On the dynamic stability of off-road vehicles

Moshe P. Mann, Zvi Shiller

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Dynamic stability reflects the vehicle’s ability to traverse uneven terrain at high speeds. It is determined from the set of admissible speeds and tangential accelerations of the center of mass along the path, subject to the ground force constraints and the geometric path constraints. This paper presents an analytical method for computing the stability margins of a planar all-wheel drive vehicle. It consists of mapping the ground force constraints to constraints on the vehicle’s speeds and accelerations along the path. The boundaries of the set of admissible speeds and accelerations determines the static and dynamic stability margins, used to gauge the traversability of the vehicle along the path. The first is the maximum feasible acceleration at zero speed, whereas the second is the maximum feasible speed. Both stability margins are demonstrated for a planar vehicle moving on a sinusoidal path.

Original languageEnglish
Title of host publicationCISM International Centre for Mechanical Sciences, Courses and Lectures
Pages163-170
Number of pages8
DOIs
StatePublished - 2006

Publication series

NameCISM International Centre for Mechanical Sciences, Courses and Lectures
Volume487
ISSN (Print)0254-1971
ISSN (Electronic)2309-3706

Keywords

  • Dynamic Stability
  • Rough Terrain
  • Stability Margin
  • Tangential Acceleration
  • Zero Moment Point

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