Detection of offset errors in phase current measurement for motor control system
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United States of America Patent
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Jan 23, 2018
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app pub date -
Feb 16, 2016
filing date -
Feb 16, 2016
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Abstract
A system for detecting offset error in a power steering system comprises a programmable high pass filter module configured to filter a final voltage command and generate a filtered final voltage command that includes the sinusoidal component, a gain and phase compensation module configured to perform a gain compensation and a phase compensation on the filtered final voltage command to generate a compensated final voltage command; and an error detection module configured to determine an offset of the compensated final voltage command in a stator reference frame.
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