Heat preservation method and device for vehicle fuel cell

Abstract

The invention provides a heat preservation method and device for a vehicle fuel cell. The method comprises the following steps: acquiring reserved travel information of a vehicle; based on the reserved travel information, the reserved travel information is used for indicating that the vehicle is to be used after a target duration, the target duration is positively correlated with the temperature difference between the environment temperature of the vehicle and the preset temperature capable of being normally output by the fuel cell of the vehicle, and the starting heating time for heating the fuel cell in advance is determined; and when the heating starting time is up, the fuel cell starts to be heated to a preset temperature, so that when the vehicle starts to travel, the fuel cell can meet a power request or a voltage request of the vehicle. According to the method, the reserved travel information of the vehicle is obtained, and after it is determined that the fuel cell can be heated to the preset temperature before the vehicle is used according to the reserved travel information, the advanced heating time is accurately determined according to the reserved travel information, so that normal output of the fuel cell can be ensured, and meanwhile, energy consumption of heat preservation of the fuel cell can be saved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of fuel cells, and in particular to a method for heat preservation of a vehicle fuel cell, a heat preservation device for a vehicle fuel cell, an electronic device, and a computer-readable storage medium. Background Art

[0002] Fuel cells convert chemical energy into electrical energy by chemically reacting fuel with oxidants. They are highly efficient, environmentally friendly, and have zero emissions, and are being used more and more widely. One of their specific uses is to use fuel cells in vehicles.

[0003] A fuel cell system is installed in the vehicle. The fuel cell system is centered on the fuel cell and also includes a fuel supply and circulation system, an oxidant supply system, a water / heat management system, and a control system. When the vehicle generates a relevant power request, for example, when the vehicle needs power from the fuel cell system to start the vehicle, or when the vehicle needs power from the fuel cell system to turn on the air conditioner in the vehicle, the fuel cell system will power the corresponding components of the vehicle based on the relevant power request.

[0004] However, in the process of realizing the invention, the inventors found that in low temperature environment, the cold start performance of the fuel cell will be significantly reduced, and the electrochemical reaction rate inside the fuel cell will slow down. In this scenario, if the vehicle needs to be powered by the fuel cell system, the power or voltage output by the fuel cell system cannot meet the actual needs of the vehicle, thereby reducing the overall performance of the vehicle. Summary of the invention

[0005] A technical problem to be solved by the present disclosure is to ensure that the output power and voltage of the fuel cell system can meet the vehicle's needs in real time and improve the overall performance of the vehicle.

[0006] To solve the above technical problems, an embodiment of the present disclosure provides a method for keeping warm a vehicle fuel cell, which is applied to a heat preservation device for a vehicle fuel cell, and includes: obtaining scheduled trip information of a vehicle, the scheduled trip information is used to indicate that the vehicle will be used after a target duration, and the target duration is positively correlated with the temperature difference between the ambient temperature of the vehicle and a preset temperature that the vehicle's fuel cell can normally output; based on the scheduled trip information, determining a start heating time for starting heating of the fuel cell in advance; when the start heating time is reached, starting to heat the fuel cell to the preset temperature, so that when the vehicle starts its journey, the fuel cell can meet the vehicle's power request or voltage request.

[0007] Through the above technical scheme, the insulation method of the vehicle fuel cell provided by the present invention obtains the vehicle's scheduled trip information, and after determining that the fuel cell can be heated to a preset temperature before the vehicle is used through the scheduled trip information, the time when the driver uses the vehicle is accurately determined according to the scheduled trip information, and then the time for advance heating is accurately determined, thereby achieving accurate heating of the vehicle fuel cell, so that the fuel cell is heated just when the driver is using the vehicle, which ensures that the fuel cell can output normally while saving energy consumption for fuel cell insulation.

[0008] In some embodiments, the device includes a mobile terminal, a cloud platform and a controller, the mobile terminal and the cloud platform are located outside the vehicle, and the controller is located inside the vehicle; obtaining the vehicle's scheduled travel information, including: the cloud platform obtains the scheduled travel information sent by the application in the mobile terminal; based on the scheduled travel information, determining the start heating time for starting heating of the fuel cell in advance, including: the cloud platform determines the vehicle's scheduled travel time according to the scheduled travel information, and sends a fuel cell temperature acquisition indication to the controller; receiving the current battery temperature feedback from the controller based on the fuel cell temperature acquisition indication; determining the start heating time according to the current battery temperature and the scheduled travel time, and sending the start heating time to the controller, so that the controller controls the heating of the fuel cell at the start heating time.

