Braking device for a motor vehicle

摘要

A braking device for a motor vehicle having a first brake circuit ( 10 ) with a master cylinder ( 11 ) controlled by a brake pedal ( 12 ), a second brake circuit ( 20 ) with at least one pump ( 27 ) that is controlled by a computer (C), and a pedal travel simulation mechanism ( 40 ). The simulation mechanism ( 40 ) includes a solenoid valve ( 41 ) that is mounted in a pipe ( 42 ) connected to a hydraulic fluid storage chamber ( 43 ) and controlled by the computer (C) so as to allow the brake fluid to flow toward the chamber ( 43 ) when the second brake circuit ( 20 ) is active and when the driver presses on the brake pedal. The pipe ( 42 ) is also connected to another pipe ( 44 ) in which hydraulic fluid is displaced by a first part ( 45 ) of a control rod connected to the brake pedal ( 12 ) and second part ( 46 ) associated with the master cylinder ( 11 ).