A DISCRETE-TIME ROBUST STATE DERIVATIVE FEEDBACK CONTROLLER FOR AN ACTIVE SUSPENSION SYSTEM

  • FERNANDA QUELHO ROSSI Divisão de Engenharia Eletrônica, ITA - Instituto Tecnológico de Aeronáutica São José dos Campos,
  • DIOGO RAMALHO DE OLIVEIRA UNESP - Univ Estadual Paulista, Faculdade de Engenharia de Ilha Solteira;
  • ROBERTO KAWAKAMI HARROP GALVÃO ITA - Instituto Tecnológico de Aeronáutica
  • MARCELO CARVALHO MINHOTO TEIXEIRA UNESP - Univ Estadual Paulista, Faculdade de Engenharia de Ilha Solteira
  • EDVALDO ASSUNÇÃO UNESP - Univ Estadual Paulista, Faculdade de Engenharia de Ilha Solteira
Keywords: Alimentação da derivada dos estados, Controle a tempo discreto, Incerteza politópica, Sistema de suspensão ativa

Abstract

This work presents the design and the experimental implementation of a robust state derivative
feedback (SDF) controller in an active suspension system manufactured by Quanserr (Quanser, 2009a). For this
purpose, a discrete-time SDF controller is designed in the presence of parametric uncertainties by using a state
derivative model within a regional pole placement approach. In the implementations, only the measurements
from accelerometers are employed, a typical motivation for the use of SDF. The dynamic behavior of the active
suspension system is tested for dierent values of the uncertain parameter within its range considered in the
controller design.

Published
2020-09-12
Section
Articles