Method for monitoring a rotational angle sensor on an electrical machine
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United States of America Patent
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Jul 30, 2002
Grant Date -
N/A
app pub date -
Jun 14, 2000
filing date -
Jun 18, 1999
priority date (Note) -
Expired
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Abstract
A method for monitoring a rotational angle sensor on an electrical machine. It is desired to provide a method that enables fault detection at both high speeds and low speeds of the rotor. The electrical power of the machine is measured and a power value is estimated using the output signal of the rotational angle sensor, a residual being formed from the measured power and the estimated power and the time curve of the residual being monitored.
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