Patent ID: 7185745

Claim:
An electrically actuatable vehicle brake, said vehicle brake comprising: a brake piston acting on at least one friction lining, said brake piston displaceable out of an initial position into an actuation position, wherein in said actuation position, said brake piston urges said friction lining against a rotating member of said vehicle brake which can be connected, fixed against relative rotation, to a wheel of a motor vehicle, and wherein said brake piston is actuatable by a transmission unit driven by an electric motor and acting on said brake piston; and an electronic control unit, wherein said electric motor can be triggered by said electronic control unit, said electronic control unit being set up to detect performance parameters of at least one of said vehicle, said electric motor, and said vehicle brake, and further being set up and programmed to trigger said electric motor by means of a control and evaluation program running in said electronic control unit in such a way that to calibrate said brake, said brake piston is displaced in response to the detection of at least one predetermined operating condition in a first direction into said actuation position, and then said brake piston is displaced in a second direction opposite said first direction, into said initial position along a path the length of which corresponds to a predetermined, desired brake release play, and wherein said electronic control unit is set up to trigger said electric motor in such a way that said brake piston is displaced into a predetermined zero position before being displaced into said actuation position, and said electronic control unit is further set up to detect a dimension value which is correlated to the length of a path covered by said brake piston between its zero position and its actuation position and to compare the detected dimension value with a stored reference dimension value, the reference dimension value being correlated to the length of a path covered by said brake piston in a vehicle brake fitted with new friction linings.