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:
Sep. 15, 2015
Filed:
Oct. 15, 2009
Kevin Andrew Gady, Ypsilanti, MI (US);
Anupam Gangopadhyay, Mrc Nagar, IN;
Kevin Andrew Gady, Ypsilanti, MI (US);
Anupam Gangopadhyay, Mrc Nagar, IN;
Other;
Abstract
A system includes an injector control module and an SCR optimization module. The injector control module controls an amount of ammonia (NH) stored in a selective catalytic reduction (SCR) catalyst to maintain a first storage level. The SCR optimization module determines whether the first storage level maximizes a conversion efficiency of the SCR catalyst at a first temperature and minimizes a probability of NHslip when the temperature of the SCR catalyst transitions from the first temperature to a second temperature. The injector control module controls the amount of NHstored in the SCR catalyst to maintain a second storage level when the second storage level maximizes the efficiency of the SCR catalyst relative to the first storage level and minimizes the probability of NHslip relative to the first storage level.