Device and Method for the Adaptation of an Actuating Threshold of a Braking Element of a Brake-By-Wire Brake of a Motor Vehicle

A method for the adaptation of an actuating threshold of a braking element of a brake-by-wire brake of a motor vehicle determines initiation of a braking torque of the brake-by-wire brake at a predetermined actuating travel of the braking element. A control unit regulates the brake-by-wire brake, wherein the actuating travel of the braking element is sensed continuously by way of a travel sensor when the braking element is manually actuated. A predetermined constant actuating force is set or an actuating force is determined continuously by way of a sensor. Furthermore, a characteristic curve is determined from at least the sensed actuating travel and the actuating force by way of the control unit and a characteristic property, in particular a maximum of a second derivative of the characteristic curve, is determined by way of the control unit.