A 6-speed power train of an automatic transmission

By that direct connection to the input shaft through the Ravi third sun gear (S3) of the new planetary gear set (LPG), the clutch, the torque is input over one days: by making it possible to keep the (1: 1), to keep the durability of the third sun gear At the same time, Ravi New planetary gear set (LPG) is so as to enhance the power transmission efficiency to include only direct contrast input; The sun gear is the third type element that is fixed to the transmission casing and a permanent fixing element of the first operating element, the planet carrier, and a speed reduction factor in a second operating element, the ring gear is connected to the variable via a direct connection or a clutch to the input shaft simple to implement three operating elements in combination to the operating element planetary gear set; Share the ring gear and the planet carrier, respectively, and the shared ring gear is and the sixth operating element, an output element, the shared planet carrier, which is to the fifth operation elements, the input element is a variable linked to the input shaft through the clutch, a sun gear is the other one of the sun gear does not, share the seventh working elements, the input element is a variable linked to the input shaft through a clutch that is not shared is variable via a direct connection or clutches in the second operating element of the simple planetary gear set combined in a fourth operating element is connected to provide a six-speed power train of an automatic transmission, characterized in that to implement the forward sixth speed and one reverse gear range in the through the compound planetary gear set that implements the four operating elements. Automatic transmission. clutch. Planetary gear set