Control method and control device for low-temperature starting of fuel cell system
A fuel cell system and fuel cell technology, applied in fuel cells, circuits, electrical components, etc., can solve problems such as inability to raise the temperature above freezing point, low temperature start, etc., to promote low temperature start results, ensure no reverse polarity, and the scope of application wide effect
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Embodiment 1
[0040]A first aspect of the embodiments of the present disclosure provides a control method for low-temperature startup of a fuel cell system, the fuel cell system involved here may use, for example, a proton exchange membrane fuel cell, and the fuel cell system has at least one fuel cell stack, At least one fuel cell unit is provided in the fuel cell stack. The low-temperature start mentioned here generally refers to starting a fuel cell vehicle that is not at an operating temperature in a low-temperature environment, wherein the temperature of the fuel cell is lower than the operating temperature, especially below 0° C., during the low-temperature start-up process. ; eg at -25°C.
[0041] Specifically, figure 1 A schematic diagram of the steps of the control method for low-temperature startup of a fuel cell system described in the present disclosure is shown, and the specific steps are as follows:
[0042] S101 , acquiring the temperature value of the fuel cell body.
[0...
Embodiment 2
[0065] In order to better implement the above method, a second aspect of the embodiments of the present disclosure further provides a control device for low-temperature startup of a fuel cell system, and the control device can be integrated on an electronic device.
[0066] For example, as Figure 4 As shown, the control device may include: an acquiring module 210, a determining module 220 and a lifting module 230, as follows:
[0067] (1) The acquisition module 210 is used to acquire the temperature value of the fuel cell body.
[0068] Specifically, the obtaining module 210 obtains the inlet temperature value and the cooling outlet temperature value of the fuel cell, and determines the body temperature value based on the inlet temperature value and the cooling outlet temperature value, optionally, by taking The body temperature value of the fuel cell is obtained by means of an arithmetic mean value.
[0069] (2) A determination module 220, configured to determine an upper ...
Embodiment 3
[0086] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructions, or completed by instructions that control relevant hardware, and the instructions can be stored in a computer-readable storage medium, and loaded and executed by the processor.
[0087] To this end, a third embodiment of the present disclosure provides a storage medium, where the storage medium is a computer-readable medium and stores a computer program. When the computer program is executed by a processor, the method provided by the embodiment of the present disclosure is implemented, including the following Steps S11 to S13:
[0088] S11, obtaining the temperature value of the fuel cell body;
[0089] S12, determining an upper limit current value and a current pulling rate value of the fuel cell based on the body temperature value;
[0090] S13, in the case that the lowest cell voltage value of the fuel cel...
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