TC housing, between the turbine and housing, is operable to lock the housing to the output member. A disconnect clutch disposed inside the housing, between the impeller and housing, is operable to lock the housing to the impeller. A pump is attached to the TC housing and drivingly connected to the motor for feeding fluid into the housing to increase pressure within the TC chamber and activate the lockup and disconnect clutches.
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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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