Enhanced quality using intensive test and analysis on simulators
Résumé
Embedded systems are becoming ubiquitous and are subject to demanding standards in both safety and reliability. Modern vehicles, which must respect ISO 26262 standards, use up to 100 Electronic Control Unit (ECUs). Advances in microelectronics enable integration of more functions in the ECU, but at the cost of greater unreliability in hostile operating environments, such as electromagnetic fields, temperature, and humidity. Their software mainly drives embedded system flexibility and smartness. However due to lack of automation, its validation and verification (V&V) takes place throughout the design process and tends to swallow up 40% to 50% of the total development cost. The 'Enhanced Quality Using Intensive Test Analysis on Simulators' (EQUITAS) project intends to limit the impact of software V&V on embedded systems cost and time-To-market while improving reliability and functional safety. Project activities include: development of a continuous tool-chain to automate the V&V process of embedded computers, improving the relevance of the test campaigns by detecting the redundant tests using equivalence classes, providing assistance for hardware failure effect analysis (FMEA), and finally assessing the tool-chain under the ISO 26262 requirements.
Mots clés
Chains
Control systems
Cost benefit analysis
Costs
Crashworthiness
Electromagnetic fields
Equivalence classes
Microelectronics
Quality control
Reliability analysis
Software reliability
Software testing
Systems analysis
Testing
Verification
Automotive
Electronic control units
Embedded computers
Hardware failures
Operating environment
Project activities
Validation and verification
Virtual plateform
Embedded systems