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A hydrogenation fault diagnosis method for a fuel cell hydrogen system

A fault diagnosis, fuel cell technology, applied in fuel cells, power system fuel cells, circuits, etc., can solve problems such as danger, and achieve the effect of avoiding safety problems

Active Publication Date: 2021-06-04
BEIJING SINOHYTEC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

It may be dangerous if the user forgets to turn off the hydrogen fuel cell system and refuels directly

Method used

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  • A hydrogenation fault diagnosis method for a fuel cell hydrogen system
  • A hydrogenation fault diagnosis method for a fuel cell hydrogen system

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Embodiment Construction

[0033] Figure 1-2 and the following description describe alternative embodiments of the invention to teach those skilled in the art how to make and reproduce the invention. In order to teach the technical solutions of the present invention, some conventional aspects have been simplified or omitted. Those skilled in the art should understand that modifications or substitutions from these embodiments will fall within the protection scope of the present invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. As such, the invention is not limited to the alternative embodiments described below, but only by the claims and their equivalents.

[0034] figure 1 A block diagram of a fuel cell hydrogen system according to one embodiment of the present invention is shown. Such as figure 1 As shown, the fuel cell hydrogen system includes a hydrogen supply assembly A, a hydrogen...

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Abstract

The present invention provides a method for diagnosing a hydrogenation fault of a fuel cell hydrogen system. The hydrogenation fault diagnosis method includes: obtaining the temperature of each hydrogen storage cylinder in the fuel cell hydrogen system; opening the hydrogen storage cylinder with the highest temperature and closing other storage cylinders; Hydrogen cylinder; Obtain the initial pressure in the pipeline connecting the hydrogen storage component and the hydrogen supply component and start timing; judge whether the timing reaches or exceeds the preset diagnostic duration, if “Yes”, stop timing and obtain the connection of the hydrogen storage component and the supply component The current pressure in the pipeline of the hydrogen component; perform fault diagnosis and processing according to the initial pressure and current pressure in the pipeline connecting the hydrogen storage component and the hydrogen supply component. The advantage of this method is that it can automatically check whether the fuel cell hydrogen system is in the hydrogen supply state before hydrogen refueling, avoiding the safety problem caused by the user forgetting to turn off the hydrogen fuel cell system and directly filling hydrogen.

Description

technical field [0001] The invention relates to a fault diagnosis method, in particular to a hydrogenation fault diagnosis method of a fuel cell hydrogen system. Background technique [0002] Hydrogen fuel cell vehicle technology is becoming more and more mature. As a new energy vehicle with zero pollution and zero emissions, hydrogen fuel cell vehicles have increasingly entered the transportation system and have been widely recognized by the public. Fuel cell vehicles use hydrogen as fuel, and through the fuel engine, chemical energy is efficiently converted into electrical energy to drive the vehicle. The whole process only discharges pure water, so it is the most ideal energy-saving, environmentally friendly and zero-emission vehicle to replace traditional fossil fuel vehicles in the near future Transportation. The hydrogen system of a hydrogen fuel cell generally includes multiple hydrogen bottles for storing hydrogen. The fuel cell hydrogen system has functions such as...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04664H01M8/0432H01M8/0438
CPCH01M8/04373H01M8/04388H01M8/04686H01M2250/20Y02E60/50
Inventor 洪坡张国强
Owner BEIJING SINOHYTEC
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