THE EFFECTS OF THE STEERING WHEEL TO PEDAL RELATIONSHIP ON DRIVER-SELECTED SEAT POSITION

A small car packaging study investigated the effects of the wheel to pedal relationship on driver selected seat position. The horizontal seat positions of sixty subjects stratified by stature and sex to represent the general driving population were recorded in package configurations with three pedal to wheel distances and three pedal-wheel relationships to the interior surface of the vehicle (windshield header, pillar, glass and instrument panel surface). Subjects utilized comparable amounts of seat travel in all configurations. Pedal to wheel distance and pedal-wheel relationship to the interior surface of the vehicle affected seat position independently. When the heel point location was held constant and horizontal wheel location was moved forward in 45mm increments, the seat position distributions shifted forward 5 to 10mm. Likewise, when the heel to wheel relationship was held constant but moved forward in 45mm increments in relation to the interior surface of the vehicle, the seat position distribution shifted forward 13 to 16mm. All distributions reasonably approximated normality. Shifts of such magnitude were found to be statistically different but in reality represented less than one seat detent of travel (22mm in GM vehicles). In addition, it appeared that in packages with tight heel to wheel distance, subjects gave greater priority to comfortable leg rather than arm reach when positioning their seats.

  • Availability:
  • Supplemental Notes:
    • International Congress and Exposition, Detroit, Michigan, February 25-March 1, 1985.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Philippart, N L
    • Kuechenmeister, T J
    • Ferrara, R A
    • Arnold Jr, A J
  • Publication Date: 1985

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00399993
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: SAE 850311, HS-038 870
  • Files: HSL, USDOT
  • Created Date: Nov 30 1985 12:00AM