Structural dynamic effects of the freewheel-clutch in e-bike drive units using a hybrid measurement and simulation approach

Kevin Steinbach, Dominik Lechler, Peter Kraemer, Iris Groß, Dirk Reith, Robert Bosch GmbH, eBike Systems - Engineering Platform Drive Unit, University of Siegen, Department of Mechanical Engineering, University of Applied Science Bonn-Rhein-Sieg, Institute for Technology, Resource Efficiency and Energy Efficiency , Sankt Augustin, Fraunhofer Institute for Algorithms and Scientific Computing , Sankt Augustin

Journal of Vibration and Control

Published online on May 27, 2025

Abstract

Journal of Vibration and Control, Ahead of Print.
This study aims to investigate the bearing-free freewheel-clutch and its significant role in structural dynamic effects in e-bike drive units. It hypothesizes that the freewheel's flexibility and a lack of suitable bearings allow rigid body oscillations ...