Patents by Inventor Agneya Turlapati
Agneya Turlapati 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: 20240167439Abstract: Control of an internal combustion engine system in response to a condensation condition associated with a charge air cooler is disclosed. One or more operating parameters of the internal combustion engine are monitored to the control charge air cooler coolant inlet temperature to keep the charge temperature above the estimated dew point to reduce or prevent condensation upstream of the intake manifold.Type: ApplicationFiled: November 17, 2022Publication date: May 23, 2024Inventors: Pallav Pathak, Robert J. Thomas, Andrew Guy Kitchen, Balaji Sampathnarayanan, Jisang Sun, Carlos Alcides Lana, Philipe F. Saad, Agneya Turlapati, Milan Khushal Visaria
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Publication number: 20240157277Abstract: A filtration system for a fuel cell hybrid propulsion system includes a first stage filter, a second stage filter positioned downstream of the first stage filter, and a third stage filter positioned downstream of the second stage filter and configured to be positioned upstream of a fuel cell system. The first stage filter has first pores with a first mean pore size. The second stage filter has second pores with a second mean pore size. The third stage filter has third pores with a third mean pore size. The second mean pore size is less than the first mean pore size. The third mean pore size is less than or equal to the second mean pore size. The first, second, and third stage filter are structured to filter an airflow prior to being received by the fuel cell system.Type: ApplicationFiled: April 18, 2023Publication date: May 16, 2024Applicant: Cummins Inc.Inventors: Richard J. Ancimer, Joseph P. Chandraraj, David P. Genter, Brian K. Landes, Agneya Turlapati
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Patent number: 11970991Abstract: A method includes: initiating a low engine-out NOx (LEON) mode by controlling a component of a vehicle having an aftertreatment system to decrease an instantaneous engine-out NOx (EONOx) amount; comparing a temperature of the aftertreatment system during the LEON mode to a warm-operation threshold temperature; responsive to determining that the temperature of the aftertreatment system exceeds the warm-operation threshold temperature, disengaging the LEON mode; responsive to determining that the temperature of the aftertreatment system is below the warm-up operation threshold temperature, comparing information indicative of an operating status of the vehicle to a LEON exit threshold; and disengaging the LEON mode responsive to determining that the information indicative of the operating status of the vehicle during the LEON mode exceeds the LEON exit threshold.Type: GrantFiled: December 5, 2022Date of Patent: April 30, 2024Assignees: Cummins Inc., Scania CV ABInventors: Janardhan Kodavasal, Ved Merchant, Agneya Turlapati, Kristopher R. Bare
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Patent number: 11909078Abstract: The present disclosure generally relates to systems and methods of using water output from a fuel cell system to aid in heat dissipation and evaporative cooling of radiators.Type: GrantFiled: February 2, 2022Date of Patent: February 20, 2024Assignee: CUMMINS INC.Inventors: Archit Koti, Rohit Saha, Sumit Tripathi, Christopher Nelson, Agneya Turlapati, Jairo A. Martinez Garcia, Sachin Vinayak Damle, Suhas Deutkar, Pradheepram Ottikkutti, Sunil Suryakant Bahulikar, Sandesh Sadawarte
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Publication number: 20240026808Abstract: A system includes an exhaust aftertreatment system coupled to an engine, and a controller including at least one processor coupled to at least one memory device storing instructions that, when executed by the at least one processor, cause the controller to perform certain operations. The operations include estimating an aging of the exhaust aftertreatment system, and adjusting at least one of an entry temperature threshold or an exit temperature threshold for a thermal management mode for the exhaust aftertreatment system based on the aging of the exhaust aftertreatment system.Type: ApplicationFiled: December 8, 2021Publication date: January 25, 2024Applicant: Cummins Inc.Inventors: Kristopher R. Bare, Michael J. Cunningham, Jennifer Kay Light-Holets, Xiaobo Song, Agneya Turlapati
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Publication number: 20230369629Abstract: The present disclosure generally relates to modular fuel cell systems that provide power, air handling, and/or cooling systems to create a hybrid or electric vehicle.Type: ApplicationFiled: May 15, 2023Publication date: November 16, 2023Inventors: Sravan Kumar RAGI, Agneya TURLAPATI, David GENTER, Brian K. LANDES, Heonjoong LEE, Kieran J. RICHARDS, Rohit SAHA, Richard J. ANCIMER, Nathaniel Ian JOOS
