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    ENGINE TORQUE CONTROL WITH FUEL MASS
    12.
    发明申请
    ENGINE TORQUE CONTROL WITH FUEL MASS 有权
    发动机扭矩控制与燃油质量

    公开(公告)号：US20160363085A1

    公开(公告)日：2016-12-15

    申请号：US14735660

    申请日：2015-06-10

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Jun-Mo Kang ,  Orgun A. Guralp ,  Sai S.V. Rajagopalan ,  Hanho Yun ,  Chen-Fang Chang ,  Paul M. Najt

    IPC: F02D41/30 ,  F02D29/02

    CPC classification number: F02D41/3011 ,  F02D29/02 ,  F02D35/023 ,  F02D41/14 ,  F02D41/1448 ,  F02D41/1497 ,  F02D41/3035 ,  F02D2041/1433 ,  F02D2200/0406

    Abstract: An engine assembly includes an internal combustion engine with an engine block having at least one cylinder. An intake manifold and an exhaust manifold are each fluidly connected to the at least one cylinder and define an intake manifold pressure (pi) and an exhaust manifold pressure (pe), respectively. A controller is operatively connected to the internal combustion engine and configured to receive a torque request (TR). The controller is programmed to determine a desired fuel mass (mf) for controlling a torque output of the internal combustion engine. The desired fuel mass (mf) is based at least partially on the torque request (TR), the intake and exhaust manifold pressures and a pressure-volume (PV) diagram of the at least one cylinder.

    Abstract translation: 发动机组件包括具有至少一个气缸的发动机缸体的内燃机。 进气歧管和排气歧管各自流体地连接到至少一个气缸并且分别限定进气歧管压力（pi）和排气歧管压力（pe）。 控制器可操作地连接到内燃机并且被配置为接收扭矩请求（TR）。 控制器被编程以确定用于控制内燃机的扭矩输出的期望燃料质量（mf）。 所需的燃料质量（mf）至少部分地基于所述至少一个气缸的扭矩要求（TR），进气和排气歧管压力以及压力 - 体积（PV）图。

    PRESSURE CONTROL OF BATTERY CELLS
    14.
    发明申请
    PRESSURE CONTROL OF BATTERY CELLS 有权

    公开(公告)号：US20250030061A1

    公开(公告)日：2025-01-23

    申请号：US18354782

    申请日：2023-07-19

    Applicant: GM Global Technology Operations LLC

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

    IPC: H01M10/42

    Abstract: A pressure management system includes a pressure plate disposed at an initial position relative to a battery cell, the battery cell disposed in a housing, where expansion of the battery cell causes an expansion force to be applied to the pressure plate. The pressure management system also includes a mechanical linkage attached to the pressure plate, the mechanical linkage configured to move in a lateral direction in response to the expansion force and translate the expansion force to a reactive force that is opposed to the expansion force, and a biasing system including a biasing member configured to resist lateral movement of the mechanical linkage. The biasing system is configured to apply a biasing force in a direction opposite the lateral direction, the biasing force causing the mechanical linkage to apply the reactive force as a selected proportion of the expansion force.

    HEATING A MIXED-CHEMISTRY BATTERY PACK OF A VEHICLE
    15.
    发明申请
    HEATING A MIXED-CHEMISTRY BATTERY PACK OF A VEHICLE 有权

    公开(公告)号：US20240413422A1

    公开(公告)日：2024-12-12

    申请号：US18330704

    申请日：2023-06-07

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

    IPC: H01M10/615 ,  B60L58/12 ,  B60L58/27 ,  H01M10/625 ,  H01M10/63

    Abstract: A vehicle having a mixed chemistry battery having first and second battery modules, a temperature sensor, a battery heating system configured to selectively heat the first battery module and/or the second battery module, and a controller. The controller configured to monitor the temperature of the first battery module, activate the heating system based on a determination that the temperature is below a minimum threshold value, monitor a first state-of-charge (SoC) of the first battery module and the second battery module, calculate a minimum set-point temperature for the first battery module based on the first SoC, the second SoC, and a maximum current load of the first battery module, and instruct the battery heating system to provide a portion of a total available heating power of the battery heating system to the first battery module and a remainder of the total available heating power to the second battery module.

    BATTERY CELL WITH REVERSIBLE VENT VALVE
    16.
    发明申请
    BATTERY CELL WITH REVERSIBLE VENT VALVE 有权

    公开(公告)号：US20240405351A1

    公开(公告)日：2024-12-05

    申请号：US18328125

    申请日：2023-06-02

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Insun Yoon ,  Kyungjae Lee ,  Nader E. Abedrabbo ,  Meinan He ,  Hanho Yun ,  Fang Dai

    IPC: H01M50/333

    Abstract: A battery cell includes a cathode element, an anode element, and an electrolyte disposed in contact with each of the cathode and anode elements. The battery cell also includes a battery cell case constructed from a rigid material and defining an internal chamber configured to house each of the cathode element, the anode element, and the electrolyte. The battery cell case defines at least one aperture configured to provide a gas path between the internal chamber and an external environment. The battery cell additionally includes a reversible, multiple-use valve assembly mounted to the battery cell case and configured to selectively open a fluid flow through the at least one aperture to relieve a gas pressure within the internal chamber exceeding a predetermined pressure threshold.

