The present invention relates to a transfer case for distribution of a driving
force on a first axle (9) and a second axle (8) of a motor vehicle.
The transfer case (1) is arranged between the first axle (9) and
the second axle (8). The transfer case (1) includes a planetary gear
(3) with a central gear (4) (for example, a sun gear), a central
gear (5) (for example, an internal gear), and a planetary pinion support
(6) with multiple planetary pinions (7), as well as an electrical
machine (2). The electrical machine (2) is connected with an element
(4, 5, 6) of the planetary gear (3). The distribution of the driving
force on the two axles (8, 9) takes place according to the present invention
by means of controlling the electrical machine (2), in order to produce
a predetermined moment of rotation on of the elements of the planetary gear (3),
whereby the moment of rotation of the two other elements of the planetary gear,
which is connected respectively with one of the axles, are fixed.