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Patent number: 11814995Abstract: A recycling loop configuration of an exhaust gas aftertreatment system decreases a level of system-out NOx emissions of an engine. An apparatus including the configuration has an exhaust gas recycling system having a closed gas recycling loop system configured to heat gas circulating within the loop, and a blower for circulating gas within the loop. A method for operating the engine includes preheating at least one aftertreatment component of an exhaust gas aftertreatment system of the engine by exposing the component to heated gas circulating in a closed gas recycling loop.Type: GrantFiled: May 16, 2022Date of Patent: November 14, 2023Assignee: Cummins Inc.Inventors: Kunlun Liu, Xiaobo Song, Xing Jin, Kristopher R. Bare, Sriram S. Popuri, Scott Robert Bardakjy, Agneya Turlapati
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Publication number: 20230322190Abstract: The present disclosure relates to systems and methods for optimizing refueling hydrogen in vehicles. Specifically, the present disclosure relates to identifying a refueling station, conducting a safety check on the vehicle based on a distance between the vehicle and the refueling station, switching a power source of the vehicle to only be a battery, swapping an empty or partially filled hydrogen fuel tank on the vehicle with a filled or partially filled hydrogen fuel tank at the refueling station, and switching the power source of the vehicle to include a hydrogen power source.Type: ApplicationFiled: March 21, 2023Publication date: October 12, 2023Inventors: Aaron William BEINBORN, David P. GENTER, Kieran J. RICHARDS, Brian K. LANDES, Jithin BENJAMIN, Joseph P. CHANDRARAJ, Agneya TURLAPATI, Sravan Kumar RAGI, Heonjoong LEE, Michael BATES
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Publication number: 20230302922Abstract: A system for a fuel cell vehicle including a plurality of fuel cell modules, a plurality of battery packs, and a controller. At least one of the plurality of fuel cell modules having a state of health (SOH) different from a corresponding SOH of other fuel cell modules. Each battery pack including a plurality of battery cells. At least one of the plurality of battery packs having a SOH different from a corresponding SOH of other battery packs. The controller is communicatively coupled to monitor and control operation of the plurality of fuel cell modules and the plurality of battery packs. The controller is configured to receive a power demand and determine a power split between the plurality of fuel cell modules and the plurality of battery packs based on an operating phase of the vehicle.Type: ApplicationFiled: March 24, 2023Publication date: September 28, 2023Inventors: Agneya TURLAPATI, Akshat Abhay RAUT, Arka Saha RAY, Anant PURI, David P. GENTER, Aaron William BEINBORN, Joseph P. CHANDRARAJ, Sumit TRIPATHI, Heonjoong LEE
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Publication number: 20230182585Abstract: The present disclosure generally relates to systems and methods for implementing power a power split between a first and a second power source in a fuel cell powertrain system. The method includes receiving an input into a processor of the fuel cell powertrain system, determining an output by the processor, communicating the output by the processor to a system controller and determining a power split by the system controller. The first power source includes a fuel cell system and the second power source is selected from a battery system or an engine, and the input includes a life or health of at least one of the first power source or the second power source.Type: ApplicationFiled: December 13, 2021Publication date: June 15, 2023Inventors: Archit N. KOTI, Patrick KAUFMAN, Elizabeth WEITZEL, Vivek Anand SUJAN, Martin T. BOOKS, Chinmay RAO, Yongfei YU, Sharon LIU, Sumit TRIPATHI, David P. Genter, Agneya TURLAPATI, Rohit SAHA, Jifei YAN
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Publication number: 20230086566Abstract: A method includes: initiating a low engine-out NOx (LEON) mode by controlling a component of a vehicle having an aftertreatment system to decrease an instantaneous engine-out NOx (EONOx) amount; comparing a temperature of the aftertreatment system during the LEON mode to a warm-operation threshold temperature; responsive to determining that the temperature of the aftertreatment system exceeds the warm-operation threshold temperature, disengaging the LEON mode; responsive to determining that the temperature of the aftertreatment system is below the warm-up operation threshold temperature, comparing information indicative of an operating status of the vehicle to a LEON exit threshold; and disengaging the LEON mode responsive to determining that the information indicative of the operating status of the vehicle during the LEON mode exceeds the LEON exit threshold.Type: ApplicationFiled: December 5, 2022Publication date: March 23, 2023Applicant: Cummins Inc.Inventors: Janardhan Kodavasal, Ved Merchant, Agneya Turlapati, Kristopher R. Bare
