DefinePK

Abstract

As an object of research we take the all-terrain vehicle on low pressure tires with a diesel engine. The purpose of the work is to determine the dependence of the vehicle's fuel consumption from basic design parameters of the engine, transmission, wheel and parameters of the snow. The paper describes a wheel-snow interaction model, describing the distribution of normal pressures, having the cosine law throughout the area of the tire contact, as well as records of changes in physical and mechanical properties of the snow during its deformation and destruction by the front wheels and repeated deformation by the rear wheels. We considered the structure of the resistance forces when moving on snow and determined the equity values of the main components. The most rational design parameters of the vehicle were obtained using methods of multivariate analysis. The paper shows the measuring equipment used forfield tests, including determining of the vehicle position and speed and the fuel consumption measuring. The paper provides the results of comparison between theoretical and experimental data. It has conclusions and recommendations how to reduce fuel consumption when driving on snow.