USING TYPE IDENTIFICATION SYSTEMS TO TEST THE MATHEMATICAL MODEL FOR THE ECONOMIC POLE OF A DIESEL ENGINE

• Published in: Annals of Faculty Engineering Hunedoara 2013-07, Vol.11 (3), p.127
• Main Authors: Dumitru, Ilie, Bogdan, Ion, Cataneanu, Mihnea, Oprica, Alexandru
• Format: Article
• Language: English
• Subjects: Diesel engines; Efficiency; Mathematical models; Optimization
• ISSN: 1584-2665; 2601-2332

Optimizing power using diesel engines in automotive power systems (example: road train assembly or tractor and machine work system) requires determining the engine speed-actual torque function for which specific fuel consumption is minimum at each constant power level which gives the premises for the design and implementation of an information system for the management and control of optimal use of engine power. Experimental research is conducted mainly for collecting data required to develop and verify algorithms resulting from mathematical modeling of indirect determination of torque, optimum curve and hence the economic pole. For this purpose, the engine tested under laboratory conditions has been subjected to experimental measurements and corresponding parameters were measured: actual torque Me and actual engine speed ne at different constant values for exhaust temperature θge. The solutions' validation requires the use of dedicated methods of which stands type identification method system. Checking the correlation coefficient between real data (measurements taken at the test track drive with the car brake) and theoretical relation established after mathematization. The main purpose of the track measurements was to verify the fidelity of mathematical modeling done by the author and data collection necessary to compare with the results obtained from stand. [PUBLICATION ABSTRACT]