Patents by Inventor Eric R. Snyder

Eric R. Snyder 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).

  • Environmental factor based particulate filter regeneration
    Patent number: 8479495
    Abstract: A control module for a vehicle includes a correction module that generates a correction signal based on a regeneration state of an exhaust system of the vehicle and based on a received environmental signal. The environmental signal includes at least one of an altitude value, an ambient temperature, and an air flow value. The air flow value corresponds to air flow across an external area of the exhaust system. A first post injection module generates a first post injection signal. A second post injection module adjusts the first post injection signal based on the correction signal to generate a second post injection signal.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: July 9, 2013
    Inventors: Sarah Funk, Thomas Larose, Jr., Eric R Snyder, Paul Jasinkiewicz, Jason Daniel Mullins, James M Perrin
  • Exhaust gas oxygen concentration control system and method
    Patent number: 8443591
    Abstract: An engine control system comprises an oxygen comparison module and a regeneration control module. The oxygen comparison module compares an oxygen concentration of an exhaust gas of an engine to an oxygen threshold. A regeneration control module initiates regeneration of a particulate filter and controls regeneration based on the oxygen comparison and at least one of a particulate filter load, a particulate filter temperature, and a speed of the engine.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: May 21, 2013
    Inventors: Thomas LaRose, Jr., Jason Daniel Mullins, Eric R. Snyder, Matthew King, Paul Jasinkiewicz, Nicasio Gomez, III
  • Oxidation catalyst outlet temperature correction systems and methods
    Patent number: 8327621
    Abstract: A temperature control system comprises a temperature determination module, a temperature correction module, a temperature control module, and an updating module. The temperature determination module determines a desired outlet temperature for an oxidation catalyst (OC) that is located upstream of a particulate filter (PF) in an exhaust system. The temperature correction module determines a temperature correction from a plurality of temperature corrections. The temperature control module controls an outlet temperature of the OC based on the desired outlet temperature and the temperature correction. The updating module selectively updates at least one of the plurality of temperature corrections when an engine speed and an engine load are within respective predetermined ranges.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: December 11, 2012
    Inventors: Thomas LaRose, Jr., Jason Daniel Mullins, Eric R. Snyder, Paul Jasinkiewicz, James M. Perrin, Sarah Funk
  • EXHAUST GAS OXYGEN CONCENTRATION CONTROL SYSTEM AND METHOD
    Publication number: 20110107741
    Abstract: An engine control system comprises an oxygen comparison module and a regeneration control module. The oxygen comparison module compares an oxygen concentration of an exhaust gas of an engine to an oxygen threshold. A regeneration control module initiates regeneration of a particulate filter and controls regeneration based on the oxygen comparison and at least one of a particulate filter load, a particulate filter temperature, and a speed of the engine.
    Type: Application
    Filed: November 10, 2009
    Publication date: May 12, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Thomas LaRose, JR., Jason Daniel Mullins, Eric R. Snyder, Matthew King, Paul Jasinkiewicz, Nicasio Gomez, III
  • OXIDATION CATALYST OUTLET TEMPERATURE CORRECTION SYSTEMS AND METHODS
    Publication number: 20100269489
    Abstract: A temperature control system comprises a temperature determination module, a temperature correction module, a temperature control module, and an updating module. The temperature determination module determines a desired outlet temperature for an oxidation catalyst (OC) that is located upstream of a particulate filter (PF) in an exhaust system. The temperature correction module determines a temperature correction from a plurality of temperature corrections. The temperature control module controls an outlet temperature of the OC based on the desired outlet temperature and the temperature correction. The updating module selectively updates at least one of the plurality of temperature corrections when an engine speed and an engine load are within respective predetermined ranges.
    Type: Application
    Filed: April 22, 2009
    Publication date: October 28, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Thomas LaRose, JR., Jason Daniel Mullins, Eric R. Snyder, Paul Jasinkiewicz, James M. Perrin, Sarah Funk
  • ENVIRONMENTAL FACTOR BASED PARTICULATE FILTER REGENERATION
    Publication number: 20100223910
    Abstract: A control module for a vehicle includes a correction module that generates a correction signal based on a regeneration state of an exhaust system of the vehicle and based on a received environmental signal. The environmental signal includes at least one of an altitude value, an ambient temperature, and an air flow value. The air flow value corresponds to air flow across an external area of the exhaust system. A first post injection module generates a first post injection signal. A second post injection module adjusts the first post injection signal based on the correction signal to generate a second post injection signal.
    Type: Application
    Filed: March 3, 2009
    Publication date: September 9, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Sarah Funk, Thomas Larose, JR., Eric R. Snyder, Paul Jasinkiewicz, Jason Daniel Mullins, James M. Perrin