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公开(公告)号：US20240288498A1
公开(公告)日：2024-08-29
申请号：US18289897
申请日：2021-05-13
发明人： Tomoki TAKEGAMI
IPC分类号： G01R31/367 , G01R31/392
CPC分类号： G01R31/367 , G01R31/392
摘要： The storage battery diagnosis device includes: a data point sequence generation unit which generates, on the basis of a current of a storage battery detected by a current detection device and a voltage detected by a voltage detection device, a data point sequence including a Zth-order derivative/integral curve expressed with a Zth-order derivative/integral voltage or a Zth-order derivative/integral capacity where Z represents a real number; a reference data provision unit which provides, as a reference, a reference data point sequence of the storage battery or an electrode; a point set registration unit which performs point set registration between the reference data point sequence and the data point sequence generated by the data point sequence generation unit; and a diagnosis unit which estimates a parameter indicating a state of degradation of the storage battery or the electrode on the basis of a result from the point set registration unit.
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公开(公告)号：US20230014689A1
公开(公告)日：2023-01-19
申请号：US17786572
申请日：2020-03-10
发明人： Keisuke OGASAWARA , Tomoki TAKEGAMI
IPC分类号： G01R31/392 , G01R31/385 , H01M10/48
摘要： A deterioration degree diagnosis device includes: a charging/discharging control unit configured to control charging or discharging of a battery; a battery information measurement unit configured to measure a voltage and a current of the battery and measure a capacity and voltage transition during charging or discharging; a multiple data integration unit configured to integrate battery capacity voltage data in at least two different sections measured by the battery information measurement unit, and create a battery capacity voltage curve; and a deterioration degree diagnosis unit configured to estimate a deterioration degree of the battery on the basis of the battery capacity voltage curve.
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公开(公告)号：US20240044994A1
公开(公告)日：2024-02-08
申请号：US18266284
申请日：2021-02-02
发明人： Seiji HIRAI , Tomoki TAKEGAMI
IPC分类号： G01R31/392
CPC分类号： G01R31/392
摘要： After the temperature of a battery rises to a predetermined diagnosis temperature, a charge/discharge control unit controls a charge/discharge circuit to charge or discharge the battery. A current-voltage detection unit detects current and voltage of the battery during a period in which the battery is charged or discharged. A differential voltage calculation unit calculates a differential voltage of the battery on the basis of the detected current and voltage. A deterioration state estimation unit estimates a deterioration state of the battery on the basis of a change in the calculated differential voltage.
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4.发明公开公开(公告)号：US20230333165A1
公开(公告)日：2023-10-19
申请号：US18008187
申请日：2020-08-04
发明人： Tomoki TAKEGAMI
IPC分类号： G01R31/367 , G01R31/3842 , G01R31/392
CPC分类号： G01R31/367 , G01R31/3842 , G01R31/392
摘要： A storage battery internal state estimation device includes a data generation unit and an estimation unit. The data generation unit generates time-series data for estimation from time-series data of a current value and a voltage value acquired from a storage battery. The estimation unit estimates a model function of the storage battery on the basis of the time-series data for estimation. The time-series data for estimation includes ZDj-th (j=1,..., ND) order differential voltage curves, the number of which is “ND” that is an integer of one or more, where “ZDj” is a positive real number, and ZDk≠1 for at least one “k”.
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公开(公告)号：US20230084424A1
公开(公告)日：2023-03-16
申请号：US17798563
申请日：2020-03-04
发明人： Kenji FUJIWARA , Hisatoshi FUKUMOTO , Tomoki TAKEGAMI , Tetsuya KOJIMA , Akihiko IWATA , Masahiro SUGAHARA , Hiroshi KOBAYASHI , Mari NISHIYAMA , Akira NISHIZAWA
摘要： A motor control device includes: a power source device including a DC-output power conversion device having a first mode for outputting first voltage and a second mode for outputting second voltage higher than the first voltage; a power supply device; and a control device, and controls a motor. When a flying object takes off, the control device controls the power conversion device in the second mode. When the control device judges that flight information which is one or both of information of a motor parameter obtained along with control for the motor and information of an environmental factor relevant to the flight altitude satisfies a predetermined condition, or when the control device has received an operation mode signal for which the first mode is selected on the basis of the flight information during control for the motor, the control device controls the power conversion device in the first mode.
