Control Method and Control Device of Fuel Cell Engine

Abstract

The present application provides a control method and a control device for a fuel cell engine. The method includes: First, when receiving a degassing instruction for controlling a fluid pipeline to degas, obtaining the minimum speed and the maximum speed of a pump set corresponding to the fluid pipeline of the fuel cell engine; Then, according to the minimum speed and the maximum speed, determining a plurality of predetermined speeds between the minimum speed and the maximum speed, and the minimum speed, the plurality of predetermined speeds, and the maximum speed form a speed set; Finally, controlling the pump set to operate at the speeds in the speed set in a predetermined order to remove the gas in the fluid pipeline. By controlling the pump set to operate at the speeds in the speed set in a predetermined order, the degassing work is automatically completed, avoiding the problem in the prior art that the degassing work in the cooling circuit of the fuel cell engine needs to be manually controlled, resulting in uncontrollable degassing quality, and ensuring high convenience and good degassing quality of the fuel cell engine.

Description

Technical Field

[0001] The present application relates to the field of automobiles, and in particular, to a control method for a fuel cell engine, a control device thereof, a computer-readable storage medium, a processor, and an FCU. Background Technique

[0002] Since the coolant flow channels of the fuel cell engine stack and the radiator are small, and the engine contains components such as a deionization tank and an intercooler that will accumulate coolant, there are often a large amount of gases in the cooling circuit that cannot be discharged when the engine is filled with coolant for the first time. This will not only affect the heat dissipation of the fuel cell engine stack, but also cause the water pump to run idly and dry, burning out the water pump.

[0003] Currently, after filling the fuel cell engine with coolant for the first time, most use manual control methods. The deaeration work of the fuel cell engine cooling circuit is carried out by manually controlling the water pump speed, and the experience of on-site engineers is used to judge whether the deaeration work is completed. In this way, the deaeration quality of the fuel cell engine cannot be controlled, and at the same time, the requirements for on-site personnel are relatively high.

[0004] The above information disclosed in the background art section is only used to enhance the understanding of the background art of the technology described in this article. Therefore, the background art may contain certain information that is not prior art known to those skilled in the art in this country. Summary of the Invention

[0005] The main purpose of the present application is to provide a control method for a fuel cell engine, a control device thereof, a computer-readable storage medium, a processor, and an FCU to solve the problem that the deaeration work in the cooling circuit of the fuel cell engine in the prior art needs to be manually controlled, resulting in uncontrollable deaeration quality.

[0006] According to one aspect of the embodiments of the present invention, a control method for a fuel cell engine is provided. The method includes: when receiving a deaeration instruction, obtaining the minimum speed and the maximum speed of a pump set corresponding to a fluid pipeline of the fuel cell engine, where the deaeration instruction is an instruction for controlling the fluid pipeline to perform deaeration; determining a plurality of predetermined speeds according to the minimum speed and the maximum speed, where the maximum value of the plurality of predetermined speeds is less than the maximum speed, the minimum value of the plurality of predetermined speeds is greater than the minimum speed, and the minimum speed, the plurality of predetermined speeds, and the maximum speed form a speed set; controlling the pump set to operate at the speeds in the speed set in a predetermined order to remove the gas in the fluid pipeline.

[0007] Optionally, based on the minimum rotational speed and the maximum rotational speed, a plurality of predetermined rotational speeds are determined, including: determining a predetermined difference according to the minimum rotational speed and the maximum rotational speed, the predetermined difference being (N max -N min )×A%, where N max is the maximum rotational speed, N min is the minimum rotational speed, and A is a predetermined threshold; determining a plurality of the predetermined rotational speeds according to the predetermined difference, the minimum rotational speed, and the maximum rotational speed, such that the difference between any two numerically adjacent predetermined rotational speeds is the predetermined difference.

[0008] Optionally, after controlling the pump set to operate at the rotational speeds in the rotational speed set in a predetermined order, the method further includes: obtaining the rated working pressure and the actual pressure of the fluid pipeline, and obtaining the rated power and the actual power of the pump set; calculating a ratio of the rated working pressure to the actual pressure to obtain a first ratio; calculating a ratio of the rated power to the actual power to obtain a second ratio; and performing a predetermined operation in the case where the first ratio or the second ratio is not within a predetermined range, such that the first ratio and the second ratio are within the predetermined range.

[0009] Optionally, after calculating the ratio of the rated power to the actual power to obtain the second ratio, the method further includes: determining that the degassing process is completed in the case where both the first ratio and the second ratio are within the predetermined range.

[0010] Optionally, in the case where the first ratio or the second ratio is not within the predetermined range, performing a predetermined operation includes: a first control step of controlling the pump set to operate at a target temperature condition and a first predetermined rotational speed for a first time in the case where the first ratio or the second ratio is not within the predetermined range, the first predetermined rotational speed being one of the plurality of rotational speeds in the rotational speed set, the target temperature being greater than a predetermined temperature, and the predetermined temperature being the set temperature when controlling the pump set to operate at the rotational speeds in the rotational speed set in sequence; a calculation step of calculating the first ratio and the second ratio after the pump set operates at the first predetermined rotational speed for the first time; and a first loop step of loop-executing the first control step and the calculation step until the first ratio and the second ratio are within the predetermined range.

[0011] Optionally, controlling the pump set to operate at the speeds in the speed set in a predetermined order successively includes: a second control step of controlling the pump set to operate at the minimum speed for a second time at the predetermined temperature; a third control step of controlling the pump set to operate at the predetermined temperature and a second predetermined speed for a third time, where the second predetermined speed is the speed in the speed set that is greater than the minimum speed and has the smallest difference from the minimum speed; a determination step of determining the speed in the speed set that is greater than the second predetermined speed and has the smallest difference from the second predetermined speed as the new second predetermined speed; and a second loop step of loop-executing the third control step and the determination step until the pump set operates at the maximum speed for the third time.

