Patent ID: 7736262
Filing Date: 2010-06-15
Classification: F16H

Abstract:
1. A power train of an automatic transmission, comprising: a first input unit including a first operating member, a second operating member, and a third operating member; a second input unit including a fourth operating member, a fifth operating member, and a sixth operating member; a first output unit including a seventh operating member, an eighth operating member, and a ninth operating member; a second output unit including a tenth operating member, an eleventh operating member, and a twelfth operating member; and a plurality of friction members that connect operating members of the first and second input units and the first and second output units to an input shaft, and other operating member of the first and second input units and the first and second output units to a case, wherein the first operating member is selectively connected to the input shaft, the second operating member is connected with the sixth operating member, the seventh operating member, and the eleventh operating member, the third operating member is connected to the fifth operating member that is selectively connected to the input shaft or selectively fixed to the case, the fourth operating member is selectively connected to the input shaft or selectively fixed to the case, the ninth operating member is selectively fixed to the case, the tenth operating member is selectively fixed to the case, two operating members of the first output unit are selectively connected or two operating members of the second output unit are selectively connected, and the eighth operating member is connected to the twelfth operating member and outputs twelve forward speeds and three reverse speeds.