Patents by Inventor Arun Shori Sundaravel
Arun Shori Sundaravel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250052185Abstract: Systems and methods for diagnosing an exhaust aftertreatment system and mitigating the effects of a potential fault in the exhaust aftertreatment system are provided. A system includes: a sensor structured to provide exhaust gas constituent information, and one or more processing circuits configured to: receive information indicative of an amount of at least one of a gain or an offset affecting the sensor; determine a compensation gain value and a compensation offset value; receive the exhaust gas constituent information; apply the compensation gain value to the exhaust gas constituent information to create compensated information when the compensation gain value is less than a first threshold, the compensation offset value is less than a second threshold and the compensation gain value is less than the compensation offset value; and initiate an action based on the compensated information.Type: ApplicationFiled: October 29, 2024Publication date: February 13, 2025Applicant: Cummins Inc.Inventors: Arun Shori Sundaravel Damotharan, Rutika Kaustubh Gokhale
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Patent number: 12152517Abstract: Systems and methods for diagnosing an exhaust aftertreatment system and mitigating the effects of a potential fault in the exhaust aftertreatment system are provided. A method includes: receiving, by a controller, data indicative of an amount of at least one of a gain or an offset affecting a sensor in an aftertreatment system; determining, by the controller, a compensation value based on the amount of the at least one of the gain or the offset; receiving, by the controller, data indicative of an amount of an exhaust gas constituent in the aftertreatment system; applying, by the controller, the determined compensation value to the data indicative of the amount of the exhaust gas constituent in the aftertreatment system to create compensated data; and initiating, by the controller, an action based on the compensated data.Type: GrantFiled: March 10, 2022Date of Patent: November 26, 2024Assignee: Cummins Inc.Inventors: Arun Shori Sundaravel Damotharan, Rutika Kaustubh Gokhale
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Publication number: 20240295185Abstract: Systems and methods for diagnosing a sensor of an exhaust aftertreatment system can include a controller determining that an amount of an exhaust gas constituent at a particular location is expected to be at or below a predefined value for a period of time, and receiving data indicative of a sensed amount of the exhaust gas constituent from the sensor of the exhaust aftertreatment system during the period of time. The controller determines, based on the sensed amount of the exhaust gas constituent, an amount of offset affecting the sensor of the exhaust aftertreatment system, and initiates an action based on the determined amount of offset to diagnose the sensor.Type: ApplicationFiled: March 10, 2022Publication date: September 5, 2024Applicant: Cummins Inc.Inventors: Arun Shori Sundaravel Damotharan, Rutika Kaustubh Gokhale, Rakesh Mohanty
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Publication number: 20240271555Abstract: A controller to diagnose a selective catalytic reduction (SCR) system of an aftertreatment system executes computer-readable instructions to determine a first NOx value at an outlet of the SCR system, determine an ammonia (NH3) slip value based at least in part on the first NOx value, determine a second NOx value of a healthy SCR model, determine a third NOx value of a degraded SCR model, compute at least one degradation factor based on the ammonia slip, the first NOx value, the second NOx value, and the third NOx value, and diagnose a normal operation or an abnormal operation of the SCR system based on the at least one degradation factor.Type: ApplicationFiled: February 8, 2024Publication date: August 15, 2024Applicant: Cummins Emission Solutions Inc.Inventors: Ajita Gupta, Rakesh Mohanty, Michael Haas, Jinqian Gong, Arun Shori Sundaravel Damotharan
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Patent number: 12055114Abstract: Systems and methods for diagnosing an exhaust aftertreatment system are provided. A method includes: receiving, by a controller and for each sensor of a plurality of sensors, one or more respective degradation level indicators indicative of one or more failure levels of the sensor, each of the one or more degradation level indicators determined using a corresponding performance parameter; receiving, by the controller and for each sensor of the plurality of sensors, one or more diagnosis threshold values; determining, by the controller, a multipoint diagnosis threshold value using the one or more diagnosis threshold values associated with the plurality of sensors; detecting, by the controller, an operational state of the aftertreatment system by comparing a performance value of the aftertreatment system to the multipoint diagnosis threshold value; and causing, by the controller, an indication of the operational state of the aftertreatment system to be displayed on a display device.Type: GrantFiled: October 16, 2023Date of Patent: August 6, 2024Assignee: Cummins Inc.Inventors: Rutika Kaustubh Gokhale, Adrian Adolfo Jarrin, Arun Shori Sundaravel Damotharan
