A railway vehicle comprising: - a power supply system; - a main compressed air line with a main pressure; - a compressed air production unit, suitable for generating compressed air from an electrical supply provided by the power supply system, the production unit being suitable for supplying compressed air to the main pipe; - a general compressed air braking pipe with a general pressure; - a general pressure control system for supplying compressed air to the general pipe from the compressed air in the main pipe; - at least one brake control system for the railway vehicle suitable for automatically triggering braking as a function of brake pipe pressure, the brake control system comprising: * a braking reservoir of compressed air, the braking reservoir being supplied with compressed air by the main pipe, * a pneumatic brake, the pneumatic brake being adapted to be supplied with braking pressure from the brake reservoir, and adapted to exert a braking force on the vehicle as a function of the supplied braking pressure; * a distribution system capable of automatically authorising the supply of pressure to the or each pneumatic brake from the brake reservoir, as a function of the general pressure of the brake pipe; characterised in that the railway vehicle further comprises a pneumatic control system for the main line pressure, the pneumatic control system being capable of automatically comparing the main line pressure with at least the general line pressure, and being capable of automatically evacuating compressed air from the general line out of the general line, when the main line pressure drops below a main emergency pressure threshold. - a power supply system; - a main compressed air line with a main pressure; - a compressed air production unit, suitable for generating compressed air from an electrical supply provided by the power supply system, the production unit being suitable for supplying compressed air to the main pipe; - a general compressed air braking pipe with a general pressure; - a general pressure control system for supplying compressed air to the general pipe from the compressed air in the main pipe; - at least one brake control system for the railway vehicle suitable for automatically triggering braking as a function of brake pipe pressure, the brake control system comprising: * a braking reservoir of compressed air, the braking reservoir being supplied with compressed air by the main pipe, * a pneumatic brake, the pneumatic brake being adapted to be supplied with braking pressure from the brake reservoir, and adapted to exert a braking force on the vehicle as a function of the supplied braking pressure; * a distribution system capable of automatically authorising the supply of pressure to the or each pneumatic brake from the brake reservoir, as a function of the general pressure of the brake pipe; characterised in that the railway vehicle further comprises a pneumatic control system for the main line pressure, the pneumatic control system being capable of automatically comparing the main line pressure with at least the general line pressure, and being capable of automatically evacuating compressed air from the general line out of the general line, when the main line pressure drops below a main emergency pressure threshold. * a braking reservoir of compressed air, the braking reservoir being supplied with compressed air by the main pipe, * a pneumatic brake, the pneumatic brake being adapted to be supplied with braking pressure from the brake reservoir, and adapted to exert a braking force on the vehicle as a function of the supplied braking pressure; * a distribution system capable of automatically authorising the supply of pressure to the or each pneumatic brake from the brake reservoir, as a function of the general pressure of the brake pipe;