Method and device for analyzing durability of hydrogen fuel cell

A fuel cell and analysis method technology, applied in the direction of measuring device, measuring electricity, measuring electrical variables, etc., can solve the problems of many manpower and material resources, long time consumption, and the attenuation law cannot be easily obtained, so as to improve the accuracy and improve the The effect of efficiency

Active Publication Date: 2021-11-19
DONGFENG MOTOR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although such data can reflect the law of battery attenuation within a certain period of time, it is not easy to obtain the law of attenuation in the subsequent period of time. If the duration of the endurance test is extended and the test is continued, it will take longer and manpower and material resources will be more

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  • Method and device for analyzing durability of hydrogen fuel cell
  • Method and device for analyzing durability of hydrogen fuel cell
  • Method and device for analyzing durability of hydrogen fuel cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiments of the present invention provide a hydrogen fuel cell durability performance analysis method, such as figure 1 shown, including:

[0053] S101, perform a durability drum test of the first preset duration on the whole vehicle, and record the relevant characteristic data and voltage data of the hydrogen fuel cell over time;

[0054]S102. Obtain a prediction model for predicting voltage data within a first preset time period based on the relevant feature data and voltage data;

[0055] S103, based on the prediction model, sequentially perform extrapolation prediction on each target time within the second preset time after the first preset time, so as to obtain the target voltage corresponding to each target time;

[0056] S104. Obtain the voltage decay curve of the hydrogen fuel cell based on the target voltage and the voltage data varying with time within the first preset duration;

[0057] S105, based on the voltage decay curve, analyze the durability perfo...

Embodiment 2

[0113] Based on the same inventive concept, the present invention also provides a hydrogen fuel cell durability analysis device, such as Figure 5 shown, including:

[0114] The recording module 501 is used to perform a durable drum test of the first preset duration on the whole vehicle, and record the relevant characteristic data and voltage data of the hydrogen fuel cell over time;

[0115] A model obtaining module 502, configured to obtain a prediction model for predicting voltage data within the first preset time period based on the relevant feature data and voltage data;

[0116] The extrapolation prediction module 503 is configured to, based on the prediction model, sequentially perform extrapolation prediction on each target moment in the second preset duration after the first preset duration, so as to obtain the corresponding the target voltage;

[0117] A curve obtaining module 504, configured to obtain a voltage decay curve of the hydrogen fuel cell based on the ta...

Embodiment 3

[0141] Based on the same inventive concept, Embodiment 3 of the present invention provides a computer device, such as Figure 6 As shown, it includes a memory 604, a processor 602, and a computer program stored in the memory 604 and operable on the processor 602. When the processor 602 executes the program, it realizes the steps of the above hydrogen fuel cell durability performance analysis method.

[0142] Among them, in Figure 6In, bus architecture (represented by bus 600), bus 600 may include any number of interconnected buses and bridges, bus 600 will include one or more processors represented by processor 602 and various types of memory represented by memory 604 circuits linked together. The bus 600 may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and thus will not be further described herein. The bus interface 606 provides an interface between the bus 600 and t...

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Abstract

The invention relates to the technical field of fuel cells, in particular to a method and device for analyzing durability of a hydrogen fuel cell. The method comprises the steps of carrying out a durability drum test for a first preset time length on a whole vehicle, thereby recording time-varying related characteristic data and voltage data of the hydrogen fuel cell, based on the related feature data and the voltage data, obtaining a prediction model for predicting the voltage data within a first preset duration, and based on the prediction model, sequentially performing extrapolation prediction on each target moment within a second preset duration after the first preset duration to obtain a target voltage corresponding to each target moment, and acquiring the voltage decline curve of the hydrogen fuel cell based on the target voltage and the voltage data changing along with the time in the first preset duration. The durability of the hydrogen fuel cell is analyzed based on the voltage decline curve, so that the efficiency of performance decline analysis is improved, and the accuracy is also improved.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a hydrogen fuel cell endurance performance analysis method and device. Background technique [0002] The existing vehicle durability drum test is a preset duration test (about 1500h) in accordance with the NEDC urban working conditions (ECE working conditions) to verify the reliability performance of the hydrogen fuel cell vehicle. [0003] Although such data can reflect the law of battery attenuation within a certain period of time, it is not easy to obtain the law of attenuation in the subsequent period of time. If the duration of the endurance test is extended and the test is continued, it will take longer and manpower And material resources will be more. [0004] Therefore, how to improve the efficiency and accuracy of hydrogen fuel cell durability analysis is an urgent technical problem to be solved. Contents of the invention [0005] In view of the above problems, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/378G01R31/385G01R31/367
CPCG01R31/378G01R31/385G01R31/367
Inventor 王秋来史建鹏苟斌王云中李洪涛
Owner DONGFENG MOTOR GRP
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