Authors: Jan Szczepaniak
The paper presents a concept of mathematical model, which may be used for analyzing the behavior of tractor ? agricultural machine combinations at the preliminary design stages. The model is based on 2D so called bicycle models (two-wheeled) that are often referred to in the literature, but it is significantly modified because third axle was added. The model has been applied to a tractor ? potato planter combination. The measurements of behavior tractor - potato planter combination during traffic were conducted to model parameters identification. Obtained results permit evaluate influence value of combination tractor ? potato planter parameters on its traffic stability.