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公开(公告)号：US11814995B2
公开(公告)日：2023-11-14
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
CPC classification number: F01N3/2006 , B01D53/9418 , F01N3/2066 , F02D41/064 , F01N3/206 , F01N9/00 , F01N2240/16 , F01N2260/06 , F01N2270/04 , F01N2270/08 , F01N2270/10 , F01N2610/1433
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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公开(公告)号：US11713035B2
公开(公告)日：2023-08-01
申请号：US17009326
申请日：2020-09-01
Applicant: CUMMINS INC.
Inventor： Sriram S. Popuri , Adrian P. Dale , Kristopher R. Bare , Xing Jin
CPC classification number: B60W20/13 , B60K6/46 , B60W10/06 , B60W10/26 , B60W2400/00 , B60W2510/0633 , B60W2510/244
Abstract: A powertrain system includes an engine coupled to a turbocharger and a timer, a motor generator coupled to the engine and a battery, and a controller. The controller is structured to receive data indicative of a state of charge from the battery, determine whether the state of charge is at or below a high predefined threshold, modulate control on the engine and the timer in response to determining the state of charge is above the high predefined threshold, determine whether the state of charge is above a low predefined threshold in response to the state of charge being at or below the high predefined threshold, and modulate control of the engine and the timer in response to determining the state of charge is at or below the low predefined threshold.
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公开(公告)号：US20220372926A1
公开(公告)日：2022-11-24
申请号：US17817096
申请日：2022-08-03
Applicant: Cummins Inc.
Inventor： Aaron William Beinborn , Lyle E. Kocher , J. Steven Kolhouse , Suk-Min Moon , Sriram S. Popuri , Janardhan Kodavasal , Ved Merchant , Kristopher R. Bare , Avra Brahma
Abstract: A system and method of controlling operation of an internal combustion engine are provided. The method includes performing a cylinder deactivation operation while running the engine, selecting at least one of the plurality of temperature maintenance actions to increase an exhaust temperature, and performing at least one of the plurality of temperature maintenance actions effective to increase the exhaust temperature. The plurality of temperature maintenance actions may include one or more of a charge air cooler bypass operation, an EGR cooler bypass operation, an aftertreatment system heater operation, a turbocharger bypass operation, a turbocharger geometry adjustment operation, an intake air throttle adjustment operation, and a delayed injection timing operation, or combinations thereof.
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4.发明申请公开(公告)号：US20250052181A1
公开(公告)日：2025-02-13
申请号：US18930992
申请日：2024-10-29
Applicant: Cummins Inc.
Inventor： Kristopher R. Bare , Xing Jin , Jennifer Kay Light-Holets , Sriram S. Popuri , Xiaobo Song
Abstract: A system includes an intake heater positioned in or proximate to an air intake of an engine, an aftertreatment system heater positioned downstream of the engine, and a controller coupled to the intake heater and the aftertreatment system heater. The controller is structured to operate the intake heater to heat air entering the engine for a predefined time period. The controller is structured to determine, based on information indicative of a temperature regarding an exhaust aftertreatment system, that the temperature regarding the exhaust aftertreatment system is below a predefined temperature threshold. The controller is structured to continue operating the intake heater after the predefined time period responsive to the temperature regarding the exhaust aftertreatment system being below the predefined temperature threshold.
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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
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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Patent Agency Ranking
6.发明申请公开(公告)号：US20210372310A1
公开(公告)日：2021-12-02
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：US20250026351A1
公开(公告)日：2025-01-23
申请号：US18904047
申请日：2024-10-01
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
Abstract: A method includes receiving, by a controller, information indicative of a temperature of an aftertreatment system of the vehicle and an exhaust gas characteristic. The method includes comparing, by the controller, the temperature of the aftertreatment system to a temperature threshold, and comparing, by the controller, the exhaust gas characteristic to a characteristic threshold. The method includes, responsive to the comparisons, commanding, by the controller, an aftertreatment system heater to selectively engage or disengage to warm the aftertreatment system of the vehicle.
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8.发明授权公开(公告)号：US12163453B2
公开(公告)日：2024-12-10
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
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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9.发明授权公开(公告)号：US11920506B2
公开(公告)日：2024-03-05
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
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 activate the second heater in response to determining that a compound deposit is likely present.
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公开(公告)号：US20220388514A1
公开(公告)日：2022-12-08
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
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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