Energy saving in rail transport

Aim of this article is to introduce and present advantages possibilities using simulation tools calculate energy flows tractive vehicle in all phases its ride. The focus on the braking phase, especially recuperation that offers highest saving potential.Energetic was carried out as a part current railway reconstruction study, which good example possible energetic calculation use. Energetic are performed so called "exact method" developed at Faculty Transportation. advantage method it provides high degree accuracy. Due being real-time, user can enter even during simulation. Crucial ofevery quality input data, such characteristic (including working points below envelope line together with efficiency characteristics power train parts (engine, transmission, convertor others)). Also, sufficiently precise (with precision 1 meter) track details (detailed geometrical other information reconstructed or proposal.To savings ride, section Montreál-Sherbrooke chosen. On track, (especially electrification partial superstructure) planned. Reconstruction level will be dependant local economical social conditions. However, most optimistic case, total undertaken, lower when vehicles have very similar characteristics. located between cities Montreál Sherbrooke, 160 km apart. To compare current, future, state, comparison consumption conducted same characteristics.We assume overall intensity ride newly (eg. greater radius arches) than before reconstruction. Current data not available, therefore they were obtained by verified calculations considered accurate.Presumably, parameters required for always delivered sufficient partly missing completely. In these cases substituted various algorithms, machine-processed calculations. One crucial algorithms "moment efficiency". Its machine processingis entirely therefore, without usage. For financial reasons, only theoretical physical method. Based several results, emergent computing tool functional accurate. program supposed experimentally after finishing.The outcomes presented calculated simulated computation confronted real situation any way. relevant processes background already older software versions. Therefore, least accurate provide preliminary study Presented executed author’s software.Part methodology taken from previous, verified, versions