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Working condition extraction method and device for fuel cell life evaluation

A fuel cell and extraction method technology, applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problems of working condition spectrum determination and extraction methods without clear methods

Pending Publication Date: 2022-04-29
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, at present, when evaluating the service life of fuel cells based on the "divided operating conditions" method, there is still no clear method for determining and extracting the operating condition spectrum, which needs to be further resolved

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  • Working condition extraction method and device for fuel cell life evaluation
  • Working condition extraction method and device for fuel cell life evaluation
  • Working condition extraction method and device for fuel cell life evaluation

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Embodiment Construction

[0042] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0043]In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0044] The following describes the working con...

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Abstract

The invention discloses a working condition extraction method and device for fuel cell life evaluation, and the method comprises the steps: determining the ranges of an idling interval, a large-load operation interval and a small-load operation interval to be extracted under a durability test protocol, and the large-amplitude variable load amplitude and the small-amplitude variable load amplitude; based on various to-be-extracted parameters, counting start-stop times, idling time, large-load operation time, small-load operation time and variable load times in the durability test protocol, and calculating time and times of each working condition to obtain a vehicle working condition spectrum of the durability test protocol. According to the invention, working condition spectrum data is provided for a working condition division test method for evaluating the service life of the fuel cell.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a working condition extraction method and device for fuel cell life evaluation. Background technique [0002] The service life is one of the key bottlenecks restricting the commercialization of fuel cells. Rapid evaluation of the service life of fuel cells is conducive to accelerating the improvement of fuel cell technology. There is a method that uses the method of "divided working conditions" to evaluate the service life of fuel cells. By testing the voltage decay rate under typical working conditions of fuel cells and counting the duration or times of each typical working condition during use, the vehicle fuel can be calculated. battery life. In addition, a method of evaluating the durability of fuel cells by "divided operating conditions" was proposed, and the method was verified by using experimental data and real vehicle road data. Another person proposed an online pre...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/367G01R31/378G01R31/392
CPCG01R31/367G01R31/378G01R31/392
Inventor 陈东方裴普成蒙依宁任棚宋鑫王鹤
Owner TSINGHUA UNIV