Patent ID: 6050650
Filing Date: 2000-04-18
Classification: B60T

Abstract:
An electronic freight train brake control system on a railcar having separate compartment auxiliary and emergency reservoirs, a brake pipe for charging the reservoirs with pressurized fluid and a fluid pressure activated brake cylinder device, said electronic freight train brake control system comprising:a. an application valve in selective fluid communication with said brake cylinder device and each of said auxiliary and emergency reservoirs for controlling the flow of pressurized fluid from said reservoirs to said brake cylinder device;b. a pair of backflow check valves, respective ones of said pair being interposed between said application valve and each of said auxiliary and emergency reservoirs, respectively to prevent an exchange of pressurized fluid between said reservoirs;c. a release valve in selective fluid communication with said brake cylinder and an exhaust port; andd. an electronic controller operating said application valve and said release valve to control the braking functions of the railcar by supplying pressurized fluid concurrently from each of said auxiliary and emergency reservoirs to said brake cylinder device.