公开(公告)号：US20170250545A1

公开(公告)日：2017-08-31

申请号：US15596700

申请日：2017-05-16

申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.

发明人： Akihiko KUDO ,  Mutsumi KIKUCHI ,  Akihiko EMORI

IPC分类号： H02J7/00 ,  H02P27/06 ,  B60L11/18 ,  H02M7/44

摘要： A battery system monitoring apparatus for monitoring a cell group having a plurality of battery cells, and includes a cell controller IC which monitors and controls the states of the plurality of battery cells. A battery controller controls the cell controller IC and a plurality of voltage detection lines measure the voltage across the terminals of the battery cell. The voltage detection lines connect positive and negative electrodes of the battery cell, respectively, to a plurality of voltage input terminals of the cell controller IC. A power line connects the positive electrode of the battery cell having the highest potential among the plurality of battery cells to a power supply terminal of the cell controller IC and a ground line which connects the negative electrode of the battery cell having the lowest potential among the plurality of battery cells to a ground terminal of the cell controller IC.

公开(公告)号：US20150191102A1

公开(公告)日：2015-07-09

申请号：US14661412

申请日：2015-03-18

申请人： Hitachi, Ltd. ,  Hitachi Automotive Systems, Ltd.

发明人： Kenji KUBO ,  Akihiko KUDO ,  Mutsumi KIKUCHI ,  Akihiko EMORI

IPC分类号： B60L11/18

CPC分类号： B60L11/1879 ,  B60L11/1855 ,  B60L11/1866 ,  G01R19/16542 ,  G01R31/026 ,  G01R31/36 ,  G01R31/3637 ,  G01R31/3658 ,  G01R35/00 ,  H02J7/0021 ,  H02J7/0026 ,  Y02T10/7005 ,  Y02T10/7061 ,  Y02T90/16

摘要： A battery system for vehicle comprises a battery unit that is constituted with a plurality of serially connected cell groups each include a plurality of serially connected battery cells, integrated circuits that are each disposed in correspondence to one of the cell groups of the battery unit and each measure terminal voltages at the battery cells in the corresponding cell group, and a signal transmission path through which one of the integrated circuits is connected to another one of the integrated circuits or to a circuit other than that of the integrated circuits.

公开(公告)号：US20160303977A1

公开(公告)日：2016-10-20

申请号：US15195541

申请日：2016-06-28

申请人： Hitachi, Ltd. ,  Hitachi Automotive Systems, Ltd.

发明人： Akihiko KUDO ,  Mutsumi KIKUCHI ,  Gosuke SHIBAHARA ,  Akihiko EMORI ,  Yasuo UEMURA ,  Tatsumi YAMAUCHI ,  Kenji KUBO ,  Masahito SONEHARA ,  Masahiko AMANO ,  Yoshinori AOSHIMA

IPC分类号： B60L3/00 ,  B60L11/18 ,  G01R31/36

CPC分类号： B60L3/0046 ,  B60L3/0069 ,  B60L3/0084 ,  B60L7/14 ,  B60L11/1803 ,  B60L11/1851 ,  B60L11/1861 ,  B60L11/1866 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  G01R31/026 ,  G01R31/362 ,  G01R31/3624 ,  G01R31/3648 ,  G01R31/3658 ,  G01R35/00 ,  H02J7/0021 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/7055 ,  Y02T10/7061

摘要： A battery monitoring system, comprises a battery state detection circuit that detects battery states of a plurality of battery cells that are connected in series, based on respective cell voltages of the plurality of battery cells, and a control circuit that monitors state of a battery cell, based on each cell voltage of the plurality of battery cells. The control circuit inputs pseudo voltage information to the battery state detection circuit, and thereby diagnoses whether or not the battery state detection circuit is operating normally.

摘要翻译： 一种电池监视系统，包括：电池状态检测电路，其基于所述多个电池单元的各个电池电压来检测串联连接的多个电池单元的电池状态;以及控制电路，其监视电池单元的状态 基于多个电池单元的每个电池电压。 控制电路向电池状态检测电路输入伪电压信息，从而诊断电池状态检测电路是否正常工作。