HYDRAULIC BRAKE SYSTEM WITH ANTI- LOCKING FUNCTION

Hydraulic brake system (10) with anti-lock function, comprising a master cylinder (12) that generates hydraulic pressure and is hydraulically communicating connected via a hydraulic line (14) to a wheel brake (16), a controllable isolation valve (18) that hydraulically separates the master cylinder (12) from the wheel brake (16) when the anti-lock function is activated, an accumulator (20) that is opened against a spring force of a spring element and enlarges the volume in the hydraulic line (14) when the anti-lock function is activated, as well as a speed sensor (22) and a control unit (24), wherein the spring element is operatively connected to an electric drive (26) that can be controlled via the control unit (24), which drive causes a resetting of the spring element and thus the opening of the accumulator (20).