Term · Safety & Security
Fail-operational
A design principle where the system continues to deliver its function, possibly degraded, after a fault. It requires redundant channels, power domains and actuation paths plus arbitration to choose the healthy one.
- Also known as
- Fail-active
- Type
- Term
- Domain
- Safety & Security, Safety mechanisms
Notes
The central cost driver in autonomous vehicle electronics, since steering and braking must survive any single failure.
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Part of the Safety & Security glossary, with every term in the topic and the lifecycles, tools and standards that use them.
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