MOTOR VEHICLE BRAKING SIGNALLING INSTALLATION

摘要

The invention relates to a motor vehicle braking signalling installation meant to be mounted on cars, both in case of fluid brake and of compressed air brake, applicable to any type of car, irrespective of the fact that the car has shoe or disk brakes. According to the invention, the installation comprises 4 T-pieces (20) mounted on some brake cylinders (3), each of them supplying a manometric probe (6) having an NC contact (2) and an NO contact (2), a central pump (8) on which there is mounted a distributor (9) and 4 electric valves (13), a probe which is supplied with the positive terminal by means of an NC contact (10) of the foot brake in the terminal zero, which is common, when the foot brake is pressed, the probe (6) receives the positive terminal in the terminal zero, and supplying a red LED on board by means of the NC contact (1), said red LED indicating the absence of the pressure in the circuit, then by pressing stronger on the brake pedal, pressure occurs on the circuit, the probe changing the position of contacts supplying the NO contact (2) which supplies the green LEDs indicating the existence of the braking and if the pedal is pressed down and in the brake cylinder (3) the pressure disappears, the probe closes the NC contact (1), supplying the red LED which indicates the faulty wheel, in parallel also supplying the electric valve (13) and breaking the supply of the faulty circuit, without losing brake fluid, the supply being carried out by means of a thyristor (15) which remains open until the damage is repaired, the car being able to run with the brake on 3 wheels, but carefully, for preventing accidents.