Analysis and Control of Vehicle-Driver Coupled System Post Tire Blowout: A Linear Quadratic Gaussian Approach

To enhance the stability of the vehicle subjected to a tire blowout, this paper introduces a corrective active steering safety control system to stabilize the vehicle.The vehicle model is represented by a high-fidelity 14 degrees of freedom (DOF) model that is validated using MSC Adams Package.Subsequently, using the single-track bicycle control-oriented model, an active front steering control strategy in the framework of a linear quadratic regulator (LQR) controller combined with a Kalman filter is established and evaluated.To account for the possible driver reactions following the tire blowout accident, a driver model is augmented to the loop.This representation is more realistic in comparison with the open-loop-based controller design approach.The coupled vehicle-driver system is analyzed and integrated with the proposed linear quadratic gaussian (LQG) controller.The simulation results show that the proposed control system can sufficiently stabilize the system in the presence of the external disturbances associated with the tire blowout, as well as the reactions from the driver by means of minimizing the yaw rate triggered by these disturbances during both straight-line and cornering motions.