International Journal of Automotive Engineering and Technologies 2146-9067 Murat CİNİVİZ 10.18245/ijaet.617966 Mechanical Engineering Makine Mühendisliği Experimental study on effects of vehicle speed variations on effective rolling radius according to the changes in tire pressure https://orcid.org/0000-0002-3548-0484 Köylü Hakan KOCAELİ ÜNİVERSİTESİ, TEKNOLOJİ FAKÜLTESİ, OTOMOTİV MÜHENDİSLİĞİ BÖLÜMÜ 09 29 2020 9 3 130 137 09 10 2019 06 07 2020 Copyright © 2012, International Journal of Automotive Engineering and Technologies 2012 International Journal of Automotive Engineering and Technologies

This study aims to experimentally examine the effects of vehicle speed changes on the vertical resonance frequency of effective rolling radius variations for applying to TPMS (Tire Pressure Monitoring System). For this, the road tests have been conducted at constant vehicle speeds 30, 60, 90km/h for tire pressures 15, 20, 25, 30, 35psi. In these tests, the effective rolling radius changes have been measured. Test results show that the vehicle speed changes cause the resonance frequency to shift at same tire pressure. Therefore, this study shows that the changes in vertical resonance frequency resulting from vehicle speed changes may cause wrong tire pressure information to be taken by TPMS.

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