Patent ID: 7461906

Claim:
A method for changing the pressure fluid of an electrohydraulic brake system, comprising a pedal-operated master brake cylinder and a brake circuit controlled by the master brake cylinder pressure, including a pump, the intake side of which, by means of an intake conduit, is in communication with a pressure fluid reservoir, and a high-pressure accumulator as well as inlet and outlet valves for the wheel brakes connected to the brake circuit, with an inlet valve controlling the connection of the related wheel brake to the high-pressure accumulator, and an outlet valve controlling the connection of the related wheel brake to the pressure fluid reservoir by means of a non-pressurized return conduit, and with the master brake cylinder being connected to the brake circuit by means of a cut-off valve inserted downstream of the inlet valves, comprising at least the following steps: 1. conventional change of the pressure fluid by repeated manual application of the brake pedal; 2. activating the pump and delivering pressure fluid out of the reservoir; 3. connecting the inlet and outlet valves and the cut-off valve in a first configuration such that pressure fluid is fed from the high-pressure accumulator to wheel bleeder connections and; 4. connecting the inlet and outlet valves and the cut-off valve in a second configuration such that pressure fluid is fed from the high-pressure accumulator into the pressure fluid reservoir.