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Device And Method For Controlling Operation Of Fuel Cell System

A fuel cell system and fuel cell technology, applied in the direction of fuel cells, fuel cell additives, fuel cell control, etc., can solve the problems of reducing usability, not having, and unable to ensure the normal operation performance of acceleration/overtaking characteristics, and achieve The effect of reducing performance deviation

Active Publication Date: 2017-01-04
HYUNDAI MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As described above, when the output of the fuel cell stack decreases and the deviation between cells increases, depending on the operating conditions of the fuel cell system, normal operation including the acceleration / overtaking characteristics of the fuel cell vehicle cannot be ensured and adjusted due to output limitations, etc. performance
[0010] However, typical fuel cell systems have no specific alternatives for solving this problem other than the general method of stopping the operation of the fuel cell system and performing a separate aftertreatment such as replacement of components in the fuel cell system or A performance recovery process for reversible performance degradation of fuel cells, and there is a problem that this process requires an additional process of disassembling and reassembling the fuel cell system, thus reducing workability

Method used

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  • Device And Method For Controlling Operation Of Fuel Cell System
  • Device And Method For Controlling Operation Of Fuel Cell System
  • Device And Method For Controlling Operation Of Fuel Cell System

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Embodiment Construction

[0029]It should be understood that the term "vehicle" or "vehicular" or other similar terms as used herein includes motor vehicles in general, for example, passenger vehicles including sport utility vehicles (SUVs), buses, trucks, commercial vehicles of all kinds, including various Ships and marine craft, aircraft, etc., and include hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen vehicles, and other alternative fuel vehicles (eg, fuels derived from sources other than petroleum). A hybrid vehicle, as referred to in this article, is a vehicle that has two or more sources of power, such as a vehicle that is both gasoline-powered and electric-powered.

[0030] Although the exemplary embodiment has been described as using multiple units to perform the exemplary process, it is understood that the exemplary process may also be performed by one or more modules. In addition, it should be understood that the term "controller / control unit" refers to a hardw...

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Abstract

A device and a method are provided for controlling the operation of a fuel cell system to improve a momentary output of a fuel cell system and decrease a performance deviation between fuel cells. The device momentarily reduces a cell voltage of a fuel cell or changes a fuel cell system to a state close to a shut-down, return the fuel cell system to a normal condition again, and then enable the fuel cell system to be operated normally by applying the saw-tooth phenomenon and the hysteresis phenomenon. Thus, a momentary output of the fuel cell system is improved to performance of a highest output level or more expressible in a previous state and a performance deviation between fuel cells is decreased.

Description

technical field [0001] The present invention relates to an apparatus and method for controlling the operation of a fuel cell system, and more particularly, to an apparatus and method for operating a fuel cell system to increase instantaneous power of the fuel cell system and reduce performance variation among fuel cells. Background technique [0002] A fuel cell system includes a fuel cell stack that generates electric power, a fuel supply system that supplies fuel (for example, hydrogen) to the fuel cell stack, an air supply that supplies oxygen in air (which is an oxidant required for electrochemical reactions) to the fuel cell stack systems, thermal and water management systems that regulate the temperature of the fuel cell stack, etc. [0003] Therefore, when hydrogen as fuel is supplied to the anode of the fuel cell stack, and air as an oxidant is supplied to the cathode, the supplied hydrogen is separated into hydrogen ions and electrons by an oxidation reaction of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04298H01M8/04746H01M8/04694H01M8/04858
CPCH01M8/04298H01M8/04694H01M8/04746H01M8/04858H01M8/04753B60L3/0053B60L58/32H01M8/0488H01M8/04559H01M8/04953H01M8/04992H01M2250/20Y02T90/40Y02E60/50
Inventor 任世埈
Owner HYUNDAI MOTOR CO LTD
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