Combination of Measurement and Simulation to Analyse Engine Friction
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In modern development processes, measurement and simulation are increasingly merging together to form a single unit. In response to this trend, the Virtual Vehicle Research Centre has developed a tool and applied for a patent that can combine friction measurements with simulation of the crankcase bearings. This new development method allows precise analysis of engine friction over the entire characteristic map.
Multitude of Individual Optimisations
The entanglement of an innovative measurement technique with an accurate simulation yields in total a powerful tool to investigate the friction power losses in engines under realistic operating conditions, as will be discussed in the following. While the total engine friction power losses and the friction of the valve train are measured experimentally, the friction power losses of the crank train journal bearings are calculated using simulation. The result is in an efficient and powerful determination of the individual engine subassemblies...
The authors would like to express their gratitude to their partners, namely KS Gleitlager and MIBA for their support in the validation of the simulation method. Parts of this work were funded by the "Comet – Competence Centers for Excellent Technologies Program" of the Austrian Federal Ministry for Transport, Innovation and Technology (bmvit), the Austrian Federal Ministry of Science, Research and Economy (bmwfw), the Austrian Research Promotion Agency (FFG), the Province of Styria and the Styrian Business Promotion Agency (SFG). Furthermore, the authors acknowledge the partial financial support of the Austrian Science Fund (FWF): P27806-N30.
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