| 摘要 |
<p>#CMT# #/CMT# The transmission (1) has a splitter transmission (2) and a main transmission (3) arranged in a drive train, and an electromagnetic clutch (16) provided as a change-under-load unit. An active connection is formed between a drive shaft (6) and a main transmission shaft (30) or a transmission output shaft (36). The transmissions (2, 3) and a range transmission (4) are provided such that an upstream, two-gear splitter group, multi-gear main group are made as countershaft transmissions with counter-shafts (8, 9). A downstream range group is made as a planetary transmission. #CMT# : #/CMT# An independent claim is also included for a method for operating a multi-group transmission of a motor vehicle. #CMT#USE : #/CMT# Multi-group transmission for a motor vehicle (claimed) e.g. passenger motor vehicle, and medium-weight or heavy utility vehicle. #CMT#ADVANTAGE : #/CMT# The multi-group transmission can be shifted under load or bridged utilizing additional gear sets through power-branched intermediate gears in the force flow, thus compensating or preventing traction force interruptions in shift operations of the groups, hence ensuring transmission operational comfortness without actuating a starting element during the gear change or when a separate starting element is eliminated. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view illustrating a transmission layout of a multi-group transmission of a motor vehicle with electromagnetic clutches for traction-force-supported shift operations. 1 : Multi-group transmission 2 : Splitter transmission 3 : Main transmission 4 : Range transmission 6 : Drive shaft 8, 9 : Countershafts 16 : Electromagnetic clutch 30 : Main transmission shaft 36 : Transmission output shaft.</p> |
