Patents by Inventor Nassim Khaled
Nassim Khaled 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: 20170234200Abstract: An aftertreatment system comprises a reductant storage tank and a SCR system fluidly coupled thereto. A reductant physical level sensor and a tank temperature sensor are operatively coupled to the reductant storage tank. A controller is communicatively coupled with each of the sensors and configured to: interpret a first level output value from the physical level sensor and a first temperature output value from the tank temperature sensor. If the first level output value is below a first threshold, the controller determines if the first temperature output value is below a second threshold. If the first level output value is below the first threshold and the first temperature output value is below the second threshold, the controller determines a virtual reductant level in the reductant storage tank and indicates the virtual reductant level in lieu of a physical reductant level in the reductant storage tank to a user.Type: ApplicationFiled: May 2, 2017Publication date: August 17, 2017Inventors: Nassim Khaled, Bryce R. Larson, Sarang S. Sonawane, Tushar H. Sharma
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Patent number: 9664083Abstract: An aftertreatment system comprises a reductant storage tank and a SCR system fluidly coupled thereto. A reductant physical level sensor and a tank temperature sensor are operatively coupled to the reductant storage tank. A controller is communicatively coupled with each of the sensors and configured to: interpret a first level output value from the physical level sensor and a first temperature output value from the tank temperature sensor. If the first level output value is below a first threshold, the controller determines if the first temperature output value is below a second threshold. If the first level output value is below the first threshold and the first temperature output value is below the second threshold, the controller determines a virtual reductant level in the reductant storage tank and indicates the virtual reductant level in lieu of a physical reductant level in the reductant storage tank to a user.Type: GrantFiled: August 14, 2015Date of Patent: May 30, 2017Assignee: CUMMINS EMISSION SOLUTIONS INC.Inventors: Nassim Khaled, Bryce R. Larson, Sarang S. Sonawane, Tushar H. Sharma
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Patent number: 9599005Abstract: An apparatus, system, and method are provided for determining a health value of a catalyzed diesel particulate filter using a midbed temperature of the catalyzed diesel particulate filter and a reference temperature.Type: GrantFiled: October 1, 2013Date of Patent: March 21, 2017Assignee: Cummins Inc.Inventors: Nassim Khaled, Richard A. Booth
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Publication number: 20170067387Abstract: An aftertreatment system comprises a first SCR system, a second SCR system positioned downstream of the SCR system and a reductant storage tank. At least one reductant insertion assembly is fluidly coupled to the reductant storage tank. The at least one reductant insertion assembly is also fluidly coupled to the first SCR system and the SCR system. A controller is communicatively coupled to the reductant insertion assembly. The controller is configured to instruct the reductant insertion assembly to asynchronously insert the reductant into the first SCR system and the second SCR system.Type: ApplicationFiled: September 9, 2015Publication date: March 9, 2017Applicant: Cummins Emission Solutions Inc.Inventor: Nassim Khaled
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Publication number: 20170044949Abstract: An aftertreatment system comprises a reductant storage tank and a SCR system fluidly coupled thereto. A reductant physical level sensor and a tank temperature sensor are operatively coupled to the reductant storage tank. A controller is communicatively coupled with each of the sensors and configured to: interpret a first level output value from the physical level sensor and a first temperature output value from the tank temperature sensor. If the first level output value is below a first threshold, the controller determines if the first temperature output value is below a second threshold. If the first level output value is below the first threshold and the first temperature output value is below the second threshold, the controller determines a virtual reductant level in the reductant storage tank and indicates the virtual reductant level in lieu of a physical reductant level in the reductant storage tank to a user.Type: ApplicationFiled: August 14, 2015Publication date: February 16, 2017Applicant: Cummins Emission Solutions Inc.Inventors: Nassim Khaled, Bryce R. Larson, Sarang S. Sonawane, Tushar H. Sharma
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Publication number: 20170022865Abstract: Implementations described herein relate to utilizing discrete transient local state space models to modify an output from a steady state NOx estimation model to provide a final estimated NOx value. An engine operating space, defined by a speed and injection quantity map, is subdivided into several discrete local state spaces and a transient model is developed for each discrete state space to output a NOx estimation correction value. The transient models may be a regression model or the transient model may be an empirical map of data values. The NOx estimation correction value modifies a steady state NOx value to calculate the final NOx estimated value. The final NOx estimated value is then output to another component, such as a controller as an input for controlling one or more components of an engine, an aftertreatment system, and/or a diagnostic system.Type: ApplicationFiled: July 22, 2016Publication date: January 26, 2017Applicant: Cummins Emission Solutions Inc.Inventors: Nassim KHALED, Priya NAIK
