To eliminate a brake off feeling when a transfer is made from a regenerating brake to a plugging brake or power running control.

This device, comprising a DC motor 7 for running a vehicle, forward/reverse contactors 8, 9 switching a direction of the field current of the DC motor 7 to a forward or reverse direction, chopper element 11 chopper controlling the current of a field coil 7b and an armature 7a of the DC motor 7, and a regenerating contactor contact 5 connected between a DC power source and the armature 7a, is constituted to perform a regenerating brake or a plugging brake. Here, a control part 3, turning on the regenerating contactor contact 5 in a condition chopper operating or turning on the chopper element 11 in a transfer from the regenerating brake to the plugging brake or power running control to perform the plugging brake or the power running control by chopper control of the chopper element 11 after turning of the regenerating contactor contact 5, is provided.