Description
Together with INRS (Institut National de Recherche et de Sécurité, Vandoeuvre, France)
and ULB, Micromega Dynamics has investigated the feasibility of a semi-active suspension
of the cabin of a fork lift truck as a way of reducing the effect of harmful vibrations
on the health of truck drivers.
A suspension based on MR (magneto-rheological) fluid dampers has been designed and implemented on an actual vehicle,
a control strategy has been developed, which preserves the filtering properties of
the passive suspension when the vehicle moves in straight line with a constant velocity and
suppresses the large amplitude pitch and roll motion during turns and braking.
Results
Field tests including realistic obstacles, turing, braking and slalom have demonstrated
a substantial (comfort) improvement of the cabin stability with respect to tilting, while retaining
the filtering properties of the passive suspension.
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