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US20120231358 DIRECT OXIDATION FUEL CELL SYSTEM  
A direct oxidation fuel cell system includes a fuel cell and a cooling device. An anode-side separator of the fuel cell has a fuel flow channel in the face in contact with the anode. The direction...
US20140011108 FUEL CELL POWER PLANT CONTROL  
An example method of controlling a fuel cell power plant based on provided power includes selectively varying an electrical resistance of the variable resistive device responsive to at least one...
US20090110970 FUEL CELL SYSTEM, CONTROL METHOD THEREFOR, AND MOVABLE BODY  
A fuel cell system has produced water amount detection means that detects the amount of water produced in the fuel cell during low-efficiency operation of the system and gas supply limitation...
US20120225366 IDENTIFYING FUEL CELL DEFECTS  
A test system for testing a unit such as multiple solid oxide fuel cells. The test system includes a thermal test chamber in which a non-contact electrostatic voltage probe is mounted to scan the...
US20120045705 FUEL CELL SYSTEM  
A fuel cell system includes a first power generation module configured to have a power generation assembly including a catalyst, an anode-side non-power generation structure placed in contact with...
US20060172164 Fuel cell and fuel cell system  
A fuel cell system has a fuel cell stack, a controller, and a cooling water channel. The controller executes the control for the temperature of cooling water flowing through the cooling water...
US20120321976 CONTROLLING FUEL CELL  
A fuel cell system has a fuel cell that includes at least one cell with an electrolyte membrane, an index value acquirer and a controller. The index value acquirer obtains a temperature index...
US20060021812 Fuel cell vehicle and control method thereof  
A fuel cell vehicle includes a fuel cell, a rotating load, a energy storage, a contactor, a DC-DC converter, and a control unit. When regeneration by the energy storage is performed, the DC-DC...
US20100047635 Hydrating A Reactant Flow Of An Electrochemical Stack  
A technique includes communicating a reactant stream into a reactant plenum passageway of an electrochemical cell stack. Inside the reactant plenum passageway, water is injected into the reactant...
US20130216927 Methods and Systems for Fuel Cell Stack Sintering and Conditioning  
Systems and methods for sintering and conditioning fuel cell stacks utilizing channel guides, baffles, and internal compression systems are provided. Sintering and conditioning may be performed...
US20090186245 RACKED POWER SUPPLY VENTILATION  
A ventilation system for a fuel cell power module is provided. The ventilation system includes a ventilation enclosure for evacuating fluids from the fuel cell power module, the ventilation...
US20070065695 Coolant flow estimation for the thermal loop of a fuel cell system using stack loss power  
A thermal sub-system for a fuel cell system that calculates a desired volume flow or mass flow of a cooling fluid pumped through a fuel cell stack solely on thermal stack power loss and cooling...
US20140065503 COOLING SYSTEM FOR A FUEL CELL  
The invention relates to a cooling system for a fuel cell, comprising a main heat-transfer-fluid circuit including a circulation pump (6) and a heat exchanger (8) with the exterior, which feed an...
US20130260266 FAST MEA BREAK-IN AND VOLTAGE RECOVERY  
A system and method for breaking-in and humidifying membrane-electrode-assemblies (MEAs) in a fuel cell stack. The method includes performing voltage cycling and humidification of the MEAs in the...
US20150188167 APPARATUS FOR CONTROLLING FUEL CELL HEATING VALUE  
Disclosed herein is an apparatus for controlling a fuel cell heating value. The apparatus includes stack condition sensors which senses conditions of respective fuel cell stacks, and a control...
US20080131739 Solutions for solid oxide fuel cell seal failures  
A solid oxide fuel cell that is resistant to seal delamination is disclosed. The solid oxide fuel cell comprises, either individually or in combination, a solid electrically non-conductive frame,...
US20060166058 Fuel cell system ensuring stability of operation  
A fuel cell system designed to supply non- or low-humidified air to a fuel cell stack and ensure the stability of operation thereof. The system works to monitor operating conditions of the fuel...
US20140089055 Fuel Cell Fleet Optimization  
A fuel cell fleet has a plurality of fuel cell systems each connected to a data server. The data server may be configured to obtain operational data from of the plurality of fuel cell systems. An...
