| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a plural battery pack voltage monitoring device which can surely transmit overcharge or overdischarge data detected by voltage detection ICs (21-1) to (21-n) to a CPU 32. <P>SOLUTION: A fail signal indicating overcharging or overdischarging of each unit cell detected by voltage detection ICs (21-1) to (21-n) is transmitted in both digital and analog signal forms to a CPU 32. And, when analog and digital fail signals match, the CPU 32 determines that overcharging or overdischarging in a unit cell has occurred. Or, if the two signals do not match, the CPU 32 determines that an error in data communication conducted via communication lines L1 to L3 has occurred, notifying the operator of it by an alarm signal, etc. As a result, overcharging and overdischarging can be detected with high accuracy. <P>COPYRIGHT: (C)2012,JPO&INPIT |
