The handling dynamics of an intercity bus and a thrre-axle straight truck were investigated using analytical and experimental techniques. Nonlinear equations of motion were derived and implemented as digital computer simulations. These provide for coupled large amplitude lateral and longitudinal motions; steering, braking, and throttle inputs; and nonlinear tire properties. A set of commercial vehicle handling test procedures were evolved and used in a series of full scale experiments to measure the handling performance of the example vehicles and verify the computer simulation. Various forms of limit performance were observed and analyzed including rollover, plowout (understeer), and spinout (oversteer). The nominal and limit response properties depended on maneuver severity and test conditions, and the latter included various steer and brake inputs, forward velocities, vehicle loadings, and pavement coefficients (wet and dry).

  • Supplemental Notes:
    • See also PB-233 688.
  • Corporate Authors:

    Systems Technology, Incorporated

    13766 South Hawthorne Boulevard
    Hawthorne, CA  United States  90250
  • Authors:
    • Wier, D H
    • Teper, G L
    • HOH, R H
    • Himes, R W
    • Sihilling, C S
  • Publication Date: 1974-6

Media Info

  • Pagination: 401 p.

Filing Info

  • Accession Number: 00057961
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: STI-TR-1022-1-FR Final Rpt.
  • Contract Numbers: DOT-HS-242-2-421
  • Files: NTIS
  • Created Date: Nov 12 1974 12:00AM