[0012] According to another aspect of an embodiment of the present invention, there is also provided a control device for a fuel cell engine. The device includes a first acquisition unit, a first determination unit, and a control unit. Among them, the first acquisition unit is configured to acquire the minimum speed and the maximum speed of a pump set corresponding to a fluid pipeline of the fuel cell engine when receiving a degassing instruction, where the degassing instruction is an instruction for controlling degassing of the fluid pipeline; the first determination unit is configured to determine a plurality of predetermined speeds according to the minimum speed and the maximum speed, where the maximum value among the plurality of predetermined speeds is less than the maximum speed, and the minimum value among the plurality of predetermined speeds is greater than the minimum speed, and the minimum speed, the plurality of predetermined speeds, and the maximum speed form a speed set; and the control unit is configured to control the pump set to operate at the speeds in the speed set in a predetermined order successively to remove gas in the fluid pipeline.

[0013] According to still another aspect of an embodiment of the present invention, there is also provided a computer-readable storage medium. The computer-readable storage medium includes a stored program, where the program is used to execute any one of the methods.

[0014] According to yet another aspect of an embodiment of the present invention, there is also provided a processor. The processor is used to run a program, where the program executes any one of the methods when running.

[0015] According to still another aspect of an embodiment of the present invention, there is also provided an FCU (Fuel cell Control Unit), where the FCU includes one or more processors, a memory, and one or more programs. Among them, the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include those for executing any one of the methods.

[0016] In an embodiment of the present invention, in the control method of the fuel cell engine, first, when receiving a degassing instruction for controlling the degassing of the fluid pipeline, the minimum speed and the maximum speed of the pump set corresponding to the fluid pipeline of the fuel cell engine are obtained; then, according to the minimum speed and the maximum speed, a plurality of predetermined speeds located between the minimum speed and the maximum speed are determined, and the minimum speed, the plurality of predetermined speeds, and the maximum speed form a speed set; finally, the pump set is controlled to operate at the speeds in the speed set in a predetermined order to remove the gas in the fluid pipeline. Compared with the problem in the prior art that the degassing work in the cooling circuit of the fuel cell engine needs to be manually controlled, resulting in uncontrollable degassing quality, in the control method of the fuel cell engine of the present application, by obtaining the minimum speed and the maximum speed to obtain the speed set, and then controlling the pump set to operate at the speeds in the speed set in the predetermined order, the degassing work is automatically completed. The fuel cell engine achieves the purpose of removing the gas in the fluid pipeline by operating at different speeds, ensuring better degassing quality of the fuel cell engine, avoiding the problem in the prior art that the degassing work in the cooling circuit of the fuel cell engine needs to be manually controlled, resulting in uncontrollable degassing quality, and ensuring higher convenience and better degassing quality of the fuel cell engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments and descriptions thereof of this application are used to explain this application and do not constitute an improper limitation of this application. In the drawings:

[0018] Figure 1 FIG. shows a schematic flow chart of a control method of a fuel cell engine according to an embodiment of the present application;

[0019] Figure 2 FIG. shows a schematic diagram of a control device of a fuel cell engine according to an embodiment of the present application;

[0020] Figure 3 FIG. shows a flow chart of the control of a fuel cell engine according to an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0022] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances for the embodiments of this application described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0024] It should be understood that when an element (such as a layer, film, region, or substrate) is described as being "on" another element, the element can be directly on the other element, or there can also be an intermediate element. Moreover, in the specification and claims, when an element is described as "connected" to another element, the element can be "directly connected" to the other element, or "connected" to the other element through a third element.

[0025] As mentioned in the background art, the degassing work in the fuel cell engine cooling circuit in the prior art requires manual control, resulting in the problem that the degassing quality cannot be controlled. To solve the above problems, in a typical embodiment of this application, a control method for a fuel cell engine, its control device, a computer-readable storage medium, a processor, and an FCU are provided.

[0026] According to an embodiment of this application, a control method for a fuel cell engine is provided.

[0027] Figure 1 is a flowchart of the control method for a fuel cell engine according to an embodiment of this application. As Figure 1 shown, the method includes the following steps:

[0028] Step S101, when receiving a degassing instruction, obtain the minimum speed and the maximum speed of the pump set corresponding to the fluid pipeline of the fuel cell engine, where the degassing instruction is an instruction for controlling the degassing of the fluid pipeline;

[0029] Step S102: Determine a plurality of predetermined speeds according to the above minimum speed and the above maximum speed. Among them, the maximum value of the plurality of predetermined speeds is less than the above maximum speed, and the minimum value of the plurality of predetermined speeds is greater than the above minimum speed. The above minimum speed, the plurality of predetermined speeds, and the above maximum speed constitute a speed set.

[0030] Step S103: Control the above pump set to operate at the speeds in the above speed set in a predetermined order to remove the gas in the above fluid pipeline.

[0031] In the above control method of the fuel cell engine, first, when receiving a degassing instruction for controlling degassing of the above fluid pipeline, obtain the minimum speed and the maximum speed of the pump set corresponding to the fluid pipeline of the above fuel cell engine; then, according to the above minimum speed and the above maximum speed, determine a plurality of predetermined speeds located between the above minimum speed and the above maximum speed. The above minimum speed, the plurality of predetermined speeds, and the above maximum speed constitute a speed set; finally, control the above pump set to operate at the speeds in the above speed set in a predetermined order to remove the gas in the above fluid pipeline. Compared with the problem in the prior art that the degassing work in the cooling circuit of the fuel cell engine needs to be manually controlled, resulting in uncontrollable degassing quality, in the above control method of the fuel cell engine of the present application, by obtaining the above minimum speed and the above maximum speed to obtain the above speed set, and then controlling the above pump set to operate at the speeds in the above speed set in the above predetermined order, the degassing work is automatically completed. The above fuel cell engine runs at different speeds to achieve the purpose of removing the gas in the above fluid pipeline, ensuring better degassing quality of the above fuel cell engine, avoiding the problem in the prior art that the degassing work in the cooling circuit of the fuel cell engine needs to be manually controlled, resulting in uncontrollable degassing quality, and ensuring higher convenience and better degassing quality of the above fuel cell engine.

