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Experimental Study on Single Wheel Hub Motor Failures and Their Impact on the Driver-Vehicle Behavior

[+] Author Affiliations
Daniel Wanner, Lars Drugge, Annika Stensson Trigell

KTH Royal Institute of Technology, Stockholm, Sweden

Isabel Neumann, Peter Cocron

Technische Universität Chemnitz, Chemnitz, Germany

Maxim Bierbach

Federal Highway Research Institute (BASt), Bergisch Gladbach, Germany

Paper No. DETC2015-46178, pp. V003T01A001; 10 pages
doi:10.1115/DETC2015-46178
From:
  • ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 3: 17th International Conference on Advanced Vehicle Technologies; 12th International Conference on Design Education; 8th Frontiers in Biomedical Devices
  • Boston, Massachusetts, USA, August 2–5, 2015
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5710-6
  • Copyright © 2015 by ASME

abstract

An experimental field study investigating the impact of single wheel hub motor failures on the dynamic behavior of a vehicle and the corresponding driver reaction is presented in this work. The experiment is performed at urban speeds on a closed off test track. The single wheel hub motor failure is emulated with an auxiliary brake system in a modified electric vehicle. Driver reaction times are derived from the measured data and discussed in their experimental context. The failure is rated and evaluated objectively based on the dynamic behavior of the vehicle. Findings indicate that driver reactions are more apparent for the accelerator pedal compared to the steering wheel response. The controllability evaluation of the vehicle behavior shows that no critical traffic situation occurs for the tested failure conditions. However, even small deviations of the vehicle can impair traffic safety, specifically for other traffic participants like bicyclist and pedestrians.

Copyright © 2015 by ASME

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