| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce packaging difficulties in a multi-speed automatic transmission while enhancing a vehicle's fuel efficiency and drivability.SOLUTION: A multi-speed automatic transmission 10 comprises: a first planetary gear set P1 including a first sun gear S1, a first pinion gear set N1, a first carrier X1 that rotatably supports the first pinion gear set, and a first ring gear R1, in which the first sun gear meshes with the first pinion gear set, and the first pinion gear set meshes with the first sun gear and the first ring gear; and a second planetary gear set P2 including a second sun gear S2, a second pinion gear set N2, a second carrier X2 that rotatably supports the second pinion gear set, and a second ring gear R2, in which the second sun gear meshes with the second pinion gear set, and the second pinion gear set meshes with the second sun gear and the second ring gear.</p> |
