Patents by Inventor Michael Casedy

Michael Casedy 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).

  • Patent number: 10480368
    Abstract: Methods and systems are provided for differentiating an exhaust air leak from a catalyst monitor sensor degraded with a slow-response. In one example, a pressure proximate an exhaust system particulate filter less than a threshold pressure may indicate an exhaust air leak and responsive to the indication of the exhaust air leak, the thresholds for monitoring the catalyst monitor sensor response may be adjusted. In this way, the impact of an exhaust air leak on catalyst monitor output may be accounted for so that subsequent monitoring for threshold catalyst may continue to be performed accurately in the presence of an exhaust air leak.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: November 19, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Mario Anthony Santillo, Michael James Uhrich, Joseph Norman Ulrey, Andrew Bagnasco, Michael Casedy
  • Publication number: 20190063284
    Abstract: Methods and systems are provided for differentiating an exhaust air leak from a catalyst monitor sensor degraded with a slow-response. In one example, a pressure proximate an exhaust system particulate filter less than a threshold pressure may indicate an exhaust air leak and responsive to the indication of the exhaust air leak, the thresholds for monitoring the catalyst monitor sensor response may be adjusted. In this way, the impact of an exhaust air leak on catalyst monitor output may be accounted for so that subsequent monitoring for threshold catalyst may continue to be performed accurately in the presence of an exhaust air leak.
    Type: Application
    Filed: August 28, 2017
    Publication date: February 28, 2019
    Inventors: Mario Anthony Santillo, Michael James Uhrich, Joseph Norman Ulrey, Andrew Bagnasco, Michael Casedy
  • Patent number: 9932877
    Abstract: A method is provided for monitoring an emission device coupled to an engine. In one example approach, the method comprises: following a deceleration fuel shut-off duration, indicating degradation of the emission device based on an amount of rich products required to cause a sensor to become richer than a threshold. The amount of rich products required may be correlated to an amount of oxygen stored in the emission device.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: April 3, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Michael James Uhrich, Imad Hassan Makki, Pankaj Kumar, Michael Casedy
  • Patent number: 9689298
    Abstract: A method is provided for monitoring an emission control device coupled to an engine. In one example approach, the method comprises, following a deceleration fuel shut-off (DFSO) duration, indicating degradation of an emission device based on an amount of rich products required to cause a sensor to become richer than a first threshold, the indicating carried out when DFSO duration is greater than a second threshold. The method also comprises an integration which is based on inlet air-fuel ratio, the integration starting only after a pre-catalyst sensor reaches stoichiometry.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: June 27, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Pankaj Kumar, Imad Hassan Makki, Brent Edward Sealy, Michael Casedy
  • Patent number: 9500151
    Abstract: A method for monitoring an exhaust gas sensor coupled in an engine exhaust is provided. In one embodiment, the method comprises indicating exhaust gas sensor degradation based on shape of a distribution of extreme values of a plurality of sets of lambda differentials collected during selected operating conditions. In this way, the exhaust gas sensor may be monitored in a non-intrusive manner.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: November 22, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Hassene Jammoussi, Imad Hassan Makki, Adam Nathan Banker, Michael Casedy
  • Patent number: 9447744
    Abstract: Methods and systems are described for evaluating presence of fuel shifts in an engine. In one example, a method comprises indicating a fuel shift based on a time delay of an exhaust gas sensor during an entry into and an exit out of deceleration fuel shut off (DFSO).
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: September 20, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Hassene Jammoussi, Imad Hassan Makki, Michael James Uhrich, Michael Casedy, Kenneth John Behr
  • Publication number: 20160102594
    Abstract: A method is provided for monitoring an emission control device coupled to an engine. In one example approach, the method comprises, following a deceleration fuel shut-off (DFSO) duration, indicating degradation of an emission device based on an amount of rich products required to cause a sensor to become richer than a first threshold, the indicating carried out when DFSO duration is greater than a second threshold. The method also comprises an integration which is based on inlet air-fuel ratio, the integration starting only after a pre-catalyst sensor reaches stoichiometry.
