Estimation of tractor slippage on the basis of traction force and tire pressures

Abstract

The main tractor parameters that defy suitability of tractors to perform traction work is traction power and slippage of drive wheels . When choosing tractors and agriculture implements it is needed to foresee the formed implements traction and economical parameters. One of the most important parameters in assessing the suitability of a tractor unit is the tractors driven wheels slippage. To increase driving wheels grip with soil and to their decrease slippage are different methods being used: ballast weights, use of twin wheels and changeable air pressure in the tires. However current mathematical models do not consider the change of air pressure in tires. A empirical formula was created, which takes into calculations the driven wheels wheel-slide having different air pressure in the tires.