Structural - functional model of work of electronic system of course stability (ESP)

Abstract

A significant number of accidents are associated with the loss of vehicle control and, consequently, the deviation of the vehicle from the driver's direction of travel. The majority of accidents due to loss of control occur because under the limiting conditions the vehicle behaves differently from normal behavior and the driver cannot take the necessary corrective actions. An Electronic Stability Program (ESP) has been developed to ensure that the vehicle's behavior under extreme conditions is not very different from normal behavior. The system allows to effectively determine the moment of onset of lateral skidding of the vehicle and to form a stabilizing moment.
Existing programs for modeling the behavior of vehicles on the road often have limited functionality in terms of managing the behavior of the vehicle. In the proposed work, the authors have developed a simulation model of the behavior of the vehicle in the skids using the stability system (ESP).
A dynamic simulation of the operation of the brake system circuit has been created. It allows to get acquainted with the work of the circuit in the dynamics, This greatly improves the understanding of the braking process. The ESP and ABC interactive schemes have been developed. The information output area of the model visualizes the car passing the test track, gets an indication of the speed of the car, steering wheel and an indication of ESP intervention. In this way, a computer model of the vehicle’s drift control was obtained, taking into account ESP. The model is monitoring the dynamics of ESP and traces the connections that occur when ESP and ABS. The use of this approach allows simulating different scenarios of almost unlimited complexity, depending on the formation of various situations.
Keywords: simulation model, skids, driving a vehicle, ESP, ABC, the outline of the brake system, speed, steering wheel turn.