SAE J4003 PDF

H-Point Machine (HPM-II) – Procedure for H-Point Determination – Benchmarking Vehicle Seats
standard by SAE International, 04/25/2019

SAE J4003 – H-Point Machine (HPM-II) – Procedure for H-Point Determination – Benchmarking Vehicle Seats

Benchmarking is used to discover the design intent measurements for seating compartments in vehicles when these measurements are either unknown or are specified using differing measurement procedures.

This document provides the specifications and procedures to establish consistent measurements for benchmarking vehicle seating positions using the H-Point Machine (HPM-II1) described in SAE J4002 and the H-Point Design tool (HPD) described in SAE J4004. The HPM-II is a physical tool used to establish key reference points and measurements in a vehicle (Figure 1). The HPD is a CAD tool that aids in the benchmarking process (see Appendix A and SAE J4004).