A road simulator system has been developed for heavy duty vehicles. The system utilizes vertical inputs to the tires and corrects for heavy duty vehicle simulation problems such as solid axle cross-coupling, different tire contact patches for front and rear tires, tire nonlinearity, and variation in vehicle speed. The system operates in two modes which allow reproduction of response measured on a particular road, or simulation of vehicle response to a class of roads described by a PSD Matrix. The road profile generation techniques for each mode of operation are described. These techniques determine effective road inputs from measured vehicle response through a multiple input-multiple output systems analysis of the vehicle. Laboratory test results for both modes of simulator operation are presented.

  • Supplemental Notes:
    • Proceedings of the Automotive Engineering Congress and Exposition, 23-27 Feb. 1976, Detroit, Michigan.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Cryer, B W
    • Nawrocki, P E
    • Lund, R A
  • Publication Date: 1976-2

Media Info

  • Features: Figures; Photos;
  • Pagination: 13 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00134716
  • Record Type: Publication
  • Source Agency: Highway Safety Research Institute
  • Report/Paper Numbers: SAE #760361
  • Files: TRIS
  • Created Date: Jul 22 1976 12:00AM