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    AFTERTREATMENT HEATER MANAGEMENT FOR EFFICIENT THERMAL MANAGEMENT
    1.
    发明申请
    AFTERTREATMENT HEATER MANAGEMENT FOR EFFICIENT THERMAL MANAGEMENT 有权

    公开(公告)号：US20250092807A1

    公开(公告)日：2025-03-20

    申请号：US18960946

    申请日：2024-11-26

    Applicant: Cummins Inc.

    Inventor： Xing Jin ,  Janardhan Kodavasal ,  Ved Merchant ,  Sriram S. Popuri

    IPC: F01N3/20

    Abstract: A system, method, and apparatus for decreasing harmful emissions is provided. The system includes an aftertreatment system configured to receive exhaust gas from an engine system; a heater coupled to the aftertreatment system and configured to provide heat; and a controller coupled to the heater. The controller is configured to: determine that the engine system is idling; in response to determining that the engine system is idling, determine whether a value regarding operation of the engine system is greater than a threshold value; in response to determining that the value is greater than the threshold value, determine whether a temperature regarding the aftertreatment system is greater than a threshold temperature; and in response to determining that the temperature of the aftertreatment system is greater than the threshold temperature, at least one of disable or partially disable the heater.

    Systems and methods for cold operation NOx burden reduction
    3.
    发明授权
    Systems and methods for cold operation NOx burden reduction 有权

    公开(公告)号：US11519350B2

    公开(公告)日：2022-12-06

    申请号：US17544069

    申请日：2021-12-07

    Applicant: Cummins Inc.

    Inventor： Janardhan Kodavasal ,  Ved Merchant ,  Agneya Turlapati ,  Kristopher R. Bare

    IPC: F02D41/02 ,  F02D41/14 ,  F02D41/38 ,  F02D41/40 ,  F01N3/20

    Abstract: A method comprises determining that an aftertreatment system is in a cold-operation mode; initiating a low engine-out NOx (LEON) mode by controlling a component of a vehicle containing the aftertreatment system to decrease an instantaneous engine out NOx (EONOx) amount and to increase exhaust energy relative to a normal operation mode for an engine of the vehicle; receiving information indicative of an operating status of the vehicle during the LEON mode; disengaging the LEON mode; subsequent to disengaging the LEON mode, initiating a thermal management (TM) mode for the aftertreatment system, wherein the TM mode is initiated by controlling a component of the vehicle to increase fueling to the engine for a power level by reducing engine efficiency and directing excess fuel to the aftertreatment system; receiving information indicative of an operating status of the vehicle during the TM mode; and disengaging the TM mode.

    Aftertreatment heater management for efficient thermal management
    4.
    发明授权
    Aftertreatment heater management for efficient thermal management 有权

    公开(公告)号：US12173635B2

    公开(公告)日：2024-12-24

    申请号：US18083156

    申请日：2022-12-16

    Applicant: Cummins Inc.

    Inventor： Xing Jin ,  Janardhan Kodavasal ,  Ved Merchant ,  Sriram S. Popuri

    IPC: F01N3/00 ,  F01N3/20

    Abstract: A system, method, and apparatus for decreasing harmful emissions is provided. The system includes an aftertreatment system comprising an exhaust conduit that directs exhaust gas from an engine system; a heater coupled to the aftertreatment system and configured to provide heat; and a controller coupled to the heater. The controller is configured to: determine whether the engine system is idling; in response to determining that the engine system is idling, determine whether a conversion efficiency of the engine system is greater than a threshold value; in response to determining that the conversion efficiency is greater than the threshold value, determine whether a temperature regarding the aftertreatment system is greater than a threshold temperature; and in response to determining that the temperature of the aftertreatment system is greater than the threshold temperature, at least one of disable or partially disable the heater.

    AFTERTREATMENT HEATER MANAGEMENT FOR EFFICIENT THERMAL MANAGEMENT
    5.
    发明公开
    AFTERTREATMENT HEATER MANAGEMENT FOR EFFICIENT THERMAL MANAGEMENT 审中-公开

    公开(公告)号：US20230193798A1

    公开(公告)日：2023-06-22

    申请号：US18083156

    申请日：2022-12-16

    Applicant: Cummins Inc.