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Patent number: 11519350Abstract: A method comprises determining that an aftertreatment system is in a cold-operation mode; initiating a low engine-out NOx (LEON) mode by controlling a component of a vehicle containing the aftertreatment system to decrease an instantaneous engine out NOx (EONOx) amount and to increase exhaust energy relative to a normal operation mode for an engine of the vehicle; receiving information indicative of an operating status of the vehicle during the LEON mode; disengaging the LEON mode; subsequent to disengaging the LEON mode, initiating a thermal management (TM) mode for the aftertreatment system, wherein the TM mode is initiated by controlling a component of the vehicle to increase fueling to the engine for a power level by reducing engine efficiency and directing excess fuel to the aftertreatment system; receiving information indicative of an operating status of the vehicle during the TM mode; and disengaging the TM mode.Type: GrantFiled: December 7, 2021Date of Patent: December 6, 2022Assignee: Cummins Inc.Inventors: Janardhan Kodavasal, Ved Merchant, Agneya Turlapati, Kristopher R. Bare
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Patent number: 11512659Abstract: A system and method for self-adjusting engine performance parameters in response to fuel quality variations that includes an exhaust sensor for measuring a level of carbon dioxide present in an exhaust manifold, at least one of a knock sensor and a cylinder pressure transducer for determining a location of peak pressure and a centroid, respectively, a controller in communication with the exhaust sensor and the at least one of the knock sensor and the cylinder pressure transducer, the controller correlating a methane number of the fuel used by the engine to a brake specific carbon dioxide value calculated using the level of carbon dioxide measured by the exhaust sensor and the at least one of the centroid and the location of peak pressure, and an adjusting mechanism, wherein the adjusting mechanism adjusts an engine performance parameter based on the determined methane number.Type: GrantFiled: November 2, 2020Date of Patent: November 29, 2022Assignee: CUMMINS INC.Inventors: Agneya Turlapati, Robin J. Bremmer, Philipe F. Saad
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Publication number: 20220293972Abstract: The present disclosure generally relates to systems and methods of using water output from a fuel cell system to aid in heat dissipation and evaporative cooling of radiators.Type: ApplicationFiled: February 2, 2022Publication date: September 15, 2022Inventors: Archit KOTI, Rohit SAHA, Sumit TRIPATHI, Christopher NELSON, Agneya TURLAPATI, Jairo A. MARTINEZ GARCIA, Sachin Vinayak DAMLE, Suhas DEUTKAR, Pradheepram OTTIKKUTTI, Sunil Suryakant BAHULIKAR, Sandesh Sadawarte
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Publication number: 20220290594Abstract: A recycling loop configuration of an exhaust gas aftertreatment system decreases a level of system-out NOx emissions of an engine. An apparatus including the configuration has an exhaust gas recycling system having a closed gas recycling loop system configured to heat gas circulating within the loop, and a blower for circulating gas within the loop. A method for operating the engine includes preheating at least one aftertreatment component of an exhaust gas aftertreatment system of the engine by exposing the component to heated gas circulating in a closed gas recycling loop.Type: ApplicationFiled: May 16, 2022Publication date: September 15, 2022Inventors: Kunlun Liu, Xiaobo Song, Xing Jin, Kristopher R. Bare, Sriram S. Popuri, Scott Robert Bardakjy, Agneya Turlapati
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Patent number: 11428155Abstract: The present disclosure provides an engine fueling system that includes multiple fueling valves such that the fuel transport delay can be reduced. The fueling system may also include an electrically driven compressor to improve engine properties during engine startup. For example, an engine fueling system comprising: a first compressor; an intake air throttle operably coupled to the first compressor and positioned downstream of the first compressor; a primary fuel path in communication with a fuel supply, wherein a first fuel from the fuel supply is injected into the primary fuel path upstream from the compressor; and a secondary fuel path in communication with the fuel supply, wherein a second fuel from the fuel supply is injected into the secondary fuel path downstream from the compressor.Type: GrantFiled: July 24, 2019Date of Patent: August 30, 2022Assignee: CUMMINS INC.Inventors: Carlos A. Lana, Trideep Singh, Veronica S. Perks, Steven Kolhouse, Robin J. Bremmer, Philipe F. Saad, Agneya Turlapati, Milan Visaria
