Development of a New Seating Accommodation Model

Paper #:
  • 960479

Published:
  • 1996-02-01
Citation:
Flannagan, C., Schneider, L., and Manary, M., "Development of a New Seating Accommodation Model," SAE Technical Paper 960479, 1996, https://doi.org/10.4271/960479.
Pages:
10
Abstract:
Dynamic seat-position testing conducted recently at UMTRI on several different vehicles indicates that, in many cases, the current seating accommodation model represented in SAE J1517 does not accurately predict the distribution of driver seat positions. In general, J1517 tends to predict population percentile seat positions that are forward of observed percentile seat positions, and differences can be as much as 60 mm. It was hypothesized that vehicle factors other than seat height can have substantial and independent effects on driver seat position. The effects of steering-wheel position, seat height, seat-cushion angle, and transmission type on driver fore/aft seat position are being investigated, and results are being used to develop a new driver seating accommodation model called SAM. Unlike J1517, the new model is parametric in that it represents driver-population seat positions using a normal distribution for which the mean and standard deviation are functions of the identified vehicle and seat factors as well as the target-population mean stature and gender mix.
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