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Standard

Model Based Functional Safety

2018-05-17
WIP
SAE1005
Provides standard guidance on major tasks and activities and how to implement and manage Functional Safety and software system safety aspects of Model Based System Engineering (MBSE). Process focus is on safety-critical functions (SCF) of complex software intensive systems being modeled and depicted graphically as part of MBSE and software engineering to ensure safety engineering aspects are tracked and captured as part of models to enhance safety documentation and produce objective safety evidence.
Standard

Performance Requirements for Motor Vehicle Headlamps

2018-05-16
CURRENT
J1383_201805
This SAE Recommended Practice is intended as a guide toward standard practice and is subject to change to keep pace with experience and technical advances. This document establishes performance requirements for headlamps.
Standard

Internal Combustion Engines - Piston Ring-Grooves

2018-05-16
CURRENT
J2275_201805
There is no ISO standard equivalent to this SAE Standard. This SAE standard identifies and defines the most commonly used terms for piston ring-groove characteristics, specifies dimensioning for groove widths, and demonstrates the methodology for calculation of piston groove root diameter. The requirements of this document apply to pistons and rings of reciprocating internal combustion engines and compressors working under analogous conditions, up to and including 200 mm diameter and 4.5 mm width for compression rings and 8.0 mm width for oil rings. The specifications in this document assume that components are measured at an ambient temperature of 20 °C (68 °F). Tolerances specified in this document represent practical functional limits and do not imply process capabilities.
Standard

Power Cylinder Friction: Mechanisms

2018-05-16
CURRENT
J2904_201805
This document covers the mechanisms from the power cylinder which contribute to the mechanical friction of an internal combustion engine. It will not discuss in detail the influence of other engine components or engine driven accessories on friction.
Standard

Tests to Define Tire Size (Geometry), Mass, and Inertias

2018-05-16
CURRENT
J2717_201805
This SAE Recommended Practice describes a trio of test methods which determine basic tire size (geometry), mass, and moments of inertia. The methods apply to any tire so long as the equipment is properly scaled to conduct the measurements for the intended test tire. The data are suitable for determining parameters for road load models and for comparative evaluations of the measured properties in research and development. NOTE: Herein, road load models are models for predicting forces applied to the vehicle spindles during operation over irregular surfaces paved or unpaved. Within the context of this Recommended Practice, forces applied to the surface on which the tire is operating are not considered.
Standard

Low Speed Enveloping Test with Perpendicular and Inclined Cleats

2018-05-16
CURRENT
J2731_201805
This SAE Recommended Practice describes a test method for measuring the forces and moments generated at a spindle when a tire rolls over a rectangular obstacle, cleat, at very low speed. The cleat used in a particular test condition is configured with its crest either perpendicular, 90 degrees, to the path of the tire or optionally with its crest inclined at an angle to the path of the tire. The carriage to which the spindle is attached is rigidly constrained in position during each test condition so as to provide a good approximation to fixed loaded radius operation. The method discussed in this document provides cleat envelopment force and moment and tire angular position histories as functions of distance traveled. These histories are essentially free from variations due to tire non-uniformities. The method applies to any size tire so long as the equipment is properly scaled to conduct the measurements for the intended test tire.
Standard

Brake Rotor Thermal Cracking Procedure for Vehicles Below 4 540 kg GVWR

2018-05-16
CURRENT
J2928_201805
This recommended practice is derived from common test sequences used within the industry. This procedure applies to all on-road passenger cars and light trucks up to 4 540 kg of GVWR. This recommended practice does not address other aspects such as performance, NVH, and durability. Test results from this recommended practice should be combined with other measurements and dynamometer tests (or vehicle-level tests), and acceptance criteria to validate a given design or configuration.
Standard

Front Position Lamp

2018-05-16
WIP
J222
This SAE Standard provides test procedures, requirements, and guidelines for a Front Position lamp.
Standard

J1349 Certified Power Engine Data for GM as used in 2019 Chevrolet Silverado / GMC Sierra - Level 2

2018-05-15
CURRENT
CPGM2_19SILVSIE
This product includes information on the manufacturer, engine, applications, testing location, certified maximum horsepower, certified maximum torque along with the certified curves of horsepower and torque over a wide range of engine RPM speeds. In addition, this product contains complete engine information such as displacement, cylinder configuration, valve train, combustion cycle, pressure charging, charge air cooling, bore, stroke, cylinder numbering convention, firing order, compression ratio, fuel system, fuel system pressure, ignition system, knock control, intake manifold, exhaust manifold, cooling system, coolant liquid, thermostat, cooling fan, lubricating oil, fuel, fuel shut off speed, etc. Also included are all measured test parameters outlined in J2723.
Standard

Broadband PLC Communication for Plug-in Electric Vehicles

2018-05-15
WIP
J2931/4
This SAE Technical Information Report SAE J2931/4 establishes the specifications for physical and data-link layer communications using broadband Power Line Communications (PLC) between the plug-In electric vehicle (PEV) and the electric vehicle supply equipment (EVSE) DC off-board-charger. This document deals with the specific modifications or selection of optional features in HomePlug Green PHY v1.1 (HomePlug GP1.1) necessary to support the automotive charging application over Control Pilot lines as described in SAE J1772™. PLC may also be used to connect directly to the Utility smart meter or home area network (HAN), and may technically be applied to the AC mains, both of which are outside the scope of this document.
Standard