[0009] The driver inputs the scheduled trip information through the mobile application, which improves the flexibility of inputting the scheduled trip information. In addition, the scheduled trip information is processed through the cloud platform, and the start heating time is finally output to the vehicle controller, which can reduce the amount of information processing of the vehicle and reduce the energy consumption of the vehicle.

[0010] In some embodiments, before the cloud platform obtains the reservation itinerary information sent by the application in the mobile terminal, the method also includes: the target application in the mobile terminal obtains search navigation information from the navigation application in the mobile terminal, the search navigation information including travel time, departure place and destination; outputs a reservation confirmation prompt based on the search navigation information; in response to the reservation confirmation information based on the reservation confirmation prompt, determines the search navigation information as reservation itinerary information, and sends the reservation itinerary information to the cloud platform.

[0011] By automatically generating reservation information through the driver's search in the navigation application of the mobile terminal, it can save the driver from having to make separate reservation operations for the trip, thus improving the user experience of the reservation trip.

[0012] In some embodiments, the controller includes a vehicle-mounted terminal and a fuel cell system main controller; after sending a fuel cell temperature acquisition indication to the controller, the method also includes: the vehicle-mounted terminal obtains the current temperature of the fuel cell in response to the fuel cell temperature acquisition indication; determines whether the current temperature is less than a preset temperature, and determines whether the vehicle's external charging gun is normally connected, wherein the temperature of the fuel cell is less than the preset temperature, and the fuel cell cannot meet the vehicle's power request or voltage request; if both are yes, the current temperature is determined as the current temperature of the battery, and the current temperature of the battery is sent to the cloud platform to wake up the fuel cell system main controller according to the start heating time fed back by the cloud platform, so that the fuel cell system main controller controls the external power supply to provide electrical energy to the fuel cell heater; if at least one item is no, a prompt message is fed back to the cloud platform that the fuel cell does not need to be heated in advance or a prompt message that the fuel cell is self-heated in advance through the target electrical appliance in the vehicle.

[0013] When the fuel cell is currently at a low temperature and is being charged, the fuel cell system main controller can be awakened by the vehicle terminal according to the start heating time, which can reduce the energy consumption of the fuel cell being charged. In addition, the fuel cell system main controller can control the external power supply to heat the fuel cell, reducing the energy consumption of the vehicle for the fuel cell insulation. And when the fuel cell is currently at a low temperature but not charged, the fuel cell can be controlled to power the target electrical appliances in the vehicle. By powering the target electrical appliances, the driver can prepare the vehicle in advance, improve driving comfort, and gradually put the fuel cell into normal use, reducing the energy consumption of the fuel cell insulation.

[0014] In some embodiments, the start heating time is determined based on the current temperature of the battery and the scheduled travel time, including: determining the heating time corresponding to the current temperature of the battery from a data table, the data table storing the heating time corresponding to different current temperatures, the heating time being calculated in advance based on the current temperature, the preset temperature and the heating rate; judging whether the heating time exceeds the preset time; if so, multiplying the heating time by a preset coefficient to obtain the actual heating time, wherein the preset coefficient is a value greater than 1; if not, determining the heating time as the actual heating time; and determining the start heating time based on the actual heating time and the scheduled travel time.

[0015] If the heating time is long, it means that the current ambient temperature of the fuel cell is low. Considering that low temperature affects the heating efficiency, by increasing the heating time, it can ensure that the fuel cell eventually reaches the preset temperature, thereby improving the accuracy of the fuel cell heating and insulation.

[0016] In some embodiments, after sending the start heating time to the controller, the method also includes: the controller obtains multiple temperature values ​​of the fuel cell within a preset time period; generates a temperature change trend of the fuel cell based on the multiple temperature values; determines whether the temperature change trend indicates stability; if so, the controller controls the heating of the fuel cell at the start heating time; if not, if the temperature change trend indicates an increase, the start heating time is delayed, and if the temperature change trend indicates a decrease, the heating time is started in advance.

[0017] After determining the startup heating time, the startup heating time is adaptively adjusted according to the temperature change trend of the fuel cell thereafter, to ensure that the fuel cell is heated up just when the driver starts the vehicle, taking into account the dynamic changes in ambient temperature and achieving precise insulation of the fuel cell.

[0018] In some embodiments, starting to heat the fuel cell to a preset temperature includes: monitoring the real-time temperature of the fuel cell, wherein the closer the real-time temperature is to the preset temperature, the higher the monitoring frequency; determining whether the real-time temperature has reached the preset temperature; if so, stopping heating the fuel cell and continuing to monitor the real-time temperature of the fuel cell, and when the real-time temperature is lower than the cut-off temperature, heating the fuel cell again until the vehicle starts; if not, continuing to monitor the real-time temperature of the fuel cell.

