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FlexRay Static Segment Scheduling

  • Martin Lukasiewycz
  • Michael Glaß
  • Jürgen Teich
  • Paul Milbredt
Chapter

Abstract

The FlexRay protocol was introduced by an international consortium including several car manufacturers to cope with growing real-time requirements of advanced driver assistance functions and safety functions in the automotive domain. The FlexRay protocol offers a static and dynamic segment with a high data rate of 10 Mbit/s. While the event-triggered dynamic segment is used mainly for diagnosis, maintenance, and calibration data, the time-triggered static segment might be used for critical data with strict real-time requirements. In addition to standard linear bus and star topologies, the FlexRay bus allows hybrid topologies including a dual channel mode to increase the reliability. However, in contrast to the prevailing CAN bus [4] in the automotive domain, the configuration of the FlexRay bus is significantly more complex: It requires a large set of parameters and a predefined schedule. This chapter introduces a scheduling concept for the static segment of the FlexRay based on the transformation to a two-dimensional bin packing problem.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Martin Lukasiewycz
    • 1
  • Michael Glaß
    • 2
  • Jürgen Teich
    • 2
  • Paul Milbredt
    • 3
  1. 1.TU MunichMunichGermany
  2. 2.University of Erlangen-NurembergErlangen-NurembergGermany
  3. 3.AUDI AGIngolstadtGermany

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