Automotive System Safety

Appendix BISO 26262 – Notes on Automotive Implementation

Introduction

ISO 26262 was originally released November 15, 2011, and has been revised December, 2018. One of the reasons for the revision was to update it based on usage. Because the standard was written so that many experts could agree on the wording, different interpretations and practices are used with the intent of complying with the standard. The statements and judgements made in this appendix represent the opinion of the author based on his experience. They do not represent the results of a survey of the industry and are not intended to be absolute. Nevertheless, for personnel who may have had experience in other industries, this review may be useful. ISO 26262 addresses functional safety only; it does not address safety of the intended function (SOTIF).

Also, the definitions are not grouped as they are in IEC 61508‐4 – they are grouped in this discussion in order to preserve some context. In addition, there are pages of acronyms for use in the standard. Many are common terms for electrical engineers working in the automotive domain, but others are not, like BB for body builder (a T&B term). This can make reading the standard more cryptic. If the reader is purchasing parts of the standard, part 1 is advisable; the glossary contains much informative content and will be useful.

ISO 26262‐1 – Glossary

Use of Terms

There are 185 definitions in ISO 26262‐1, more than in IEC 61508‐4. The definitions are intended ...