Method and device for controlling an electrohydraulic brake system

摘要

A system and device and a method for controlling an electrohydraulic brake system of a motor vehicle especially adapted for brake by wire applications. The embodiments carryout position control of an actuator of an electronically activatable pressure supply unit based on the actuator position actual value and on and actuator position reference value which is determined on the basis of a pressure reference value.

主权项

1. A method for controlling an electrohydraulic brake system for motor vehicles, comprising at least one hydraulically actuatable wheel brake (9) which can be actuated by means of an electronically activatable pressure supply unit (16) which includes a cylinder-piston arrangement having a hydraulic pressure chamber (4), and a piston (3) which is displaceable by an electromechanical actuator (1), so that a predeterminable pressure reference value (PV,Soll) is configured to be set in the hydraulic pressure chamber (4), an actuator position actual value (XAkt) of a position of the pressure supply unit (16) being ascertained, a manipulated variable (ωAkt,Soll, MAkt,Soll) for activating the actuator (1) generated by means of a control device(40), a position control (50) of the actuator (1) being carried out in the control device (40) on the basis of the actuator position actual value (XAkt) and of an actuator position reference value (XMod,Soll) and the actuator position reference value (XMod,Soll) being determined on the basis of the predetermined pressure reference value (PV,Soll).