-
公开(公告)号：US11333054B2
公开(公告)日：2022-05-17
申请号：US16497438
申请日：2018-03-27
Applicant: CUMMINS INC.
Inventor： Lars Krister Henrichsen , Krishna P. Chilumukuru , Michael Haas , Mathew L. Anderson
Abstract: An exhaust aftertreatment device includes a housing defining an inlet and an outlet. A plurality of first substrate layers are positioned within the housing in fluid receiving communication with the inlet. The plurality of first substrate layers define a first flow direction, and the plurality of first substrate layers comprise a passive NOx adsorber washcoat. A plurality of second substrate layers are positioned within the housing with the first and second substrate layers being layered in alternating order. The plurality of second substrate layers define a second flow direction perpendicular to the first flow direction, and the plurality of second substrate layers comprise a selective catalytic reduction washcoat. A connecting passage is in fluid receiving communication with the plurality of first substrate layers and in fluid providing communication with the plurality of second substrate layers.
-
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.
-
公开(公告)号：US20190299974A1
公开(公告)日：2019-10-03
申请号：US16371890
申请日：2019-04-01
Applicant: Cummins Inc.
Inventor： Jeffrey S. Rauch , Jennifer Kay Light-Holets , Michael Haas
Abstract: Systems and methods to control operation of a system based on aftertreatment interaction include a controller structured to receive one or more parameters associated with an exhaust aftertreatment system of an electric vehicle, where the one or more parameters are associated with an aftertreatment event associated with the aftertreatment system, determine an operation state of the system based on the one or more parameters, and generate a command structured to adjust operation of the system responsive to the determination of the operation state.
-
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.
-
15.发明申请TECHNIQUES FOR CONTROL OF AN SCR AFTERTREATMENT SYSTEM IN RESPONSE TO AN AMMONIA SLIP CONDITION 审中-公开用于控制可控硅后处理系统对氨基酸滑移条件的控制技术公开(公告)号：US20160290201A1
公开(公告)日：2016-10-06
申请号：US15187061
申请日：2016-06-20
Applicant: Cummins Inc.
Inventor： Michael Haas
Abstract: An exhaust aftertreatment system includes a selective catalytic reduction (SCR) catalyst is disposed in an exhaust gas system of an internal combustion engine. A reductant injector is coupled to the exhaust gas stream at a position upstream of the SCR catalyst. A controller is configured to determine an NH3 slip condition and control operation of the exhaust aftertreatment system in response to the NH3 slip condition to improve deNOx efficiency and reduce NH3 slip.
Abstract translation: 排气后处理系统包括选择性催化还原（SCR）催化剂设置在内燃机的排气系统中。 还原剂注入器在SCR催化剂上游的位置与废气流相连。 控制器被配置为响应于NH 3滑移条件来确定NH3滑移条件和排气后处理系统的控制操作，以提高脱硝效率并减少NH3滑移。
-
Patent Agency Ranking
公开(公告)号：US12175813B2
公开(公告)日：2024-12-24
申请号：US18371183
申请日：2023-09-21
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.
-
公开(公告)号：US12131595B2
公开(公告)日：2024-10-29
申请号：US17762717
申请日：2020-09-22
Applicant: Cummins Inc.
Inventor： Rohan Achyut Gumaste , Michael Haas , Tara L. Hemami , Krithika Mohan , Veronica Susan Perks , Shakti Saurabh , Jeffrey David Selwyn Diwakar Abraham
IPC: G07C5/08 , G06F30/20 , G06F119/02
CPC classification number: G07C5/0808 , G06F30/20 , G07C5/0816 , G06F2119/02
Abstract: A computing system is structured to receive operating data provided by a telematics circuit associated with a remote engine. The operating data comprises information provided by at least one sensor and/or at least one actuation command. The computing system is structured to determine, based on the operating data, a plurality of field-replaceable units (FRUs) associated with the operating data. The computing system is structured to generate a computer-based simulation corresponding to at least one degradation level for an FRU from the plurality of FRUs, identify a most probable failure, and rank the computer-based simulations across the plurality of FRUs. The computing system is structured to generate an electronic notification comprising data associated with the most probable failure and transmit the electronic notification to a computing device.
-
公开(公告)号：US20240052766A1
公开(公告)日：2024-02-15
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
CPC classification number: F01N3/208 , F01N13/0093 , F01N9/005 , F01N3/108 , F01N2900/0406
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.
-
公开(公告)号：US20240013594A1
公开(公告)日：2024-01-11
申请号：US18371183
申请日：2023-09-21
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 , G07C5/085 , G07C5/0816 , F02M35/10222 , F02M26/02 , F02B37/24 , B60R16/0234 , G07C5/008
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.
-
公开(公告)号：US11725564B2
公开(公告)日：2023-08-15
申请号：US16989109
申请日：2020-08-10
Applicant: Cummins Inc.
Inventor： Aniket Gupta , Michael J. Cunningham , Michael Haas , Govindarajan Kothandaraman
CPC classification number: F01N11/00 , F01N3/035 , F01N3/0835 , F01N3/0842 , F01N3/103 , F01N3/2066 , F01N13/0093 , F01N2550/02 , F01N2560/021 , F01N2560/026 , F01N2560/06 , F01N2560/14 , F01N2610/02 , F01N2900/1402 , F01N2900/1616 , F01N2900/1621 , Y02T10/12 , Y02T10/40
Abstract: A method includes acquiring nitrogen oxide (NOx) data indicative of a first amount of NOx in an exhaust flow exiting an engine and a second amount of NOx in the exhaust flow exiting an exhaust aftertreatment system coupled to the engine where the exhaust aftertreatment system including a selective catalytic reduction (SCR) system including a SCR catalyst; determining a NOx conversion efficiency fault is present within the exhaust aftertreatment system based on the first amount of NOx and the second amount of NOx; monitoring an actual amount of NOx in the exhaust flow downstream of the SCR catalyst; determining an expected amount of NOx downstream of the SCR catalyst; and determining the SCR catalyst is responsible for the NOx conversion efficiency fault in response to the actual amount of NOx differing from the expected amount of NOx by more than a threshold amount.
-
-
-
-
-
-
-
-
-
Search Results
59
records
(took 0.017 seconds)
