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Control method of fuel cell hydrogen exhaust valve

A fuel cell and valve control technology, applied in the direction of fuel cell control, fuel cells, fuel cell additives, etc., can solve problems such as inappropriate opening time and unreasonable opening time of the hydrogen exhaust valve

Active Publication Date: 2020-02-11
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to at least solve the problems of inappropriate opening time and unreasonable opening time of the hydrogen exhaust valve

Method used

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  • Control method of fuel cell hydrogen exhaust valve
  • Control method of fuel cell hydrogen exhaust valve
  • Control method of fuel cell hydrogen exhaust valve

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Embodiment Construction

[0064] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0065]It should be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may also be meant to include the plural forms unless the context clearly dictates otherwise. The terms "comprising", "comprising", "containing" and "having" are inclusive and thus indicate the presence of stated ...

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Abstract

The invention belongs to the technical field of fuel cells, and in particular relates to a control method of a fuel cell hydrogen exhaust valve. The control method of the fuel cell hydrogen exhaust valve comprises the steps that the start of a fuel cell is controlled, and detection initialization is carried out; the hydrogen consumption amount is calculated; if the hydrogen consumption amount satisfies the preset consumption amount, the hydrogen exhaust time is calculated; the hydrogen exhaust valve is controlled to start, and timing is carried out; and if the start time of the hydrogen exhaust valve meets the hydrogen exhaust time, the hydrogen exhaust valve is controlled to close. According to the control method of the fuel cell hydrogen exhaust valve, which is provided by the embodimentof the invention, the hydrogen consumption amount can reflect the content of impurities in a hydrogen pipeline, and hydrogen is discharged according to the content of impurities; and hydrogen waste caused by unreasonable hydrogen discharge time is reduced, and the frequency of stack failure caused by insufficient hydrogen concentration is reduced.

Description

technical field [0001] The invention belongs to the technical field of engines, and in particular relates to a method for controlling a hydrogen exhaust valve of a fuel cell. Background technique [0002] This section provides background information related to the present disclosure only and is not necessarily prior art. [0003] The hydrogen in the hydrogen fuel cell enters the anode of the stack through the pressure regulating valve and the switching valve, and participates in the reaction at the anode. With the reaction, impurities such as nitrogen and water vapor gradually accumulate in the anode hydrogen pipeline. When the impurities accumulate to a certain amount, it needs to be opened. The hydrogen exhaust valve in the hydrogen pipeline discharges impurities to prevent anode starvation and side reactions caused by insufficient hydrogen concentration. [0004] At present, in the control of the hydrogen exhaust solenoid valve, the opening time, opening time and purge t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04298H01M8/0438
CPCH01M8/04298H01M8/0438H01M8/04402Y02E60/50
Inventor 仝玉华吕宪勇宋国梁魏倩雯胡永慧
Owner WEICHAI POWER CO LTD
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