公开(公告)号：US20220131389A1

公开(公告)日：2022-04-28

申请号：US17502315

申请日：2021-10-15

Applicant: DENSO CORPORATION

Inventor： Shogo SHIGEMORI ,  Shunichi KUBO ,  Takeshi IIDA ,  Yukihiro TOMONAGA ,  Taisuke KURACHI ,  Shozo SUZUKI ,  Shinya KATO

IPC: H02J7/00 ,  H01M10/48 ,  G01R31/392 ,  G01R31/3842 ,  H01M10/42

Abstract: A battery management device is configured to set a limited measurement range that limits a range for measuring a voltage of each of a plurality of batteries for a vehicle. The battery management device is configured to measure the voltage of each of the plurality of batteries within the limited measurement range.

公开(公告)号：US20240133974A1

公开(公告)日：2024-04-25

申请号：US18489958

申请日：2023-10-18

Applicant: DENSO TEN Limited ,  DENSO CORPORATION

Inventor： Hiroshi OHTANI ,  Shogo SHIGEMORI

IPC: G01R31/396 ,  G01R31/371 ,  G01R31/392

CPC classification number: G01R31/396 ,  G01R31/371 ,  G01R31/392

Abstract: A battery monitoring system includes measurement devices and a battery monitoring device. Each measurement device measures a cell state of a corresponding cell constituting a battery. The battery monitoring device sequentially communicates, by using wireless communication, with the measurement devices during a communication period; and acquires state information indicating the cell state from each measurement device. In a case where transmitting a measurement instruction of the cell state to each of the measurement devices, the battery monitoring device transmits, to each of the plurality of measurement devices, a corresponding stand-by time interval such that measurement timings of the measurement devices synchronize, the stand-by time interval being a time interval from reception of the measurement instruction until the measurement timing. Each of the measurement devices measures the corresponding cell state in a case where the stand-by time interval has elapsed since reception of the measurement instruction.

公开(公告)号：US20230065084A1

公开(公告)日：2023-03-02

申请号：US17896203

申请日：2022-08-26

Applicant: DENSO CORPORATION

Inventor： Shusaku NAKATA ,  Shogo SHIGEMORI ,  Tatsuhiro NUMATA ,  Tetsuya WATANABE

IPC: H01M10/42 ,  B60L58/10 ,  G01R31/371 ,  G01R31/392 ,  G01R31/3842 ,  H01M10/48 ,  H04W76/19 ,  H04W76/15 ,  H04W76/30 ,  H02J7/00

Abstract: A battery management system includes monitoring devices arranged in a housing accommodating a battery. The monitoring devices monitor the battery and acquire battery monitoring information. The controller performs wireless communication with each of the monitoring devices via a wireless communication connection. The controller transmits a disconnection instruction to each of the monitoring devices. Each of the monitoring devices periodically executes a requesting operation after disconnection of the wireless communication connection. The controller accepts the requesting operation to establish the wireless communication connection. The controller and each of the monitoring devices perform a periodic communication of the battery monitoring information via the established wireless communication connection. Each of the monitoring devices determines start timing of the requesting operation based on reception timing of the disconnection instruction so that at least some of timings of requesting operations of the monitoring devices do not overlap with each other.

公开(公告)号：US20220281347A1

公开(公告)日：2022-09-08

申请号：US17687065

申请日：2022-03-04

Applicant: DENSO CORPORATION

Inventor： Takeshi IIDA ,  Shogo SHIGEMORI ,  Tatsuhiro NUMATA

IPC: B60L58/10 ,  H04W76/10 ,  H04W24/04 ,  G01R31/371

Abstract: A battery management system includes a monitoring device and a control device. The control device transmits request data requesting transmission of battery information, and the monitoring device transmits response data including the battery information to the control device. The control device makes next request data include communication establishment information and transmits the next request data. The monitoring device includes a transmission buffer capable of individually accumulating the battery information for multiple times. The monitoring device deletes the battery information corresponding to communication establishment from the transmission buffer, and holds the battery information corresponding to communication failure in the transmission buffer based on the communication establishment information.

公开(公告)号：US20240304080A1

公开(公告)日：2024-09-12

申请号：US18600893

申请日：2024-03-11

Applicant: DENSO CORPORATION

Inventor： Shogo SHIGEMORI ,  Takeshi IIDA ,  Tatsuhiro NUMATA ,  Tetsuya WATANABE ,  Hironori TSUCHIYA ,  Takuya HARADA ,  Kenji YAMADA

IPC: G08C17/02 ,  G01R31/3835

CPC classification number: G08C17/02 ,  G01R31/3835

Abstract: A control apparatus performing a wireless communication with a supervisory apparatus that acquires battery information indicating a battery state and transmits the acquired battery information, and controlling the supervisory apparatus based on the battery information. The control apparatus includes a wireless communication unit that wirelessly transmits a plurality of commands which are combined to the supervisory apparatus corresponding to a control period set for a control of monitoring the battery state.

