B - Operations – Transporting – 61 – L
Patent
B - Operations, Transporting
61
L
346/63
B61L 3/08 (2006.01) B61L 3/12 (2006.01)
Patent
CA 1053786
Control System for Vehicles Abstract of the Disclosure A vehicle control system monitors vehicle passage at predetermined locations. Each time a vehicle passes a predetermined location a window is created for passage of that vehicle at the next predetermined location. So long as the vehicle actually passes the next location during the window the vehicle is allowed to continue its travel. As a further check each location ensures that safe separa- tion is maintained between vehicles by allowing continued travel only if a minimum time separation is maintained. The system also responds to coupled vehicles by detecting that the time separation is below a predetermined value indicative of coupled vehicles and thus minimum time sepa- ration need not be enforced. In one embodiment, passage of a vehicle outside of a time window results in immediate protective action such as by de-energizing the power to each of the vehicles in the system to prevent violation of minimum safe separation rules. In another embodiment, how- ever, vehicle detectors are spaced closely enough such that minimum safe headway requirements will not be violated even if vehicle passes outside a window.
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