Patents by Inventor Bradley V. Jones

Bradley V. Jones 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).

  • Controller and method for controlling operation of an aftertreatment system based on short-term and long-term cumulative degradation estimates
    Patent number: 11635011
    Abstract: A controller for controlling operation of an aftertreatment system that is configured to treat constituents of an exhaust gas produced by an engine, the aftertreatment system including a selective catalytic reduction (SCR) catalyst, the controller configured to: generate a short-term cumulative degradation estimate of the SCR catalyst corresponding to reversible degradation of the SCR catalyst due to sulfur and/or hydrocarbons based on a SCR catalyst temperature parameter; generate a long-term cumulative degradation estimate of the SCR catalyst corresponding to thermal aging of the SCR catalyst based on the SCR catalyst temperature parameter; generate a combined degradation estimate of the SCR catalyst based on the short-term cumulative degradation estimate and the long-term cumulative degradation estimate; and adjust an amount of reductant and/or an amount of hydrocarbons inserted into the aftertreatment system based on the combined degradation estimate of the SCR catalyst.
    Type: Grant
    Filed: September 9, 2022
    Date of Patent: April 25, 2023
    Assignee: Cummins Emission Solutions Inc.
    Inventors: James C. Clerc, Bradley V. Jones, Marc Alexander Greca, Santosh Kumar Ratan, Rohil Daya, Karthik Venkata Rama Krishna Dadi, Jinqian Gong, Bryon D. Staebler, Todd A. Corbet, Alain Ngoy Tschimwang, Premjee Sasidharan, David C. Hall
  • CONTROLLER AND METHOD FOR CONTROLLING OPERATION OF AN AFTERTREATMENT SYSTEM BASED ON SHORT-TERM AND LONG-TERM CUMULATIVE DEGRADATION ESTIMATES
    Publication number: 20230003152
    Abstract: A controller for controlling operation of an aftertreatment system that is configured to treat constituents of an exhaust gas produced by an engine, the aftertreatment system including a selective catalytic reduction (SCR) catalyst, the controller configured to: generate a short-term cumulative degradation estimate of the SCR catalyst corresponding to reversible degradation of the SCR catalyst due to sulfur and/or hydrocarbons based on a SCR catalyst temperature parameter; generate a long-term cumulative degradation estimate of the SCR catalyst corresponding to thermal aging of the SCR catalyst based on the SCR catalyst temperature parameter; generate a combined degradation estimate of the SCR catalyst based on the short-term cumulative degradation estimate and the long-term cumulative degradation estimate; and adjust an amount of reductant and/or an amount of hydrocarbons inserted into the aftertreatment system based on the combined degradation estimate of the SCR catalyst.
    Type: Application
    Filed: September 9, 2022
    Publication date: January 5, 2023
    Applicant: Cummins Emission Solutions Inc.
    Inventors: James C. Clerc, Bradley V. Jones, Marc Alexander Greca, Santosh Kumar Ratan, Rohil Daya, Karthik Venkata Rama Krishna Dadi, Jinqian Gong, Bryon D. Staebler, Todd A. Corbet, Alain Ngoy Tschimwang, Premjee Sasidharan, David C. Hall