Patents by Inventor Jeffrey R. Dec

Jeffrey R. Dec 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 apparatus to monitor an output speed sensor during operation of an electro-mechanical transmission
    Patent number: 8027771
    Abstract: There is provided a method to monitor a sensing system adapted to monitor an output of an electro-mechanical transmission. This includes monitoring rotational speed of a wheel operatively connected to a driveline operatively connected to the output of the electro-mechanical transmission. A first expected output of the transmission is determined based upon the output of the first sensor. A second expected output of the transmission is determined based upon a rotational speed of a torque-generative device operatively connected to the transmission. The first and second expected outputs and an output of the sensing system adapted to monitor the output of the electro-mechanical transmission are compared.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: September 27, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Ryan D. Martini, Charles J. Van Horn, Peter E. Wu, Andrew M. Zettel, Rezaul Karim, Jeffrey R. Dec, Sailaja Paladugu
  • METHOD AND APPARATUS TO MONITOR AN OUTPUT SPEED SENSOR DURING OPERATION OF AN ELECTRO-MECHANICAL TRANSMISSION
    Publication number: 20090076679
    Abstract: There is provided a method to monitor a sensing system adapted to monitor an output of an electro-mechanical transmission. This includes monitoring rotational speed of a wheel operatively connected to a driveline operatively connected to the output of the electro-mechanical transmission. A first expected output of the transmission is determined based upon the output of the first sensor. A second expected output of the transmission is determined based upon a rotational speed of a torque-generative device operatively connected to the transmission. The first and second expected outputs and an output of the sensing system adapted to monitor the output of the electro-mechanical transmission are compared.
    Type: Application
    Filed: September 13, 2007
    Publication date: March 19, 2009
    Inventors: Ryan D. Martini, Charles J. Van Horn, Peter E. Wu, Andrew M. Zettel, Rezaul Karim, Jeffrey R. Dec, Sailaja Paladugu