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    FUEL CELL SYSTEM AND CONTROL METHOD OF FUEL CELL SYSTEM
    1.
    发明申请
    FUEL CELL SYSTEM AND CONTROL METHOD OF FUEL CELL SYSTEM 有权

    公开(公告)号：US20210202967A1

    公开(公告)日：2021-07-01

    申请号：US17112335

    申请日：2020-12-04

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Tomoya OGAWA ,  Junichi MATSUO ,  Tatsuya FUKAMI

    IPC分类号： H01M8/04223 ,  H01M16/00 ,  H01M8/04828 ,  H01M8/0432 ,  H01M10/44 ,  H01M10/0525 ,  H01M12/08 ,  H01M8/04119 ,  H02J7/34

    摘要： A fuel cell system includes a fuel cell, a gas supply unit, an electric power storage device, a remaining capacity monitor, and a control unit. The control unit determines whether the temperature conditions are met, wherein the low temperature conditions include temperature related to a state of the fuel cell being equal to or lower than a predetermined threshold value set, when the control unit determines that the low temperature conditions are met, the control unit executes the purging process so as to discharge more of moisture stored in the fuel cell to an outside of the fuel cell, as compared with when the control unit determines that the low temperature conditions are not met, and the control unit executes the charging process with target remaining capacity of the electric power storage device set to a smaller value, as compared with when the control unit determines that the low temperature conditions are not met.

    FUEL CELL SYSTEM
    2.
    发明申请
    FUEL CELL SYSTEM 有权

    公开(公告)号：US20210367246A1

    公开(公告)日：2021-11-25

    申请号：US17198408

    申请日：2021-03-11

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Tomoya OGAWA

    IPC分类号： H01M8/04828 ,  H01M8/04701 ,  B60L58/40 ,  B60L58/34

    摘要： A battery and a load device are connected to a fuel cell stack. Electric power is supplied from the battery to fuel cell auxiliary equipment. A controller of a fuel cell system has stored therein a desired output of the fuel cell stack. The controller predicts auxiliary equipment power consumption, which is the amount of electric power that is consumed by the fuel cell auxiliary equipment for operation of the fuel cell stack, and determines estimated input and output power of the battery. The controller determines a requested output, which is an output requested for the fuel cell stack, based on the predicted auxiliary equipment power consumption and the estimated input and output power. The controller determines an operating point of the fuel cell stack based on the desired output. The load device controls its operation so that the difference between the requested output and the desired output becomes zero.

    FUEL CELL SYSTEM
    3.
    发明申请
    FUEL CELL SYSTEM 审中-公开

    公开(公告)号：US20200243878A1

    公开(公告)日：2020-07-30

    申请号：US16726352

    申请日：2019-12-24

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Keitaro YAMAMORI ,  Tomoya OGAWA ,  Hiroaki MORI

    IPC分类号： H01M8/04089 ,  H01M8/0444 ,  H01M8/04537 ,  H01M8/0438 ,  H01M8/0432 ,  H01M8/04955

    摘要： A fuel cell system includes a fuel cell including a fuel electrode being supplied with fuel gas and an oxidant electrode being supplied with oxidant gas and generating electric power by causing the fuel gas and the oxidant gas to react with each other, a voltmeter measuring an output voltage of the fuel cell, an ammeter measuring an output current of the fuel cell, a restricting valve provided upstream and downstream of an oxidant electrode side of the fuel cell and being opened in a power generation state and being closed in a stopped state or under the oxygen consuming control, and a load control unit controlling a current value of an output current to be output by the fuel cell and, under the oxygen consuming control, controlling the output voltage of the fuel cell such that the output current reduces as the output voltage of the fuel cell increases.

    FUEL CELL SYSTEM AND CONTROL METHOD
    5.
    发明申请
    FUEL CELL SYSTEM AND CONTROL METHOD 审中-公开

    公开(公告)号：US20200328441A1

    公开(公告)日：2020-10-15

    申请号：US16836144

    申请日：2020-03-31

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Tatsuya FUKAMI ,  Junichi MATSUO ,  Tomoya OGAWA

    IPC分类号： H01M8/04828 ,  B60L58/40 ,  B60L58/30 ,  H01M8/04992 ,  H01M8/04858 ,  H01M16/00

    摘要： A fuel cell system includes a fuel cell, a plurality of power consuming devices, a secondary battery, a charge-discharge amount sensor, and a controller configured to control operations of the plurality of power consuming devices. An identification section of the controller is configured to execute a variation process of varying the operation command value of one of the plurality of power consuming devices and, in a second case where an absolute value of a difference between an amount of change in the actual amount of charge and discharge and an amount of change in the estimated amount of charge and discharge before and after execution of the variation process is greater than a second threshold, identify the power consuming device, for which the operation command value is varied, as the device to be identified.