Learn AUTOSAR-SAFETY-MODULES with Real Code Examples
Updated Nov 27, 2025
Architecture
Safety modules sit on top of AUTOSAR BSW and interface via RTE
Include watchdogs, diagnostic managers, and safety tasks
Monitor task execution, timing, and communication
Integrate with memory protection and redundancy mechanisms
Provide hooks for application-level safety checks
Rendering Model
Safety routines executed inside ECU software
Watchdog and redundancy tasks run at runtime
Diagnostic events trigger logs and safe state transitions
Interactions with RTE and communication stacks monitored
Fail-safe behavior ensures system safety under faults
Architectural Patterns
Safety Manager overseeing all safety tasks
Redundant task execution for critical functions
Event-driven error detection
Integration with diagnostic and communication modules
Fail-safe transitions triggered automatically
Real World Architectures
Brake-by-wire safety systems
Steer-by-wire ECUs
Electric powertrain safety monitoring
ADAS redundancy and fail-safe control
Multi-ECU distributed safety-critical architectures
Design Principles
ISO 26262 compliance
Modular and reusable safety components
Integration with AUTOSAR BSW and RTE
Redundancy and fail-safe mechanisms
Robust error detection and reporting
Scalability Guide
Modular configuration for multi-ECU systems
Redundancy management across multiple cores or ECUs
Integration with distributed automotive networks
Simulation of large-scale safety scenarios
Version control and traceability for large projects
Migration Guide
Update ARXML to match latest AUTOSAR version
Verify RTE and BSW compatibility
Test all safety routines after migration
Validate ISO 26262 compliance
Document changes and backup previous configurations