A Toolchain for Real-Time Simulation using the OpenModelica Compiler

Nowadays, simulation is the key technology to shorten development times, while increasing the functionality of products. In this context simulation is always used in order to verify characteristics of the product under consideration. In the past simulation was mostly done offline, i.e. not synchronized to real-time. Due to the increased computing power, the relevance of real-time simulation has increased in the last years. Therefore, several simulation environments offer a toolchain for real-time simulation, e.g. the Real-Time Workshop integrated in Simulink. In this paper such a toolchain (although not yet fully automated) for the OpenModelica Compiler (OMC) is presented using a hydromechanical system as an example. Thereby, this paper describes a modular C++ Simulation-Runtime for the OMC including a numerical integration method suitable for real-time simulation as well as modeling details of the example system using Modelica.