Accurate tests and performance analysis of engines are required to minimize measurement errors and so the use of the advanced\ntest equipment is imperative. In other words, the reliable test results depend on themeasurement ofmany parameters and recording\nthe experimental data accurately which is depended on engine test unit. This study aims to design the control system of an internal\ncombustion engine test unit. In the study, the performance parameters of an available internal combustion engine have been\ntransferred to computer in real time.Adata acquisition (DAQ) card has been used to transfer the experimental data to the computer.\nAlso, a user interface has been developed for performing the necessary procedures by using LabVIEW. The dynamometer load, the\nfuel consumption, and the desired speed can easily be adjusted precisely by usingDAQcard and the user interface during the engine\ntest. Load, fuel consumption, and temperature values (the engine inlet-outlet, exhaust inlet-outlet, oil, and environment) can be\nseen on the interface and also these values can be recorded to the computer. It is expected that developed system will contribute\nboth to the education of students and to the researchers� studies and so it will eliminate a major lack.
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