Patent 7565895 was granted and assigned to Hyundai Motor Company on July, 2009 by the United States Patent and Trademark Office.
A method and system of controlling a swirl control valve includes determining whether a current condition is in Tip Out by detecting positions of VGT vanes and an EGR valve, fully opening the swirl control valve if the current condition is in Tip Out, and not opening the swirl control valve if the current condition is not in Tip Out.