Patents by Inventor Edward Fredericks

Edward Fredericks 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).

  • Method and system for improving diagnosis of a catalyst
    Patent number: 10626779
    Abstract: Methods and systems are provided for diagnosing operation of a catalyst in the presence of oxygen sensor degradation over a vehicle life cycle. The methods and systems described herein filter the output of one oxygen sensor according to a time constant of a different oxygen sensor so that determination of a catalyst index ratio is compensated for oxygen sensor degradation.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: April 21, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Andrew Bagnasco, Edward Fredericks, Mario Santillo
  • METHOD AND SYSTEM FOR IMPROVING DIAGNOSIS OF A CATALYST
    Publication number: 20200025056
    Abstract: Methods and systems are provided for diagnosing operation of a catalyst in the presence of oxygen sensor degradation over a vehicle life cycle. The methods and systems described herein filter the output of one oxygen sensor according to a time constant of a different oxygen sensor so that determination of a catalyst index ratio is compensated for oxygen sensor degradation.
    Type: Application
    Filed: July 19, 2018
    Publication date: January 23, 2020
    Inventors: Andrew Bagnasco, Edward Fredericks, Mario Santillo