CONNECTING SOLUTION FOR DETECTING THE CONDUIT RUPTURE AT ELECTRO-PNEUMATIC VEHICLE BRAKE SYSTEM OPERATING WITH TRAILER BRAKE CONTROLLED BY TRACTIVE VEHICLE

摘要

1. Circuit arrangement for detecting a break in a conduit in an electro-pneumatic vehicle braking system with trailer brakes controlled by the traction vehicle, having a control pressure conduit (1) and a supply pressure conduit (2), wherein an electric control singal is converted into a control pressure in an electro-pneumatic transducer (EP-transducer 12) and the EP-transducer has a pressure/voltage-transducer (16) which produces an electric signal corresponding to the measured pneumatic pressure, and having a back-feed valve (5) interconnected in the supply conduit, characterized in that monitoring electronics (6, 7) is present, to which the output signal of the pressure/voltage-transducer (16) is fed, a break in the control pressure conduit (1) being identified when, for a predetermined duration time function element 30), the output signal of the pressure/voltage-transducer (16) indicates a pressure which is too low for the controlled braking, possibly pressure "nil" and the back-feed valve (5) is simultaneously open for this duration.