Study on Tire Rolling Resistance Related to Tire Alignment

The improvement of vehicle fuel consumption is becoming important recently. Tire rolling resistance contribution to the fuel consumption is known to exceed 10%. However, the mechanism of rolling resistance related to tire alignment is not known clearly. This report discusses the rolling resistance generation mechanism by using FE tire model for chassis design. タイヤの走行抵抗の燃費への寄与は１割を超えることが知られているが、走行状態によるタイヤ姿勢変化と走行抵抗の関係は明確になっていない。本報ではタイヤ姿勢と燃費向上の関係を明確にするため、FEMタイヤモデルを用いてタイヤ単体での走行抵抗発生メカニズムについて考察する。