Patents by Inventor Roy Dwayne Justice

Roy Dwayne Justice 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).

  • Systems and methods for determining and displaying volumetric efficiency
    Patent number: 7546200
    Abstract: A system for determining and displaying a volumetric efficiency of an engine of an automobile includes an aftermarket display unit configured for installation into the automobile and a controller, the controller including a first memory configured to store calibration data associated with at least some of a plurality of OEM sensors of the engine and displacement data associated with the engine; a plurality of controller inputs coupled to the plurality of OEM sensors; and a controller output coupled to the aftermarket display unit. The controller is configured to execute program instructions to: read the sensor output; determine the volumetric efficiency based on the sensor output, the calibration data and the displacement data; and display the volumetric efficiency using the aftermarket display unit.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: June 9, 2009
    Inventor: Roy Dwayne Justice
  • SYSTEMS AND METHODS FOR DETERMINING AND DISPLAYING VOLUMETRIC EFFICIENCY
    Publication number: 20090112451
    Abstract: A system for determining and displaying a volumetric efficiency of an engine of an automobile includes an aftermarket display unit configured for installation into the automobile and a controller, the controller including a first memory configured to store calibration data associated with at least some of a plurality of OEM sensors of the engine and displacement data associated with the engine; a plurality of controller inputs coupled to the plurality of OEM sensors; and a controller output coupled to the aftermarket display unit. The controller is configured to execute program instructions to: read the sensor output; determine the volumetric efficiency based on the sensor output, the calibration data and the displacement data; and display the volumetric efficiency using the aftermarket display unit.
    Type: Application
    Filed: October 31, 2007
    Publication date: April 30, 2009
    Inventor: Roy Dwayne Justice