Tracing control is used in various precision processing systems for industrial products. It is important for a tracing control system to be maintained so as to achieve the accuracy of positioning of the gap between the workpiece and the machining tool during the operation. For this requirement, the control gain is implemented as a look-up table corresponding to the gap. This controller is also used to attenuate the effect of an unevenness of the workpiece which is regarded as a measurable disturbance in the output of the tracing control system. In this paper, we present a data-driven update method of table-typed controller gain in tracing control system for disturbance attenuation.
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