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公开(公告)号：US12074505B2
公开(公告)日：2024-08-27
申请号：US17305642
申请日：2021-07-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： SeungHwan Keum , Jun-mo Kang , Insu Chang , Young J. Kim
CPC classification number: H02K9/19 , H02K7/10 , H02K2209/00
Abstract: In various embodiments, systems, apparatuses and methods are provided to distribute coolant to an electric motor. The apparatus includes a pan configured with a set of holes for coolant flow; an assembly including a set of bar linkages, a set of discs, and a single actuator motor wherein the assembly is attached to the pan wherein the single actuator motor is linked via bar linkages to discs that enable configuring a planar angle of the pan to obtain an optimum hole location of holes for coolant flow; and in response to external disturbances to the apparatus that redirect the coolant flow from the target region of the electric motor, the single actuator motor is controlled by an algorithm to change the planar angle of the pan to obtain the optimum hole location to direct coolant flow to the target region of the electric motor.
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2.发明公开公开(公告)号：US20240145858A1
公开(公告)日：2024-05-02
申请号：US17973933
申请日：2022-10-26
Applicant: GM Global Technology Operations LLC
Inventor： SeungHwan Keum , Ronald O. Grover, JR. , Jian Gao , Xiaofeng Yang
IPC: H01M50/375 , B60L50/64 , H01M10/48 , H01M50/249
CPC classification number: H01M50/375 , B60L50/64 , H01M10/486 , H01M50/249 , B60L58/24 , H01M2220/20
Abstract: A rechargeable energy storage system (RES S) including a thermal runaway propagation (TRP) mitigation system includes a housing having at least one outlet, a plurality of energy storage cells arranged in the housing, and at least one duct extending along the plurality of energy storage cells. The at least one duct is fluidically connected to the at least one outlet. A gas delivery system including a gas generation system is operable to deliver an amount of inert gas into the housing to purge gases from one or more of the plurality of energy storage cells through the at least one outlet.
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公开(公告)号：US11728535B2
公开(公告)日：2023-08-15
申请号：US17375753
申请日：2021-07-14
Applicant: GM Global Technology Operations LLC
Inventor： Farzad Samie , Anthony Michael Coppola , Jian Gao , Derek Frei Lahr , Velmurugan Ayyanar , SeungHwan Keum
IPC: H01M10/6556 , H05K7/20 , H01M10/0525 , H01M10/613 , H01M10/653 , H01M50/204 , H01M50/249 , H01M10/625
CPC classification number: H01M10/6556 , H01M10/0525 , H01M10/613 , H01M10/625 , H01M10/653 , H01M50/204 , H01M50/249 , H05K7/20254 , H01M2220/20
Abstract: According to several aspects of the present disclosure, a battery module housing cooling assembly is disclosed. The battery module housing cooling assembly can include an endwall including a first polymer plate and a second polymer plate that define a slot therebetween. At least one of the first polymer plate or the second polymer plate define a channel therein that is configured to receive a coolant fluid, and the slot is configured to receive an electrical connector. The battery module housing cooling assembly can also include a cooling plate defining a first connection port and a second connection port, wherein the first connection port and a second connection port are configured to provide the coolant fluid to the channel.
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4.发明申请公开(公告)号：US20230047629A1
公开(公告)日：2023-02-16
申请号：US17398095
申请日：2021-08-10
Applicant: GM Global Technology Operations LLC
Inventor： Wonhee Michael Kim , SeungHwan Keum
Abstract: A rotor for an electric motor includes a rotor core defining a first face, a second face, and an opening extending from the first face to the second face. The rotor also includes an output shaft received by the opening of the rotor core and a valve disposed within a passageway of the output shaft. The valve controls a flowrate of the coolant and is actuated into a fully opened position at a maximum operating temperature of the rotor. The valve includes a stem having a first end portion and a second end portion, a plug disposed at the first end portion of the stem, a valve seat disposed opposite to the plug, and a shape memory alloy actuator that expands to urge the stem of the valve and the plug away from the valve seat and into the fully opened position at the maximum operating temperature.
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公开(公告)号：US20200182217A1
公开(公告)日：2020-06-11
申请号：US16214408
申请日：2018-12-10
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： SeungHwan Keum , Cherian A. Idicheria , Paul M. Najt
Abstract: An internal combustion engine includes a combustion chamber formed by cooperation of a cylinder bore formed in a cylinder block, a cylinder head and a piston. A combustion ignition device is disposed in the combustion chamber and includes a nozzle defining a pre-chamber, a barrier discharge plasma igniter, including a tip portion disposed in the pre-chamber and a plurality of apertures disposed in the nozzle. The pre-chamber is in fluidic communication with the combustion chamber via the plurality of apertures. A controller is in communication with the engine and the barrier discharge plasma igniter.
