Fuel cell engine purging method and device, vehicle, medium and program product

Abstract

The invention relates to the technical field of intelligent vehicles, in particular to a fuel cell engine purging method and device, a vehicle, a medium and a program product.The method comprises the steps that the first humidity of the current environment of the vehicle is obtained, and under the condition that the first humidity is larger than or equal to the first preset humidity, the vehicle is started; and in-pile air of the fuel cell engine is dried through an air filter, second humidity of the dried in-pile air is obtained, the actual temperature of the current environment is obtained under the condition that the second humidity is smaller than the second preset humidity, and the target blowing mode is matched under the condition that the actual temperature is smaller than the preset temperature. And purging the fuel cell engine according to the target purging mode. Therefore, the problems that water is possibly generated in the PEMFC power generation process, the accumulated water possibly hinders gas circulation to influence hydrogen and oxygen supply along with the increase of reaction time, and components are broken due to freezing at low temperature are solved, so that the purging efficiency is effectively improved, and the purging time is shortened.

Description

Technical Field

[0001] The present application relates to the field of intelligent vehicle technology, and in particular to a fuel cell engine purging method, device, vehicle, medium and program product. Background Art

[0002] In related technologies, proton exchange membrane fuel cells (PEMFCs) are widely used, in which hydrogen is oxidized into protons and electrons at the anode, and oxygen is reduced at the cathode and combines with protons to form water. In this process, electrons cannot directly pass through the proton exchange membrane, and thus flow from the anode to the cathode through an external circuit, forming an electric current to drive a motor or other electrical equipment.

[0003] However, in the related technology, a certain amount of water will be produced during the process of power generation by air and hydrogen under the action of catalysts in the membrane electrode, and as the reaction time increases, water will accumulate in components such as the fuel cell stack, humidifier, and valves, which may hinder the flow of gas and affect the effective supply of hydrogen and oxygen. The accumulated water is prone to freeze under low temperature conditions, causing the membrane or other components to rupture, and the anode and cathode gases may diffuse with each other, causing electrode corrosion, which urgently needs to be improved. Summary of the invention

[0004] The present application provides a fuel cell engine purging method, device, vehicle, medium and program product to solve the problems in the related technology that a certain amount of water will be generated during the PEMFC power generation process, and as the reaction time increases, the accumulated water may hinder the gas circulation, affect the hydrogen and oxygen supply, easily freeze at low temperatures, causing component rupture, and may cause electrode corrosion.

[0005] A first aspect of the present application provides a fuel cell engine purging method, wherein an air filter having a drying layer is provided at an air intake end of the fuel cell engine, wherein the method comprises the following steps: obtaining a first humidity of a current environment of the vehicle; when the first humidity is greater than or equal to a first preset humidity, drying the incoming air of the fuel cell engine through the air filter, and obtaining a second humidity of the dried incoming air; when the second humidity is less than a second preset humidity, obtaining an actual temperature of the current environment, and matching a target purging method according to the actual temperature, so as to purge the fuel cell engine according to the target purging method.

[0006] Through the above technical solution, the air entering the fuel cell engine can be dried through the air filter, and the water content of the air after drying is lower, which can improve the efficiency of the purge process, ensure that the moisture inside the system is effectively removed, and match the target purge mode according to the actual temperature, which is conducive to optimizing the purge strategy under different temperature conditions. It can ensure that the fuel cell system is always in the best working state, improve the overall performance, simplify the operation process, and reduce the burden on users.

[0007] Optionally, in one embodiment of the present application, the method further includes: when the second humidity is greater than or equal to a second preset humidity, generating a replacement prompt for the desiccant layer to remind the user of replacement.

[0008] Through the above technical solution, when the second humidity is greater than or equal to the second preset humidity, a replacement prompt for the desiccant layer can be generated to remind the user of replacement, which helps to understand the condition of the desiccant layer and replace it in time, preventing system failure or abnormal behavior due to saturation of the desiccant layer, and reducing high maintenance costs and potential downtime.

[0009] Optionally, in one embodiment of the present application, it also includes: matching the target purge mode according to the actual temperature, including: based on the actual temperature, matching the target speed and continuous purge duration of the air compressor of each purge process of at least one purge process of the target purge mode.

[0010] Through the above technical solution, it is possible to reduce unnecessary energy consumption while ensuring effective purging by adjusting parameters such as the air compressor speed and purging time.

