公开(公告)号：US20180106865A1

公开(公告)日：2018-04-19

申请号：US15554987

申请日：2016-02-25

Applicant: Panasonic Intellectual Property Management Co. Ltd.

Inventor： DAICHI HASHIMOTO ,  TAKASHI NAKAZAWA ,  HARUHIKO SEKINO

IPC: G01R31/36 ,  H01M10/44 ,  G01R31/02 ,  B60L3/00

CPC classification number: G01R31/36 ,  B60L3/0046 ,  B60L58/10 ,  B60L58/22 ,  G01R31/024 ,  G01R31/026 ,  G01R31/3835 ,  G01R31/392 ,  G01R31/396 ,  H01M10/441 ,  H01M10/482 ,  H01M2220/20 ,  H02J7/0016 ,  H02J7/0021 ,  H02J7/0026 ,  H02J7/0029

Abstract: An abnormality detecting device detects abnormalities in a system including a plurality of battery assemblies each having a plurality of cells connected in series, and includes: a connecting component configured to connect and disconnect adjacent two of the battery assemblies; and a detachment detector configured to detect whether or not the connecting component has been detached.

公开(公告)号：US20180003775A1

公开(公告)日：2018-01-04

申请号：US15707506

申请日：2017-09-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： DAICHI HASHIMOTO ,  TAKASHI NAKAZAWA ,  HARUHIKO SEKINO

IPC: G01R31/36 ,  H01M10/48 ,  H02J7/02 ,  G01R19/00

CPC classification number: G01R31/396 ,  B60L3/0069 ,  B60L58/21 ,  B60L2240/547 ,  G01R19/00 ,  G01R31/44 ,  H01M10/48 ,  H01M10/482 ,  H02J7/0021 ,  H02J7/02 ,  Y02T10/7005 ,  Y02T10/7055 ,  Y02T10/7061

Abstract: A failure in any of first switches is determined based on a voltage value of a battery assembly and a predetermined threshold. The voltage value is retained in a capacitor by turning on or off the first switches and a second switch, and obtained from a voltage detector a voltage value.

公开(公告)号：US20170299648A1

公开(公告)日：2017-10-19

申请号：US15516425

申请日：2015-10-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： DAICHI HASHIMOTO ,  TAKASHI NAKAZAWA ,  HARUHIKO SEKINO

IPC: G01R31/12 ,  G01R31/317 ,  H04B3/56

CPC classification number: G01R31/1272 ,  B60L3/0069 ,  G01N1/00 ,  G01N2201/00 ,  G01R1/00 ,  G01R27/18 ,  G01R31/006 ,  G01R31/025 ,  G01R31/31706 ,  H04B3/56

Abstract: An abnormality detection device includes: a coupling-capacitor having a first-end and a second-end coupled with a high-voltage circuit; a signal output unit; a signal extraction unit; and a signal input unit. The signal output unit is coupled with the first-end of the coupling-capacitor via a detection-resistor, and outputs an alternating-current inspection-signal. The signal extraction unit extracts the inspection-signal, as an extraction-signal, output between the detection-resistor and the coupling-capacitor. The signal input unit detects abnormality of insulation resistance of the high-voltage circuit based on a level of the inputted extraction-signal. The signal extraction unit includes a signal removing filter and a subtraction circuit. The filter removes a signal equal in frequency to the inspection-signal and passes low-frequency noises lower in frequency than the inspection-signal. The subtraction circuit outputs a differential signal, as the extraction-signal, between a signal having passed through the filter and a signal not having passed through the filter.