This article describes the development of a composite controller for an active suspension system. This consists of two controllers operating together over different frequency ranges. The first of these is required to cancel out the low-frequency dynamic loads experienced during cornering and braking in order to maintain a level vehicle platform. The second is required to isolate the car body from vibrations caused by the high-frequency road profile. Furthermore, the vibration controller is based on a fully adaptive control algorithm. This enables the suspension to auto-tune to different vehicle payloads, tyre stiffnesses and other parameter variations experienced during progressive wear, and to adapt to the varying road frequency spectrum. Simulations were performed on a quarter car (one wheel) suspension model and the results obtained demonstrated the potential benefits of composite and adaptive control in active suspension design.
Composite active suspension for automotive vehicles
Aktive Verbundaufhängung für Kraftfahrzeuge
Computing and Control Engineering Journal ; 5 , 3 ; 149-154
1994
6 Seiten, 8 Quellen
Aufsatz (Zeitschrift)
Englisch
Composite active suspension for automotive vehicles
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