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。

公开(公告)号：US20150145481A1

公开(公告)日：2015-05-28

申请号：US14612448

申请日：2015-02-03

申请人： Hitachi Automotive Systems, Ltd.

发明人： Tatsumi YAMAUCHI ,  Akihiro MACHIDA ,  Akihiko KUDO

IPC分类号： H02J7/00

CPC分类号： H02J7/0013 ,  B60L3/0046 ,  B60L3/0069 ,  B60L11/14 ,  B60L11/1853 ,  B60L11/1866 ,  B60L11/1868 ,  B60L15/20 ,  B60L2200/26 ,  B60L2210/10 ,  B60L2210/30 ,  B60L2220/14 ,  B60L2240/421 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2270/20 ,  G01R31/362 ,  G01R31/3658 ,  H01M10/441 ,  H01M10/482 ,  H02J7/0016 ,  H02J7/0052 ,  Y02T10/642 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7005 ,  Y02T10/7055 ,  Y02T10/7061 ,  Y02T10/7066 ,  Y02T10/7077 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/7275

摘要： A battery control device that controls a battery module in which a plurality of cell groups, in each of which a plurality of cells are connected in series, are connected in series or series-parallel, includes: a plurality of cell controller ICs that control each of the plurality of cell groups; and one or more connectors that are provided for connecting the plurality of cell controller ICs to the battery module; wherein: the plurality of cell controller ICs include first and second cell controller ICs that are provided in sequence, so as to control two or more of the cell groups that are connected in series; and an auxiliary connection member (a pin) is provided for connecting GND terminal side wiring of the first cell controller IC and VCC terminal side wiring of the second cell controller IC together, externally to the battery control device.

摘要翻译： 一种电池控制装置，其控制串联或串并联连接有多个电池的多个电池组中的多个电池组的电池模块，包括：多个电池控制器IC，其控制各个电池模块 的多个单元组; 以及一个或多个连接器，用于将多个单元控制器IC连接到电池模块; 其中：所述多个单元控制器IC包括依次提供的第一和第二单元控制器IC，以便控制串联连接的两个或多个单元组; 并且提供辅助连接构件（引脚），用于将第一单元控制器IC的GND端子侧布线和第二单元控制器IC的VCC端子侧布线连接到电池控制装置的外部。

公开(公告)号：US20210091763A1

公开(公告)日：2021-03-25

申请号：US16629603

申请日：2018-06-13

申请人： Hitachi Automotive Systems, Ltd.

发明人： Hikaru MIURA ,  Akihiro MACHIDA ,  Mutsumi KIKUCHI ,  Tatsumi YAMAUCHI

IPC分类号： H03K17/0814 ,  H02M1/00 ,  H02M7/537 ,  H02H9/04 ,  G01R31/3842 ,  H03K17/73

摘要： Disconnection of a circulation path through which a circulation current flows is detected while suppressing an increase in circuit scale. A battery monitoring device includes switching circuits that control currents flowing through coils of main contactors by being controlled to be turned on and off, freewheeling diodes that are connected to the coils of the main contactors to form circulation paths for circulating the currents, and a control unit. The control unit measures output voltages of the freewheeling diodes at an input terminal, and detects the disconnection of the circulation paths based on the output voltages of the freewheeling diodes.

公开(公告)号：US20210104902A1

公开(公告)日：2021-04-08

申请号：US16970009

申请日：2019-01-18

申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.

发明人： Tatsumi YAMAUCHI ,  Hikaru MIURA ,  Mutsumi KIKUCHI ,  Akihiro MACHIDA ,  Masahiro UEDA ,  Kenichiro TSURU

IPC分类号： H02J7/00 ,  B60L58/15 ,  B60L58/14

摘要： A battery management unit capable of more reliably turning off a high-voltage relay. A battery management unit 1 includes a high-voltage relay 5 serving as a switch unit that turns on/off electrical connection between a high-voltage battery 102, which is a secondary battery, and an external device, and a power source IC 6 serving as a disconnection control unit having a first disconnection processing function of turning off the high-voltage relay 5 at the time of abnormality of the battery management unit 1 and a second disconnection processing function of detecting an abnormality of the first disconnection processing function and turning off the high-voltage relay 5.

公开(公告)号：US20190260095A1

公开(公告)日：2019-08-22

申请号：US16333533

申请日：2017-11-10

申请人： Hitachi Automotive Systems, Ltd.

发明人： Akihiro MACHIDA ,  Tatsumi YAMAUCHI

IPC分类号： H01M10/48 ,  H01M2/10 ,  H01M2/20 ,  H02J7/04

摘要： The invention is directed to provide a battery pack in which a current sensor is eliminated and the whole size is reduced. In order to solve the problem described above, a battery pack of the invention includes a battery group in which a plurality of battery cells (lithium ion battery 11, 12) are connected in series, a resistor (bus bar 20) connected in series to the battery group, cell voltage detection lines (cell voltage detection lines 101 to 104) arranged at both ends of the battery cells (lithium ion battery 11, 12) and the resistor (bus bar 20), and a battery controller connected to the cell voltage detection lines (cell voltage detection lines 101 to 104), in which one cell voltage detection line (cell voltage detection lines 101 to 104) adjacent to the battery cell (lithium ion battery 11, 12) includes a terminal which is branched and connected to the battery controller.

公开(公告)号：US20140159739A1

公开(公告)日：2014-06-12

申请号：US14178880

申请日：2014-02-12

申请人： Hitachi Vehicle Energy, Ltd. ,  Hitachi, 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： 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。