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Electrically heated particulate filter restart strategy

United States Patent

7,975,469
July 12, 2011
View the Complete Patent at the US Patent & Trademark Office
A control system that controls regeneration of a particulate filter is provided. The system generally includes a propagation module that estimates a propagation status of combustion of particulate matter in the particulate filter. A regeneration module controls current to the particulate filter to re-initiate regeneration based on the propagation status.
Gonze; Eugene V. (Pinckney, MI), Paratore, Jr.; Michael J. (Howell, MI), Ament; Frank (Troy, MI)
GM Global Technology Operations LLC (
11/ 803,679
20080282678
May 15, 2007
STATEMENT OF GOVERNMENT RIGHTS This invention was produced pursuant to U.S. Government Contract No. DE-FC-04-03 AL67635 with the Department of Energy (DoE). The U.S. Government has certain rights in this invention.