A novel adaptive fuzzy logic controller (AFC) based on an interval type-2 fuzzy controller is proposed for vehicle non-linear active suspension systems. The adaptive strategy elicited from the least-mean-squares optimal algorithm is adopted to self-tune lower bounds and upper bounds of interval type-2 fuzzy membership functions (IMF2S). The IMF2S are utilized in the AFC design to deal with not only non-linearity and uncertainty caused by irregular road inputs and immeasurable disturbance, but also the potential uncertainty of experts knowledge and experience. A case study based on a quarter-vehicle active suspension model has demonstrated that the proposed type-2 controller significantly outperforms conventional fuzzy controllers of an active suspension and a passive suspension.
An interval type-2 fuzzy logic controller for quarter-vehicle active suspensions
Interval-Type 2-Fuzzy-Regler für aktive Viertelfahrzeug-Federungen
2008
13 Seiten, 32 Quellen
Article (Journal)
English
Adaptivregelung , adaptives System , Radaufhängung , Fuzzy-Regelung , Fuzzy-Regler , Optimierungsalgorithmus , Methode der kleinsten mittleren Quadrate , Anwendung im Fahrzeugbau , nichtlineares dynamisches System , theoretisches Modell , Fahrzeugfederung , Konstruktionsmethodik , technische Entwicklung
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