Electronic control system of the braking of a railway vehicle , which includes an emergency braking module and a service braking module each including an electronic architecture arranged to generate a braking pressure value, said electronic architectures being independent and segregated from each other; the service braking module being arranged to receive at least a deceleration or service braking request signal and to generate a respective service braking pressure signal ; the emergency braking module being connected to said service braking module through a communication channel for receiving said service braking pressure signal ; the emergency braking module being arranged to receive at least one signal indicative of an emergency braking request and to generate a respective intermediate braking pressure signal indicative of an emergency braking ; characterized by said emergency braking module being arranged to: - generate a braking pressure control signal corresponding to the service braking pressure signal , when the higher among the one or more intermediate braking pressure signals indicative of an emergency braking is lower than a predetermined threshold pressure value ; - generate a braking pressure control signal corresponding to the higher among the one or more intermediate braking pressure signals indicative of an emergency braking , when the higher among the one or more intermediate signals braking pressure indicative of emergency braking is equal or higher than the predetermined threshold pressure value ; and - convert said braking pressure control signal in a braking pressure by controlling an electropneumatic actuator . the service braking module being arranged to receive at least a deceleration or service braking request signal and to generate a respective service braking pressure signal ; the emergency braking module being connected to said service braking module through a communication channel for receiving said service braking pressure signal ; the emergency braking module being arranged to receive at least one signal indicative of an emergency braking request and to generate a respective intermediate braking pressure signal indicative of an emergency braking ; characterized by said emergency braking module being arranged to: - generate a braking pressure control signal corresponding to the service braking pressure signal , when the higher among the one or more intermediate braking pressure signals indicative of an emergency braking is lower than a predetermined threshold pressure value ; - generate a braking pressure control signal corresponding to the higher among the one or more intermediate braking pressure signals indicative of an emergency braking , when the higher among the one or more intermediate signals braking pressure indicative of emergency braking is equal or higher than the predetermined threshold pressure value ; and - convert said braking pressure control signal in a braking pressure by controlling an electropneumatic actuator . - generate a braking pressure control signal corresponding to the service braking pressure signal , when the higher among the one or more intermediate braking pressure signals indicative of an emergency braking is lower than a predetermined threshold pressure value ; - generate a braking pressure control signal corresponding to the higher among the one or more intermediate braking pressure signals indicative of an emergency braking , when the higher among the one or more intermediate signals braking pressure indicative of emergency braking is equal or higher than the predetermined threshold pressure value ; and - convert said braking pressure control signal in a braking pressure by controlling an electropneumatic actuator . <EOS>