Determination method and apparatus for BLDC counter-electromotive force zero crossing point threshold, and storage medium

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United States of America Patent

PATENT NO 11716037
SERIAL NO

17418243

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A determination method and apparatus for a brushless direct current counter-electromotive force zero crossing point threshold and a storage medium, the method includes detecting counter-electromotive force zero crossing point time intervals of two adjacent sectors of a brushless direct current electric motor to obtain at least two first time intervals; utilizing the obtained at least two first time intervals to determine errors of a counter-electromotive force zero crossing point; converging the determined errors of the counter-electromotive force zero crossing point to obtain a counter-electromotive force zero crossing point threshold correction increment; and utilizing the obtained counter-electromotive force zero crossing point threshold correction increment to determine a counter-electromotive force zero crossing point threshold.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yang, Lei Foshan, CN 352 1963
Zhu, Ziqiang Foshan, CN 103 1347

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