Patents by Inventor Srinivas Chakravarthy

Srinivas Chakravarthy 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).

  • Patent number: 12241394
    Abstract: A method of controlling an exhaust gas aftertreatment system includes receiving a plurality of emissions values from a plurality of sensors disposed in an aftertreatment system, determining a real-time conversion efficiency for one or more legs of the aftertreatment system based on the emissions values, determining a real-time conversion metric for the aftertreatment system based on the real-time conversion efficiency for the one or more legs, comparing the real-time conversion metric to an upper threshold value, and initiating a cleaning operation to clean the aftertreatment system based on a determination that the real-time conversion metric satisfies the upper threshold value.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: March 4, 2025
    Assignee: Cummins Power Generation Inc.
    Inventors: Ankit Sakuja, Travis Alva Anderson, Srinivas Chakravarthy Bathula
  • Publication number: 20240247603
    Abstract: Systems are provided including a selective catalytic reduction catalyst structured to receive first exhaust gas from a first fuel source of a dual fuel engine system and second exhaust gas from a second fuel source of the dual fuel engine system, a first fuel of the first fuel source differing from a second fuel of the second fuel source, an ammonia slip catalyst positioned downstream of the selective catalytic reduction catalyst to receive a flow of exhaust gases from the selective catalytic reduction catalyst without an intervening catalyst, and an oxidation catalyst positioned downstream of the ammonia slip catalyst to receive the flow of exhaust gases from the ammonia slip catalyst without an intervening catalyst.
    Type: Application
    Filed: March 6, 2024
    Publication date: July 25, 2024
    Inventors: Ankit Sakuja, Srinivas Chakravarthy Bathula
  • Publication number: 20240159180
    Abstract: A method of controlling an exhaust gas aftertreatment system includes receiving a plurality of emissions values from a plurality of sensors disposed in an aftertreatment system, determining a real-time conversion efficiency for one or more legs of the aftertreatment system based on the emissions values, determining a real-time conversion metric for the aftertreatment system based on the real-time conversion efficiency for the one or more legs, comparing the real-time conversion metric to an upper threshold value, and initiating a cleaning operation to clean the aftertreatment system based on a determination that the real-time conversion metric satisfies the upper threshold value.
    Type: Application
    Filed: March 24, 2022
    Publication date: May 16, 2024
    Applicant: Cummins Power Generation Inc.
    Inventors: Ankit Sakuja, Travis Alva Anderson, Srinivas Chakravarthy Bathula
  • Patent number: 11927124
    Abstract: Systems are provided including a selective catalytic reduction catalyst structured to receive first exhaust gas from a first fuel source of a dual fuel engine system and second exhaust gas from a second fuel source of the dual fuel engine system, a first fuel of the first fuel source differing from a second fuel of the second fuel source, an ammonia slip catalyst positioned downstream of the selective catalytic reduction catalyst to receive a flow of exhaust gases from the selective catalytic reduction catalyst without an intervening catalyst, and an oxidation catalyst positioned downstream of the ammonia slip catalyst to receive the flow of exhaust gases from the ammonia slip catalyst without an intervening catalyst.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: March 12, 2024
    Assignee: Cummins Power Generation Inc.
    Inventors: Ankit Sakuja, Srinivas Chakravarthy Bathula
  • Publication number: 20230167758
    Abstract: Systems are provided including a selective catalytic reduction catalyst structured to receive first exhaust gas from a first fuel source of a dual fuel engine system and second exhaust gas from a second fuel source of the dual fuel engine system, a first fuel of the first fuel source differing from a second fuel of the second fuel source, an ammonia slip catalyst positioned downstream of the selective catalytic reduction catalyst to receive a flow of exhaust gases from the selective catalytic reduction catalyst without an intervening catalyst, and an oxidation catalyst positioned downstream of the ammonia slip catalyst to receive the flow of exhaust gases from the ammonia slip catalyst without an intervening catalyst.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 1, 2023
    Inventors: Ankit Sakuja, Srinivas Chakravarthy Bathula
  • Patent number: 11519315
    Abstract: Systems and apparatuses include a selective catalytic reduction system structured to receive exhaust gases from a dual fuel engine system and include a diesel exhaust fluid dosing unit, an ammonia slip catalyst positioned directly downstream of the selective catalytic reduction catalyst, an oxidation catalyst positioned directly downstream of the ammonia slip catalyst, and one or more processing circuits. The circuits receive a system out NOx value, a space velocity, an ammonia to NOx ratio, an exhaust temperature, a substitution rate, and a conversion efficiency target. The circuits determine a conversion efficiency differential, adjust the substitution rate based on the system out NOx value, adjust the ammonia to NOx ratio based on the space velocity, the ammonia to NOx ratio, the exhaust temperature, the substitution rate, the conversion efficiency target, and the conversion efficiency differential, and determine a diesel exhaust fluid dosing rate for the diesel exhaust fluid dosing unit.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: December 6, 2022
    Assignee: Cummins Power Generation Inc.
