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:
Dec. 03, 2013
Filed:
Aug. 28, 2008
Michael Parmentier, Chatillon, BE;
Julien Schmitt, Kuntzig, FR;
Michael Parmentier, Chatillon, BE;
Julien Schmitt, Kuntzig, FR;
Delphi International Operations Luxembourg S.A.R.L., Luxembourg, LU;
Abstract
A selective catalytic reduction (SCR) catalyst control system and method for an engine is disclosed. Urea injection to an SCR catalyst is determined based on an SCR catalyst model, which determines a value of stored NHin the SCR catalyst based on the NOengine emission value, the SCR catalyst temperature, the quantity of urea supplied to the SCR catalyst and a pre-determined efficiency of conversion of NOgases. A target value of stored NHand the value of stored NHin the SCR catalyst is then used to determine a stored NHdifferential, which is then used to calculate urea injection.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile