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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.
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公开(公告)号：US20200099111A1
公开(公告)日：2020-03-26
申请号：US16576968
申请日：2019-09-20
Applicant: DENSO CORPORATION
Inventor： Tatsuhiro NUMATA , Shunichi KUBO
Abstract: In a battery monitoring system including a plurality of battery modules each including one or more cells, the battery modules are connected in series to each other. The battery monitoring system monitors the state of each cell based on the voltage value of the cell and the current value of the battery modules. A current detection unit detects the current value. Each voltage detection unit is associated with the corresponding one of the battery modules and detects the voltage value. Each slave unit is associated with the corresponding one of the battery modules, and wirelessly transmits information including synchronous current and voltage values detected by the current detection unit and the voltage detection unit. A master unit receives the information transmitted from the slave units. A central monitoring unit receives the information received by the master unit.
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公开(公告)号：US20250058675A1
公开(公告)日：2025-02-20
申请号：US18938850
申请日：2024-11-06
Applicant: DENSO CORPORATION
Inventor： Tatsuhiro NUMATA , Masaki UCHIYAMA , Taisuke KURACHI , Tetsuya WATANABE
Abstract: A battery unit configured to be exchangeable with respect to an external load, in which the battery unit includes: a battery member capable of supplying power to the external load in a state where the battery unit is connected to the external load; a battery load connected to the battery member, a measurement unit that measures at least either a current flowing through the battery load or a voltage applied to the battery load; and a control unit configured to operate with the battery member as a power source in a state where the battery unit is removed from the external load, cause a current to flow to the battery load from the battery member at a predetermined timing and acquire a measurement result measured by the measurement unit at a time when the current is caused to flow.
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公开(公告)号：US20240201266A1
公开(公告)日：2024-06-20
申请号：US18589610
申请日：2024-02-28
Applicant: DENSO CORPORATION
Inventor： Tatsuhiro NUMATA
IPC: G01R31/371 , B60L58/12 , G01R31/3842
CPC classification number: G01R31/371 , B60L58/12 , G01R31/3842 , B60L2240/545
Abstract: A battery monitoring system includes a battery, a battery monitoring device that monitors a state of the battery, and a battery control device that performs wireless communication with the battery monitoring device to acquire battery information representing results of the monitoring by the battery monitoring device and execute various controls. Moreover, the battery monitoring device is configured to execute, while executing a first process between it and the battery control device via the wireless communication, a second process that is different from the first process.
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15.发明公开公开(公告)号：US20240077539A1
公开(公告)日：2024-03-07
申请号：US18455063
申请日：2023-08-24
Applicant: DENSO CORPORATION
Inventor： Shogo SHIGEMORI , Tatsuhiro NUMATA , Tetsuya WATANABE
IPC: G01R31/371 , G01R31/387 , H01M10/42
CPC classification number: G01R31/371 , G01R31/387 , H01M10/425 , H01M2010/4271 , H01M2010/4278
Abstract: In a technique for monitoring a state of a battery, battery monitoring information is acquired via wireless communication from monitoring devices that acquire the battery monitoring information from the battery. A predetermined process is executed based on the battery monitoring information. Instructions are transmitted to the monitoring devices via unicast communication and broadcast communication within a communication cycle. The instructions include an instruction transmitted via the unicast communication to each of the monitoring devices about acquisition of the battery monitoring information, and an instruction transmitted via the broadcast communication to the monitoring devices about a timing of acquisition of the battery monitoring information.
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Patent Agency Ranking
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.
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公开(公告)号：US20230068288A1
公开(公告)日：2023-03-02
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 , H02J7/00 , G01R31/3842 , G01R31/392 , G01R31/396
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.
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公开(公告)号：US20220305951A1
公开(公告)日：2022-09-29
申请号：US17699419
申请日：2022-03-21
Applicant: DENSO CORPORATION
Inventor： Shogo SHIGEMORI , Takeshi IIDA , Tatsuhiro NUMATA
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.
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公开(公告)号：US20220266714A1
公开(公告)日：2022-08-25
申请号：US17674116
申请日：2022-02-17
Applicant: DENSO CORPORATION
Inventor： Shogo SHIGEMORI , Takeshi IIDA , Tatsuhiro NUMATA
IPC: B60L58/12 , H01M10/42 , H01M10/48 , G01R31/382
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.
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公开(公告)号：US20210218074A1
公开(公告)日：2021-07-15
申请号：US17150126
申请日：2021-01-15
Applicant: DENSO CORPORATION
Inventor： Kousuke AOKI , Tatsuhiro NUMATA
IPC: H01M10/42
Abstract: A power system includes a battery module and a battery ECU. The battery module includes multiple battery stacks. Each of multiple battery stacks includes multiple battery cells, multiple detectors which independently detect physical values of the multiple battery cells, respectively, and multiple individual communicators which wirelessly output detection results of the multiple detectors. Each of the multiple individual communicators communicates a radio signal wirelessly to and from a general monitor. The multiple battery stacks and the general monitor are accommodated in a storage space in a housing having electromagnetic shielding performance. A shield is also accommodated in the storage space while facing a communication hole formed on the housing.
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