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Standard

Devices for Use in Defining and Measuring Vehicle Seating Accommodation

2021-06-22
CURRENT
J826_202106
The devices of this SAE Standard provide the means by which passenger compartment dimensions can be obtained using a deflected seat rather than a free seat contour as a reference for defining seating space. All definitions and dimensions used in conjunction with this document are described in SAE J1100. These devices are intended only to apply to the driver side or center occupant seating spaces and are not to be construed as instruments which measure or indicate occupant capabilities or comfort. This document covers only one H-point machine installed on a seat during each test. Certified H-point templates and machines can be purchased from: SAE International 400 Commonwealth Drive Warrendale, PA 15096-0001 Specific procedures are included in Appendix A for seat measurements in short- and long-coupled vehicles and in Appendix B for measurement of the driver seat cushion angle. Specifications and a calibration inspection procedure for the H-point machine are given in Appendix C.
Standard

Motor Vehicle Seat Comfort Performance Measures

2020-10-06
WIP
J2896
These test procedures apply to complete seat systems (production seats or prototypes built at the intended manufacturing quality); however, the procedures can be modified for subsystem or component level testing.
Standard

Motor Vehicle Seat Dimensions

2020-07-01
CURRENT
J2732_202007
This document provides dimensional definitions that facilitate geometric quantification and evaluation of seats. Linear, radial, and angular surface dimensions included in this document are intended to approximate shape characteristics based on defined points of interest and not as a method needed to reproduce complex surface contours. In many cases, other points across the seat surface shape may exceed or not reach the boundary defined by these simple geometric definitions. Dimensions described in this document have been designed to be measured in a CAD environment; however, many dimensions require the HPD position and attitude. This can be obtained by physically establishing H-point using benchmark or auditing procedures OR by measuring the HPD within a CAD or modelling system. Refer to the appropriate document for these procedures.
Standard

H-Point Machine (HPM-II) Specifications and Procedure for H-Point Determination - Auditing Vehicle Seats

2020-06-04
WIP
J4002
This Standard provides the specifications and procedures for using the H-point machine (HPM) to audit vehicle seating positions. The HPM is a physical tool used to establish key reference points and measurements in a vehicle. The H-point design tool (HPD) is a simplified CAD version of the HPM, which can be used in conjunction with the HPM to take the optional measurements specified in this document, or used independently during product design. These H-point devices provide a method for reliable layout and measurement of occupant seating compartments and/or seats. This document specifies the procedures for installing the H-point machine (HPM) to using the HPM to audit (verify) key reference points and measurements in a vehicle. The devices are intended for application at designated seating positions. They are not to be construed as tools that measure or indicate occupant capabilities or comfort.
Standard

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

2019-04-25
CURRENT
J4003_201904
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).
Standard

Benchmark H-Point Procedure

2018-07-24
CURRENT
J3103_201807
This procedure provides a method of determining a benchmark SgRP position for adjustable Driver’s seats in Class A vehicles where the design intent information is not available. Class A vehicles include passenger cars, multipurpose passengervehicles, and vans with Seat Heights (H30) greater than 127 mm and less than 405 mm for the purposes of this document. Once the Driver’s Seat Benchmark SgRP is determined other seating positions can be readily benchmarked based on the standard procedures. This document references installation procedures using the SAE J826 H-point Machine. If desired the document can be adapted to use the HPM-II by substituting the appropriate SAE J4002 instatllation procedures. In that case, the use of the HPM-II should be clearly documented. Since the SgRP is the basis for many interior benchmark dimensions this information can be used to assess or compare vehicle interiors in a standard repeatable way based on the packaging limitations of the property.
Standard

Motor Vehicle Driver and Passenger Head Position

2017-10-11
CURRENT
J1052_201710
This SAE Standard describes head position contours and procedures for locating the contours in a vehicle. Head position contours are useful in establishing accommodation requirements for head space and are required for several measures defined in SAE J1100. Separate contours are defined depending on occupant seat location and the desired percentage (95 and 99) of occupant accommodation. This document is primarily focused on application to Class A vehicles (see SAE J1100), which include most personal-use vehicles (passenger cars, sport utility vehicles, pick-up trucks). A procedure for use in Class B vehicles can be found in Appendix B.
Standard

CAD Model for SAE J826® 3-D H-Point Machine

2016-10-25
WIP
J826/1
This document describes the CAD model data available from SAE for the HPM-1 three-dimensional H-point machine. The elements of the CAD model include the outer surfaces of the cushion and back pans, datum points and lines, and calibration references. The intended purpose for this information is to provide a CAD reference for design and benchmarking as well as a calibration reference for the physical HPM-1 audits. The content and format of the data files that are available are also described. The actual CAD model files are included with this product and are provided in the following formats: CATIA v4 (without parametrics), CATIA v5 (without parametrics), IGES, and STEP.
Standard

