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公开(公告)号：US20200177018A1
公开(公告)日：2020-06-04
申请号：US16682522
申请日：2019-11-13
发明人： Juni YASOSHIMA , Junta IZUMI , Kenji KIMURA , Toshihiro KATSUDA , Kohei MATSUURA , Junichi MATSUMOTO , Shuji TOMURA , Shigeaki GOTO , Naoki YANAGIZAWA , Kyosuke TANEMURA , Kazuo OOTSUKA , Takayuki BAN , Hironobu NISHI
IPC分类号： H02J9/06
摘要： A control device of a power supply system is configured to control inputting of electric power from a power system connected to a power distribution device to a plurality of strings connected to the power distribution device and outputting of electric power from the plurality of strings to the power system and to execute a process of stopping control for switching the at least one switching element between connection and disconnection on a string in which inputting of electric power and outputting of electric power are stopped out of the plurality of strings.
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公开(公告)号：US20200177178A1
公开(公告)日：2020-06-04
申请号：US16684734
申请日：2019-11-15
发明人： Juni YASOSHIMA , Junta IZUMI , Kenji KIMURA , Toshihiro KATSUDA , Kohei MATSUURA , Junichi MATSUMOTO , Shuji TOMURA , Shigeaki GOTO , Naoki YANAGIZAWA , Kyosuke TANEMURA , Kazuo OOTSUKA , Takayuki BAN , Hironobu NISHI
IPC分类号： H03K17/30 , H02J7/00 , H01M10/48 , H02H3/08 , H03K17/082
摘要： A power supply system includes a plurality of sweep modules that is connected to a main line. Each sweep module includes a switching element that switches between connection and disconnection between a battery module and the main line and is formed of a MOSFET. A failure detecting device of the power supply system includes a temperature detecting unit configured to detect temperatures of the plurality of sweep modules and a failure determining unit configured to determine whether a difference between a temperature of one sweep module selected from the plurality of sweep modules and a reference temperature which is determined based on the temperatures of other sweep modules is greater than a predetermined threshold value.
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公开(公告)号：US20200177019A1
公开(公告)日：2020-06-04
申请号：US16686435
申请日：2019-11-18
发明人： Juni YASOSHIMA , Junta IZUMI , Kenji KIMURA , Toshihiro KATSUDA , Kohei MATSUURA , Junichi MATSUMOTO , Shuji TOMURA , Shigeaki GOTO , Naoki YANAGIZAWA , Kyosuke TANEMURA , Kazuo OOTSUKA , Takayuki BAN , Hironobu NISHI
摘要： A power supply system disclosed here is connected to an electric power system through a distribution device. The power supply system includes a plurality of strings connected to the distribution device and a failure detector. The failure detector of the power supply system is configured to perform a first process of connecting at least one battery module to a main line to set a voltage detected by a string voltage detector at a voltage higher than a predetermined voltage in a state where a switch disconnects the distribution device and the main line, a second process of sending a disconnecting signal for disconnecting all the sweep modules from the main line, and a third process of determining whether the voltage detected by the string voltage detector is lower than the predetermined determination voltage or not after the second process.
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公开(公告)号：US20220120818A1
公开(公告)日：2022-04-21
申请号：US17561265
申请日：2021-12-23
发明人： Masahiko MITSUI , Junta IZUMI , Juni YASOSHIMA
IPC分类号： G01R31/3828 , H02J7/00 , G01R31/389 , G01R31/36
摘要： A battery capacity estimation system executes a charging and discharging process (S1), an alternating current impedance acquiring process (S2 and S3), and a battery capacity estimating process (S4 to S6). The charging and discharging process involves charging and discharging a target secondary battery. The alternating current impedance acquiring process involves acquiring a measurement result of an alternating current impedance of a target secondary battery, by applying an alternating current signal within a specific frequency range to the target secondary battery after completion of the charging and discharging in the charging and discharging process and before a predetermined maximum waiting time elapses. The battery capacity estimating step involves estimating a battery capacity of the target secondary battery based on the measurement result of the alternating current impedance.
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公开(公告)号：US20200169080A1
公开(公告)日：2020-05-28
申请号：US16686579
申请日：2019-11-18
发明人： Juni YASOSHIMA , Junta IZUMI , Kenji KIMURA , Toshihiro KATSUDA , Kohei MATSUURA , Junichi MATSUMOTO , Shuji TOMURA , Shigeaki GOTO , Naoki YANAGIZAWA , Kyosuke TANEMURA , Kazuo OOTSUKA , Takayuki BAN , Hironobu NISHI
摘要： The present teaching provides a power supply system capable of fully utilizing a plurality of batteries having different performances. A power supply system disclosed here includes a main line, a plurality of sweep modules, and a controller. Each of the sweep modules includes a battery module and an electric power circuit module. The electric power circuit module includes a switching device for connecting a connection state between the battery modules and the main line between connection and disconnection. The controller performs sweep control of sequentially switching the battery module connected to the main line among the plurality of battery modules. During an input of electric power from outside, the controller disconnects the battery module whose SOC level satisfies a high SOC condition from the main line (S7), and continues sweep control (S8, S9).
