公开(公告)号：US11220183B2

公开(公告)日：2022-01-11

申请号：US16733136

申请日：2020-01-02

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Hiroshi Takao ,  Noriharu Kobayashi ,  Hoshihito Okada

IPC: B60L3/00 ,  H01M10/48 ,  H01M10/42 ,  H02J1/06 ,  B60L3/04 ,  H02J7/00 ,  B60L58/15 ,  B60L58/14

Abstract: A driver controls a switch inserted in a current path between a secondary battery and an inverter that drives a motor. A first abnormality detector instructs the driver to turn off the switch when an abnormality of the secondary battery is detected. A second abnormality detector is disposed in parallel with the first abnormality detector, and instructs the driver to turn off the switch when the abnormality of the secondary battery is detected. The first abnormality detector suspends an instruction to turn off the switch to the driver, even when the abnormality of the secondary battery is detected, in cases where an ECU instructs discharge-stop prohibition of the secondary battery. The second abnormality detector instructs the driver to turn off the switch after a lapse of a certain time from when the abnormality of the secondary battery is detected, regardless of an instruction from the ECU.

公开(公告)号：US10135243B2

公开(公告)日：2018-11-20

申请号：US15538657

申请日：2016-07-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yasumasa Isshiki ,  Mutsuhiko Takeda ,  Noriharu Kobayashi ,  Jun Kikuchi

IPC: H02J7/00 ,  H02J1/10 ,  G01R31/36 ,  G01R31/02 ,  H02J7/02 ,  G01R19/165 ,  H01M10/48

Abstract: In management device (10) for managing power storage device (20) in which a plurality of power storage blocks (B1 to B3) in which a plurality of series circuits of fuses and power storage cells is connected in parallel is connected in series, equalization controller 15 performs, when a voltage difference among the power storage blocks exceeds a set voltage difference, a control for equalizing power storage blocks (B1 to B3). Fuse blowout determination unit 18 determines, based on a frequency of equalization performed by equalization controller 15, whether one of the fuses is blown.

公开(公告)号：US10576827B2

公开(公告)日：2020-03-03

申请号：US15570239

申请日：2016-04-07

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Hiroshi Takao ,  Noriharu Kobayashi ,  Hoshihito Okada

IPC: B60L3/00 ,  H01M10/48 ,  H01M10/42 ,  H02J1/06 ,  B60L3/04 ,  H02J7/00

Abstract: A driver controls a switch inserted in a current path between a secondary battery and an inverter that drives a motor. A first abnormality detector instructs the driver to turn off the switch when an abnormality of the secondary battery is detected. A second abnormality detector is disposed in parallel with the first abnormality detector, and instructs the driver to turn off the switch when the abnormality of the secondary battery is detected. The first abnormality detector suspends an instruction to turn off the switch to the driver, even when the abnormality of the secondary battery is detected, in cases where an ECU instructs discharge-stop prohibition of the secondary battery. The second abnormality detector instructs the driver to turn off the switch after a lapse of a certain time from when the abnormality of the secondary battery is detected, regardless of an instruction from the ECU.