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Qualifying Ethernet physical layer transceivers (PHYs) for automotive use requires a rigorous test plan that ensures performance, reliability, and electromagnetic compatibility. SAE J2962-3 (revised February 2024) provides a unified recommended practice to minimize test variation across OEMs. This article highlights…

For automotive engineers and designers, understanding fiberboard terminology is essential for selecting the right material for interior trim, structural panels, and acoustic components. SAE J947™ JUN2023 provides standardized definitions that help avoid confusion across the supply chain. This guide breaks…

1. Gasoline Composition and Refining Processes Automotive gasolines are complex blends of hydrocarbons derived from petroleum, with a boiling range of approximately 30 to 225 °C (86 to 437 °F). Refining processes are used to both increase the yield of…

The rapid evolution of rechargeable energy storage systems (RESS) has introduced a critical challenge in end-of-life management: preventing cross-contamination during recycling. With a growing mix of chemistries—lead-acid, lithium-ion, nickel-metal hydride, and others—entering the same waste streams, the risk of safety…

Understanding the Standard and Its Purpose The SAE J2598:2020 recommended practice establishes a standardized and repeatable method for measuring the first three natural frequencies and corresponding loss factors of automotive disc brake pads. This procedure applies to modes between 500…

SAE J2582-2018 establishes the hardness, chemical analysis, and microstructural requirements for ductile iron castings used in high temperature automotive and allied applications. Commonly referred to as SiMo ductile iron, these castings are typical in piston-engine exhaust manifolds and turbocharger components.…

SAE J1402 outlines the minimum requirements for air brake hose assemblies used in automotive systems. Understanding the different hose constructions, fitting options, and performance criteria is essential for engineers specifying components for heavy-duty vehicle braking systems. This article covers the…

Executive Summary of the A/C Service Ports Task Force Findings 🛠️ The SAE J3266 report, based on MACS surveys, identifies service port leaks as a top repair issue. Key problems include missing caps (often due to lack of retention), inferior…

Austempered ductile iron (ADI) provides exceptional mechanical properties that are highly desirable for demanding automotive components. SAE J2477:2018 defines the minimum requirements for ADI castings, ensuring consistency in performance. This article breaks down the essential elements of the standard, including…

The SAE J915-2017 standard provides a foundational framework for the manual control sequence of automatic transmissions in passenger cars and light-duty trucks. This recommended practice, stabilized in 2017, outlines the shift pattern (PRNDL), gate designs, and critical safety interlocks needed…