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    SERIES-PARALLEL MIXED CHEMISTRY BATTERY SYSTEMS
    2.
    发明申请
    SERIES-PARALLEL MIXED CHEMISTRY BATTERY SYSTEMS 有权

    公开(公告)号：US20240416766A1

    公开(公告)日：2024-12-19

    申请号：US18333917

    申请日：2023-06-13

    Applicant: GM Global Technology Operations LLC

    Inventor： Shuonan Xu ,  Hanho Yun ,  Jun-mo Kang

    IPC: B60L50/60 ,  B60L58/13 ,  B60L58/18

    Abstract: In one exemplary embodiment, a system for controlling power transfer includes a propulsion battery assembly configured to supply power to an electric motor of a vehicle, the propulsion battery assembly having a first chemistry, and a supplemental battery assembly selectively connected to the propulsion battery assembly, the supplemental battery assembly having a second chemistry that is different than the first chemistry. The system also includes a controller configured to selectively connect the supplemental battery assembly to perform at least one of providing electrical charge to the propulsion battery assembly, and supplying electrical power to the electric motor.

    System and method of active end-turn cooling for an interior permanent magnet motor
    5.
    发明授权
    System and method of active end-turn cooling for an interior permanent magnet motor 有权

    公开(公告)号：US11705781B2

    公开(公告)日：2023-07-18

    申请号：US17377723

    申请日：2021-07-16

    Applicant: GM Global Technology Operations LLC

    Inventor： Insu Chang ,  SeungHwan Keum ,  Jun-mo Kang ,  Young J. Kim

    IPC: H02K9/19 ,  H02K1/20 ,  H02K5/20 ,  H02K9/193

    CPC classification number: H02K9/193 ,  H02K1/20 ,  H02K5/203

    Abstract: A system and method of active endturn cooling of an electric motor of a vehicle is provided. The method comprises providing a motor having a coolant nozzle and a cam, and measuring speed, lateral acceleration, and road tilt angle of coolant due to road tilt. The method further comprises calculating coolant angle and coolant acceleration angle based on the road tilt angle and the lateral acceleration if the speed is greater than zero. The method further comprises comparing the coolant angle with a critical angle. The method further comprises calculating a first control angle and a first coolant distance based on the road tilt angle and the lateral acceleration of the vehicle if the acceleration angle is greater than the critical angle. The method further comprises determining a cam position based on the first control angle. The method further comprises moving the cam to the position to move the nozzle and compensate for the lateral acceleration such that coolant drops within a target area of the motor.

    INTERIOR PERMANENT MAGNET MOTOR HAVING CONTROLLABLE COOLANT DISTRIBUTION
    6.
    发明申请
    INTERIOR PERMANENT MAGNET MOTOR HAVING CONTROLLABLE COOLANT DISTRIBUTION 有权

    公开(公告)号：US20220360144A1

    公开(公告)日：2022-11-10

    申请号：US17315730

    申请日：2021-05-10

    Applicant: GM Global Technology Operations LLC

    Inventor： SeungHwan Keum ,  Insu Chang ,  Jun-mo Kang ,  Young J. Kim

    IPC: H02K9/19 ,  H02K5/20 ,  H02K3/28

    Abstract: An interior permanent magnet motor having controllable coolant distribution is provided. The motor comprises a motor housing and a rotary shaft connected to a rotor rotatably disposed in the housing. The motor further comprises a stator unit disposed in the housing and comprising conductive windings arranged about the rotor. The windings have a straight portion radially extending to an end-turn portion. The motor further comprises an oil sump disposed on the housing above the stator unit. The oil sump comprises a reservoir having an inner side and an outer side. The reservoir has at least one aperture formed therethrough over the end-turn portion. The motor further comprises a movable nozzle having a first open end extending to a second open end. The first open end is connected to the at least one aperture such that the movable nozzle and reservoir are in fluid communication. The second open end extends from the at least one aperture and positioned adjacently above the end turn portion for coolant distribution. The motor further comprises a connector movably disposed in the housing proximate to the movable nozzle. The motor further comprises a cam connected to the connector and in contact with the nozzle. Upon movement of the connector, the cam is arranged with the connector to move the second open end of the nozzle over the end turn portion for distribution of coolant oil from the oil sump to the end turn portion.

