Patent ID: 8069742

Claim:
A multi-group transmission of a motor vehicle comprising at least two transmission groups ( 2 , 3 ) arranged in a drivetrain having a means for supporting traction force during gearshifts, a clutch mechanism ( 16 ) comprising first, second and third friction clutches ( 40 , 41 , 42 ) arranged between a drive motor ( 5 ) and a transmission input ( 7 ), the first friction clutch ( 40 ) being an intermediate-gear clutch and having an input side connected to a driveshaft ( 6 ) of the drive motor ( 5 ) and an output side connected to a main transmission shaft ( 30 ) which is at least actively connected with a transmission output shaft ( 36 ), the second friction clutch ( 41 ) being a change-under-load clutch and having an input side connected to the driveshaft ( 6 ) of the drive motor ( 5 ) and an output side connected to a loose wheel ( 14 ) of a second gear constant (i k2 ) of a splitter transmission group ( 2 ), the third friction clutch ( 42 ) being a change-under-load clutch and having an input side connected with the driveshaft ( 6 ) of the drive motor ( 5 ) and an output side connected with a loose wheel ( 11 ) of a first gear constant (i k1 ) of the splitter transmission group ( 2 ), and the driveshaft ( 6 ) of the drive motor ( 5 ) being directly connectable, via the first friction clutch ( 40 ), to the main transmission shaft ( 30 ) and the first and the second gear constants (i k1 , i k2 ) of the splitter transmission group ( 2 ) being shiftable under load by the second and the third friction clutches ( 41 , 42 ).