    Inventors: Ankit Sakuja, Srinivas Chakravarthy Bathula
  • Publication number: 20220343377
    Abstract: An instant pricing system and mechanism includes pricing templates for each vehicle/service combination, which are created by reference to an automobile's make, model, year, engine, transmission, drivetrain, and trim. Also, a job quote is created by reference to parts, labor times and suggested pricing through use of historical job data, 3rd party information, fleet contracts and service team inputs, in an iterative approach. The created Job quotes are linked to pricing templates to capture all pricing edits into the template.
    Type: Application
    Filed: April 23, 2021
    Publication date: October 27, 2022
    Applicant: Wrench IP Holding Company
    Inventors: Samir Narendra Mehta, Christian Kwon, Douglas Stevens, Srinivas Chakravarthy, Steven Huggard
  • Patent number: 11046309
    Abstract: One embodiment is a method of operating an electronic control system (ECS) to control an engine to propel a vehicle. The method comprises receiving a throttle command, determining an operation to increase engine cycle efficiency by reducing engine torque below a magnitude corresponding to the throttle command and below a torque curve limit over a first vehicle operation segment and permitting an increase in engine torque above the torque curve limit over a second vehicle operation segment, controlling the engine to output torque below the magnitude corresponding to the throttle command and below the torque curve limit over the first vehicle operation segment, and controlling the engine to output torque above the torque curve limit over the second vehicle operation segment in response to a second received throttle command and constrained by an extended limit on operation of the engine above the torque curve limit.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: June 29, 2021
    Assignee: Cummins Inc.
    Inventors: Apurva Arvind Chunodkar, Kenneth M. Follen, Mugdha S. Sane, Srinivas Chakravarthy Bathula, Arun Prakash Thunga Gopal, Vivek A. Sujan
  • Publication number: 20190263400
    Abstract: One embodiment is a method of operating an electronic control system (ECS) to control an engine to propel a vehicle. The method comprises receiving a throttle command, determining an operation to increase engine cycle efficiency by reducing engine torque below a magnitude corresponding to the throttle command and below a torque curve limit over a first vehicle operation segment and permitting an increase in engine torque above the torque curve limit over a second vehicle operation segment, controlling the engine to output torque below the magnitude corresponding to the throttle command and below the torque curve limit over the first vehicle operation segment, and controlling the engine to output torque above the torque curve limit over the second vehicle operation segment in response to a second received throttle command and constrained by an extended limit on operation of the engine above the torque curve limit.
    Type: Application
    Filed: October 24, 2017
    Publication date: August 29, 2019
    Inventors: Apurva Arvind Chunodkar, Kenneth M. Follen, Mugdha S. Sane, Srinivas Chakravarthy Bathula, Arun Prakash Thunga Gopal, Vivek A. Sujan
  • Publication number: 20170132386
    Abstract: Methods and systems for providing health care remotely via a television communication system are presented. In one example, a communication gateway configured to communicate with a head-end of a television communication system may receive information associating a user with the communication gateway. Health care information related specifically to the user, as well as a gateway identifier associated with the user, may be received at the gateway from the head-end. The health care information may be forwarded to a display communicatively coupled to the gateway based on the gateway identifier corresponding to the communication gateway.
    Type: Application
    Filed: January 13, 2017
    Publication date: May 11, 2017
    Inventors: Philippe Stransky-Heilkron, Nicholas C. Fishwick, Srinivas Chakravarthy Nayani
  • Patent number: 9201470
    Abstract: Disclosed are a mobile terminal and a method for controlling a 3D multi-angle view thereof. Multi-angle views of a 3D image captured by a plurality of cameras are displayed, switched (converted) and selected according to a touch input. And, a selected angle view of the 3D image undergoes a capturing or a recording. While appreciating different-angle views of a 3D image (broadcast image) captured by a plurality of cameras, a desired angle view of the 3D image may be played, recorded and stored with using a user interface. This may enhance a user's convenience.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: December 1, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Jonghwan Kim, Ramesh Venkatachalapathy, V. Srinivas Chakravarthy, Hemanth Kumar Vulavala
  • Publication number: 20150178456
    Abstract: Methods and systems for providing health care remotely via a television communication system are presented. In one example, a communication gateway configured to communicate with a head-end of a television communication system may receive information associating a user with the communication gateway. Health care information related specifically to the user, as well as a gateway identifier associated with the user, may be received at the gateway from the head-end. The health care information may be forwarded to a display communicatively coupled to the gateway based on the gateway identifier corresponding to the communication gateway.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 25, 2015
    Applicant: OpenTV, Inc.
    Inventors: Philippe Stransky-Heilkron, Nicholas Fishwick, Srinivas Chakravarthy Nayani
  • Publication number: 20120257025
    Abstract: Disclosed are a mobile terminal and a method for controlling a 3D multi-angle view thereof. Multi-angle views of a 3D image captured by a plurality of cameras are displayed, switched (converted) and selected according to a touch input. And, a selected angle view of the 3D image undergoes a capturing or a recording. While appreciating different-angle views of a 3D image (broadcast image) captured by a plurality of cameras, a desired angle view of the 3D image may be played, recorded and stored with using a user interface. This may enhance a user's convenience.
    Type: Application
    Filed: February 9, 2012
    Publication date: October 11, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Jonghwan Kim, Ramesh Venkatachalapathy, V. Srinivas Chakravarthy, Hemanth Kumar Vulavala