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:
Feb. 27, 2018
Filed:
Dec. 01, 2015
Applicant:
Hyundai Motor Company, Seoul, KR;
Inventor:
In Soo Jung, Suwon-si, KR;
Assignee:
HYUNDAI MOTOR COMPANY, Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/28 (2006.01); F02D 35/02 (2006.01); F02D 41/22 (2006.01); F02D 41/40 (2006.01);
U.S. Cl.
CPC ...
F02D 35/023 (2013.01); F02D 41/402 (2013.01); F02D 41/221 (2013.01); F02D 41/401 (2013.01); F02D 41/403 (2013.01); F02D 2041/224 (2013.01); F02D 2041/288 (2013.01); F02D 2200/025 (2013.01); Y02T 10/44 (2013.01);
Abstract
A method of calculating a nitrogen oxide (NOx) mass reduced from a lean NOx trap (LNT) during regeneration includes calculating a C3H6 mass flow used to reduce the NOx among a C3H6 mass flow flowing into the LNT of an exhaust purification device, calculating a NH3 mass flow used to reduce the NOx among a NH3 mass flow flowing into the LNT, calculating a reduced NOx mass flow based on the C3H6 mass flow used to reduce the NOx and the NH3 mass flow used to reduce the NOx, and calculating the reduced NOx mass by integrating the reduced NOx mass flow over a regeneration period.