Engine Power Correction

Introduction

The atmospheric conditions are known to affect the performance of internal combustion engines. A different engine performance from that specified by the manufacturer can be observed when the engine is working under an atmospheric condition different from that at which the engine data was collected by the manufacturer. The influence of the atmospheric condition on the performance of an engine can especially be observed through variations on the vehicle acceleration time and on fuel consumption. Correction factors are available to predict the power developed by the engine under distinct ambient conditions from the engine power curve obtained in laboratory tests at a standard condition. However, the many correction factors proposed often lead to different results for a same atmospheric condition considered. These non uniform results from correction factors motivates this investigation on which one better predicts the engine performance on the road. Many works which are dedicated to verify the influence of the