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:
Oct. 04, 2022
Filed:
Jan. 05, 2022
Hyundai Motor Company, Seoul, KR;
Kia Corporation, Seoul, KR;
Antowan Zyada, Superior Township, MI (US);
Kyoung Pyo Ha, Gyeonggi-do, KR;
Shengrong Zhu, Superior Township, MI (US);
Philip Zoldak, Superior Township, MI (US);
Jeffrey Hollowell, Superior Township, MI (US);
Mark Shirley, Albion, MI (US);
Nicholas Fantin, Superior Township, MI (US);
Hyundai Motor Company, Seoul, KR;
Kia Corporation, Seoul, KR;
Abstract
Methods and systems are described for combustion engine mode optimization. The system includes a combustion engine, a fuel delivery system, and a controller communicatively coupled to the combustion engine and the fuel delivery system. The controller selects a low temperature combustion mode based on the combustion engine being warmer than a predetermined temperature and low load conditions on the combustion engine. The low temperature combustion mode includes instructions that reduces an intake valve opening duration and an exhaust valve opening duration. The controller reduces the intake valve opening duration and the exhaust valve opening duration to create a delay between an intake valve opening duration and an exhaust valve opening duration in response to selecting the low temperature combustion mode. The delay increases a residual gas temperature in the combustion chamber and induces auto-ignition of fuel in the combustion chamber.