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1.发明公开公开(公告)号：US20240120762A1
公开(公告)日：2024-04-11
申请号：US18546144
申请日：2022-02-25
发明人： Satoru NARIMOTO , Atsushi FUKUSHIMA , Yuki IMANAKA
CPC分类号： H02J7/00712 , H01M10/44 , H01M10/46 , H02J7/00032 , H02J7/0048 , B60R16/033
摘要： A control device 120 of an energy storage cell 62 calculates an SOC or a remaining charge of the energy storage cell 62 by a current integration method, and determines a command value of a charge voltage for the energy storage cell based on the SOC or the remaining charge obtained by the current integration method.
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2.发明公开公开(公告)号：US20240235232A1
公开(公告)日：2024-07-11
申请号：US18561650
申请日：2022-04-13
发明人： Atsushi FUKUSHIMA , Shigeki HATTORI
IPC分类号： H02J7/00 , B60R16/033 , H01M10/42
CPC分类号： H02J7/0063 , B60R16/033 , H01M10/425 , H01M2010/4271
摘要： A control device 130 for an energy storage cell mounted on a vehicle, wherein the energy storage cell 62 includes, with respect to battery performance, a first region and a second region having the lower battery performance than the first region, and the control device 130, in a case where the energy storage cell 62 is shifted from the first region A1 to the second region A2, outputs a signal notifying shifting of the region A to a vehicle control unit 140 that controls the vehicle 10, and after outputting of the signal, the control device 130 maintains a current interruption device 53 that interrupts a current to the energy storage cell 62 in a closed state at least for a predetermined time Tw, thus enabling supply of electricity to the vehicle 10.
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公开(公告)号：US20220140631A1
公开(公告)日：2022-05-05
申请号：US17575303
申请日：2022-01-13
发明人： Atsushi FUKUSHIMA
摘要： An energy storage apparatus includes: a plurality of energy storage devices connected in series; a voltage detection unit that detects voltages of the plurality of energy storage devices; a discharge circuit that discharges the energy storage devices; and a control unit. The energy storage devices include lithium ion cells. The plurality of energy storage devices is chargeable by an external charger for a lead-acid battery, wherein a charge voltage per cell of the external charger for the lead-acid battery is higher than a maximum voltage of the energy storage device, and wherein the control unit discharges only an energy storage device having a highest voltage out of the plurality of energy storage devices when the plurality of energy storage devices is charged by a charger.
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公开(公告)号：US20210263086A1
公开(公告)日：2021-08-26
申请号：US17262613
申请日：2019-06-26
发明人： Atsushi FUKUSHIMA
IPC分类号： G01R27/08 , G01R31/389 , G01R31/36
摘要： An estimation apparatus for estimating internal resistance of an engine starting battery includes a processor that executes first estimation processing for estimating the internal resistance of the battery by a first estimation method based on a current change and a voltage change of the battery at the time of cranking by an engine starting apparatus, and second estimation processing for estimating the internal resistance of the battery by a second estimation method different from the first estimation method for a period from the cranking by the engine starting apparatus to the next cranking.
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5.发明公开公开(公告)号：US20240322268A1
公开(公告)日：2024-09-26
申请号：US18577830
申请日：2022-06-10
IPC分类号： H01M10/42 , H01M50/55 , H01M50/569 , H01M50/574
CPC分类号： H01M10/4257 , H01M50/55 , H01M50/569 , H01M50/574 , H01M2010/4271
摘要： An energy storage apparatus 50 includes: a cell 62; positive and negative external terminals 51, 52; a current interruption device 53 disposed on a first line 55P that connects the cell and one of the external terminals; a resistor 54 for current measurement that is disposed on a second line 55N that connects the cell and the other of the external terminals; a discharge circuit 120 connected to the cell 62 and the current interruption device 53 in parallel; and a control device 130. The discharge circuit 120 includes a discharge resistor 121 and a discharge switch 123. The control device 130, in a state where the current interruption device 53 is controlled to take an open state, measures currents I1, I2 by the resistor 54 with respect to a state where the discharge switch 123 is in a closed position and a state where the discharge switch 123 is in an open position, and diagnoses a failure in the current interruption device 53 based on a difference ΔI between a current value I2 measured when the discharge switch 123 is in the closed position and a current value I1 measured when the discharge switch 123 is in the open position.
