Conference article

Standardized Integration of Real-Time and Non-Real-Time Systems: The Distributed Co-Simulation Protocol

Martin Krammer
VIRTUAL VEHICLE Research Center, Austria

Klaus Schuch
AVL List GmbH, Austria

Christian Kater
Leibniz Universität Hannover, Germany

Khaled Alekeish
ESI-ITI GmbH, Germany

Torsten Blochwitz
ESI-ITI GmbH, Germany

Stefan Materne
TWT GmbH, Germany

Andreas Soppa
Volkswagen AG, Germany

Martin Benedikt
VIRTUAL VEHICLE Research Center, Austria

Download article

Published in: Proceedings of the 13th International Modelica Conference, Regensburg, Germany, March 4–6, 2019

Linköping Electronic Conference Proceedings 157:9, p. 10

Show more +

Published: 2019-02-01

ISBN: 978-91-7685-122-7

ISSN: 1650-3686 (print), 1650-3740 (online)


Co-simulation techniques have evolved significantly over the last 10 years. System simulation and hardware-in-the-loop testing are used to develop complex products in many industrial sectors. The Functional Mock-Up Interface (FMI) represents a standardized solution for integration of simulation models, tools and solvers. In practice the integration and coupling of heterogeneous systems still require enormous efforts. Until now no standardized interface or protocol specification is available, which allows the interaction of real-time and non-real-time systems of different vendors. This paper presents selected technical aspects of the novel Distributed Co-simulation Protocol (DCP) and highlights primary application possibilities. The DCP consists of a data model, a finite state machine, and a communication protocol including a set of protocol data units. It supports a master-slave architecture for simulation setup and control. The DCP was developed in context of the ACOSAR project and was subsequently adopted by Modelica Association as a Modelica Association Project (MAP). It may be used in numerous industrial and scientific applications. The standardization of the DCP allows for a modular and interoperable development between system providers and integrators. In the end, this will lead to more efficient product development and testing.


DCP, co-simulation, real-time, integration, standard


No references available

Citations in Crossref