| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To determine and detect voltage abnormality in a cell, interruption of a connection line, and switching abnormality in a switch. <P>SOLUTION: This abnormality diagnostic device is constituted to detect at least the interruption in the connection lines L1-Ln for connecting the respective cells of a battery pack constituted by connecting the plurality of cells C1-Cn in series, to detecting terminals provided in both terminals of each cell, includes the switches Sw1-SWn and resistors R1 to Rn connected in series, and includes a discharge circuit connected in parallel to the cell in every of the cells, and further determines and detects the voltage abnormality in each cell, the interruption of each connection line, and the switching abnormality in each switch, based on control conditions of the switches Sw1-SWn, cell voltages of the respective cells C1-Cn, and both end voltages of the switches Sw1-SWn or voltages between the both terminals in each of resistances R1-Rn. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
