Dr. rer. nat.

Weiß, Gereon

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  • Publication
    Approach for iterative validation of automotive embedded systems
    ( 2010)
    Weiß, Gereon
    ;
    Zeller, Marc
    ;
    Eilers, D.
    ;
    Knorr, Rudi
    Architecture description languages (ADLs) allow specifying system information in architecture models. These are generally used for capturing early design decisions concerning system or software development. Therefore, ADLs can be utilized for an early and iterative validation of the modelled system. With EAST-ADL an automotive specific ADL is defined which allows describing an automotive system at different layers of abstraction targeting AUTOSAR systems. SystemC is an executable system modelling and simulation language which permits Hardware/Software-Co-Design. With the Transaction-Level Modeling (TLM) methodology the description of different layers of abstraction in SystemC is enabled. This work addresses the early validation of automobile electronic systems by providing a transformation of EAST-ADL models to SystemC at different layers of abstraction. This allows specific analysis with Hardware/Software Co-Simulation iteratively in the development process. The proposed approach is realized in a tool-chain and demonstrated by a typical automotive use case. Hence, we show the potential of an early validation of system and software designs based on architecture models.
  • Publication
    A multi-layered control architecture for self-management in adaptive automotive systems
    ( 2009)
    Zeller, Marc
    ;
    Weiß, Gereon
    ;
    Eilers, Dirk
    ;
    Knorr, Rudi
    In this paper we discuss the need of a novel control architecture for managing the growing complexity in modern vehicles and outline a multi-layered approach for self-management in adaptive automotive systems. With this multi-layered control architecture it is possible to react in an adequate and quick way to changes in the supervised technical system. Especially for complex distributed real-time systems with various different requirements and system objectives, like vehicles, this approach provides the necessary degree of flexibility and dependability. In a first evaluation of this control architecture in a realistic automotive scenario we show the advantages of the multi-layered approach compared to a traditional central control architecture.