Authors: Haytham M. El-Zomor
Addresses: Mechanical Engineering Department, Higher Technological Institute, 6th of October Branch, 3rd Region, Mail Box No. 4, 12564, Egypt
Abstract: There are many types of losses that can be considered during vehicle motion. The rolling resistance of the pneumatic tyres plays an important role in the fuel consumption and the overall energy efficiency for on-/off-road vehicles. An experimental test-rig for a single tyre was constructed and built especially for this work. Experimental investigation of radial and bias-ply tyre loading/unloading characteristic and contact area to estimate the hysteresis loss during vehicle motion has been carried out at different operating conditions. Accordingly, an empirical formula has been concluded to estimate the hysteresis loss function of tyre construction, inflation pressure and the deformed volume. The proposed hysteresis loss equation accuracy lies within an average error of 10.6%. This equation is appropriate for a real-time vehicle system by adding tyre inflation pressure sensor and vertical deflection sensor.
Keywords: tyre dynamics; rolling resistance; tyre hysteresis loss; tyre deflection; tyre deformed volume; tyre contact area.
International Journal of Heavy Vehicle Systems, 2019 Vol.26 No.2, pp.175 - 187
Received: 26 Oct 2016
Accepted: 05 Dec 2016
Published online: 11 Mar 2019 *