[0011] Optionally, in one embodiment of the present application, before obtaining the first humidity of the current environment of the vehicle, it also includes: determining whether a shutdown command of the fuel cell engine is received; if the shutdown command is received, controlling the vehicle to enter a fuel cell engine purge mode.

[0012] Through the above technical solution, a shutdown command can be sent when a shutdown situation is detected, which helps to ensure the safe shutdown of the fuel cell engine and prevent any potential safety problems. It can also update its internal state to ensure that all subsequent operations are performed based on the correct state information.

[0013] Optionally, in one embodiment of the present application, it also includes: when the first humidity is less than a first preset humidity, obtaining the actual temperature of the current environment, and matching the target purge mode according to the actual temperature to purge the fuel cell engine according to the target purge mode.

[0014] Through the above technical solution, the target purge mode can be matched according to the actual temperature, which can effectively adapt to the current environmental conditions, ensure that the purge can be carried out efficiently under different temperature conditions, and improve the efficiency and adaptability of the purge.

[0015] The second aspect of the present application provides a fuel cell engine purging device, wherein an air filter with a drying layer is provided at the air intake end of the fuel cell engine, wherein the device comprises: an acquisition module for acquiring a first humidity of the current environment of the vehicle; a drying module for drying the incoming air of the fuel cell engine through the air filter when the first humidity is greater than or equal to a first preset humidity, and acquiring a second humidity of the dried incoming air; a first purge module for acquiring an actual temperature of the current environment when the second humidity is less than a second preset humidity, and matching a target purge mode according to the actual temperature, so as to purge the fuel cell engine according to the target purge mode.

[0016] Through the above technical scheme, the fuel cell engine purge device can dry the air entering the fuel cell engine through the air filter, so that the water content of the air after drying is lower, which can improve the efficiency of the purge process, ensure that the moisture inside the system is effectively removed, and match the target purge mode according to the actual temperature, which is conducive to optimizing the purge strategy under different temperature conditions. It can ensure that the fuel cell system is always in the best working state, improve the overall performance, simplify the operation process, and reduce the burden on users.

[0017] Optionally, in one embodiment of the present application, it further includes: a reminder module, which is used to generate a replacement reminder for the desiccant layer when the second humidity is greater than or equal to the second preset humidity, so as to remind the user to replace the desiccant layer.

[0018] Through the above technical solution, the reminder module can generate a replacement reminder for the desiccant layer when the second humidity is greater than or equal to the second preset humidity, so as to remind the user of replacement, which helps to understand the condition of the desiccant layer and replace it in time, prevent system failure or abnormal behavior caused by saturation of the desiccant layer, and reduce high maintenance costs and potential downtime.

[0019] Optionally, in one embodiment of the present application, the first purge module includes: a matching unit, configured to match a target speed and a continuous purge duration of an air compressor for each purge process of at least one purge process of the target purge mode based on the actual temperature.

[0020] Through the above technical solution, the matching unit can reduce unnecessary energy consumption while ensuring effective purging by adjusting parameters such as the air compressor speed and purging time.

[0021] Optionally, in one embodiment of the present application, it also includes: a judgment module, used to judge whether a shutdown command of the fuel cell engine is received before obtaining the first humidity of the current environment of the vehicle; and a control module, used to control the vehicle to enter a fuel cell engine purge mode if the shutdown command is received.

[0022] Through the above technical solution, the control module can send a shutdown command when it detects a situation where shutdown is required, which helps to ensure the safe shutdown of the fuel cell engine and prevent any potential safety issues. It can also update its internal state to ensure that all subsequent operations are performed based on the correct state information.

[0023] Optionally, in one embodiment of the present application, it also includes: a second purge module, which is used to obtain the actual temperature of the current environment when the first humidity is less than the first preset humidity, and match the target purge mode according to the actual temperature to purge the fuel cell engine according to the target purge mode.

[0024] Through the above technical solution, the second purge module can match the target purge mode according to the actual temperature, can effectively adapt to the current environmental conditions, ensure efficient purge under different temperature conditions, and improve the efficiency and adaptability of purge.

[0025] A third aspect of the present application provides a vehicle, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the fuel cell engine purging method as described in the above embodiment.

[0026] A fourth aspect of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, which, when executed by a processor, implements the above-mentioned fuel cell engine purging method.

[0027] A fifth aspect of the present application provides a computer program product, including a computer program, which implements the above fuel cell engine purging method when executed.

