Patents by Inventor Christopher A Gillanders

Christopher A Gillanders 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).

  • Cold start emission reduction strategy for coordinated torque control systems
    Patent number: 7856309
    Abstract: A cold-start control system for an internal combustion engine includes a heat estimation module, a torque request module and a propulsion torque determination module. The heat estimation module determines an exhaust system temperature and estimates heat required to heat an exhaust system to a predetermined temperature. The torque request module generates a torque request based on the estimated heat. The propulsion torque determination module determines a desired engine torque based on the torque request.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: December 21, 2010
    Inventors: Christopher A Gillanders, John L. Lahti, Louis A. Avallone, Jon C. Miller, Robert C. Simon, Jr., Todd R. Shupe, Jaehak Jung, William R. Cawthorne, Leonard G. Wozniak
  • Method for on-board diagnosis of cold start emissions reduction control strategy
    Patent number: 7630826
    Abstract: A diagnostic cold start emissions control system for an internal combustion engine includes a control module having a calculated engine-out energy module, an engine-out energy residual module, and a diagnostic system evaluation module. The calculated engine-out energy module is in communication with the engine-out energy residual module and is configured to determine an operating engine-out energy flow based on an operating engine torque. The engine-out energy residual module is in communication with the diagnostic system evaluation module and is configured to determine an engine-out energy residual based on the determined engine-out energy flow and an expected engine-out energy flow. The diagnostic system evaluation module is configured to determine whether the determined engine-out energy residual meets a predetermined value indicative of proper cold start emissions control.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: December 8, 2009
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Wenbo Wang, John L. Lahti, Christopher A Gillanders, Robert J. Genslak, John F. Van Gilder