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Patent Agency Ranking
公开(公告)号：US20250088054A1
公开(公告)日：2025-03-13
申请号：US18609135
申请日：2024-03-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jian Yao , Chengwu Duan , Vincent Fedida , SeungHwan Keum , Alan G. Holmes
Abstract: A cooled axial flux electric motor includes a rotationally-fixed stator defining a rotational axis and having a plurality of conductive stator magnetic poles arranged radially about the axis. The motor also includes a rotor spaced axially from one side from the stator and rotatably mounted coaxially with the rotational axis and defined by inside and outside diameters. The rotor has a first exterior surface facing the stator and a second exterior surface arranged opposite the first exterior surface. A ferromagnetic rotor core defines the rotor second exterior surface. The rotor also includes alternating south and north pole permanent magnets (PMs) arranged on the rotor core symmetrically around the axis and facing the stator. The rotor additionally includes channels extending radially outwardly across the rotor and configured to direct a coolant, via centrifugal force, from the inside diameter toward the outside diameter as the rotor rotates about the axis.
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公开(公告)号：US20240014699A1
公开(公告)日：2024-01-11
申请号：US17873470
申请日：2022-07-26
Applicant: GM Global Technology Operations LLC
Inventor： John S. Agapiou , Jian Yao , Zhen Gao , SeungHwan Keum
Abstract: An axial flux electric motor includes a housing including an inner surface and a stator fixedly mounted in the housing. The stator includes a plurality of stator segments each supporting a winding, an inner support member defining a central passage, and an outer annular member constraining the plurality of stator segments. The outer annular member includes an outer surface portion abutting the inner surface of the housing. A thermal connection system is disposed between the outer surface portion of the outer annular member and the inner surface. The thermal connection system transfers heat from the stator into the housing.
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公开(公告)号：US20230387735A1
公开(公告)日：2023-11-30
申请号：US17847705
申请日：2022-06-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： SeungHwan Keum , Jian Yao , Anthony Michael Coppola
Abstract: A stator of an electric machine includes a stator core and a plurality of electrically conductive windings secured to the stator core. A volume of potting material supports the plurality of electrically conductive windings at the stator core. One or more stator coolant channels are defined in the volume of potting material configured to convey a flow of stator coolant therethrough to remove heat from the plurality of electrically conductive windings. A method of forming a stator of an electric machine includes arranging a plurality of electrically conductive windings on a stator core, applying a volume of potting material to the plurality of electrically conductive windings, and defining one or more stator coolant channels in the volume of potting material. The one or more stator coolant channels are configured to convey a flow of stator coolant therethrough to remove heat from the plurality of electrically conductive windings.
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公开(公告)号：US20230009660A1
公开(公告)日：2023-01-12
申请号：US17305642
申请日：2021-07-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： SeungHwan Keum , Jun-mo Kang , Insu Chang , Young J. Kim
Abstract: In various embodiments, systems, apparatuses and methods are provided to distribute coolant to an electric motor. The apparatus includes a pan configured with a set of holes for coolant flow; an assembly including a set of bar linkages, a set of discs, and a single actuator motor wherein the assembly is attached to the pan wherein the single actuator motor is linked via bar linkages to discs that enable configuring a planar angle of the pan to obtain an optimum hole location of holes for coolant flow; and in response to external disturbances to the apparatus that redirect the coolant flow from the target region of the electric motor, the single actuator motor is controlled by an algorithm to change the planar angle of the pan to obtain the optimum hole location to direct coolant flow to the target region of the electric motor.
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公开(公告)号：US20220340198A1
公开(公告)日：2022-10-27
申请号：US17236422
申请日：2021-04-21
Applicant: GM Global Technology Operations LLC
Inventor： Insu Chang , Jun-mo Kang , SeungHwan Keum
Abstract: A yaw stability control system is provided for a motor vehicle. The system includes one or more cameras, a plurality of wheel speed sensors, a yaw angle sensor, and a steering angle sensor. The system further includes an electric motor connected to a reaction wheel. The system further includes a processor and a memory including instructions such that the processor is programmed to: determine a desired yaw angle of the motor vehicle based on a video signal, speed signals, a yaw signal, and a steering signal. The processor is further programmed to generate an actuation signal associated with the desired yaw angle. The electric motor angularly rotates the reaction wheel at a predetermined angular rate in a predetermined rotational direction to produce a counter-acting torque that rotates the motor vehicle to the desired yaw angle, in response to the electric motor receiving the actuation signal from the processor.
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