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公开(公告)号：US12241398B2
公开(公告)日：2025-03-04
申请号：US18268054
申请日：2021-12-17
Applicant: Cummins Inc.
Inventor： Michael Haas , Adam W. Kidd , Oxford Peng , Shahidur M. Rahman , Ananth Vemuri , Christophe Tricaud , Easwar Yarrabikki
Abstract: A system includes an aftertreatment system and a controller coupled to the aftertreatment system. The controller is configured to generate a spatially resolved model of a catalyst of the aftertreatment system. The controller is further configured to adjust the spatially resolved model based on one or more sensed values from at least one sensor upstream of the one or more portions and at least one sensor downstream of the one or more portions.
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公开(公告)号：US10302034B2
公开(公告)日：2019-05-28
申请号：US15416622
申请日：2017-01-26
Applicant: Cummins Inc.
Inventor： Adam W. Kidd , Hoseinali Borhan , Bibin N. Pattel , Edmund P. Hodzen , Michael Haas , Jeffrey Diwakar Abraham , Bryon D. Staebler
Abstract: One exemplary embodiment is a method of operating a system comprising an internal combustion engine system, and an exhaust aftertreatment system comprising an SCR catalyst, and an electronic control system. The method comprises operating the electronic control system to perform the acts of determining a predicted temperature value indicative of a predicted future temperature of the SCR catalyst, determining a temperature profile value using the predicted temperature value and a current temperature value indicative of a current temperature of the SCR catalyst, operating a controller to provide an output indicating a difference between the temperature profile value and a temperature target, determining a heat request using the output of the controller, filtering the heat request using a prediction horizon, and controlling operation of the engine system using the filtered heat request to increase a temperature of the SCR catalyst.
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公开(公告)号：US10995647B2
公开(公告)日：2021-05-04
申请号：US15776342
申请日：2016-11-15
Applicant: Cummins, Inc.
Inventor： Adam W. Kidd , Michael Haas
Abstract: An apparatus includes an exhaust analysis circuit and a sensor diagnostics circuit. The exhaust analysis circuit is structured to interpret first oxygen data acquired by a first sensor indicative of a first amount of oxygen in an exhaust flow at a first location along an exhaust aftertreatment system, and interpret second oxygen data acquired by a second sensor indicative of a second amount of oxygen in the exhaust flow at a second location along the exhaust aftertreatment system. The sensor diagnostic circuit is structured to determine at least one of the first sensor and the second sensor are faulty based on the first amount of oxygen and the second amount of oxygen differing more than a threshold value.
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4.发明申请公开(公告)号：US20200300190A1
公开(公告)日：2020-09-24
申请号：US16871659
申请日：2020-05-11
Applicant: Cummins Inc.
Inventor： Jeffrey David Selwyn Diwakar Abraham , Ananth Vemuri , Michael Haas , Adam W. Kidd
Abstract: A method, system, and apparatus relating to operating an internal combustion engine include steps or features for determining a performance threshold of a particulate filter disposed in an exhaust gas flow of the engine having a set time interval between regeneration events of the particulate filter; determining a rate at which the particulate filter is reaching the performance threshold; and controlling an exhaust gas characteristic to control the rate so that the performance threshold is reached at or just before an end of the time interval. In an embodiment, there are steps or features for interpreting a filter condition of the particulate filter; determining a particulate matter load rate of the filter as a function of the condition; determining a limit of an exhaust gas characteristic based on the load rate; and controlling engine operation to control the exhaust gas characteristic to satisfy the limit.
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公开(公告)号：US20250095421A1
公开(公告)日：2025-03-20
申请号：US18959435
申请日：2024-11-25
Applicant: Cummins Inc.
Inventor： Jeffrey Diwakar Abraham , Marcela Schmalz de Bernardi , Avra Brahma , Timothy J. Greis , Michael Haas , Gregory H. Henderson , Adam W. Kidd , Lyle E. Kocher , Krithika Mohan , Daniel J. Smith , Christophe Tricaud , Ananth Vemuri , Easwar Yarrabikki
Abstract: A system is configured to store a relationship data set of a plurality of diagnostic estimators and a plurality of failure modes, each failure mode represents a type of failure that can occur with a sensor or a vehicle component of a vehicle system, each diagnostic estimator is associated with a respective subset of the failure modes, each subset defines a control space within the vehicle system that contains at least one of (i) one or more sensors or (ii) one or more vehicle components. The system is configured to store a healthy diagnostic vector regarding nominal operational parameters of the vehicle system; acquire diagnostic information regarding current operational parameters of the vehicle system to generate an error diagnostic vector; apply the error diagnostic vector to the healthy diagnostic vector to generate a ratio diagnostic vector; and apply the ratio diagnostic vector to generate a value for each failure mode.
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Patent Agency Ranking
公开(公告)号：US11798325B2
公开(公告)日：2023-10-24
申请号：US17247383
申请日：2020-12-09
Applicant: Cummins Inc.
