Access method of an actuator and control apparatus therefor
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United States of America Patent
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Nov 30, 1993
Grant Date -
N/A
app pub date -
Jun 17, 1991
filing date -
Jun 18, 1990
priority date (Note) -
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status (Latency Note)
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Abstract
A target moving distance of an actuator is provided and a acceleration time of the actuator suitable for the target moving distance are calculated on the basis of a preset equation. Then, a starting position of the actuator is set. It is judged if the starting position is in the range where an unevenness of force of the actuator occurs. When the starting position is not in the range, the actuator is shifted to the starting position and then is accelerated for the acceleration time. On the other hand, when the starting position is in the range, a correction time to the acceleration time is obtained based on a fuzzy inference calculation and added to the acceleration time. The actuator is shifted to the starting position and accelerated for a corrected acceleration time which is obtained by the fuzzy inference calculation.
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