[0032] It should be noted that the above predetermined order includes the order from small to large or from large to small. Of course, it can also start running from any one of the speeds in the above speed set, which is specifically determined according to the actual situation.

[0033] Specifically, the above fluid pipeline includes liquids such as water or coolant. Of course, it can also be other liquids. The above pump body includes a water pump, and it can also be other pumps that can drive the liquid in the above fluid pipeline to run.

[0034] In a specific embodiment, after the cooling and filling of the above fuel cell engine are completed, it can be manually controlled by the staff so that the above fuel cell engine receives the above degassing instruction.

[0035] According to a specific embodiment of the present application, based on the above minimum speed and the above maximum speed, a plurality of predetermined speeds are determined, including: based on the above minimum speed and the above maximum speed, a predetermined difference is determined, and the predetermined difference is (N max -N min )×A%, where N max is the above maximum speed, N min is the above minimum speed, and A is a predetermined threshold; based on the above predetermined difference, the above minimum speed, and the above maximum speed, a plurality of the above predetermined speeds are determined such that the difference between any two numerically adjacent above predetermined speeds is the above predetermined difference. By determining the above predetermined difference based on the above minimum speed and the above maximum speed, and then determining a plurality of the above predetermined speeds based on the above predetermined difference, the above minimum speed, and the above maximum speed, the difference between any two numerically adjacent above predetermined speeds among the automatically calculated plurality of the above predetermined speeds is equal to the above predetermined difference, ensuring that the values of the plurality of the above predetermined speeds are all different and evenly distributed between the above minimum speed and the above maximum speed, enabling the above pump set to operate at different speeds within the above speed range, ensuring a better effect of removing the gas in the above fluid pipeline, and further ensuring better gas removal quality and higher gas removal efficiency of the above fuel cell engine.

[0036] In a specific embodiment, it is defined that the above minimum speed N of the water pump min = 20, and the above maximum speed N of the water pump under a hydrogen water pressure difference of 1 bar max = 120. The above predetermined difference is set as (N max -N min )×A%, where A is 20. Then the plurality of the above predetermined speeds include 40, 60, 80, and 100, and the above speed range is (20, 40, 60, 80, 100, 120).

[0037] To further ensure a relatively high level of convenience of the above fuel cell engine, according to another specific embodiment of the present application, after controlling the above pump group to operate at the speeds concentrated in the above rotational speeds in a predetermined order, the above method further includes: obtaining the rated working pressure and the actual pressure of the above fluid pipeline, and obtaining the rated power and the actual power of the above pump group; calculating the ratio of the above rated working pressure to the above actual pressure to obtain a first ratio; calculating the ratio of the above rated power to the above actual power to obtain a second ratio; in the case where the above first ratio or the above second ratio is not within a predetermined range, performing a predetermined operation to make the above first ratio and the above second ratio within the above predetermined range. By obtaining the above rated working pressure, the above actual pressure, the above rated power, and the above actual power, and then calculating the above first ratio and the above second ratio, it is possible to determine whether the degassing work in the above fluid pipeline is completed through the above first ratio and the above second ratio, and in the case where the above first ratio or the second ratio is not within the predetermined range, by performing the above predetermined operation to make the above first ratio and the above second ratio within the above predetermined range, it is ensured that the above fuel cell engine can automatically determine whether the degassing work is completed, and in the case where the above degassing work is not completed, by performing the above predetermined operation to complete the above degassing work, further ensuring a relatively high level of convenience of the above fuel cell engine and relatively good degassing quality.

[0038] In a specific embodiment, the above predetermined range can be determined according to the actual situation. Specifically, the above predetermined range is ±3%.

[0039] Specifically, by determining whether the above first ratio and the above second ratio are within the above predetermined range, it is possible to automatically determine whether the degassing of the above fuel cell engine is completed, ensuring the unity of the above judgment criteria, ensuring that the degassing quality of the above fuel cell engine will not vary due to the different experiences of the staff, ensuring a relatively high level of stability and efficiency in the degassing of the cooling circuit of the above fuel cell engine, and ensuring a relatively small working intensity for the staff.

[0040] To further ensure a relatively high level of convenience of the above fuel cell engine, according to yet another specific embodiment of the present application, after calculating the ratio of the above rated power to the above actual power to obtain a second ratio, the above method further includes: in the case where both the above first ratio and the above second ratio are within the above predetermined range, determining that the degassing process is completed. By automatically determining that the degassing process is completed when both the above first ratio and the above second ratio are within the above predetermined range, it further ensures a relatively high level of convenience of the above fuel cell engine.

[0041] According to a specific embodiment of the present application, when the above first ratio or second ratio is not within a predetermined range, a predetermined operation is performed, including: a first control step, when the above first ratio or the above second ratio is not within the above predetermined range, controlling the above pump group to operate at a target temperature condition and a first predetermined speed for a first time, the above first predetermined speed being one of a plurality of the above speeds, the above target temperature being greater than a predetermined temperature, the above predetermined temperature being the set temperature when controlling the above pump group to operate in sequence at the speeds in the above speed set; a calculation step, calculating the above first ratio and the above second ratio after the above pump group operates at the above first predetermined speed for the above first time; a first loop step, looping and executing the above first control step and the above calculation step until the above first ratio and the above second ratio are within the above predetermined range. When the above first ratio or the above second ratio is not within the above predetermined range, first, by controlling the above pump group to operate at the above target temperature greater than the above predetermined temperature for the above first time, since the higher the temperature, the better the degassing effect, the above fuel cell engine can complete the above degassing process faster, and then, through the above calculation step, it is determined whether both the above first ratio and the above second ratio are within the above predetermined range, so as to automatically determine whether the above degassing work has been completed, and through the above first loop step, when the above first ratio or the above second ratio is not within the above predetermined range, the above fuel cell engine continuously performs the above degassing process until the above first ratio and the above second ratio are within the above predetermined range, further ensuring that the above fuel cell engine has high convenience and good degassing quality.

