A half-vehicle model with 4-DOF was built up. In response to a nonlinear, time delay and uncertain system of automobile suspension, an improved self-adaptive fuzzy PID controller of the active suspension was designed. Taking SANTANA2000s suspension parameter for simulation and taking a step function as the input of simulation road, time-domain simulation in Matlab was finished. The simulation result indicates that the ride comfort was improved obviously by using the active suspension with improved self-adaptive fuzzy PID controller. The time of response reach to steady state was shortened notably. The active suspension with improved self-adaptive fuzzy PID controller is superior to the passive suspension and the simple active suspension with fuzzy controller in improving the ride comfort and maneuverability. All of these advantages are of considerable referential values in development of vehicles active suspension controller.
Study on Ride Comfort of Automobile Active Suspension
Applied Mechanics and Materials ; 505-506 ; 356-359
2014-01-16
4 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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