[0019] The real-time temperature of the fuel cell is used to dynamically adjust whether the fuel cell is heated or not, so that the fuel cell can be maintained in a suitable temperature range before actual use. Even if the driver does not travel exactly at the scheduled time, the fuel cell can still output power or voltage normally for the vehicle at any time. In addition, the frequency of fuel cell temperature monitoring is higher when it is closer to the preset temperature, which can achieve precise control of fuel cell heating.

[0020] The disclosed embodiment also provides a thermal insulation device for a vehicle fuel cell, the device comprising: an acquisition module, used to acquire scheduled travel information of the vehicle, the scheduled travel information is used to indicate that the vehicle will be used after a target duration, the target duration is positively correlated with the temperature difference between the ambient temperature of the vehicle and a preset temperature that the fuel cell of the vehicle can normally output; a determination module, used to determine a start heating time for starting heating of the fuel cell in advance based on the scheduled travel information; a heating module, used to start heating the fuel cell to a preset temperature when the start heating time is reached, so that when the vehicle starts its journey, the fuel cell can meet the power request or voltage request of the vehicle.

[0021] An embodiment of the present disclosure also provides an electronic device, which includes: a processor, a memory, and a bus; wherein the processor and the memory communicate with each other through the bus; and the processor is used to call program instructions in the memory to execute the method in the first aspect.

[0022] An embodiment of the present disclosure further provides a computer-readable storage medium, which includes: a stored program; wherein when the program is running, the device where the storage medium is located is controlled to execute the method in the first aspect.

[0023] The thermal insulation device, electronic device and computer-readable storage medium for a vehicle fuel cell provided in the embodiments of the present disclosure have the same or similar beneficial effects as the thermal insulation method for a vehicle fuel cell provided in the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 The process diagram of the heat preservation method of the vehicle fuel cell disclosed in the embodiment of the present disclosure is as follows Figure 1 ;

[0026] Figure 2 It is a schematic diagram of an application scenario of the heat preservation method for a vehicle fuel cell disclosed in an embodiment of the present disclosure;

[0027] Figure 3 The process diagram of the heat preservation method of the vehicle fuel cell disclosed in the embodiment of the present disclosure is as follows Figure 2 ;

[0028] Figure 4 The structure of the heat preservation device of the vehicle fuel cell disclosed in the embodiment of the present disclosure is schematically shown. Figure 1 ;

[0029] Figure 5 The structure of the heat preservation device of the vehicle fuel cell disclosed in the embodiment of the present disclosure is schematically shown. Figure 2 ;

[0030] Figure 6 It is a schematic diagram of the structure of an electronic device disclosed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0031] The following is a further detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0032] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0033] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0034] In addition, the words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0035] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0036] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.

[0037] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0038] At present, the cold start performance of fuel cells in low temperature environments is significantly reduced, and they cannot meet the actual power or voltage requirements of the vehicle in a timely manner, thereby reducing the overall performance of the vehicle.

[0039] Although the above problems can be solved by sending a pre-start signal to the vehicle, the actual sending of the signal and the actual start of the heating are difficult to control, and there is still the problem of inaccurate pre-heating of the fuel cell. If the heating is too early, more energy will be consumed and the fuel cell will overheat. If the heating is too late, the temperature of the fuel cell has not reached the appropriate temperature when the driver uses the vehicle, and the actual power or voltage requirements of the vehicle cannot be met in time.

[0040] In view of this, the embodiments of the present disclosure provide a method for heat preservation of a vehicle fuel cell, a heat preservation device for a vehicle fuel cell, an electronic device, and a computer-readable storage medium. By obtaining the scheduled travel information of the vehicle, the driver's next travel time is determined according to the scheduled travel information, so as to determine the time for preheating the fuel cell, and then when the time is reached, the fuel cell is started to be heated to a preset temperature. In this way, when the driver starts to use the vehicle, the fuel cell in the vehicle just reaches the preset temperature. The fuel cell at the preset temperature can achieve the best performance. While effectively controlling the heating energy consumption, it can also meet the various power or voltage requirements of the vehicle, thereby improving the overall performance of the vehicle.

[0041] First, the heat preservation method of a vehicle fuel cell provided by an embodiment of the present disclosure is described in detail.

[0042] The heat preservation method of the vehicle fuel cell is applied to the heat preservation device of the vehicle fuel cell. The heat preservation device of the vehicle fuel cell can be installed completely inside the vehicle, or partially outside the vehicle and partially inside the vehicle, and the specific needs are determined according to the actual situation of the vehicle and the actual requirements of heat preservation.

