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. 12, 2021
Filed:
Oct. 23, 2019
Applicants:
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Inventor:
Min-Kyu Won, Hwaseong-si, KR;
Assignees:
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2006.01); F01L 1/047 (2006.01); F02D 41/22 (2006.01); F02D 13/02 (2006.01); F01L 13/00 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0002 (2013.01); F01L 1/047 (2013.01); F01L 13/0015 (2013.01); F02D 13/0207 (2013.01); F02D 41/221 (2013.01); F02D 41/222 (2013.01); F01L 2013/0084 (2013.01); F01L 2800/12 (2013.01); F01L 2800/14 (2013.01); F02D 2041/001 (2013.01); F02D 2200/024 (2013.01); F02D 2200/0402 (2013.01);
Abstract
A method for an alternate control of a continuously variable valve duration (CVVD) malfunction may include a CVVD failsafe control to resolve a calculation error of a cylinder charge amount due to a hardware failure of a CVVD system with the cylinder charge amount determined by any one of flow rate alternate, flow rate deviation correction, and valve duration update if the hardware failure is recognized by a CVVD controller, and to apply the cylinder charge amount to secure an air amount for a combustion chamber.