Fuel cell system and moving body
A fuel cell system and fuel cell technology, applied in the direction of fuel cells, fuel cell additives, transportation fuel cell technology, etc., can solve problems such as insufficient supply, failure to maintain target workload, failure to maintain fuel cell power generation status, etc.
Inactive Publication Date: 2011-02-09
TOYOTA JIDOSHA KK
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Problems solved by technology
[0005] However, in such a fuel cell system, the injector ejects the reactant gas every predetermined driving cycle, and if there is gas leakage from the downstream side of the gas supply system in the middle of the driving cycle, the target workload cannot be maintained.
In this case, the supply amount of the reactant gas to the fuel cell is insufficient, and the good power generation state of the fuel cell cannot be maintained.
Method used
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Embodiment Construction
[0062] Next, a fuel cell system according to an embodiment of the present invention will be described in the following order with reference to the drawings. In this embodiment, an example in which the present invention is applied to an on-vehicle power generation system of a fuel cell vehicle (mobile body) will be described. In addition, in each drawing, the same code|symbol is attached|subjected to the same component.
[0063] 1. Overall configuration of the fuel cell system according to the embodiment of the present invention
[0064] 2. Asynchronous injection control of injectors of the fuel cell system
[0065] 3. Modified example of the fuel cell system
[0066] 1. Overall configuration of the fuel cell system according to the embodiment of the present invention
[0067] First, refer to figure 1 The overall configuration of the fuel cell system 1 according to the embodiment of the present invention will be described. In this embodiment, an example in which the presen...
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It is possible to appropriately maintain an amount of a reaction gas supplied to a fuel cell even if supply of the reaction gas during a drive frequency of a valve device has failed. Provided is a fuel cell system (1) including: a fuel cell (10); a gas supply channel (31) for supplying a reaction gas to the fuel cell (10); a valve device (35) arranged in the gas supply channel and driven by a predetermined drive cycle; a control device (4) which controls drive of the valve device (35) so that the reaction gas supplied to the fuel cell (10) is in a target gas state; and a sensor (43) which measures a gas state of the reaction gas at the downstream side of the valve device (35). When it is detected that the difference between the target gas state and the gas state measured by the sensor (43) exceeds a predetermined value, the control device (4) drives the valve device (35) separately from the predetermined drive cycle.
Description
technical field [0001] The present invention relates to a fuel cell system and a mobile body, and particularly relates to a technology for controlling the supply of reactant gas to a fuel cell. Background technique [0002] In recent years, a fuel cell system including a fuel cell that receives supply of reactant gases (fuel gas and oxidizing gas) to generate electricity has been proposed and put into practical use. In such a fuel cell system, there are provided a fuel supply passage for flowing hydrogen supplied from a fuel supply source such as a hydrogen tank to the fuel cell, and an air supply for flowing air in the atmosphere sucked in by a compressor or the like to the fuel cell. flow path. [0003] In order to maintain a good power generation state of the fuel cell, it is very important to detect an abnormality in the supply of reactant gas in the gas supply system such as the fuel supply flow path and the air supply flow path, and to promptly take measures against t...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01M8/10H01M8/04H01M8/00
CPCH01M2250/20Y02T90/32H01M8/04686H01M8/04089Y02E60/50H01M8/04753H01M8/04388H01M8/04141Y02T90/40
Inventor 石河统将
Owner TOYOTA JIDOSHA KK