Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
H-Infinity control design for a full-vehicle suspension model with active anti-roll bar and electronic dampers
Submission Author:
Matheus Soares , SP
Co-Authors:
Matheus Soares, Diego Colón, Andrei Araujo Felix, Carlos Alberto Arronte Delgado
Presenter: Andrei Araujo Felix
doi://10.26678/ABCM.COBEM2023.COB2023-0499
Abstract
This paper focuses on the modeling and control of a complete vehicle suspension system featuring an active anti-roll bar and semi-active electronic dampers, aimed at enhancing vehicle stability and safety. The vehicle model accounts for disturbances such as tire vertical displacements and wheel steering and includes inputs like control torque on the active anti-roll bar and flow rate inside the semi-active damper. Robust H-Infinity controllers are designed using MATLAB/Simulink Robust Control Toolbox for the center os mass, roll and pitch angles, which ensures system performance under varying conditions. Individual controllers are also designed for the semi-active dampers. Simulations are performed for the complete nonlinear model under the Fishhook maneuver. The simulations indicate improved vehicle stability, roll and pitch reduction, and ride safety. Future work will focus on implementing a hardware-in-the-loop (HIL) system for real-time interaction between the simulated plant and the controller within an ECU.
Keywords
Vehicle Dynamics, active anti roll bar, Semi-active suspension, H-infinity controller
