SAE J941_201003

1 Scope
2 References
3 Definitions
4 Adjustable Seat 95 and 99 Percent Tangent Cutoff Eyellipses for
  The United States User Population at a 50/50 Gender Mix
  4.1 Axis Lengths
  4.2 Axis Angles
  4.3 Centroid Locations
5 Eyellipse Locating Procedure, Class A Vehicles
6 Neck Pivot (P) and Eye (E) Points: Locating Procedure, Class A
  Vehicles
7 Notes
  7.1 Marginal Indicia
Appendix A Adjustable Seat Tangent Cutoff Eyellipses for Any User
           Population Stature Distribution and Gender Mix
    A.1 Axis Angles
    A.2 Reference Centroid Location
    A.3 Axis Lengths
    A.4 Final Centroid Location
    A.5 Eyellipses For Selected World Populations
Appendix B Fixed Seat 95 and 99 Percent Tangent Cutoff Eyellipses
           for The United States Adult Population at a 50/50
           Gender Mix
    B.1 Background
    B.2 Axis Angles
    8.3 Axis Lengths
    B.4 Centroid Location
Appendix C Fixed Seat Tangent Cutoff Eyellipses for Any User
           Population Stature Distribution and Gender Mix
    C.1 Axis Angles
    C.2 Axis Lengths
    C.3 Centroid Location
Appendix D Tangent Cutoff Eyellipses and Inclusive Eyellipses
Appendix E Eyellipses for Class B Vehicles
Appendix F Background for this Revision of SAE J941

Establishes the location of drivers eyes inside a vehicle.

This SAE Recommended Practice establishes the location of drivers’ eyes inside a vehicle. Elliptical (eyellipse) models in three dimensions are used to represent tangent cutoff percentiles of driver eye locations.Procedures are provided to construct 95th and 99th percentile tangent cutoff eyellipses for a 50/50 gender mix, adult user population.Neck pivot (P) points are defined in Section 6 to establish specific left and right eye points for direct and indirect viewing tasks described in SAE J1050. These P points are defined only for the adjustable seat eyellipses defined in Section 4.This document applies to Class A Vehicles (Passenger Cars, Multipurpose Passenger Vehicles, and Light Trucks) as defined in SAE J1100. It also applies to Class B vehicles (Heavy Trucks), although these eyellipses have not been updated from previous versions of SAE J941.The appendices are provided for information only and are not a requirement of this document.