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ESC Effectiveness During Property Variations on Scaled Vehicles

[+] Author Affiliations
Randy Whitehead, Ben Clark, David M. Bevly

Auburn University

Paper No. IMECE2005-82558, pp. 233-241; 9 pages
doi:10.1115/IMECE2005-82558
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Design Engineering, Parts A and B
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Design Engineering Division
  • ISBN: 0-7918-4215-0 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

Scaled passenger vehicles in conjunction with computer simulation have proven to be a valuable tool in determining rollover propensity. In this study, vehicle properties are varied to see their impact on roll stability and a stability threshold is derived empirically using simulation. The stability threshold is validated by scaled vehicle experiments. This is made possible with the lower cost and increased safety of using a scaled vehicle versus full size passenger vehicles. A simple electronic stability control (ESC) is then developed to keep the scaled vehicle within the stability threshold. The ESC is tested using varying vehicle properties with a constant vehicle model to see how these property changes affect the ESC’s effectiveness to prevent rollover. The ESC is then implemented with an Intelligent Vehicle Model (IVM) which updates the controller’s vehicle model as vehicle properties such as loading conditions change. This study shows that an IVM greatly increases the success of ESC in keeping the vehicle in the stability region.

Copyright © 2005 by ASME
Topics: Vehicles

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