point in time t 1 the clamping process starts by applying an electrical voltage and energizing the brake motor with the circuit closed the starting phase phase i lasts from the point in time t 1 until the point in time t 2 at the point in time t 2 the voltage u and the revolution rate of the motor n have reached the maxima thereof the phase between t 2 and t 3 constitutes the idle phase phase ii in which the current i moves at a minimum level this is followed from the point in time t 3 by the force build up phase phase iii until the point in time t 4 at which the brake lining is in contact with the brake disk and is pressed with increasing clamping force f ki against the brake disk at the point in time t 4 the switch off of the electric brake motor is carried out by opening the electrical circuit so that the revolution rate n of the brake motor decreases to zero in the further profile the brake motor may additionally be braked to a standstill by means of a switched short circuit of the motor cables the force increase point coincides with the phase of the force build up at the point in time t 3 the force build up or the profile of the clamping force f ki can be determined for example using the profile of the current i of the brake motor which basically has the same profile as the electromechanical clamping force starting from the low level during the idle phase between t 2 and t 3 the current profile rises steeply at the start of the point in time t 3 said rise of the current.