Definitions and Scope The SAE J1491 standard provides a repeatable method for measuring vehicle acceleration and launch response. It defines key terms essential for consistent testing. Term Definition Time Zero Starting point for Launch Response Time and Acceleration Response Time,…

The SAE J3217 standard, issued in June 2022, defines comprehensive profiles for V2X electronic fee collection. It establishes a concept of operations, a reference system architecture, user needs, functional and performance requirements, and ASN.1 message definitions. This enables interoperable and…

In the world of friction materials—especially brake pads—the reliability of your compressibility data directly impacts product quality and safety. Without a validated test system, even the most rigorous quality control plan can produce misleading results. That’s where SAE J3079/1-2021 comes…

1. Understanding Valve Guide Basics Valve guides are essential components in internal combustion engines, serving as axial bearings for the valve stem and ensuring proper alignment with the seat. They also act as heat sinks, dissipating heat from the valve…

The SAE J2860 recommended practice provides the essential user’s manual for the Hybrid III Large Male test dummy, the standard anthropomorphic test device (ATD) used in vehicle crash testing. Stabilized in 2023, this document represents decades of validated engineering and…

Overview and Use Cases Accurate knowledge of road conditions and users is essential for Roadside Units (RSUs) and V2X vehicles to make safe driving decisions. SAE J3224 defines a standard message structure and information elements for sharing sensor-detected objects among…

This article summarizes the SAE Recommended Practice J450:2017, which defines and distinguishes between the terms yield strength and yield point. It provides guidance on their proper use in materials testing and specification, helping engineers select the correct term based on…

The SAE J2862:2023 standard is the definitive user’s manual for the Small Adult Female Hybrid III test dummy—the 5th percentile female anthropomorphic test device (ATD) used worldwide in automotive crash testing. Now stabilized, this information report provides complete, mature guidance…

Plug-in electric vehicle (PEV) charging differs significantly from conventional refueling—charging sessions can last hours, requiring customers to remotely monitor and control the process. SAE J2836/5:2021 addresses this need by defining use cases for communication between PEVs and their customers. This…

As electric vehicles become a larger part of the energy ecosystem, the need for standardized communication between vehicles, chargers, and the grid grows. SAE J2836/3 (revised 2024) provides an information report that outlines use cases for plug-in electric vehicles (PEVs)…

1. Standard Scope and Purpose SAE J2836/6 is an information report that defines use cases for communication between a plug-in electric vehicle (EV) and the wireless EV supply equipment (WEVSE) for magnetic-field wireless power transfer (MF-WPT) per SAE J2954. It…

SAE J1654 is a surface vehicle standard that specifies requirements for unshielded high voltage primary cable used in electrical systems with nominal system voltages up to 600 V or 1000 V (ACrms or DC). It covers unshielded single-conductor cables with…

SAE J2836-1-2019 establishes a structured set of use cases for communication between plug-in electric vehicles (PEVs) and the electric power grid. This information report defines the communication pathways, actor roles, and interaction flows necessary to support energy transfer and grid…

SAE J1111, reaffirmed in April 2024, defines a consistent nomenclature for the major components and parts of grapple skidders. It categorizes grapple and boom assemblies into distinct types and provides a standardized vocabulary that helps engineers, manufacturers, and operators communicate…

Collision repair has evolved significantly with advancements in vehicle design and manufacturing. To ensure repairs meet safety and performance standards, accurate dimensional measurements are critical. SAE J1828™ (2019) provides uniform reference and dimensional guidelines that help technicians and claims representatives…

This article provides an overview of SAE J2301, a recommended practice that specifies main dimensions and tolerances for end yoke earwork connections used in common North American drivelines. The document covers three primary earwork styles: half round (strap connection), full…

Note: The SAE J2490 standard specifically evaluates variations in wet friction system performance as a function of speed, temperature, and pressure. Only three variables may be changed by the user: friction material, test fluid, and reaction plates. All other test…