Title:
CHARGING RATE ESTIMATION APPARATUS AND CHARGING RATE ESTIMATION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/159843
Kind Code:
A1
Abstract:
Provided is a charging rate estimation apparatus that is capable of improving the accuracy of a charging rate estimation. A charging rate estimation apparatus (1) estimates the charging rate of a battery (4) by using an observer based on a model of the battery (4). The model is configured on the basis of hysteresis characteristics. An observer gain that is a parameter of the observer is set so as to reduce the estimation error of the charging rate corresponding to a modeling error of a parameter included in the model, and is variable depending on the magnitude of a current flowing through the battery (4) and/or the terminal voltage of the battery (4).
Inventors:
OSAMURA KENSUKE (JP)
ADACHI SHUICHI (JP)
HATTAHA KENICHI (JP)
KAWAGUCHI TAKAHIRO (JP)
INOUE MASAKI (JP)
ADACHI SHUICHI (JP)
HATTAHA KENICHI (JP)
KAWAGUCHI TAKAHIRO (JP)
INOUE MASAKI (JP)
Application Number:
PCT/JP2018/008159
Publication Date:
September 07, 2018
Filing Date:
March 02, 2018
Export Citation:
Assignee:
CALSONIC KANSEI CORP (JP)
UNIV KEIO (JP)
UNIV KEIO (JP)
International Classes:
G01R31/36; H01M10/48; H02J7/00
Domestic Patent References:
| WO2017026451A1 | 2017-02-16 |
Foreign References:
| JP2011033453A | 2011-02-17 | |||
| JP2013190274A | 2013-09-26 | |||
| JP2018072265A | 2018-05-10 |
Other References:
HATTAHA, KENICHI ET AL.: "Robust Observer Design for State-Of-Charge Estimation of Rechargeable Battery", PROCEEDINGS OF THE JAPAN JOINT AUTOMATIC CONTROL CONFERENCE, 10 November 2016 (2016-11-10) - 12 November 2016 (2016-11-12), pages 554 - 559, XP055543761, Retrieved from the Internet
FENG, XUYUN ET AL.: "A battery model including hysteresis for State-of-Charge estimation in Ni-MH battery", 2008 IEEE VEHICLE POWER AND PROPULSION CONFERENCE, 3 September 2008 (2008-09-03) - 5 September 2008 (2008-09-05), XP031363129, Retrieved from the Internet
WANG, DU ET AL.: "Dynamic Function and Control for Polytopic System. 1st Report. Polytopic Observer Design by LMI Formulation", TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS, PART C, vol. 67, no. 663, 26 February 2008 (2008-02-26), pages 3484 - 3490, XP055543775, Retrieved from the Internet
HATTAHA, KENICHI ET AL.: "Robust Gain-scheduled Observer Design for State-of-charge Estimation of Rechargeable Battery with Hysteresis Characteristics", TRANSACTIONS OF THE SOCIETY OF INSTRUMENT AND CONTROL ENGINEERS, vol. 53, no. 11, 17 November 2017 (2017-11-17), pages 574 - 582, XP055543783, Retrieved from the Internet
FENG, XUYUN ET AL.: "A battery model including hysteresis for State-of-Charge estimation in Ni-MH battery", 2008 IEEE VEHICLE POWER AND PROPULSION CONFERENCE, 3 September 2008 (2008-09-03) - 5 September 2008 (2008-09-05), XP031363129, Retrieved from the Internet
WANG, DU ET AL.: "Dynamic Function and Control for Polytopic System. 1st Report. Polytopic Observer Design by LMI Formulation", TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS, PART C, vol. 67, no. 663, 26 February 2008 (2008-02-26), pages 3484 - 3490, XP055543775, Retrieved from the Internet
HATTAHA, KENICHI ET AL.: "Robust Gain-scheduled Observer Design for State-of-charge Estimation of Rechargeable Battery with Hysteresis Characteristics", TRANSACTIONS OF THE SOCIETY OF INSTRUMENT AND CONTROL ENGINEERS, vol. 53, no. 11, 17 November 2017 (2017-11-17), pages 574 - 582, XP055543783, Retrieved from the Internet
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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