[0042] In a specific embodiment, the above predetermined temperature is room temperature, and the degassing process at the above target temperature is defined as hot engine degassing. Specifically, the above first predetermined speed is the above maximum speed.

[0043] According to another specific embodiment of the present application, controlling the above pump group to operate at the speeds in the above speed concentration in a predetermined order successively includes: a second control step of controlling the above pump group to operate at the above minimum speed for a second time at the above predetermined temperature; a third control step of controlling the above pump group to operate at the above predetermined temperature and a second predetermined speed for a third time, where the second predetermined speed is the speed in the above speed concentration that is greater than the above minimum speed and has the smallest difference from the above minimum speed; a determination step of determining the speed in the above speed concentration that is greater than the above second predetermined speed and has the smallest difference from the above second predetermined speed as the new above second predetermined speed; a second loop step of looping and executing the above third control step and the above determination step until the above pump group operates at the above maximum speed for the above third time. By first controlling the above pump group to operate at the above predetermined temperature and the above minimum speed for the above second time, then controlling the above pump group to operate at the above predetermined temperature and the above second predetermined speed for the above third time, and by determining the latest above second predetermined speed such that the latest above second predetermined speed is greater than the above second predetermined speed and has the smallest difference from the above second predetermined speed, and then through the above second loop step, the above pump group automatically operates at the speeds in the above speed concentration in ascending order, further ensuring a relatively high convenience of the above fuel cell engine.

[0044] In a specific embodiment, the above predetermined order is to operate at the speeds in the above speed concentration in ascending order. Of course, the above predetermined order can also be changed according to actual situations. The above first time, the above second time, and the above third time can be the same or different, and are specifically set according to actual situations.

[0045] Specifically, the above fuel cell engine is a device that generates electric energy by reacting hydrogen and oxygen. The above fuel cell engine includes a fuel cell stack, an air supply system, a hydrogen supply system, a water and heat management system, an electronic control system, etc.

[0046] The embodiment of the present application also provides a control device for a fuel cell engine. It should be noted that the control device for the fuel cell engine in the embodiment of the present application can be used to execute the control method for the fuel cell engine provided in the embodiment of the present application. The following introduces the control device for the fuel cell engine provided in the embodiment of the present application.

[0047] Figure 2 is a schematic diagram of the control device for the fuel cell engine according to the embodiment of the present application. As Figure 2As shown in the figure, the device includes a first acquisition unit 10, a first determination unit 20, and a control unit 30. Among them, the first acquisition unit 10 is configured to acquire the minimum speed and the maximum speed of the pump set corresponding to the fluid pipeline of the fuel cell engine when receiving a degassing instruction, where the degassing instruction is an instruction for controlling the degassing of the fluid pipeline; the first determination unit 20 is configured to determine a plurality of predetermined speeds according to the minimum speed and the maximum speed, where the maximum value among the plurality of predetermined speeds is less than the maximum speed, and the minimum value among the plurality of predetermined speeds is greater than the minimum speed, and the minimum speed, the plurality of predetermined speeds, and the maximum speed form a speed set; the control unit 30 is configured to control the pump set to operate at the speeds in the speed set in a predetermined order to remove the gas in the fluid pipeline.

[0048] In the control device of the fuel cell engine, when receiving a degassing instruction, the first acquisition unit acquires the minimum speed and the maximum speed of the pump set corresponding to the fluid pipeline of the fuel cell engine, where the degassing instruction is an instruction for controlling the degassing of the fluid pipeline; the first determination unit determines a plurality of predetermined speeds according to the minimum speed and the maximum speed, where the maximum value among the plurality of predetermined speeds is less than the maximum speed, and the minimum value among the plurality of predetermined speeds is greater than the minimum speed, and the minimum speed, the plurality of predetermined speeds, and the maximum speed form a speed set; the control unit controls the pump set to operate at the speeds in the speed set in a predetermined order to remove the gas in the fluid pipeline. Compared with the problem in the prior art that the degassing work in the cooling circuit of the fuel cell engine needs to be manually controlled, resulting in uncontrollable degassing quality, in the control device of the fuel cell engine of the present application, by acquiring the minimum speed and the maximum speed to obtain the speed set, and then controlling the pump set to operate at the speeds in the speed set in the predetermined order, the degassing work is automatically completed. The fuel cell engine achieves the purpose of removing the gas in the fluid pipeline by operating at different speeds, ensuring better degassing quality of the fuel cell engine, avoiding the problem in the prior art that the degassing work in the cooling circuit of the fuel cell engine needs to be manually controlled, resulting in uncontrollable degassing quality, and ensuring higher convenience and better degassing quality of the fuel cell engine.

[0049] It should be noted that the predetermined order includes the order from small to large or from large to small. Of course, it can also start operating from any one of the speeds in the speed set, which is specifically determined according to the actual situation.

[0050] Specifically, the above fluid pipeline includes liquids such as water or coolant. Of course, it can also be other liquids. The above pump body includes a water pump, and it can also be other pumps that can drive the liquid in the above fluid pipeline to operate.

[0051] In a specific embodiment, after the cooling and filling of the above fuel cell engine are completed, it can be manually controlled by the staff so that the above fuel cell engine receives the above degassing instruction.

