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Location and Operation of Air Brake Controls in Motor Truck Cabs

Truck and Bus Human Factors Committee
  • Ground Vehicle Standard
  • J680_201508
  • Current
Published 2015-08-11 by SAE International in United States
This recommended practice shall apply to all on-highway trucks and truck-tractors equipped with air brake systems and having a GVW rating of 26 000 lb or more.
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Truck Driver Stomach Position

Truck and Bus Human Factors Committee
  • Ground Vehicle Standard
  • J1522_201412
  • Current
Published 2014-12-03 by SAE International in United States
This SAE Recommended Practice describes two-dimensional 95th percentile truck driver side view, seated stomach contours for horizontally adjustable seats (see Figure 1). There is one contour and three locating lines to accommodate male-to-female ratios of 50:50, 75:25, and 90:10 to 95:5.
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Truck Driver Shin-Knee Position for Clutch and Accelerator

Truck and Bus Human Factors Committee
  • Ground Vehicle Standard
  • J1521_201412
  • Current
Published 2014-12-03 by SAE International in United States
This SAE Recommended Practice describes two-dimensional, 95th percentile truck driver, side view, seated shin-knee contours for both the accelerator operating leg and the clutch operating leg for horizontally adjustable seats (see Figure 1). There is one contour for the clutch shin-knee and one contour for the accelerator shin-knee. There are three locating equations for each curve to accommodate male-to-female ratios of 50:50, 75:25, and 90:10 to 95:5.
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Accommodation Tool Reference Point for Class B Vehicles

Truck and Bus Human Factors Committee
  • Ground Vehicle Standard
  • J1516_201110
  • Current
Published 2011-10-27 by SAE International in United States
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.
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Driver Selected Seat Position for Class B Vehicles - Seat Track Length and SgRP

Truck and Bus Human Factors Committee
  • Ground Vehicle Standard
  • J1517_201110
  • Current
Published 2011-10-27 by SAE International in United States
This Recommended Practice provides a procedure to locate driver seat tracks, establish seat track length, and define the SgRP in Class B vehicles (heavy trucks and buses). Three sets of equations that describe where drivers position horizontally adjustable seats are available for use in Class B vehicles depending on the percentages of males to females in the expected driver population (50:50, 75:25, and 90:10 to 95:5). The equations can also be used as a checking tool to estimate the level of accommodation provided by a given length of horizontally adjustable seat track. These procedures are applicable for both the SAE J826 HPM and the SAE J4002 HPM-II.
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Describing and Evaluating the Truck Driver's Viewing Environment

Truck and Bus Human Factors Committee
  • Ground Vehicle Standard
  • J1750_201010
  • Current
Published 2010-10-22 by SAE International in United States
This SAE Recommended Practice establishes three alternate methods for describing and evaluating the truck driver's viewing environment: the Target Evaluation, the Polar Plot and the Horizontal Planar Projection. The Target Evaluation describes the field of view volume around a vehicle, allowing for ray projections, or other geometrically accurate simulations, that demonstrate areas visible or non-visible to the driver. The Target Evaluation method may also be conducted manually, with appropriate physical layouts, in lieu of CAD methods. The Polar Plot presents the entire available field of view in an angular format, onto which items of interest may be plotted, whereas the Horizontal Planar Projection presents the field of view at a given elevation chosen for evaluation. These methods are based on the Three Dimensional Reference System described in SAE J182a. This document relates to the driver's exterior visibility environment and was developed for the heavy truck industry (Class B vehicles, class 6, 7, 8 vehicles) although the projection principles presented in this document can be applied to any class of motor vehicles. This document is intended…
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Accommodation Tool Reference Point

Truck and Bus Human Factors Committee
  • Ground Vehicle Standard
  • J1516_200902
  • Historical
Published 2009-02-10 by SAE International in United States
Reference lines have been developed to which driver workspace accomodation tools can be located in vehicle space. The lines describe horizontal reference point locations as a function of vehicle H-point height (H30). One reference line has been established for use in vehicles with H-point heights (H30) and steering wheel diameters (W9) less than 405 and 450 mm, respectively. (Class A Vehicles) This point can be used to reference appropriate workspace tools to accommodate a driver population with a male-to-female ratio of one-to-one. Separate reference lines have been established for use in vehicles with H-point heights (H30) between 405 and 530 mm and steering wheel diameters (W9) between 450 and 560 mm with treadle type pedals. (Class B Vehicles) See Figure 1. Three lines are available for use in Class B vehicles depending on the percentages of males and females in the population the designer wishes to accommodate. Separate points can be used to reference appropriate workspace tools to accommodate driver populations with male-to-female ratios of 50:50, 75:25, and 90:10 to 95:5. Different procedures for locating…

Truck Driver Shin-Knee Position for Clutch and Accelerator

Truck and Bus Human Factors Committee
  • Ground Vehicle Standard
  • J1521_200902
  • Historical
Published 2009-02-10 by SAE International in United States
This SAE Recommended Practice describes two-dimensional, 95th percentile truck driver, side view, seated shin-knee contours for both the accelerator operating leg and the clutch operating leg for horizontally adjustable seats (see Figure 1). There is one contour for the clutch shin-knee and one contour for the accelerator shin-knee. There are three locating equations for each curve to accommodate male-to-female ratios of 50:50, 75:25, and 90:10 to 95:5.

Truck Driver Stomach Position

Truck and Bus Human Factors Committee
  • Ground Vehicle Standard
  • J1522_200902
  • Historical
Published 2009-02-10 by SAE International in United States
This SAE Recommended Practice describes two-dimensional 95th percentile truck driver side view, seated stomach contours for horizontally adjustable seats (see Figure 1). There is one contour and three locating lines to accommodate male-to-female ratios of 50:50, 75:25, and 90:10 to 95:5.

Driver Selected Seat Position

Truck and Bus Human Factors Committee
  • Ground Vehicle Standard
  • J1517_200902
  • Historical
Published 2009-02-10 by SAE International in United States
A driver selected seat position tool has been developed to describe where certain percentages of drivers position horizontally adjustable seats in various workspace arrangements. The tool consists of series of equations that describe horizontal H-point locations as a function of vehicle H-point height (H30). One series of equations have been established for use in vehicles with H-point heights (H30) and steering wheel diameters (W9) less than 405 mm and 450 mm, respectively (Class A Vehicles). This class of vehicles includes passenger cars, vans, and light trucks. The lines describe the 2.5th, 5th, 10th, 50th, 90th, 95th, and 97.5th percentile accommodation levels expressed as H-point location for a driver population with a male-to-female ratio of 1:1. Separate driver selected seat position equations have been established for use in vehicles with H-point heights (H30) between 405 and 530 mm and steering wheel diameters (W9) between 450 and 560 mm with treadle type pedals (Class B Vehicles). (See Figure 1.) This class of vehicles includes heavy trucks and some buses and multipurpose passenger vehicles. Three series of equations…