[0043] Figure 1 The process diagram of the heat preservation method of the vehicle fuel cell disclosed in the embodiment of the present disclosure is as follows Figure 1 , see Figure 1 As shown, the method may include:

[0044] S11: Obtaining the vehicle's scheduled trip information.

[0045] The vehicle here may refer to a vehicle that has a fuel cell installed inside and requires the power or voltage provided by the fuel cell to achieve vehicle starting, power supply for in-vehicle electrical appliances, etc.

[0046] The driver can directly input the scheduled trip information in the vehicle before leaving the vehicle after completing the last driving. Alternatively, the driver can send the scheduled trip information to the vehicle through a remote terminal connected to the vehicle after completing the last driving and leaving the vehicle.

[0047] The scheduled trip information is used to indicate that the vehicle will be used after a target duration, and the target duration is positively correlated with the temperature difference between the ambient temperature of the vehicle and a preset temperature at which the fuel cell of the vehicle can normally output.

[0048] In other words, the scheduled trip information entered by the driver is not accepted and processed unconditionally. After receiving the scheduled trip information entered by the driver, it is necessary to determine the departure time through the scheduled trip information, calculate the duration between the departure time and the current time, and determine whether the vehicle's fuel cell can be heated to the preset temperature within the duration, that is, determine whether the duration is less than the target duration. If so, obtain the scheduled trip information, and perform subsequent heating operations based on the scheduled trip information. If not, no subsequent heating operations are performed based on the scheduled trip information, because even if the heating operation is performed, the heating cannot be completed when the vehicle is used next time. At this time, a prompt message that normal heating cannot be completed can be output so that the driver can understand the actual situation and make corresponding processing, such as postponing the trip or not performing heating processing.

[0049] The determination of the target duration is dynamic and related to the vehicle's ambient temperature and the preset temperature at which the fuel cell can output normally. Because the lowest temperature at which the fuel cell can output normally is fixed, if the vehicle's ambient temperature is high, the temperature of the fuel cell is also high, and the temperature difference between the current temperature and the lowest temperature of the fuel cell is small, and the heating time is short, that is, the target duration is short. If the vehicle's ambient temperature is low, the temperature of the fuel cell is also low, and the temperature difference between the current temperature and the lowest temperature of the fuel cell is large, and the heating time is long, that is, the target duration is long. Therefore, after receiving the scheduled trip information entered by the driver, it is necessary to dynamically determine whether it can be obtained and used in combination with the ambient temperature.

[0050] In actual applications, the scheduled trip information may include departure information, destination information, departure time, arrival time, etc. The core of obtaining the scheduled trip information is to obtain the departure time. When the departure time is included in the scheduled trip information, it can be used directly later. When the departure time is not included in the scheduled trip information, the departure time can be calculated through other information. For example: when the scheduled trip information contains departure information and destination information, the departure time of the vehicle from the departure place to the destination is searched according to the historical trip records of the vehicle, and the searched departure time is used as the scheduled departure time. Another example: when the scheduled trip information contains departure information, destination information and arrival time, the arrival time is pushed forward according to the navigation time from the departure place to the destination to obtain the departure time.

[0051] S12: Based on the scheduled trip information, determine a start heating time for starting heating of the fuel cell in advance.

[0052] If the scheduled trip information contains time information, the time information can be directly extracted from the scheduled trip information. If the time information is the travel time, the start heating time can be directly determined based on the travel time. If the travel information is the arrival time, it is necessary to first calculate the travel time based on the arrival time and the time it takes to drive from the departure point to the destination, and then determine the start heating time based on the travel time.

[0053] In the process of determining the start heating time based on the travel time, the travel time can be moved forward by a period of time to obtain the start heating time. For example, if the travel time is 8:00 a.m., the start heating time can be moved forward by half an hour to obtain 7:30 a.m. The time moved forward can be half an hour, ten minutes, etc., which is determined based on the time taken by the fuel cell to heat to the preset temperature in history.

[0054] Of course, the current vehicle driver's historical scheduled trip information and its corresponding start-up heating time and the actual time for the fuel cell to heat to the preset temperature can also be substituted into the preset neural network model for training to obtain a target model. Then, the currently obtained scheduled trip information is substituted into the target model, and the output of the target model is the start-up heating time. The specific method for determining the start-up heating time from the scheduled trip information is not limited here.

[0055] S13: When the start heating time is reached, the fuel cell starts to be heated to a preset temperature so that when the vehicle starts traveling, the fuel cell can meet the power request or voltage request of the vehicle.

