Elektronisch regelbares Bremsbetätigungssystem

摘要

The proposed electronically controllable brake operating system for motor vehicles comprises a main brake cylinder (2) which can be operated by a pedal (1); brake pressure generators (3-6) controlled by an electronic control unit (13), each brake pressure generator having a piston (33-36) which can slide in a cylinder bore from an initial position which facilitates a return stroke, and each piston separating one working chamber (53-56), which is connected (directly) to a vehicle wheel brake (7-10) and (via an electromagnetically actuated first separation valve (14, 16, 17, 19)) to the main cylinder (2), from a second working chamber (63, 64, 65, 66) connected to the main cylinder (2). As a way of improving the feel of the pedal, especially during anti-lock brake operations, while also improving the anti-lock control, it is proposed according to the invention that an electromagnetically actuated second separation valve (15, 18) should be incorporated in the connection (11, 12) between the main cylinder (2) and the second working chamber (63, 64, 65, 66), and that it should be possible to operate the piston (33, 36) of the brake pressure generator to generate or increase brake pressure.