TECHNIQUES TO ANALYZE VEHICLE COASTDOWN DATA. REVISION 1

A method is presented in this report which uses least squares parameter estimation techniques to estimate the aerodynamic drag and rolling resistance coefficients from velocity versus time data taken during the coastdown. Central to any parameter estimation problem is a model of the process that contains the parameters of interest. A model is developed to describe the coastdown process, and an example problem is presented to show the computational methods developed for the data reduction process. (ERA citation 10:031426)

• Corporate Authors:

  EG and G Idaho, Incorporated

  P.O. Box 1625
  Idaho Falls, ID  United States  83401
• Authors:
  • Venhuizen, J R
• Publication Date: 1985-4

Media Info

• Pagination: 42 p.

Subject/Index Terms

• TRT Terms: Aerodynamics; Analysis; Coefficients; Data analysis; Deceleration; Drag; Least squares method; Mathematical analysis; Rolling resistance; Time; Velocity
• Old TRIS Terms: Analytical method
• Subject Areas: Highways; Operations and Traffic Management; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 00453079
• Record Type: Publication
• Report/Paper Numbers: EGG-ED-6725-Rev.1
• Files: TRIS
• Created Date: Mar 31 1986 12:00AM