Quo Vadis SAE J1939 Standardization

Due to new application layer requirements, SAE is continuing to develop the J1939 standard, which is primarily used to network powertrains in commercial vehicles. However, optimizations and extensions are being made in the other communication layers as well, right up to the physical transmission layer. This article summarizes the current state of discussions within the SAE J1939 working committee, such as the planned introduction of the 500 kBit physical transmission layer and changes to network management. Moreover, it also explains ongoing efforts to standardize J1939 in AUTOSAR Release 4 and WWH-OBD diagnostics.

Published in Elektronik automotive, issue 12/2010

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