2-D CAD Template for SAE J826 H-point Machine

2016-10-13
CURRENT
J826/2_201610
This document describes the 2-D computer-aided design (CAD) template for the HPM-1 H-point machine or HPD available from SAE. The elements of the HPD include the curve shapes, datum points and lines, and calibration references. The intended purpose for this information is to provide a master CAD reference for design and benchmarking. The content and format of the data files that are available are also described.
Standard

Driver Hand Control Reach

2016-03-11
CURRENT
J287_201603
This recommended practice describes boundaries of hand control locations that can be reached by a percentage of different US driver populations in passenger cars, multi-purpose passenger vehicles, and light trucks (Class A vehicles). This practice is not applicable to heavy trucks (Class B vehicles).
Standard

Devices for Use in Defining and Measuring Vehicle Seating Accommodation

2015-11-10
HISTORICAL
J826_201511
The devices of this SAE Standard provide the means by which passenger compartment dimensions can be obtained using a deflected seat rather than a free seat contour as a reference for defining seating space. All definitions and dimensions used in conjunction with this document are described in SAE J1100. These devices are intended only to apply to the driver side or center occupant seating spaces and are not to be construed as instruments which measure or indicate occupant capabilities or comfort. This document covers only one H-point machine installed on a seat during each test. Certified H-point templates and machines can be purchased from: SAE International 400 Commonwealth Drive Warrendale, PA 15096-0001 Specific procedures are included in Appendix A for seat measurements in short- and long-coupled vehicles and in Appendix B for measurement of the driver seat cushion angle. Specifications and a calibration inspection procedure for the H-point machine are given in Appendix C.
Standard

J826/3 - 3-D CAD for SAE J826 H-point Machine

2014-10-16
WIP
J826/3
This document describes the CAD model data of legs and back hardware available from SAE for the HPM-1 three-dimensional H-point machine. The elements of the CAD model include the feet, lower and thighs as well as headroom probe and t-bar. Also included are datum points and lines, and calibration references. The intended purpose for this information is to provide a CAD reference for design and benchmarking as well as a calibration reference for the physical HPM-1 audits. The content and format of the data files that are available are also described. The actual CAD model files are included with this product and are provided in the following formats: CATIA v4 (without parametrics), CATIA v5 (without parametrics), IGES, and STEP.
Standard

Positioning the H-Point Design Tool - Seating Reference Point and Seat Track Length

2014-06-30
WIP
J4004
This SAE Recommended Practice describes how to position and posture the H-point design tool (HPD) described in Appendix B, and how to establish the seating reference point (SgRP), design H-point travel path, and other key reference points that are used in the design and specification of both driver and passenger seat positions. This practice also provides a method for determining the length of the seat track for a driver seat that adjusts fore/aft. The seat track length is based on a desired level of driver accommodation, assuming a U.S. population containing an equal number of male and female drivers. The procedure can be used to establish driver seat track accommodation for new vehicle designs or to evaluate accommodation in existing vehicles. A general method for determining driver seat track length for any driver population (male and female stature distribution) at any selected accommodation percentile and gender mix is given in Appendix A.
Standard

Motor Vehicle Dimensions

2013-02-11
WIP
J1100
This SAE Recommended Practice defines a set of measurements and standard procedures for motor vehicle dimensions. The dimensions are primarily intended to measure the design intent of a vehicle within a design environment (i.e., CAD). All dimensions in this practice can be measured this way. In addition, some dimensions can be taken in an actual vehicle. If measurements are taken on physical properties, some differences in values should be expected. Also, care should be taken to not confuse design intent measurements with those taken on a physical property. It is intended that the dimensions and procedures described in this practice be generic in their application to both the HPM, described in SAE J826, and the HPM-II, described in SAE J4002. In some circumstances, the figures may only reflect one or the other.
Standard

Motor Vehicle Measurement Certification Standard

2012-08-15
WIP
J3017
This recommended practice applies to any vehicle manufacturer that chooses to publish vehicle dimensions and specifications that may influence customer purchase decisions. The intent is to define standardized vehicle dimensions that reflect showroom conditions and / or dimensions experienced during purchase conditions and also include published dimensions used in marketing / advertising materials irrespective of communications media that influence purchase decisions This document also provides a method to certify OEM and 3rd party compliance with recommended SAE and ISO measurement practices for vehicle dimensions commonly reported publically for marketing and competitive vehicle analysis
Standard

Motor Vehicle Seat Comfort Performance Measures

2012-01-06
CURRENT
J2896_201201
These test procedures apply to complete seat systems (production seats or prototypes built at the intended manufacturing quality); however, the procedures can be modified for subsystem or component level testing.
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