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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.
Standard

Digital Annex of Diagnostic Trouble Code Definitions and Failure Type Byte Definitions

2018-05-01
WIP
J2012DA
The J2012 Digital Annex of Diagnostic Trouble Code Definitions Spreadsheet provides DTC information in an excel format for use in your organization's work processes. The column headings include the same information as contained in the J2012 standard. Information in the excel spreadsheet will be updated several times annually, and the spreadsheet includes a column heading denoting which DTC have been updated in the current version.
Standard

Electromagnetic Compatibility Measurement Procedures and Limits for Components of Vehicles, Boats (up to 15 m), and Machines (Except Aircraft) (16.6 Hz to 18 GHz)

2018-04-30
WIP
J1113/1
This SAE Standard covers the measurement of voltage transient immunity and within the applicable frequency ranges, audio (AF) and radio frequency (RF) immunity, and conducted and radiated emissions. By reference, ISO 11452-3, ISO 11452-7, ISO 11452-8, ISO 11452-10, ISO 11452-11, ISO 11452-2 and the emissions portion of ISO 7637-2 are adopted in place of SAE J1113-24, SAE J1113-3 , SAE J1113-22, SAE J1113-2, SAE J1113-28, SAE J1113-21 and SAE J1113-42, respectively. In the event that an amendment is made or a new edition is published, the new ISO document shall become part of this standard six months after the publication of the ISO document. SAE reserves the right to identify exceptions to the published ISO document with the exceptions to be documented in SAE J1113-24, SAE J1113-3, SAE J1113-22, SAE J1113-2, SAE J1113-28, SAE J1113-21 and SAE J1113-42 respectively. By reference, IEC CISPR 25 is adopted as the standard for the measurement of component emissions.
Standard

Guidelines for Safe On-Road Testing of SAE Level 3, 4, and 5 Prototype Automated Driving Systems (ADS)

2018-04-30
WIP
J3018
This document provides guidelines for the safe conduct of on-road tests of vehicles equipped with prototype conditional, high, and full (levels 3-5) automated driving systems (ADSs), as defined by SAE J3016. It does not include guidance for testing production ADSs intended for sale to the general public. The scope is further limited to testing of automated prototype vehicles on public roads. These guidelines do not address: • Testing of driver assist (Level 1) or partial (Level 2) automation systems, which rely on a human driver to monitor the environment. (See SAE J3016 for Definitions of Levels of Automated Systems.) • Closed-course testing. • Component-level testing. The precise regime of road testing for a particular prototype will depend on the intended level of automation and the targeted capabilities of the prototype (see SAE J3016 for more information).
Standard

Function Performance Status Classification for EMC Immunity Testing

2018-04-30
WIP
J1812
This SAE Standard provides a general method for defining the acceptable function performance status classification for the functions of automotive electronic devices upon application of the test conditions specified as described in appropriate EMC immunity test standards (for example, SAE J1113 and SAE J551). Testing of devices could be performed either on or off vehicles. Appropriate test signal and methods, Function Performance status, and test signal severity level would have to be specified in the individual cases.
Standard

Characterization, Conducted Immunity

2018-04-30
WIP
J2628
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

Considerations for ISO 26262 ASIL Hazard Classification

2018-04-28
CURRENT
J2980_201804
This SAE Recommended Practice presents a method and example results for determining the Automotive Safety Integrity Level (ASIL) for automotive motion control electrical and electronic (E/E) systems. The ASIL determination activity is required by ISO 26262-3:2011 [1], and it is intended that the process and results herein are consistent with ISO 26262:2011 [1]. The technical focus of this document is on vehicle motion control systems. It is limited to passenger cars weighing up to 3.5 metric tons. Furthermore, the scope of this recommended practice is limited to collision-related hazards associated with motion control systems. The recommended practice focused on motion control systems since the hazards they can create generally have higher ASIL ratings, as compared to the hazards non-motion control systems can create.
Standard

Electric Vehicle Power Transfer System Using a Three-Phase Capable Coupler

2018-04-25
CURRENT
J3068_201804
This document covers the general physical, electrical, functional, testing, and performance requirements for conductive power transfer to an Electric Vehicle using a Coupler capable of, but not limited to, transferring three-phase AC power. It defines a conductive power transfer method including the digital communication system. It also covers the functional and dimensional requirements for the Electric Vehicle Inlet, Supply Equipment Connector, and mating housings and contacts. Moveable charging equipment such as a service truck with charging facilities are within scope. Charging while moving (or in-route-charging) is not in scope.
Standard

Tension Indicating Washer Tightening Method for Fasteners

2018-04-24
CURRENT
J2486_201804
This SAE Recommended Practice covers installation and inspection methods for fasteners which are tensioned using Tension Indicating Washers (TIWs) as a means to ensure that adequate tension is developed in mechanically fastened joints. Figure 1 depicts a typical TIW, and Figure 2 depicts a fastener assembly with a TIW before and after tensioning. This document describes practices for the use of TIWs which are typically produced for use with SAE J429 Grade 5 and Grade 8 fasteners or their metric counterparts, although the same principals hold true for bolted joints using other fasteners. Users are advised to contact a manufacturer for advice on use of these products before using them with special fasteners or applications. This document defines and illustrates preferred installation and inspection methodologies. The contents of this document are presented as accurately as possible; however, responsibility for its application lies with the user.
Standard

Requirements for Composite Lighting Assemblies Used on Construction and Industrial Machinery

2018-04-23
WIP
J2121
This SAE Standard provides general design performance requirements and related test procedures for composite lighting unit assemblies, other than signaling and marking devices, used on construction and industrial machines as defined in SAE J1116. Purpose To provide general guidelines and design parameters for lighting assemblies used on construction and industrial machinery.
Standard

Maximum Exterior Sound Level for Snowmobiles

2018-04-23
WIP
J192
This SAE Recommended Practice establishes the instrumentation, test site, and test procedure for determining the maximum exterior sound level for snowmobiles. Sound propagation is directly related to the ground cover and provides the largest variation to the measured result. A correction factor is introduced to improve year round test repeatability of the results on grass surfaces by correcting their spectrum to be similar to snow covered spectra. Measured sound pressure levels are also highly dependent on the degree of track slip present when performing the vehicle acceleration. Operators should attempt to limit track slip as much as possible while maintaining the requirements described in 5.1.1.
Standard

Guide for Reliability Analysis Using the Physics-of-Failure Process

2018-04-18
CURRENT
J2816_201804
The Physics-of-Failure (PoF) is a science-based approach to reliability that uses modeling and simulation to design-in reliability. This approach models the root causes of failures such as fatigue, fracture, wear, and corrosion. Computer-Aided Design (CAD) tools have been developed to address various loads, stresses, failure mechanisms and sites. PoF uses knowledge of basic failure processes to prevent failures through robust design and manufacturing practices, and aims to: - Design-in reliability up front; - Eliminate failures prior to testing; - Increase fielded reliability; - Promote rapid, cost effective deployment of Health and Usage Monitoring Systems (HUMS); - Improve diagnostic and prognostic techniques and processes; and, - Decrease operational and support costs. This guide provides a high level overview of the methodology, process and advantages to performing a PoF assessment.
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