[0052] According to a specific embodiment of the present application, the above first determination unit includes a first determination module and a second determination module. Among them, the above first determination module is used to determine a predetermined difference according to the above minimum speed and the above maximum speed. The above predetermined difference is (N max -N min )×A%, where N max is the above maximum speed, N min is the above minimum speed, and A is a predetermined threshold; the above second determination module is used to determine a plurality of the above predetermined speeds according to the above predetermined difference, the above minimum speed and the above maximum speed, so that the difference between any two numerically adjacent above predetermined speeds is the above predetermined difference. By determining the above predetermined difference according to the above minimum speed and the above maximum speed, and then determining a plurality of the above predetermined speeds according to the above predetermined difference, the above minimum speed and the above maximum speed, it is ensured that the difference between any two numerically adjacent above predetermined speeds among the automatically calculated plurality of the above predetermined speeds is equal to the above predetermined difference, ensuring that the values of the plurality of the above predetermined speeds are all different and evenly distributed between the above minimum speed and the above maximum speed, so that the above pump group can operate at different speeds in the above speed concentration, ensuring that the effect of removing the gas in the above fluid pipeline is better, and further ensuring that the degassing quality of the above fuel cell engine is better and the degassing efficiency is higher.

[0053] In a specific embodiment, define the above minimum speed N min of the water pump = 20, and the above maximum speed N max of the water pump under a hydrogen water pressure difference of 1 bar = 120. Set the above predetermined difference as (N max -N min )×A%, where A is 20. Then a plurality of the above predetermined speeds include 40, 60, 80, and 100. Then the above speed set is (20, 40, 60, 80, 100, 120).

[0054] In order to further ensure the high convenience of the above fuel cell engine, according to another specific embodiment of the present application, the above device further includes a second acquisition unit, a first calculation unit, a second calculation unit, and an execution unit. Among them, the above second acquisition unit is used to acquire the rated working pressure and the actual pressure of the above fluid pipeline, and acquire the rated power and the actual power of the above pump set after controlling the above pump set to operate at the speeds in the above speed concentration in a predetermined order; the above first calculation unit is used to calculate the ratio of the above rated working pressure to the above actual pressure to obtain a first ratio; the above second calculation unit is used to calculate the ratio of the above rated power to the above actual power to obtain a second ratio; the above execution unit is used to execute a predetermined operation when the above first ratio or the second ratio is not within a predetermined range, so that the above first ratio and the above second ratio are within the above predetermined range. By acquiring the above rated working pressure, the above actual pressure, the above rated power, and the above actual power, and then calculating the above first ratio and the above second ratio, it is possible to determine whether the degassing work in the above fluid pipeline is completed through the above first ratio and the above second ratio. And when the above first ratio or the second ratio is not within the predetermined range, by executing the above predetermined operation, so that the above first ratio and the above second ratio are within the above predetermined range, it is ensured that the above fuel cell engine can automatically judge whether the degassing work is completed, and when the degassing work is not completed, the above degassing work is completed by executing the above predetermined operation, further ensuring the high convenience and good degassing quality of the above fuel cell engine.

[0055] In a specific embodiment, the above predetermined range can be determined according to the actual situation. Specifically, the above predetermined range is ±3%.

[0056] Specifically, by determining whether the above first ratio and the above second ratio are within the above predetermined range, it is possible to automatically judge whether the degassing of the above fuel cell engine is completed, ensuring the unity of the above judgment standard, ensuring that the degassing quality of the above fuel cell engine will not vary due to the different experiences of the staff, ensuring the high stability and high efficiency of the degassing of the cooling circuit of the above fuel cell engine, and ensuring that the work intensity of the staff is small.

[0057] To further ensure a relatively high level of convenience of the above fuel cell engine, according to another specific embodiment of the present application, the above device further includes a second determination unit, which is configured to, after calculating the ratio of the above rated power to the above actual power to obtain a second ratio, determine that the degassing process is completed when both the above first ratio and the above second ratio are within the above predetermined range. By automatically determining that both the above first ratio and the above second ratio are within the above predetermined range, it is determined that the above degassing process is completed, further ensuring a relatively high level of convenience of the above fuel cell engine.

[0058] According to a specific embodiment of the present application, the above execution unit includes a first control module, a calculation module, and a first circulation module. Among them, the above first control module is used for the first control step. When the above first ratio or the second ratio is not within the above predetermined range, the above pump group is controlled to operate at a target temperature condition and a first predetermined rotational speed for a first time. The above first predetermined rotational speed is one of a plurality of the above rotational speeds, the above target temperature is greater than the predetermined temperature, and the above predetermined temperature is the set temperature when the above pump group is controlled to operate at the rotational speeds in the above rotational speed set in sequence; the above calculation module is used for the calculation step to calculate the above first ratio and the above second ratio after the above pump group operates at the above first predetermined rotational speed for the above first time; the above first circulation module is used for the first circulation step to repeatedly execute the above first control step and the above calculation step until both the above first ratio and the above second ratio are within the above predetermined range. When the above first ratio or the above second ratio is not within the above predetermined range, first, by controlling the above pump group to operate at the above target temperature greater than the above predetermined temperature for the above first time, since the higher the temperature, the better the degassing effect, the above fuel cell engine can complete the above degassing process faster. Then, through the above calculation step, it is determined whether both the above first ratio and the above second ratio are within the above predetermined range to realize automatic determination of whether the above degassing work has been completed. And through the above first circulation step, when the above first ratio or the above second ratio is not within the above predetermined range, the above fuel cell engine continuously executes the above degassing process until both the above first ratio and the above second ratio are within the above predetermined range, further ensuring a relatively high level of convenience of the above fuel cell engine and a relatively good degassing quality.

[0059] In a specific embodiment, the above predetermined temperature is room temperature, and the degassing process at the above target temperature is defined as hot engine degassing. Specifically, the above first predetermined rotational speed is the above maximum rotational speed.

