Patents by Inventor Michael R. Haas

Michael R. Haas 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).

  • Methods, systems, and apparatuses of SCR diagnostics
    Patent number: 8590290
    Abstract: One embodiment is a method including operating an SCR system at a plurality of commanded ammonia to NOx input ratios, providing a plurality of data indicating NOx output from the SCR system for the plurality of commanded ammonia to NOx input ratios, and evaluating the plurality of data to diagnose the SCR system. Additional embodiment are methods, systems, and apparatuses including SCR diagnostics. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the following description and drawings.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: November 26, 2013
    Assignee: Cummins Inc.
    Inventors: Aleksey Yezerets, Neal W. Currier, Zheng Liu, Joan M. Wills, Abdul R. Ofoli, Michael R. Haas, Andrew W. Osburn
  • METHODS, SYSTEMS, AND APPARATUSES OF SCR DIAGNOSTICS
    Publication number: 20110047964
    Abstract: One embodiment is a method including operating an SCR system at a plurality of commanded ammonia to NOx input ratios, providing a plurality of data indicating NOx output from the SCR system for the plurality of commanded ammonia to NOx input ratios, and evaluating the plurality of data to diagnose the SCR system. Additional embodiment are methods, systems, and apparatuses including SCR diagnostics. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the following description and drawings.
    Type: Application
    Filed: September 1, 2009
    Publication date: March 3, 2011
    Inventors: Aleksey Yezerets, Neal W. Currier, Zheng Liu, Joan M Wills, Abdul R. Ofoli, Michael R. Haas, Andrew W. Osburn