Patents by Inventor Christopher I. McDaniel

Christopher I. McDaniel 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 of determining the rest position of an internal combustion engine
    Patent number: 7360406
    Abstract: The final rest position of an internal combustion engine crankshaft is determined by counting pulses of a CRANK signal responsive to crankshaft rotation after engine turn-off and evaluating the timing of the pulse edges to detect reversals in the direction of crankshaft rotation. Times are assigned to a given edge of each CRANK signal pulse, and a ratio of specified time intervals is compared to a threshold to detect crankshaft rock-back for controlling the pulse count direction.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: April 22, 2008
    Assignee: Delphi Technologies, Inc.
    Inventors: Christopher I. McDaniel, Michael J. Frey
  • Method of determining the rest position of an internal combustion engine
    Publication number: 20080022760
    Abstract: The final rest position of an internal combustion engine crankshaft is determined by counting pulses of a CRANK signal responsive to crankshaft rotation after engine turn-off and evaluating the timing of the pulse edges to detect reversals in the direction of crankshaft rotation. Times are assigned to a given edge of each CRANK signal pulse, and a ratio of specified time intervals is compared to a threshold to detect crankshaft rock-back for controlling the pulse count direction.
    Type: Application
    Filed: July 26, 2006
    Publication date: January 31, 2008
    Inventors: Christopher I. McDaniel, Michael J. Frey