Patents by Inventor Robert Eloy Gonzales

Robert Eloy Gonzales 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).

  • On-board diagnostic catalyst monitoring system
    Patent number: 6804951
    Abstract: A method for determining the effectiveness of a catalyst to remove emissions from the exhaust of an internal combustion engine. The method includes measuring an upstream time history of a signal produced by an exhaust gas oxygen sensor upstream of the converter and a time history of an exhaust gas oxygen sensor disposed downstream of the converter. The time histories vary between a lean air-fuel ratio signal level and a rich air-fuel ratio signal level. A time delay is determined between the upstream time history and the downstream time history during transitions in such time histories from the lean air-fuel ratio signal level to the rich air-fuel ratio signal level. The determined time delay is compared with a reference time delay to determine the efficiency of the converter. The converter is determined to be ineffective if the converter as been determined to be potentially ineffective and the time delay is determined to be less than the reference time delay.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: October 19, 2004
    Assignee: Ford Global Technologies, LLC
    Inventors: David Robert Nader, Michael Igor Kluzner, Robert Eloy Gonzales, Robert Joseph Jerger, Ziad Zaghati
  • On-board diagnostic catalyst monitoring system
    Publication number: 20040083720
    Abstract: A method for determining the effectiveness of a catalyst to remove emissions from the exhaust of an internal combustion engine. The method includes measuring an upstream time history of a signal produced by an exhaust gas oxygen sensor upstream of the converter and a time history of an exhaust gas oxygen sensor disposed downstream of the converter. The time histories vary between a lean air-fuel ratio signal level and a rich air-fuel ratio signal level. A time delay is determined between the upstream time history and the downstream time history during transitions in such time histories from the lean air-fuel ratio signal level to the rich air-fuel ratio signal level. The determined time delay is compared with a reference time delay to determine the efficiency of the converter. The converter is determined to be ineffective if the converter as been determined to be potentially ineffective and the time delay is determined to be less than the reference time delay.
    Type: Application
    Filed: November 6, 2002
    Publication date: May 6, 2004
    Applicant: Ford Global Technologies, Inc.
    Inventors: David Robert Nader, Michael Igor Kluzner, Robert Eloy Gonzales, Robert Joseph Jerger, Ziad Zaghati