A model for prediction of the transient rolling resistance of tyres based on inner-liner temperatures |
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Authors: | Matthias Greiner Hans-Joachim Unrau Frank Gauterin |
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Affiliation: | Institute of Vehicle System Technology, Karlsruhe Institute of Technology, Karlsruhe, Germany |
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Abstract: | Measurements of rolling resistance in thermal equilibrium of a tyre, like measurements according to ISO 28580, do not allow statements about rolling resistances under other driving conditions. Such statements, however, are necessary to determine the energy consumption in driving cycles. Especially for the proper calculation of electric-vehicle remaining ranges and the selection of the respective driving strategies, the real amount of energy consumption is required. This paper presents a model approach, which by means of only one standardised rolling resistance measurement can be parameterised and, considering the present driving speed and tyre temperature, can predict the respective current rolling resistance. |
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Keywords: | Rolling loss rolling resistance prediction tyre temperature |
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