[0056] When the start heating time arrives, the fuel cell can be heated until the fuel cell reaches the preset temperature, and then the heating can be stopped. When the heating stops, the travel time in the scheduled trip information has arrived. At this time, the driver uses the vehicle, and the vehicle generates corresponding power or voltage requirements. The fuel cell is just within the appropriate preset temperature range and can provide the corresponding power or voltage.

[0057] To heat the fuel cell, a heater may be arranged around the fuel cell, and the fuel cell may be heated by an electric heating component or a self-heating component in the heater. The fuel cell may also be used to power an electrical appliance in the vehicle, and the fuel cell may be heated by the heat energy generated by the chemical reaction in the fuel cell when the fuel cell is powered. The specific method of heating the fuel cell is not limited here.

[0058] From the above content, it can be seen that the insulation method for a vehicle fuel cell provided in the embodiment of the present disclosure obtains the vehicle's scheduled trip information, and after determining through the scheduled trip information that the fuel cell can be heated to a preset temperature before the vehicle is used, the time when the driver uses the vehicle is accurately determined according to the scheduled trip information, and then the time for advance heating is accurately determined, thereby achieving accurate heating of the vehicle's fuel cell, so that the fuel cell is heated just when the driver is using the vehicle, which ensures that the fuel cell can output normally while also saving energy consumption for insulation of the fuel cell.

[0059] In some embodiments, as a Figure 1 As a refinement and extension of the method shown, the disclosed embodiment also provides a method for heat preservation of a vehicle fuel cell.

[0060] Figure 2 is a schematic diagram of an application scenario of the heat preservation method for a vehicle fuel cell disclosed in an embodiment of the present disclosure, see Figure 2 As shown, the heat preservation device of the vehicle fuel cell may include: a mobile terminal, a cloud platform, a controller and a heater. An application is installed in the mobile terminal. The controller may include: a vehicle terminal and a main controller of the fuel cell system.

[0061] Among them, the mobile terminal and cloud platform are located outside the vehicle, and the controller and heater are located inside the vehicle.

[0062] The mobile terminal can be a driver's mobile phone, tablet computer or other terminal. An application is installed on the mobile terminal. The driver can enter the reservation trip information in the application. The background of the application can send the reservation trip information to the cloud platform for processing.

[0063] The cloud platform, which can be a cloud processor developed by itself or provided by a third party, can obtain the start-up heating time based on the scheduled trip information. After the cloud platform obtains the start-up heating time, it can send the start-up heating time to the vehicle terminal in the controller, so that the vehicle terminal can monitor the time based on the start-up heating time.

[0064] The vehicle terminal, namely TBOX, is connected to the cloud platform and can receive various information sent by the cloud platform to the vehicle. It is also connected to the main controller of the fuel cell system, namely (Fuel Cell Control Unit, FCU), and can wake up the main controller of the fuel cell system to control the heating of the fuel cell.

[0065] The fuel cell system main controller, as the core of the fuel cell system, can provide the vehicle with corresponding power or voltage output based on the vehicle's request, and can also perform various other controls related to the fuel cell, such as controlling the operation of the heater.

[0066] When the heater is running, it will generate a certain amount of heat. Since the heater is generally set around the fuel cell, after the fuel cell absorbs the heat, its temperature will also rise, thus reaching the preset temperature, and then at the preset temperature, it can meet the power or voltage requirements of the vehicle.

[0067] Figure 3 The process diagram of the heat preservation method of the vehicle fuel cell disclosed in the embodiment of the present disclosure is as follows Figure 2 , see Figure 3 As shown, the method may include:

[0068] S31: The driver enters the reservation trip information in the target application on the mobile terminal.

[0069] In order to achieve advance heating of the fuel cell in his vehicle, the driver can install the target application on the mobile terminal he uses, and then enter the scheduled trip information in the target application before the next drive.

[0070] Alternatively, the driver may not directly input the scheduled trip information into the target application, but after installing the target application, grant the target application permission to automatically obtain the scheduled trip information, that is, allow the target application to obtain the scheduled trip information from the navigation application on the mobile terminal.

[0071] S32: The target application obtains the reservation travel information and sends the reservation travel information to the cloud platform.

[0072] When the target application directly inputs information such as travel time, departure place, destination, etc., the target application can directly extract the information such as travel time, departure place, destination, etc. from the input information, and use the obtained information as the reservation itinerary information.

