Patent ID: 8038229

Claim:
A brake system, comprising at least one piston-cylinder unit for producing a pressure in at least one working chamber, the working chamber being connected to at least one wheel brake via at least one hydraulic line, and the brake system comprising at least one drive device and an actuating device, and wherein the drive device during normal operation is configured to act on the at least one first piston of the piston-cylinder unit for building pressure and reducing pressure by way of a first force transmission means, and in the event of failure of the drive device the actuating device is configured to act mechanically on the piston by way of a second force transmission means, wherein adjustment of the second force transmission means disengages a connection between the first force transmission means and the piston by means of the actuating device, the system further comprising a clutch arranged between the piston and the first force transmission means, wherein the second force transmission means is configured to operate the clutch.