METHOD FOR CONTROLLING AN ELECTROHYDRAULIC BRAKING SYSTEM AND ELECTROHYDRAULIC BRAKING SYSTEM

摘要

The invention relates to a method for controlling an electrohydraulic braking system for motor vehicles having an antilock braking control function and an electrically controllable pressure generating device (30) comprising a cylinder-piston arrangement having at least one hydraulic pressure chamber (5, 6), the piston (3, 4) of which is displaceable by an electromechanical actuator (1, 2) so that a predetermined pressure (Ppre_pressure) can be set in the hydraulic pressure chamber (5, 6), and having a number (n) of hydraulically actuatable wheel brakes (11, 12, 13, 14), which each are or can be connected to the hydraulic pressure chamber (5, 6) by means of an electrically actuatable inlet valve (15, 17, 19, 21) and to a pressure medium reservoir (24) by means of an electrically actuatable outlet valve (16, 18, 20, 22). The cylinder-piston arrangement is actuated in case of antilock controlling at all wheel brakes for setting an individual wheel target pressure (PRequest_i) at each wheel brake (11, 12, 13, 14), such that the pressure (Ppre_pressure) in the hydraulic pressure chamber (5, 6) is set to the greatest wheel target pressure (PRequest_i). The invention further relates to an electrohydraulic braking system having an open- and closed-loop control unit in which the method is carried out.