I have long been a vocal critic of the barely readable standards issued by SAE International. And to be fair, SAE is hardly alone—standards bodies, as a species, seem united by a peculiar compulsion: the need to prove their intellectual worth by rendering their documents as impenetrable as possible. Clarity,…
Posts tagged as “J1939 CAN FD”
Executive Summary The global shift toward electrification in the commercial vehicle sector, particularly in medium- and heavy-duty trucks, is reshaping automotive communication standards. SAE J1939, the de facto standard for vehicle network communication in diesel-powered commercial vehicles, now faces a new challenge—and opportunity—as electric trucks become more prominent. This report…
Overview of SAE J1939 and Recent CAN FD/XL Enhancements SAE J1939 Basics: SAE J1939 is a high-level communications protocol that has long used the CAN (Controller Area Network) bus for in-vehicle networking on heavy-duty and off-road vehicles (e.g. trucks, agricultural and construction machinery). It operates on a 29-bit CAN identifier…
