Transit vehicle door control apparatus

Details Transit vehicle door control apparatus Transit vehicle door control apparatus

1986-02-21

1987-07-14

Reese, Randolph A.

Railway rolling stock

Special car bodies

Passenger

49 31, 180281, 246187R, B60N 500

Patent

active

046795081

ABSTRACT:
A transit vehicle having a door includes a zero speed condition detection apparatus provided to logically supply a zero condition output signal for each of a plurality of axles when both of the tachometers for each of those axles are under a predetermined zero speed condition. When two or more zero condition output signals are so supplied, a failsafe driver is energized to operate a control relay for determining the operation of the door.

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patent: 4327415 (1982-04-01), Rush et al.
patent: 4413568 (1983-11-01), Huon De Kermadec

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