Brake system including a master cylinder with an elastic pedal feel element

A brake system, comprising

• a reservoir for storing a brake fluid;
• a brake pedal;
• a master cylinder including a first master chamber, a second master chamber, a first master piston, and a second master piston the first master piston being directly displaceable by operating the brake pedal and the second master piston being a floating piston and separating the first master chamber, which is between the first master piston and the second master piston, from the second master chamber;
• a first hydraulic circuit including at least one first hydraulic wheel brake;
• a second hydraulic circuit including at least one second hydraulic wheel brake;
• and
• a hydraulic pressure supplier including an actuator for pressurizing the first hydraulic circuit and the second hydraulic circuit depending on an operation of the brake pedal in a normal operating mode of the brake system,
• wherein the first master chamber is hydraulically connected to the first hydraulic circuit for pressurizing the first hydraulic circuit in an emergency mode of the brake system and the second master chamber is hydraulically connected to the second hydraulic circuit for pressurizing the second hydraulic circuit in the emergency mode,
• wherein the master cylinder further comprises a locking chamber between the second master piston and an inner wall of the master cylinder, wherein the locking chamber is hydraulically connected to the first master chamber via a first cut-off valve so that the second master piston can be locked in a locking position by closing the first cut-off valve in the normal operating mode, and
• wherein an elastic pedal feel element is arranged in the first master chamber to be in contact with the first master piston and the second master piston for generating a pedal force when the brake pedal is operated while the second master piston is locked in the normal operating mode.