Method and apparatus for controlling a pump of an electrohydraulic brake system

A process and device are disclosed for controlling a pump (190, 195) in an electro-hydraulic brake system. The hydraulic fluid is led from an accumulator (185) via valves (161-164) into the wheel brake cylinders (VL, VR, HL, HR), the accumulator (185) being charged with the pump (190, 195). The output of the pump (190, 195) is regulated by variations in the pulse-pause ratio.