Title:
電池電圧検知装置および電池電圧検知方法
Document Type and Number:
Japanese Patent JP5627278
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a cell voltage detection device and a cell voltage detection method such that the constitution is simplified by decreasing the number of voltage detection device and switch circuit, and one or all of voltages by unit cells, voltages by cell blocks, and the voltage of the whole cells can be detected.SOLUTION: A cell voltage detection device 1 which detects a voltage of a single cell comprising a secondary cell or a set cell 10 constituted by connecting a plurality of single cells B1 to BX, each comprising a plurality of secondary cells connected in parallel, in series. The cell voltage detection device 1 comprises a voltage detection device 2 which detects the voltage of the whole unit cells 10. Switch circuits C1 to CX having opening/closing switches S1 to SX corresponding to the single cells B1 to BX are connected to the voltage detection device 2 so as to detect one or all of the voltages by the single cells B1 to BX, voltages by cell packs P1 to PX of the plurality of single cells B1 to BX, and the voltage of the whole set cell 10 through opening/closing control over the opening/closing switches S1 to SX.
Inventors:
▲高▼橋 渉
Application Number:
JP2010103828A
Publication Date:
November 19, 2014
Filing Date:
April 28, 2010
Export Citation:
Assignee:
三菱重工業株式会社
International Classes:
H02J7/00; B60L3/00; G01R19/00; G01R31/36; H01M10/42; H01M10/48; H02J7/02
Attorney, Agent or Firm:
Takaharu Fujita
Ueda Kunio
Ueda Kunio