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The purpose of an engine controller is to fulfil emission, consumption and driveability requirements and to be able to fully utilize the potential of a modern engine with its high degree of freedom, the complexity of the controller becomes very high. The long calibration time, the complex architecture, the limited I/O and intellectual property make production controllers difficult to use in a research environment, where there is often a need to change the functionality in order to test new concepts. This is why many universities develop their own engine controller, which in many cases is only used for one project, why a lot of valuable research time is lost in developing the basic controller. This paper describes an open source engine controller for rapid prototyping to be used freely at the universities in Sweden for their research and education purposes.

Engine simulation has traditionally been an instrument for the early phase of engine design in order to choose the optimal compromise between the different requirements, such as cost, packaging, performance and fuel consumption. However, the problem has somewhat changed from an engine design to an engine calibration and function development task, as new technologies increase the degree of freedom to such an extent that it is almost impossible to find the optimal setting in the test bench. The purpose of the model is to be used as a Model-In-the-Loop model for offline simulation and debugging during the algorithm development phase of the engine controller. It can also be used during the rapid prototyping calibration phase as the amount of measurements needed for the model is relatively small. From the measurements, simulation can rapidly be executed to find a calibration setting which is in the correct ballpark.