A STUDY OF THE INFLUENCE OF SOME EXPLOITATION FACTORS ON THE ATV STABILITY

An original survey among ATV riders concerning the conditions in which they lost stability is conducted. The coordinates of the center of gravity of the ATV by riders with different Body Mass Indexes are determined. A simulation program on base mechanic–mathematical model to study the ATV’s motion is used. In this base the critical sideslip velocities and critical lateral overturn velocities of ATV at various riders’ Body Mass Index, curve radius and grip coefficients were calculated. The results show that riders’ Body Mass Index strongly affects critical velocities because of different coordinates of center of gravity