Patents by Inventor Christopher J. Dobies

Christopher J. Dobies 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).

  • Belt slip diagnostic system for accessory and hybrid electric drives
    Patent number: 7974749
    Abstract: A diagnostic system for a vehicle includes a first sensor that generates a first status signal, which is indicative of an engine speed of an engine. A second sensor generates a second status signal that is indicative of an actual accessory speed of an accessory. The accessory is coupled to the engine via a belt system. A control module determines an expected accessory speed based on the engine speed and determines a residual accessory speed based on the expected and actual accessory speeds. The control module also detects a fault in the belt system based on the residual accessory speed.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: July 5, 2011
    Inventors: Andrew M. Zettel, John F. Van Gilder, Rick H. Schroeder, Michael J. Taljonick, Christopher J. Dobies
  • Belt slip diagnostic system for accesory and hybrid electric drives
    Publication number: 20080021603
    Abstract: A diagnostic system for a vehicle includes a first sensor that generates a first status signal, which is indicative of an engine speed of an engine. A second sensor generates a second status signal that is indicative of an actual accessory speed of an accessory. The accessory is coupled to the engine via a belt system. A control module determines an expected accessory speed based on the engine speed and determines a residual accessory speed based on the expected and actual accessory speeds. The control module also detects a fault in the belt system based on the residual accessory speed.
    Type: Application
    Filed: May 29, 2007
    Publication date: January 24, 2008
    Inventors: Andrew M. Zettel, John F. Van Gilder, Rick H. Schroeder, Michael J. Taljonick, Christopher J. Dobies