BRAKING SYSTEM FOR AT LEAST ONE VEHICLE, SYSTEM AND METHOD FOR CALIBRATING A BRAKING SYSTEM OF AT LEAST ONE VEHICLE, AND VEHICLE

A braking system (200) for at least one vehicle (V), particularly at least one railway vehicle, is described, the braking system comprising control means arranged to:a) determine a real instantaneous deceleration value of the vehicle during the actuation of braking means (202);b) determine a real friction value between braking means and at least one wheel or at least one disc, as a function of at least said real instantaneous deceleration value, a test mass value of the vehicle and a value of an actuation signal;c) replace a predetermined expected friction value stored in the storage means (210, 210') with the determined real friction value.Further described is a system for calibrating a braking system of at least one vehicle, a method for calibrating a braking system of at least one vehicle (V), and vehicles.