Abstract
The paper presents the simulation analysis determining
the effect of tyre energy efficiency class on fuel consumption
of a passenger car. Calculations were made assuming the wheel
movement on a dry and smooth asphalt road surface. The tests
based on a simulation model were performed on 61 types of tyres,
being characterised by different sizes and energy efficiency classes.
Different values of rolling resistance coefficient were adopted
(in accordance with energy efficiency classes), also, the values
of basic and additional resistance to motion were determined.
Based on them, engine speeds and load torque corresponding
to respective specific fuel consumption were estimated. This
parameter allowed the relationship between average mileage fuel
consumption and tyre energy efficiency class to be determined
on the basis of the NEDC test.
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