Tyre inflation pressure effects on the transient handling performance of a multipurpose protected vehicle Online publication date: Fri, 13-May-2022
by Manuel Tentarelli; Alessio Pizzi
International Journal of Vehicle Systems Modelling and Testing (IJVSMT), Vol. 15, No. 4, 2021
Abstract: One of the main requirements for military vehicles is the capability to move over all types of terrain. For this purpose, many military vehicles allow the driver to change tyre inflation pressure to improve the mobility over soft soils. Although various studies have investigated the effect of the inflation pressure on the interaction between tyre and soil, to date there has not been an adequate analysis of the effects of the lateral vehicle dynamics on the road. A multipurpose protected vehicle (MPV) was instrumented and tested with a campaign of sweep steer tests at different tyre inflation pressures; experimental data were analysed in order to evaluate modifications on lateral handling performance. Although our tests did not show any compromise in directional stability, MPV dynamics on the road were found to be globally degraded by reducing tyre inflation pressure.
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