Development of 8х8 All-terrain Vehicle with Individual Wheel Drive

Abstract

In this article, we consider the problem of developing a rational competitive design of a multifunctional all-terrain vehicle (MATV) with 8х8 axle configuration. Empirical dependencies are proposed to calculate weight-size parameters of these vehicles, such as power and power-to-weight ratio, payload, maximum speed, average ground pressure depending on full vehicle weight. Key dependencies are provided to calculate hydrostatic transmission (HST) parameters used to determine hydraulic unit sizes and connection diagrams. Various HST control algorithms are analyzed in order to increase efficiency and reduce fuel consumption. The results show that the right HST control algorithm can increase efficiency by 10%, and reduce fuel consumption by 18%. General view of the developed MATV is provided.