Gearbox, for a motor vehicle with a twin clutch transmission, has two gear sections with a coupling to couple and uncouple their drive shafts

摘要

The gearbox, with a twin clutch transmission (3), has a gear section (4,5,15,16,18,19,21,23) with a drive shaft, a gear section (8,9,10,13,14,17,18,20,22) with a drive shaft (6) and an inner gear shift mechanism. A coupling (26) can couple the drive shafts together. The inner gear shift mechanism operates between one setting using a gear ratio in the first gear section with the coupling open and a setting where a selected gear ratio is used with the coupling closed.