Matthias Ussner

Dipl.-Ing. Matthias Ussner has worked with energy efficiency during his career from Porsche Motorsports, biofules, energy recovery projects to holistic truck energy performance projects at Scania´s predevelopment department.

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Presentation

Effect of ambient temperature on truck tyre rolling resistance

EU-labelling of tyres mandates to measure rolling resistance at +25°C ambient temperature. For many purposes, such as dimensioning of batteries for electric vehicles, this value is not representative enough. In this presentation, the transient rolling resistance of a representative truck tyre was measured at different ambient temperatures (-30…+25°C) in a climate wind tunnel and a considerable temperature dependency on rolling resistance was found. Key findings from this study and an outlook on the range dependency of an electric long haulage truck on ambient temperature will be given.