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公开(公告)号：US20200041570A1
公开(公告)日：2020-02-06
申请号：US16519138
申请日：2019-07-23
发明人： Junta IZUMI , Masahiko MITSUI , Juni YASOSHIMA , Kotaro SHIBUYA
IPC分类号： G01R31/367 , G01R31/387 , G06N3/08 , G06N3/04
摘要： A trained neural network model is a neural network model which has been trained based on Nyquist plots of a plurality of modules of which full charge capacity is within a reference range. A processing system determines to which of a first group of modules of which full charge capacity is within the reference range and a second group of modules of which full charge capacity is out of the reference range a module belongs, based on discriminant analysis in which at least one feature value extracted from the Nyquist plot of the module is adopted as an explanatory variable. When the processing system determines that the module M belongs to the first group, the processing system estimates a full charge capacity of the module by using the trained neural network model.
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公开(公告)号：US20230044496A1
公开(公告)日：2023-02-09
申请号：US17879632
申请日：2022-08-02
发明人： Tamotsu FUKUMA , Juni YASOSHIMA
IPC分类号： H01M10/48 , H02J7/00 , H01M50/204 , H01M10/42 , G01R31/3835 , G01R31/392
摘要： A method is for replacing a rechargeable battery that is considered as an unsatisfactory rechargeable battery that needs replacing in an assembled battery in which rechargeable batteries are stacked and restrained in a row and electrically connected in series or in parallel. The method includes removing of finding at least one of the rechargeable batteries to be an unsatisfactory rechargeable battery in the assembled battery and removing the unsatisfactory rechargeable battery, and installing a satisfactory rechargeable battery, which has little deterioration, on at least one end of the row of the rechargeable batteries, in a row direction, in the assembled battery from which the unsatisfactory rechargeable battery has been removed.
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公开(公告)号：US20210374816A1
公开(公告)日：2021-12-02
申请号：US17234972
申请日：2021-04-20
发明人： Hiroshi YAMASAKI , Juni YASOSHIMA
IPC分类号： G06Q30/06 , G06Q30/02 , G06Q10/00 , G01R31/392
摘要： A server includes a management information DB that stores management information indicating whether or not each of a plurality of vehicles falls under a subject vehicle for which battery replacement timing is managed. An information processing apparatus of the server includes an estimator that estimates a degree of deterioration of a secondary battery mounted on the subject vehicle based on history information showing history of use of the secondary battery mounted on the subject vehicle and a notification unit that transmits a battery replacement alarm (a notification signal that gives a notification about battery replacement timing of the subject vehicle) when the estimated degree of deterioration of the secondary battery reaches a prescribed threshold value.
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公开(公告)号：US20200209320A1
公开(公告)日：2020-07-02
申请号：US16722509
申请日：2019-12-20
发明人： Masahiko MITSUI , Junta IZUMI , Juni YASOSHIMA
IPC分类号： G01R31/3828 , G01R31/389 , G01R31/36 , H02J7/00
摘要： A battery capacity estimation system executes a charging and discharging process (S1), an alternating current impedance acquiring process (S2 and S3), and a battery capacity estimating process (S4 to S6). The charging and discharging process involves charging and discharging a target secondary battery. The alternating current impedance acquiring process involves acquiring a measurement result of an alternating current impedance of a target secondary battery, by applying an alternating current signal within a specific frequency range to the target secondary battery after completion of the charging and discharging in the charging and discharging process and before a predetermined maximum waiting time elapses. The battery capacity estimating step involves estimating a battery capacity of the target secondary battery based on the measurement result of the alternating current impedance.
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公开(公告)号：US20200176983A1
公开(公告)日：2020-06-04
申请号：US16692223
申请日：2019-11-22
发明人： Juni YASOSHIMA , Junta IZUMI , Kenji KIMURA , Toshihiro KATSUDA , Kohei MATSUURA , Junichi MATSUMOTO , Shuji TOMURA , Shigeaki GOTO , Naoki YANAGIZAWA , Kyosuke TANEMURA , Kazuo OOTSUKA , Takayuki BAN , Hironobu NISHI
摘要： A control device of a power supply system includes a first processing unit and a second processing unit. The first processing unit is a processing unit configured to perform a first process of determining certain strings out of a plurality of strings connected in parallel to a power distribution device. The second processing unit is a processing unit configured to perform a second process of performing inputting of electric power to the plurality of strings connected in parallel to the power distribution device or outputting of electric power from the plurality of strings to the power distribution device using at least the certain strings determined by the first processing unit.
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