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Fuel cell system and fuel cell vehicle

A fuel cell system and fuel cell technology, applied in the direction of fuel cells, fuel cell additives, electric vehicles, etc., can solve problems such as deviations between injection timings, difficulty in controlling injectors with good precision, etc., and achieve vibration suppression and good precision Effect

Active Publication Date: 2009-09-23
TOYOTA JIDOSHA KK
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  • Abstract
  • Description
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Problems solved by technology

[0004] In addition, in the conventional fuel cell system, since the injector is separated from the pressure sensor provided in the fuel supply passage, there is a gap between the actual injection timing of the injector and the injection timing of the injector detected based on the measurement result of the pressure sensor. Deviation occurs, and the amount of change in gas pressure detected based on the measurement result of the pressure sensor is smaller than the amount of change in gas pressure in the fuel supply passage immediately before the injector, making it difficult to control the injector with high precision.

Method used

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  • Fuel cell system and fuel cell vehicle
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  • Fuel cell system and fuel cell vehicle

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Embodiment Construction

[0034] Next, a first embodiment of the fuel cell system of the present invention will be described. Hereinafter, the case where this fuel cell system is applied to an on-board power generation system of a fuel cell vehicle will be described, but the present invention is not limited to such an application example, and can be applied to all mobile bodies such as ships, airplanes, trains, and walking robots. Neutralize, for example, a stationary power generation system using a fuel cell as a power generation facility for buildings (houses, buildings, etc.).

[0035] exist figure 1 In the illustrated fuel cell system 1 , air (outside air, humidified gas) as an oxidizing gas is supplied to the air supply port of the fuel cell 20 via the air supply passage 71 . The air supply path 71 is provided with: an air filter A1 for removing fine particles from the air; a compressor A3 for pressurizing the air; and a humidifier A21 for applying necessary moisture to the air. An air flow mete...

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Abstract

A fuel cell system has a hydrogen supply path (74) for supplying hydrogen gas to a fuel cell (20); an injector (80) provided in the hydrogen supply path (74), regulating the pressure of gas on the upstream side of the hydrogen supply path (74), and injecting the pressure-regulated gas to the downstream side of the hydrogen supply path (74); and a surge tank (81) provided at a position on the upstream side of the injector (80) and suppressing variation in the pressure of the gas in the hydrogen supply path (74).

Description

technical field [0001] The present invention relates to a fuel cell system and a fuel cell vehicle including a variable gas supply device on a supply flow path for making fuel gas supplied from a fuel supply source flow to a fuel cell. Background technique [0002] In recent years, a fuel cell system has been proposed (for example, refer to Japanese Unexamined Patent Application Publication No. 2005-302571) in which fuel gas (such as hydrogen gas) supplied from a fuel supply source such as a fuel tank flows to the fuel cell A variable gas supply device such as a mechanical variable regulator and an injector is installed on the fuel supply flow path of the fuel tank, so that the supply pressure of the fuel gas from the fuel supply source can be changed according to the operating state of the system. [0003] However, in the fuel cell system described above, pulsation is generated in the fuel gas in the fuel supply passage due to driving of the injector, and thus vibration is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04B60K1/04B60K8/00B60L11/18H01M8/00
CPCH01M8/04097Y02E60/50H01M8/04B60L50/50
Inventor 片野刚司手岛信贵
Owner TOYOTA JIDOSHA KK
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