Method for operating a drive train

摘要

#CMT# #/CMT# The method involves providing an automatic transmission (2) with five switching units, where three units are closed and two units are opened for torque- and/or power transmission in forward and/or reverse gears. Three switching units are alternatively opened and closed, during implementation of the one of stepping and/or shifting operations. One of the switching units is controlled during transition from one of the operation to other operation over a minimum or maximum range. The fourth switching unit is closed and/or opened during implementation of two operations. #CMT#USE : #/CMT# Used for operating a drive train of a motor vehicle. #CMT#ADVANTAGE : #/CMT# The drive train operating method is applicable for all automatic transmissions with five switching units in the motor vehicle. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic diagram of a drive train of a motor vehicle. 1 : Drive aggregate 2 : Automatic transmission 3 : Wheels 4, 5 : Power flow directions.