Sequential occupancy release control method and apparatus for tr

Details Sequential occupancy release control method and apparatus for tr Sequential occupancy release control method and apparatus for tr

1975-03-03

1976-06-15

Blix, Trygve M.

Railway switches and signals

Block-signal systems

Automatic

246187B, B61L 2106

Patent

active

039632016

ABSTRACT:
An improved train vehicle speed control system is provided for operation in conjunction with train vehicle occupancy control signals and train occupancy indication signals in relation to a train vehicle track system including a plurality of predetermined track circuit signal blocks through which the train vehicles pass. It is desired that control of train vehicle speed be provided in relation to the detected occupancy by the train vehicle in a particular signal block, for maintaining train vehicle occupancy protection requirements and providing protection signals to establish desired sequential occupancy control of the train vehicles through each of selected signal blocks adjacent to that particular signal block. Spurious pseudo vehicle occupancy in any signal block is detected and included in the provided train speed control in relation to that signal block. The provided train vehicle occupancy control signal is determined in relation to the provided occupancy indication signal, predetermined protection signals and the unique features of the signal block in which train vehicle occupancy is detected.

REFERENCES:
patent: 3886515 (1975-05-01), Cottin
patent: 3887152 (1975-06-01), Eblovi
patent: 3891167 (1975-06-01), Perry

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