Patents by Inventor John Edward Hedges

John Edward Hedges 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 gasoline particulate filter operations
    Patent number: 10066575
    Abstract: Methods and systems are provided for optimal operation of a gasoline particulate filter coupled to an engine exhaust system. Based on engine operating conditions, a target soot level on the GPF may be determined, and one or more engine operating parameters may be adjusted to maintain the actual GPF soot level at the target level. In one example, if the actual GPF soot level is lower than the target level, one or more of a fuel injection timing and a fuel rail pressure may be adjusted to increase soot generation, and if the actual GPF soot level is higher than the target level, the GPF may be regenerated until the actual soot level reaches the target level.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: September 4, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Nikodem Suchta, Jacqueline A. Lymburner, Michiel J. Van Nieuwstadt, John Edward Hedges
  • METHOD AND SYSTEM FOR GASOLINE PARTICULATE FILTER OPERATIONS
    Publication number: 20180017012
    Abstract: Methods and systems are provided for optimal operation of a gasoline particulate filter coupled to an engine exhaust system. Based on engine operating conditions, a target soot level on the GPF may be determined, and one or more engine operating parameters may be adjusted to maintain the actual GPF soot level at the target level. In one example, if the actual GPF soot level is lower than the target level, one or more of a fuel injection timing and a fuel rail pressure may be adjusted to increase soot generation, and if the actual GPF soot level is higher than the target level, the GPF may be regenerated until the actual soot level reaches the target level.
    Type: Application
    Filed: July 15, 2016
    Publication date: January 18, 2018
    Inventors: Nikodem Suchta, Jacqueline A. Lymburner, Michiel J. Van Nieuwstadt, John Edward Hedges
  • Post fuel injection of gaseous fuel to reduce exhaust emissions
    Patent number: 9382857
    Abstract: Methods and systems are provided for delivering gaseous fuel as multiple fuel injections split between an intake stroke, a compression stroke, and/or a power stroke to expedite exhaust catalyst heating during an engine cold-start. Fuel injected in the intake and compression stroke is ignited and combusted. The power stroke fuel injections are combusted in the exhaust port to increase exhaust temperature and pressure for faster catalyst light-off.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: July 5, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Chris Paul Glugla, John Edward Hedges, Gopichandra Surnilla, Eric Warren Curtis, Mark Allen Dearth
  • POST FUEL INJECTION OF GASEOUS FUEL TO REDUCE EXHAUST EMISSIONS
    Publication number: 20150167576
    Abstract: Methods and systems are provided for delivering gaseous fuel as multiple fuel injections split between an intake stroke, a compression stroke, and/or a power stroke to expedite exhaust catalyst heating during an engine cold-start. Fuel injected in the intake and compression stroke is ignited and combusted. The power stroke fuel injections are combusted in the exhaust port to increase exhaust temperature and pressure for faster catalyst light-off.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 18, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Chris Paul Glugla, John Edward Hedges, Gopichandra Surnilla, Eric Warren Curtis, Mark Allen Dearth