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公开(公告)号：US10466302B2
公开(公告)日：2019-11-05
申请号：US14852329
申请日：2015-09-11
发明人： Noriyasu Iwane , Koichi Yokoyama , Naoya Takashima , Taiji Mitsuyama , Antal Kovats , Tamas Mihalffy , Lorand Romvari
IPC分类号： G01R31/36 , H01M10/48 , H02J7/00 , G01R31/392 , G01R31/3842 , G01R31/367 , G01R31/389
摘要： [Object] To detect states of a plurality of secondary batteries whose kinds are different with high accuracy.[Organization] A measurement unit (voltage sensor 11, current sensor 12) measuring a current value of a current flowing at a secondary battery 14 and a voltage value of a voltage generated at the secondary battery by the current in a predetermined frequency; an optimization unit (CPU 10a) optimizing element constants of an equivalent circuit model of the secondary battery based on the measured voltage value and the current value; an identification unit (CPU 10a) identifying a kind of the secondary battery with reference to the optimized element constants of the equivalent circuit model; a storage unit (ROM 10b) storing detection formulas which detect the state of the secondary battery by each kind of the secondary battery; an acquisition unit (CPU 10a) acquiring the detection formula corresponding to the identified kind from the storage unit; and a detection unit (CPU 10a) detecting the state of the secondary battery by applying the element constants to the acquired detection formula, are included.
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公开(公告)号：US10393820B2
公开(公告)日：2019-08-27
申请号：US14846682
申请日：2015-09-04
发明人： Taiji Mitsuyama , Noriyasu Iwane , Koichi Yokoyama , Naoya Takashima , Antal Kovats , Tamas Mihalffy , Lorand Romvari
IPC分类号： G01R31/389 , G01R31/392 , H01M10/44 , H01M10/48 , G01R31/36 , H02J7/00 , G01R31/3842
摘要： To provide a secondary battery state detecting device that decreases the deterioration in capacity of the secondary battery and is low in arithmetic cost.A secondary battery state detecting device that detects a state of a secondary battery includes discharge means (discharge circuit (15)) for subjecting the secondary battery (14) to a pulse discharge, acquiring means (controller (10)) for controlling the discharge means to subject the secondary battery to at least one pulse discharge, and acquiring a time variation of a voltage value at that time, calculating means (controller (10)) for calculating a parameter of a predetermined function having time as a variable by fitting the variation of the voltage value acquired by the acquiring means using the predetermined function, and detecting means (controller (10)) for detecting the state of the secondary battery on the basis of the parameter of the predetermined function calculated by the calculating means.
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公开(公告)号：US09153988B2
公开(公告)日：2015-10-06
申请号：US13769636
申请日：2013-02-18
发明人： Noriyasu Iwane , Taiji Mitsuyama , Shinichi Nomoto , Mamichi Tsuyuki , Etsuzo Sato , Tamas Mihalffy , Antal Kovats
CPC分类号： H02J7/0052 , G01R31/3624 , G01R31/3651 , H01M10/425 , H01M10/48 , H01M2010/4271 , H02J7/0077 , H02J7/045 , H02J2007/0049
摘要： A full charge sensing apparatus for sensing a fully charged state of a secondary battery based on an equivalent circuit model of the secondary battery includes a measuring unit that measures a voltage and a current during charging of the secondary battery, a learning unit that performs a learning process on a plurality of parameters in the equivalent circuit model using a result of measurement of the measuring unit, and a determining unit that determines that the secondary battery is in a fully charged state in a case where, among the parameters on which the learning process has been performed by the learning unit, a parameter corresponding to a reaction resistance of the secondary battery is greater than a predetermined threshold.
摘要翻译： 用于基于二次电池的等效电路模型来感测二次电池的完全充电状态的完全充电感测装置包括测量二次电池充电期间的电压和电流的测量单元，执行学习的学习单元 使用测量单元的测量结果对等效电路模型中的多个参数进行处理;以及确定单元，其在以下情况下确定二次电池处于完全充电状态：在学习过程的参数中 已经由学习单元执行，与二次电池的反应电阻相对应的参数大于预定阈值。
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公开(公告)号：US11880064B2
公开(公告)日：2024-01-23
申请号：US17651979
申请日：2022-02-22
IPC分类号： G02B6/02 , C03C25/1065
CPC分类号： G02B6/02395 , C03C25/1065 , G02B6/02214
摘要： An optical fiber includes: a core made of silica based glass; a cladding made of silica based glass, the cladding having a refractive index that is lower than a maximum refractive index of the core; and a coating including a primary coating layer, and a secondary coating layer. An outer diameter of the cladding is less than 100 μm. A thickness of the primary coating layer is larger than or equal to 15 μm. A mode field diameter at a wavelength of 1310 nm is larger than or equal to 8.6 μm and smaller than or equal to 9.2 μm. An effective cutoff wavelength is smaller than or equal to 1260 μm. A bending loss at a wavelength of 1550 nm when bending is made at a diameter of 60 mm is smaller than or equal to 0.1 dB/100 turn.
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公开(公告)号：US11860407B2
公开(公告)日：2024-01-02
申请号：US17456601
申请日：2021-11-26
CPC分类号： G02B6/02395 , G02B6/02004 , G02B6/0365 , G02B6/03627
摘要： An optical fiber includes: a core made of silica-based glass; a cladding configured to cover an outer circumference of the core and made of silica-based glass having a refractive index smaller than a maximum refractive index of the core; and a coating configured to cover an outer circumference of the cladding. The cladding has an outer diameter of 120 μm or smaller, a mode field diameter at a wavelength of 1310 nm is 8.6 μm to 9.2 μm, an effective cut-off wavelength is 1260 μm or smaller, and a bending loss at a wavelength of 1550 nm in a case of bending at a diameter of 20 mm is 0.75 dB/turn or smaller.
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