A control method and device for a fuel cell system

A fuel cell system and electric stack technology, which is applied in the direction of fuel cells, circuits, electrical components, etc., can solve problems such as fuel cell system performance degradation, and achieve the effect of ensuring safety and stability

Active Publication Date: 2020-12-15
SHANGHAI HYDROGEN PROPULSION TECH CO LTD
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  • Claims
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Problems solved by technology

[0005] In view of this, the present invention provides a control method and device for a fuel cell system to solve the problem of performance degradation of the fuel cell system in a plateau environment

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  • A control method and device for a fuel cell system
  • A control method and device for a fuel cell system
  • A control method and device for a fuel cell system

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Embodiment Construction

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0053] An embodiment of the present invention provides a control method for a fuel cell system, the method is applied to a vehicle controller, and the flow chart of the method is as follows figure 1 shown, including the following steps:

[0054] S10, if it is detected that the vehicle is running in a plateau environment, obtain the current environmental pressure;

[0055] The plateau environment is generally defined as a continuous and stable environment with...

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Abstract

The present invention provides a method and device for controlling a fuel cell system. The method is applied to a vehicle controller. The method comprises a step of obtaining current ambient pressureif that the vehicle operates in a high altitude environment is detected, a step of determining a target electric pile cathode air pressure range, a target electric pile anode hydrogen pressure range,a target air compressor speed range and a target system output power range corresponding to the current environmental pressure according to a plateau environmental operation strategy generated based on a preset electric stack cathode standard operation condition in advance, and a step of controlling the operation of the fuel cell system according to the target electric pile cathode air pressure range, the target electric pile anode hydrogen pressure range, the target air compressor speed range and the target system output power range. Based on the method disclosed by the invention, the operating conditions of an air path and a hydrogen path of the fuel cell system in the plateau environment can be determined to ensure an optimal output capability, and at the same time, the safety and stability of the use of the electric pile and an air compressor can be ensured, and the method is fast, offline, reliable and efficient.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, and more specifically, to a control method and device for a fuel cell system. Background technique [0002] With the continuous consumption of fossil energy and the enhancement of people's awareness of environmental protection, fuel cell system technology is widely used in the automotive field. [0003] At this stage, the operation of the fuel cell system is mainly affected by the performance of the stack and air compressor. When the car is running in a plateau environment, compared with the standard atmospheric conditions, the oxygen content and pressure of the plateau atmosphere have dropped significantly. The drop in oxygen content in the plateau atmosphere will cause the output voltage of the stack to drop. In addition, in order to alleviate the impact of the sharp drop in the plateau atmospheric pressure, the vehicle-mounted fuel cell system requires a significant increase in the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04089H01M8/04746
CPCH01M8/04104H01M8/04753Y02E60/50
Inventor 宋宇琨钟华寿陈骏陈沛余意高婧
Owner SHANGHAI HYDROGEN PROPULSION TECH CO LTD
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