BATTERY MANAGEMENT DEVICE, AND BATTERY MANAGEMENT SYSTEM

摘要

PROBLEM TO BE SOLVED: To detect erroneous assembling of a battery management device and a battery pack.

SOLUTION: Batteries 10 of battery packs K1 to K3 and a motor 50 are connected in series. A positive electrode side voltage detection terminal of a battery 10 on a highest potential side among the battery packs K1 to K3, a negative electrode side voltage detection terminal of a battery 10 on a lowest potential side, and one voltage detection terminal between batteries 10 are connected to a voltage detection port P3 of a connector C4 of CMUs 1 to 3. A specific voltage detection terminal T1 between the batteries 10 is in either form of being connected to or not connected to a battery identification ports P1 and P2 of the connector 4 according to battery packs K1 to K3. The CMUs 1 to 3 comprise: a voltage detection part 60 which detects voltage of each battery 10 by a voltage detection terminal connected to the voltage detection port P3; an identification section 8 which identifies the connected battery packs K1 to K3 on the basis of the connection state of the specific voltage detection terminal T1 to the battery identification ports P1, P2; and a determination part 9 which determines whether or not the identified battery packs K1 to K3 are battery packs for management.

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