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公开(公告)号：US20190162096A1
公开(公告)日：2019-05-30
申请号：US16320844
申请日：2017-07-27
Applicant: Cummins Inc.
Inventor： John L. Hoehne , Paul Daniel Borisuk , Boopathi Singalandapuram Mahadevan , Joshua A. Lantz , Jeffrey W. Lewis , Snita Navnith Menon
IPC: F01N3/20
Abstract: Systems and methods for removing deposit in an aftertreatment system for an engine are disclosed herein. The method comprises determining an amount of deposits accumulated in the aftertreatment system, determining combustion targets for the engine in response to determining the amount of deposits exceeds a deposit threshold, and modulating an air mass flow for the engine based on the determined combustion targets. The air mass flow can be modulated by changing the position of the wastegate or the geometry of the variable geometry turbine (VGT).
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2.发明公开公开(公告)号：US20240133326A1
公开(公告)日：2024-04-25
申请号：US18402682
申请日：2024-01-02
Applicant: Cummins Inc.
Inventor： Todd C. Bouws , Ankit Raghunath Lad , Joshua A. Lantz , Boopathi Singalandapuram Mahadevan , Ian W. McGiffen , Douglas A. Roxbury
CPC classification number: F01N3/025 , F01N3/24 , F01N9/002 , F01N13/009 , F02D41/04 , F02D41/16 , F01N2900/1606 , F02D2200/0812
Abstract: Systems and methods for removing soot in an aftertreatment system are disclosed. A method includes: receiving data regarding an exhaust gas flow rate of exhaust gas; receiving data regarding a selective catalytic reduction (SCR) inlet temperature; determining an adsorption amount of soot in the exhaust aftertreatment system based on the exhaust gas flow rate of the exhaust gas and the SCR inlet temperature; comparing the adsorption amount of soot to a predefined adsorption amount limit; in response to the adsorption amount of soot exceeding the predefined adsorption amount limit; initiating an exhaust cleaning event to remove at least some accumulated soot in the exhaust aftertreatment system; receiving exhaust gas data during the exhaust cleaning event; determining a desorption amount of soot based on the exhaust gas data; comparing the desorption amount of soot to a predefined desorption limit; and ceasing the exhaust cleaning event based on the comparison.
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公开(公告)号：US20210285353A1
公开(公告)日：2021-09-16
申请号：US17214524
申请日：2021-03-26
Applicant: Cummins Inc.
Inventor： John L. Hoehne , Paul Daniel Borisuk , Boopathi Singalandapuram Mahadevan , Joshua A. Lantz , Jeffrey W. Lewis , Snita Navnith Menon
Abstract: A controller for removing deposits in a vehicle is disclosed. The controller includes at least one processor and a memory storing instructions therein that, when executed by the at least one processor, cause the at least one processor to: determine an amount of deposits accumulated in the vehicle based on an amount of time; determine a combustion target for the vehicle in response to determining that the amount of deposits exceeds a deposit threshold; and modulate a fluid flow of the vehicle based on the determined combustion target.
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公开(公告)号：US11591944B2
公开(公告)日：2023-02-28
申请号：US17214524
申请日：2021-03-26
Applicant: Cummins Inc.
Inventor： John L. Hoehne , Paul Daniel Borisuk , Boopathi Singalandapuram Mahadevan , Joshua A. Lantz , Jeffrey W. Lewis , Snita Navnith Menon
Abstract: A controller for removing deposits in a vehicle is disclosed. The controller includes at least one processor and a memory storing instructions therein that, when executed by the at least one processor, cause the at least one processor to: determine an amount of deposits accumulated in the vehicle based on an amount of time; determine a combustion target for the vehicle in response to determining that the amount of deposits exceeds a deposit threshold; and modulate a fluid flow of the vehicle based on the determined combustion target.
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公开(公告)号：US10961889B2
公开(公告)日：2021-03-30
申请号：US16320844
申请日：2017-07-27
Applicant: Cummins Inc.
Inventor： John L. Hoehne , Paul Daniel Borisuk , Boopathi Singalandapuram Mahadevan , Joshua A. Lantz , Jeffrey W. Lewis , Snita Navnith Menon
Abstract: Systems and methods for removing deposit in an aftertreatment system for an engine are disclosed herein. The method comprises determining an amount of deposits accumulated in the aftertreatment system, determining combustion targets for the engine in response to determining the amount of deposits exceeds a deposit threshold, and modulating an air mass flow for the engine based on the determined combustion targets. The air mass flow can be modulated by changing the position of the wastegate or the geometry of the variable geometry turbine (VGT).
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Patent Agency Ranking
公开(公告)号：US11898480B2
公开(公告)日：2024-02-13
申请号：US17902241
申请日：2022-09-02
Applicant: Cummins Inc.