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公开(公告)号：US20240053408A1
公开(公告)日：2024-02-15
申请号：US18271472
申请日：2021-02-25
发明人： Sho SHIRAGA , Tomoki TAKEGAMI
IPC分类号： G01R31/392 , G01R31/3842 , G01R31/371
CPC分类号： G01R31/392 , G01R31/3842 , G01R31/371
摘要： An ammeter measures current when a storage battery having a plurality of single batteries connected in series is charged or discharged. A voltmeter measures total voltage of the storage battery. A calculation device calculates dV/dt obtained by differentiating the total voltage with respect to time on the basis of a relationship between the total voltage and charging time or discharging time, separates a characteristic peak obtained by a dV/dt curve into peaks for the respective single batteries, and diagnoses soundness of the storage battery on the basis of the separated peaks.
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公开(公告)号：US20220155375A1
公开(公告)日：2022-05-19
申请号：US17431430
申请日：2019-04-11
发明人： Tomoki TAKEGAMI , Toshihiro WADA
IPC分类号： G01R31/367 , H01M10/48 , G01R31/3842
摘要： Provided is a characteristic estimation device for a storage battery including: a voltage detection unit configured to detect a terminal voltage of the storage battery; a time-series data acquisition unit configured to acquire time-series data on the terminal voltage in a stopped state of the storage battery; a model provision unit configured to provide a storage battery model; and a model parameter estimation unit configured to estimate a model parameter of the storage battery model based on the time-series data on the terminal voltage acquired by the time-series data acquisition unit and on the storage battery model provided by the model provision unit. The storage battery model includes an OCV term for expressing OCV of the storage battery and an interparticle diffusion term which is based on a fundamental solution of a one-dimensional diffusion equation expressing ion diffusion among particles forming electrodes of the storage battery.
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公开(公告)号：US20210152009A1
公开(公告)日：2021-05-20
申请号：US17047705
申请日：2019-02-22
发明人： Satoshi HARA , Tomoki TAKEGAMI , Sadayuki INOUE
摘要： A device for controlling a storage battery system is provided. The device includes: a state information calculator configured to calculate state information on each of batteries of a plurality of storage battery modules; a conversion efficiency characteristics calculator configured to calculate a power conversion efficiency of each of DC/DC converters of the plurality of storage battery modules; and a storage battery module selector configured to select one or a plurality of storage battery modules to be used while the storage battery system is charged or discharged and to determine a charge power or a discharge power of each of the selected storage battery modules, based on the state information of the batteries and the power conversion efficiencies of the DC/DC converters.
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9.发明申请公开(公告)号：US20190011506A1
公开(公告)日：2019-01-10
申请号：US16066357
申请日：2016-12-01
摘要： A first classification circuit obtains first measured values from each of devices, the first measured values of the device including at least one input value to the device and at least one output value from the device, and classifies the first measured values of the devices into normal first measured values and outlier first measured values using the OCSVM (One Class nu-Support Vector Machine). A second classification circuit obtains second measured values from each of devices, the second measured values of the device including at least one input value to the device, and classifies the second measured values of the devices into normal second measured values and outlier second measured values using the OCSVM. A determination circuit determines a device having the outlier first measured values and the normal second measured values, to be a malfunctioning device.
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公开(公告)号：US20230057522A1
公开(公告)日：2023-02-23
申请号：US17796682
申请日：2020-03-04
发明人： Kenji FUJIWARA , Hisatoshi FUKUMOTO , Tomoki TAKEGAMI , Tetsuya KOJIMA , Akihiko IWATA , Masahiro SUGAHARA , Hiroshi KOBAYASHI , Mari NISHIYAMA , Akira NISHIZAWA
摘要： A motor control device includes: a step-down device including a DC-output power conversion device having a first mode for outputting first voltage and a second mode for outputting second voltage lower than the first voltage; a power supply device; and a control device, and controls a motor. When a flying object takes off, the control device controls the power conversion device in the first mode. When the control device judges that flight information which is one or both of information of a motor parameter obtained along with control for the motor and information of an environmental factor relevant to the flight altitude of satisfies a predetermined condition, or when the control device has received an mode signal for which the second mode is selected on the basis of the flight information during control for the motor, the control device controls the power conversion device in the second mode.
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