    METHOD OF TRANSIENT CONTROL FOR ROBUST ENRICHMENT OPERATION IN LOWTEMPERATURE COMBUSTION ENGINE
    17.
    发明申请
    METHOD OF TRANSIENT CONTROL FOR ROBUST ENRICHMENT OPERATION IN LOWTEMPERATURE COMBUSTION ENGINE 有权

    公开(公告)号：US20220325671A1

    公开(公告)日：2022-10-13

    申请号：US17229418

    申请日：2021-04-13

    Applicant: GM Global Technology Operations LLC

    Inventor： Hanho Yun ,  Jun-mo Kang

    IPC: F02D13/02 ,  F02D41/02 ,  F02D41/14

    Abstract: A method of transient control for enrichment operation in a low-temperature combustion engine. The method includes determining if a current mode of the low-temperature combustion (LTC) engine is a positive valve overlap (PVO) mode. Determining if a previous mode of the LTC engine was also the PVO mode when the current mode is the PVO mode, wherein the previous mode is immediately prior to the current mode. Determining if the previous mode of the LTC engine was a negative valve overlap (NVO) mode when the previous mode was not the PVO mode. Initiating a predetermined enrichment PVO mode for the LTC engine based on the previous mode of the LTC engine. The predetermined enrichment PVO mode includes initiating a deep enrichment PVO mode, when the previous mode of the LTC engine was the NVO mode, and initiating a shallow enrichment PVO mode, when the previous mode of the LTC engine was not the NVO mode.

    Passive selective catalytic reduction (SCR) system and method for low-temperature combustion (LTC) engine
    18.
    发明授权
    Passive selective catalytic reduction (SCR) system and method for low-temperature combustion (LTC) engine 有权

    公开(公告)号：US11459967B2

    公开(公告)日：2022-10-04

    申请号：US17176277

    申请日：2021-02-16

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Hanho Yun ,  Jun-mo Kang

    IPC: F02D41/14 ,  F02D41/00 ,  F02D13/02 ,  F02P5/145 ,  F02D41/40 ,  F02D41/30

    Abstract: A combustion mode module is configured to switch operation of a low-temperature combustion (LTC) engine between a spark ignition (SI) mode, a positive valve overlap (PVO) mode, and a negative valve overlap (NVO) mode. A spark control module is configured to control a spark plug to generate a spark in a cylinder of the LTC engine when the LTC engine is operating in the SI mode. A valve control module is configured to control intake and exhaust valves of the cylinder to yield a PVO and a NVO when the LTC engine is operating in the PVO mode and the NVO mode, respectively. An air/fuel (A/F) control module is configured to adjust a desired A/F ratio of the LTC engine to a rich A/F ratio when operation of the LTC engine is switched to the PVO mode from either one of the SI mode and the NVO mode.

    METHOD AND APPARATUS FOR CONTROLLING OPERATION OF AN INTERNAL COMBUSTION ENGINE
    19.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING OPERATION OF AN INTERNAL COMBUSTION ENGINE 审中-公开

    公开(公告)号：US20180340507A1

    公开(公告)日：2018-11-29

    申请号：US15771486

    申请日：2015-12-03

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Cherian A. Idicheria ,  Hanho Yun ,  Paul M. Najt

    IPC: F02P23/04 ,  F02F1/24

    Abstract: An internal combustion engine includes a combustion chamber defined by a cylinder bore in a cylinder block, a cylinder head and a piston. A groundless barrier discharge plasma igniter including an electrode is embedded in a casing fabricated from a dielectric material and is disposed in a mounting boss. The groundless barrier discharge plasma igniter has a tip portion that protrudes through an opening in the cylinder head into the combustion chamber. A controller having an electrical ground connection to the cylinder head is configured to apply a high frequency electrical pulse to the groundless barrier discharge plasma igniter. An electrical ground path is formed between the mounting boss and the cylinder head. A plurality of plasma discharge streamers is generated on the casing between the tip portion and the mounting boss when the controller applies the high frequency electrical pulse to the groundless barrier discharge plasma igniter.

    Variable second injection control for internal combustion engine assemblies
    20.
    发明授权
    Variable second injection control for internal combustion engine assemblies 有权

    公开(公告)号：US09982624B1

    公开(公告)日：2018-05-29

    申请号：US15410039

    申请日：2017-01-19

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Jun-Mo Kang ,  Hanho Yun

    IPC: F02D41/30 ,  F02D41/40 ,  F02D41/04 ,  F02D41/00 ,  F02D41/14 ,  F02M35/10

    CPC classification number: F02D41/402 ,  F02D41/0072 ,  F02D41/144 ,  F02M35/1038

    Abstract: Disclosed are multi-pulse fuel delivery control systems, methods for using such systems, and motor vehicles with engines employing multi-pulse fuel injection schemes. A fuel delivery control system is disclosed with fuel injectors that selectively inject multiple pulses of fuel per working cycle into cylinders of an engine. An engine sensor detects an operating condition of the engine, and an exhaust gas recirculation (EGR) sensor detects a state of an EGR system coupled to the engine. An engine control unit is programmed to: determine, from the detected EGR state, a current intake burned gas fraction; determine, from the detected engine operating condition, a desired intake burned gas fraction; determine a secondary fuel mass injection adjustment based on the desired and current intake burned gas fractions; and command the fuel injectors to inject two fuel pulses into each cylinder per working cycle, with the second pulse modified based on the determined adjustment.

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