[0073] When the target application is authorized to automatically obtain the scheduled trip information, the target application can obtain the search navigation information including the travel time, departure place and destination from the navigation application on the mobile terminal. Because the driver searches based on the travel time, departure place and destination in the navigation application, there is a high probability that he will need to travel according to this. Then, the target application outputs a reservation confirmation prompt to the driver based on the search navigation information, so as to confirm with the driver whether the travel time, departure place and destination in the search navigation information are the subsequent travel plan through the reservation confirmation prompt. After the driver sees the reservation confirmation prompt, if it is determined to be the subsequent travel plan, the driver confirms it, that is, feedbacks the reservation confirmation information to the target application. After receiving the reservation confirmation information, the target application can determine the search navigation information as the scheduled trip information. If the driver believes that the search navigation information is not the subsequent travel plan, a denial information is fed back to the target application. After receiving the denial information, the target application no longer uses the search navigation information obtained at this time as the scheduled trip information, but continues to monitor the input content of the navigation application so as to finally obtain the scheduled trip information of the driver's actual trip.

[0074] After the target application obtains the reservation itinerary information, it can send the reservation itinerary information to the cloud platform. After the cloud platform receives the reservation itinerary information, it can process the reservation itinerary information.

[0075] S33: The cloud platform determines the scheduled travel time of the vehicle based on the scheduled travel information, and sends a fuel cell temperature acquisition instruction to the controller.

[0076] The reservation itinerary information generally includes information such as the departure place, the destination, and the travel time. The time-related information can be extracted from the reservation itinerary information, and the extracted information is the reservation travel time.

[0077] While determining the scheduled travel time, the cloud platform also needs to send a fuel cell temperature acquisition instruction to the vehicle terminal in the controller to obtain the current temperature of the fuel cell through the vehicle terminal, and then determine whether the fuel cell needs to be heated later based on the current temperature.

[0078] The timing of sending the fuel cell temperature acquisition instruction to the vehicle terminal can be immediately after the scheduled travel time is determined, or it can be sent at a certain time point before the scheduled travel time. For example, if the scheduled travel time is 8 a.m., the cloud platform will send the fuel cell temperature acquisition instruction to the vehicle terminal at 7 a.m. The time interval between the issuance time point and the scheduled travel time can be half an hour, 1 hour, 2 hours, etc., which can be determined according to the historical heating time and the time redundancy setting, etc., and is not specifically limited here.

[0079] The fuel cell temperature acquisition indication may be an instruction including a temperature acquisition request, a cloud platform identifier, and a fuel cell identifier, or it may only include symbols pre-agreed upon between the cloud platform and the vehicle terminal, so as to prevent a third party from maliciously modifying the indication after obtaining it and then sending it to the vehicle terminal, thereby improving the safety of the entire vehicle.

[0080] S34: The vehicle-mounted terminal obtains the current temperature of the fuel cell in response to the fuel cell temperature acquisition instruction.

[0081] After receiving the fuel cell temperature acquisition instruction, the vehicle terminal in the controller can directly obtain the temperature from the temperature measuring component of the fuel cell. If the fuel cell itself does not have a temperature measuring component, a temperature sensor can also be configured for the fuel cell to obtain the temperature measured by the temperature sensor. The temperature can also be obtained from the temperature sensors of other components in the vehicle. Finally, the obtained temperature is used as the current temperature of the fuel cell.

[0082] S35: The vehicle terminal determines whether the current temperature is lower than the preset temperature, and determines whether the vehicle's external charging gun is normally connected.

[0083] The temperature of the fuel cell is lower than the preset temperature, and the fuel cell cannot meet the power request or voltage request of the vehicle. In practical applications, the preset temperature may be 5°C, etc., which needs to be determined according to the specific performance of the fuel cell and is not limited here.

[0084] To determine whether the current temperature is lower than the preset temperature, the current temperature is compared with the preset temperature.

[0085] The purpose of judging whether the vehicle's external charging gun is connected is to be able to provide electrical energy for heating the fuel cell through an external charging power supply when it is determined that the fuel cell needs to be heated, thereby reducing the energy consumption of the vehicle itself.

[0086] In the specific judgment, the vehicle's charging indicator light can be used. When the charging indicator light is on, it means that the vehicle is currently charging, and then determine whether the vehicle's external charging gun is connected normally. When the charging indicator light is not on, it means that the vehicle is not currently charging, or the indicator light is damaged. At this time, it is determined that the vehicle's external charging gun is not connected normally. It can also be through the monitoring of the vehicle parking place and the vehicle's own driving recorder. The on-board terminal can send a vehicle video acquisition request to the monitoring. If the monitoring party allows, the monitoring will send the vehicle video to the on-board terminal based on the request. The on-board terminal identifies whether the vehicle's charging gun is connected to an external power supply based on the received vehicle video and the content of the vehicle video in the trip recorder, thereby determining whether the vehicle's external charging gun is connected normally. Of course, the charging indicator light can also be combined with the vehicle video for judgment, or when a certain factor is not available, one or more factors can be selected for judgment.

