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    • 11. 发明公开
    • FUEL CELL SYSTEM AND FUEL CELL SYSTEM CONTROL METHOD
    • 燃料电池系统和燃料电池系统控制方法
    • EP3276724A1
    • 2018-01-31
    • EP15887473.5
    • 2015-03-27
    • Nissan Motor Co., Ltd.
    • IKEDA, NobuhisaAOKI, Tetsuya
    • H01M8/04
    • H01M8/04179H01M8/04H01M8/04067H01M8/04119H01M8/04529H01M8/04604H01M8/04708H01M8/04753H01M8/0485H01M8/04858H01M2008/1095H01M2220/20
    • A fuel cell system includes a fuel supply unit that supplies a fuel to electrolyte membrane of fuel cell, an oxidant supply unit that supplies an oxidant to the electrolyte membrane, and an electricity generation control unit that controls electricity generation by the fuel cell by controlling supply of the oxidant by the oxidant supply unit and supply of the fuel by the fuel supply unit. the fuel cell system includes a wet/dry state detection unit configured to detect a wet/dry state of the electrolyte membrane, a flow rate adjustment unit configured to adjust a flow rate of the fuel supplied to the fuel cell by the fuel supply unit; and a temperature adjustment unit configured to adjust a temperature of the oxidant supplied to the fuel cell by the oxidant supply unit. when reducing an amount of water in the electrolyte membrane in accordance with a signal output from the wet/dry state detection unit, the electricity generation control unit is configured to reduce the flow rate of the fuel, and increase the temperature of the oxidant in accordance with the signal from the wet/dry state detection unit, compared with when increasing the amount of water in the electrolyte membrane.
    • 一种燃料电池系统包括:燃料供应单元,其将燃料供应到燃料电池的电解质膜;氧化剂供应单元,其向电解质膜供应氧化剂;以及发电控制单元,其通过控制供应来控制燃料电池的发电 由氧化剂供应单元供应氧化剂并由燃料供应单元供应燃料。 所述燃料电池系统包括:湿/干状态检测单元,构造成检测所述电解质膜的湿/干状态;流量调节单元,构造成调节由所述燃料供应单元供应到所述燃料电池的所述燃料的流量; 以及温度调节单元,被配置为调节通过氧化剂供应单元供应到燃料电池的氧化剂的温度。 当根据从干湿状态检测单元输出的信号来减少电解质膜中的水量时,发电控制单元被配置为减小燃料的流量,并且根据湿度 与来自湿/干状态检测单元的信号相比,增加电解质膜中的水量。
    • 12. 发明公开
    • FUEL CELL STATE ESTIMATION DEVICE, STATE ESTIMATION METHOD, AND FUEL CELL SYSTEM
    • 燃料电池状态估计装置,状态估计方法和燃料电池系统
    • EP3214683A1
    • 2017-09-06
    • EP14904992.6
    • 2014-10-30
    • NISSAN MOTOR CO., LTD.
    • AOKI, Tetsuya
    • H01M8/04G01N27/02H01M8/10
    • G01R31/3648G01N27/02G01R31/389H01M8/04649H01M8/04679H01M2008/1095H01M2250/20Y02T90/32
    • A state estimation device for a fuel cell for generating power upon receiving the supply of anode gas and cathode gas, comprising: an internal impedance measurement unit configured to measure an internal impedance of the fuel cell on the basis of an alternating-current signal of a predetermined frequency output from the fuel cell; a state quantity preliminary estimation value calculation unit configured to calculate a first preliminary estimation value for a state quantity of an electrode obtained from a real component of a measurement value of the internal impedance and a second preliminary estimation value for the state quantity of the electrode obtained from an imaginary component of the measurement value of the internal impedance; and a state quantity final estimation value determination unit configured to determine a final estimation value of the state quantity of the electrode on the basis of the calculated first and second preliminary estimation values.
    • 1.一种燃料电池的状态推定装置,其特征在于,在接受阳极气体和阴极气体的供给而发电的情况下,具备:内部阻抗测定单元,基于交流信号来测定燃料电池的内部阻抗 从燃料电池输出的预定频率; 状态量初步估计值计算单元,被配置为计算根据内部阻抗的测量值的实分量获得的电极的状态量的第一初步估计值和针对获得的电极的状态量的第二初步估计值 来自内部阻抗的测量值的虚部; 以及状态量最终估计值确定单元,被配置为基于计算出的第一和第二初步估计值来确定电极的状态量的最终估计值。
    • 13. 发明公开
    • IMPEDANCE MEASUREMENT DEVICE AND IMPEDANCE MEASUREMENT METHOD
    • 阻抗测量装置和阻抗测量方法
    • EP3124987A1
    • 2017-02-01
    • EP14887371.4
    • 2014-03-26
    • NISSAN MOTOR CO., LTD.
