DUAL-CLUTCH TRANSMISSION

摘要

The invention relates to a dual-clutch transmission for selecting at least ten sequentially selectable forward transmission gears (Ca-Cd, V1a-V10a, V1b-V10b, V1c-V10c, V1d-V10d, Oa-Od), comprising a first input shaft (11a-11d) for connecting to a first powershift clutch (K1a-K1d), a second input shaft (12a-12d) for connecting to a second powershift clutch (K2a-K2d), a first countershaft (13a-13d) parallel to and at an offset to the input shafts (11a-11d, 12a-12d), a second countershaft (14a-14d), parallel to and at an offset to the input shafts (11a-11d, 12a-12d), at least six gear levels (Z1a-Z6a; Z1b-Z6b; Z1c-Z6c; Z1d-Z6d), wherein at least one of the gear levels (Z3a; Z3b; Z1c; Z1d) has a free gear (Z34a; Z34b; Z14c; Z14d) arranged coaxially with the input shafts (11a-11d, 12a-12d), and at least ten selecting units (S1a-S11a; S1b-S11b; S1c, S4c-S8c, S10c-S13c; S1d, S3d-S8d, S10d-S12d), wherein one of the selecting units (S5a-S5d) is provided for connecting the at least one free gear (Z34a; Z34b; Z14c; Z14d) and the second input shaft (12a-12d) to each other for conjoint rotation.