Friction power measurements with a fired HDD engine – Method and initial results

Abstract

The reduction of mechanical losses in combustion engines contributes significantly to the goal of reducing CO2 emissions. For several years, extensive parameter studies have been performed at MAHLE on passenger car diesel and gasoline engines [1–6]. It should be assumed that the CO2 emissions of commercial vehicles will also be strictly limited by future regulations. Fuel consumption has also traditionally played a decisive role for the end customers of commercial vehicle engines because it contributes to the „total cost of ownership.“ For these reasons, an additional friction power test bench has been set up at MAHLE to take measurements on a fired heavy duty diesel (HDD) engine.