    • SAKAI, MasanobuMATSUMOTO, MichihikoAOKI, Tetsuya
    • G01R31/36G01R27/02H01M10/48H02J7/00
    • G01R31/3662G01R27/02G01R31/3648H01M8/04649H01M2250/20H02J7/00Y02T90/32
    • An impedance measuring device includes power supply means configured to output an alternating current to a positive electrode and a negative electrode of a laminated battery and detection means configured to detect at least one of an alternating-current potential difference between the positive electrode and an intermediate point of the laminated battery and an alternating-current potential difference between the negative electrode and the intermediate point of the laminated battery. The impedance measuring device includes computation means configured to compute an impedance of the laminated battery on the basis of the alternating-current potential difference detected by the detection means and the alternating current output from the power supply means, and an element having an impedance of a prescribed value necessary to calculate a measurement error of the impedance. The impedance measuring device includes switch means configured to alternately switch a battery connection state for connecting the power supply means and the detection means to the laminated battery and an element connection state for cutting off connection to the laminated battery and connecting the power supply means and the detection means to the element. The computation means computes an impedance of the element and diagnoses a measurement state of the laminated battery or corrects the impedance of the laminated battery when the switch means is switched to the element connection state.
    • 本发明提供一种阻抗测定装置,其具备:向层叠型电池的正极和负极输出交流电流的电源单元;以及检测正极和中间点的交流电位差中的至少一方的检测单元 以及叠层电池的负极和中间点之间的交流电位差。 阻抗测量装置包括计算装置,该计算装置被配置为基于由检测装置检测的交流电势差和从电源装置输出的交流电流来计算层压电池的阻抗,以及具有 计算阻抗的测量误差所需的规定值。 阻抗测量装置包括:切换装置,用于将用于连接电源装置和检测装置的电池连接状态交替地切换到叠层电池;以及元件连接状态,用于切断与叠层电池的连接,并且连接电源装置和 检测手段的元素。 计算装置计算元件的阻抗并诊断层压电池的测量状态或者当开关装置切换到元件连接状态时校正层压电池的阻抗。
    • 14. 发明公开
    • IMPEDANCE-MEASURING DEVICE AND METHOD FOR CONTROLLING IMPEDANCE-MEASURING DEVICE
    • 阻抗测量装置和方法,用于控制阻抗测量装置
    • EP3109652A1
    • 2016-12-28
    • EP14883410.4
    • 2014-02-19
    • NISSAN MOTOR CO., LTD.
    • SAKAI, MasanobuAOKI, TetsuyaNISHIMURA, HidetakaSATO, MasashiMATSUMOTO, Michihiko
    • G01R31/36G01R27/02
    • G01R31/3662G01R31/3651G01R31/3658
    • An impedance measuring device outputs an alternating current of a prescribed frequency to a positive electrode terminal and a negative electrode terminal of the laminated type battery. The impedance measuring device detects an alternating-current potential difference between the positive electrode terminal and an intermediate-point terminal, and an alternating-current potential difference between the negative electrode terminal and the intermediate-point terminal. The impedance measuring device adjusts an amplitude of the alternating current such that the alternating-current potential difference between the positive electrode terminal and the intermediate-point terminal, and the alternating-current potential difference between the negative electrode terminal and the intermediate-point terminal coincide. The impedance measuring device computes an impedance of the laminated type battery on the basis of the alternating current adjusted and the alternating-current potential difference. On the a phase difference between an alternating-current potential generated at the positive electrode terminal and an alternating-current potential generated at the negative electrode terminal, or a parameter related to the phase difference, the impedance measuring device performs any one process of: a diagnosis process for diagnosing whether or not a measurement state is defective; a cancellation process for discarding a measurement result; and a hold process for fixing the measurement result at a prescribed value.
    • 16. 发明公开
    • FUEL CELL SYSTEM
    • BRENNSTOFFZELLENSYSTEM
    • EP2683009A1
    • 2014-01-08
    • EP12752335.5
    • 2012-02-23
    • Nissan Motor Co., Ltd
    • AOKI, Tetsuya
    • H01M8/04
    • H01M8/04291H01M8/04119H01M8/04529H01M8/04641H01M8/04753H01M8/0485H01M2008/1095H01M2250/20Y02T90/32
    • A fuel cell system for generating power by supplying a reaction gas to a fuel cell includes a wet state detection unit configured to detect a wet state of an electrolyte membrane of the fuel cell, a steady time target wet state setting unit configured to set a steady time target wet state of the electrolyte membrane during a steady operation of the fuel cell system based on an operating condition of the fuel cell system, and a transient time target wet state setting unit configured to set a transient time target wet state so that the wet state of the electrolyte membrane gradually changes from a wet state detected before a transient operation starts to the steady time target wet state during the transient operation in which the operating condition of the fuel cell system changes.
    • 一种用于通过向燃料电池供应反应气体来发电的燃料电池系统包括:湿状态检测单元,被配置为检测燃料电池的电解质膜的湿态;稳定时间目标湿态设定单元, 基于燃料电池系统的运行状态在燃料电池系统的稳定运行期间的电解质膜的时间目标湿润状态,以及瞬态时间目标湿态设定单元,其被配置为设定瞬时时间目标湿润状态,使得湿 电解质膜的状态在燃料电池系统的运转状态发生变化的瞬态动作期间,从暂态运转开始前的湿状态到稳定时间目标湿润状态,逐渐变化。