Optimal Trigger Sequence for Non-Iterative Co-Simulation with Different Coupling Step Sizes

Franz Holzinger, Martin Benedikt, Daniel Watzenig

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review


The definition of a suitable trigger sequence is challenging during the configuration of non-iterative co-simulation. Therefore, a trigger sequence approach is presented for interacting subsystem in a sequential co-simulation framework. For this purpose, the dependencies between the subsystems are used to describe a co-simulation graph. According to the co-simulation graph an optimization approach for the optimal trigger sequence is derived. Furthermore, the subsystem execution behaviour is discussed with respect to different coupling step sizes. Therefore, the impact of the underlying scheduling algorithm is analysed. A transformation of the co-simulation graph is introduced in order to consider the scheduling behaviour. This enables the usage of solving algorithms designed for equal coupling time steps. In addition to that, an extension of the co-simulation graph is done by weighting of the coupling signals. The weighting of coupling signals allows the prioritization of the subsystems. This affects the trigger sequence and consequently the simulation results. In this context, different weighting approaches are discussed and compared by an example.

Original languageEnglish
Title of host publicationSimulation and Modeling Methodologies, Technologies and Applications - 9th International Conference, SIMULTECH 2019, Revised Selected Papers
EditorsMohammad S. Obaidat, Tuncer Ören, Helena Szczerbicka
Number of pages21
ISBN (Print)9783030558666
Publication statusPublished - 1 Jan 2021
Event9th International Conference on Simulation and Modeling Methodologies, Technologies and Applications: SIMULTECH 2019 - Prague, Czech Republic
Duration: 29 Jul 201931 Jul 2019

Publication series

NameAdvances in Intelligent Systems and Computing
Volume1260 AISC
ISSN (Print)2194-5357
ISSN (Electronic)2194-5365


Conference9th International Conference on Simulation and Modeling Methodologies, Technologies and Applications
Country/TerritoryCzech Republic


  • Different coupling time steps
  • Sequential co-simulation
  • Trigger sequence optimization

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science(all)

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