AUTOSAR Runtime Environment and Virtual Function Bus

This paper presents a selected set of concepts of the AUTomotive Open System ARchitecture. Runtime Environment (RTE) and the Virtual Function Bus (VFB) are core parts of the AUTOSAR system design and facilitate relocatability of software components, one of the key features of AUTOSAR. The goal of this paper is to show how the RTE and the VFB work together in order to realizes relocatability and locationßtransparent interaction. A detailed view on the responsibilities of the Runtime Environment is shown as well as how artifacts from the level of the Virtual Function Bus are used for the generation of the RTE. Further, the concepts of runnables and the RTE mechanisms for their management will be shown in detail. Finally, an overview on hardware interaction mechanisms in the AUTOSAR architecture with respect to the Runtime Environment will be presented. Stichworte: Automotive Open System Architecture, Runtime Environment, Virtual Function Bus, AUTOSAR, RTE, VFB, Runnables, Hardware Interaction