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Fuel cell system and fuel cell vehicle

A fuel cell system and fuel cell technology, applied in the fields of fuel cells, fuel cell additives, transportation fuel cell technology, etc., can solve problems such as affecting commercial properties, and achieve the effect of suppressing noise and pulsation

Active Publication Date: 2011-09-14
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Such a phenomenon is, for example, when the required power generation amount of the fuel cell is low compared with other operating states (low-load operating conditions), such as in the idling operation of the vehicle, in other words, compared with other operating states, the In the case of auxiliary equipment with low operating noise and high quietness, it may particularly affect the marketability

Method used

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

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Embodiment Construction

[0032] Next, a fuel cell system 1 according to an embodiment of the present invention will be described 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 will be described.

[0033] Such as figure 1 As shown, the fuel cell system 1 of the present embodiment includes a fuel cell 10 that receives supply of reactant gas (oxidizing gas and fuel gas) to generate electric power through an electrochemical reaction, and includes a device that supplies air as an oxidizing gas to the fuel cell 10 . An oxidizing gas piping system 2, a hydrogen gas piping system (fuel supply system) 3 for supplying hydrogen as a fuel gas to the fuel cell 10, a control device 4 for centrally controlling the entire system, and the like.

[0034] The fuel cell 10 has a stack structure in which a predetermined number of single cells that generate electricity are stacked upon receiving supply...

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Abstract

The invention provides a fuel cell system having a fuel cell (10), a fuel supply system (3) for supplying fuel gas to the fuel cell (10), an injector (35) for driving a valve body by electromagnetic force at a predetermined drive frequency to separate the valve body from a valve seat, regulating conditions of gas on the upstream side of the fuel supply system (3) and injecting the gas to the downstream side, and a control device (4) for controlling operation of the injector (35). When a requested electric power generation amount for the fuel cell (10) is not more than a predetermined electricpower generation amount, the control device (4) allows the injector (35) to perform injection at an injection flow rate not more than a predetermined injection flow rate and sets the drive frequency of the injector (35) according to the injection flow rate and the requested electric power generation amount.

Description

technical field [0001] The present invention relates to a fuel cell system and a fuel cell vehicle including an injector in a fuel supply system for supplying fuel gas to a fuel cell. Background technique [0002] In recent years, a technique has been proposed in which an injector is arranged on a fuel supply flow path of a fuel cell system, and the operating state of the injector is controlled to adjust the supply pressure of the fuel gas in the fuel supply flow path (for example, refer to Japanese Patent Laid-Open 2005-302563 Bulletin). The injector is a structure that adjusts the gas state (gas flow rate and gas pressure) by driving the valve core away from the valve seat with a predetermined driving cycle by using electromagnetic driving force. The control device drives the valve core to control the injection timing and injection time of fuel gas. [0003] In the fuel cell system described above, by driving the injector, pulsation may be generated in the fuel gas in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04H01M8/00
CPCY02T90/34Y02T90/32H01M2250/20H01M8/04604B60L11/1892H01M8/04082Y02E60/50H01M8/04753B60L11/1881B60L58/30B60L58/33Y02T90/40H01M8/04B60L50/50
Inventor 片野刚司
Owner TOYOTA JIDOSHA KK