Comparison and analysis of modern combustion powertrain systems of rail vehicles

Abstract

The article presents the currently used technologies and solutions for rail vehicle drive systems that can be used in the future. The most popular systems used in locomotives and multiple units are described. In addition, modern solutions such as bi-mode locomotives and hybrid vehicles are shown. The article also discusses the possibility of using ultracapacitors, batteries or fuel cells in order to increase the efficiency of the powertrain of a rail vehicle. The selection of the appropriate solution depends on the intended use of the vehicle and the assumed traction characteristics and requires a thorough analysis including, among others, modeling of the drive system and its management.

Model of energy consumption by brake discs of rail vehicles

“…The European Commission has adopted a package of legislative proposals to adapt the EU's climate, energy, tax and transport policies to meet the goal of reducing greenhouse gas emissions by at least 55% by 2030. compared to the level in 1990 [15]. The assumptions of the Green Deal also require lower emissions of harmful substances as well as lower energy consumption on means of transport [6]. In terms of emissions of harmful substances, including CO 2 [27], work is being carried out on new hydrogen-powered combustion engines [21], at the TRAKO fair in Gdansk in 2023, among others.…”