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Commercial Vehicle Aerodynamics Standard Human Factors and Ergonomics Casting Suppliers Cleaning

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Standard

Guidelines for Aerodynamic Assessment of Mass-Produced Cars and Light-Duty Trucks Using Computational Fluid Dynamics
2019-07-01
WIP
J3191
This document outlines general requirements for the use of Computational Fluid Dynamics (CFD) methods for aerodynamic simulation of mass-produced cars and light-duty trucks. The document provides guidance for aerodynamic simulation with CFD methods to support current vehicle characterization, vehicle development, vehicle concept development and vehicle component development. The guidelines presented in the document include Navier-Stokes and Lattice-Boltzmann based solvers.
Standard

Constant Speed Aerodynamic Procedure for Heavy Vehicles
2017-09-25
WIP
J3156
Develop and document an aerodynamic constant speed procedure for heavy vehicles that can accurately calculate the aerodynamic performance through the typical expected yaw angles during operation at highway speeds.
Standard

Off-Road Self-Propelled Work Machines Operator enclosure environment Part 4:Heating, ventilating and air conditioning (HVAC) test method and performance
2014-09-16
WIP
J3078/4
J3078/4 specifies a uniform test method for measuring the contribution to operator environmental temperature provided by a heating, ventilating and air conditioning system operating in a specific ambient environment. The method might not determine the complete climatic environment of the operator since this is also affected by heat load from sources other than those on the machine, for example solar heating. J3708/6 is to be used in conjunction with J3078/4 to determine more accurately the complete heat loading on the operator enclosure. Minimum performance levels for the machine’s operator enclosure heating, ventilating and air conditioning systems are established in J3708/4.
Standard

Discriminating Back-Up Alarm System Standard
1999-06-01
CURRENT
J1741_199906
This SAE Standard describes methods for evaluating the performance of the systems detection device, the minimum detection areas behind the machine, the visual and audible information presented to the operator and ground personnel, and the systems fault detection requirements. Also included are operator system function tests and maintenance procedures.
Standard

Tire Size Differential - Articulated Wheel Loader
2019-11-20
CURRENT
J2204_201911
This SAE Standard applies to the usage of tires of the same nominal size and tread type, but with different outside diameter for articulated front-end loaders. Articulated four-wheel-drive front-end loader performance and component life can be affected by excessive differences in the tire outside circumference and/or diameter. The purpose is to provide specific guidelines for the usage of tires with different outside circumference and/or diameter on articulated front-end loaders.
Standard

TIRE SIZE DIFFERENTIAL—ARTICULATED WHEEL LOADER
1994-05-01
HISTORICAL
J2204_199405
This SAE Standard applies to the usage of tires of the same nominal size and tread type, but with different outside diameter for articulated front-end loaders. Articulated four-wheel-drive front-end loader performance and component life can be affected by excessive differences in the tire outside circumference and/or diameter. The purpose is to provide specific guidelines for the usage of tires with different outside circumference and/or diameter on articulated front-end loaders.
Standard

Measurement of Aerodynamic Performance for Mass-Produced Cars and Light-Duty Trucks
2010-06-03
HISTORICAL
J2881_201006
This recommended practice provides a procedure for measuring and documenting the aerodynamic performance in a full-scale wind tunnel of passenger vehicles, i.e., mass-produced cars and light-duty trucks intended primarily for individual consumers. Testing or numerical modeling of pre-production and/or reduced-scale models is outside the scope of this document. Aerodynamic development procedures, i.e., methods to improve or optimize aerodynamic performance, are also excluded. It is well-known that aerodynamic performance results depend significantly on vehicle content and loading, as well as the wind tunnel itself (type, scale, and simulation qualities of the wind tunnel). Publication of non-standard test results causes unnecessary additional development work and incorrect perception of a vehicle’s anticipated aerodynamic performance by government, academia, and the general public.
Standard

Truck and Bus Aerodynamic Device and Concept Terminology
2019-08-02
CURRENT
J2971_201908
This SAE J2971 Recommended Practice describes a standard naming convention of aerodynamic devices and technologies used to control aerodynamic forces on truck and buses weighing more than 10000 pounds (including trailers).
Standard

Truck and Bus Aerodynamic Device and Concept Terminology
2013-04-09
HISTORICAL
J2971_201304
This SAE J2971 Recommended Practice Truck and Bus Aerodynamic Device Terminology document describes a standard naming convention of aerodynamic devices and technologies used to control aerodynamic forces on truck and buses weighing more than 10,000 pounds (including trailers).
Standard

Advanced Driver Interface Systems for Commercial Vehicle Operations
2003-01-22
CURRENT
J2571_200301
This SAE Recommended Practice defines an architecture, including operating modes, in which an advanced driver interface system and related software exist. It also provides reference to a set of Federal Highway Administration approved guidelines for human factors characteristics of such systems and related software.
Standard

Discriminating Back-Up Alarm System Standard
2008-12-04
WIP
J1741
This SAE Standard describes methods for evaluating the performance of the systems detection device, the minimum detection areas behind the machine, the visual and audible information presented to the operator and ground personnel, and the systems fault detection requirements. Also included are operator system function tests and maintenance procedures. The purpose of this document is to establish performance requirements for a Discriminating Back-Up Alarm System.
Standard

Air Conditioning Service Procedures for Off-Road Work Machines and Agricultural Tractors using R-134a or R-1234yf refrigerant
2016-09-12
WIP
J3126
This recommended practice provides technicians with safe and efficient techniques and general equipment recommendations for servicing Mobile Air Conditioning (MAC) systems into Off-Road Self-Propelled Work Machines as defined in SAE J1116 and Tractors and Machinery for Agriculture and Forestry as defined in ANSI/ASAE S390. Both refrigerants R 134a and R-1234yf are covered. Many service procedures are similar for both refrigerants but recovery, recycling, charging, electronic leak detection and other tools can be unique to each refrigerant.
Standard

Development of a Frequency Weighted Portable Ride Meter
1987-01-30
CURRENT
J1225_198701
The purpose of this report is to record the activities and recommendations of the Ride Meter Task Force assigned by the chairman of the SAE Joint Seating Subcommittee to determine availability of instrumentation to measure operator ride on mobile equipment. The desired characteristics of the meter included relatively low cost, easy to operate, highly portable, and sufficiently rugged to withstand the vibration levels encountered on agricultural or construction machines. It is recognized that a ride meter type instrument with a single numerical output provides only approximate indication of ride vibration quality, but is useful for general field evaluation or overall ride comparisons. A narrow band analysis of the vibration frequency spectrum is recommended for more accurate and complete results.
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