[0028] The embodiment of the present application can obtain the first humidity of the current environment of the vehicle, and when the first humidity is greater than or equal to the first preset humidity, dry the air entering the fuel cell engine through the air filter, and obtain the second humidity of the dried air entering the stack, so that when the second humidity is less than the second preset humidity, the actual temperature of the current environment is obtained, and the target purge mode is matched according to the actual temperature, so as to purge the fuel cell engine according to the target purge mode, so that different purge modes can be selected according to different environmental humidity, effectively ensuring the effectiveness of the drying process, avoiding moisture accumulation, and ensuring stable operation under various environmental conditions, which is conducive to improving the overall performance and durability of the fuel cell. Thus, the problem in the related art that a certain amount of water will be generated during the PEMFC power generation process, and as the reaction time increases, the accumulated water may hinder the gas circulation, affect the supply of hydrogen and oxygen, and easily freeze at low temperatures to cause component rupture, and may cause electrode corrosion.

[0029] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0031] Figure 1 A flowchart of a fuel cell engine purging method provided according to an embodiment of the present application;

[0032] Figure 2 is a schematic structural diagram of an air filter with a drying layer according to an embodiment of the present application;

[0033] Figure 3 It is a schematic diagram of the principle of fuel cell engine purging according to one embodiment of the present application;

[0034] Figure 4 is a flow chart of a fuel cell engine purging method according to one embodiment of the present application;

[0035] Figure 5 A schematic block diagram of a fuel cell engine purge device provided according to an embodiment of the present application;

[0036] Figure 6 It is a schematic diagram of the structure of a vehicle provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0037] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0038] The following describes the fuel cell engine purging method, device, vehicle, medium and program product of the embodiment of the present application with reference to the accompanying drawings. In view of the related art mentioned in the background technology center, since a certain amount of water will be generated during the PEMFC power generation process, and as the reaction time increases, the accumulated water may hinder the gas circulation, affect the supply of hydrogen and oxygen, and easily freeze at low temperatures to cause component rupture, and may cause electrode corrosion problems, the present application provides a fuel cell engine purging method, in which the first humidity of the current environment of the vehicle can be obtained, and when the first humidity is greater than or equal to the first preset humidity, the inlet air of the fuel cell engine is dried through the air filter, and the second humidity of the dried inlet air is obtained, so that when the second humidity is less than the second preset humidity, the actual temperature of the current environment is obtained, and the target purging method is matched according to the actual temperature, so that the fuel cell engine is purged according to the target purging method, so that different purging methods can be selected according to different environmental humidity, effectively ensuring the effectiveness of the drying process, avoiding water accumulation, and ensuring stable operation under various environmental conditions, which is conducive to improving the overall performance and durability of the fuel cell. This solves the problem in the related art that a certain amount of water will be produced during the PEMFC power generation process, and as the reaction time increases, the accumulated water may hinder the gas circulation, affect the supply of hydrogen and oxygen, easily freeze at low temperatures, causing component rupture, and may cause electrode corrosion and other problems.

[0039] Specifically, Figure 1 A schematic flow chart of a fuel cell engine purging method provided in an embodiment of the present application.

[0040] like Figure 1 As shown, the fuel cell engine purging method, wherein an air filter having a drying layer is provided at the air intake end of the fuel cell engine, comprises the following steps:

[0041] In step S101 , a first humidity of a current environment of the vehicle is obtained.

[0042] It can be understood that the first humidity refers to the current ambient humidity X0 acquired by the humidity sensor 1 .

[0043] Specifically, combined Figure 2 and Figure 3As shown, the embodiment of the present application designs an air filter with an integrated drying layer, and is arranged at the air intake end of the fuel cell engine, and the embodiment of the present application arranges a humidity sensor 1 in front of the air inlet of the air filter, so as to obtain the first humidity X0 of the current environment. Among them, there are many types of humidity sensors, including but not limited to resistive, capacitive or infrared humidity sensors.

[0044] The embodiment of the present application obtains the first humidity of the current environment of the vehicle, which is conducive to obtaining accurate environmental information and providing an information basis for the subsequent selection of a purging method.

[0045] Optionally, in one embodiment of the present application, before obtaining the first humidity of the current environment of the vehicle, it also includes: determining whether a shutdown command of the fuel cell engine is received; if a shutdown command is received, controlling the vehicle to enter a fuel cell engine purge mode.

