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:
Nov. 19, 2019
Filed:
Dec. 12, 2017
Applicants:
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Inventors:
Min-Kyu Won, Gyeonggi-do, KR;
Hyung-Soo Do, Gyeonggi-do, KR;
Soo-Hyeok Kang, Gyeonggi-do, KR;
Dae-Woo Kim, Gyeonggi-do, KR;
Assignees:
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Primary Examiner:
Int. Cl.
CPC ...
F02D 13/00 (2006.01); F02D 41/00 (2006.01); F02D 13/02 (2006.01); F02D 41/14 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0052 (2013.01); F02D 13/0207 (2013.01); F02D 13/0215 (2013.01); F02D 13/0261 (2013.01); F02D 41/0062 (2013.01); F02D 41/0077 (2013.01); F02D 41/1446 (2013.01); F02D 41/1448 (2013.01); F02D 2200/0406 (2013.01);
Abstract
A method and apparatus for calculating an internal exhaust gas recirculation (EGR) amount of an engine include a continuously variable valve duration (CVVD) apparatus. The internal EGR amount is calculated by correcting a backflow gas amount based on a valve duration changed by operation of the continuously variable valve duration apparatus during valve overlap of an intake valve or an exhaust valve.