A drive system which has a drive unit with a drive shaft; a centrifugal
mass arrangement, which is mounted on the drive shaft; and an electrical
machine, comprising a stator arrangement and a rotor arrangement, where
the rotor arrangement is mounted on the centrifugal mass arrangement, and
where the stator arrangement and the rotor arrangement are adjacent to
each other in the radial direction. So that optimum use can be made of
the space available inside the drive unit, and so that the overall length
of the drive unit required in the axial direction relative to the axis of
rotation (A) can be kept as short as possible, the centrifugal mass
arrangement has a contour such that, relative to the axis of rotation
(A), a receiving space (71) is formed radially inside the electrical
machine. The receiving space is bounded on at least one side by the
centrifugal mass arrangement, and at least one additional component of
the drive unit is installed in the receiving space.