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Patent number: 12044155Abstract: A method for diagnosing a NOx sensor is provided. The method includes receiving data indicative of operating conditions of an engine or an aftertreatment system; determining, during a first period of time, that an amount of NOx output from the aftertreatment system satisfies a low NOx operating mode condition; determining, during a second period of time, that operating conditions for ammonia slip are present based on data regarding operation of the aftertreatment system; responsive to the determination that operating conditions for ammonia slip are present, determining that the amount of NOx output from the aftertreatment system satisfies a high NOx operating mode condition; comparing a difference between a minimum value from the first period of time and a maximum value from a second period of time to a diagnostic threshold; and responsive to the difference being less than the diagnostic threshold, setting an alert.Type: GrantFiled: May 27, 2021Date of Patent: July 23, 2024Assignee: Cummins Inc.Inventors: Arun Shori Sundaravel Damotharan, Sergio M. Hernandez-Gonzalez, Joshua Edward Supplee
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Publication number: 20240151175Abstract: Systems and methods for diagnosing an exhaust aftertreatment system and mitigating the effects of a potential fault in the exhaust aftertreatment system are provided. A method includes: receiving, by a controller, data indicative of an amount of at least one of a gain or an offset affecting a sensor in an aftertreatment system; determining, by the controller, a compensation value based on the amount of the at least one of the gain or the offset; receiving, by the controller, data indicative of an amount of an exhaust gas constituent in the aftertreatment system; applying, by the controller, the determined compensation value to the data indicative of the amount of the exhaust gas constituent in the aftertreatment system to create compensated data; and initiating, by the controller, an action based on the compensated data.Type: ApplicationFiled: March 10, 2022Publication date: May 9, 2024Applicant: Cummins Inc.Inventors: Arun Shori Sundaravel Damotharan, Rutika Kaustubh Gokhale
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Publication number: 20240035426Abstract: Systems and methods for diagnosing an exhaust aftertreatment system are provided. A method includes: receiving, by a controller and for each sensor of a plurality of sensors, one or more respective degradation level indicators indicative of one or more failure levels of the sensor, each of the one or more degradation level indicators determined using a corresponding performance parameter; receiving, by the controller and for each sensor of the plurality of sensors, one or more diagnosis threshold values; determining, by the controller, a multipoint diagnosis threshold value using the one or more diagnosis threshold values associated with the plurality of sensors; detecting, by the controller, an operational state of the aftertreatment system by comparing a performance value of the aftertreatment system to the multipoint diagnosis threshold value; and causing, by the controller, an indication of the operational state of the aftertreatment system to be displayed on a display device.Type: ApplicationFiled: October 16, 2023Publication date: February 1, 2024Applicant: Cummins Inc.Inventors: Rutika Kaustubh Gokhale, Adrian Adolfo Jarrin, Arun Shori Sundaravel Damotharan
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Patent number: 11815044Abstract: Systems and methods for diagnosing an exhaust aftertreatment system are provided. A controller determines, for each sensor of a plurality of sensors, one or more performance parameters based on measurement data obtained from the sensor that is indicative of a performance of the sensor or a component of the exhaust aftertreatment system. The controller determines, for each performance parameter, a corresponding degradation level indicator indicative of a performance degradation of the corresponding sensor or the corresponding component of the exhaust aftertreatment system. The controller can determine, for each degradation level indicator, a corresponding diagnosis threshold value for detecting an operational state of the corresponding sensor or the corresponding component of the exhaust aftertreatment system.Type: GrantFiled: June 9, 2022Date of Patent: November 14, 2023Assignee: Cummins Inc.Inventors: Rutika Kaustubh Gokhale, Adrian Adolfo Jarrin, Arun Shori Sundaravel Damotharan
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Publication number: 20230220794Abstract: A method for diagnosing a NOx sensor is provided. The method includes receiving data indicative of operating conditions of an engine or an aftertreatment system; determining, during a first period of time, that an amount of NOx output from the aftertreatment system satisfies a low NOx operating mode condition; determining, during a second period of time, that operating conditions for ammonia slip are present based on data regarding operation of the aftertreatment system; responsive to the determination that operating conditions for ammonia slip are present, determining that the amount of NOx output from the aftertreatment system satisfies a high NOx operating mode condition; comparing a difference between a minimum value from the first period of time and a maximum value from a second period of time to a diagnostic threshold; and responsive to the difference being less than the diagnostic threshold, setting an alert.Type: ApplicationFiled: May 27, 2021Publication date: July 13, 2023Applicant: Cummins Inc.Inventors: Arun Shori Sundaravel Damotharan, Sergio M. Hernandez-Gonzalez, Joshua Edward Supplee
