H-Point Machine (HPM-II)—Procedure for H-Point Determination—Benchmarking Vehicle Seats
- Ground Vehicle Standard
- J4003_200810
- Revised
Scope
Rationale
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Use of the SAE 95th SgRP equation with an 87 degree driver ankle angle is recommended.
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When H30-1 is known, it potentially reduces the number of iterative calculations that may be required to complete the Benchmarking procedure.
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Even though manufacturers are encouraged to report the driver seat height (H30), a procedure for determining H30 is now provided. When applied to seats with vertical adjustment (H21) of 40 mm or greater, H30 (and the SgRP) is established at 20 mm directly above the full down H-point travel path in order to make consistent comparisons of seating packages across vehicles. For vertical adjustment less than 40 mm, the SgRP should be established on the SgRP curve at mid-vertical H-point travel height.
Recommended Content
| Ground Vehicle Standard | H-Point Machine (HPM-II) Specifications and Procedure for H-Point Determination—Auditing Vehicle Seats |
| Ground Vehicle Standard | Benchmark H-Point Procedure |
| Technical Paper | A Methodology for Estimating the Value of Interior Room in Automobiles |
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| TABLE 1 | SEAT ATTITUDE AND LOCATION | |
| TABLE 2 | HPM PEDAL REFERENCE POINTS | |
| TABLE 3 | LOADING THE HPM | |
| TABLE 4 | DRIVER MEASUREMENTS | |
| TABLE 5 | UNLOADING THE HPM | |
| TABLE 6 | REAR PASSENGER MEASUREMENTS | |
| TABLE B1 | SUMMARY OF BENCHMARKING PROCEDURE FOR DRIVER’S SEAT | |
| TABLE B2 | SUMMARY OF BENCHMARKING PROCEDURE FOR REAR PASSENGER SEATS | |
| TABLE C1 | PEDAL AND FLOOR REFERENCE POINTS FOR THE DRIVER | |
| TABLE C2 | MEASUREMENTS FOR BOTH DRIVER AND REAR PASSENGER | |
| TABLE C3 | MEASUREMENTS UNIQUE TO REAR PASSENGERS |
Issuing Committee
Human Accom and Design Devices Stds Comm
The Human Accommodation and Design Devices Standards Committee is responsible for developing and maintaining SAE Standards, Recommended Practices, and Information Reports related to tools, models and procedures to create and improve the occupant package ergonomic layout of the vehicle's interior tools and procedures for consistent measurement of vehicle dimensions and seat dimensions taken during design, benchmarking, and auditing. The committee actively leads and works to have its standards adopted internationally. Participants in the SAE Human Accommodation and Design Devices Standards Committee include OEMs, suppliers, academicians, consulting firms, government, and other interested parties.