Aerodynamic Effects on Vehicle Moving in Stationary Air and Their Influence on Stability and Steering Control

The equation for lateral motion of a car, according to the “two degrees of freedom” mathematical model, are developed, taking into account the contribution of the aerodynamic forces applied to the car moving in stationary air. Modifications introduced by aerodynamic effects on stability and steering control are derived and discussed, also in a first-order approximation. In addition, successively numerical examples are utilized to illustrate the conclusions of the study described.