Fuel cell purging system and control method

A fuel cell and control method technology, applied in the direction of fuel cells, fuel cell additives, electrolyte treatment of solid electrolyte cells, etc., capable of solving problems such as incomplete purging of fuel cells

Active Publication Date: 2021-05-04
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
View PDF15 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to propose a fuel cell purging system and control method, aiming at the problem of incomplete fuel cell purging

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fuel cell purging system and control method
  • Fuel cell purging system and control method
  • Fuel cell purging system and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0048] It should be noted that if there are directional indications involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture. If the specific posture changes , then the directional indication changes accordingly.

[0049] In addition, if there are descriptions involving "first", "second" and so on...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a fuel cell purging system and a control method. The control method comprises the following steps of: after a galvanic pile stops power generation and starts purging, acquiring purging preset parameters of an air system and a hydrogen system, and control parameters of a thermal management system; controlling a rotating speed of an air compressor, an opening degree of a hydrogen inlet proportional valve and a rotating speed of a hydrogen circulating pump according to the purging preset parameters, controlling and selectively communicating a heat dissipation branch and a heating branch according to control parameters of a heat management system, and controlling on and off of a corresponding heat dissipater and a corresponding heater; and acquiring a change value of alternating current impedance in an electric pile, and controlling the ending of in-pile purging according to the change value of the internal resistance of the electric pile. Through switching of the heating branch and the heat dissipation branch, purging of moisture in the electric pile is accelerated.

Description

technical field [0001] The invention relates to the field of automobile fuel cells, in particular to a fuel cell purging system and a control method. Background technique [0002] A fuel cell is a chemical device that directly converts the chemical energy of fuel into electrical energy through an electrochemical reaction. The mainstream vehicle-mounted fuel cell uses a proton exchange membrane fuel cell, and its reactants are hydrogen and air, which generate heat and water while generating electricity. Due to the large amount of water produced by the reaction, it is easy to accumulate inside the stack when it is shut down, resulting in water flooding, causing the performance of the stack to decay and affecting the next normal startup. Especially in the low temperature environment, the water in the stack will freeze, which will cause physical damage to the proton exchange membrane and the stack structure. up and working. To sum up, when the fuel cell is shut down, the stac...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04029H01M8/04228H01M8/04291H01M8/04303H01M8/04492H01M8/04694H01M8/04955
CPCH01M8/04029H01M8/04291H01M8/04492H01M8/04694H01M8/04955H01M8/04228H01M8/04303Y02E60/50
Inventor 张扬乔曌王家恒陈彬彬张坤姚成鑫姚帅杰
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap