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. 07, 2026
Filed:
Aug. 13, 2024
Hyundai Motor Company, Seoul, KR;
Kia Corporation, Seoul, KR;
Jinyoung Jung, Hwaseong-Si, KR;
Sangyeon Han, Hwaseong-Si, KR;
Young Nam Kim, Hwaseong-Si, KR;
You Sang Son, Hwaseong-Si, KR;
Back Sik Kim, Hwaseong-Si, KR;
Sangjae Park, Hwaseong-Si, KR;
Hyundai Motor Company, Seoul, KR;
Kia Corporation, Seoul, KR;
Abstract
An engine control system includes an engine, an intake valve, an ignition plug mounted in a combustion chamber, an exhaust valve; a dual continuously variable valve duration device configured to adjust an intake duration of the intake valve and an exhaust duration of the exhaust valve; a turbine mounted downstream of the engine; a warm-up catalyst (WCC) mounted downstream of the turbine; a gasoline particulate filter (GPF) mounted downstream of the warm-up catalyst; and a controller operably connected to the ignition plug and the dual continuously variable valve duration device and configured to adjust an ignition timing of the ignition plug, the intake duration, and the exhaust duration based on a driving condition of a vehicle, wherein under a condition that lambda (λ) is 1, the controller is configured to adjust the exhaust duration so that an exhaust valve open timing is retarded, and an intake valve close (IVC) timing is maintained to maintain a valve overlap period.