Patent ID: 6592484
Filing Date: 2003-07-15
Classification: B60K,B60W,F16H,Y02T,Y10S

Abstract:
A transmission comprising:an engine having an engine drive shaft; an electric driving mechanism selectively operable as an electric motor and as a generator, said electric driving mechanism having a motor drive shaft; an electric energy storage means in electrical communication with said electric driving mechanism; a compound planetary gear set, said compound planetary gear set further comprising an input planetary gear train having a plurality of input gear train members, and an output planetary gear train having a plurality of output gear train members; an output shaft operatively connected to said compound planetary gear set; a first clutch positioned to selectively operatively connect said engine drive shaft to a first input gear train member; a second clutch positioned to selectively operatively connect said engine drive shaft to a first output gear train member; a third clutch positioned to selectively operatively connect said first output gear train member to a transmission case; and a fourth clutch positioned to selectively operatively connect said motor drive shaft and one of each of said input gear train members and said output gear train members to said transmission case; said first input gear train member comprising an input planetary gear carrier operatively connected to a plurality of input planetary gears, said input gear train member further comprising an input sun gear and an input ring gear, each of said input sun gear and said input ring gear engaging said plurality of input planetary gears; and said first output gear train member comprising an output ring gear, said output gear train members further comprising an output sun gear and a plurality of output planetary gears engaging said output sun gear and said output ring gear and being operatively connected to an output planetary gear carrier.