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A calibration method for a fuel cell thermal management system

A thermal management system and fuel cell technology, applied in fuel cells, circuits, electrical components, etc., can solve the problem that the position of the thermostat cannot be accurately identified online, and achieve intelligent control effects, automation, and non-perception Effect

Active Publication Date: 2021-08-03
BEIJING SINOHYTEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, it is urgent to develop a calibration method for the fuel cell thermal management system to solve the technical problem that the position of the thermostat cannot be accurately identified online

Method used

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  • A calibration method for a fuel cell thermal management system
  • A calibration method for a fuel cell thermal management system
  • A calibration method for a fuel cell thermal management system

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Embodiment Construction

[0032] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0033] Such as figure 1 As shown, this embodiment provides a thermal management system for a fuel cell, including a stack 1 , a water inlet temperature sensor 2 , a water outlet temperature sensor 7 , a water pump 6 , a thermostat 3 and a heat dissipation component 4 . Specifically, the electric stack 1, the water inlet temperature sensor 2, the ...

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Abstract

The invention discloses a calibration method for a fuel cell thermal management system, which belongs to the field of fuel cells. The calibration method of the fuel cell thermal management system of the present invention includes calculating the actual heat capacity C1 of the electric stack and the L1 circuit during the warm-up process, judging whether the position of the thermostat is abnormal according to the comparison between the actual heat capacity C1 and the theoretical heat capacity C0, and judging whether the position of the thermostat is abnormal Abnormal judgment whether to implement automatic calibration of thermostat during shutdown. This technical solution can realize the automation of abnormal determination and calibration of the thermostat, without affecting the driving experience of the driver, and realize the intelligent control effect without the driver's perception.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a calibration method for a thermal management system of a fuel cell. Background technique [0002] The working principle of the proton exchange membrane fuel cell is that hydrogen and oxygen undergo an electrochemical reaction to generate water and output electricity at the same time. Since the voltage of fuel cell cells is usually less than 1V, in practical applications, it is necessary to connect hundreds of cells in series to form a fuel cell stack, and match the corresponding peripheral accessories to form a fuel cell system. [0003] The thermal management system is one of the key subsystems of the fuel cell system. Usually, the thermal management system will include thermostats and other components. However, due to problems such as feedback position deviation of the thermostat during use, such as Zero point drift, etc., resulting in the inability to completely shut down, thus aff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04225H01M8/04228H01M8/04302H01M8/04303H01M8/04664
CPCH01M8/04686H01M8/04225H01M8/04228H01M8/04302H01M8/04303Y02E60/50
Inventor 赵兴旺盛有冬杨绍军
Owner BEIJING SINOHYTEC
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