US20140186734 DIAGNOSTIC AND HEAT MANAGEMENT SYSTEM FOR FUEL CELL STACK  
A diagnostic and heat management system for a fuel cell stack is provided herein that includes a diagnostic control analyzer that diagnoses and analyzes a state of the fuel cell stack by measuring...
US20140120440 COOLANT FLOW PULSING IN A FUEL CELL SYSTEM  
Systems and methods to control the delivery of coolant to a coolant loop within a vehicular fuel cell system. During periods of low power output from one or more fuel cell stacks, operation of a...
US20110183223 FUEL CELL SYSTEM AND METHOD OF CONTROLLING FUEL CELL SYSTEM  
At a start of a fuel cell, discharge of a generated water is ended at a proper timing. Supply of the reactive gas is started at a first flowrate. Then, in a case that the generated water retained...
US20120270128 FUEL CELL POWER GENERATION SYSTEM  
An electric power generator is particularly suitable for providing back-up power to sites with multiple power requirements. This generator comprises a rack having multiple module bays; at least...
US20130164644 SYSTEM AND METHOD FOR CONTROLLING PRESSURE OSCILLATION IN ANODE OF FUEL CELL STACK  
Disclosed is a system and method for controlling pressure oscillation in an anode of a fuel cell stack. In particular, an electronic control unit is configured to determine operation information...
US20110039177 FUEL CELL SYSTEM  
The fuel cell system includes a fuel cell stack, a fuel cell temperature sensor for measuring the internal temperature of the fuel cell, a voltage sensor for measuring the power generation voltage...
US20110020720 DEVICE FOR CONTROLLING A POWER SUPPLY WITH DC DC SPLITTING OF THE TYPE INCLUDING N INTERLACED PATHS  
In a power supply with n interlaced conversion cells, a control device activates m paths out of n paths, 1≦m≦n, as a function of the power or of the current handled by the power supply. The cell...
US20110008696 Grid frequency-responsive solid oxide fuel cell system  
A method for operating a fuel cell system connected to a power grid includes determining a frequency of the power grid, and adjusting the operation of the fuel cell system based on the determined...
US20130084513 ENERGY ADJUSTING METHOD  
An energy adjusting method for controlling output energy of a fuel cell group, wherein at least one of the fuel cell group and a secondary battery group drives a load is disclosed. The voltage of...
US20140220465 Method For The Detection Of Fuel Cell System Short Circuits  
An apparatus and method to detect a short circuit event in a fuel cell system of a vehicle. The detection relies on three existing sensors within the fuel cell system, two current sensors and a...
US20130034788 INJECTOR OPENING DELAY DIAGNOSTIC STRATEGY  
A system and method for detecting an intermittent failure of an injector that injects hydrogen gas fuel into the anode side of a fuel cell stack in a fuel cell system. The method includes...
US20100098979 FUEL CELL SYSTEM AND MOVING BODY USING THE FUEL CELL SYSTEM  
A fuel cell system includes a coolant pump for pumping a coolant, the coolant pump being provided in a coolant pipe that conveys the coolant to a fuel cell; a coolant heating device for heating...
US20150099204 REGULATION OF A FUEL CELL ASSEMBLY  
A fuel cell assembly according to an exemplary aspect of the present disclosure includes, among other things, a first fuel cell stack in series with a variable resistor and a second fuel cell...
US20140193732 Method of Controlling and Maximizing the Electric Efficiency and the Power Output of a Fuel Cell  
According to a first aspect, the present invention relates to a method of controlling a fuel cell, comprising a step of controlling the fuel cell electric efficiency per unit of active surface...
US20120135327 MONITORING THE OPERATIONAL STATE OF A FUEL CELL STACK  
A technique is described herein for monitoring the operational state of a fuel cell stack by the detection of nonlinearity in such a manner that an external test signal for frequency response is...
US20110189571 FUEL CELL SYSTEM AND METHOD OF CONTROLLING FUEL GENERATING REACTION AND COMPUTER  
A method of controlling a fuel generating reaction of a fuel cell includes: a. providing a first reactant; b. activating the first reactant to generate fuel to the fuel cell; c. when a...
