-
公开(公告)号：US10218018B2
公开(公告)日：2019-02-26
申请号：US15144936
申请日：2016-05-03
IPC分类号： H01M8/04992 , H01M8/04537 , H01M8/04746 , H01M8/04291 , H01M8/04858
摘要： A fuel cell stack includes a plurality of cell groups and a controller wherein each cell group comprises a plurality of fuel cells and a group sensor which measures one or more electrical characteristics of the respective cell group. The controller comprises one or more processors and memory and is communicatively coupled to each group sensor. The one or more processors execute machine readable instructions to compare a measured electrical characteristic of each cell group to one or more thresholds stored in memory, and indicate the need for diagnostics of the fuel cell stack when the comparison indicates a non-systemic event.
-
公开(公告)号：US20170324106A1
公开(公告)日：2017-11-09
申请号：US15144936
申请日：2016-05-03
IPC分类号： H01M8/04992 , H01M8/04537 , H01M8/04746
CPC分类号： H01M8/04992 , H01M8/04291 , H01M8/04559 , H01M8/04649 , H01M8/04753 , H01M8/04952 , H01M2250/20 , Y02T90/32
摘要： A fuel cell stack includes a plurality of cell groups and a controller wherein each cell group comprises a plurality of fuel cells and a group sensor which measures one or more electrical characteristics of the respective cell group. The controller comprises one or more processors and memory and is communicatively coupled to each group sensor. The one or more processors execute machine readable instructions to compare a measured electrical characteristic of each cell group to one or more thresholds stored in memory, and indicate the need for diagnostics of the fuel cell stack when the comparison indicates a non-systemic event.
-
公开(公告)号：US10439239B2
公开(公告)日：2019-10-08
申请号：US14742785
申请日：2015-06-18
IPC分类号： H01M8/04223 , H01M8/04537 , H01M8/04955 , H01M8/0438 , H01M8/04664 , H01M8/04303
摘要： A fuel cell stack, a method of operating a fuel cell stack and a fuel cell system. In one particular form, shutting down the stack upon detection of a leakage of fuel either within the stack or from the stack involves depressurizing and uniform consumption of hydrogen by catalytic consumption in the cathode of all cells. Upon consumption of oxygen in the cathode portion of the stack by chemical reaction, the remaining unreacted nitrogen from the air acts as an inerting fluid. After an indication of reaction cessation is established, at least some of the inerting fluid is conveyed from the cathode portion to the anode portion. One or more of a bleed valve, backpressure valve and bypass valve are manipulated to promote the anode portion depressurization, cathode portion inerting and subsequent conveyance of the inerting fluid to the stack anode portion.
-
公开(公告)号：US20160372767A1
公开(公告)日：2016-12-22
申请号：US14742785
申请日：2015-06-18
IPC分类号： H01M8/04
摘要： A fuel cell stack, a method of operating a fuel cell stack and a fuel cell system. In one particular form, shutting down the stack upon detection of a leakage of fuel either within the stack or from the stack involves depressurizing and uniform consumption of hydrogen by catalytic consumption in the cathode of all cells. Upon consumption of oxygen in the cathode portion of the stack by chemical reaction, the remaining unreacted nitrogen from the air acts as an inerting fluid. After an indication of reaction cessation is established, at least some of the inerting fluid is conveyed from the cathode portion to the anode portion. One or more of a bleed valve, backpressure valve and bypass valve are manipulated to promote the anode portion depressurization, cathode portion inerting and subsequent conveyance of the inerting fluid to the stack anode portion.
摘要翻译： 燃料电池堆，操作燃料电池堆的方法和燃料电池系统。 在一种特定形式中，在检测到堆叠或堆叠内的燃料泄漏的情况下关闭堆叠包括通过所有电池的阴极中的催化消耗来降低氢气并使其均匀消耗。 当通过化学反应在堆叠的阴极部分中消耗氧时，来自空气的剩余的未反应的氮作为惰性流体。 在建立反应停止的指示之后，至少一些惰性流体从阴极部分输送到阳极部分。 操纵排气阀，背压阀和旁通阀中的一个或多个以促进阳极部分减压，阴极部分惰化和随后将惰性流体输送到堆叠阳极部分。
-
5.发明申请Transient Inlet Relative Humidity Estimation Via Adaptive Cathode Humidification Unit Model And High Frequency Resistance 有权通过自适应阴极加湿单元模型和高频阻抗的瞬态入口相对湿度估计公开(公告)号：US20140199605A1
公开(公告)日：2014-07-17
申请号：US13741803
申请日：2013-01-15
IPC分类号： H01M8/04
CPC分类号： H01M8/04126 , H01M8/04305 , H01M8/04649 , H01M8/04835 , H01M2008/1095
摘要： An apparatus and method to determine the relative humidity of a fuel cell system. A controller is cooperative with a first device and a second device to receive a valve signal and a high frequency resistance value. The controller controls the relative humidity of a fuel cell stack based on the estimation of the relative humidity of the fuel cell stack based on one or more algorithms. The controller modifies the relative humidity of the fuel cell stack through changes in the position of a valve based on at least one of the valve signal and the high frequency resistance value. In one form, the relative humidity of the fuel cell system is determined without the need of a humidity sensor.
