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    Vehicle systems and methods for aftertreatment preheating
    1.
    发明授权
    Vehicle systems and methods for aftertreatment preheating 有权

    公开(公告)号：US11885250B1

    公开(公告)日：2024-01-30

    申请号：US18315191

    申请日：2023-05-10

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Vijay A. Ramappan ,  Rafat F. Hattar

    IPC: F01N3/20

    CPC classification number: F01N3/2013 ,  F01N2900/0602 ,  F01N2900/08 ,  F01N2900/104 ,  F01N2900/1602

    Abstract: Vehicle systems and methods are provided for preheating an aftertreatment system prior to engine ignition. A method involves obtaining a first measurement indicative of a current temperature associated with the aftertreatment system, obtaining a second measurement indicative of a current state of an energy source coupled to a heating element integrated with the aftertreatment system, determining an amount of electrical energy to be applied to the heating element based at least in part on a difference between the current temperature associated with the aftertreatment system and a target temperature for the aftertreatment system, and automatically enabling current flow from the energy source to the heating element prior to ignition of the engine for a duration of time in a manner that is influenced by the amount of electrical energy to be applied to the heating element and the current state of the energy source.

    Engine startup control systems and methods
    3.
    发明授权
    Engine startup control systems and methods 有权
    发动机启动控制系统和方法

    公开(公告)号：US09115684B2

    公开(公告)日：2015-08-25

    申请号：US13893758

    申请日：2013-05-14

    Applicant: GM Global Technology Operations LLC

    Inventor： Rafat F. Hattar ,  J. Michael Gwidt ,  Bradford W. Bur

    IPC: B60W10/04 ,  B60W10/06 ,  B60W10/08 ,  F02N11/10

    CPC classification number: F02N11/103 ,  F02D41/062 ,  F02D2200/101 ,  F02D2200/602 ,  F02N11/106 ,  F02N2200/103

    Abstract: An engine control system of a vehicle includes a starter control module and an abort module. When a clutch pedal is depressed and a user activates an ignition system, the starter control module engages a starter motor with an engine and applies current to the starter motor. The abort module selectively generates an abort signal when the clutch pedal is released. The starter control module disengages the starter motor and disables current flow to the starter motor when the abort signal is generated.

    Abstract translation: 车辆的发动机控制系统包括起动器控制模块和中止模块。 当按下离合器踏板并且用户启动点火系统时，起动器控制模块将起动电动机与发动机接合并向起动电动机施加电流。 当释放离合器踏板时，中止模块选择性地产生中止信号。 启动器控制模块使起动马达脱离，当产生中止信号时，禁止起动马达的电流流动。

    ENGINE STARTUP CONTROL SYSTEMS AND METHODS
    4.
    发明申请
    ENGINE STARTUP CONTROL SYSTEMS AND METHODS 有权
    发动机启动控制系统和方法

    公开(公告)号：US20140343812A1

    公开(公告)日：2014-11-20

    申请号：US13893758

    申请日：2013-05-14

    Applicant: GM Global Technology Operations LLC

    Inventor： Rafat F. Hattar ,  J. Michael Gwidt ,  Bradford W. Bur

    IPC: F02N11/10

    CPC classification number: F02N11/103 ,  F02D41/062 ,  F02D2200/101 ,  F02D2200/602 ,  F02N11/106 ,  F02N2200/103

    Abstract: An engine control system of a vehicle includes a starter control module and an abort module. When a clutch pedal is depressed and a user activates an ignition system, the starter control module engages a starter motor with an engine and applies current to the starter motor. The abort module selectively generates an abort signal when the clutch pedal is released. The starter control module disengages the starter motor and disables current flow to the starter motor when the abort signal is generated.

    Abstract translation: 车辆的发动机控制系统包括起动器控制模块和中止模块。 当按下离合器踏板并且用户启动点火系统时，起动器控制模块将起动电动机与发动机接合并向起动电动机施加电流。 当释放离合器踏板时，中止模块选择性地产生中止信号。 启动器控制模块使起动马达脱离，当产生中止信号时，禁止起动马达的电流流动。

    Method and system for regenerating a gasoline particulate filter in a vehicle propulsion system
    6.
    发明授权
    Method and system for regenerating a gasoline particulate filter in a vehicle propulsion system 有权

    公开(公告)号：US10683820B2

    公开(公告)日：2020-06-16

    申请号：US15884840

    申请日：2018-01-31

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Rafat F. Hattar

    IPC: F02D41/02 ,  F01N3/02 ,  F02D41/00 ,  F01N3/025 ,  F02D41/14

    Abstract: A vehicle propulsion system includes an internal combustion engine with a first combustion chamber and a second combustion chamber, a catalytic converter in an exhaust stream in communication with an exhaust of the internal combustion engine, a gasoline particulate filter in the exhaust stream downstream of the catalytic converter, and a controller in communication with the internal combustion engine. The controller is programmed to determine if a soot loading of the gasoline particulate filter exceeds a predetermined threshold, and adjust a set of engine operating parameters of the internal combustion engine to disable combustion in the first combustion chamber and enrich a fuel mixture in the second combustion chamber if the soot loading in the gasoline particulate filter exceeds the predetermined threshold.

