Vera Lauer

Application of Software Watchdog as a Dependability Software Service for Automotive Safety Relevant Systems

To face the challenges resulting from the increasing density of application software components and higher dependability requirements of the future safety systems in the automotive electronics, a dependability software service to monitor individual application software components in runtime is required in order to improve the overall system dependability. This paper proposes the application of a software watchdog service providing heartbeat monitoring and program flow checking. The software watchdog is integrated in a software platform for the automotive safety electronics. A model-based design with Matlab/Simulink and an evaluation of this software watchdog service in a hardware-in-the-loop validator are also given.

Timing analysis for verification of network architectures

In order to evaluate EE architectures regarding their timing and resource requirements, the knowledge of the required attributes and properties plays an important role. To be able to carry out conclusive evaluations, a standardized data exchange between the tools and a sufficient amount of timing information is necessary. Based on their research and preliminary development of future EE architectures, Daimler and Symtavision enable the OEM to develop a better under- standing for the increasing significance of timing-analysis through a new method.

Timing-Analysen für die Untersuchung von Vernetzungsarchitekturen

Fur die Bewertung von EE-Architekturen hinsichtlich deren Zeit- und Ressourcen- anforderungen spielt die Kenntnis der hierfur notwendigen Attribute und Eigenschaften eine wichtige Rolle. Um aussagekraftige Bewertungen in der Architekturphase durch- fuhren zu konnen, ist ein standardisierter Datenaustausch zwischen den Werkzeugen sowie eine hinreichende Menge an Timing-Informationen notwendig. Die Daimler AG und die Symtavision GmbH haben im Rahmen der Forschung und Vorentwicklung von zukunftigen EE-Architekturen beim OEM mit einem neuen Verfahren Verstandnis fur den steigenden Stellenwert von Timing-Analysen entwickelt.

Design Flows, Communication Based Design and Architectures in Automotive Electronic Systems

Summary form only given. The complete presentation was not made available for publication as part of the conference proceedings. A steadily increasing number of microprocessors and electronic components with the heavy demand of computation performance in automotive electronic systems affect substantially the design of networked ECUs in today as well as future cars. Novel approaches, based on heterogeneous hardware (Coarse- fine Grained reconfigurable Hardware, Microprocessors) could be a solution to handle the computation intensive tasks, e.g. for driver-assistance systems. The challenge here is to find an optimal trade-off between power consumption, cost, performance and flexibility which leads to the question which technology and which distribution (automotive function centralisation - decentralisation trade-offs!) will be targeted in future car electronics. Introducing novel architecture topologies and corresponding tool flows with standardised specification and verification are here severe challenges. A first approach to meet these challenges is the AUTOSAR development partnership, which aims at a standardisation of automotive software architecture. The purpose of this tutorial is to evaluate and discuss new concepts for communication based design of automotive electronic and car network systems, as well as to discuss and envisage future system design in automotive electronics. Both aspects, hardware / software design and tool-integration will be discussed. The main emphasis in this session is design-flow, tool-development, applications and system design. The tutorial is addressed to hardware and system engineers as well as to researchers. A set of presentations intended to set the stage for the discussion, will be followed by a panel where selected world-wide specialists in the field of automotive electronics will discuss the demands and interests of industry on novel technologies and systems and research activities for future automotive systems.