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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

Torque Ratings for Power Take-off Mounting Pads

2003-07-25
HISTORICAL
J2662_200307
This SAE Recommended Practice is intended to serve as a reference for the amount of torque that a Power Take-Off can induce on the transmission mounting pad. This document will apply to six-bolt, eight-bolt, and rear mounted power take-offs.
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

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

PERFORMANCE PREDICTION OF ROLL-OVER PROTECTIVE STRUCTURES (ROPS) THROUGH ANALYTICAL METHODS

1979-05-01
HISTORICAL
J1215_197905
This report discusses the use of specialized analytical procedures that can be used to predict the structural behavior of ROPS and machine frame systems subjected to testing as described in SAE Recommended Practice J1040. For practical reasons, these complex calculations require the use of computerized methods. Specific approaches that are thought to be essential to preparing accurate analytical predictions are described. The importance of an experienced ROPS analyst is reviewed. The use of analytical procedures to predict the performance of ROPS is especially desirable for ROPS designed for installation on very large off-road machines, where problems of testing are extraordinarily great, and for predicting the effects of changes to proven ROPS designs before retesting. This report also covers the use of these analytical techniques as ROPS design tools.
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.
Standard

Assessment of Evaluation Method Types to Determine Energy Efficiency of Multi-Vehicle Systems

2022-06-09
CURRENT
J3147_202206
This document provides an assessment of current engineering test and simulation standards and methods used to determine the fuel efficiency, freight efficiency and emissions of single-vehicle systems comprised primarily of on-road trucks and buses with GVWR of more than 10000 pounds (4535 kg). This document provides guidance on the applicability and use of each test and simulation standard, method and technology discussed for multi-vehicle systems.
Standard

Relating Experimental Drive Distraction and Driving Performance Metrics to Crash Involvement - Definitions of Terms and Concepts

2018-10-18
CURRENT
J3151_201810
This Information Report provides functional definitions and discussions of key terms and concepts for relating the experimental evaluation of driver distraction to real-world crash involvement. Examples of driver distraction and driving performance metrics include those related to vehicle control, object and event detection and response (OEDR), physiological indicators, subjective assessments, or combinations thereof. Examples of real-world crash involvement metrics include the epidemiological effect size measures of risk ratio, rate ratio, and odds ratio. The terms and concepts defined in this document are not intended to contribute to methodologies for assessing the individual metrics within a domain; these are covered in other SAE documents (e.g., SAE J2944) and SAE technical reports. For any measure chosen in one domain or the other, the goal is to give general definitions of key terms and concepts that relate metrics in one domain to those in the other.
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