This Recommended Practice provides procedures for defining the Accelerator Heel Point and the Accommodation Tool Reference Point, a point on the seat H-point travel path which is used for locating various driver workspace accommodation tools in Class B vehicles (heavy trucks and buses). Three accommodation tool reference points are available depending on the percentages of males and females in the expected driver population (50:50, 75:25, and 90:10 to 95:5).
These procedures are applicable to both the SAE J826 HPM and the SAE J4002 HPM-II.
Previously this practice provided procedures for determining accommodation tool reference points and seating reference point for both Class A vehicles (Passenger Cars and Light Trucks) and Class B vehicle (Heavy Trucks and Buses). Procedures for Class A vehicles have been updated, removed from J1516 and J1517 and are now provided in SAE J 4004 Positioning the H-Point Design Tool – Seating Reference Point and Seat Track Length. This practice has been revised to apply only to Class B vehicles.
Revisions made to the Class B vehicle procedures in this edition of J1516 include improved procedures for determining the Accelerator Heel Point (AHP) and shoe plane angle, and utilization of the new definitions and procedures in SAE J1100.