Patents by Inventor David Allen Dues

David Allen Dues 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 a default transmission input speed
    Patent number: 7120531
    Abstract: A default value of transmission input speed in a motor vehicle powertrain having an automatic-shift multi-gear ratio power transmission is continuously updated based on a measured value of the input speed and other reliable speed data including transmission output speed and engine speed. The default value is substituted for the measured input speed when a malfunction of the input speed sensor is detected, and transitions back to the measured input speed when the input speed sensor malfunction is no longer present.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: October 10, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: Steve L. Melby, Andrew D. Herman, Kenneth M. Simpson, David Allen Dues, Hallett D. Breidenbach
  • Method of determining a default transmission output speed
    Patent number: 7107134
    Abstract: A default value of transmission output speed in a motor vehicle powertrain having an automatic-shift multi-gear ratio power transmission is continuously updated based on a measured value of the output speed and other reliable speed data including transmission input speed and vehicle speed. The default value is substituted for the measured output speed when a malfunction of the output speed sensor is detected, and transitions back to the measured output speed when the output speed sensor malfunction is no longer present.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: September 12, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: Steve L. Melby, Andrew D. Herman, Kenneth M. Simpson, David Allen Dues, Hallett D. Breidenbach
  • Method of determining soak-related time intervals of an internal combustion engine
    Patent number: 6564622
    Abstract: An improved method of determining and preserving soak-related time intervals of an internal combustion engine resets a continuous timer at the end of each engine run period, and reads the value of the continuous timer at specified events during an ignition key cycle. The method measures and preserves the engine soak time preceding the current and previous ignition key cycle, and determines an extended soak time that includes intervals of engine operation that are too short to significantly affect the engine thermal and fuel vapor purge conditions. The determined soak-related times are then utilized by various engine control and/or diagnostic algorithms, such as a hot re-start fuel control algorithm.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: May 20, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Stephen F. Majkowski, Alton L. Schuessler, David Allen Dues, Nicholas Colella, Myron Harold Bell
  • Method of determining soak-related time intervals of an internal combustion engine
    Publication number: 20020002965
    Abstract: An improved method of determining and preserving soak-related time intervals of an internal combustion engine resets a continuous timer at the end of each engine run period, and reads the value of the continuous timer at specified events during an ignition key cycle. The method measures and preserves the engine soak time preceding the current and previous ignition key cycle, and determines an extended soak time that includes intervals of engine operation that are too short to significantly affect the engine thermal and fuel vapor purge conditions. The determined soak-related times are then utilized by various engine control and/or diagnostic algorithms, such as a hot re-start fuel control algorithm.
    Type: Application
    Filed: May 30, 2001
    Publication date: January 10, 2002
    Inventors: Stephen F. Majkowski, Alton L. Schuessler, David Allen Dues, Nicholas Colella, Myron Harold Bell