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:
Jan. 24, 2017
Filed:
Dec. 01, 2015
Hyundai Motor Company, Seoul, KR;
Fev Gmbh, Aachen, DE;
Jin Woo Park, Suwon-si, KR;
Jin Ha Lee, Seoul, KR;
Alexander Vovk, Aachen, DE;
Joschka Schaub, Aachen, DE;
Thomas Wittka, KornelimĂĽnster, DE;
HYUNDAI MOTOR COMPANY, Seoul, KR;
FEV GMBH, Aachen, DE;
Abstract
A system for purifying an exhaust gas includes an engine, a lean NOx trap (LNT) mounted on the exhaust pipe, a dosing module mounted at the exhaust pipe downstream of the LNT, a selective catalytic reduction (SCR) catalyst mounted at the exhaust pipe downstream of the dosing module, and a controller for performing a denitrification (DeNOx) share between the LNT and the SCR catalyst according to a driving condition of the engine, wherein the controller predicts a NOx purifying ratio of the SCR catalyst according to the driving condition of the engine and adjusts a regeneration efficiency of the LNT based on an actual NOx purifying ratio of the SCR catalyst.