Energy efficient driving strategies for long-haul trains

The energy costs for railways are significant. By driving efficiently, these costs can be significantly reduced. On suburban trains, energy is rnlnirrilsed using a drive-coast-brake strategy that maximise the duration of the coasting phase between each pair of stations, but so that the train arrives at each stop on time. The Metromiser system developed at the University of South Australia helps suburban train drivers save energy by calculating when to switch to coasting, based on the location and speed of the train and the time remaining for the journey section. Tests on many different railways have shown that, using Metromiser, drivers are able to achieve energy savings greater than 15% and significant improvements in timekeeping. The optimal driving strategy for longer journeys is based on speed holding. The basic speed-holding journey is usually disrupted by steep grades and speed limits. An optimal driving strategy can be calculated, however, using standard methods of optimal control. We have demonstrated these calculations for real journeys, and are currently developing improved calculation methods that will enable efficient journeys to be calculated within simulators and on long-haul trains.

Media Info

  • Pagination: 10p. ; PDF
  • Monograph Title: Railway technology for the 21st century: CORE 2000: conference on railway engineering, May 21-23 2000, Glenelg, South Australia

Subject/Index Terms

Filing Info

  • Accession Number: 01532025
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Jul 29 2014 11:51AM