[0087] If all are yes, execute S36; if at least one is no, execute S37.

[0088] S36: Determine the current temperature as the current battery temperature, and send the current battery temperature to the cloud platform.

[0089] If the current temperature of the fuel cell is lower than the preset temperature and the vehicle's charging gun is connected normally, it means that the vehicle, that is, the fuel cell, is currently in a cold environment (season, parking lot indoor environment) and the fuel cell needs to be heated before use. The vehicle is charging and can be heated using the electric energy provided by an external charging power source. At this time, the vehicle terminal sends the current battery temperature to the cloud platform so that the cloud platform can prepare for preheating of the fuel cell.

[0090] S37: Feedback to the cloud platform a prompt message that the fuel cell does not need to be heated in advance or a prompt message that the fuel cell is self-heated in advance through a target electrical appliance in the vehicle.

[0091] If the current temperature of the fuel cell is greater than or equal to the preset temperature, regardless of whether the charging gun is normally connected to the vehicle and the external power supply, the temperature of the fuel cell's current environment is suitable, and the fuel cell does not need to be preheated before the vehicle is used. At this time, the vehicle terminal sends a prompt message to the cloud platform to prompt the cloud platform that there is no need to continue preheating preparations for this scheduled trip information.

[0092] If the current temperature of the fuel cell is lower than the preset temperature, and the vehicle's charging gun is not properly connected to an external power source, in this case, the temperature of the fuel cell's current environment is low and needs to be heated in advance, but there is no external power source to provide electrical energy for heating. At this time, the fuel cell's own electrical energy can be used to power some electrical appliances in the vehicle, and the fuel cell can be heated by the heat generated by the fuel cell itself, that is, the heat generated by the slow chemical reaction. That is, the on-board terminal sends a prompt message to the cloud platform to prompt the cloud platform to heat the fuel cell in advance and use the fuel cell to power the target electrical appliances in the vehicle.

[0093] The prompt information of the fuel cell self-heating in advance through the target electrical appliance in the vehicle may include the target electrical appliance identification and the current temperature of the battery. In this way, after seeing the prompt information, the cloud platform can determine the start heating time according to the current temperature of the battery, and control which one or more electrical appliances in the vehicle the fuel cell powers.

[0094] By supplying power to the target appliance to heat the fuel cell, since the vehicle has not been used by the driver at this time, even if the power or voltage provided by the fuel cell is not enough to support the target appliance, the target appliance can still operate barely, but the operating performance cannot reach the optimal level, which will not affect the driving experience. It can also turn on the relevant appliances in the vehicle for the driver in advance to further enhance the driving experience. For example: the target appliance is a car air conditioner. In summer, turn on the car air conditioner in advance. Although the car air conditioner cannot achieve rapid cooling due to low power or low voltage, the driver is not in the car at this time. Slow cooling can also make the driver feel cool after entering the vehicle, improving the car experience. The target appliance can also be a driving recorder, a car navigation system, etc.

[0095] Of course, the vehicle terminal can also directly send the current temperature of the battery to the cloud platform, so that the cloud platform can determine whether the fuel cell needs to be heated in advance based on the current temperature of the battery.

[0096] S38: The cloud platform determines the start heating time according to the current battery temperature and the scheduled travel time.

[0097] It takes a certain amount of time for a fuel cell to heat from the current temperature to the preset temperature. This duration can be found in the data table. In the data table, the heating time required for heating different temperatures to the preset temperature is stored. These heating times can be calculated in advance based on the current temperature, preset temperature and heating rate, or obtained through historical heating time. In the data table, it can even include different temperatures corresponding to various fuel cells, and the heating time required to heat to the preset temperature in different seasons or ambient temperatures, so as to achieve accurate search of the duration, so that the advance heating of the fuel cell can be carried out accurately.

[0098] If the heating time is found from the data table based on the current battery temperature and season, the heating time is relatively accurate and can be used directly.

[0099] If the heating time is found from the data table based only on the current temperature of the battery, the heating time needs to be optimized because the heating of the fuel cell is also affected by the ambient temperature, etc.