摘要翻译： 一种确定燃料电池系统的相对湿度的装置和方法。 控制器与第一装置和第二装置协作以接收阀信号和高频电阻值。 基于一种或多种算法，基于燃料电池堆的相对湿度的估计，控制器控制燃料电池堆的相对湿度。 控制器基于阀信号和高频电阻值中的至少一个，通过阀的位置的变化来改变燃料电池堆的相对湿度。 在一种形式中，确定燃料电池系统的相对湿度，而不需要湿度传感器。
-
公开(公告)号：US10971745B2
公开(公告)日：2021-04-06
申请号：US15866599
申请日：2018-01-10
发明人： Manish Sinha , Jingxin Zhang , Andrew J. Maslyn
IPC分类号： H01M8/04664 , H01M8/04992 , H01M8/04537 , H01M8/04746 , H01M8/04858 , B60L11/18 , H01M8/0432 , H01M8/04223 , B60L58/30
摘要： A fuel cell reversal event is diagnosed by integrating current density via a controller in response to determine an accumulated charge density. The controller executes a control action when the accumulated charge density exceeds a threshold, including recording a diagnostic code indicative of event severity. The control action may include continuing stack operation at reduced power capability when the accumulated charge density exceeds a first threshold and shutting off the stack when the accumulated charge density exceeds a higher second threshold. The event may be detected by calculating a voltage difference between an average and a minimum cell voltage, and then determining if the difference exceeds a voltage difference threshold. The charge density thresholds may be adjusted based on age, state of health, and/or temperature of the fuel cell or stack. A fuel cell system includes the stack and controller.
-
7.发明申请公开(公告)号：US20140120434A1
公开(公告)日：2014-05-01
申请号：US14147362
申请日：2014-01-03
发明人： Manish Sinha , Derek R. Lebzelter , John C. Fagley , Megan J. Quick , Rodney J. Rhodes , Sergio E. Garcia , Victor W. Logan
CPC分类号： H01M8/04634 , G01R31/3662 , H01M8/04
摘要： A method for determining membrane humidification by determining the membrane protonic resistance of a fuel cell stack at humidified conditions, and normalizing the base resistance of the fuel cell stack against the base resistance of a reference fuel cell stack.
摘要翻译： 一种用于通过在加湿条件下确定燃料电池堆的膜质子电阻并根据参考燃料电池堆的基极电阻使燃料电池堆的基极电阻标准化来确定膜加湿的方法。
-
公开(公告)号：US11735751B1
公开(公告)日：2023-08-22
申请号：US17699485
申请日：2022-03-21
发明人： Xiaofeng Wang , Sergio E. Garcia , Chad Dubois , Manish Sinha
IPC分类号： H01M8/04664 , H01M8/04119
CPC分类号： H01M8/04179 , H01M8/04664 , H01M2220/20
摘要： Presented are intelligent fuel cell systems (FCS) with logic for evacuating water from anode headers of a fuel cell stack, methods for making/using such systems, and vehicles equipped with such systems. A method of operating an FCS includes a system controller confirming the FCS is running and, once confirmed, receiving a bleed request to remove exhaust gas from exhaust output by the anode. Responsive to the bleed request, the controller determines a total bleed valve use (TBVU) indicating prior bleed requests completed by an anode bleed valve, and thereafter determines if the TBVU is less than a maximum bleed valve use (MBVU). If so, the controller responsively commands the bleed valve to bleed the exhaust gas from the anode exhaust. If TBVU is not less than MBVU, the controller commands a header drain valve to bleed the exhaust gas from the anode exhaust and drain water from the anode header.
-
公开(公告)号：US10050288B2
公开(公告)日：2018-08-14
申请号：US14589777
申请日：2015-01-05
发明人： Stephen D. Pace , Jun Cai , Manish Sinha
IPC分类号： H01M8/04664 , H01M8/0438 , H01M8/04746 , H01M8/04858 , H01M8/04089
摘要： Systems and methods for detecting and validating a leak in a fuel cell system are presented. In certain embodiments, various fuel cell stack set points may be adjusted such that adequate H2 flow data may be obtained to identify and validate an H2 leak and/or a location of such a leak. In some embodiments, H2 flow data may be obtained by adjusting certain fuel cell system operating parameters under a variety of operating conditions and/or modes and measuring flow data under such various operational conditions.
-
公开(公告)号：US09853312B2
公开(公告)日：2017-12-26
申请号：US14147362
申请日：2014-01-03
发明人： Manish Sinha , Derek R. Lebzelter , John C. Fagley , Megan J. Quick , Rodney J. Rhodes , Sergio E. Garcia , Victor W. Logan
IPC分类号： H01M8/04 , H01M8/04537 , G01R31/36
CPC分类号： H01M8/04634 , G01R31/3662 , H01M8/04
摘要： A method for determining membrane humidification by determining the membrane protonic resistance of a fuel cell stack at humidified conditions, and normalizing the base resistance of the fuel cell stack against the base resistance of a reference fuel cell stack.
-
-
-
-
-
-
-
-
-
搜索结果
26 条记录 (耗时 0.027 秒)
