Volvo's new 2.0-L four-cylinder E-DRIVE engine family spans diesels and gasoline applications. The new diesels feature the first European use of Denso's new closed-loop i-ART injection system.
The D4 with 181 horsepower and manual gearbox is the first diesel car with this level of power output in the premium D-
segment with CO2 emissions under 100 g/km.
The Volvo S60 T6 FWD with 306 horsepower and the new 8- speed automatic is the first car in the segment that delivers over two horsepower per gram of CO 2 from a combustion engine only. The car accelerates from 0-62 mph in 5.9 seconds.
The initials stand for Intelligent Accuracy Refinement Technology. Developed by Denso and first shown at the 2011 IAA, the technology features a fuel-pressure sensor and a microcomputer, which monitors injection pressure based on various input data, integrated into the top of each fuel injector. The closed-loop system precisely manages injections of fuel to match specific drive cycle conditions. It replaces the single pressure sensor typically positioned in the fuel rail.
The new Volvo diesel’s common-rail system operates at a very high 2500 bar (36,259 psi). It was developed to complement the i-ART and bi-turbo boosting to deliver required improvements in emissions and performance. The
system will first be used on the diesel-powered 2014 S60, V60, and XC60 FWD cars.
The diesels have an intelligent heat management system incorporating “smart valves” to help speed warm-up in low- temperature ambient conditions.
The E-DRIVE power units were designed and developed at Volvo’s Gothenburg Powertrain Center and are built at its
Skövde engine facility, which produced 412,343 units in 2012.
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