Title:
鉄道車両用蓄電池制御システム
Document Type and Number:
Japanese Patent JP5806459
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a control system having improved detection accuracy of battery capacity of a storage battery.SOLUTION: A storage battery control system for a railway vehicle having a chargeable/dischargeable storage battery and a power converter calculates a charged or discharged amount based on a discharged amount from the storage battery during power running or a charged amount to the storage battery during braking. The open terminal voltage of the battery is determined during a non-charge and non-discharge period such as a coasting period or a stopping period after elapse of a predetermined relaxation time period. The capacity of the battery is calculated based on the charged and discharged amounts and a change in charge rate before and after the charge and discharge of the storage battery. Occasions of calculating the battery capacity are thus increased to improve the accuracy.
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Inventors:
Yu Arita
Eiichi Toyota
Masahiro Nagasu
Eiichi Toyota
Masahiro Nagasu
Application Number:
JP2010220634A
Publication Date:
November 10, 2015
Filing Date:
September 30, 2010
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G01R31/36; B60L3/00; H01M10/42; H01M10/44; H01M10/48; H02J7/00
Domestic Patent References:
| JP200368369A | ||||
| JP200634041A | ||||
| JP201054470A | ||||
| JP200867510A |
Attorney, Agent or Firm:
Patent Business Corporation Daiichi International Patent Office