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Purge control method and system for a fuel cell system

A fuel cell system and fuel cell technology, applied in the direction of fuel cell control, fuel cells, fuel cell additives, etc., can solve the problems of fuel cell system damage, incomplete purging, etc., and achieve the effect of thorough purging and damage prevention

Active Publication Date: 2020-09-01
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a fuel cell system purging control method and system, which is used to solve the problem of damage to the fuel cell system due to incomplete purging

Method used

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  • Purge control method and system for a fuel cell system
  • Purge control method and system for a fuel cell system

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Embodiment Construction

[0028] In order to realize the thorough purging of the fuel cell system, the present invention provides a method for controlling the purging of the fuel cell system, the overall idea of ​​the method is as follows:

[0029] When the fuel cell is started, the information collected by the temperature sensor set in the vehicle is no longer used, because the information stored in the temperature sensor is still the ambient temperature information collected before the vehicle stops, and the vehicle shutdown time cannot be determined, and the possible time Very long, in the case of a long shutdown time, the ambient temperature may have changed greatly at this time, if the purging action is still performed according to the ambient temperature information collected by the temperature sensor when the fuel cell is started, it is likely to occur Incomplete purging occurs. Therefore, when the fuel cell is started, the present invention obtains recent ambient temperature information collect...

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Abstract

The invention relates to a blowing and sweeping control method and system for a fuel cell system, and the method comprises the steps: obtaining the environment temperature information through an Internet of Vehicles service platform when the fuel cell is started, wherein the environment temperature information comprises environment temperature information collected when the fuel cell is shut down;and executing the bowing and sweeping action according to the environment temperature information. The environment temperature information of recent days can be accurately obtained, accurate judgmentis conducted according to the information, therefore the blowing and sweeping action is accurately executed, blowing and sweeping are more thorough, and the situation that the fuel cell system is damaged due to incomplete blowing and sweeping is prevented.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a purging control method and system for a fuel cell system. Background technique [0002] A fuel cell is a power generating device that directly converts chemical energy stored in fuel and oxidant into electrical energy. Fuel can use H 2 , NH 3 , N 2 h 2 Hydrocarbons or H enriched after reforming 2 The reformed gas, the oxidant can generally use pure O 2 or air. [0003] The electrochemical reaction inside the fuel cell is accompanied by the production of large amounts of water, thus making its start-up at low temperature a challenge. Because in a low temperature environment, the generated water will immediately turn into ice, blocking the mass transfer channel of the reaction gas, causing problems such as a decrease in the electrochemical reaction rate, slow start-up, and start-up failure. Therefore, purging after shutdown to reduce the residual water insi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04298H01M8/04119H01M8/04302H01M8/04492
CPCH01M8/04156H01M8/04298H01M8/04302H01M8/04492Y02E60/50
Inventor 吴光平孟德水李飞强陈勇刚李玉鹏
Owner ZHENGZHOU YUTONG BUS CO LTD
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