Abstract:
Understanding the interaction between an elastic tire and a bearing surface is
important not only for studying motion of wheeled vehicles, their controllability and running
smoothness, but also necessary for creating systems for car motion automatic control. At the
same time, the interaction forces between wheels and the bearing surface attract special
attention since they have a decisive effect on vehicle’s controllability and stability. Indeed,
all effects, including aerodynamic ones, are reflected in forces and moments arising in the
wheel/bearing surface contact area, which, in turn, determine car motion parameters.
Consequently, in creating a control system for vehicle motion, the primary task is to establish
patterns of changes in force factors depending on characteristics of the bearing surface and
parameters of the operator's control in order to develop a criterion for controlling signal
formation. The analysis of experimental and theoretical studies of wheel rolling showed that
all research results are reduced to establishing patterns of change in force factors (indirect
parameters) in the wheel/bearing surface contact patch depending on the parameters that
indirectly characterize the kinematic parameters. Meanwhile, establishing a regular pattern of
changes in force factors in the wheel/bearing surface interface is the most important task in
developing a criterion for the formation of control signals for active safety systems based on
force analysis. The paper presents a method for increasing vehicle’s traction and braking
dynamics by partially converting thermal energy of the car into reactive tractive force (air
propeller, gas turbine).
