Comparison of energy efficiency of vehicles powered by different fuels
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Publication date: 2012-09-01
Combustion Engines 2012,150(3)
The comparison of operating fuel consumption in a selected certification test is the most popular method of assessing energy efficiency of vehicles. Operating conditions are defined with the use of a velocity profile, usually for only two categories: urban and extra urban driving. Problems arising from such a practice are discussed with the use of the analysis of operating fuel consumption calculated for selected traffic conditions in Gdansk and in its suburbs for vehicles with diesel and gasoline engines. The paper presents a new method of comparing energy efficiency of vehicles powered by different fuels, which allows to perform the analysis on the basis of one drive in a regular city traffic when basic parameters of the engine and the vehicle are recorded.