公开(公告)号：US11273777B2

公开(公告)日：2022-03-15

申请号：US16730286

申请日：2019-12-30

Applicant: DENSO CORPORATION

Inventor： Shin Takahashi ,  Yamato Utsunomiya

IPC: B60R16/033 ,  H02J7/14 ,  H02J7/34 ,  H02J9/06

Abstract: A power supply control apparatus is applied to a power supply system. The power supply system includes: a first storage battery and a second storage battery that are connected in parallel to a power generator; and a switch that is provided further towards the first storage battery side than a connection point with the power generator on an electrical path that connects the first storage battery and the second storage battery is. A power supply control apparatus is started in accompaniment with input of a startup signal from outside and controls open and closed states of the switch. The power supply control apparatus includes: an abnormality determining unit that determines whether a startup signal abnormality in which the startup signal has not been received by the power supply control apparatus in a normal manner has occurred; and an abnormality operating unit that operates the switch to a closed state when the startup signal abnormality is determined to have occurred.

公开(公告)号：US10996280B2

公开(公告)日：2021-05-04

申请号：US16511920

申请日：2019-07-15

Applicant: DENSO CORPORATION

Inventor： Yuki Tachibana ,  Yamato Utsunomiya ,  Takeshi Sada

IPC: H02J7/00 ,  G01R31/382 ,  B60L58/12 ,  H01M10/44 ,  H01M10/48

Abstract: A battery pack includes a secondary battery, a state of charge calculator, an integrated current amount calculator, a differential state of charge calculator, a full charge capacity calculator, and a charging-and-discharging control section. The differential state of charge calculator calculates a differential state of charge between a first state of charge at a first detection timing and a second state of charge at a second detection timing. The integrated current amount calculator calculates an integrated amount of a current flowing to the secondary battery in a subject period from the first detection timing to the second detection timing. The full charge capacity calculator calculates a full charge capacity of the secondary battery based on the differential state of charge and the integrated current amount. The charging-and-discharging control section is configured to restrict one of the charging and the discharging of the secondary battery during the subject period.

公开(公告)号：US10855100B2

公开(公告)日：2020-12-01

申请号：US16395726

申请日：2019-04-26

Applicant: DENSO CORPORATION

Inventor： Shimpei Takita ,  Yamato Utsunomiya ,  Shunsuke Tomoto

IPC: H02J7/14 ,  B60R16/03 ,  H02J7/00 ,  B60R16/02 ,  H02H7/00 ,  B60R16/033

Abstract: A power supply control apparatus is applied to a power supply system that includes an opening and closing unit that has a plurality of switches that are connected in series on an energization path over which energization from a voltage source is performed and a plurality of diodes that are respectively connected in parallel to the plurality of switches, in which the plurality of diodes include diodes that are arranged in opposite directions to each other. The power supply control apparatus includes a determining unit determining that an abnormal state has occurred in which a current is flowing to any of the plurality of diodes in a state in which the plurality of switches are turned off, and a control unit controlling the switch that is connected in parallel to the diode through which the current is flowing to an on-state, when the abnormal state is determined to have occurred.