[0060] According to another specific embodiment of the present application, the above control unit includes a second control module, a third control module, a third determination module, and a second loop module. Among them, the second control module is used for the second control step to control the pump group to operate at the minimum speed for a second time at the above-mentioned predetermined temperature; the third control module is used for the third control step to control the pump group to operate at the above-mentioned predetermined temperature and a second predetermined speed for a third time, and the second predetermined speed is the speed in the speed set that is greater than the minimum speed and has the smallest difference from the minimum speed; the third determination module is used for the determination step to determine that the speed in the speed set that is greater than the second predetermined speed and has the smallest difference from the second predetermined speed is the new second predetermined speed; the second loop module is used for the second loop step to loop and execute the above third control step and the above determination step until the pump group operates at the maximum speed for the above third time. By first controlling the pump group to operate at the above-mentioned predetermined temperature and the minimum speed for the above second time, then controlling the pump group to operate at the above-mentioned predetermined temperature and the second predetermined speed for the above third time, and by determining the latest second predetermined speed, making the latest second predetermined speed greater than the second predetermined speed and having the smallest difference from the second predetermined speed, and then through the above second loop step, enabling the pump group to automatically operate at the speeds in the speed set in ascending order, further ensuring a relatively high convenience of the above fuel cell engine.

[0061] In a specific embodiment, the above predetermined order is to operate the speeds in the speed set in ascending order. Of course, the above predetermined order can also be changed according to actual situations. The first time, the second time, and the third time can be the same or different, and are specifically set according to actual situations.

[0062] Specifically, the above fuel cell engine is a device that uses the reaction of hydrogen and oxygen to generate electric energy. The fuel cell engine includes a stack, an air supply system, a hydrogen supply system, a water and heat management system, an electronic control system, etc.

[0063] The control device of the above fuel cell engine includes a processor and a memory. The first acquisition unit, the first determination unit, and the control unit, etc. are all stored in the memory as program units, and the processor executes the program units stored in the memory to implement corresponding functions.

[0064] The processor contains a kernel, and the kernel retrieves the corresponding program units from the memory. One or more kernels can be set, and by adjusting the kernel parameters, the problem that the degassing work in the cooling circuit of the fuel cell engine in the prior art needs to be manually controlled, resulting in uncontrollable degassing quality, can be solved.

[0065] The memory may include non - permanent memory in the form of computer - readable media, such as random access memory (RAM) and / or non - volatile memory, such as read - only memory (ROM) or flash RAM. The memory includes at least one memory chip.

[0066] An embodiment of the present invention provides a computer - readable storage medium, on which a program is stored. When the program is executed by a processor, the control method of the above - mentioned fuel cell engine is implemented.

[0067] An embodiment of the present invention provides a processor, which is used to run a program. When the program runs, the control method of the above - mentioned fuel cell engine is executed.

[0068] An embodiment of the present invention provides a device, which includes a processor, a memory, and a program stored on the memory and executable on the processor. When the processor executes the program, at least the following steps are implemented:

[0069] Step S101: When a degassing instruction is received, obtain the minimum speed and the maximum speed of the pump set corresponding to the fluid pipeline of the above - mentioned fuel cell engine. The degassing instruction is an instruction for controlling degassing of the fluid pipeline;

[0070] Step S102: Determine a plurality of predetermined speeds according to the minimum speed and the maximum speed. Among them, the maximum value of the plurality of predetermined speeds is less than the maximum speed, and the minimum value of the plurality of predetermined speeds is greater than the minimum speed. The minimum speed, the plurality of predetermined speeds, and the maximum speed form a speed set;

[0071] Step S103: Control the pump set to run at the speeds in the speed set in a predetermined order to remove the gas in the fluid pipeline.

[0072] The device herein can be a server, a PC, a PAD, a mobile phone, etc.

[0073] The present application also provides a computer program product, which, when executed on a data - processing device, is adapted to execute a program initialized with at least the following method steps:

[0074] Step S101: When a degassing instruction is received, obtain the minimum speed and the maximum speed of the pump set corresponding to the fluid pipeline of the above - mentioned fuel cell engine. The degassing instruction is an instruction for controlling degassing of the fluid pipeline;

[0075] Step S102: Determine a plurality of predetermined speeds according to the above minimum speed and the above maximum speed. Among them, the maximum value of the plurality of predetermined speeds is less than the above maximum speed, and the minimum value of the plurality of predetermined speeds is greater than the above minimum speed. The above minimum speed, the plurality of predetermined speeds, and the above maximum speed form a speed set.

[0076] Step S103: Control the above pump set to operate at the speeds in the above speed set in a predetermined order to remove the gas in the above fluid pipeline.

[0077] According to another typical embodiment of the present application, an FCU is further provided. The above FCU includes one or more processors, a memory, and one or more programs. Among them, the above one or more programs are stored in the above memory and are configured to be executed by the above one or more processors. The above one or more programs include those for executing any of the above methods.

[0078] The above FCU includes one or more processors, a memory, and one or more programs. Among them, the above one or more programs are stored in the above memory and are configured to be executed by the above one or more processors. The above one or more programs include those for executing any of the above methods. Compared with the problem in the prior art that the degassing work in the fuel cell engine cooling circuit needs to be manually controlled, resulting in uncontrollable degassing quality, the above FCU of the present application obtains the above speed set by acquiring the above minimum speed and the above maximum speed, and then controls the above pump set to operate at the speeds in the above speed set in the above predetermined order to automatically complete the degassing work. The above fuel cell engine runs at different speeds to achieve the purpose of removing the gas in the above fluid pipeline, ensuring better degassing quality of the above fuel cell engine, avoiding the problem in the prior art that the degassing work in the fuel cell engine cooling circuit needs to be manually controlled, resulting in uncontrollable degassing quality, and ensuring higher convenience and better degassing quality of the above fuel cell engine.

[0079] In a specific embodiment, by embedding the program corresponding to the control method of the above fuel cell engine into the FCU program, the staff only needs to start the above program so that the above fuel cell engine receives the above degassing instruction, and then the degassing work of the above fuel cell engine can be carried out. Among them, the above fuel cell engine will perform a gradient degassing method with different water pump speeds, that is, operate at the speeds in the above speed set in a predetermined order, and then combine the hot and cold machine degassing method, that is, change the temperature, and automatically determine whether the above degassing process is completed, ensuring higher degassing quality of the above fuel cell engine and at the same time ensuring less labor intensity of the staff.

