A system for mitigating torsional vibrations about a Z-axis of a lift truck, the system comprising: a tractor unit; a mast mounted relative to the tractor unit, the mast including a fixed base and a vertically extendable mast section; a vertically movable platform attached to the extendable mast section, the platform being vertically movable with the extendable mast section between an upper position and a lower position; a first sensor at or near a top of the mast, the first sensor to measure yaw about the Z-axis at or near the top of the mast; a corrective yaw input mechanism, the corrective yaw input mechanism to induce a counter moment at or near the fixed base when the measured yaw about the Z-axis at or near the top of the mast exceeds a predetermined value, the induced counter moment to damp the measured yaw about the Z-axis at or near the top of the mast. 132-, 34--, 38, 30 44-- ,,46 -,-62 50 Z 3 -j 118 110
Vibration Control Systems and Methods for Industrial Lift Trucks
14.09.2017
Patent
Elektronische Ressource
Englisch
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS |
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