-
公开(公告)号：US20230187667A1
公开(公告)日：2023-06-15
申请号：US18080438
申请日：2022-12-13
发明人： Mi Sun Kim , Dong Hun Lee
IPC分类号： H01M8/04664 , H01M8/0438 , H01M8/04089 , H01M8/04291 , H01M8/04082
CPC分类号： H01M8/04686 , H01M8/04388 , H01M8/04104 , H01M8/04291 , H01M8/04201 , H01M2250/20
摘要： A method for diagnosing valve failure of a fuel cell system is proposed. The method comprises determining failure diagnosis target pressure from atmospheric pressure that is a real-time sensing value of an atmospheric sensor by means of a controller, controlling opening of a fuel supply valve installed in a hydrogen supply line such that stack anode-side pressure reaches the determined failure diagnosis target pressure by means of the controller, performing control for opening an integrated discharge valve installed at a water trap when the stack anode-side pressure reaches the failure diagnosis target pressure, counting a time passed after the opening, and determining whether the integrated discharge valve fails based on the time, the stack anode-side pressure, and the atmospheric pressure.
-
公开(公告)号：US20230074636A1
公开(公告)日：2023-03-09
申请号：US17876478
申请日：2022-07-28
发明人： Mi Sun Kim , Soon Woo Kwon
IPC分类号： H01M8/04492 , G05D9/12 , G01F22/00 , H01M8/04302 , H01M8/04111 , H01M8/04828 , H01M8/04223 , H01M8/04119
摘要： An apparatus for estimating an amount of condensed water in an anode of a fuel cell system includes: an initial anode water vapor amount calculation unit to calculate an initial amount of water vapor in the anode of a fuel cell upon startup, an anode diffusion amount calculation unit to calculate an amount of H2O diffused from a cathode to the anode, a purge amount calculation unit to calculate an amount of water vapor discharged upon gas purging in the anode, a recirculation amount calculation unit to calculate the amount of water vapor recirculated to the anode, and a condensed water amount determination and water level estimation unit to calculate the actual amount of water vapor in the anode based on values calculated using these units and to calculate the amount of condensed water in a water trap.
-
公开(公告)号：US11631871B2
公开(公告)日：2023-04-18
申请号：US16049009
申请日：2018-07-30
发明人： Mi Sun Kim , Dae Jong Kim
IPC分类号： H01M8/04302 , H01M8/04537 , H01M8/0432 , H01M8/04225 , H02J7/00 , H01M8/04089 , H01M8/04746 , H01M10/42 , H01M16/00 , F04B49/20 , F04B49/22 , H01M10/44 , B60L58/31 , F04B35/04
摘要： A startup control method for a fuel cell is provided. The method includes calculating available power of a high-voltage battery when a startup of the fuel cell is requested. An air compressor is then driven based on a calculated magnitude of the available power of the high-voltage battery and a low-voltage battery is charged with the power of the high-voltage battery after the driving of the air compressor is completed.
-
公开(公告)号：US20190288307A1
公开(公告)日：2019-09-19
申请号：US16049009
申请日：2018-07-30
发明人： Mi Sun Kim , Dae Jong Kim
IPC分类号： H01M8/04225 , H02J7/00 , H01M8/04089 , H01M8/04746 , H01M10/42 , H01M10/44 , H01M16/00 , F04B49/20 , F04B49/22 , B60L11/18
摘要： A startup control method for a fuel cell is provided. The method includes calculating available power of a high-voltage battery when a startup of the fuel cell is requested. An air compressor is then driven based on a calculated magnitude of the available power of the high-voltage battery and a low-voltage battery is charged with the power of the high-voltage battery after the driving of the air compressor is completed.
-
-
-
搜索结果
4 条记录 (耗时 0.026 秒)
