Westinghouse Electric Corporation

Michael P McDonald

Larry W Anderson

Donald L Rush

There is disclosed a passenger vehicle operation control apparatus and method including program microprocessor control apparatus for providing a dynamic output signal when the microprocessor completes a predetermined main computer control program subroutine and this dynamic output signal operates with a hardware logic circuit apparatus including a timing circuit such that a repetition rate in excess of that required to keep the timing circuit reset is required, otherwise the computer control program is reinitialized.

Train vehicle control microprocessor power reset

A speed decoding and error determining control apparatus and method are disclosed, including two independently programmed microprocessors responsive to a desired speed command from the wayside for determining respective speed errors for a coupled passenger vehicle, which speed errors must compare within a predetermined tolerance before the speed command is permitted to control the actual speed of the passenger vehicle.

Speed decoding and speed error determining control apparatus and method

A train vehicle zero speed sensing apparatus is provided for operation with a pair of tachometers coupled to the drive mechanism of a train vehicle, such that zero speed or an equivalent zero speed of the vehicle is sensed, and any single failure is detectable and will not yield a false zero speed indication.

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Pittsburgh, PA, United States of America

Michael P McDonald