Friction Power Measurements with a Fired Commercial Vehicle Engine Piston Group Potentials
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The reduction of friction losses in combustion engines is of great significance for lowering CO2 emissions. Unlike passenger car engines, there are currently no statutory limits for commercial vehicle engines. It should be assumed, however, that the CO2 emissions of commercial vehicles will also be strictly limited by future regulations. For these reasons, a friction power test bench has been set up at Mahle to take measurements on a fired commercial vehicle engine.
Lower Friction Reduces Fuel Consumption
Extensive parameter studies of passenger car diesel engines [1-3] and gasoline engines [4, 5] have shown that there is significant potential in the piston group for reducing friction and therefore saving fuel. In commercial vehicle engines as well, suitable measures in the piston group can reduce friction [6, 7]. This is also reflected in fuel consumption, which plays a critical role for end customers in the commercial vehicle sector, as it is a significant part of the Total Cost of...
The authors express their thanks to Dr. Weiping Yang, Dr. Daniel Hrdina and Volker Weisse, all Mahle GmbH, for managing the project and providing support for the test runs.