| 摘要 |
PROBLEM TO BE SOLVED: To simplify a hydraulic pressure supply oil passage to each clutch.SOLUTION: In an automatic transmission including an input portion 12, an output portion 13, single pinion-type first, second and forth gear sets PG1, PG2, PG4, a double pinion-type third gear set PG3, first to third clutches CL1-CL3, and first and second brakes BR1, BR2, a first sun gear and a second sun gear, a first carrier and a third ring gear, a first ring gear and a forth carrier, a second ring gear and a third sun gear, the input portion and a second carrier, and the output portion, and the first carrier and the third ring gear are respectively constantly connected. The third clutch connects and disconnects the third carrier and a forth sun gear, the second clutch connects and disconnects the second ring gear, and the third sun gear and the forth sun gear, the third clutch connects and disconnects the input portion, and the second carrier and the forth sun gear, the first brake connects and disconnects the first sun gear and the second sun gear, and a transmission case, and the second brake connects and disconnects the forth ring gear and the transmission case.SELECTED DRAWING: Figure 1 |
