SAE J4004-2008 PDF

Scope: This SAE Recommended Practice describes how to position and posture the H-point design tool (HPD) described in Appendix B, and how to establish the seating reference point (SgRP), design H-point travel path, and other key reference points that are used in the design and specification of both driver and passenger seat positions.This practice also provides a method for determining the length of the seat track for a driver seat that adjusts fore/aft. The seat track length is based on a desired level of driver accommodation, assuming a U.S. population containing an equalnumber of male and female drivers. The procedure can be used to establish driver seat track accommodation for new vehicle designs or to evaluate accommodation in existing vehicles.A general method for determining driver seat track length for any driver population (male and female stature distribution) at any selected accommodation percentile and gender mix is given in Appendix A.Application of this document is limited to Class A Vehicles (Passenger Cars, Multipurpose Passenger Vehicles, and Light Trucks) as defined in SAE J1100.

SAE J4004-2008 Referenced Document

SAE J1100 Motor Vehicle Dimensions*， 2009-11-23 Update
SAE J4002 H-Point Machine (HPM-II) Specifications and Procedure for H-Point Determination—Auditing Vehicle Seats*， 2022-01-01 Update

2008 SAE J4004-2008 Positioning the H-Point Design Tool Seating Reference Point and Seat Track Length
2005 SAE J4004-2005 Positioning the H-Point Design Tool Seating Reference Point and Seat Track Length