New Solutions for a Globalization-Oriented Diesel FIE -Strategy for Diversified Fuels

摘要

DENSO developed a new diesel engine management system "D-FRESH (Diesel-Fuel Robust Engine SHining)", which features a FIE system capable of achieving optimum combustion independently from regions, fuel quality and other conditions. In addition, as a new aftertreatment system is developed which will improve fuel and conversion efficiency. D-FRESH is a solution to contribute to the further spread of diesel-powered vehicles and machines in the world. To cope with the increasingly stringent emissions and fuel efficiency regulations in the highly regulated countries such as Europe the focus is on innovation, high performance and fuel metering accuracy while the new markets have been covered with proven technology. However, the automobile market in China, India, Brazil and other emerging countries is growing sharply and has a demand for tailored solutions. In order to further accelerate the use of diesel-powered vehicles more widely in the world, it is necessary to apply new technologies globally. Diversified fuels and the environment of various regions in the world need to be accounted for already in the concept phase of system layout. Basically there are three requirements to cope with diversified fuel quality and environments: First focus must be on robust fuel injection components and secondly those must be combined with sensors and intelligent software to a engine management system, which under all conditions, enables optimum combustion of any fuel quality. Finally a robust after treatment system is required to control tailpipe emissions within the various worldwide test cycles with high conversion rates also at cold exhaust gas temperatures.