BRAKE SYSTEM FOR A MOTOR VEHICLE AND TRAILER AIR SUPPLY AND CONTROL MODULE

The present invention relates to a trailer air supply and control module (20) for an electronic brake system of a motor vehicle with an interface to connect a trailer brake system and to a brake system of a motor vehicle with an interface to connect a trailer brake system comprising the trailer air supply and control module (20). The trailer air supply and control module (20) according to the invention comprises at least two electrical terminals (201a, 201b), configured to receive two independent but redundant electrical control input signals, which comprise the signal for a preset brake control outlet pressure, at least one valve (21a, 21b, 21c, 21d), configured to adjust a constant air pressure from an air pressure source to the preset break outlet pressure, one brake supply pressure terminal (C), which is a pneumatic outlet and configured to provide the preset brake supply outlet pressure to the pneumatic brake system of the trailer, one brake control pressure terminal (D), which is a second pneumatic outlet and configured to provide the preset brake control outlet pressure to the pneumatic brake system of the trailer, wherein said air pressure source (60) is arranged within the trailer air supply and control module (20).