公开(公告)号：US20190241136A1

公开(公告)日：2019-08-08

申请号：US16387653

申请日：2019-04-18

Applicant: DENSO CORPORATION

Inventor： Daisuke KURODA ,  Shimpei TAKITA ,  Shingo KAWAHARA ,  Shunsuke TOMOTO

IPC: B60R16/033 ,  H02J7/14 ,  H02J7/00 ,  H01M10/44 ,  B60L58/10 ,  B60L50/50

CPC classification number: B60R16/033 ,  B60L50/50 ,  B60L58/10 ,  B60R16/02 ,  H01M10/441 ,  H01M2220/20 ,  H02J7/00 ,  H02J7/007 ,  H02J7/14 ,  H02J7/1423 ,  H02J7/1446

Abstract: A power supply apparatus includes a storage battery and supplies a voltage from the battery to an electric load. The power supply apparatus includes first and second energizing paths connected in parallel between the battery and the load, a first switch making the first energizing path conductive and interrupting the first energizing path, and a second switch making the second energizing path conductive and interrupting the second energizing path. The power supply apparatus includes a first drive circuit that operates when a voltage is supplied and drives the first switch, a second drive circuit that operates when a voltage is supplied and drives the second switch into a conductive state in a case where the first switch is driven into a conductive state by the first drive circuit, first and second supply paths respectively supplying a voltage to the first and second drive circuits.

公开(公告)号：US20220367984A1

公开(公告)日：2022-11-17

申请号：US17875560

申请日：2022-07-28

Applicant: DENSO CORPORATION

Inventor： Tatsuhiro NUMATA ,  Shingo KAWAHARA ,  Kousuke AOKI ,  Takahiro JYO

IPC: H01M50/528 ,  H01Q1/24

Abstract: A battery pack includes: a plurality of assembled batteries disposed in a housing; respective acquisition devices that acquire battery information from the assembled battery corresponding thereto; and a monitor that wirelessly communicates with the respective acquisition devices. The monitor includes a main antenna, and the respective acquisition devices include respective sub-antennas. The respective assembled batteries include respective projections formed thereon, the respective projections including respective conductive connectors configured to electrically connect the battery cells to each other. Hereinafter, the direction in which the respective projections project s defined as a projection direction. The respective sub-antennas are disposed. in the housing, at least a part of the respective sub-antennas being positioned farther in the projection direction than a projection-direction end of the respective conductive connectors is. A direct wave emitted from the main antenna reaches the respective sub-antennas and is thus received without being blocked by the respective conductive connectors.

公开(公告)号：US20230411708A1

公开(公告)日：2023-12-21

申请号：US18365359

申请日：2023-08-04

Applicant: DENSO CORPORATION

Inventor： Yoshihiro SATO ,  Taisuke KURACHI ,  Shingo KAWAHARA

IPC: H01M10/42 ,  G01R31/367 ,  G01R31/36 ,  G01R31/388 ,  B60L58/10

CPC classification number: H01M10/425 ,  G01R31/367 ,  G01R31/3648 ,  H01M2220/20 ,  B60L58/10 ,  H01M2010/4278 ,  H01M2010/4271 ,  G01R31/388

Abstract: A battery device includes: a storage unit that stores battery information including a closed circuit voltage of a plurality of battery cells electrically connected to each other and a change amount in the closed circuit voltage; a setting unit that sets an acquisition range of the closed circuit voltage based on the battery information; a detection unit that detects the closed circuit voltage; and a conversion unit that converts the closed circuit voltage detected by the detection unit into a digital signal within the acquisition range set by the setting unit.

公开(公告)号：US20230339359A1

公开(公告)日：2023-10-26

申请号：US18215456

申请日：2023-06-28

Applicant: DENSO CORPORATION

Inventor： Tatsuhiro NUMATA ,  Shingo KAWAHARA

IPC: B60L58/10 ,  H02J7/00 ,  B60L50/60 ,  G08C17/02 ,  G01R31/371 ,  G01R31/396

CPC classification number: B60L58/10 ,  B60L50/66 ,  G01R31/371 ,  G01R31/396 ,  G08C17/02 ,  H02J7/00032

Abstract: A battery pack includes a battery, a battery monitoring apparatus, a battery control apparatus, a housing, a transmissive portion, and a protection mechanism. The battery monitoring apparatus that monitors a state of the battery; a battery control apparatus that performs wireless communication with the battery monitoring apparatus, acquires battery information that is a monitoring result from the battery monitoring apparatus, and performs various types of control. The housing houses the battery, the battery monitoring apparatus, and the battery control apparatus. The transmissive portion is provided in at least a portion of the housing and allows transmission of radio waves. The protection mechanism is provided in the battery monitoring apparatus and the battery control apparatus and protects the battery information when wireless communication is performed.

公开(公告)号：US20210354586A1

公开(公告)日：2021-11-18

申请号：US17391183

申请日：2021-08-02

Applicant: DENSO CORPORATION

Inventor： Yoshinori MORITA ,  Shingo KAWAHARA

IPC: B60L58/12 ,  B60L15/20 ,  B60L3/00 ,  B60L1/00 ,  B60L53/20

Abstract: In a driving control device that controls a driving system for a vehicle, a voltage monitoring unit determines an abnormality in voltage detection and a current monitoring unit determines that power is supplied to the battery when a battery has a current value on a charge side relative to a predetermined value. When the voltage monitoring unit determines that the voltage detection is abnormal, a running control unit controls a rotating electric machine in such a manner that the vehicle is brought in a fail-safe running state. A power supply control unit controls a power supply source to be in a power supply prohibition state. A switch control unit cuts off a switch, in a case where it is determined that power is supplied to the battery during the power supply prohibition state of the power supply source.