| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery pack fault detection apparatus configured to detect breaking in all detection lines.SOLUTION: A battery pack fault detection apparatus operates as follows: storing voltages of battery cells and starting a switching element (S10, S12); determining breaking of a detection line located on the side of an adjacent cell of a battery cell when the voltage is less than a first threshold L and the voltage of the adjacent cell is within a determination range (S14-S18); determining breaking of a detection line located not on the side of the adjacent cell of the battery cell when the voltage is less than the first threshold L and the voltage of the adjacent cell is beyond the determination range (S14, S16, S20); setting a fault flag (S22); transmitting a fail-safe value when two fault flags occur in a row, or transmitting the stored voltage when two fault flags do not occur in a row (S24-S28); and resetting the fault flag when the voltage is not less than the first threshold L, and transmitting the latest voltage (S14, S30, S32). |
