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Method and apparatus for control of central spacing of track-operated vehicles

  • US 4,014,503 A
  • Filed: 03/31/1975
  • Issued: 03/29/1977
  • Est. Priority Date: 05/17/1974
  • Status: Expired due to Term
First Claim
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1. A method for central spacing control of track-operated vehicles, particularly railroad vehicles, along paths which are subdivided into individual track sections for the positioning of the vehicles, which sections are continuously monitored as to occupation, in dependence upon the instantaneous position of the vehicles, preferably utilizing stationary information systems, particularly for railroad systems with a dense train succession and small track section lengths, and without continuous information systems between vehicles and a main office, comprising the steps of continuously monitoring in the main office, for the track sections indicated as being occupied by a vehicle or a series of coupled vehicles, a group of sections behind and a group of sections ahead thereof, defining a predetermined minimum distance between successive vehicles or series of coupled vehicles, to determine whether such groups of sections ahead of and behind the occupied sections are free of vehicles, and actuating a signal for initiating a forced braking of the following vehicle or vehicles when a section, in either of said groups, is indicated as occupied and thus is within the path range defined by such minimum distance.

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