Comprehensive testing of diesel engines currently requires not only a control system for the feeding system of the
engine, but also a system ensuring precise control of its load and providing constant measurement conditions.
Additionally, it is necessary during the tests to record a considerable number of operating parameters of both the
engine and the loading system. The currently available stands for diesel engine tests, the so-called “engine test beds”,
are standardly-equipped with special systems controlled using computer applications to ensure the maintenance of the
assumed engine operation parameters. For compression-ignition engines, this most often takes place by control of the
accelerator pedal position. In this solution, the engine is controlled by the engine controller, which controls the fuel
charge based on the measurement of the rotational speed and the accelerator pedal position depending on the
assumed control algorithm. The shortcoming of this solution is no possibility of controlling selected fuel feeding
parameters, such as fuel pressure or the injection advance angle. This paper presents preliminary tests on an
integrated control system for both engine load and the parameters of fuel fed to a compression-ignition engine. The
developed control system enables engine test bed control, which, depending on the measurement variant, ensures the
maintenance of a constant rotational speed or a constant engine load as well as control of the Common Rail system
actuators.
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