Title:
BATTERY PACK AND POWER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/131651
Kind Code:
A1
Abstract:
A battery pack (1) of the present embodiment is provided with a secondary battery (10), a charge state calculation unit (13), an integrated current amount calculation unit (14), a differential charge state calculation unit (15), a full charge capacity calculation unit (16), and a charging and discharging control unit (20). The differential charge state calculation unit (15) calculates a differential state of charge (ΔSOC) between a first charge state (SOC1) at a first detection timing and a second charge state (SOC2) at a second detection timing. The integrated current amount calculation unit (14) calculates an integrated amount (∫Idt) of a current flowing to the secondary battery (10) in a target period from the first detection timing to the second detection timing. The full charging capacity calculation unit (16) calculates the full charge capacity of the secondary battery (10) on the basis of the differential charge state (ΔSOC) and the integrated current amount (∫Idt). The charging and discharging control unit (20) is configured to limit either charging or discharging of the secondary battery (10) in the target period.
Inventors:
TACHIBANA YUKI (JP)
UTSUNOMIYA YAMATO (JP)
SADA TAKESHI (JP)
UTSUNOMIYA YAMATO (JP)
SADA TAKESHI (JP)
Application Number:
PCT/JP2018/000496
Publication Date:
July 19, 2018
Filing Date:
January 11, 2018
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G01R31/36; H01M10/44; H01M10/48; H01M50/202; H02J7/00
Domestic Patent References:
| WO2014155434A1 | 2014-10-02 | |||
| WO2013157050A1 | 2013-10-24 | |||
| WO2010026868A1 | 2010-03-11 | |||
| WO2013141100A1 | 2013-09-26 | |||
| WO2016038873A1 | 2016-03-17 |
Foreign References:
| JP2015170138A | 2015-09-28 | |||
| US20110279094A1 | 2011-11-17 |
Attorney, Agent or Firm:
AICHI, TAKAHASHI, IWAKURA & ASSOCIATES (JP)
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