MICROSAR Safe
AUTOSAR basic software for safety-relevant functions according to ISO 26262
MICROSAR Safe is a joint solution by TTTech Automotive and Vector for using standard software modules in ECUs with safety-related functions (Software components, SWCs). The modules of MICROSAR Safe are an extension to the AUTOSAR Basic Software; they ensure that the basic software cannot disturb any safety-related SWCs.
MICROSAR Safe allows software with different safety level classifications to coexist on one ECU. The solution conforms to AUTOSAR 4.0, is certified to ISO 26262 and consists of the modules SafeCom, SafeExecution and SafeSelfTest.
Functions
- SafeExecution: Freedom from Interference of non-safety-related SWCs and safety-related SWCs by runtime monitoring, memory protection and program flow monitoring
- SafeCom: Safe intra-ECU and inter-ECU communication (end-to-end validation)
- SafeSelfTest: Periodic checking of the hardware during operation
Advantages
- Solution for all Automotive Safety Integrity Levels (ASIL) up to ASIL D
- Reduces qualification costs
- Supports different ASILs on one controller
- Downward compatible to AUTOSAR 3.x
