Patent ID: 7942482

Claim:
A brake system for a mobile machine, comprising first and second hydraulic circuits to each of which at least one wheel brake cylinder is associated that is adapted to be controlled through an intermediary of a brake valve arrangement which may be actuated through an intermediary of mechanical operating means and/or a hydraulic pilot control, wherein the brake valve arrangement includes first and second brake valves that are each associated with one of the first and second circuits for supplying a pressure medium having a braking pressure to the associated at least one wheel brake cylinder, with a braking pressure of the first brake valve being conducted via a control passage into a control chamber of the second brake valve as a control pressure for actuating the second brake valve controlling a supply of a pressure medium having a braking pressure to the at least one wheel brake cylinder associated with the second hydraulic circuit, and wherein in the control passage, a directional control valve is provided, whereby the connection between the control passage and the control chamber of the second brake valve may be blocked in accordance with operation of the operating means.