Slow speed consist control by independently controlling each...

Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Railway vehicle

Reexamination Certificate

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Details

C701S070000, C303S007000, C303S016000, C303S020000, C340S426110

Reexamination Certificate

active

06937925

ABSTRACT:
A method for controlling locomotive consists at slow speeds by independently controlling each locomotive is provided. The method comprises controlling the throttle settings and main generator excitation of a control locomotive, independently controlling, from the control locomotive, the throttle setting of each of the controlled locomotives, and compensating for a combined consist tractive effort change induced by a change in the throttle setting of each of the controlled locomotives by adjusting the main generator excitation of at least one of the locomotives to maintain a preset consist speed. The method further includes changing the throttle settings concurrently in the control and controlled locomotives, changing the throttle settings of the controlled locomotives only after the control locomotive reaches a maximum generator excitation, and changing the throttle settings according to a rule base. As a result, aspects of the invention enable slow speed control of locomotive consists comprising trail locomotives that may lack main generator excitation remote control, or Slow Speed, capability.

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patent: 6680918 (2004-01-01), Haley

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