Fuel cell low-temperature starting control system and method

A fuel cell and startup control technology, applied in the field of vehicles, can solve the problems of system startup failure, electrical equipment and pipes freezing, affecting the normal operation of the fuel cell vehicle, etc., to achieve the effect of increasing the temperature rise rate and ensuring normal operation.

Pending Publication Date: 2022-08-09
CHINA FIRST AUTOMOBILE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, due to the large amount of water generated by the fuel cell cathode reaction, some electrical equipment and pipelines in the fuel cell start-up system are prone to freezing in an environment below 0°C, causing the system to fail to start and affecting the normal operation of the fuel cell vehicle

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  • Fuel cell low-temperature starting control system and method
  • Fuel cell low-temperature starting control system and method
  • Fuel cell low-temperature starting control system and method

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Embodiment Construction

[0042] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

[0043] Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary ski...

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Abstract

The invention relates to the technical field of vehicles, in particular to a fuel cell low-temperature starting control system and method. The control system comprises a cooling liquid loop and an air loop, wherein the cooling liquid loop comprises a cooling liquid pipeline, a high-pressure water pump, a first three-way valve, a heater and a thermostat; the air loop comprises a heat exchange device, an air pipeline, a throttle valve, a second three-way valve, an intercooler and an air compressor, high-temperature air generated by the air compressor can flow into the heat exchange device to be communicated with the air pipeline so as to heat the fuel cell, and the heater can also achieve the purpose of heating the fuel cell by heating the cooling liquid; compared with the prior art, the temperature rise rate of the fuel cell during low-temperature starting can be improved under the condition that high-power components are not increased, and normal operation of the fuel cell is ensured.

Description

technical field [0001] The invention relates to the technical field of vehicles, and in particular, to a low-temperature starting control system and method for a fuel cell. Background technique [0002] Fuel cells generate electricity through electrochemical reactions. Membrane electrodes and catalysts have certain requirements for the reaction temperature. Generally, the operating temperature is between 60°C and 80°C, but when applied in automobiles, the operating ambient temperature may even be as low as - 40 ℃, and the common fuel cell below -10 ℃ must use external heating or other control methods to heat up the fuel cell to output electrical energy. In addition, due to the large amount of water generated by the cathode reaction of the fuel cell, some electrical equipment and pipelines in the fuel cell start-up system are very easy to freeze in an environment below 0°C, which causes the system to fail to start and affects the normal operation of the fuel cell vehicle. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04302H01M8/04225H01M8/04007H01M8/04014H01M8/04029H01M8/04992
CPCH01M8/04302H01M8/04225H01M8/04014H01M8/04029H01M8/04037H01M8/04992H01M2250/20Y02E60/50
Inventor 曲禄成赵洪辉韩令海李金成丁天威王宇鹏黄兴段盼郝志强刘岩马秋玉
Owner CHINA FIRST AUTOMOBILE
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