Phase 2 of the SAE Cooperative Research Program (CRP) on SAE J1939 Functional Safety began earlier in 2017. The goal of this phase of the program is to achieve functional safety certification of the SAE J1939 Functional Safety Protocol and Safety Manual by an appropriate agency, and to publish the certified manual by the end of the year.

The program’s first phase, completed in 2016, provided the technical detail required to develop the protocol and author the manual. This included an evaluation of the proposed protocol design, including evaluation of the safety integrity level (SIL) impact of various features of the protocol. The goal of Phase 2 is to have the protocol and manual certified as capable of meeting SIL 2 and SIL 3 safety levels.

Certification of the SAE J1939 Functional Safety Protocol and Safety Manual is expected to allow companies to reference the certification for each compliant implementation. Companies that will need to use the protocol and manual are strongly encouraged to financially participate in Phase 2 activities designed to achieve certification of the protocol and manual. Without certification of this protocol and manual, companies using the protocol will need to pay for agency certification activities for each implementation.

Companies that participate in Phase 2 of the program will benefit by having the ability to:

  • Access the draft of the certified SAE J1939 Functional Safety Protocol standard and Safety Manual prior to SAE publication
  • Access the design testing scripts (CANoe/CANalyzer) prior to certification and SAE publication
  • Implement protocol and software design prior to certification and SAE publication
  • Reference certification on compliant products prior to SAE publication
  • Have technical influence on the protocol and Safety Manual design and SIL capabilities

The protocol was started during Phase 1 of the program, based upon the guidelines and knowledge attained during technical and evaluation sessions. Additional engineering was also performed in order to simplify the design and improve application versatility while still attaining SIL 2 and SIL 3 capability. Any companies wishing to participate in, or receive further information about, Phase 2 should contact Gary Pollak (Gary. Pollak@sae.org).

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