Using Simulation to Quantify Sine with Dwell Maneuver Test Metric Variability

Paper #:
  • 2008-01-0590

Published:
  • 2008-04-14
DOI:
  • 10.4271/2008-01-0590
Citation:
Mousseau, R., Song, D., Miller, B., Semrau, G. et al., "Using Simulation to Quantify Sine with Dwell Maneuver Test Metric Variability," SAE Technical Paper 2008-01-0590, 2008, doi:10.4271/2008-01-0590.
Pages:
9
Abstract:
The Sine with Dwell (SWD) maneuver is the basis for the NHTSA FMVSS-126 regulation. When put into effect, all vehicles under 10,000 lbs GVWR will need to pass this test. Understanding the variability in the yaw rate ratio and lateral displacement test metrics is important for vehicle design. Anything that influences vehicle handling can affect test metric variability. Vehicle handling performance depends largely on vertical tire patch loads, tire force and moment behavior, on slip angle, and camber angle. Tire patch loads are influenced, among other things, by weight distribution and (quasi-static and dynamic) roll-couple distribution. Tire force and moment relationships have a distinct shapes, but they all commonly rise to a peak value at a given slip angle value and then fall off with increasing slip angle. Severe handling maneuvers, like the SWD operate at slip angles that are at, or above, the peak lateral force. This paper examines how changes in suspension roll stiffness and damping, weight distribution, and the shape of the lateral force and aligning moment curves, affect the sine with dwell test maneuver variability.
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