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Fuel cell thermal management system and control method thereof

A thermal management system and fuel cell technology, applied in the direction of fuel cell heat exchange, fuel cells, fuel cell additives, etc., can solve problems such as poor reliability, and achieve the effect of ensuring reliability, improving reliability and stability

Active Publication Date: 2021-05-14
ZHENGZHOU YUTONG BUS CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide a control method of a fuel cell thermal management system to solve the problem of poor reliability in the prior art; meanwhile, it also provides a fuel cell thermal management system to solve the problem of poor reliability in the prior art

Method used

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  • Fuel cell thermal management system and control method thereof
  • Fuel cell thermal management system and control method thereof

Examples

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Embodiment Construction

[0019] Examples of fuel cell thermal management systems:

[0020] The fuel cell thermal management system proposed in this embodiment is as follows: figure 1 As shown, it includes a heat dissipation circulation pipeline for dissipating heat from the stack (FC stack), and a PTC, a water pump, a thermostat, and a heat dissipation fan group are arranged on the heat dissipation circulation pipeline. Each cooling fan in the cooling fan group is installed on a corresponding radiator. In this embodiment, the cooling fan group includes four fans and corresponding four radiators. Of course, the number of cooling fans and radiators in the system is not limited (generally, the number is greater than or equal to 2), as long as the heat balance can be achieved. The PTC, water pump, and thermostat are used to form a small thermal management cycle with the FC stack, and the water pump, thermostat, and cooling fan group are used to form a large thermal management cycle with the FC stack. Th...

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Abstract

The invention relates to a fuel cell thermal management system and a control method thereof, and belongs to the technical field of fuel cells. The control method comprises the following steps: detecting the actual output power, environment temperature and current of a galvanic pile in real time; after the radiator is started, judging through detection, and if the galvanic pile is in the following state and the lasting time is larger than a set time threshold value, controlling a single cooling fan to operate to achieve heat balance; wherein the state is that the actual output power of the galvanic pile is smaller than a power set threshold; the environment temperature is lower than a temperature set threshold value; the current equals the target current. When the fuel cell runs for a long time under the conditions of lower environment temperature and lower power, the single fan in the cooling fan group is controlled to run, so that the cooling capacity is smaller, the phenomena that the whole fan group is repeatedly started and the thermostat is repeatedly switched on and switched off are avoided, and the reliability and the stability of the fuel cell system are improved.

Description

technical field [0001] The invention relates to a fuel cell thermal management system and a control method thereof, belonging to the technical field of fuel cells. Background technique [0002] With the rapid development of economy and population, the excessive use of petroleum has caused problems such as environmental pollution, global warming and the lack of non-renewable energy. In order to get rid of the excessive dependence on traditional energy, new energy has been developed rapidly. As an efficient and clean energy conversion device, fuel cell (PEMFC) is very suitable as a power source for automobiles and buses. [0003] A fuel cell generates electricity through an electrochemical reaction between hydrogen as a reaction gas and oxygen containing air, and discharges heat and water as by-products of the reaction. Therefore, there is a need to provide a fuel cell thermal management system that maintains the temperature of the fuel cell at an optimal level. Common therm...

Claims

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Application Information

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IPC IPC(8): H01M8/04007H01M8/0432H01M8/04537
CPCH01M8/04007H01M8/0432H01M8/04574H01M8/04604Y02E60/50
Inventor 赵琨张龙海蒋尚峰李维国孟德水柴结实原田
Owner ZHENGZHOU YUTONG BUS CO LTD
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