This paper describes the development of a continuous damping control system for semi-active suspension which is based on nonlinear Hinfinite control theory instead of conventional linear control theory. A two degree of freedom system is used as the plant for the vehicle suspension model. Since the plant is bilinear, it's not easy to design the controller. The authors design the controller for the nonlinear system based on the Hamilton-Jacobi inequality by solving a linear Riccati equation. Frequency weight function is properly designed in order to reduce sprung mass resonance, rugged vibration, and unsprung mass resonance, respectively, in the proper frequency band. The authors were able to verify by simulation that nonlinear Hinfinite control theory made it possible to control vehicle vibration optimally and smoothly.
Nonlinear Hinfinite state feedback controller for semi-active controlled suspension
Nichtlineare Zustandsregelung für ein semiaktives Fahrwerk
1998
6 Seiten, 12 Bilder, 1 Tabelle, 6 Quellen
Aufsatz (Konferenz)
Englisch
Nonlinear H~ State Feedback Controller for Semi-active Controlled Suspension
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