    EGR and reformate fraction estimation in a dedicated EGR engine
    7.
    发明授权
    EGR and reformate fraction estimation in a dedicated EGR engine 有权

    公开(公告)号：US10480435B2

    公开(公告)日：2019-11-19

    申请号：US15927467

    申请日：2018-03-21

    Applicant: GM Global Technology Operations LLC

    Inventor： Jun-mo Kang ,  Gregory P. Matthews ,  Martino A. Casetti

    IPC: F02D41/00 ,  F02D41/24 ,  F02D41/14 ,  F02D41/02 ,  F02D13/02 ,  F02P5/04 ,  F02D41/30 ,  F02B37/18

    Abstract: A method of operating a dedicated-EGR engine includes providing a rich air-fuel mixture to a dedicated cylinder; combusting the rich air-fuel mixture in the dedicated cylinder; modeling the combustion of the rich air-fuel mixture in the dedicated cylinder; estimating the composition of the combustion products in the dedicated cylinder based on interpolation of chemical reaction models of stoichiometric and rich combustion. The method further includes mixing the combustion products from the dedicated cylinder with air to produce an intake mixture; estimating a mass fraction of reformate and a mass fraction of burned gas in the intake mixture; providing the intake mixture to the intake ports of all of the cylinders of the dedicated-EGR engine; combusting an air-fuel mixture in a non-dedicated cylinder of the engine; and controlling an engine control parameter based on the estimated mass fractions of reformate and burned gas in the intake mixture.

    Method and apparatus for vehicle accessory and load management
    8.
    发明授权
    Method and apparatus for vehicle accessory and load management 有权

    公开(公告)号：US10099702B2

    公开(公告)日：2018-10-16

    申请号：US15247252

    申请日：2016-08-25

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Steven E. Muldoon ,  Dongxu Li ,  Yiran Hu ,  Jun-mo Kang ,  Chen-fang Chang

    IPC: B60W50/00 ,  B60W10/06 ,  B60W10/30 ,  B60W30/182 ,  B60W30/188

    Abstract: A vehicle is described, and includes a drivetrain system including an internal combustion engine and a geartrain, an accessory device, and a route monitoring system. A controller includes an instruction set to monitor operation of the accessory device, and a request to operate the accessory device. When the request to operate the accessory device includes a request to activate the accessory device based upon not exceeding a limit for an operating parameter of the accessory device, the instruction set executes to determine a horizon for the vehicle based upon the projected path for the vehicle, determine a projected road load and a speed constraint based upon the horizon for the vehicle, and determine a projected axle torque command based upon the projected road load. A first routine determines a first command for operating the accessory device that minimizes fuel consumption and meets the projected axle torque command.

    PRESSURE CONTROL OF BATTERY CELLS
    10.
    发明申请
    PRESSURE CONTROL OF BATTERY CELLS 有权

    公开(公告)号：US20250030039A1

    公开(公告)日：2025-01-23

    申请号：US18355761

    申请日：2023-07-20

    Applicant: GM Global Technology Operations LLC

    Inventor： Jun-mo Kang ,  Insu Chang ,  Yongjie Zhu ,  Chunhao J. Lee ,  Chen-fang Chang

    IPC: H01M10/04 ,  B60L50/64 ,  B60L58/10 ,  H01M10/48 ,  H01M50/202 ,  H01M50/211 ,  H01M50/242 ,  H01M50/249

    Abstract: A pressure management system includes a pressure plate configured to be disposed at an initial position relative to a battery cell in a housing, the initial position including a first orientation, a tilting assembly configured to allow the pressure plate to change from a first orientation to a second orientation based on the expansion force being non-uniform. The system includes a mechanical linkage attached to the pressure plate and configured to move laterally in response to the expansion force and translate the expansion force to a reactive force, and a biasing system including a biasing member configured to resist a lateral movement of the mechanical linkage. The biasing system is configured to apply a biasing force that causes the mechanical linkage to apply the reactive force, and based on the expansion force being non-uniform, is controllable to change the biasing force to balance an internal pressure of the cell.

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