| 摘要 |
<p>PURPOSE: To realize tracking control with small amount of error. CONSTITUTION: The error amount Ea in the tracking control (trace A) due to a track deviation value from an area 1 in the longitudinal direction of a track is measured, and similarly, the error amounts Eb, Ec in the tracking control (traces B, C) due to the track deviation values from the area 2 and the area 3 are measured. The Ea, Eb, Ec are compared with each other, and the tracking control to be the lowest error amount is detected. Then, in the succeeding tracking control, the track deviation value from the area 1, 2 or 3 leading out the track deviation values used in the tracking control is used.</p> |
