This paper describes a new FlexRay network parameter optimization (NPO) method consisting of two straightforward steps: design the lengths of the static (ST) slot and the communication cycle. In the first step, we formulate an optimal problem for designing the ST slot length. The bandwidth limitation, composed of protocol overhead and unused network resources, is considered as optimal criterion for efficient network usage. With the exploration of design space (i.e., ST slot lengths which satisfy the constraints of the FlexRay specifications), the optimal ST slot length is determined. Based on the result of the first step, the optimal communication-cycle length is designed in the next step. In this step, we proposed an algorithm for analyzing the worst case response times (WCRTs) for the ST and dynamic frames. Using this algorithm, the optimal communication-cycle length with minimum network delays is derived. The NPO method formalizes the FlexRay network configuration process in two steps for simplicity. Furthermore, the method enables the efficient usage of FlexRay bus with minimum WCRT. Finally, vehicle chassis control system based on FlexRay network is designed using the proposed NPO method. In this example system, we verified the parameter-optimization algorithm, and analysis results are confirmed.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    FlexRay network parameter optimization method for automotive applications


    Beteiligte:
    Park, Inseok (Autor:in) / Sunwoo, Myoungho (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2011


    Format / Umfang :

    11 Seiten, 26 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Design framework for FlexRay network parameter optimization

    Jang, K. / Park, I. / Han, J. et al. | Online Contents | 2011


    Design framework for FlexRay network parameter optimization

    Jang, K. / Park, I. / Han, J. et al. | Springer Verlag | 2011


    +Design framework for FlexRay network parameter optimization

    Jang, K. / Park, I. / Han, J. et al. | British Library Online Contents | 2011


    Components for FlexRay automotive data communication

    Karrasch,G. / Engel,A. / Tyco Electronics AMP,Bensheim,DE | Kraftfahrwesen | 2004