[0080] Figure 3The following is a flowchart of the operation for the control of a fuel cell engine, which will be described in detail in conjunction with Figure 3 as follows.

[0081] In the case of receiving the above degassing instruction;

[0082] Run the above second control step, that is, control the above pump set to run at the above minimum speed for a second time at the above predetermined temperature;

[0083] Run the above third control step, that is, control the above pump set to run at the above predetermined temperature and a second predetermined speed for a third time, where the second predetermined speed is the speed in the above speed set that is greater than the above minimum speed and has the smallest difference from the above minimum speed;

[0084] Run the above determination step, that is, determine the speed in the above speed set that is greater than the above second predetermined speed and has the smallest difference from the above second predetermined speed as the new above second predetermined speed;

[0085] Run the above second loop step, that is, loop and execute the above third control step and the above determination step until the above pump set runs at the above maximum speed for the above third time;

[0086] Determine whether the above first ratio and the above second ratio are within the above predetermined range;

[0087] In the case where both the above first ratio and the above second ratio are within the above predetermined range, determine that the degassing process is completed;

[0088] In the case where the above first ratio or the above second ratio is not within the above predetermined range, run the above first control step, that is, control the above pump set to run at a target temperature condition and a first predetermined speed for a first time to achieve engine warm-up degassing, run the above calculation step, that is, calculate the above first ratio and the above second ratio after the above pump set runs at the above first predetermined speed for the above first time; run the above first loop step, that is, loop and execute the above first control step and the above calculation step until the above first ratio and the above second ratio are within the above predetermined range.

[0089] In the above embodiments of the present invention, the descriptions of each embodiment have their own focuses. For parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0090] In several embodiments provided by the present application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are merely illustrative. For example, the above division of units can be a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection of units or modules can be in an electrical or other form.

[0091] The units described above as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place, or they can be distributed to multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0092] In addition, in each embodiment of the present invention, each functional unit can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above integrated units can be implemented in the form of hardware or in the form of software functional units.

[0093] If the above integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the above methods in each embodiment of the present invention. The aforementioned storage medium includes: USB flash drives, read-only memories (ROMs), random access memories (RAMs), mobile hard disks, magnetic disks, or optical discs, etc., which can store program codes.

[0094] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0095] 1) In the control method of the fuel cell engine of the present application, first, when receiving a degassing instruction for controlling the degassing of the fluid pipeline, the minimum speed and the maximum speed of the pump set corresponding to the fluid pipeline of the fuel cell engine are obtained; then, according to the minimum speed and the maximum speed, a plurality of predetermined speeds located between the minimum speed and the maximum speed are determined, and the minimum speed, the plurality of predetermined speeds, and the maximum speed form a speed set; finally, the pump set is controlled to operate at the speeds in the speed set in a predetermined order to remove the gas in the fluid pipeline. Compared with the problem in the prior art that the degassing work in the cooling circuit of the fuel cell engine needs to be manually controlled, resulting in uncontrollable degassing quality, in the control method of the fuel cell engine of the present application, by obtaining the minimum speed and the maximum speed to obtain the speed set, and then controlling the pump set to operate at the speeds in the speed set in the predetermined order, the degassing work is automatically completed. The fuel cell engine achieves the purpose of removing the gas in the fluid pipeline by operating at different speeds, ensuring better degassing quality of the fuel cell engine, avoiding the problem in the prior art that the degassing work in the cooling circuit of the fuel cell engine needs to be manually controlled, resulting in uncontrollable degassing quality, and ensuring higher convenience and better degassing quality of the fuel cell engine.

[0096] 2) In the control device of the fuel cell engine of the present application, when the first acquisition unit receives a degassing instruction, it acquires the minimum speed and the maximum speed of the pump set corresponding to the fluid pipeline of the fuel cell engine, and the degassing instruction is an instruction for controlling the degassing of the fluid pipeline; the first determination unit determines a plurality of predetermined speeds according to the minimum speed and the maximum speed, wherein the maximum value of the plurality of predetermined speeds is less than the maximum speed, and the minimum value of the plurality of predetermined speeds is greater than the minimum speed, and the minimum speed, the plurality of predetermined speeds and the maximum speed form a speed set; the control unit controls the pump set to operate at the speeds in the speed set in a predetermined order to remove the gas in the fluid pipeline. Compared with the problem in the prior art that the degassing work in the cooling circuit of the fuel cell engine needs to be manually controlled, resulting in uncontrollable degassing quality, in the control device of the fuel cell engine of the present application, by acquiring the minimum speed and the maximum speed to obtain the speed set, and then controlling the pump set to operate at the speeds in the speed set in the predetermined order, the degassing work is automatically completed. The fuel cell engine achieves the purpose of removing the gas in the fluid pipeline by operating at different speeds, ensuring better degassing quality of the fuel cell engine, avoiding the problem in the prior art that the degassing work in the cooling circuit of the fuel cell engine needs to be manually controlled, resulting in uncontrollable degassing quality, and ensuring higher convenience and better degassing quality of the fuel cell engine.

[0097] 3) The above-mentioned FCU of the present application includes one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include those for executing any of the above-mentioned methods. Compared with the problem in the prior art that the degassing work in the cooling circuit of the fuel cell engine needs to be manually controlled, resulting in uncontrollable degassing quality, in the above-mentioned FCU of the present application, by acquiring the minimum speed and the maximum speed to obtain the speed set, and then controlling the pump set to operate at the speeds in the speed set in the predetermined order, the degassing work is automatically completed. The fuel cell engine achieves the purpose of removing the gas in the fluid pipeline by operating at different speeds, ensuring better degassing quality of the fuel cell engine, avoiding the problem in the prior art that the degassing work in the cooling circuit of the fuel cell engine needs to be manually controlled, resulting in uncontrollable degassing quality, and ensuring higher convenience and better degassing quality of the fuel cell engine.