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Patent number: 9482169Abstract: System, apparatus, and methods are disclosed for a computing a first set of parameters based on operational states of an internal combustion engine and an air handling system, a second set of parameters based on a linear time varying model, and one or more control commands based upon a minimization or maximization of a cost function over a prediction horizon, the second set of parameters, and at least one physical constraint of the internal combustion engine, and controlling one or more operations based at least in part upon the one or more control commands. The acts of determining the first and second set of parameters and computing the one or more control commands are repeated over a plurality of time periods over which the first set of parameters and the second set of parameters are time variant.Type: GrantFiled: July 23, 2014Date of Patent: November 1, 2016Assignee: Cummins Inc.Inventors: Edmund P. Hodzen, Nassim Khaled, Phanindra Garamella, Hoseinali Borhan
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Patent number: 9366215Abstract: Disclosed are methods, systems, and computer-readable mediums for predicting a driving intention of a driver of a vehicle. A sequence comprising a plurality of indicators is detected, where each indicator suggests intent to drive a vehicle. A separation time between each of the indicators of the sequence is determined. The sequence and determined separation times are compared to historical data, where the historical data comprises data related to previously stored separation times of the sequence. Based on the comparison, a confidence level that an engine of the vehicle will be started is determined. Based on the confidence level, a feature of the vehicle is activated.Type: GrantFiled: June 18, 2014Date of Patent: June 14, 2016Assignee: Cummins, Inc.Inventors: Michael J. Cunningham, Govindarajan Kothandaraman, Nassim Khaled, Yu Liu, Aniket Gupta
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Patent number: 9273587Abstract: According to one embodiment, an apparatus is disclosed for diagnosing a condition of a component of an exhaust aftertreatment system in exhaust receiving communication with an internal combustion engine where the exhaust aftertreatment system includes a selective catalytic reduction (SCR) catalyst. The diagnostic module is configured to determine a normalized tailpipe nitrogen-oxide NOx value based on a tailpipe NOx sensor signal and a ratio of an SCR inlet ammonia (NH3) flow rate to an SCR inlet NOx flow rate. The apparatus also includes a component condition module configured to determine a condition of the component based on the normalized tailpipe NOx value.Type: GrantFiled: January 28, 2013Date of Patent: March 1, 2016Assignee: Cummins IP, Inc.Inventors: Nassim Khaled, Richard Booth
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Publication number: 20160040580Abstract: A system for diagnosing a sensor of an exhaust aftertreatment system may include receiving a first tank level value from a sensor. A plurality of reductant dosing command values over a period of time are received. A dosed reductant value is determined responsive to the plurality of reductant dosing command values reaching a threshold integrated value. A second tank level value is received from the sensor responsive to the dosed reductant value reaching the threshold integrated value. A sensor-estimated dosing value is determined based on the difference between the first tank level value and the second tank level value. The sensor may be diagnosed as performing outside of an acceptable calibration range based on the difference between the sensor-estimated dosing value and the dosed reductant value.Type: ApplicationFiled: October 31, 2014Publication date: February 11, 2016Applicant: Cummins Emission Solutions, Inc.Inventors: Nassim Khaled, Vinayak Mandavkar, Deepu Chandy
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Publication number: 20160025020Abstract: System, apparatus, and methods are disclosed for a computing a first set of parameters based on operational states of an internal combustion engine and an air handling system, a second set of parameters based on a linear time varying model, and one or more control commands based upon a minimization or maximization of a cost function over a prediction horizon, the second set of parameters, and at least one physical constraint of the internal combustion engine, and controlling one or more operations based at least in part upon the one or more control commands. The acts of determining the first and second set of parameters and computing the one or more control commands are repeated over a plurality of time periods over which the first set of parameters and the second set of parameters are time variant.Type: ApplicationFiled: July 23, 2014Publication date: January 28, 2016Inventors: Edmund P. Hodzen, Nassim Khaled, Phanindra Garamella, Hoseinali Borhan