Estimated Young's Modulus of Finished Brake Pads using Ultrasound

2018-05-14
WIP
J3175
This SAE Recommended Practice specifies a method for testing and measuring an estimated Young's modulus of brake pad assemblies using ultrasound. This RP applies to disc brake pad assemblies and its coupons or segments used in road vehicles.
Standard

Glossary of Terms Related to Fluid Filters and Filter Testing

2018-05-14
WIP
J1124
Over the years during which fluid filtration systems have been developing, many terms have come into use for descriptions of characteristics of filter media, filter assemblies, test methods, and test materials. Inevitably, some terms have been applied loosely, so that the same term may have different meaning to different people, or in different frames of reference. Recognizing the need for clearly defined terms, which can have only one meaning for all persons in all circumstances, so that documents dealing with standard methods of evaluation of filters will have only one interpretation, the Filter Test Methods Subcommittee of the SAE Engine Committee has compiled this Glossary of related terms. No attempt has been made to produce an all-inclusive document, containing definitions of all terms related to all types of fluid filters. Instead, the Glossary is confined to the terms likely to be encountered in relation to filters for lubricating oil and fuels.
Standard

Service Specific Permissions and Security Guidelines for Connected Vehicle Applications

2018-05-11
WIP
J2945/5
The SAE J2945/x series of standards define a set of applications that among other things use messages from the J2735 message set dictionary. Authenticity and integrity of the communications for these applications are ensured using digital signatures and IEEE 1609.2 digital certificates, which also indicate the permissions of the senders using Provider Service Identifiers (PSID) and Service Specific Permissions (SSPs). The PSID is associated with an application specification that unambiguously describes how to build interoperable instances of that application. The SSP defined in that application specification is the means by which that application can express state dependent permissions to engage is particular subsets of the activities specified therein.
Standard

J1939 Digital Annex

2018-05-10
CURRENT
J1939DA_201805
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Standard

Brake-Stroke Indicator Design Guideline for Cam or Disc Air-Brake Actuators

2018-05-07
CURRENT
J1953_201805
This SAE Recommended Practice shall cover mechanical-brake adjustment limit stroke indicators for actuators with visible exposed pushrods and electrical-brake adjustment limit stroke indicators for all air-brake actuators. This device shall indicate the foundation brake(s) may require adjustment or service when inspected per vehicle manufacturer's procedures. A measurement shall be made to determine actual stroke measurement for any system not factory calibrated. Stroke indication accuracy of an air-brake actuator can be assured only when all of its components are supplied by the original brake actuator manufacturer.
Standard

Comprehensive Life Test for 12 V Automotive Storage Batteries

2018-05-07
CURRENT
J2801_201805
This SAE Standard applies to 12 V, flooded and absorptive glass mat lead acid automotive storage batteries of 200 minutes or less reserve capacity and cold crank capacity greater than 200 amperes. This life test is considered to be comprehensive in terms of battery manufacturing technology; applicable to lead-acid batteries containing wrought or cast positive grid manufacturing technology and providing a reasonable correlation for hot climate applications. This document is intended as a guide toward standard practice, but may be subject to change to keep pace with experience and technical advances.
Standard

Recommend Practice for an Engineering Analysis for A/C Efficiency Credits

2018-05-03
WIP
J3174
Under US GHG and CAFE regulations, manufacturers are required to perform confirmatory testing to validate air conditioning credits, ref. 40 CFR 86.1868–12, CO2 credits for improving the efficiency of air conditioning systems. The purpose of this Reccomended Practice is to provide manufacturers with updated criteria for the 2020 and later model years. This Recommended Practice discribes the work done by the IMAC GHG CRP to develop test procedures, publish SAE Standards and determine performance requirements to demonstrate the performance of A/C technologies from the pre-approved credit menu meeting regulatory requirements Also, enclosed in this Recommended Practice, are instructions that can be used by vehicle manufacturers in establishing an engineering analysis in lieu of performing the AC17 test on a vehicle which does not incorporate the credit-generating technologies.
Standard

Wheel End Assembly and Axle Spindle Interface Dimensions--Truck and Bus

2018-05-02
WIP
J2475

This recommended practice contains dimensions and tolerances for spindles in the interface area. Interfacing components include axle spindle, bearing cones, bearing spacer, seal and wheel hub. This recommended practice is intended for axles commonly used on Class 7 and 8 commercial vehicles. Included are SAE axle configurations FF, FL, I80, L, N, P, R, U, and W.

Standard

Reflex Reflectors for Use on Vehicles 2032 mm or More in Overall Width

2018-05-02
WIP
J2041
This SAE Standard provides test procedures, requirements, and guidelines for reflex reflectors used on vehicles 2032 mm or more in overall width. Reflex reflectors conforming to these requirements may also be used on vehicles less than 2032 mm in overall width.
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