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:
Apr. 25, 2017
Filed:
Nov. 23, 2015
Applicant:
Hyundai Motor Company, Seoul, KR;
Inventor:
Hyo Kyung Lee, Anyang-si, KR;
Assignee:
HYUNDAI MOTOR COMPANY, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01); F02D 41/02 (2006.01); F01N 9/00 (2006.01); F01N 3/021 (2006.01); F01N 3/08 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0275 (2013.01); F01N 3/021 (2013.01); F01N 3/2066 (2013.01); F01N 9/00 (2013.01); F01N 3/0814 (2013.01); F01N 3/0842 (2013.01); F01N 3/0871 (2013.01); F01N 3/0885 (2013.01); F01N 2250/02 (2013.01); F01N 2250/12 (2013.01); F01N 2430/06 (2013.01); F01N 2560/025 (2013.01); F01N 2560/14 (2013.01); F01N 2570/14 (2013.01); F01N 2900/0416 (2013.01); F01N 2900/0422 (2013.01); F01N 2900/08 (2013.01); F01N 2900/1402 (2013.01); F01N 2900/1602 (2013.01); F01N 2900/1614 (2013.01); Y02T 10/47 (2013.01);
Abstract
A control method for improving nitrogen oxide purification performance (NO) includes starting NOregeneration, comparing first and second lambda values measured at first and second lambda sensors in a control unit, checking the lean NOtrap (LNT) temperature, and measuring a second time that has elapsed after the first and second lambda values are found to be the same, and checking whether the second time is greater than or equal to a predetermined time when it is observed that the temperature of the LNT is greater than or equal to the predetermined temperature value.