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An Eyellipse for Rear Seats with Fixed Seat Back Angles
ISSN: 1946-3995, e-ISSN: 1946-4002
Published April 12, 2011 by SAE International in United States
Citation: Reed, M., "An Eyellipse for Rear Seats with Fixed Seat Back Angles," SAE Int. J. Passeng. Cars – Mech. Syst. 4(1):586-590, 2011, https://doi.org/10.4271/2011-01-0596.
This paper describes the development of the fixed seat eyellipse in the October 2008 revision of SAE Recommended Practice J941. The eye locations of 23 men and women with a wide range of stature were recorded as they sat in each of three second-row bench seats in a laboratory mockup. Testing was conducted at 19-, 23-, and 27-degree seat back angles. Regression analysis demonstrated that passenger eye location was significantly affected by stature and by seat back angle. The regression results were used to develop an elliptical approximation of the distribution of adult passenger eye locations, applying a methodology previously used to develop the driver eyellipse in SAE J941-2002.