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6.发明申请公开(公告)号：US20220200307A1
公开(公告)日：2022-06-23
申请号：US17440765
申请日：2020-03-10
发明人： Kazunori DONO , Atsushi FUKUSHIMA
摘要： A protective apparatus of an energy storage device includes a current breaker that interrupts the current of the energy storage device, and a control part. There are a plurality of conditions having different current thresholds and cumulative thresholds, and the control part calculates a cumulative value N of times during which the current exceeds any one of the current thresholds Is, and executes current interruption processing of interrupting the current when the calculated cumulative value N exceeds one of the cumulative thresholds Ns associated with the current threshold Is.
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公开(公告)号：US20200059107A1
公开(公告)日：2020-02-20
申请号：US16498941
申请日：2018-04-05
发明人： Atsushi FUKUSHIMA
摘要： An energy storage apparatus includes a plurality of energy storage devices connected in series, a voltage detection circuit that detects voltages of the plurality of energy storage devices, and a discharge circuit that discharges the energy storage devices individually, and a BMU having a control unit, in which the control unit discharges only an energy storage device having a highest voltage among the plurality of energy storage devices. Further, charging is stopped when a first duration elapses in a state that a cell voltage of the energy storage device having the highest voltage exceeds a first voltage threshold, or charging is stopped when a second duration elapses in a state that the cell voltage of the energy storage device having the highest voltage exceeds a second voltage threshold.
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公开(公告)号：US20170371000A1
公开(公告)日：2017-12-28
申请号：US15526982
申请日：2015-11-13
IPC分类号： G01R31/36 , G01R19/165 , H02J7/00 , H01M10/42 , H01M10/48
摘要： A management device manages a secondary battery which includes a positive electrode having an active material with a characteristic where a potential flat portion exists in a relationship between a capacity and a potential. The management device includes a management unit which detects an occurrence of temporary degradation of the secondary battery when an SOC correlation associated value which is associated with an SOC of the secondary battery is acquired and the SOC which corresponds to the acquired SOC correlation associated value is equal to or less than a preset prescribed SOC or when a state value relating to a voltage of the secondary battery is acquired and a magnitude relationship between the acquired state value relating to the voltage of the secondary battery and a preset threshold value satisfies a predetermined condition.
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公开(公告)号：US20220179010A1
公开(公告)日：2022-06-09
申请号：US17602195
申请日：2020-04-17
发明人： Atsushi FUKUSHIMA
IPC分类号： G01R31/392 , G01R31/374 , G01R31/389 , G01R31/367 , G01R31/3842 , H01M10/48
摘要： An estimation apparatus that estimates a degradation amount of an energy storage device includes: a storage unit; and an arithmetic processing unit. The energy storage device has a characteristic of including a first degradation area in which a temporal transition of a degradation amount shows a first transition and a second degradation area in which the temporal transition of the degradation amount shows a second transition. The storage unit holds first arithmetic data for calculating the degradation amount in the first degradation area, and second arithmetic data for calculating the degradation amount in the second degradation area. The arithmetic processing unit executes determination processing of determining a degradation area of the energy storage device, and estimation processing of selecting arithmetic data corresponding to the degradation area from the storage unit to estimate the degradation amount of the energy storage device.
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10.发明申请公开(公告)号：US20210050733A1
公开(公告)日：2021-02-18
申请号：US16964451
申请日：2019-01-18
摘要： A management device for an energy storage device, includes a processing unit that manages the energy storage device. When the management device for the energy storage device has lost power due to a voltage drop of the energy storage device, the processing unit determines whether cause of the power loss is an external short circuit between external terminals of the energy storage device or an engine start, and the processing unit executes a response operation according to the occurrence of the external short circuit in the case of the external short circuit, and does not execute the response operation in the case of the engine start.
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