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. 13, 2018
Filed:
Dec. 01, 2015
Applicant:
Hyundai Motor Company, Seoul, KR;
Inventors:
JangSu Lee, Gyeonggi-do, KR;
Seungcheol Han, Chungcheongbuk-do, KR;
Assignee:
Hyundai Motor Company, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 21/00 (2006.01); F02M 26/47 (2016.01); F02D 21/08 (2006.01); F02D 35/02 (2006.01); F02M 26/01 (2016.01); F02D 41/00 (2006.01); F02D 41/14 (2006.01); F02M 26/05 (2016.01); F02M 26/23 (2016.01); F02D 13/02 (2006.01);
U.S. Cl.
CPC ...
F02M 26/47 (2016.02); F02D 13/0207 (2013.01); F02D 21/08 (2013.01); F02D 35/02 (2013.01); F02D 41/0062 (2013.01); F02D 41/1446 (2013.01); F02D 41/1448 (2013.01); F02D 41/1458 (2013.01); F02M 26/01 (2016.02); F02M 26/05 (2016.02); F02M 26/23 (2016.02); F02D 2041/001 (2013.01); F02D 2200/0402 (2013.01); F02D 2200/0406 (2013.01); F02D 2200/0411 (2013.01); F02D 2200/0614 (2013.01); F02D 2200/101 (2013.01); Y02T 10/47 (2013.01);
Abstract
Provided is a method for calculating an oxygen concentration in a combustion chamber, including: calculating volume efficiency of the combustion chamber while a variable valve lift is in an on state and the volume efficiency of the combustion chamber and the volume of internal EGR from the volume of the combustion chamber while the variable valve lift is in an off state; and calculating a mass of the internal EGR from the pressure of an exhaust manifold, the temperature of the exhaust manifold, and the volume of the internal EGR.