Title:
組電池の電圧調整装置及び組電池の電圧調整方法
Document Type and Number:
Japanese Patent JP4081970
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To form and implement with lower cost a device or a method for controlling dispersion of the terminal voltage of a battery pack. SOLUTION: A battery pack 22 in which a plurality of unit cells 23 made up of lithium secondary battery is applied to battery for driving a traction motor of HEV, and a CPU 38 of a battery pack supervisory circuit part 26 controls the drive of the traction motor through a vehicle control circuit part 29 as such that the discharge from or charge to the battery pack 22 is preferentially performed when comparators 31U, 31L of a cell status monitor circuit part 25 exceeds the upper limit voltage Vu or is below the lower limit voltage Vl. Then, when the dispersion of the terminal voltage of each unit cell 23 which composes a sell group 24 is determined to be extended beyond the predetermined level, a mean unit cell voltage VCM charges the upper limit voltage Vu to exceed by the predetermined voltage Δ and the dispersion of the terminal voltage is adjusted.
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Inventors:
Hiroshi Tamura
Application Number:
JP2000288767A
Publication Date:
April 30, 2008
Filing Date:
September 22, 2000
Export Citation:
Assignee:
株式会社デンソー
International Classes:
G06F15/173; H02J7/02; B60K6/20; B60W10/26; B60W20/00; G06F13/36; G06F13/362; G06F15/177; H01M10/44; H02J7/00
Domestic Patent References:
| JP215580A | ||||
| JP7336905A | ||||
| JP1155866A | ||||
| JP200060011A | ||||
| JP2000134805A | ||||
| JP2000152508A | ||||
| JP2000324712A | ||||
| JP2136445U |
Attorney, Agent or Firm:
Tsuyoshi Sato