Arrangement for operating a drive train in a vehicle

A vehicle (10) includes a first clutch (46) interposed between a prime mover (12) of the vehicle and a certain drive wheel (24, 26, 28, 30) of the vehicle is arranged. The first clutch is operable to connect the main drive with the particular driving wheel and separate therefrom. A second clutch (32, 34) is arranged between the drive train and the determined driving wheel and operable to connect the specific drive wheel to the drive train and separate from this, when the first clutch is engaged. A control system (48) and methods are to the effect adapted to control the operation of at least the first and the second clutch. By selectively controlling the release couplings, the arrangement can be brought into a four-wheel drive mode, based on certain criteria in an active version automatically. In a passive version of the vehicle operator may be indicating that the operating mode is four-wheel drive is recommended.