    Type: Application
    Filed: October 13, 2014
    Publication date: April 14, 2016
    Inventors: Pankaj Kumar, Imad Hassan Makki, Brent Edward Sealy, Michael Casedy
  • Patent number: 9261033
    Abstract: Systems and methods for diagnosing operation of a catalyst are presented. In one example, threshold limits for catalyst variables are adjusted in response to attributes of a catalyst monitor sensor that may vary with sensor age. The catalyst variables may provide insight into whether or not the catalyst is degraded or operating as intended.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: February 16, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Brent Edward Sealy, Michael Casedy, Timothy Robert Gernant
  • Patent number: 9249751
    Abstract: Methods and systems are provided for converting an asymmetric degradation response of an exhaust gas sensor to a more symmetric degradation response. In one example, a method includes adjusting fuel injection responsive to a modified exhaust oxygen feedback signal from an exhaust gas sensor, the modified exhaust oxygen feedback signal modified by transforming an asymmetric response of the exhaust gas sensor to a more symmetric response. Further, the method may include adjusting one or more parameters of an anticipatory controller of the exhaust gas sensor based on the modified symmetric response.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: February 2, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Hassene Jammoussi, Imad Hassan Makki, Michael James Uhrich, Michael Casedy
  • Patent number: 9243591
    Abstract: Methods and system are provided for identifying unintended closing (or corking) of a mechanical valve coupled to a fuel tank. If tank vent valve corking is identified during a leak test, fuel tank pressure data collected during the leak test is disregarded and not used to determine a fuel system leak. Instead, a fuel system leak test is repeated to improve reliability of test results.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: January 26, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Robert Roy Jentz, Mark W. Peters, Michael Casedy, Aed M Dudar
  • Publication number: 20160017827
    Abstract: Methods and systems are described for evaluating presence of fuel shifts in an engine. In one example, a method comprises indicating a fuel shift based on a time delay of an exhaust gas sensor during an entry into and an exit out of deceleration fuel shut off (DFSO).
    Type: Application
    Filed: July 17, 2014
    Publication date: January 21, 2016
    Inventors: Hassene Jammoussi, Imad Hassan Makki, Michael James Uhrich, Michael Casedy, Kenneth John Behr
  • Publication number: 20150337750
    Abstract: Systems and methods for diagnosing operation of a catalyst are presented. In one example, threshold limits for catalyst variables are adjusted in response to attributes of a catalyst monitor sensor that may vary with sensor age. The catalyst variables may provide insight into whether or not the catalyst is degraded or operating as intended.
    Type: Application
    Filed: May 22, 2014
    Publication date: November 26, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Brent Edward Sealy, Michael Casedy, Timothy Robert Gernant
  • Patent number: 9169795
    Abstract: Methods and systems are provided for adjusting an anticipatory controller of an exhaust gas sensor coupled in an engine exhaust. In one embodiment, the method comprises adjusting fuel injection responsive to exhaust oxygen feedback from the anticipatory controller of the exhaust gas sensor and adjusting one or more parameters of the anticipatory controller responsive to a type of oxygen sensor degradation. In this way, the anticipatory controller may be adapted based on the type and magnitude of the degradation behavior to increase performance of the air-fuel control system.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: October 27, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Hassene Jammoussi, Imad Hassan Makki, Dimitar Petrov Filev, Adam Nathan Banker, Michael James Uhrich, Michael Casedy
  • Publication number: 20150219033
    Abstract: A method for monitoring an exhaust gas sensor coupled in an engine exhaust is provided. In one embodiment, the method comprises indicating exhaust gas sensor degradation based on shape of a distribution of extreme values of a plurality of sets of lambda differentials collected during selected operating conditions. In this way, the exhaust gas sensor may be monitored in a non-intrusive manner.
