Patents by Inventor Marc Bryan Center

Marc Bryan Center 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).

  • Control system for NOx control for cam phaser and/or EGR systems
    Patent number: 6899093
    Abstract: A vehicle control system regulates oxides of nitrogen levels in vehicle emissions. Recirculation of exhaust gas in an engine is controlled with an exhaust gas regulator valve and/or a cam phaser. An oxides of nitrogen sensor determines the level of oxides of nitrogen levels in the exhaust gas and communicates the information to a vehicle controller. The controller determines if the oxides of nitrogen levels are within a predetermined threshold according to a lookup table. The controller adjusts the valve and/or cam phaser if the oxides of nitrogen levels are not within the threshold.
    Type: Grant
    Filed: September 17, 2003
    Date of Patent: May 31, 2005
    Assignee: General Motors Corporation
    Inventor: Marc Bryan Center