DPMAS UTILIZATION VEHICLE PARAMETER IDENTIFICATION

The Driver Performance Measurement and Analysis System (DPMAS) is a sophisticated instrumented vehicle developed by the National Highway Traffic Safety Administration for use in driver performance research. The project was directed at evaluating the DPMAS by using it to support the development and validation of a simplified model of lateral dynamics of automobiles. A second order model has been developed which is useful providing the transfer function for the vehicle is known. In this study, a method is shown for estimation of the transfer function coefficients for the second order model from data taken from the DPMAS, and the model was shown to agree well with field data. Based on these results, it is concluded that a very simple measure based on the damping ratio of the second order roots of the model, can be used as a measure of relative vehicle stability which is a function of both speed and lateral acceleration.

• Corporate Authors:

  University of Missouri, Rolla

  Department of Civil Engineering, 1870 Miner Circle
  Rolla, MO  United States  65409

  National Highway Traffic Safety Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Kern, F J
  • Dunipace, K R
• Publication Date: 1978-11

Media Info

• Pagination: 87 p.

Subject/Index Terms

• TRT Terms: Automobiles; Behavior; Drivers; Dynamic loads; Dynamics; Mathematical models; Mechanical acceleration; Mechanical stability; Performance; Research; Simulation; Traffic safety; Transfer functions; Vehicle performance
• Uncontrolled Terms: Dynamic response
• Old TRIS Terms: Strategy
• Subject Areas: Highways; Research; Vehicles and Equipment;

Filing Info

• Accession Number: 00198278
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: DOT-HS-804-721 Final Rpt.
• Contract Numbers: DOT-HS-7-01533
• Files: NTIS, TRIS, USDOT
• Created Date: Sep 29 1979 12:00AM