US20070059568 Electronic equipment with cell-power supply unit  
Fuel concentration near a power generator of a DMFC is adjusted by decreasing current taken from the DMFC when the concentration near the power generator of the DMFC is higher than an optimum...
US20130095405 FUEL CELL SYSTEM AND CONTROL METHOD THEREFOR  
A fuel cell system includes an accumulated current value measuring unit. The accumulated current value measuring unit measures an accumulated current value by time integration of current output...
US20140272652 SYSTEMS AND METHODS FOR PREDICTING POLARIZATION CURVES IN A FUEL CELL SYSTEM  
The present disclosure relates to systems and methods that may be used to predict a performance metric of a fuel cell. A system consistent with the present disclosure may include sensors in...
US20060073363 Fuel cell system, and failure diagnosing apparatus of the same  
A fuel cell system includes: 1) a fuel gas circulating system; 2) a first pressure sensor for sensing a fuel cell inlet sensed pressure; 3) a second pressure sensor for sensing a fuel gas...
US20110111317 FUEL CELL SYSTEM  
It is possible to prevent excessive power generation of a fuel cell when a failure has occurred. When a start signal is input, a fuel cell system sets an open end voltage of the fuel cell as an...
US20140162158 FUEL CELL BYPASS DIODE STRUCTURES AND ATTACHMENT METHODS  
A fuel cell system includes a fuel cell stack which includes a plurality of fuel cells contacted in series by a plurality of interconnects. The various embodiments provide systems and methods for...
US20120270124 FUEL CELL SYSTEM AND OPERATING METHOD FOR FUEL CELL SYSTEM  
A fuel cell system includes: a fuel cell that generates power using an oxidant gas and a fuel gas; estimating means for estimating an electric resistance of the fuel cell in accordance with a...
US20130059220 FUEL CELL SYSTEM AND DRIVING METHOD THEREOF  
A fuel cell system for supplying power to a load includes: a plurality of fuel cell stacks; a plurality of DC/DC converters coupled to the plurality of fuel cell stacks; and a stack controller for...
US20120178007 FUEL CELL CONTROL METHOD AND FUEL CELL CONTROLLER  
Embodiments of the present invention disclose a fuel cell control method. The method includes: obtaining a current output power of a fuel cell; obtaining a current inlet-outlet temperature...
US20060199051 Combined heat and power system  
There is described a combined heat and power, or cogeneration, system combining a fuel cell for generating electrical power with a thermal power source, the system comprising: a fuel processor for...
US20070190388 LIQUID TANK USING FUEL CELL SYSTEM AND LIQUID LEVEL DETECTION DEVICE  
A liquid tank capable of detecting liquid level when the tank is rotated. The liquid tank includes an airtight vessel to store the liquid; and at least two electrodes installed inside the airtight...
US20130004870 FUEL CELL SYSTEM AND METHOD FOR CONTROLLING ELECTRIC CURRENT OF SAME  
In a fuel cell system, when an electric current drawn from fuel cells is controlled based on a target power generation value, an upper limit of the electric current is optimally set to make...
US20130040219 FUEL CELL SYSTEM  
A fuel cell system includes a fuel cell, an operation controller and an air-conditioning mechanism. In response to a heating request for the air-conditioning mechanism during ordinary operation...
US20120196197 FUEL CELL SYSTEM AND METHOD FOR CONTROLLING THE SAME  
A method for controlling a fuel cell system includes following steps. It is determined whether an output voltage of a fuel cell stack in the fuel cell system is greater than or equal to a...
US20130189596 FUEL CELL SYSTEM, METHOD AND PROGRAM OF DETERMINING CAUSE OF NEGATIVE VOLTAGE, AND STORAGE MEDIUM STORING PROGRAM  
A fuel cell system includes a fuel cell; a voltage measuring portion that measures a voltage of the fuel cell; an electric current adjusting portion that adjusts an electric current flowing in the...
US20110223505 ADAPTIVE METHOD FOR CONVERSION OF EXTERNAL POWER REQUEST TO CURRENT SETPOINT TO A FUEL CELL SYSTEM BASED ON STACK PERFORMANCE  
A system and method for converting a fuel cell stack power request signal to a stack current set-point that considers stack performance parameters. The method includes obtaining a power-current...

Matches 1 - 50 out of 386 1 2 3 4 5 6 7 8 >