Patents by Inventor Royce V. Koshy

Royce V. Koshy 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).

  • Reductant apportionment for multi-dosing architectures
    Patent number: 9903247
    Abstract: A system for apportioning reductant dosing amounts in multi-doser architectures includes an engine, an aftertreatment system in fluid communication with the engine, and a controller. The aftertreatment system includes a first doser configured to dose reductant into a first decomposition reaction member and a second doser configured to dose reductant into a second decomposition reaction member. The controller receives engine operating conditions and determines a total reductant amount based on the engine operating conditions. The controller also apportions the total reductant amount into a first apportioned reductant amount based on a first maximum reductant dosing amount for the first doser and a second apportioned reductant amount based on a second maximum reductant dosing amount for the second doser. The controller outputs a first apportioned reductant dosing command to the first doser and a second apportioned reductant dosing command to the second doser.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: February 27, 2018
    Assignee: CUMMINS EMISSION SOLUTIONS INC.
    Inventors: Royce V. Koshy, Shireen Faizi, Jeremy D. Harris, Aditya Hegde
  • REDUCTANT APPORTIONMENT FOR MULTI-DOSING ARCHITECTURES
    Publication number: 20170191393
    Abstract: A system for apportioning reductant dosing amounts in multi-doser architectures includes an engine, an aftertreatment system in fluid communication with the engine, and a controller. The aftertreatment system includes a first doser configured to dose reductant into a first decomposition reaction member and a second doser configured to dose reductant into a second decomposition reaction member. The controller receives engine operating conditions and determines a total reductant amount based on the engine operating conditions. The controller also apportions the total reductant amount into a first apportioned reductant amount based on a first maximum reductant dosing amount for the first doser and a second apportioned reductant amount based on a second maximum reductant dosing amount for the second doser. The controller outputs a first apportioned reductant dosing command to the first doser and a second apportioned reductant dosing command to the second doser.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 6, 2017
    Applicant: Cummins Emission Solutions Inc.
    Inventors: Royce V. Koshy, Shireen Faizi, Jeremy D. Harris, Aditya Hegde