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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.

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Optimization of Traction Force Distribution in Railway Vehicles: A Simulation-Based Approach to Energy Efficiency and Component Lifespan

  • 会议论文

  • 发表日期：

    2026年

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  • Falk Pospischil,
  • Yves Burkhardt,
  • Oliver Klar,
  • Johann Lichtblau

摘要

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.