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Standard

Laboratory Testing of Light Duty Vehicle Electric Cooling Fan Assemblies for Airflow Performance

2018-07-13
WIP
J2867

This SAE Recommended Practice is intended for use in testing and evaluating the performance of Light Duty automotive electric engine cooling fans. These Electric Cooling Fan (ECF) Assemblies are purchased by Light Duty Truck and Passenger Car OEM’s from suppliers. They are purchased as complete assemblies, consisting of the fan(s), motor(s), and shroud (see Figure 1); this Recommended Practice will only consider such complete assemblies. Some purchased assemblies using brush-type motors may also include control devices such as power resistors or pulse width modulation (PWM) electronics for speed control. In the case of brushless motor technology, the controller is an integral part of the motor where it also performs the commutation process electronically. The performance measurement would include fan output in terms of airflow and pressure, and fan input electric power in terms of voltage and current.

Standard

Glossary of Engine Cooling System Terms

2018-07-13
WIP
J1004
The objective of this glossary is to establish uniform definitions of parts and terminology for engine cooling systems. Components included are all those through which engine coolant is circulated: water pump, engine oil cooler, transmission and other coolant-oil coolers, charge air coolers, core engine, thermostat, radiator, external coolant tanks, and lines connecting them.
Standard

Planetary Gears - Terminology

2018-07-12
CURRENT
J646_201807
Figures 1 through 5 illustrate in simplified form some of the more common planetary gear arrangements in order to establish applicable terminology. Figures 6 and 7 provide additional examples that use elements of those gear arrangements. Gear ratio is the numerical ratio of input to output speed.
Standard

Motor Vehicle Brake Fluid Container Compatibility

2018-07-12
CURRENT
J75_201807
Motor vehicle brake fluid must conform to the requirements of SAE J1703 or J1704, not only when manufactured, but also after extended storage in any commercial packaging container. The purpose of this SAE Information Report is to generate an awareness of the major problems involved in the storage of brake fluids and, to some extent, provide means of circumventing them. It is also the purpose of this document to relate to experience and to test data accumulated and to list certain conclusions which should aid in the proper selection of containers for brake fluid.
Standard

Early Acquisition and Preservation of Information in a Motor Vehicle Crash

2018-07-12
CURRENT
J1674_201807
The purpose of this SAE Recommended Practice is to offer simplified and prioritized guidelines for collecting and preserving on-scene data related to motor vehicle crashes. It is intended that these guidelines improve the effectiveness of data collection, which will assist subsequent analysis and reconstruction of a particular crash. This document is intended to guide early data collectors whose objectives include documenting information related to the crash. It may be used by law enforcement personnel, safety officials, insurance adjusters and other interested parties. This document identifies categories of scene physical features that deteriorate relatively quickly and recommends documentation task priorities. Detailed methods of collecting data are not part of this document. However, some widely used methods are described in the references in Section 2.
Standard

Requirements for Engine Cooling System Filling, Deaeration, and Drawdown Tests

2018-07-12
CURRENT
J1436_201807
This SAE Recommended Practice is applicable to all engine cooling systems used in (1) Heavy-duty vehicles, industrial applications, and (2) Automotive applications. There are two categories of coolant reservoir tanks covered in the document: a Pressurized tanks b Un-pressurized tanks
Standard

Laboratory Measurement of Random Incidence Sound Absorption Tests Using a Small Reverberation Room

2018-07-10
WIP
J2883
This SAE Recommended Practice describes a laboratory test procedure for measuring the random incidence sound absorption performance of a material or a part in a small size reverberation room by measuring decay rates. The absorption performance may include sound absorption coefficient of the test sample and or the amount of energy absorbed by the test sample. Materials for absorption treatments may include homogeneous materials, nonhomogeneous materials, or a combination of homogeneous, nonhomogeneous, and/or inelastic impervious materials. These materials are commonly installed in the mobility products and in the transportation systems such as ground vehicles, marine products, aircraft, and commercial industry (in industrial and consumer products) to reduce reverberant sound build-up and thus reduce the noise level in the environment by minimizing reflections off of hard surfaces.
Standard

Passenger Car Tire Performance Requirements and Test Procedures

2018-06-29
CURRENT
J918_201806
This SAE Standard provides minimum performance requirements and accompanying uniform laboratory test procedures for evaluating certain essential characteristics of new tires and newly retreaded tires intended for use on passenger cars. (The requirements published in this SAE Standard pertain to tire sizes currently used on American passenger cars and popular sizes used on imported passenger cars. For related information on tire sizes not listed, contact SAE Automotive Headquarters, 18121 East Eight Mile Road, East Detroit, Michigan 48021.)
Standard

Diagnostic Link Connector Security

2018-06-23
WIP
J3138
This document describes some of the actions that should be taken to help ensure safe vehicle operation in the case that any such connected device (external test equipment, connected data collection device) has been compromised by a source external to the vehicle. In particular, this document describes those actions specifically related to SAE J1979, ISO 15765, and ISO 14229 standardized diagnostic services. Generally, the following forms of communication bus connection topologies are used in current vehicles: a. Open access to communication buses b. Communication buses isolated via a gateway c. Hybrid combinations of a. and b.
Standard

Reflex Reflectors

2018-06-19
CURRENT
J594_201806
This SAE Standard provides test procedures, requirements, and guidelines for reflex reflectors.
Standard

Welded and Cold-Drawn, High Strength (690 MPa Tensile Strength) Low Alloy Steel Hydraulic Tubing, Stress Relieved Annealed for Bending, Flaring, Cold Forming and Brazing