    Type: Application
    Filed: February 6, 2014
    Publication date: August 6, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Hassene Jammoussi, Imad Hassan Makki, Adam Nathan Banker, Michael Casedy
  • Patent number: 9097166
    Abstract: A method of monitoring catalyst performance may comprise applying a set of parameter readings for a given sample to a support vector machine to generate a classification output, clustering the set of parameter readings to reduce a number of support vectors, computing a total fuel mass following a deceleration fuel shut-off event and an exhaust gas oxygen sensor switch and indicating catalyst degradation based on the total fuel mass.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: August 4, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Imad Hassan Makki, Pankaj Kumar, Dimitar Petrov Filev, Timothy Robert Gernant, Michael Casedy, Brent Edward Sealy
  • Patent number: 8958974
    Abstract: A method of monitoring an exhaust gas sensor coupled in an engine exhaust is provided. The method comprises indicating exhaust gas sensor degradation based on a difference between a first set of estimated parameters of a rich operation model and a second set of estimated parameters of a lean operation model, the estimated parameters based on commanded lambda and determined lambda values collected during selected operating conditions. In this way, sensor degradation may be indicated with data collected in a non-intrusive manner.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: February 17, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Imad Hassan Makki, James Michael Kerns, Michael Casedy, Hassene Jammoussi
  • Publication number: 20140345584
    Abstract: Methods and systems are provided for converting an asymmetric degradation response of an exhaust gas sensor to a more symmetric degradation response. In one example, a method includes adjusting fuel injection responsive to a modified exhaust oxygen feedback signal from an exhaust gas sensor, the modified exhaust oxygen feedback signal modified by transforming an asymmetric response of the exhaust gas sensor to a more symmetric response. Further, the method may include adjusting one or more parameters of an anticipatory controller of the exhaust gas sensor based on the modified symmetric response.
    Type: Application
    Filed: May 23, 2013
    Publication date: November 27, 2014
    Applicant: Ford Global Technologies, LLC
    Inventors: Hassene Jammoussi, Imad Hassan Makki, Michael James Uhrich, Michael Casedy
  • Publication number: 20140336899
    Abstract: A method is provided for monitoring an emission device coupled to an engine. In one example approach, the method comprises: following a deceleration fuel shut-off duration, indicating degradation of the emission device based on an amount of rich products required to cause a sensor to become richer than a threshold. The amount of rich products required may be correlated to an amount of oxygen stored in the emission device.
    Type: Application
    Filed: May 10, 2013
    Publication date: November 13, 2014
    Applicant: Ford Global Technologies, LLC
    Inventors: Michael James Uhrich, Imad Hassan Makki, Pankaj Kumar, Michael Casedy
  • Publication number: 20140283589
    Abstract: A method of monitoring catalyst performance may comprise applying a set of parameter readings for a given sample to a support vector machine to generate a classification output, clustering the set of parameter readings to reduce a number of support vectors, computing a total fuel mass following a deceleration fuel shut-off event and an exhaust gas oxygen sensor switch and indicating catalyst degradation based on the total fuel mass.
    Type: Application
    Filed: March 22, 2013
    Publication date: September 25, 2014
    Applicant: Ford Global Technologies, LLC
    Inventors: Imad Hassan Makki, Pankaj Kumar, Dimitar Petrov Filev, Timothy Robert Gernant, Michael Casedy, Brent Edward Sealy
  • Publication number: 20140238368
    Abstract: Methods and systems are provided for adjusting an anticipatory controller of an exhaust gas sensor coupled in an engine exhaust. In one embodiment, the method comprises adjusting fuel injection responsive to exhaust oxygen feedback from the anticipatory controller of the exhaust gas sensor and adjusting one or more parameters of the anticipatory controller responsive to a type of oxygen sensor degradation. In this way, the anticipatory controller may be adapted based on the type and magnitude of the degradation behavior to increase performance of the air-fuel control system.
    Type: Application
    Filed: February 27, 2013
    Publication date: August 28, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Hassene Jammoussi, Imad Hassan Makki, Dimitar Petrov Filev, Adam Nathan Banker, Michael James Uhrich, Michael Casedy