Position control apparatus and method
摘要:
A new position control apparatus is provided which can reduce deviation caused by a non-linear spring characteristic of a rolling apparatus. In a position control apparatus (5) that controls the position of a movable body (1), in a positioning apparatus (9) including a rolling apparatus (2), a deviation e(t) or d of the movable body 1 caused by the non-linear spring characteristic of the rolling apparatus (2) is subtracted from or added to a position command Xref or r of the movable body (1). The deviation d is calculated by carrying out equivalent exchange on a control circuit for a friction force of the rolling apparatus (2), which is set as a quantity of the dimension of displacement.
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