METHOD OF CONTROLLING AN ELECTROMECHANICAL WHEEL BRAKE ACTUATOR IN A MOTOR VEHICLE

摘要

The wheel brake actuator (4) comprises a brake piston (20) which is driven in the direction of a brake disk. Said brake piston engages two brake linings (23, 24) with a brake disk (3)or disengages them from said brake disk. The brake piston (20) is moved by an electric motor (40) with a brake application force that is lower than a predetermined value (F1). Once the predetermined value (F1) of the brake application force is reached a piezoelectric element (26) forces the brake piston against the brake linings (23, 24) with a brake application force that is higher than the predetermined value.