DISPOSITIVO PER IL CONTROLLO DELLA FRENATURA DI UN RIMORCHIO

The device (1) for controlling the braking of a trailer, comprises: one control line (2) connectable to a source of an operating fluid at a first pressure; one additional line (3) connectable to a source of an operating fluid at a second pressure; one braking line (4) connectable to the braking system of the trailer; characterized by the fact that it comprises: one accumulator (6) which is connected in a fluid- operated manner to the additional line (3), valve means (7) positioned between the accumulator (6) and the braking line (4) and movable between at least one supply position, wherein the accumulator (6) is placed in communication with the braking line (4), and an isolation position, wherein the accumulator (6) is isolated from the braking line (4); at least first piloting means (11) of the valve means (7) comprising at least a first piloting line (11a) which is connected in a fluid- operated manner to the control line (2) and adapted to push the valve means (7) towards the supply position, and at least second piloting means (12) operating on the valve means (7) opposite the first piloting means (11).