| Presentation | 2021-10-14 Study on Improvement of Accuracy of Lithium-ion Battery Charge Rate Estimation Using Kalman filter Keiichirou Suzuki, Syuusei Ota, Takahiro Siohara, Masahiro Fukui, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, decarbonization has been promoted due to environmental concerns. Therefore, the demand for lithium-ion batteries is increasing for use in electric vehicles and electricity storage. In order to use lithium-ion batteries, it is important to understand state of charge(SOC). The Kalman filter is often used to estimate the SOC. The Kalman filter estimates the changing internal state of the battery and corrects the estimated internal state from the observed values to obtain a highly accurate estimation. But, the conventional method does not give good results when the open circuit voltage (OCV) variation is small compared to the SOC variation, such as in lithium-ion batteries using iron olivine as the positive electrode. In this study, we aim to solve these problems and improve the accuracy of SOC estimation for lithium-ion batteries. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Lithium-ion battery / SOC estimation / Kalman filter |
| Paper # | CAS2021-17,NLP2021-15 |
| Date of Issue | 2021-10-07 (CAS, NLP) |
| Conference Information | |
| Committee | CAS / NLP |
|---|---|
| Conference Date | 2021/10/14(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Hiroki Sato(Sony LSI Design) / Takuji Kosaka(Chukyo Univ.) |
| Vice Chair | Yoshinobu Maeda(Niigata Univ.) / Akio Tsuneda(Kumamoto Univ.) |
| Secretary | Yoshinobu Maeda(Sony LSI Design) / Akio Tsuneda(NIT, Toyama college) |
| Assistant | Motoi Yamaguchi(TECHNOPRO) / Yohei Nakamura(Hitachi) / Takahide Sato(Univ. of Yamanashi) / Yasutoshi Aibara(Murata Manufacturing) / Hideyuki Kato(Oita Univ.) / Yuichi Yokoi(Nagasaki Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Circuits and Systems / Technical Committee on Nonlinear Problems |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on Improvement of Accuracy of Lithium-ion Battery Charge Rate Estimation Using Kalman filter |
| Sub Title (in English) | |
| Keyword(1) | Lithium-ion battery |
| Keyword(2) | SOC estimation |
| Keyword(3) | Kalman filter |
| 1st Author's Name | Keiichirou Suzuki |
| 1st Author's Affiliation | Ritsumeikan University(Ritsumeikan Univ.) |
| 2nd Author's Name | Syuusei Ota |
| 2nd Author's Affiliation | Ritsumeikan University(Ritsumeikan Univ.) |
| 3rd Author's Name | Takahiro Siohara |
| 3rd Author's Affiliation | Ritsumeikan University(Ritsumeikan Univ.) |
| 4th Author's Name | Masahiro Fukui |
| 4th Author's Affiliation | Ritsumeikan University(Ritsumeikan Univ.) |
| Date | 2021-10-14 |
| Paper # | CAS2021-17,NLP2021-15 |
| Volume (vol) | vol.121 |
| Number (no) | CAS-196,NLP-197 |
| Page | pp.pp.1-6(CAS), pp.1-6(NLP), |
| #Pages | 6 |
| Date of Issue | 2021-10-07 (CAS, NLP) |