公开(公告)号：US20150377973A1

公开(公告)日：2015-12-31

申请号：US14744414

申请日：2015-06-19

Applicant: DENSO CORPORATION

Inventor： Masahiro INOUE ,  Hayato MIZOGUCHI ,  Takeshi IIDA ,  Hiroki KOBAYASHI

IPC: G01R31/36 ,  G01R1/20

CPC classification number: G01R31/3658 ,  G01R19/16542 ,  G01R31/02 ,  G01R35/00

Abstract: A voltage monitoring device has a capacitor circuit having capacitors connected in series, first switches connecting end terminals of the capacitor circuit to specific electrode terminals of unit cells in a battery pack, second switches connecting remaining electrode terminals of the unit cells to the connection nodes between the capacitors, first voltage detection sections corresponding to each of the capacitors, a second voltage detection section connected to the end terminals of the capacitor circuit, and a microcomputer which selectively performs a first process of charging each capacitor, and a second process of charging the capacitors simultaneously. The respective specific electrode terminals correspond to the unit cells, and are arranged at an interval corresponding to the number of connection nodes formed between the capacitors. The microcomputer performs a polarity switching process of adjusting for the adjacent capacitors to have a same polarity of the charged voltage before performing the second process.

Abstract translation: 电压监视装置具有电容器电路，其具有串联的电容器，第一开关将电容器电路的端子连接到电池组中的单位电池的特定电极端子，第二开关将单元电池的剩余电极端子连接到连接节点之间 电容器，对应于每个电容器的第一电压检测部分，连接到电容器电路的端子的第二电压检测部分和选择性地执行对每个电容器进行充电的第一处理的微计算机， 同时电容。 各个特定电极端子对应于单元电池，并且以与电容器之间形成的连接节点的数量相对应的间隔布置。 在执行第二处理之前，微型计算机进行相邻电容器的极性切换处理，使其具有与充电电压相同的极性。