Inventor： Jeffrey Diwakar Abraham , Marcela Schmalz de Bernardi , Avra Brahma , Timothy J. Greis , Michael Haas , Gregory H. Henderson , Adam W. Kidd , Lyle E. Kocher , Krithika Mohan , Daniel J. Smith , Christophe Tricaud , Ananth Vemuri , Easwar Yarrabikki
CPC classification number: G07C5/0808 , B60R16/0234 , F02B37/24 , F02M26/02 , F02M35/10222 , G07C5/008 , G07C5/085 , G07C5/0816
Abstract: A system includes a controller configured to store a relationship matrix of a plurality of diagnostic estimators and a plurality of failure modes, each failure mode represents a type of failure that can occur with (i) a sensor or (ii) a vehicle component of a vehicle system, each diagnostic estimator is associated with a respective subset of the failure modes, each respective subset defines a control volume within the vehicle system that contains at least one of (i) one or more sensors or (ii) one or more vehicle components; store a healthy diagnostic vector regarding nominal operational parameters of the vehicle system; acquire diagnostic information regarding current operational parameters of the vehicle system to generate an error diagnostic vector; divide the error diagnostic vector by the healthy diagnostic vector to generate a ratio diagnostic vector; multiply the ratio diagnostic vector with the relationship matrix to generate a value for each failure mode.
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公开(公告)号：US20210254534A1
公开(公告)日：2021-08-19
申请号：US17246893
申请日：2021-05-03
Applicant: Cummins, Inc.
Inventor： Adam W. Kidd , Michael Haas
IPC: F01N11/00
Abstract: A method includes: interpreting first oxygen data acquired by a first nitrous oxide (NOx) sensor indicative of a first amount of oxygen in an exhaust flow at a location in or proximate to an exhaust aftertreatment system, wherein the exhaust aftertreatment system is in exhaust gas receiving communication with an engine; estimating an amount of oxygen in the exhaust flow entering the exhaust aftertreatment system from the engine based on engine operation data; and, determining that the NOx sensor is faulty based on determining that a difference between the first amount of oxygen and the estimated amount of oxygen is greater than a threshold value.
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公开(公告)号：US20170211493A1
公开(公告)日：2017-07-27
申请号：US15416622
申请日：2017-01-26
Applicant: Cummins Inc.
Inventor： Adam W. Kidd , Hoseinali Borhan , Bibin N. Pattel , Edmund P. Hodzen , Michael Haas , Jeffrey Diwakar Abraham , Bryon D. Staebler
CPC classification number: F02D41/025 , B01D53/9418 , B01D53/9477 , B01D53/9495 , F01N3/208 , F01N2590/11 , F01N2610/02 , F01N2900/0404 , F01N2900/0408 , F01N2900/0601 , F01N2900/0602 , F01N2900/10 , F01N2900/12 , F01N2900/1602 , F02D41/024 , F02D41/1401 , F02D41/1402 , F02D41/3005 , F02D2041/1409 , F02D2041/1432 , F02D2200/0804 , F02D2200/101 , F02D2200/501 , F02D2200/701 , F02D2200/702 , Y02A50/2325 , Y02T10/24 , Y02T10/26
Abstract: One exemplary embodiment is a method of operating a system comprising an internal combustion engine system, and an exhaust aftertreatment system comprising an SCR catalyst, and an electronic control system. The method comprises operating the electronic control system to perform the acts of determining a predicted temperature value indicative of a predicted future temperature of the SCR catalyst, determining a temperature profile value using the predicted temperature value and a current temperature value indicative of a current temperature of the SCR catalyst, operating a controller to provide an output indicating a difference between the temperature profile value and a temperature target, determining a heat request using the output of the controller, filtering the heat request using a prediction horizon, and controlling operation of the engine system using the filtered heat request to increase a temperature of the SCR catalyst.
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公开(公告)号：US11499468B2
公开(公告)日：2022-11-15
申请号：US17246893
申请日：2021-05-03
Applicant: Cummins, Inc.
Inventor： Adam W. Kidd , Michael Haas
Abstract: A method includes: interpreting first oxygen data acquired by a first nitrous oxide (NOx) sensor indicative of a first amount of oxygen in an exhaust flow at a location in or proximate to an exhaust aftertreatment system, wherein the exhaust aftertreatment system is in exhaust gas receiving communication with an engine; estimating an amount of oxygen in the exhaust flow entering the exhaust aftertreatment system from the engine based on engine operation data; and, determining that the NOx sensor is faulty based on determining that a difference between the first amount of oxygen and the estimated amount of oxygen is greater than a threshold value.
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10.发明申请公开(公告)号：US20210270177A1
公开(公告)日：2021-09-02
申请号：US17321853
申请日：2021-05-17
Applicant: Cummins Inc.
Inventor： Jeffrey David Selwyn Diwakar Abraham , Ananth Vemuri , Michael Haas , Adam W. Kidd
Abstract: A method, system, and apparatus relating to operating an internal combustion engine include steps or features for determining a performance threshold of a particulate filter disposed in an exhaust gas flow of the engine having a set time interval between regeneration events of the particulate filter; determining a rate at which the particulate filter is reaching the performance threshold; and controlling an exhaust gas characteristic to control the rate so that the performance threshold is reached at or just before an end of the time interval. In an embodiment, there are steps or features for interpreting a filter condition of the particulate filter; determining a particulate matter load rate of the filter as a function of the condition; determining a limit of an exhaust gas characteristic based on the load rate; and controlling engine operation to control the exhaust gas characteristic to satisfy the limit.
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