Dugelnyj V. Improvement of parameters of course stability of the car in view of power heterogeneity of its trunks

In work research of influence of power heterogeneity of pneumatic trunks on parameters of course stability of the car is executed. The mathematical model of movement of the car is developed in view of power heterogeneity of pneumatic trunks. The decision of the differential equations of movement is executed. Critical speed of movement of the automobile is determined in view of the nonlinear characteristic of dependence of lateral force from a corner of withdrawal, power heterogeneity of the trunk on its circle for bicycle model and the model which are taking into account a track of the automobile. It is shown, that at factor of power heterogeneity of wheels of a forward axis in limits ±0,1 the area of stability extends - critical speed of rectilinear movement and on 6,7 - 7,9 % of circular stationary modes increases on 4,1 - 6,35 %. Conditions of dangerous - safe loss of stability of rectilinear movement of model of the automobile with managing wheel module for which interaction of wheels with a basicsurface in a lateral direction is described by a nonlinear hypothesis of withdrawal are established. Optimum values torsional rigidity of the managing wheel module for automobiles of a small class are established. It is shown, that at safe loss of stability of rectilinear movement the automobile with superfluous controllability passes to a steady circular mode of rather big radius; infringement of a condition of safe loss of stability (when the factor torsional rigidity of the managing wheel module falls outside the limits optimum values) results in unlimited growth of lateral making speed of the center of weights and helicoids movement of the automobile in a plane of road.