Title:
蓄電池の充放電曲線推定装置および充放電曲線推定方法
Document Type and Number:
Japanese Patent JP7106362
Kind Code:
B2
Abstract:
A charge-discharge estimation device derives and sets as a prior estimation function an approximate curve of an initial open-end voltage function and initial impedance function to be corrected a first time. A measurement unit measures a charge-discharge voltage and a charge-discharge current in a cycle of a predetermined time. An estimation calculation processing unit obtains an estimated error between a measured voltage and a prior estimation voltage obtained from the prior estimation function, and obtains a posterior estimation value by applying, to the calculated estimated error and a current value, a correction expression using a Gaussian function having a predetermined learning rate LR and correction width a as terms, corrects the prior estimation function based on the calculated posterior estimation value, sets a new prior estimation function, and estimates a charge-discharge curve.
Inventors:
Rihito Arima
Naoki Oniki
Naoki Oniki
Application Number:
JP2018115000A
Publication Date:
July 26, 2022
Filing Date:
June 15, 2018
Export Citation:
Assignee:
Daiwa Seikan Co., Ltd.
International Classes:
G01R31/367; H01M10/42; H01M10/48; H02J7/00
Domestic Patent References:
| JP2017220293A | ||||
| JP201690346A | ||||
| JP2015135286A | ||||
| JP7066390B2 |
Other References:
有馬理仁,林磊,福井正博,島田幸司,“リチウムイオン蓄電池の経済性推定モデルの検討”,電子ジャーナル「エネルギー・資源学会論文誌」,2018年05月,Vol.39, No.3,pp.11-20,http://web.archive.org/web/20180516000032/http://www.jser.gr.jp/journal/journal_pdf/2018/journal201805_2.pdf
有馬理仁,林磊,福井正博,“リチウムイオン蓄電池モジュールの使用状態での劣化診断の一手法”,電子情報通信学会技術研究報告,2018年06月07日,Vol.118, No.82,pp.137-142
有馬理仁,林磊,福井正博,“リチウムイオン蓄電池モジュールの使用状態での劣化診断の一手法”,電子情報通信学会技術研究報告,2018年06月07日,Vol.118, No.82,pp.137-142
Attorney, Agent or Firm:
Masatoshi Kurata
Nobuhisa Nogawa
Naoki Kono
Tadashi Inoue
Ken Ukai
Shigeru Iino
Nobuhisa Nogawa
Naoki Kono
Tadashi Inoue
Ken Ukai
Shigeru Iino