Method of determining the state of charge of a battery of an electronic appliance

    公开(公告)号:US10073144B2

    公开(公告)日:2018-09-11

    申请号:US14494373

    申请日:2014-09-23

    CPC classification number: G01R31/3842 G01R31/3648 G01R31/367

    Abstract: A state of charge of a battery is estimated in several iterations, each iteration including: acquiring a measurement of intensity of current supplied by the battery, acquiring a measurement of voltage supplied by the battery, estimating a first state of charge of the battery based on a first estimated state of charge obtained upon a previous iteration and on the current intensity measurement, estimating a value of intensity of current supplied by the battery based on the voltage measurement and on a state of charge of the battery obtained upon the previous iteration, and calculating a corrected state of charge by adding to the first estimated state of charge a corrective term obtained by the product of a first correction gain multiplied by a factor representative of a difference between the estimated and measured current intensities.

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