System integration requirements for ECU configuration in AUTOSAR

摘要

There is a need to document realtime capability and requirements, including requirements specifications. System integration includes mapping functional architectures to software architectures, creating the run-time environment (RTE) and OS configuration (schedule), and the integration of basic software elements. Creation and verification of the ECU configuration (including runnable mapping, task layout, and schedule configuration) is important for real-time capability. Timing analyses help to evaluate and document configurations, specify timing requirements for suppliers and provide the basis for pending design decisions. CPU load (software components, tasks, and runnables) and the relationship between data paths/ timing chains and the software architecture as well as timing requirements for chains and scheduling of functions to be integrated are equally important.