A Methodological Framework for Model-Based Self-management of Services and Components in Dependable Cyber-Physical Systems

摘要

Modern automotive vehicles featuring ADAS (Advanced Driving Assistant Systems) and AD (Autonomous Driving) represent one category of dependable CPS (Cyber-Physical Systems). For such systems, the adaptation of generic purpose COTS (Commercial-Off-The-Shelf) services and components has been advocated in the industry as a necessary means for shortening the innovation loops and enabling efficient product evolution. This will however not be a trivial task due to the system safety- and time-criticality. This calls on one hand for formal specification of systems, and on the other hand for a systematic approach to module design, supervision and adaptions. Accordingly, we propose in this paper a novel method that emphasizes an integration of system models, formal contracts, and embedded services for effective self-management of COTS. The key modeling technologies include the EAST-ADL for formal system description and the A-G contract theory for module specification.