Inventor： Todd C. Bouws , Ankit Raghunath Lad , Joshua A. Lantz , Boopathi Singalandapuram Mahadevan , Ian W. McGiffen , Douglas A. Roxbury
CPC classification number: F01N3/025 , F01N3/24 , F01N9/002 , F01N13/009 , F02D41/04 , F02D41/16 , F01N2900/1606 , F02D2200/0812
Abstract: Systems and methods for removing accumulated soot in an aftertreatment system are disclosed herein. A method includes: determining, by a controller, an adsorption amount of soot in an exhaust aftertreatment system; comparing, by the controller, the adsorption amount of soot to a predefined adsorption amount limit; in response to the adsorption amount exceeding the predefined adsorption amount limit, initiating, by the controller, an exhaust cleaning event to remove at least some accumulated soot in the exhaust aftertreatment system; receiving, by the controller, exhaust gas data during the exhaust cleaning event; determining, by the controller, a desorption amount of soot based on the exhaust gas data; comparing, by the controller, the desorption amount of soot to a predefined desorption limit; and ceasing, by the controller, the exhaust cleaning event based on the comparison.
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公开(公告)号：US20220412238A1
公开(公告)日：2022-12-29
申请号：US17902241
申请日：2022-09-02
Applicant: Cummins Inc.
Inventor： Todd C. Bouws , Ankit Raghunath Lad , Joshua A. Lantz , Boopathi Singalandapuram Mahadevan , Ian W. McGiffen , Douglas A. Roxbury
Abstract: Systems and methods for removing accumulated soot in an aftertreatment system are disclosed herein. A method includes: determining, by a controller, an adsorption amount of soot in an exhaust aftertreatment system; comparing, by the controller, the adsorption amount of soot to a predefined adsorption amount limit; in response to the adsorption amount exceeding the predefined adsorption amount limit, initiating, by the controller, an exhaust cleaning event to remove at least some accumulated soot in the exhaust aftertreatment system; receiving, by the controller, exhaust gas data during the exhaust cleaning event; determining, by the controller, a desorption amount of soot based on the exhaust gas data; comparing, by the controller, the desorption amount of soot to a predefined desorption limit; and ceasing, by the controller, the exhaust cleaning event based on the comparison.
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公开(公告)号：US12221913B2
公开(公告)日：2025-02-11
申请号：US18402682
申请日：2024-01-02
Applicant: Cummins Inc.
Inventor： Todd C. Bouws , Ankit Raghunath Lad , Joshua A. Lantz , Boopathi Singalandapuram Mahadevan , Ian W. McGiffen , Douglas A. Roxbury
Abstract: Systems and methods for removing soot in an aftertreatment system are disclosed. A method includes: receiving data regarding an exhaust gas flow rate of exhaust gas; receiving data regarding a selective catalytic reduction (SCR) inlet temperature; determining an adsorption amount of soot in the exhaust aftertreatment system based on the exhaust gas flow rate of the exhaust gas and the SCR inlet temperature; comparing the adsorption amount of soot to a predefined adsorption amount limit; in response to the adsorption amount of soot exceeding the predefined adsorption amount limit; initiating an exhaust cleaning event to remove at least some accumulated soot in the exhaust aftertreatment system; receiving exhaust gas data during the exhaust cleaning event; determining a desorption amount of soot based on the exhaust gas data; comparing the desorption amount of soot to a predefined desorption limit; and ceasing the exhaust cleaning event based on the comparison.
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公开(公告)号：US11434797B2
公开(公告)日：2022-09-06
申请号：US16608295
申请日：2018-04-25
Applicant: Cummins Inc.
Inventor： Todd C. Bouws , Ankit Raghunath Lad , Joshua A. Lantz , Boopathi Singalandapuram Mahadevan , Ian W. McGiffen , Douglas A. Roxbury
Abstract: Systems and methods for removing accumulated soot in an aftertreatment system for an engine are disclosed herein. A method includes receiving an indication that an engine of a vehicle has been operating in a low load condition for more than a predefined amount of time; in response, determining an adsorption rate of soot in an exhaust aftertreatment system of the vehicle; determining an adsorption amount of soot based on the adsorption rate for a predefined amount of time; comparing the adsorption amount to a predefine adsorption amount limit; and in response to the adsorption amount exceeding the predefined adsorption amount limit, initiating an exhaust cleaning event to remove at least some of the accumulated soot in the exhaust aftertreatment system.
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10.发明申请公开(公告)号：US20200095912A1
公开(公告)日：2020-03-26
申请号：US16608295
申请日：2018-04-25
Applicant: Cummins Inc.
Inventor： Todd C. Bouws , Ankit Raghunath Lad , Joshua A. Lantz , Boopathi Singalandapuram Mahadevan , Ian W. McGiffen , Douglas A. Roxbury
Abstract: Systems and methods for removing accumulated soot in an aftertreatment system for an engine are disclosed herein. A method includes receiving an indication that an engine of a vehicle has been operating in a low load condition for more than a predefined amount of time; in response, determining an adsorption rate of soot in an exhaust aftertreatment system of the vehicle; determining an adsorption amount of soot based on the adsorption rate for a predefined amount of time; comparing the adsorption amount to a predefine adsorption amount limit; and in response to the adsorption amount exceeding the predefined adsorption amount limit, initiating an exhaust cleaning event to remove at least some of the accumulated soot in the exhaust aftertreatment system.
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