| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly reliable vehicular battery system.SOLUTION: The vehicular battery system includes: a battery module 9A comprising a plurality of battery cells BC1-BC6 connected in series; integrated circuits CC3A-CC3N for grouping the battery cells by two or more and handling the battery cells BC1-BC6 in the groups; first transmission paths 602, 604 for transmitting command signals from a host control circuit 20 for controlling the integrated circuits CC3A-CC3N to the highest order integrated circuit 3A of all the integrated circuits via first isolation circuits PH1, PH2; second transmission paths 602, 604 for transmitting data signals collected by the integrated circuits CC3A-CC3N from the highest order integrated circuit CC3A to the lowest order integrated circuit CC3N; and third transmission paths 602, 604 for transmitting the data signals from the lowest order integrated circuit CC3N to the host control circuit 20 via second isolation circuits PH3, PH4 powered by a total voltage of the battery module 9A. |
