ALEXANDRIA, Va., July 14 -- United States Patent no. 12,679,330, issued on July 14, was assigned to HYUNDAI MOTOR COMPANY (Seoul, South Korea) and KIA Corp. (Seoul, South Korea).

"Hybrid electric vehicle and method of controlling engine speed for the same" was invented by Seo Ho Lee (Hwaseong-si, South Korea), Hyun Jin Park (Busan, South Korea), Jae Young Choi (Seoul, South Korea) and Kwon Chae Chung (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a hybrid electric vehicle and a method for controlling an engine speed of a hybrid electric vehicle. In particular, the method includes: determining, when an engine on one end and a first motor are directly connected and while drivi...