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Publication number: 20150369197Abstract: Disclosed are methods, systems, and computer-readable mediums for predicting a driving intention of a driver of a vehicle. A sequence comprising a plurality of indicators is detected, where each indicator suggests intent to drive a vehicle. A separation time between each of the indicators of the sequence is determined. The sequence and determined separation times are compared to historical data, where the historical data comprises data related to previously stored separation times of the sequence. Based on the comparison, a confidence level that an engine of the vehicle will be started is determined. Based on the confidence level, a feature of the vehicle is activated.Type: ApplicationFiled: June 18, 2014Publication date: December 24, 2015Inventors: Michael J. Cunningham, Govindarajan Kothandaraman, Nassim Khaled, Yu Liu, Aniket Gupta
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Patent number: 9213336Abstract: A computer implemented method for guiding an under-actuated marine surface vessel in tracking a desired trajectory comprises expressing a predetermined vessel trajectory as a set of straight line segments, determining a desired current line segment, and determining the vessel's current position. A cross-track error and the derivative of the cross-track error are then determined. Next, a radius R of the line-of-sight (LOS) circle using a newly introduced exponential function is determined. Intersection points M and N between the LOS circle and the current desired line segment are determined. A desired heading angle is determined as the angle between the line of sight and a predetermined fixed reference line. A drift detection algorithm is built into the proposed guidance scheme to detect situations whereby the ship moves parallel to its desired trajectory for an extended period of time without being able to correct for the cross track error.Type: GrantFiled: September 12, 2011Date of Patent: December 15, 2015Assignee: Wayne State UniversityInventors: Nabil Chalhoub, Nassim Khaled
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Patent number: 9038369Abstract: Methods and systems for diagnosing inadequate performance and/or degradation of one or more components of an aftertreatment system are disclosed, the components including at least an oxidation catalyst that is positioned upstream from an SCR catalyst. A performance degradation analysis of the oxidation catalyst is based on a comparison of measurements received from a first nitrous oxide (NOx) sensor located upstream of the oxidation catalyst and a second NOx sensor located downstream from the oxidation catalyst.Type: GrantFiled: February 13, 2013Date of Patent: May 26, 2015Assignee: Cummins Inc.Inventors: Nassim Khaled, Richard A. Booth
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Publication number: 20150092809Abstract: An apparatus, system, and method are provided for determining a health value of a catalyzed diesel particulate filter using a midbed temperature of the catalyzed diesel particulate filter and a reference temperature.Type: ApplicationFiled: October 1, 2013Publication date: April 2, 2015Applicant: Cummins Inc.Inventors: Nassim Khaled, Richard A. Booth
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Publication number: 20140223886Abstract: Methods and systems for diagnosing inadequate performance and/or degradation of one or more components of an aftertreatment system are disclosed, the components including at least an oxidation catalyst that is positioned upstream from an SCR catalyst. A performance degradation analysis of the oxidation catalyst is based on a comparison of measurements received from a first nitrous oxide (NOx) sensor located upstream of the oxidation catalyst and a second NOx sensor located downstream from the oxidation catalyst.Type: ApplicationFiled: February 13, 2013Publication date: August 14, 2014Applicant: Cummins Inc.Inventors: Nassim Khaled, Richard A. Booth
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Publication number: 20140208721Abstract: According to one embodiment, an apparatus is disclosed for diagnosing a condition of a component of an exhaust aftertreatment system in exhaust receiving communication with an internal combustion engine where the exhaust aftertreatment system includes a selective catalytic reduction (SCR) catalyst. The diagnostic module is configured to determine a normalized tailpipe nitrogen-oxide NOx value based on a tailpipe NOx sensor signal and a ratio of an SCR inlet ammonia (NH3) flow rate to an SCR inlet NOx flow rate. The apparatus also includes a component condition module configured to determine a condition of the component based on the normalized tailpipe NOx value.Type: ApplicationFiled: January 28, 2013Publication date: July 31, 2014Applicant: CUMMINS IP, INC.Inventors: Nassim Khaled, Richard Booth
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Publication number: 20130173096Abstract: A computer implemented method for guiding an under-actuated marine surface vessel in tracking a desired trajectory comprises expressing a predetermined vessel trajectory as a set of straight line segments, determining a desired current line segment, and determining the vessel's current position. A cross-track error and the derivative of the cross-track error are then determined. Next, a radius R of the line-of-sight (LOS) circle using a newly introduced exponential function is determined. Intersection points M and N between the LOS circle and the current desired line segment are determined. A desired heading angle is determined as the angle between the line of sight and a predetermined fixed reference line. A drift detection algorithm is built into the proposed guidance scheme to detect situations whereby the ship moves parallel to its desired trajectory for an extended period of time without being able to correct for the cross track error.Type: ApplicationFiled: September 12, 2011Publication date: July 4, 2013Applicant: WAYNE STATE UNIVERSITYInventors: Nabil Chalhoub, Nassim Khaled