[0046] It can be understood that the shutdown instruction refers to a signal or command for the fuel cell engine to stop running and enter a shutdown procedure.

[0047] Specifically, combined Figure 4 As shown, in step S401, the embodiment of the present application determines whether a shutdown command is received. If not, the process ends directly. If a signal or command is received from the main controller or other related system of the vehicle to stop the fuel cell engine and enter the shutdown program, the vehicle is controlled to enter the fuel cell engine purge mode, wherein, in combination with Figure 3 As shown, the fuel cell engine purge system includes an air supply subsystem and a thermal management subsystem. The air supply subsystem includes an air filter, a flow meter, an air compressor, an intercooler, a humidifier, a flow valve 1, a flow valve 2, an electronic throttle, a hydrogen dilution device, and a humidity sensor; the thermal management subsystem includes a water pump, a radiator, and a three-way valve. The hydrogen supply subsystem includes a pressure reducing valve, a hydrogen return device, a water separator, a hydrogen discharge solenoid valve, a water discharge solenoid valve, and a pressure sensor.

[0048] In the actual implementation process, the air filter is used to filter physical and chemical impurities in the air, and optionally to filter moisture in the air. The flow meter is used to measure the air flow, the air compressor is used to pressurize the air, the intercooler is used to cool the pressurized high-temperature air, and the humidifier is used to humidify the air entering the stack. Flow valve 1 and flow valve 2 are used to control the opening and closing of air filter air outlets 1 and 2. When flow valve 1 is opened, air flows out of the air filter from air outlet 1 without passing through the drying layer; when flow valve 2 is opened, air flows out of the air filter from air outlet 2 and passes through all drying layers; the humidity of the purge air is controlled by opening and closing flow valves 1 and 2. The temperature sensor in the thermal management subsystem is used to measure the temperature of the stack coolant inlet, and the radiator is used to dissipate heat for the stack and the intercooler. The water pump keeps the coolant running, and the three-way valve adjusts the coolant flow through the intercooler and the stack. The pressure reducing valve of the hydrogen supply subsystem is used to adjust the pressure of hydrogen entering the fuel cell stack. The hydrogen return device is used to recover the hydrogen after the reaction at the fuel cell stack outlet. The hydrogen exhaust solenoid valve discharges the waste hydrogen of the system, and the water discharge solenoid valve discharges the waste water of the system.

[0049] The embodiment of the present application sends a shutdown command when a shutdown situation is detected, which helps to ensure the safe shutdown of the fuel cell engine and prevent any potential safety issues. It can also update its internal state to ensure that all subsequent operations are performed based on the correct state information.

[0050] In step S102, when the first humidity is greater than or equal to the first preset humidity, the inlet air of the fuel cell engine is dried through an air filter, and the second humidity of the dried inlet air is obtained.

[0051] It is understandable that if Figure 2 As shown, the air filter integrates a drying layer. On the basis of achieving physical filtration and chemical filtration, water-absorbent substances are added to the filter element, which can remove moisture from the air entering the air filter. The filter element can be directly inserted and replaced by opening one side of the outer shell, and the replacement is simple and convenient.

[0052] Specifically, combined Figure 4 As shown, in step S402, the embodiment of the present application obtains the first humidity X0 of the current environment, and in step S403, determines whether the first humidity X0 is greater than or equal to the first preset humidity X1, so as shown in step S404, in the embodiment of the present application, when the first humidity X0 is greater than or equal to the first preset humidity X1, it indicates that the current humidity is high, then the flow valve 2 is opened, the flow valve 1 is closed, the inlet air of the fuel cell engine is dried through the air filter, and the humidity sensor 2 is used to obtain the second humidity X2 of the dried inlet air at the air outlet 2.

[0053] In the embodiment of the present application, when the first humidity is greater than or equal to the first preset humidity, the air entering the fuel cell engine is dried through an air filter, which is beneficial to ensuring the effectiveness of the drying process and avoiding moisture accumulation. The air after the drying process has a lower moisture content, which can improve the efficiency of the purge process and ensure that the moisture inside the system is effectively removed.

[0054] Optionally, in one embodiment of the present application, it also includes: when the first humidity is less than the first preset humidity, obtaining the actual temperature of the current environment, and matching the target purge mode according to the actual temperature to purge the fuel cell engine according to the target purge mode.

[0055] It can be understood that the target purge mode refers to the best purge strategy matched according to the actual humidity and temperature of the current environment.

