公开(公告)号：US12202375B2

公开(公告)日：2025-01-21

申请号：US17723906

申请日：2022-04-19

Applicant: DENSO CORPORATION

Inventor： Shogo Shigemori ,  Takeshi Iida ,  Tatsuhiro Numata

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

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：US12119683B2

公开(公告)日：2024-10-15

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 ,  B60L58/10 ,  B60L58/12 ,  B60L58/22 ,  G01R31/382 ,  G01R31/3842 ,  G01R31/392 ,  G01R31/396 ,  H01M10/42 ,  H01M10/48

CPC classification number: H02J7/0014 ,  B60L58/10 ,  B60L58/12 ,  B60L58/22 ,  G01R31/382 ,  G01R31/3842 ,  G01R31/392 ,  G01R31/396 ,  H01M10/425 ,  H01M10/482 ,  H02J7/0069 ,  H01M2010/4271 ,  H02J7/0019

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：US12036887B2

公开(公告)日：2024-07-16

申请号：US17687065

申请日：2022-03-04

Applicant: DENSO CORPORATION

Inventor： Takeshi Iida ,  Shogo Shigemori ,  Tatsuhiro Numata

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

CPC classification number: B60L58/10 ,  G01R31/371 ,  H04W24/04 ,  H04W76/10 ,  B60L2270/00

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：US12117494B2

公开(公告)日：2024-10-15

申请号：US17896261

申请日：2022-08-26

Applicant: DENSO CORPORATION

Inventor： Takuma Nakagawa ,  Shogo Shigemori ,  Tatsuhiro Numata ,  Tetsuya Watanabe ,  Masaki Uchiyama ,  Taisuke Kurachi

IPC: G01R31/371 ,  G01R31/3842 ,  G01R31/392 ,  G01R31/396 ,  H02J7/00

CPC classification number: G01R31/371 ,  G01R31/3842 ,  G01R31/392 ,  G01R31/396 ,  H02J7/00032 ,  H02J7/0048 ,  H02J7/005

Abstract: A battery management system includes a monitoring device and a controller. The monitoring device is arranged in a housing accommodating a battery. The monitoring device monitors the battery and acquires battery monitoring information that includes information indicating a state of the battery. The controller performs wireless communication with the monitoring device and executes a predetermined process based on the battery monitoring information. The monitoring device holds imperfect information that is battery monitoring information indicating failure of data transmission/reception between the monitoring device and the controller. The monitoring device retransmits information corresponding to the imperfect information from next time the battery monitoring information is transmitted.

公开(公告)号：US12024054B2

公开(公告)日：2024-07-02

申请号：US17699419

申请日：2022-03-21

Applicant: DENSO CORPORATION

Inventor： Shogo Shigemori ,  Takeshi Iida ,  Tatsuhiro Numata

IPC: B60L58/12 ,  H02J7/00

CPC classification number: B60L58/12 ,  H02J7/00032 ,  H02J7/0048

Abstract: A battery management system in a vehicle includes: monitoring devices arranged in a housing accommodating battery; and a control device arranged in the housing, acquiring battery information from the monitoring devices, and performing a predetermined process. The control device stores, in advance as learning data, data that correlates with an electric field intensity in the housing for frequency channels that are usable to transmit and receive data to and from each of the monitoring devices performing wireless communication. The control device determines a target frequency channel of the frequency channel hopping based on the learning data.

公开(公告)号：US12265130B2

公开(公告)日：2025-04-01

申请号：US17896200

申请日：2022-08-26

Applicant: DENSO CORPORATION

Inventor： Shogo Shigemori ,  Tatsuhiro Numata ,  Tetsuya Watanabe

IPC: G01R31/371 ,  G01R31/396 ,  H02J7/00 ,  H04W84/20

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：US12105153B2

公开(公告)日：2024-10-01

申请号：US17896179

申请日：2022-08-26

Applicant: DENSO CORPORATION

Inventor： Takuya Ohata ,  Shogo Shigemori ,  Tatsuhiro Numata ,  Tetsuya Watanabe ,  Masaki Uchiyama ,  Taisuke Kurachi

IPC: G01R31/3842 ,  G01R31/371 ,  G01R31/389 ,  G01R31/392 ,  H02J7/00

CPC classification number: G01R31/3842 ,  G01R31/371 ,  G01R31/389 ,  G01R31/392 ,  H02J7/00032 ,  H02J7/0047

Abstract: A battery management system includes a monitoring device and a controller. The monitoring device is arranged in a housing accommodating a battery, monitors the battery and acquires battery monitoring information that includes information indicating a state of the battery. The controller performs wireless communication with the monitoring device and execute a predetermined process based on the battery monitoring information. The controller transmits a request for battery monitoring information to the monitoring device. The monitoring device transmits the battery monitoring information to the controller in response to the request. The controller determines whether missing of the battery monitoring information has occurred based on a correlation between the battery monitoring information acquired from the monitoring device via wireless communication and relationship information held by the controller related to the battery monitoring information.

公开(公告)号：US12024053B2

公开(公告)日：2024-07-02

申请号：US17674116

申请日：2022-02-17

Applicant: DENSO CORPORATION

Inventor： Shogo Shigemori ,  Takeshi Iida ,  Tatsuhiro Numata

IPC: B60L58/12 ,  G01R31/382 ,  H01M10/42 ,  H01M10/48

CPC classification number: B60L58/12 ,  G01R31/382 ,  H01M10/425 ,  H01M10/482 ,  H01M2010/4271

Abstract: A battery management system includes monitoring devices arranged in a housing that houses batteries and a control device. The monitoring device includes (i) a monitoring IC capable of acquiring battery information and (ii) a wireless IC. At a start-up time of the plurality of monitoring devices, each of the wireless ICs performs an advertising operation in a cyclic advertising event for establishing a connection of wireless communication between the plurality of monitoring devices and the control device, and the control device performs a scan operation. The wireless IC of each of the two or more monitoring devices has, respectively, an event management unit that manages a generation cycle of the adverting event, for performing the advertising operation at respectively different timings.