ELECTRO-PNEUMATIC BRAKE SYSTEM FOR A VEHICLE WITH A PARK BRAKE SYSTEM USED AS A BACKUP DECELERATION SYSTEM

An electro-pneumatic brake system for an automotive vehicle comprising brake actuators each with a service brake chamber (C2) and a park brake chamber (C1), a service brake system forming a pneumatic main deceleration system and comprising service brake lines (LFW-L, LFW-R, LRW-L, LRW-R) configured to supply air pressure to the service brake chamber of the brake actuators, a park brake system forming a pneumatic immobilization system and a backup pneumatic deceleration system, and comprising park brake lines (PBR1, PBR2) configured to supply air pressure to the park brake chamber of the brake actuators, wherein the park brake system comprises a pressure controller device configured to perform a wheel anti-locking function under a condition of the park brake system being used as a backup deceleration system, the pressure controller device being configured to control the air pressure supply in the park brake lines.