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:
Sep. 14, 2011
Jin Ha Lee, Seoul, KR;
Jin Woo Park, Suwon, KR;
Christopher Severin, Aachen, DE;
Thomas Wittka, Aachen, DE;
Jin Ha Lee, Seoul, KR;
Jin Woo Park, Suwon, KR;
Christopher Severin, Aachen, DE;
Thomas Wittka, Aachen, DE;
HYUNDAI MOTOR COMPANY, Seoul, KR;
KIA MOTORS CORPORATION, Seoul, KR;
FEV MOTORENTECHNIK GMBH, Aachen, DE;
Abstract
A method is provided for predicting NOx loading at a DeNOx catalyst by which a NOx amount actually stored in the DeNOx catalyst can be precisely predicted and to an exhaust system which controls a regeneration timing of the DeNOx catalyst and amount of a reducing agent which is injected by using the method. The method may include calculating mass flow of NOx stored at the DeNOx catalyst, calculating mass flow of NOx thermally released from the DeNOx catalyst, calculating mass flow of NOx chemically released from the DeNOx catalyst, and calculating NOx amount actually stored at the DeNOx catalyst by using the mass flow of NOx stored at the DeNOx catalyst, the mass flow of NOx thermally released from the DeNOx catalyst, and the mass flow of NOx chemically released from the DeNOx catalyst.