Brake control apparatus

Details Brake control apparatus Brake control apparatus

G - Physics

05

D

342/28

G05D 1/00 (2006.01) B60T 8/17 (2006.01) B60T 8/26 (2006.01) B60T 13/66 (2006.01)

Patent

CA 1056935

Abstract of the Disclosure A brake control valve apparatus is proposed for the respective cars of a train controlled from one end or the other to be braked by an analogue signal of variable mark-to-space form which operates on each car to gate bursts of train-wire carried a.c. supply which after rectification are used to regulate the brake pressure via an E.P. converter. Additionally, in order to enable release of a braked car which fails to release its brake in a tunnel, a train brake release wire is provided which in one example operates in an energised- to-release mode to release a single failed brake or in another example operates in a de-energised-to-release mode to connect local supplies to operate dump valves on all the brake actuators of the train so providing total release in addition to the normal release by the control valve.

220050

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