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公开(公告)号：US20220290594A1
公开(公告)日：2022-09-15
申请号：US17663562
申请日：2022-05-16
Applicant: Cummins Inc.
Inventor： Kunlun Liu , Xiaobo Song , Xing Jin , Kristopher R. Bare , Sriram S. Popuri , Scott Robert Bardakjy , Agneya Turlapati
Abstract: A recycling loop configuration of an exhaust gas aftertreatment system decreases a level of system-out NOx emissions of an engine. An apparatus including the configuration has an exhaust gas recycling system having a closed gas recycling loop system configured to heat gas circulating within the loop, and a blower for circulating gas within the loop. A method for operating the engine includes preheating at least one aftertreatment component of an exhaust gas aftertreatment system of the engine by exposing the component to heated gas circulating in a closed gas recycling loop.
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12.发明授权公开(公告)号：US11339698B2
公开(公告)日：2022-05-24
申请号：US16884897
申请日：2020-05-27
Applicant: Cummins Inc.
Inventor： Kristopher R. Bare , Xing Jin , Jennifer Kay Light-Holets , Sriram S. Popuri , Xiaobo Song
Abstract: A system includes a first heater positioned in or proximate to an exhaust aftertreatment system in exhaust gas-receiving communication with an engine, a second heater positioned downstream of the first heater, and a controller coupled to the first and second heaters. The controller is structured to determine, based on information indicative of a temperature regarding the exhaust aftertreatment system, that the temperature is below a temperature threshold; receive information regarding a characteristic of a battery coupled to the first heater and the second heater; control the temperature regarding the exhaust aftertreatment system without using the first or second heaters in response to determining that the characteristic of the battery is below a first threshold; and control a temperature regarding the exhaust aftertreatment system using the first heater in response to determining that the characteristic of the battery is above the first threshold but below a second threshold.
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公开(公告)号：US12128898B2
公开(公告)日：2024-10-29
申请号：US17337016
申请日：2021-06-02
Applicant: Cummins Inc.
Inventor： Kristopher R. Bare , Kenneth M. Follen , Xing Jin , Jinyong Luo , Manik Narula , Andrew W. Osburn , Anant Puri , Xiaobo Song , Ying Yuan
CPC classification number: B60W30/18127 , B60W20/20 , B60W20/30 , F02M31/12
Abstract: A method for managing emissions from a vehicle having an aftertreatment system is provided. The method includes: receiving, by a controller, information indicative of a temperature of an aftertreatment system of the vehicle and a power output of an engine of the vehicle; comparing, by the controller, the temperature of the aftertreatment system to a temperature threshold; comparing, by the controller, the power output to a power output threshold; and responsive to the comparisons, commanding, by the controller, an aftertreatment system heater to selectively engage and disengage to warm the aftertreatment system of the vehicle.
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公开(公告)号：US20240254938A1
公开(公告)日：2024-08-01
申请号：US18603096
申请日：2024-03-12
Applicant: Cummins Inc. , Scania CV AB
Inventor： Janardhan Kodavasal , Ved Merchant , Agneya Turlapati , Kristopher R. Bare
IPC: F02D41/02 , F01N3/023 , F01N3/08 , F01N3/20 , F01N9/00 , F01N11/00 , F02D41/14 , F02D41/38 , F02D41/40
CPC classification number: F02D41/0255 , F02D41/1461 , F02D41/3836 , F02D41/405 , F01N3/0231 , F01N3/0807 , F01N3/2006 , F01N9/00 , F01N9/005 , F01N11/002 , F01N11/005 , F01N2410/06 , F01N2430/06 , F01N2550/03 , F01N2570/14 , F01N2900/1404 , F01N2900/1602 , F01N2900/1606 , F01N2900/1611 , F01N2900/1614 , F01N2900/1622 , F01N2900/1626 , F02D2200/0802 , F02D2200/0806 , F02D2250/36
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. The method also includes comparing a temperature of the aftertreatment system to a threshold temperature. The method also includes responsive to determining that the temperature of the aftertreatment system exceeds the threshold temperature, disengaging the LEON mode. The method also includes responsive to determining that the temperature of the aftertreatment system is below the threshold temperature, comparing a NOx value to a NOx value threshold. The method also includes disengaging the LEON mode responsive to determining that the NOx value exceeds the NOx value threshold.
