This paper addresses vehicular rolling resistance reduction in conjunction with improvement in ride comfort and road holding ability in a simplified vehicle design optimization problem. The three vehicle performance indices are represented respectively by the values of vehicular rolling resistance force (VRF), root mean square of vehicle body vertical acceleration (RAC), and root mean square of dynamic load between tire and road (RDL). The summation of VRF, RAC, and RDL associated with corresponding weighting coefficients is treated as the objective function to be minimized. A model for determining rolling resistance of a vehicle traversing an uneven road is presented. In this model vehicular rolling resistance force is treated as a function of the power spectral density of road elevation input. The linear vehicle system is represented by vehicle parameter dependent transfer functions.

  • Availability:
  • Supplemental Notes:
    • Passenger Car Meeting Dearborn, Michigan, October 1-4, 1984.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Lu, X P
    • Segel, L
  • Publication Date: 1984

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00395769
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: SAE 841237, HS-038 293
  • Files: HSL, USDOT
  • Created Date: Jun 30 1985 12:00AM