Lorentz motor control system for a payload
AssigneeKoninklijke Philips Electronics N.V.
InventorsMarcel Heertjes, Michael Vervoordeldonk
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Abstract
Control arrangement for and method of controlling a plurality of Lorenz motors (1, 2) actuating a payload (4) where the payload has a center of gravity (12). Height signals (z1, z2) are received from sensors sensing heights of said payload. At least one rotation angle of the center of gravity about a horizontal axis is calculated from these height signals (z1, z2) and from this at least one rotation angle control signals (C1, C2) for the Lorenz motors (1, 2) are calculated such that a predetermined rotational stiffness for supporting the payload (4) is achieved.
Claims5
Control arrangement for controlling a plurality of Lorenz motors (1, 2) actuating a payload (4), the payload having a center of gravity (12), the control arrangement comprising a controller (8) for receiving height signals (z1, z2) from sensors sensing heights of said payload and for calculating control signals (C1, C2) for said Lorenz motors from said height signals, characterized in that said controller (8) is arranged to calculate from these height signals (z1, z2) at least one rotation angle of the center of gravity about a horizontal axis and calculate from this at least one rotation angle said control signals (C1, C2) for said Lorenz motors (1, 2) such that a predetermined rotational stiffness for supporting said payload (4) is achieved.
Method of controlling a plurality of Lorenz motors (1, 2) actuating a payload (4), the payload having a center of gravity (12), comprising receiving height signals (z1, z2) from sensors sensing heights of said payload and calculating control signals (C1, C2) for said Lorenz motors from said height signals, characterized by calculating from these height signals (z1, z2) at least one rotation angle of the center of gravity about a horizontal axis and calculating from this at least one rotation angle said control signals (C1, C2) for said Lorenz motors (1, 2) such that a predetermined rotational stiffness for supporting said payload (4) is achieved.
Dependencies are inferred from the claim text.