Experimental Validation and Parameter Study of a 2D Geometry-Based, Flexible Designed Thermal Motor Model for Different Cooled Traction Motor Drives

For identifying new improvement potentials for electric traction motors, accurate models are needed. In this paper, a geometry-based 2D lumped parameter thermal network model different motor and cooling concepts is studied validated. the second section, design functionality of explained. third best fit literature correlations describing heat transfer mechanisms was identified study coefficients carried out discussed. last validated with measurement results from six motors drives units. validation stationary operating points, peak points drive cycles used. Based on results, error less than 10% achieved most components in designs. Inaccuracies deviations discussed suggestions made.