METHOD FOR OPERATING AN ACTUATING UNIT FOR MOTOR VEHICLE BRAKES

摘要

The invention relates to a method for operating an actuating unit for motor vehicle brakes. According to the invention, an electromagnet that actuates the sealing seat of its control valve is controlled by a minimum current during a pressure-maintaining phase which is carried out independently of the will of the driver, in order to avoid damaging the coil of the electromagnet. To this end, a current controlling the electromagnets is slowly reduced until a pre-determined pressure drop compared to the original value is reached. A pre-determined value is added to this current value and the electromagnet is controlled by a current value corresponding to the result of the addition.