Patent ID: 8882633

Claim:
An arrangement, comprising: a combustion engine having a crankshaft; an electric machine having a rotor; a planetary gear coupling the combustion engine and the electric machine; a clutch for adjusting a predetermined gear ratio between the rotor and the crankshaft; and a control device for adjusting in an open position of the clutch at least one of a rotation speed of the rotor and a rotation speed of the crankshaft so as to synchronize the at least one rotation speed of the rotor and the crankshaft to the predetermined gear ratio before the control device causes the clutch to close, wherein the planetary gear train comprises a planet carrier coupled with the combustion engine, a sun gear coupled with the electric machine and a ring gear, wherein the clutch is implemented as a positive-locking clutch constructed to establish a positive-locking connection between the ring gear and a component that is fixed in relation to the combustion engine.