Patent 7892136 was granted and assigned to Hyundai Motor Company on February, 2011 by the United States Patent and Trademark Office.
The present invention provides gear train of an automatic transmission for a vehicle having a first planetary gear set being a double pinion planetary gear set, a second planetary gear set being a single pinion planetary gear set, a third planetary gear set being a Ravigneaux planetary gear set, with five clutches and two brakes, which realizes ten forward speeds and three reverse speeds.