[0098] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A control method for a fuel cell engine, characterized in that, The method includes: When receiving a degassing instruction, obtaining the minimum speed and the maximum speed of the pump set corresponding to the fluid pipeline of the fuel cell engine, where the degassing instruction is an instruction for controlling degassing of the fluid pipeline; According to the minimum speed and the maximum speed, determining a plurality of predetermined speeds, wherein the maximum value among the plurality of predetermined speeds is less than the maximum speed, the minimum value among the plurality of predetermined speeds is greater than the minimum speed, and the minimum speed, the plurality of predetermined speeds, and the maximum speed form a speed set; A second control step of controlling the pump set to operate at the minimum speed for a second time at a predetermined temperature, where the predetermined temperature is the set temperature when controlling the pump set to operate at the speeds in the speed set in sequence; A third control step of controlling the pump set to operate at the predetermined temperature and a second predetermined speed for a third time, where the second predetermined speed is the speed in the speed set that is greater than the minimum speed and has the smallest difference from the minimum speed; A determining step of determining the speed in the speed set that is greater than the second predetermined speed and has the smallest difference from the second predetermined speed as the new second predetermined speed; A second loop step of repeatedly executing the third control step and the determining step until the pump set operates at the maximum speed for the third time to remove the gas in the fluid pipeline; After removing the gas in the fluid pipeline, obtaining the rated working pressure and the actual pressure of the fluid pipeline, and obtaining the rated power and the actual power of the pump set; Calculating a ratio of the rated working pressure to the actual pressure to obtain a first ratio; Calculating a ratio of the rated power to the actual power to obtain a second ratio; A first control step of, when the first ratio or the second ratio is not within a predetermined range, controlling the pump set to operate at a target temperature condition and a first predetermined speed for a first time, where the first predetermined speed is one of the plurality of speeds in the speed set, and the target temperature is greater than the predetermined temperature; A calculating step of calculating the first ratio and the second ratio after the pump set operates at the first predetermined speed for the first time; A first loop step of repeatedly executing the first control step and the calculating step until the first ratio and the second ratio are within the predetermined range.

2. The method according to claim 1, characterized in that, Determining a plurality of predetermined speeds according to the minimum speed and the maximum speed includes: Determine a predetermined difference according to the minimum rotational speed and the maximum rotational speed, where the predetermined difference is (N max -N min ) × A%, where N max is the maximum rotational speed, N min is the minimum rotational speed, and A is a predetermined threshold; According to the predetermined difference, the minimum speed, and the maximum speed, determining a plurality of the predetermined speeds such that the difference between any two numerically adjacent predetermined speeds is the predetermined difference.

3. The method according to claim 1, characterized in that, After calculating the ratio of the rated power to the actual power to obtain the second ratio, the method further includes: When both the first ratio and the second ratio are within the predetermined range, determining that the degassing process is completed.

4. A control device for a fuel cell engine, characterized in that, The device includes: A first obtaining unit configured to, when receiving a degassing instruction, obtain the minimum speed and the maximum speed of the pump set corresponding to the fluid pipeline of the fuel cell engine, where the degassing instruction is an instruction for controlling degassing of the fluid pipeline; A first determination unit, configured to determine a plurality of predetermined speeds according to the minimum speed and the maximum speed, wherein the maximum value among the plurality of predetermined speeds is less than the maximum speed, the minimum value among the plurality of predetermined speeds is greater than the minimum speed, and the minimum speed, the plurality of predetermined speeds, and the maximum speed form a speed set; A control unit, configured to control the pump set to operate at the speeds in the speed set in a predetermined order to remove gas in the fluid pipeline; The device further includes: A second acquisition unit, configured to, after controlling the pump set to operate at the speeds in the speed set in a predetermined order, acquire the rated working pressure and the actual pressure of the fluid pipeline, and acquire the rated power and the actual power of the pump set; A first calculation unit, configured to calculate a ratio of the rated working pressure to the actual pressure to obtain a first ratio; A second calculation unit, configured to calculate a ratio of the rated power to the actual power to obtain a second ratio; An execution unit, configured to perform a predetermined operation when the first ratio or the second ratio is not within a predetermined range, so that the first ratio and the second ratio are within the predetermined range; The control unit includes: A second control module, configured to perform a second control step of controlling the pump set to operate at the minimum speed for a second time at the predetermined temperature; A third control module, configured to perform a third control step of controlling the pump set to operate at the predetermined temperature and a second predetermined speed for a third time, where the second predetermined speed is the speed in the speed set that is greater than the minimum speed and has the smallest difference from the minimum speed; A third determination module, configured to perform a determination step of determining that the speed in the speed set that is greater than the second predetermined speed and has the smallest difference from the second predetermined speed is the new second predetermined speed; A second loop module, configured to perform a second loop step of loop-executing the third control step and the determination step until the pump set operates at the maximum speed for the third time; The execution unit includes: A first control module, configured to perform a first control step of, when the first ratio or the second ratio is not within the predetermined range, controlling the pump set to operate at a target temperature condition and a first predetermined speed for a first time, where the first predetermined speed is one of the plurality of speeds in the speed set, the target temperature is greater than the predetermined temperature, and the predetermined temperature is the set temperature when controlling the pump set to operate at the speeds in the speed set in sequence; A calculation module, configured to perform a calculation step of calculating the first ratio and the second ratio after the pump set operates at the first predetermined speed for the first time; A first loop module, configured to perform a first loop step of loop-executing the first control step and the calculation step until the first ratio and the second ratio are within the predetermined range.

5. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, where the program executes the method according to any one of claims 1 to 3.

6. A processor, characterized in that, The processor is configured to run a program, where the program, when running, executes the method according to any one of claims 1 to 3.

7. An FCU, characterized in that, Includes: One or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs include those for performing the method according to any one of claims 1 to 3.

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