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:
Jul. 16, 2013
Filed:
Feb. 04, 2011
System and method for estimating an amount of particulate matter accumulated in a particulate filter
Raffaello Ardanese, Troy, MI (US);
Rebecca J. Darr, Milford, MI (US);
Michelangelo Ardanese, Ann Arbor, MI (US);
Paul Jasinkiewicz, Northville, MI (US);
Christopher Whitt, Howell, MI (US);
Raffaello Ardanese, Troy, MI (US);
Rebecca J. Darr, Milford, MI (US);
Michelangelo Ardanese, Ann Arbor, MI (US);
Paul Jasinkiewicz, Northville, MI (US);
Christopher Whitt, Howell, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
An amount of particulate matter accumulated in a particulate filter of an exhaust system is estimated by preloading a memory location with a plurality of hybrid models. Each hybrid model estimates an amount of particulate matter accumulated in the particulate filter between a pair of operating points. An estimated amount of particulate matter accumulated in the particulate filter is stored in the memory location for each hybrid model. Each hybrid model is ranked based on estimation accuracy during operating conditions and the highest ranked hybrid model is selected. The estimated amount of particulate matter accumulated in the particulate filter corresponding to the highest ranked hybrid model is added to the soot estimation value stored in the memory location that corresponds to a ranked hybrid model to provide a soot estimation value of a cumulative estimated amount of particulate matter contained in the particulate filter for the ranked hybrid model.