Refined assessment of tire rolling resistance in the starting mode

Problem. Rolling resistance is one of the most important operational characteristics a car tire. First all, fuel consumption, durability and service life tire depend on rolling resistance. Of course, higher resistance, faster more intensively will wear out. Also, braking parameters, such as deceleration and, accordingly, distance, may indirectly characteristics. In turn, influenced by properties itself, well condition road surface weather conditions. It especially to evaluate in starting period movement, because at this time behaviour unpredictable. Goal. The purpose work improve methodology for evaluating movement. Knowing how changes during it possible car. Methodology. Refined assessment carried out with help dependencies obtained previous scientific works. But order result be correct, necessary determine Namely, we are talking about radial stiffness. work, these determined both conducting experimental studies using FEM. Results. Thanks conducted research, significant results were change motion. was established that an increase internal pressure from 0.17 MPa 0.225 MPa, motion, decreases approximately 20-25%. Originality. From analysis literature, can concluded studied works, peculiarities interaction automobile tires supporting not taken into account various studies. said originality hand, investigated other its basis Practical value. highlight results, thanks which estimate sufficient accuracy. methods determining tire, presented used operation design stage.