The invention relates to A device for reversing an articulated vehicle combination (1) comprising at least two vehicle units (2, 3, 4) interconnected via at least one articulated joint (5, 8), comprising - means for recording and storing a plurality of global positions (G1,... GN) of a local position (LP) of the vehicle combination (1), - characterized in that the device comprises - at least one sensor (20), mounted on the vehicle combination (1), for recording data representing a plurality properties of the surroundings, and - a control unit (CU) arranged to determine, based at least partly on a plurality of dimensions (ln, Wn, Leqn, Xnr) of the vehicle combination (1), a set of global positions (G1,... GN) recorded when the vehicle combination (1) is moving forward, and a set of data representing properties of the surroundings recorded during said forward movement, vehicle control input data for control of the vehicle combination (1) during a reverse movement of the vehicle combination (1).