    Inventor： Xing Jin ,  Janardhan Kodavasal ,  Ved Merchant ,  Sriram S. Popuri

    IPC: F01N3/20

    CPC classification number: F01N3/2006 ,  F01N2900/1602 ,  F01N2900/1621 ,  F01N2900/08 ,  F01N2900/1411 ,  F01N2900/0414 ,  F01N2900/0418

    Abstract: A system, method, and apparatus for decreasing harmful emissions is provided. The system includes an aftertreatment system comprising an exhaust conduit that directs exhaust gas from an engine system; a heater coupled to the aftertreatment system and configured to provide heat; and a controller coupled to the heater. The controller is configured to: determine whether the engine system is idling; in response to determining that the engine system is idling, determine whether a conversion efficiency of the engine system is greater than a threshold value; in response to determining that the conversion efficiency is greater than the threshold value, determine whether a temperature regarding the aftertreatment system is greater than a threshold temperature; and in response to determining that the temperature of the aftertreatment system is greater than the threshold temperature, at least one of disable or partially disable the heater.

    SYSTEMS AND METHODS FOR COLD OPERATION NOx BURDEN REDUCTION
    8.
    发明申请
    SYSTEMS AND METHODS FOR COLD OPERATION NOx BURDEN REDUCTION 有权

    公开(公告)号：US20230086566A1

    公开(公告)日：2023-03-23

    申请号：US18075053

    申请日：2022-12-05

    Applicant: Cummins Inc.

    Inventor： Janardhan Kodavasal ,  Ved Merchant ,  Agneya Turlapati ,  Kristopher R. Bare

    IPC: F02D41/02 ,  F02D41/14 ,  F02D41/38 ,  F02D41/40

    Abstract: A method includes: initiating a low engine-out NOx (LEON) mode by controlling a component of a vehicle having an aftertreatment system to decrease an instantaneous engine-out NOx (EONOx) amount; comparing a temperature of the aftertreatment system during the LEON mode to a warm-operation threshold temperature; responsive to determining that the temperature of the aftertreatment system exceeds the warm-operation threshold temperature, disengaging the LEON mode; responsive to determining that the temperature of the aftertreatment system is below the warm-up operation threshold temperature, comparing information indicative of an operating status of the vehicle to a LEON exit threshold; and disengaging the LEON mode responsive to determining that the information indicative of the operating status of the vehicle during the LEON mode exceeds the LEON exit threshold.

    SYSTEMS AND METHODS FOR COLD OPERATION NOx BURDEN REDUCTION
    9.
    发明申请
    SYSTEMS AND METHODS FOR COLD OPERATION NOx BURDEN REDUCTION 有权

    公开(公告)号：US20220178320A1

    公开(公告)日：2022-06-09

    申请号：US17544069

    申请日：2021-12-07

    Applicant: Cummins Inc.

    Inventor： Janardhan Kodavasal ,  Ved Merchant ,  Agneya Turlapati ,  Kristopher R. Bare

    IPC: F02D41/02 ,  F02D41/14 ,  F02D41/38 ,  F02D41/40

    Abstract: A method comprises determining that an aftertreatment system is in a cold-operation mode; initiating a low engine-out NOx (LEON) mode by controlling a component of a vehicle containing the aftertreatment system to decrease an instantaneous engine out NOx (EONOx) amount and to increase exhaust energy relative to a normal operation mode for an engine of the vehicle; receiving information indicative of an operating status of the vehicle during the LEON mode; disengaging the LEON mode; subsequent to disengaging the LEON mode, initiating a thermal management (TM) mode for the aftertreatment system, wherein the TM mode is initiated by controlling a component of the vehicle to increase fueling to the engine for a power level by reducing engine efficiency and directing excess fuel to the aftertreatment system; receiving information indicative of an operating status of the vehicle during the TM mode; and disengaging the TM mode.

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