Microprocessor based electro-pneumatic locomotive brake control

Details Microprocessor based electro-pneumatic locomotive brake control Microprocessor based electro-pneumatic locomotive brake control

1991-09-16

1993-06-29

Graham, Matthew C.

Fluid-pressure and analogous brake systems

Multiple control

Fluid and electric

303 20, B60T 1514

Patent

active

052227880

ABSTRACT:
A microprocessor based, electro-pneumatic brake control system for a locomotive including electro-pneumatic valves operated by a microprocessor for controlling the locomotive brake pressure in parallel with a pneumatic back-up control valve that includes a quick release valve to bail off the locomotive brake. A brake assurance circuit is provided to apply the locomotive brakes through the electro-pneumatic valves in bypass of the microprocessor when a loss of electrical power at the microprocessor occurs.

REFERENCES:
patent: 3583771 (1971-06-01), Dressler, Jr.
patent: 3799623 (1974-03-01), Wickham et al.
patent: 3901558 (1975-08-01), Burkett
patent: 5090780 (1992-02-01), Powell

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