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公开(公告)号：US20180034087A1
公开(公告)日：2018-02-01
申请号：US15662286
申请日：2017-07-28
IPC分类号： H01M8/04746 , H01M8/04014 , H01M8/04007
CPC分类号： H01M8/04768 , H01M8/04014 , H01M8/04029 , H01M8/04044 , H01M8/04067 , H01M2250/20 , Y02T90/32
摘要： A method of controlling a fuel cell system includes circulating a coolant through a fuel cell circulation passage in which a fuel cell and a gas liquid separator are provided. A valve is controlled selectively to connect or disconnect the fuel cell circulation passage and an air conditioning equipment circulation passage in which an air conditioning mechanism is provided. The valve is maintained to connect the fuel cell circulation passage and the air conditioning equipment circulation passage to circulate the coolant through the air conditioning equipment circulation passage when it is determined that the coolant includes air bubbles more than or equal to the threshold amount, when the valve connects the fuel cell circulation passage and the air conditioning equipment circulation passage, and when a temperature of the fuel cell is higher than or equal to a threshold temperature even if the air conditioning mechanism stops.
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公开(公告)号：US20170250423A1
公开(公告)日：2017-08-31
申请号：US15444333
申请日：2017-02-28
发明人： Nobuki KOIWA , Osamu OGAMI , Shinya WATANABE , Takashi YAMAMOTO
IPC分类号： H01M8/04746 , H01M8/04992 , H01M8/04119 , H01M8/04537
CPC分类号： H01M8/04753 , H01M8/04141 , H01M8/04641 , H01M8/04951 , H01M8/04992 , H01M2008/1095 , H01M2250/20 , Y02T90/32
摘要： A method for controlling a fuel cell system includes supplying an oxidant gas, via an oxidant gas supply channel, to a cathode electrode of a fuel cell. The oxidant gas is moistened to be supplied to the cathode electrode with a humidifier. An opening degree of a bypass channel valve is decreased via a feedforward control to a first opening degree when an impedance has reached a lower limit value. The opening degree of the bypass channel valve is increased via the feedforward control to a second opening degree when the impedance has reached an upper limit value. The first opening degree is smaller than the second opening degree.
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公开(公告)号：US20230290970A1
公开(公告)日：2023-09-14
申请号：US18114259
申请日：2023-02-26
IPC分类号： H01M8/04119 , H01M8/04492 , H01M8/1004 , H01M8/0267
CPC分类号： H01M8/04126 , H01M8/04507 , H01M8/045 , H01M8/1004 , H01M8/0267
摘要： The fuel cell system determines whether or not condensation is occurring in the anode gas and the cathode gas on the basis of the humidity of the cathode gas detected by a first humidity sensor provided in the power generation cells and the humidity of the anode gas detected by a second humidity sensor provided in the power generation cells, and adjusts the water content in the cathode gas and/or the anode gas in which condensation is occurring.
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公开(公告)号：US20210296667A1
公开(公告)日：2021-09-23
申请号：US17205447
申请日：2021-03-18
发明人： Nobuki KOIWA , Shinya WATANABE , Yuji MATSUMOTO , Kazuhide INOUE
IPC分类号： H01M8/04537 , G01R27/02 , G01R31/389 , H01M8/04223
摘要： A fuel cell system includes a fuel cell stack of a plurality of power generation cells and an impedance measuring device for measuring the impedance in the fuel cell stack. When stopping the operation of the fuel cell system, a method for stopping the operation of the fuel cell system operates the plurality of power generation cells to generate electric power, until the impedance value becomes equal to or greater than an objective impedance value. After the impedance value has become equal to or greater than the objective impedance value, the operation stopping method still continues the power generation of the multiple power generation cells for a given period of time.
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公开(公告)号：US20210187654A1
公开(公告)日：2021-06-24
申请号：US17273732
申请日：2019-08-20
发明人： Hitoshi SAITO , Shinya WATANABE , Xihao TAN
摘要： This spot welding method is a method for joining workpieces being a layered body of three or more metal sheets by supplying welding current. The welding current has a pulse-like waveform wherein a peak state in which the current reaches or is maintained to be within a set peak current range and a non-peak state in which the current is lowered from the peak current range to a set bottom current, and is then increased toward the peak current range again are alternately achieved. In the non-peak state, in the case where an effective value Irms of the welding current is lowered, and reaches a predetermined effective value target range, a current control process for increasing the welding current toward the peak current range is started.
