Authors - Falk Pospischil, Yves Burkhardt, Oliver Klar, Johann Lichtblau Abstract - This paper presents the optimization problem of distributing traction forces among parallel group drives in railway vehicles to reduce energy consumption while considering constraints. The model requirements, including temperature-dependent losses, are deduced to precisely determine energy losses. The approach for online implementation of optimal traction force distribution using a Look-Up Table (LUT) is analyzed through simulation on a realistic drive cycle, resulting in an overall energy demand reduction of approximately 0.5 %. The effects of alternating driving strategies on wheel life and lifespan consumption of switching power electronics are examined, revealing that lifespans can be negatively affected by energy-efficient traction force distribution.
