| 摘要 |
A multi-group transmission of a motor vehicle which includes at least two transmission groups arranged in a drivetrain and a way for supporting traction force during gearshifts such that traction-force gearshifts are maintained with improved shifting comfort at comparatively low cost, little design effort and compact installation space demands. At least one electromagnetic clutch is a change-under-load unit by which, bypassing the force flow of at least one main group made as a gear-change transmission, an active connection can be formed between a driveshaft and a main transmission shaft or a transmission output shaft. During a gearshift operation, an active connection is temporarily made between a driveshaft and a main transmission shaft or a transmission output shaft by way of at least one electromagnetic clutch designed as a change-under-load unit.
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