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公开(公告)号：US20140162151A1
公开(公告)日：2014-06-12
申请号：US14096459
申请日：2013-12-04
发明人： Masahiro MOHRI , Junji UEHARA , Hiromichi YOSHIDA , Kenichiro UEDA , Shinya WATANABE , Akiji ANDO
IPC分类号： H01M8/04
CPC分类号： H01M8/04835 , H01M8/04492 , H01M8/04641 , H01M2008/1095 , Y02E60/50
摘要： A humidification control method includes the steps of detecting a direct current resistance component by measuring impedance during power generation of a fuel cell stack, calculating a reaction resistance component based on the detected direct current resistance component and a stack voltage, detecting a humidified state of the fuel cell stack based on the detected direct current resistance component and the calculated reaction resistance component, and adjusting a quantity of humidification of a reaction gas supplied to the fuel cell stack based on the detected humidified state of the fuel cell stack.
摘要翻译： 加湿控制方法包括以下步骤：通过测量在燃料电池堆的发电期间的阻抗来检测直流电阻分量，基于所检测的直流电阻分量和堆叠电压计算反应电阻分量，检测所述直流电阻分量的加湿状态 基于检测到的直流电阻成分和计算出的反应电阻成分，根据检测到的燃料电池堆的加湿状态，调整供给燃料电池堆的反应气体的加湿量。
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公开(公告)号：US20240331454A1
公开(公告)日：2024-10-03
申请号：US18614720
申请日：2024-03-24
申请人： HONDA MOTOR CO.,LTD.
发明人： Satoshi MATSUI , Shinya WATANABE
CPC分类号： G07C5/006 , B60L58/30 , G07C5/0808 , B60L2240/642 , B60L2240/645 , B60L2260/20
摘要： A system includes an acquisition unit which acquires information indicating working history of each of a plurality of fuel cells; an estimation unit which estimates deterioration degrees of a plurality of members of the plurality of fuel cells based on the working history; and a recommendation unit which recommends that which other fuel cell should replace a first fuel cell of the plurality of fuel cells, based on the deterioration degrees. The method includes acquiring information indicating working history of each of a plurality of fuel cells; estimating deterioration degrees of a plurality of members of the plurality of fuel cells based on the working history; and recommending that which other fuel cell should replace a first fuel cell of the plurality of fuel cells, based on the deterioration degrees.
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公开(公告)号：US20240326657A1
公开(公告)日：2024-10-03
申请号：US18614726
申请日：2024-03-24
申请人： HONDA MOTOR CO.,LTD.
IPC分类号： B60L58/40 , H01M8/04313 , H01M8/04858
CPC分类号： B60L58/40 , H01M8/04313 , H01M8/04925 , H01M2250/20
摘要： A system for controlling power source including a fuel cell and a battery provided on a vehicle, the system comprises a decision unit that decides a control parameter for power generation amount of the fuel cell based on whether the vehicle is a vehicle that mainly travels on a highway or a vehicle that mainly travels on an ordinary road. A control method for controlling power source including a fuel cell and a battery provided on a vehicle comprises deciding a control parameter for power generation amount of the fuel cell based on whether the vehicle is a vehicle that mainly travels on a highway or a vehicle that mainly travels on an ordinary road.
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公开(公告)号：US20230311235A1
公开(公告)日：2023-10-05
申请号：US18184687
申请日：2023-03-16
发明人： Xihao TAN , Shinya WATANABE
IPC分类号： B23K11/25 , G01R19/10 , G01R19/165
CPC分类号： B23K11/257 , G01R19/10 , G01R19/16571 , B23K11/115
摘要： A spatter detection method is a method for detecting an occurrence of spatter at the time of joining a workpiece using a spot welding apparatus including a pair of electrode chips, a welding power circuit connected to the pair of electrode chips, and a current sensor configured to detect a current flowing through the pair of electrode chips. A spot welding method using the spot welding apparatus includes supplying a pulse-shaped welding current to the workpiece, the pulse-shaped welding current being generated when the welding power circuit alternately repeats power distribution control and a power distribution pause over a plurality of cycles while the workpiece is sandwiched and pressurized by the pair of electrode chips. The spatter detection method includes determining, based on a current detection value detected by the current sensor in a power distribution pause section for each cycle, whether or not the spatter occurs.
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公开(公告)号：US20170244122A1
公开(公告)日：2017-08-24
申请号：US15434059
申请日：2017-02-16
发明人： Masakazu HAMACHI , Hiroaki OTA , Shinya WATANABE
IPC分类号： H01M8/04302 , H01M8/04992 , H01M8/04746
CPC分类号： H01M8/04302 , H01M8/0432 , H01M8/04753 , H01M8/04768 , H01M8/04828 , H01M8/04992 , H01M2008/1095 , H01M2250/20 , Y02T90/32
摘要： A low-temperature startup method for a fuel cell, includes detecting a temperature of the fuel cell. It is determined whether the temperature is lower than a threshold temperature. A drying operation to dry the fuel cell is increased when the temperature is determined to be lower than the threshold temperature upon starting the fuel cell to generate electric power via an electrochemical reaction between fuel gas and oxidant gas.
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