MXPA99006025A - 26-type electronic controlled pneumatics. - Google Patents

Abstract

A system and method for electronically controlling the pneumatics of an air braking system for a train comprising a locomotive brake control valve disposed on a locomotive for controlling an application and release of brakes, a tramline communication system for receiving at least this brake application or brake release signal from the locomotive brake control valve and for sending this signal to an electronic controlled pneumatic car control unit placed on the cars within the train, an electronic controlled pneumatic car control unit for receiving this signal and for sending a brake application or brake release command to a pneumatic unit, and a pneumatic unit in the cars for reacting to the command by delivering an input pressure to car brake cylinders. Junction boxes may be located at both ends of the cars within the train for receiving the tramline communication signals and for converting these signals to an acceptable input level prior to feeding the signals to the electronic cont rolled pneumatic car control unit. Such electronic control provides the advantages of shorter stopping distances, a replenishable air supply source, enhanced trainline communication features, and an unlimited number of units which may be placed within the train consist.