Table of contents
- Overview
- Fault handling
- Fail-operational vs fail-safe
- Complexity reduction
- Spatial firewalls
- Temporal firewalls
- Performance optimization cost efficiency
- Conclusion
Introduction
Modern x-by-wire systems such as steer-by-wire or brake-by-wire must deliver maximum safety and availability, relying entirely on electronics and software, making fail-operational design essential to ensure continuous operation even in the presence of faults, meeting ISO 26262 safety expectations.
This tech paper explains how fail-operational software architectures enable highly reliable x-by-wire systems by ensuring continuous operation even in the presence of faults, and outlines key concepts such as fault tolerance and avoidance, complexity reduction, software partitioning, and the use of spatial and temporal firewalls to achieve maximum safety, performance, and cost efficiency.
Resource type
Tech paper
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