2018-06-15
CURRENT
J2833_201806
This specification covers stress relieved annealed electric resistance welded and cold-drawn single-wall high strength low alloy steel tubing intended for use in hydraulic pressure lines and in other applications requiring tubing of a quality suitable for bending, flaring, cold forming, and brazing. The grade of material produced to this specification is of micro-alloy content. Nominal reference working pressures for this tubing are listed in ISO 10763 and SAE J1065. CAUTION: Sub-critically annealed steels are often produced using anneal temperatures below the Lower Critical Temperature (AC1) of the given steel to achieve the desired strength levels. Welding, brazing, or other processing methods that subject the tube material or assembly to temperatures near or above AC1 might initiate isothermal transformation of the tube microstructure and compromise the strength of the tube in the heat affected zone by further annealing the tube.
Standard

Standard for Fuel Systems in Fuel Cell and Other Hydrogen Vehicles

2018-06-15
CURRENT
J2579_201806
The purpose of this document is to define design, construction, operational, and maintenance requirements for hydrogen fuel storage and handling systems in on-road vehicles. Performance-based requirements for verification of design prototype and production hydrogen storage and handling systems are also defined in this document. Complementary test protocols (for use in type approval or self-certification) to qualify designs (and/or production) as meeting the specified performance requirements are described. Crashworthiness of hydrogen storage and handling systems is beyond the scope of this document. SAE J2578 includes requirements relating to crashworthiness and vehicle integration for fuel cell vehicles. It defines recommended practices related to the integration of hydrogen storage and handling systems, fuel cell system, and electrical systems into the overall Fuel Cell Vehicle.
Standard

Taxonomy and Definitions for Terms Related to Driving Automation Systems for On-Road Motor Vehicles

2018-06-15
CURRENT
J3016_201806
This SAE Recommended Practice describes motor vehicle driving automation systems that perform part or all of the dynamic driving task (DDT) on a sustained basis. It provides a taxonomy with detailed definitions for six levels of driving automation, ranging from no driving automation (level 0) to full driving automation (level 5), in the context of motor vehicles (hereafter also referred to as “vehicle” or “vehicles”) and their operation on roadways. These level definitions, along with additional supporting terms and definitions provided herein, can be used to describe the full range of driving automation features equipped on motor vehicles in a functionally consistent and coherent manner.
Standard

Performance Specification for Welded Wire-to-Wire Splices

2018-06-14
CURRENT
USCAR45
SAE/USCAR-45 defines test methods and performance requirements for ultrasonically-welded wire-to-wire splices for automotive applications. Face-to-face, butt splice, and center strip configurations per Figure 1 can be tested. The tests defined in this specification subject samples on test to stresses that simulate a lifetime of exposure for a road vehicle. Stresses called out in this specification include thermal shock, temperature/humidity cycling and mechanical stress from different directions.
Standard

Recommended Practice for Pass-Thru Vehicle Programming

2018-06-14
WIP
J2534/1
This SAE Recommended Practice describes a standardized interface that connects between a standard personal computer (PC) and vehicle. The purpose of this interface is to enable the reprogramming of emission-related control modules, in 2004 and later model year vehicles. The interface shall consist of the necessary hardware and/or software to support the requirements defined in this document. It is expected that vehicle manufacturers will provide the software application that will control the Pass-Thru Interface, to perform the actual reprogramming. The goal of this document is to ensure that reprogramming software from any vehicle manufacturer is compatible with interface supplied by any tool manufacturer. A common interface for all vehicle manufacturers reduces the tool costs for aftermarket garages, while allowing each vehicle manufacturer to control the programming sequence for the electronic control units (ECUs) in their vehicles.
Standard

Industry Review of xEV Battery Size Standards

2018-06-12
CURRENT
J3124_201806
This Technical Information Report (TIR) will review the global industry battery size standards for xEV vehicles to provide guidance on available cell sizes for engineers developing battery powered vehicles. The TIR will include a review of the sizes and standards that are currently being developed or used for cylindrical cells, pouch (or polymer) cells, and for prismatic can cells. The lithium-ion cell will be the focus of this survey, but module and pack level size standards, where available, will also be included.
Standard

Light Vehicle Dry & Wet Stopping Distance Test Procedure

2018-06-12
CURRENT
J2909_201806
This document establishes best practices to measure vehicle stopping distance on dry or wet asphalt in a straight path of travel intended for the purpose of publishing stopping distance by manufacturers and media organizations for vehicles with original equipment tires. It is recommended that the test method within be adopted for all vehicles less than 4536 kg (10000 pounds) GVWR. This procedure is typically used with initial speeds of 100 km/h and 60 mph, but other speeds may be used. Since tires play a significant role in stopping distance, this procedure covers tire types typically used as original equipment on new vehicles including all-season, summer, and all-terrain tires. This document may serve as a procedural guideline for all tire types, but the surface temperature correction formulas in this procedure were developed using all-season tires and may not be applicable to other tire types.
Standard

Characterization, Conducted Immunity

2018-06-12
CURRENT
J2628_201806
The methods included in this document are: a Voltage-Temperature Design Margins. b Voltage Interruptions and Transients. c Voltage Dropouts and Dips. d Current Draw Under a Number of Conditions. e Switch Input Noise These methods are best applied during the Development stage but can be used at all stages (e.g., Pre-Qualification, Qualification or Conformity).
Standard

On-Highway Equipment Control and Communication Network

2018-06-12
CURRENT
J1939/1_201806
SAE J1939-1 On-Highway Equipment Control and Communication Network specifies the minimum set of SAE J1939 documents that define the Truck and Bus Control and Communications Vehicle Network as it applies to on-highway equipment. Vehicles covered include all on-highway straight trucks and combination vehicles. A combination vehicle consists of one towing vehicle (tractor) and one or more towed vehicles (trailers and dollies). Dolly axles within the road train are considered to be towed vehicles.
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