Title:
SECONDARY BATTERY STATE DETECTION DEVICE AND SECONDARY BATTERY STATE DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/056448
Kind Code:
A1
Abstract:
[Problem]
To detect a full charge in a secondary battery reliably even when the voltage generated by an alternator changes.
[Solution]
A secondary battery state detection device 1 for detecting the state of a secondary battery and having one or more processors (CPU 10a) and one or more memories (ROM 10b, RAM 10c) communicably connected with the one or more processors. The one or more processors execute: a detection process whereby a command group stored in the one or more memories is read, and the charging voltage is detected when an alternator for which the generated voltage can be adjusted charges the secondary battery; a calculation process whereby a charging resistance is calculated as the internal resistance of the secondary battery when the alternator charges the secondary battery; and an estimation process whereby the charging rate of the secondary battery is estimated on the basis of the charging voltage detected by the detection process and the charging resistance calculated by the calculation process.
Inventors:
IWANE NORIYASU (JP)
HIGUCHI ATSUHITO (JP)
HIGUCHI ATSUHITO (JP)
Application Number:
PCT/JP2017/034595
Publication Date:
March 29, 2018
Filing Date:
September 25, 2017
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
FURUKAWA AUTOMOTIVE SYSTEMS INC (JP)
FURUKAWA AUTOMOTIVE SYSTEMS INC (JP)
International Classes:
H02J7/00; B60R16/04; G01R31/36; H01M10/48; H02J7/14
Foreign References:
| JP2014074588A | 2014-04-24 | |||
| JPS53127618A | 1978-11-08 | |||
| JP2004015963A | 2004-01-15 | |||
| JP2016099123A | 2016-05-30 | |||
| JP5863658B2 | 2016-02-16 | |||
| JPS537113B2 | 1978-03-14 | |||
| JP2016109565A | 2016-06-20 |
Other References:
See also references of EP 3518376A4
Attorney, Agent or Firm:
EMURA, Yoshihiko (JP)
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