Displacement sensing method and motor control apparatus
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United States of America Patent
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-
Jun 19, 2018
Issued Date -
N/A
app pub date -
Dec 5, 2013
filing date -
Sep 14, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A displacement sensing method of the present invention includes the steps of superimposing a predetermined signal on a torque command to supply a drive torque to a motor, measuring an amplitude spectrum ratio between the drive torque in superimposing the predetermined signal on the torque command and a motor angle measured by a displacement sensor, generating correction data for evening out the amplitude spectrum ratio, and correcting the measured motor angle so that the motor angle measured by the displacement sensor is equal to an actual motor angle using the correction data.
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International Classification(s)
- 2013 Application Filing Year
- G05B Class
- 2321 Applications Filed
- 1894 Patents Issued To-Date
- 81.61 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- G05B Class
- 0 % this patent is cited more than
- 7 Age
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