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Patent number: 9677445Abstract: Systems and methods to selectively control plurality of dosing modules may include receiving data indicative of an exhaust flow rate. An amount of reductant to be dosed may be determined based, at least in part, on the data indicative of the exhaust flow rate. A decomposition delay time may also be determined and a first dosing module and a second dosing module may be selectively activated. The first dosing module may be selectively activated at a first time and the second dosing module is selectively activated at a second time. The second time is based on the first time and the determined decomposition delay time.Type: GrantFiled: December 13, 2016Date of Patent: June 13, 2017Assignee: Cummins Emission Solutions, Inc.Inventors: Rafael Nunez, Atul Abhyankar, Ken Hummel, Justin Kruer, Tyler Lorenz, Farshad Farid, Arun Shori Sundaravel
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Publication number: 20170089245Abstract: Systems and methods to selectively control plurality of dosing modules may include receiving data indicative of an exhaust flow rate. An amount of reductant to be dosed may be determined based, at least in part, on the data indicative of the exhaust flow rate. A decomposition delay time may also be determined and a first dosing module and a second dosing module may be selectively activated. The first dosing module may be selectively activated at a first time and the second dosing module is selectively activated at a second time. The second time is based on the first time and the determined decomposition delay time.Type: ApplicationFiled: December 13, 2016Publication date: March 30, 2017Applicant: Cummins Emission Solutions, Inc.Inventors: Rafael Nunez, Atul Abhyankar, Ken Hummel, Justin Kruer, Tyler Lorenz, Farshad Farid, Arun Shori Sundaravel
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Patent number: 9551251Abstract: Systems and methods to selectively control plurality of dosing modules may include receiving data indicative of an exhaust flow rate. An amount of reductant to be dosed may be determined based, at least in part, on the data indicative of the exhaust flow rate. A decomposition delay time may also be determined and a first dosing module and a second dosing module may be selectively activated. The first dosing module may be selectively activated at a first time and the second dosing module is selectively activated at a second time. The second time is based on the first time and the determined decomposition delay time.Type: GrantFiled: November 17, 2015Date of Patent: January 24, 2017Assignee: Cummins Emission Solutions, Inc.Inventors: Rafael Nunez, Atul Abhyankar, Ken Hummel, Justin Kruer, Tyler Lorenz, Farshad Farid, Arun Shori Sundaravel
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Publication number: 20160069237Abstract: Systems and methods to selectively control plurality of dosing modules may include receiving data indicative of an exhaust flow rate. An amount of reductant to be dosed may be determined based, at least in part, on the data indicative of the exhaust flow rate. A decomposition delay time may also be determined and a first dosing module and a second dosing module may be selectively activated. The first dosing module may be selectively activated at a first time and the second dosing module is selectively activated at a second time. The second time is based on the first time and the determined decomposition delay time.Type: ApplicationFiled: November 17, 2015Publication date: March 10, 2016Applicant: Cummins Emission Solutions, Inc.Inventors: Rafael Nunez, Atul Abhyankar, Ken Hummel, Justin Kruer, Tyler Lorenz, Farshad Farid, Arun Shori Sundaravel
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Patent number: 9192892Abstract: Systems and methods to selectively control plurality of dosing modules may include receiving data indicative of an exhaust flow rate. An amount of reductant to be dosed may be determined based, at least in part, on the data indicative of the exhaust flow rate. A decomposition delay time may also be determined and a first dosing module and a second dosing module may be selectively activated. The first dosing module may be selectively activated at a first time and the second dosing module is selectively activated at a second time. The second time is based on the first time and the determined decomposition delay time.Type: GrantFiled: January 16, 2014Date of Patent: November 24, 2015Assignee: Cummins Emission Solutions, Inc.Inventors: Rafael Nunez, Atul Abhyankar, Ken Hummel, Justin Kruer, Tyler Lorenz, Farshad Farid, Arun Shori Sundaravel
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Publication number: 20150196878Abstract: Systems and methods to selectively control plurality of dosing modules may include receiving data indicative of an exhaust flow rate. An amount of reductant to be dosed may be determined based, at least in part, on the data indicative of the exhaust flow rate. A decomposition delay time may also be determined and a first dosing module and a second dosing module may be selectively activated. The first dosing module may be selectively activated at a first time and the second dosing module is selectively activated at a second time. The second time is based on the first time and the determined decomposition delay time.Type: ApplicationFiled: January 16, 2014Publication date: July 16, 2015Applicant: Cummins Emission Solutions, Inc.Inventors: Rafael Nunez, Atul Abhyankar, Ken Hummel, Justin Kruer, Tyler Lorenz, Farshad Farid, Arun Shori Sundaravel