| 摘要 |
PROBLEM TO BE SOLVED: To provide a controller of a battery module which allows for control depending on the type of problem of the battery module, and to provide a state discrimination method of a battery module. ! SOLUTION: A controller 4 of a battery module for controlling a battery module 2 having a plurality of secondary cells 21 electrically connected in series includes a terminal voltage measurement part 41 for measuring the terminal voltage of the plurality of secondary cells 21 repeatedly, a first operation part 42 for operating a terminal voltage difference ΔV. i.e., the difference between the maximum value Vmax and the minimum value Vmin in the terminal voltage of the plurality of secondary cells 21, every time when the terminal voltage measurement part 41 performs measurement, a classification part 43 for classifying the terminal voltage differences ΔV according to predetermined conditions, and a pattern determination part 45 for determining the pattern of change over time of the terminal volt |
