Investigation of Tyre Ride Comfort Performance on Electric Vehicle

Abstract

Over the last few years, the Electric Vehicle Market (EV’s) has experienced significant growth. One of the major challenges faced by electric vehicles is its tyre performance requirements. Reduced range, Increased vehicle weight, higher motor torque and absence of engine needs lower rolling resistance, higher load capacity, low tread wear & low noise tyre, respectively. All these demands will lower the ride comfort performance of the Electric Vehicle. The objective of this work is to investigate the impact of tyre parameters on the ride comfort performance of EV’s. Tyre construction, tread compound and tyre pressure have a significant impact on the ride comfort performance. Tests like drive point mobility, modal analysis and cleat test are conducted experimentally as well as using virtual tools, the ride comfort performance of tyres is evaluated. The results show that tyre construction and inflation pressure have major influence on the ride comfort performance of EV tyres. Finally, the influence of tyre parameters on its ride comfort requirements without major compromise on other performances are identified.