Seminar Details
2009-05-12 (14.00) : "Influence of tire damping on the ride performance potential of quarter-car active suspensions"
At Euler building
Organized by Mathematical Engineering
Speaker :
Semiha TURKAY (Institute of Automatic Control, Technical University of Munich
)
Abstract :
In this study, constraints on the transfer functions from the road disturbance to the
vertical acceleration, the suspension travel, and the tire deflection are derived for a quarter-car
active suspension systems using the vertical acceleration and/or the suspension travel
measurements for feedback. The influence of tire damping on the design of an active
suspension system is illustrated by a mixture of the LQG methodology and the interpolation
approach. Besides, H2 and mixed H2/H? syntheses of the quarter-car model excited by random
road disturbances are studied. It is demonstrated that the influence of tire damping on the
closed-loop performance of the active suspension system can be significant. Finally, the result
is extended to suspension models with polytopic tire damping uncertainties