公开(公告)号：US11056886B2

公开(公告)日：2021-07-06

申请号：US16615523

申请日：2018-04-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masaki Kato ,  Naohisa Morimoto ,  Masaaki Kuranuki ,  Jun Yamasaki ,  Yohei Ishii ,  Koichi Sawada

IPC: H02J3/32 ,  H02J7/00 ,  H02J7/02 ,  H02J7/34 ,  H02M1/12 ,  H02M7/5387 ,  H01M10/42 ,  H01M10/48

Abstract: In a power storage system, a three-phase AC wire is connected to a three-phase AC power system. Power storage blocks, each of which includes a power storage module and a power conditioner, are connected in parallel to the three-phase AC wire. A system controller individually controls power storage blocks. The power storage modules each includes: a power storage unit; and a management unit that manages the power storage unit. The power conditioner includes a power converter and a controller. The power converter converts DC power discharged into single-phase AC power and outputs the converted AC power to two lines of the three-phase AC wire, or converts single-phase AC power received from the two lines of the three-phase AC wire into DC power and charges the power storage unit. The controller is connected to the system controller via a communication line and the management unit via a communication line.

公开(公告)号：US11772512B2

公开(公告)日：2023-10-03

申请号：US17266787

申请日：2019-02-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Makoto Hashimoto ,  Yohei Ishii ,  Tohru Watanabe ,  Tadao Kimura ,  Masaaki Takegata

IPC: B60L58/16 ,  G06Q10/0631 ,  G06Q30/0283 ,  H02J7/00 ,  B60L50/60 ,  B60L58/12 ,  B60L15/20 ,  G05B19/042 ,  G06Q10/087 ,  G06Q50/30 ,  H01M10/48 ,  G06Q10/20 ,  G06Q50/06

CPC classification number: B60L58/16 ,  B60L15/20 ,  B60L50/60 ,  B60L58/12 ,  G05B19/042 ,  G06Q10/06315 ,  G06Q10/087 ,  G06Q30/0284 ,  G06Q50/30 ,  H01M10/48 ,  H01M10/486 ,  H02J7/0013 ,  H02J7/0047 ,  B60L2240/12 ,  B60L2240/14 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2240/60 ,  B60L2240/66 ,  B60L2240/68 ,  B60L2240/70 ,  G05B2219/2639 ,  G06Q10/20 ,  G06Q50/06 ,  H01M2220/20

Abstract: In a vehicle power supply system mounted on an electric vehicle, a vehicle controller switches a discharge power limit to a motor during travel of the electric vehicle according to degradation information of a battery module to which a plurality of cells are connected, the degradation information being calculated in advance before the travel of the electric vehicle. For example, the vehicle controller switches a limit of a maximum acceleration and/or maximum speed of the electric vehicle as the switching of the discharge power limit.

公开(公告)号：US12176737B2

公开(公告)日：2024-12-24

申请号：US18006570

申请日：2021-07-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yohei Ishii ,  Yusuke Itakura

IPC: H02J7/00 ,  B60L50/60 ,  B60L58/12 ,  B60L58/22 ,  G01R31/36 ,  G01R31/387 ,  B60L53/80

Abstract: An acquisition unit of management unit acquires monitoring data including at least one of voltage and state of charge of a plurality of power storage packs connected in parallel. A switch controller can individually control on/off of a plurality of switches based on a voltage difference between the plurality of power storage packs or an SOC difference between the plurality of power storage packs. When calculating the entire capacity of the plurality of power storage packs, a capacity calculator also adds the capacity of power storage pack connected to a switch in an off state in a case where the switch can be controlled to an on state in future.