Estimating method for a rotor position of a motor and estimating device for the same

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United States of America Patent

PATENT NO 9143068
APP PUB NO 20150042249A1
SERIAL NO

14160534

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An estimating method for a rotor position of a motor and an estimating device for the same are disclosed herein. The estimating method includes injecting a first high frequency signal to the motor at a first estimating angle, generating a first sensing signal of the motor in a period when the first high frequency signal is injected to the motor, injecting a second high frequency signal to the motor at a second estimating angle, generating a second sensing signal of the motor in a period when the second high frequency signal is injected to the motor, determining a quadrant of an operating angle according to the first sensing signal and the second sensing signal, and acquiring the rotor position according to the first sensing signal, the second sensing signal, and the quadrant of the operating angle.

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Patent Owner(s)

  • DELTA ELECTRONICS, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lin, Yi-Cherng Taoyuan Hsien, TW 1 3

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