| 摘要 |
The invention relates to a multistage transmission, in particular for a motor vehicle, said transmission being provided at least structurally for selecting at least twelve forward transmission gears (V1-V10, V1/2, V2/3) with different step-up ratios. The multistage transmission has four operatively interconnected planetary gear stages (P1, P2, P3, P4), a transmission input shaft (11) for attaching an internal combustion engine, a transmission output shaft (12) for attaching drive wheels, four clutch units (S1, S3, S5, S7), each of which comprises two clutch elements (S11, S12, S31, S32, S51, S52, S71, S72), and three brake units (S2, SA, S6), each of which comprises one clutch element (S21, S41, S61). |
