Drive system for a vehicle

A drive system for a vehicle, comprising:

• an internal combustion engine (5);
• and
• a torsional vibration damping arrangement (10),
• wherein the internal combustion engine (5) is switchable between operating modes of different performance capability, and
• wherein the torsional vibration damping arrangement comprises:
• a flywheel mass arrangement (16);
• and
• at least one deflection mass pendulum unit (56;
• 56a;
• 62) with a deflection mass carrier (32;
• 32a;
• 66) and a deflection mass arrangement (44;
• 44a;
• 65) supported at the deflection mass carrier such that the deflection mass arrangement can deflect out of a basic relative position with respect to the deflection mass carrier by a deflection mass coupling arrangement (50;
• 54a);
• wherein the at least one deflection mass pendulum unit (56) is formed as a centrifugal mass pendulum unit, wherein a radial distance of the deflection mass arrangement (44) relative to an axis of rotation changes when the deflection mass arrangement (44) is deflected from the basic relative position with respect to the deflection mass carrier (32)
• at least one deflection mass pendulum unit (56a) comprises:
• the deflection mass carrier (32a) rotatable around the axis of rotation (A);
• a deflection mass (42a) which can be deflected in circumferential direction around the axis of rotation (A) with respect to the deflection mass carrier (32a);
• a deformable restoring element (54a) which is or can be supported in a carrier support region with respect to the deflection mass carrier (32a) and in a deflection mass support region with respect to the deflection mass (42a), wherein a deflection of the deflection mass out of the basic relative position with respect to the deflection mass carrier (32a) in at least one direction causes a deformation of the deformable restoring element (54a);
• and
• a supporting element (48a) radially movably supported at the deflection mass carrier (32a) and which provides the carrier support region, wherein a distance between the carrier support region and the deflection mass support region can be changed by movement of the supporting element (48a) at the deflection mass carrier (32a), and the supporting element is pre-loaded in direction of a radially inner basic position and, starting from the radially inner basic position, is displaceable radially outward in opposition to the pre-loading and to an action of centrifugal force when the deflection mass carrier (32a) rotates around the axis of rotation (A).