Engine Management System for Direct Injection Gasoline Engine

Abstract

The need to protect the earth’s environment has created a strong trend to improve fuel economy in automobiles. A promising technique to increase engine output while improving fuel economy in gasoline engines is the use of direct injection technology. Due to lean combustion, direct injection engines have less pumping and heat losses. This increases the engine’s efficiency and thus improves the fuel economy. The use of direct injection technology also makes it possible to increase the engine’s specific power output. This can be achieved, because the low charge temperature improves both volumetric and anti-knocking performance.