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Method and apparatus for limiting in-train forces of a railroad train

  • US 9,037,323 B2
  • Filed: 04/30/2007
  • Issued: 05/19/2015
  • Est. Priority Date: 12/01/2006
  • Status: Active Grant
First Claim
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1. An apparatus for controlling a railway system, comprising:

  • a first element configured to determine slack between segments of the railway system as the railway system travels along a track the segments including one or more powered units or non-powered units, the slack determined from a comparison between a maximum natural acceleration and a minimum natural acceleration of one or more of the non-powered units of the railway system and with a common acceleration of the railway system, the common acceleration of the railway system determined from acceleration of a lead powered unit of the one or more powered units in the railway system; and

    a second element configured to control application of one or more of tractive effort or braking effort based on the slack that is determined such that actual coupler forces that actually occur between the segments of the railway system during travel of the railway system along the track are within designated limits.

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