Brake for a motor vehicle

A method of applying a braking feel simulation system to a hybrid vehicle with electric traction motors and an internal combustion engine, the vehicle having a braking installation comprising a hydraulic braking system (7, 8) operated by the muscle power of the driver, and an auxiliary braking system that is an electrical braking system with recuperation of energy, the braking feel simulation system comprising a first chamber (20) containing a force transmitting fluid (21) and in which there slides a hydraulic piston (22) driven by a manual braking operating member (1) and a piston (23) for operating the hydraulic braking system (7, 8), said first chamber (20) communicating on command with a second, secondary simulation chamber (4) via a simulation valve (3), the degree of opening of which allows a force to be simulated at the brake pedal, and the braking feel simulation system also comprising a blocking valve (80) blocking operation of said muscle-powered hydraulic braking circuit (7, 8), this blocking valve being commanded into a blocking state by the central control unit (5) when the simulation system is actuated, the method comprising fitting the hydraulic braking circuit for each wheel used for braking the vehicle with a blocking valve (80) that blocks said hydraulic circuit.

A hybrid vehicle with electric traction motors and an internal combustion engine, the vehicle having wheels and a braking installation comprising a hydraulic braking system (7, 8) operated by the muscle power of the driver, an auxiliary braking system that is an electrical braking system with recuperation of energy, and a braking feel simulation system comprising a first chamber (20) containing a force transmitting fluid (21) and in which there slides a hydraulic piston (22) driven by a manual braking operating member (1) and a piston (23) for operating the hydraulic braking system (7, 8), said first chamber (20) communicating on command with a second, secondary simulation chamber (4) via a simulation valve (3), the degree of opening of which allows a force to be simulated at the brake pedal, and the braking feel simulation system also comprising a blocking valve (80) blocking operation of said muscle-powered hydraulic braking circuit (7, 8), this blocking valve being commanded into a blocking state by the central control unit (5) when the simulation system is actuated, the hydraulic braking circuit for each wheel used for braking the vehicle including a blocking valve (80) that blocks said hydraulic circuit.