Eventos Anais de eventos
CONEM 2018
X Congresso Nacional de Engenharia Mecânica
Magnetorheological damper in semi-active vehicle suspension system using SDRE control for a quarter car model
Submission Author:
Maria Aline Gonçalves , PR , Brazil
Co-Authors:
Maria Aline Gonçalves, Rodrigo Tumolin Rocha, Frederic Conrad Janzen, José Manoel Balthazar, Angelo Marcelo Tusset
Presenter: Angelo Marcelo Tusset
doi://10.26678/ABCM.CONEM2018.CON18-1216
Abstract
This paper presents a quarter car model assuming a nonlinear model structure in the parameters but linear in the states, obtaining a more realistic model allowing a rigorous analysis of the efficiency and stability of the proposed control through computational simulations. This paper presents a proposal for the control of vehicle suspension system using a SDRE controller applied to the magnetorheological damper, resulting in a semi-active system. In this study the dissipative element is replaced by a magnetorheological damper whose behavior is adapted to the disturbances to which it is submitted. The efficiency of the proposed control can be evidenced through computational simulations using a quarter-car nonlinear mathematical model. The analysis of the controller's performance is performed considering the excitations caused by irregularities of the road represented by step input. Computational simulations were performed using Matlab®. The simulation results show that the proposed control improves the vehicle's dirigibility by reducing the vertical displacement of the wheel and also contributes to the passengers' comfort by reducing oscillations in the vehicle's body. In addition, simulations of parametric variations were performed in order to verify the behavior of the proposed control in face of uncertainties. Parametric studies demonstrate that the control remains stable, even when subjected to parametric variations.
Keywords
SDRE Control, magnetorheological damper, Nonlinear Vehicle Quarter-car Model
