The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 2015
Filed:
Jun. 27, 2012
Christopher C. Swoish, Lapeer, MI (US);
Douglas Christopher Sarsen, Howell, MI (US);
Christopher Whitt, Howell, MI (US);
Thomas Larose, Jr., Howell, MI (US);
Christopher C. Swoish, Lapeer, MI (US);
Douglas Christopher Sarsen, Howell, MI (US);
Christopher Whitt, Howell, MI (US);
Thomas Larose, Jr., Howell, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
An internal combustion engine includes an intake air compressor system and is fluidly coupled to an exhaust aftertreatment system having a particulate filter. A method for operating the internal combustion engine includes determining a total engine-out soot generation based upon a summation of a steady-state engine-out soot generation rate and an engine-out soot generation rate correction. The engine-out soot generation rate correction is either zero when the intake air compressor system is closed-loop controlled or a rate based upon a deviation between an actual boost pressure and an expected boost pressure from the intake air compressor system. The particulate filter is regenerated when the total engine-out soot generation exceeds a predetermined threshold.