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:
Apr. 26, 2011
Filed:
Jan. 28, 2008
Method for triggering a regeneration event in a particulates filter of an internal combustion engine
John D. Williams, New Palestine, IN (US);
Tanto Sugiarto, W. Lafayette, IN (US);
Thomas M. Harris, Waterloo, IA (US);
George N. Simopoulos, Noblesville, IN (US);
John D. Williams, New Palestine, IN (US);
Tanto Sugiarto, W. Lafayette, IN (US);
Thomas M. Harris, Waterloo, IA (US);
George N. Simopoulos, Noblesville, IN (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A method for triggering a new regeneration event in a soot-trapping particulates filter disposed in an exhaust gas stream of an internal combustion engine, comprising the steps of determining instantaneous engine speed and engine load; determining instantaneous mass fractions for wet soot and for dry soot in the exhaust gas stream for the instantaneous engine speed and load; determining instantaneous concentrations of wet and dry soot particles in the exhaust gas; determining the rates of accumulation of wet soot and dry soot in the particulates filter; determining the total amounts of wet soot and dry soot accumulated in said soot-trapping device during all engine operation conditions since the latest previous regeneration event; and triggering the new regeneration event when the total amount of wet soot and dry soot exceeds a permissible value.