Title:
BATTERY SYSTEM, RAILROAD VEHICLE, AND BATTERY MANAGEMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2020/209200
Kind Code:
A1
Abstract:
The purpose of the present invention is to ensure a storage battery to remain serviceable throughout a target service lifespan thereof. To accomplish this purpose, a representative battery system according to the present invention is provided with: a battery that can be used repeatedly; a battery control unit that controls the service lifespan of the battery by putting constraints on battery use conditions involved in battery life deterioration; an estimation unit that calculates an estimated length of battery service lifespan obtained by constraining battery use conditions; and a restriction unit that, on the basis of the estimated lifespan thus calculated, determines a length of deficient service lifespan by which the battery falls short of the target service lifespan, and resets the battery use conditions for the battery control unit by imposing restrictions so as to reduce the deficient service lifespan.
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Inventors:
YONEMOTO MASAHIRO (JP)
KAWAHARA YOUHEI (JP)
TAKAHASHI CHIAKI (JP)
ISHIKAWA KATSUMI (JP)
KAWAHARA YOUHEI (JP)
TAKAHASHI CHIAKI (JP)
ISHIKAWA KATSUMI (JP)
Application Number:
PCT/JP2020/015341
Publication Date:
October 15, 2020
Filing Date:
April 03, 2020
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H02J7/00; B60L50/60; B60L58/16; B60L58/21; G01R31/392
Domestic Patent References:
| WO2012128285A1 | 2012-09-27 | |||
| WO2011118294A1 | 2011-09-29 |
Foreign References:
| JP2007259612A | 2007-10-04 | |||
| JP2014079066A | 2014-05-01 | |||
| JP2014078358A | 2014-05-01 | |||
| DE102009023340A1 | 2011-02-03 | |||
| JP2016163532A | 2016-09-05 | |||
| JP2016163532A | 2016-09-05 |
Other References:
See also references of EP 3955409A4
Attorney, Agent or Firm:
PATENT CORPORATE BODY DAI-ICHI KOKUSAI TOKKYO JIMUSHO (JP)
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