Battery state estimating apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10718817
APP PUB NO 20180156872A1
SERIAL NO

15819663

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Abstract

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A battery state estimating apparatus is provided with: an acquirer configured to obtain a plurality of complex impedances of a battery at a plurality of different temperatures; a calculator configured to calculate a slope of a straight line connecting values of the obtained plurality of complex impedances at a first predetermined frequency on a complex plane having an axis that is a real component of the complex impedance and an axis that is an imaginary component of the complex impedance, as a slope of the complex impedance; a storage configured to store in advance a relation between the slope of the complex impedance and a battery state associated with the battery; and an estimator configured to estimate the battery state on the basis of the calculated slope of the complex impedance and the stored relation.

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Patent Owner(s)

Patent OwnerAddress
TOYOTA JIDOSHA KABUSHIKI KAISHATOYOTA
WASEDA UNIVERSITY104 TOTSUKAMACHI 1-CHOME SHINJUKU-KU TOKYO 169-8050

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mukoyama, Daikichi Tokyo, JP 11 75
Oguma, Yasumasa Tokyo, JP 33 60
Osaka, Tetsuya Tokyo, JP 53 444
Tsuda, Shingo Tokyo, JP 57 761
Utsumi, Kazuaki Tokyo, JP 36 912
Yokoshima, Tokihiko Tokyo, JP 21 146

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