Braking system for vehicles comprising - a manual actuator device, operable by means of a lever and/or pedal, operatively connected to at least a first braking device acting on a brake disc or drum, so as to exercise a braking action, - an automatic actuator device, operatively connected to said manual actuator device and/or to said first braking device, - at least one command panel which supervises the functioning of the braking system, said command panel being operatively connected to the automatic actuator device and being programmed so that when the manual actuator device is operated, the command panel commands the operation of the automatic actuator device so as to be able to: - generate a braking action or increase the overall braking action of the braking system, operating and/or increasing the operation of the first braking device or further braking devices (32,34) provided in said system and acting on further brake discs or drums, - control the braking action of the braking system so as not to further operate the first braking device or further braking devices (32, 34) of the system, characterised in that the command panel further commands the operation of the automatic actuator device so as to be able to: - reduce the overall braking action imposed by means of the manual actuator device, directly countering the thrust action exercised on the lever and/or pedal. - a manual actuator device, operable by means of a lever and/or pedal, operatively connected to at least a first braking device acting on a brake disc or drum, so as to exercise a braking action, - an automatic actuator device, operatively connected to said manual actuator device and/or to said first braking device, - at least one command panel which supervises the functioning of the braking system, said command panel being operatively connected to the automatic actuator device and being programmed so that when the manual actuator device is operated, the command panel commands the operation of the automatic actuator device so as to be able to: - generate a braking action or increase the overall braking action of the braking system, operating and/or increasing the operation of the first braking device or further braking devices (32,34) provided in said system and acting on further brake discs or drums, - control the braking action of the braking system so as not to further operate the first braking device or further braking devices (32, 34) of the system, characterised in that the command panel further commands the operation of the automatic actuator device so as to be able to: - reduce the overall braking action imposed by means of the manual actuator device, directly countering the thrust action exercised on the lever and/or pedal. - generate a braking action or increase the overall braking action of the braking system, operating and/or increasing the operation of the first braking device or further braking devices (32,34) provided in said system and acting on further brake discs or drums, - control the braking action of the braking system so as not to further operate the first braking device or further braking devices (32, 34) of the system, characterised in that the command panel further commands the operation of the automatic actuator device so as to be able to: - reduce the overall braking action imposed by means of the manual actuator device, directly countering the thrust action exercised on the lever and/or pedal. - reduce the overall braking action imposed by means of the manual actuator device, directly countering the thrust action exercised on the lever and/or pedal.