[0056] Specifically, combined Figure 4 As shown, in the embodiment of the present application, when the first humidity X0 is less than the first preset humidity X1, it indicates that the current environmental humidity is low. Then, as shown in step S405, flow valve 1 is opened, flow valve 2 is closed, and the air entering the stack is not dried through the drying layer, and the actual temperature T0 of the current environment is obtained. Then, as shown in step S406, it is determined whether the actual temperature T0 of the current environment is less than the preset temperature T; if T0 is less than T, it indicates that the current environmental temperature is low and the purge time needs to be extended. The first air compressor speed R1 and the first purge time T1 are set to perform the first stage of purge until the first stage cumulative purge time T2 ≥ the first purge time T1. After the first stage of purge is completed, the air compressor speed is reduced, and the second air compressor speed R2 and the second purge time T3 are set to perform the second stage of purge until the second stage cumulative purge time T4 ≥ the second purge time T3, and the air path purge is completed.

[0057] If T0 is greater than or equal to T, the third air compressor speed R3 and the third purge time T5 are set to perform the first stage purge until the first stage cumulative purge time T6 ≥ the third purge time T5, and after the first stage purge is completed, the air compressor speed is reduced, and the fourth air compressor speed R4 and the fourth purge time T7 are set to perform the second stage purge until the second stage cumulative purge time T8 ≥ the fourth purge time T7, and the air path purge is completed. Among them, R1>R3>R2>R4, T1>T5, T3>T7.

[0058] The embodiment of the present application matches the target purge mode according to the actual temperature, can effectively adapt to the current environmental conditions, ensure efficient purge under different temperature conditions, and reduce unnecessary energy consumption while ensuring effective purge by adjusting parameters such as the air compressor speed and purge time.

[0059] In step S103, when the second humidity is less than the second preset humidity, the actual temperature of the current environment is obtained, and the target purge mode is matched according to the actual temperature to purge the fuel cell engine according to the target purge mode.

[0060] Specifically, combined Figure 4 As shown, in step S407, in the embodiment of the present application, when the second humidity X2 is less than the second preset humidity X3, it indicates that the current drying layer is effective, and then the actual temperature Y0 of the current environment is obtained, and as shown in step S408, by judging whether the actual temperature Y0 of the current environment is less than the preset temperature Y; if Y0 is less than Y, it means that the current ambient temperature is low and the purge time needs to be extended. Optionally, in one embodiment of the present application, the target purge mode is matched according to the actual temperature, including: based on the actual temperature, matching the target speed and continuous purge duration of the air compressor of each purge process of at least one purge process of the target purge mode. For example, the first air compressor speed C1 and the first purge time Z1 are set to perform the first stage purge until the first stage cumulative purge time Z2 ≥ the first purge time Z1, and after the first stage purge is completed, the air compressor speed is reduced, and the second air compressor speed C2 and the second purge time Z3 are set to perform the second stage purge until the second stage cumulative purge time Z4 ≥ the second purge time Z3, and the air path purge is completed.

[0061] If Y0 is greater than or equal to Y, the third air compressor speed C3 and the third purge time Z5 are set to perform the first stage purge until the first stage cumulative purge time Z6 ≥ the third purge time Z5, and after the first stage purge is completed, the air compressor speed is reduced, and the fourth air compressor speed C4 and the fourth purge time Z7 are set to perform the second stage purge until the second stage cumulative purge time Z8 ≥ the fourth purge time Z7, and the air path purge is completed. Among them, C1>C3>C2>C4, Z1>Z5, Z3>Z7.

[0062] The embodiment of the present application matches the target purge mode according to the actual temperature to purge the fuel cell engine according to the target purge mode, which is beneficial to optimizing the purge strategy under different temperature conditions to ensure that the fuel cell system is always in the best working state and improve the overall performance. By automatically matching the purge strategy according to environmental conditions, the operating process can be simplified and the burden on users can be reduced.

[0063] Optionally, in one embodiment of the present application, the method further includes: generating a replacement prompt for the desiccant layer when the second humidity is greater than or equal to the second preset humidity, so as to remind the user to replace the desiccant layer.

[0064] It is understandable that the reminder may be in the form of lighting a red warning light or displaying a specific icon on the dashboard, or by voice prompting.

