Patents by Inventor Dimitri Karatsinides

Dimitri Karatsinides 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).

  • Determining sliding camshaft actuator pin position based on engine crankshaft angle
    Patent number: 10344734
    Abstract: A method of determining a sliding camshaft actuator pin position based on engine crankshaft angle includes commanding a sliding camshaft actuator to perform a valve step shift, and monitoring an actuator's pin position during the valve step shift command. At least one crank angle is measured when the actuator pin position reaches or exceeds at least one predetermined pin position threshold and at least one remedial action is performed when the actuator pin position does not correlate to the at least one measured crank angle.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: July 9, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Timothy P Philippart, Douglas R Verner, Dimitri Karatsinides, Timothy Karnjate
  • DETERMINING SLIDING CAMSHAFT ACTUATOR PIN POSITION BASED ON ENGINE CRANKSHAFT ANGLE
    Publication number: 20190003446
    Abstract: A method of determining a sliding camshaft actuator pin position based on engine crankshaft angle includes commanding a sliding camshaft actuator to perform a valve step shift, and monitoring an actuator's pin position during the valve step shift command. At least one crank angle is measured when the actuator pin position reaches or exceeds at least one predetermined pin position threshold and at least one remedial action is performed when the actuator pin position does not correlate to the at least one measured crank angle.
    Type: Application
    Filed: June 29, 2017
    Publication date: January 3, 2019
    Inventors: Timothy P. Philippart, Douglas R. Verner, Dimitri Karatsinides, Timothy Karnjate