Dual clutch transmission for e.g. lorry, has countershaft drive connected with output shaft or input via gear wheel stage, which is directly connected with same element of auxiliary transmission as output shaft and/or with output shaft

摘要

The transmission (10) has an area auxiliary transmission (21) arranged between a main shaft (13) and an output shaft (12) of the transmission. A countershaft (16) is drive connected with the output shaft or an input of the auxiliary transmission via a switchable gear wheel stage (ZA7) by bypassing the auxiliary transmission. The switchable gear wheel stage is directly connected with a same element of the auxiliary transmission as the output shaft and/or with the output shaft. An input shaft (11) is connected with the countershaft by a switchable clutch (18) e.g. wet-running lamella clutch. An independent claim is also included for a method for operating a dual clutch transmission.