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Publication number: 20220178320Abstract: A method comprises determining that an aftertreatment system is in a cold-operation mode; initiating a low engine-out NOx (LEON) mode by controlling a component of a vehicle containing the aftertreatment system to decrease an instantaneous engine out NOx (EONOx) amount and to increase exhaust energy relative to a normal operation mode for an engine of the vehicle; receiving information indicative of an operating status of the vehicle during the LEON mode; disengaging the LEON mode; subsequent to disengaging the LEON mode, initiating a thermal management (TM) mode for the aftertreatment system, wherein the TM mode is initiated by controlling a component of the vehicle to increase fueling to the engine for a power level by reducing engine efficiency and directing excess fuel to the aftertreatment system; receiving information indicative of an operating status of the vehicle during the TM mode; and disengaging the TM mode.Type: ApplicationFiled: December 7, 2021Publication date: June 9, 2022Inventors: Janardhan Kodavasal, Ved Merchant, Agneya Turlapati, Kristopher R. Bare
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Publication number: 20210215094Abstract: The present disclosure provides an engine fueling system that includes multiple fueling valves such that the fuel transport delay can be reduced. The fueling system may also include an electrically driven compressor to improve engine properties during engine startup. For example, an engine fueling system comprising: a first compressor; an intake air throttle operably coupled to the first compressor and positioned downstream of the first compressor; a primary fuel path in communication with a fuel supply, wherein a first fuel from the fuel supply is injected into the primary fuel path upstream from the compressor; and a secondary fuel path in communication with the fuel supply, wherein a second fuel from the fuel supply is injected into the secondary fuel path downstream from the compressor.Type: ApplicationFiled: July 24, 2019Publication date: July 15, 2021Inventors: Carlos A. Lana, Trideep Singh, Veronica S. Perks, J. Steven Kolhouse, Robin J. Bremmer, Philipe F. Saad, Agneya Turlapati, Milan Visaria
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Patent number: 10823096Abstract: A system and method for self-adjusting engine performance parameters in response to fuel quality variations that includes an exhaust sensor for measuring a level of carbon dioxide present in an exhaust manifold, at least one of a knock sensor and a cylinder pressure transducer for determining a location of peak pressure and a centroid, respectively, a controller in communication with the exhaust sensor and the at least one of the knock sensor and the cylinder pressure transducer, the controller correlating a methane number of the fuel used by the engine to a brake specific carbon dioxide value calculated using the level of carbon dioxide measured by the exhaust sensor and the at least one of the centroid and the location of peak pressure, and an adjusting mechanism, wherein the adjusting mechanism adjusts an engine performance parameter based on the determined methane number.Type: GrantFiled: February 4, 2016Date of Patent: November 3, 2020Assignee: Cummins Inc.Inventors: Agneya Turlapati, Robin J. Bremmer, Philipe F. Saad
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Patent number: 10648374Abstract: A spark-ignited gas engine system comprises a combustion chamber defined by a piston, a head with a spark plug mechanism, and a cylinder having an associated intake valve and an associated exhaust valve, into which a mixture of combustible gas and air is entered via an intake manifold of the engine to drive a crankshaft. The system further comprises at least one turbocharger to compress the mixture. The system further comprises at least one camshaft, driven by the crankshaft via a gear assembly connected to the crankshaft, that comprises at least one cam that actuates the intake valve and the exhaust valve, at least one camphaser, coupled to the crankshaft via the gear assembly, and a controller to adjust a cam angle operation of the intake valve and the exhaust valve by adjusting the camphaser to a desired phase position to meet a target rotational phase of the camshaft.Type: GrantFiled: August 11, 2016Date of Patent: May 12, 2020Assignee: Cummins Inc.Inventors: Philipe F. Saad, Edward J. Lyford-Pike, Milan K. Visaria, Agneya Turlapati, Anamitra Bhattacharyya, Jason R. Griffin, Brendan C. Norton