| 摘要 |
A multi-stage automatic transmission comprises an input shaft (AN), an output shaft (AB), three individual planetary gear trains (RS1, RS2, RS3), which are adjacently arranged in a row, and five shifting elements (A to E). A sun gear (SO3) of the third planetary gear train (RS3) can be fixed to a transmission case (GG) via the first shifting element (A). The input shaft (AN) is connected to a sun gear (SO2) of the second planetary gear train (RS2) and can, via the second shifting element (B), be connected to a sun gear (SO1) of the first planetary gear train (RS1) and/or can, via the fifth shifting element (E), be connected to a web (ST1) of the first planetary gear train (RS1). Alternatively, the sun gear (SO1) of the first planetary gear train (RS1) can be fixed to the transmission case (GG) via the third shifting element (C) and/or the web (ST1) of the first planetary gear train (RS1) can be fixed to the transmission case (GG) via the fourth shifting element (D). The output shaft (AB) is connected to an internal gear (HO1) of the first planetary gear train (RS1)and to one of the webs (ST2, ST3) of the second or third planetary gear train (RS2, RS3). The second and fifth shifting elements (B, E) form a subassembly with one disk packet (200, 500) and with one servo device (210, 510) as well as with a disk support (ZYLBE), which is shared by both shifting elements (B, E). The disk packet (200) of the second shifting element (B) has a larger diameter than that of the disk packet (500) of the fifth shifting element (E). |
