IMPROVED A.A.R. COMPLIANT ELECTRONIC BRAKING SYSTEM.

摘要

A system reliably communicates brake commands from a master controller on a lead locomotive to the brake equipment on each rail vehicle of a freight train. The system includes a mechanism for detecting whether the brake commands are being successfully communicated over a communications channel that is normally used to convey such commands from the master controller to the brake equipment on each rail vehicle. The system also includes on each rail vehicle a mechanism for communicating the brake commands that is independent of the communications channel. The mechanism for communicating conveys the brake commands from the lead locomotive to the rail vehicles only when the mechanism for detecting determines that communication over the communications channel has failed. The system further includes on each rail vehicle a mechanism for receiving the brake commands from the lead locomotive via the mechanism for communicating. The system additionally includes on each rail vehicle a mechanism f or acting upon the brake commands received from the mechanism for receiving so that the brake equipment can execute the brake commands as if they were conveyed to the brake equipment over the communications channel.