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Modeling of Alternative Propulsion Concepts Applying Modular Object-Oriented Simulation Techniques

The development of alternative power trains requires powerful modeling and simulation techniques, which support concept decisions, designing of components, developing of control strategies and more. In the recent years object-oriented modeling and simulation techniques, which promise a higher flexibility compared to conventional tools, have gained increasing interest. Within the paper, architecture and components of a library for the simulation of alternative power trains are described, whereby the powerful concept of acausal formulation of equations and interfaces between components with physical meaning is described. As an example, a simulation model of a light diesel-powered railcar is presented. The potential improvement of fuel economy regarding different application settings is evaluated.