    METHOD OF EXHAUST TEMPERATURE PREDICTION
    7.
    发明申请
    METHOD OF EXHAUST TEMPERATURE PREDICTION 审中-公开

    公开(公告)号：US20180347435A1

    公开(公告)日：2018-12-06

    申请号：US15611381

    申请日：2017-06-01

    Applicant: GM Global Technology Operations LLC

    Inventor： Chao F. Daniels ,  Rafat F. Hattar

    IPC: F01N11/00 ,  G01M15/10

    Abstract: A torque requesting module generates a torque request for an engine based on driver input. A model predictive control (MPC) module: identifies sets of possible target values based on the torque request, each of the sets of possible target values including target effective throttle area percentage; determines predicted operating parameters for the sets of possible target values, respectively; determines cost values for the sets of possible target values, respectively; selects one of the sets of possible target values based on the cost values; and sets target values based on the possible target values of the selected one of the sets, respectively, the target values including a target pressure ratio across the throttle valve. A target area module determines a target opening area of the throttle valve based on the target effective throttle area percentage ratio. A throttle actuator module controls the throttle valve based on the target opening.

    SYSTEM AND METHOD FOR CONTROLLING AIR FLOW THROUGH AN ENGINE BASED ON A FUEL INJECTION DURATION LIMIT
    8.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING AIR FLOW THROUGH AN ENGINE BASED ON A FUEL INJECTION DURATION LIMIT 审中-公开
    基于燃油喷射时间限制的用于控制发动机的空气流的系统和方法

    公开(公告)号：US20150039208A1

    公开(公告)日：2015-02-05

    申请号：US13953884

    申请日：2013-07-30

    Applicant: GM Global Technology Operations LLC

    Inventor： Rafat F. Hattar ,  Kenneth R. Kridner

    IPC: F02D43/00

    CPC classification number: F02D43/00 ,  F02D11/10 ,  F02D41/0002 ,  F02D41/30 ,  Y02T10/42

    Abstract: A system according to the principles of the present disclosure includes a desired injection duration module, a fuel control module, and a throttle control module. The desired injection duration module determines a desired injection duration. The fuel control module compares the desired injection duration to an injection duration limit and controls a fuel injector of an engine based on the injection duration limit when the desired injection duration is greater than the injection duration limit. The throttle control module controls a throttle of the engine based on the injection duration limit when the desired injection duration is greater than the injection duration limit.

    Abstract translation: 根据本公开的原理的系统包括期望的喷射持续时间模块，燃料控制模块和节气门控制模块。 期望的注射持续时间模块确定期望的注射持续时间。 燃料控制模块将期望的喷射持续时间与喷射持续时间限制进行​​比较，并且当所需喷射持续时间大于喷射持续时间限度时，基于喷射持续时间限制来控制发动机的燃料喷射器。 当期望的喷射持续时间大于喷射持续时间限制时，油门控制模块基于喷射持续时间限制来控制发动机的油门。

    Systems and methods for recirculation of engine exhaust gas within an exhaust system having a buffer tank
    10.
    发明授权
    Systems and methods for recirculation of engine exhaust gas within an exhaust system having a buffer tank 有权

    公开(公告)号：US11788455B1

    公开(公告)日：2023-10-17

    申请号：US18055437

    申请日：2022-11-15

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Chengke Liu ,  Rafat F. Hattar

    IPC: F01N13/08 ,  B01D53/94 ,  F01N9/00

    CPC classification number: F01N13/08 ,  B01D53/9495 ,  F01N9/00 ,  F01N2900/1404 ,  F01N2900/1602

    Abstract: Methods and systems are provided for recirculation of an engine exhaust gas. The system includes an engine, an exhaust system configured to channel exhaust gas from the engine to an outlet, an aftertreatment device, an exhaust recirculation system configured to divert at least some of the exhaust gas as recirculated exhaust gas from a first position in the exhaust system downstream of the aftertreatment device, through a buffer tank, and to a second position in the exhaust system upstream of the aftertreatment device, wherein the recirculated exhaust gas is combined with the exhaust gas at the second position, a controller configured to, by a processor, selectively operate the exhaust recirculation system to control the exhaust recirculation system to divert the exhaust gas and thereby cause the recirculated exhaust gas to be treated with the aftertreatment device more than once with sequentially increased catalyst temperatures.

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