[0065] Specifically, combined Figure 4 As shown, in step S409, the embodiment of the present application can generate a reminder to replace the drying layer when the second humidity X2 is greater than or equal to the second preset humidity X3, such as displaying a specific icon on the dashboard to remind the user of the replacement, and then the embodiment of the present application can achieve air path purging through steps S405 and S406.

[0066] In the embodiment of the present application, when the second humidity is greater than or equal to the second preset humidity, a replacement prompt for the desiccant layer is generated to remind the user of replacement, which helps to understand the condition of the desiccant layer and replace it in time, prevent system failure or abnormal behavior due to saturation of the desiccant layer, and reduce high maintenance costs and potential downtime.

[0067] According to the fuel cell engine purging method proposed in the embodiment of the present application, the first humidity of the current environment of the vehicle can be obtained, and when the first humidity is greater than or equal to the first preset humidity, the air entering the fuel cell engine is dried through the air filter, and the second humidity of the dried air entering the stack is obtained, so that when the second humidity is less than the second preset humidity, the actual temperature of the current environment is obtained, and the target purging method is matched according to the actual temperature, so that the fuel cell engine is purged according to the target purging method, so that different purging methods can be selected according to different environmental humidity, effectively ensuring the effectiveness of the drying process, avoiding moisture accumulation, and ensuring stable operation under various environmental conditions, which is conducive to improving the overall performance and durability of the fuel cell. Thus, the problem in the related art that a certain amount of water will be generated during the PEMFC power generation process, and as the reaction time increases, the accumulated water may hinder the gas circulation, affect the supply of hydrogen and oxygen, and easily freeze at low temperatures to cause component rupture, and may cause electrode corrosion.

[0068] Next, the fuel cell engine purge device proposed in accordance with the embodiment of the present application will be described with reference to the accompanying drawings.

[0069] Figure 5 It is a block diagram of a fuel cell engine purge device according to an embodiment of the present application.

[0070] like Figure 5 As shown, the fuel cell engine purge device 10 , wherein an air filter with a drying layer is provided at the air intake end of the fuel cell engine, and the device 10 comprises: an acquisition module 100 , a drying module 200 and a first purge module 300 .

[0071] Specifically, the acquisition module 100 is used to acquire a first humidity of the current environment of the vehicle.

[0072] The drying module 200 is used to dry the incoming air of the fuel cell engine through an air filter when the first humidity is greater than or equal to the first preset humidity, and obtain the second humidity of the dried incoming air.

[0073] The first purge module 300 is used to obtain the actual temperature of the current environment when the second humidity is less than the second preset humidity, and match the target purge mode according to the actual temperature to purge the fuel cell engine according to the target purge mode.

[0074] Optionally, in one embodiment of the present application, it further includes: a reminder module, which is used to generate a replacement reminder for the desiccant layer when the second humidity is greater than or equal to the second preset humidity, so as to remind the user to replace the desiccant layer.

[0075] Optionally, in one embodiment of the present application, the first purge module 300 includes: a matching unit for matching the target speed and continuous purge duration of the air compressor of each purge process of at least one purge process of the target purge mode based on the actual temperature.

[0076] Optionally, in one embodiment of the present application, it also includes: a judgment module, used to judge whether a shutdown command of the fuel cell engine is received before obtaining the first humidity of the current environment of the vehicle; and a control module, used to control the vehicle to enter the fuel cell engine purge mode if a shutdown command is received.

[0077] Optionally, in one embodiment of the present application, it also includes: a second purge module, which is used to obtain the actual temperature of the current environment when the first humidity is less than the first preset humidity, and match the target purge mode according to the actual temperature to purge the fuel cell engine according to the target purge mode.

[0078] It should be noted that the above explanations of the fuel cell engine purging method embodiment are also applicable to the fuel cell engine purging device of this embodiment, and will not be repeated here.

[0079] According to the fuel cell engine purging device proposed in the embodiment of the present application, the first humidity of the current environment of the vehicle can be obtained, and when the first humidity is greater than or equal to the first preset humidity, the air entering the fuel cell engine is dried through the air filter, and the second humidity of the dried air entering the stack is obtained, so that when the second humidity is less than the second preset humidity, the actual temperature of the current environment is obtained, and the target purging method is matched according to the actual temperature, so that the fuel cell engine is purged according to the target purging method, so that different purging methods can be selected according to different environmental humidity, effectively ensuring the effectiveness of the drying process, avoiding moisture accumulation, and ensuring stable operation under various environmental conditions, which is conducive to improving the overall performance and durability of the fuel cell. Thus, the problem in the related art that a certain amount of water will be generated during the PEMFC power generation process, and as the reaction time increases, the accumulated water may hinder the gas circulation, affect the supply of hydrogen and oxygen, and easily freeze at low temperatures to cause component rupture, and may cause electrode corrosion.