公开(公告)号：US20240142539A1

公开(公告)日：2024-05-02

申请号：US18472456

申请日：2023-09-22

Applicant: DENSO CORPORATION

Inventor： Shogo SHIGEMORI ,  Tatsuhiro NUMATA ,  Tetsuya WATANABE

IPC: G01R31/396 ,  B60L58/12 ,  B60L58/16 ,  B60L58/18 ,  G01R31/00 ,  H01M10/42

CPC classification number: G01R31/396 ,  B60L58/12 ,  B60L58/16 ,  B60L58/18 ,  G01R31/006 ,  H01M10/4257 ,  H01M2010/4278

Abstract: A battery monitoring includes a plurality of monitoring units and a wireless transmission unit. The plurality of monitoring units is configured to acquire battery-related information including at least information indicating a state of a battery. The wireless transmission unit is configured to wirelessly transmit the battery-related information acquired by the plurality of monitoring units to a control device.

公开(公告)号：US20230064107A1

公开(公告)日：2023-03-02

申请号：US17896200

申请日：2022-08-26

Applicant: DENSO CORPORATION

Inventor： Shogo SHIGEMORI ,  Tatsuhiro NUMATA ,  Tetsuya WATANABE

IPC: G01R31/371 ,  H02J7/00 ,  G01R31/396

Abstract: A monitoring system includes monitoring devices provided in a monitored device, and a controller that wirelessly communicates with the monitoring devices to acquire monitoring information. In an operating state of the monitored device, the controller and the monitoring devices establish individual connections in which the controller acting as a communication master performs wireless communication with each of the monitoring devices acting as communication slaves. In a non-operating state of the monitored device, the controller and the monitoring devices maintain communication between the controller and the monitoring devices by establishing a sequential connection. In the sequential connection, the controller acting as a communication master performs wireless communication with one of the monitoring devices acting as a communication slave, and one of the monitoring devices, in sequence, acting as a communication master performs wireless communication with another one of the monitoring devices acting as a communication slave.

公开(公告)号：US20230061834A1

公开(公告)日：2023-03-02

申请号：US17896217

申请日：2022-08-26

Applicant: DENSO CORPORATION

Inventor： Shogo SHIGEMORI ,  Tatsuhiro NUMATA ,  Tetsuya WATANABE

IPC: H02J7/00 ,  H01M10/42

Abstract: A monitoring system includes monitoring devices and a controller configured to wirelessly communicate with the monitoring devices to acquire monitoring information of a monitored device. In a non-operating state of the monitored device, the monitoring devices establish communication connections between the monitoring devices and periodically perform communication through the communication connections. One monitoring device acts as a communication master and another one monitoring device acts as a communication slave in each of the communication connections. Each of the monitoring devices acts as a communication master for another of the monitoring devices and also as a communication slave for another of the monitoring devices. In the non-operating state of the monitored device, the controller disconnects a communication connection between the controller and each of the monitoring devices, or performs communication with at least one of the monitoring devices less frequently than the communication between the monitoring devices.

公开(公告)号：US20220340041A1

公开(公告)日：2022-10-27

申请号：US17723906

申请日：2022-04-19

Applicant: DENSO CORPORATION

Inventor： Shogo SHIGEMORI ,  Takeshi IIDA ,  Tatsuhiro NUMATA

IPC: B60L58/12 ,  H02J7/00 ,  G01R31/396 ,  H01M10/42 ,  B60L58/16

Abstract: A battery management system includes multiple monitoring devices and a control device. The monitoring devices are disposed in a housing that accommodates a battery of a vehicle and monitors battery information indicating a state of the battery. The control device performs wireless communication with each of the monitoring devices and acquires data including the battery information to execute a predetermined process. The control device sets a cycle in which the multiple monitoring devices make a round in order to perform wireless communication with each of the monitoring devices, and is capable of adjusting the cycle.

公开(公告)号：US20240230786A9

公开(公告)日：2024-07-11

申请号：US18489958

申请日：2023-10-19

Applicant: DENSO TEN Limited ,  DENSO CORPORATION

Inventor： Hiroshi OHTANI ,  Shogo SHIGEMORI

IPC: G01R31/396 ,  G01R31/371 ,  G01R31/392

CPC classification number: G01R31/396 ,  G01R31/371 ,  G01R31/392

Abstract: A battery monitoring system includes measurement devices and a battery monitoring device. Each measurement device measures a cell state of a corresponding cell constituting a battery. The battery monitoring device sequentially communicates, by using wireless communication, with the measurement devices during a communication period; and acquires state information indicating the cell state from each measurement device. In a case where transmitting a measurement instruction of the cell state to each of the measurement devices, the battery monitoring device transmits, to each of the plurality of measurement devices, a corresponding stand-by time interval such that measurement timings of the measurement devices synchronize, the stand-by time interval being a time interval from reception of the measurement instruction until the measurement timing. Each of the measurement devices measures the corresponding cell state in a case where the stand-by time interval has elapsed since reception of the measurement instruction.