SAE J 4002 : 2010

H-POINT MACHINE (HPM-2) SPECIFICATIONS AND PROCEDURE FOR H-POINT DETERMINATION - AUDITING VEHICLE SEATS

SAE International

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Introduction
1 Scope
  1.2 Rationale
2 Normative References
3 Definitions
  3.1 H-point
  3.2 H-point Travel Path
  3.3 SgRP (Seating Reference Point), R-point, Design
       H-point
  3.4 AHP (Accelerator Heel Point)
  3.5 PRP (Pedal Reference Point)
  3.6 FRP (Floor Reference Point, Rear Passenger)
4 Measurement Procedure for the Three-dimensional H-point
  Machine
  4.1 Summary of Installation Procedure
  4.2 Prepare Vehicle and Seat
  4.3 Determine the H-point Travel Path (optional)
  4.4 Adjust Seat to Design Internet
  4.5 Install HPM Cushion and Back Pan Assembly
  4.6 Load the HPM
  4.7 Soak Time
  4.8 Record Measurements - Digitize HPM Points
5 Optional Measurements for Driver Seat
  5.1 Leg and Shoe Installations
  5.2 Record Measurements
6 Optional Measurements for 2nd or Succeeding Row
  Passenger Seats
  6.1 Leg and Shoe Installation
  6.2 Record Measurements for Rear Passengers
7 Additional Optional Measurements
  7.1 Effective Head Room
8 Remove the HPM
9 Notes
  9.1 Marginal Indicia
Appendix A (Normative) Description of the
                       Three-Dimensional H-Point Machine
                       (HPM)
  A.1 Availability
  A.2 Major Components
  A.3 Reference Points and Angles
Appendix B (Informative) HPM Specification and
                         Tolerances
  B.1 Tolerances
  B.2 Reference Posture for Specifications
  B.3 Shoe Tool Dimensions
  B.4 Lengths
  B.5 Widths
  B.6 Heights
  B.7 Radii
  B.8 Weight, HPM Only
  B.9 Support Points
  B.10 Divot Point Locations
  B.11 Muslin Cloth
  B.12 Check That HPM is Within Tolerance
       Specifications
Appendix C (Informative) HPM Field Checking
                         Procedure
  C.1 Purpose
  C.2 Equipment Required for Checking
  C.3 HPM Measurement Locations
  C.4 Summary of Measurements and Tolerances
  C.5 Checking Procedures
Appendix D (Informative) H-Point Design (HPD) Tool
                         Description
  D.1 H-Point Design tool (HPD)
Bibliography