[0080] Figure 6 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application. The vehicle may include:

[0081] A memory 601 , a processor 602 , and a computer program stored in the memory 601 and executable on the processor 602 .

[0082] When the processor 602 executes the program, the fuel cell engine purging method provided in the above embodiment is implemented.

[0083] Furthermore, the vehicle also includes:

[0084] The communication interface 603 is used for communication between the memory 601 and the processor 602 .

[0085] The memory 601 is used to store computer programs that can be executed on the processor 602 .

[0086] The memory 601 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0087] If the memory 601, the processor 602 and the communication interface 603 are implemented independently, the communication interface 603, the memory 601 and the processor 602 can be connected to each other through a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 6 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0088] Optionally, in a specific implementation, if the memory 601, the processor 602 and the communication interface 603 are integrated on a chip, the memory 601, the processor 602 and the communication interface 603 can communicate with each other through an internal interface.

[0089] The processor 602 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0090] An embodiment of the present application also provides a computer-readable storage medium having a computer program stored thereon, which implements the above-mentioned fuel cell engine purging method when executed by a processor.

[0091] An embodiment of the present application also provides a computer program product, including a computer program, which implements the above fuel cell engine purging method when executed.

[0092] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0093] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0094] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or N executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0095] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or N wirings (electronic devices), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways as necessary and then storing it in a computer memory.

[0096] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented by hardware, as in another embodiment, it can be implemented by any one or a combination of multiple of the following technologies known in the art: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0097] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0098] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0099] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A fuel cell engine purging method, characterized in that: The air intake end of the fuel cell engine is provided with an air filter having a drying layer, wherein the method comprises the following steps: Obtaining a first humidity of a current environment of the vehicle; When the first humidity is greater than or equal to a first preset humidity, drying the incoming air of the fuel cell engine through the air filter, and obtaining a second humidity of the dried incoming air; When the second humidity is less than the second preset humidity, the actual temperature of the current environment is acquired, and a target purge mode is matched according to the actual temperature, so as to purge the fuel cell engine according to the target purge mode.

2. The method according to claim 1, characterized in that Also includes: When the second humidity is greater than or equal to the second preset humidity, a replacement reminder for the desiccant layer is generated to remind the user of replacement.

3. The method according to claim 1, characterized in that The matching of the target purge mode according to the actual temperature includes: Based on the actual temperature, a target speed of the air compressor and a continuous purge duration of each purge process of at least one purge process of the target purge mode are matched.

4. The method according to claim 1, characterized in that: Before obtaining the first humidity of the current environment of the vehicle, the method further includes: determining whether a shutdown instruction of the fuel cell engine is received; If the shutdown command is received, the vehicle is controlled to enter a fuel cell engine purge mode.

5. The method according to claim 1, characterized in that Also includes: When the first humidity is less than a first preset humidity, the actual temperature of the current environment is acquired, and a target purge mode is matched according to the actual temperature, so as to purge the fuel cell engine according to the target purge mode.

6. A fuel cell engine purge device, characterized in that: The air intake end of the fuel cell engine is provided with an air filter having a drying layer, wherein the device comprises: An acquisition module, used to acquire a first humidity of a current environment of the vehicle; a drying module, configured to dry the inlet air of the fuel cell engine through the air filter when the first humidity is greater than or equal to a first preset humidity, and obtain a second humidity of the inlet air after drying; The purge module is used to obtain the actual temperature of the current environment when the second humidity is less than the second preset humidity, and match the target purge mode according to the actual temperature to purge the fuel cell engine according to the target purge mode.

7. The device according to claim 6, characterized in that Also includes: The reminder module is used to generate a replacement reminder for the desiccant layer when the second humidity is greater than or equal to a second preset humidity, so as to remind the user to replace the desiccant layer.

8. A vehicle, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the fuel cell engine purging method according to any one of claims 1 to 5.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the fuel cell engine purging method according to any one of claims 1 to 5.

10. A computer program product, comprising a computer program, characterized in that The computer program is executed to implement the fuel cell engine purging method according to any one of claims 1 to 5.

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