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公开(公告)号：US11970991B2
公开(公告)日：2024-04-30
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 , F01N3/023 , F01N3/08 , F01N3/20 , F01N9/00 , F01N11/00 , F02D41/14 , F02D41/38 , F02D41/40
CPC classification number: F02D41/0255 , F02D41/1461 , F02D41/3836 , F02D41/405 , F01N3/0231 , F01N3/0807 , F01N3/2006 , F01N9/00 , F01N9/005 , F01N11/002 , F01N11/005 , F01N2410/06 , F01N2430/06 , F01N2550/03 , F01N2570/14 , F01N2900/1404 , F01N2900/1602 , F01N2900/1606 , F01N2900/1611 , F01N2900/1614 , F01N2900/1622 , F01N2900/1626 , F02D2200/0802 , F02D2200/0806 , F02D2250/36
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.
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Patent Agency Ranking
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
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.
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17.发明申请公开(公告)号：US20220282654A1
公开(公告)日：2022-09-08
申请号：US17751336
申请日：2022-05-23
Applicant: Cummins Inc.
Inventor： Kristopher R. Bare , Xing Jin , Jennifer Kay Light-Holets , Sriram S. Popuri , Xiaobo Song
Abstract: A system includes a first heater positioned in or proximate to an exhaust aftertreatment system in exhaust gas-receiving communication with an engine, a second heater positioned downstream of the first heater, and a controller coupled to the first and second heaters. The controller is structured to activate the second heater in response to determining that a compound deposit is likely present.
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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
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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19.发明公开公开(公告)号：US20240167408A1
公开(公告)日：2024-05-23
申请号：US18427426
申请日：2024-01-30
Applicant: CUMMINS INC.
Inventor： Kristopher R. Bare , Xing Jin , Jennifer Kay Light-Holets , Sriram S. Popuri , Xiaobo Song
CPC classification number: F01N3/2013 , F01N3/023 , F01N13/009 , F01N3/2066 , F01N11/002 , F01N2260/08 , F01N2550/22 , F01N2610/03
Abstract: A system includes a first heater positioned in or proximate to an exhaust aftertreatment system in exhaust gas-receiving communication with an engine, a second heater positioned downstream of the first heater, and a controller coupled to the first and second heaters. The controller is structured to: determine, based on information indicative of a temperature regarding the exhaust aftertreatment system, that the temperature regarding the exhaust aftertreatment system is below a predefined temperature threshold; determine that the second heater is in or likely in an error state; and control a temperature regarding the exhaust aftertreatment system using the first heater in response to determining that the second heater is in or likely in the error state, wherein the first heater controls the temperature regarding the exhaust aftertreatment system after a temperature regarding an engine intake air is at or above a predefined air intake temperature threshold.
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20.发明公开公开(公告)号：US20240026808A1
公开(公告)日：2024-01-25
申请号：US18266192
申请日：2021-12-08
Applicant: Cummins Inc.
Inventor： Kristopher R. Bare , Michael J. Cunningham , Jennifer Kay Light-Holets , Xiaobo Song , Agneya Turlapati
CPC classification number: F01N3/208 , F01N9/007 , F01N11/00 , F01N2250/02 , F01N2560/026 , F01N2900/08 , F01N2900/1411 , F01N2610/02 , F01N2900/0412
Abstract: A system includes an exhaust aftertreatment system coupled to an engine, and a controller including at least one processor coupled to at least one memory device storing instructions that, when executed by the at least one processor, cause the controller to perform certain operations. The operations include estimating an aging of the exhaust aftertreatment system, and adjusting at least one of an entry temperature threshold or an exit temperature threshold for a thermal management mode for the exhaust aftertreatment system based on the aging of the exhaust aftertreatment system.
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