Patent ID: 7034673

Claim:
Method for monitoring an electrohydraulic braking system for vehicles in view of the contamination of brake fluid with air, with the braking system including a pressure accumulator with brake fluid and at least one hydraulic wheel brake having a clearance of a variable quantity, wherein the wheel brake is connected to the pressure accumulator, with the result that a braking pressure is produced therein, comprising the steps of: (1) determining a pressure in at least one wheel brake, (2) determining the volume uptake of the at least one wheel brake, (3) initially estimating the size of the current clearance which lies within or outside a normal range marked by a top and a bottom limit, (4) estimating a top evaluation threshold where the clearance is taken into consideration at the top limit of the normal range, and a bottom evaluation threshold lying thereunder, (5) triggering an alarm if the current clearance is within in the normal range and if the volume uptake lies above the top evaluation threshold, and (6) triggering an alarm if the current clearance is at or under the bottom limit, and if the volume uptake lies generally about the bottom evaluation thresholds and a similar situation has occurred at least once directly beforehand.