ELECTROHYDRAULIC VEHICLE BRAKE SYSTEM HAVING AN ELECTROMECHANICAL ACTUATOR AND METHOD FOR OPERATING THE BRAKE SYSTEM

摘要

The invention relates to an electrohydraulic vehicle brake system, which comprises an electromechanical actuator for actuating at least one hydraulic piston in order to build up a hydraulic pressure at wheel brakes. A set of electrically controllable valve assemblies is provided, which set comprises a respective first valve assembly between a cylinder that accommodates the at least one hydraulic piston and each of the wheel brakes and at least one second valve assembly between an accommodating device for hydraulic fluid and at least one of the wheel brakes. The at least one second valve assembly is provided in parallel with the first valve assembly associated with the same wheel brake as the at least one second valve assembly. A control device or control device system is also present, which controls the first valve assemblies and the electromechanical actuator in order to build up a hydraulic pressure at at least one of the wheel brakes via the opened first valve assembly associated with said wheel brake and to release a built-up hydraulic pressure via the opened first valve assembly. The control of the first valve assemblies can be performed in time-division multiplexing operation.