Validation of Truck Platoon Slipstream Effects

Bernhard Lechner*, Almir Cajic, Bernhard Fischbacher, Alexander Kospach, Alexander Mladek, Peter Sammer, Christoph Zitz, Michael Zotz, Christoph Irrenfried

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review


Due to slipstream effects, platooning leads to a significant decrease of the fuel consumption of the heavy-duty vehicles (HDV). Measurements with a platoon consisting of three vehicles were performed at the Zalazone proving ground. The goal of these measurements was to get the static pressure at the front and the rear of the second vehicle to calibrate computational fluid dynamics simulation and to measure the fuel consumption directly. Measurements were done at a vehicle speed of 80 km/h and varying inter-vehicle distances. Platooning leads to a reduction of the pressure coefficients in the centre of the HDV front and an increase of the pressure coefficient at the top and the rear of the HDV. Furthermore, a reduction of the fuel consumption of the leading vehicle of 7.9% at an inter-vehicle distance of 6 m and 3.7% at a distance of 22 m was determined. A comparison to CFD simulation showed a similar fuel reduction for an inter-vehicle distance of 6 m and 22 m. CFD simulation showed an increase of fuel consumption at an inter-vehicle distance of 15 m. This increase was experimentally not validated. Also, results for the following vehicle are presented.
Original languageEnglish
Title of host publicationEnergy-Efficient and Semi-automated Truck Platooning
EditorsAlexander Schirrer, Alexander L. Gratzer, Sebastian Thormann, Stefan Jakubek, Matthias Neubauer, Wolfgang Schildorfer
Place of PublicationCham
ISBN (Electronic)978-3-030-88682-0
ISBN (Print)978-3-030-88681-3
Publication statusPublished - 26 Apr 2022

Publication series

NameLecture Notes in Intelligent Transportation and Infrastructure

Fields of Expertise

  • Mobility & Production


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