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. 29, 2008
Filed:
Nov. 09, 2004
Gopichandra Surnilla, West Bloomfield, MI (US);
Christian T. Goralski, Jr., St. Paul, MN (US);
Shane Elwart, Ypsilanti, MI (US);
Grant Alan Ingram, West Lafayette, IN (US);
Gopichandra Surnilla, West Bloomfield, MI (US);
Christian T. Goralski, Jr., St. Paul, MN (US);
Shane Elwart, Ypsilanti, MI (US);
Grant Alan Ingram, West Lafayette, IN (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Disclosed is a method for controlling a lean burn engine coupled to an emission control device that stores oxidants during lean operation, and reacts the stored oxidants during stoichiometric or rich operation, the method comprising estimating amounts of NOx stored in the device along a plurality of axial positions of the device and adjusting an operating parameter based on said estimate.