[0100] During specific optimization, it can be determined whether the heating time exceeds the preset time. If it exceeds the preset time, it means that the heating time is long, which means that the temperature of the fuel cell is low, which means that the ambient temperature of the fuel cell is low, and it is slower to heat the fuel cell to the preset temperature. Therefore, it is necessary to multiply the heating time by the preset coefficient to obtain the actual heating time, where the preset coefficient is a value greater than 1. If it does not exceed the preset time, it means that the heating time is short, which means that the temperature of the fuel cell is not very low, which means that the ambient temperature of the fuel cell is not very low, and heating the fuel cell to the preset temperature can be carried out normally, so the heating time can be determined as the actual heating time.

[0101] Then, move the scheduled travel time forward by the actual heating time to get the heating start time.

[0102] S39: The cloud platform sends the start heating time to the controller.

[0103] After receiving the start-up heating time, the vehicle terminal in the controller uses the timer configured therein to subtract the current time from the start-up heating time to obtain the target time period, and then starts timing from the target time period. When the timing ends, the vehicle terminal controls the main controller of the fuel cell system to start heating the fuel cell.

[0104] Since the current battery temperature obtained previously is the instantaneous temperature of the fuel cell, the temperature of the fuel cell may also change with the environment during the timing of the vehicle terminal. For example, in summer, when the current battery temperature is obtained, the air conditioner is not turned on in the parking lot, the current battery temperature obtained is higher, and the start-up heating time is obtained later. After that, the air conditioner is turned on in the parking lot, and the current temperature of the fuel cell becomes lower, and the actual heating start time needs to be advanced. For this, after the controller obtains the start-up heating time and during the countdown, it needs to continue to monitor the temperature changes of the fuel cell to adjust the countdown.

[0105] Specifically, the vehicle terminal obtains multiple temperature values ​​of the fuel cell within a preset time period. The preset time period here can be any time period from when the vehicle terminal obtains the start heating time to when the start heating time is reached (it is necessary to leave free time for adjustment before the start heating time). Within the preset time period, the temperature of the fuel cell can be collected at preset time intervals to obtain multiple temperature values. The temperature change trend of the fuel cell is generated based on multiple temperature values ​​to determine whether the temperature change trend indicates stability. The temperature situation in a slightly longer time can be estimated through the temperature change trend in a short period of time. When the temperature change trend is stable, it means that the current temperature of the battery obtained previously is not much different from the temperature of the fuel cell before the actual heating, and the vehicle terminal can control the heating of the fuel cell at the start heating time. When the temperature change trend is not stable, it means that the current temperature of the battery obtained previously is different from the temperature of the fuel cell before the actual heating. Then, when the temperature change trend indicates an increase, the start heating time is delayed, that is, the countdown is increased, or the countdown is slowed down. When the temperature change trend indicates a decrease, the heating time is started in advance, that is, the countdown is reduced, or the countdown is accelerated.

[0106] S310: When the start-up heating time arrives, the vehicle terminal wakes up the main controller of the fuel cell system.

[0107] S311: The main controller of the fuel cell system controls the external power supply to provide electrical energy to the heater of the fuel cell.

[0108] The vehicle terminal can actively turn on the main controller of the fuel cell system. After the main controller of the fuel cell system is turned on, it can start to control the external power supply to provide power to the heater of the fuel cell through pre-configuration. The heater starts to work and heats the fuel cell.

[0109] The vehicle terminal can also send a preset signal to the fuel cell system main controller after turning on the fuel cell system main controller. The fuel cell system main controller can start controlling the external power supply to provide power to the fuel cell heater according to the preset signal. The heater starts working to heat the fuel cell.

[0110] As the heater heats the fuel cell, the temperature of the fuel cell can gradually rise from a low temperature to a preset temperature. During the heating process of the fuel cell, the temperature of the fuel cell still needs to be monitored in real time to avoid overheating and damage to the fuel cell, or insufficient heating and failure to meet the vehicle's power request or voltage request when the vehicle is in use.

[0111] S312: The fuel cell system main controller monitors the real-time temperature of the fuel cell.

[0112] The closer the real-time temperature is to the preset temperature, the higher the monitoring frequency. That is, as the heating continues, the more frequent the monitoring. In this way, heating can be stopped immediately after the fuel cell reaches the preset temperature, effectively avoiding overheating of the fuel cell without wasting too many monitoring resources.

[0113] S313: Determine whether the real-time temperature reaches the preset temperature. If yes, execute S314; if no, execute S312.

[0114] S314: Stop heating the fuel cell and continue to monitor the real-time temperature of the fuel cell. When the real-time temperature is lower than the cut-off temperature, heat the fuel cell again until the vehicle starts.

[0115] When the real-time temperature reaches the preset temperature, it means that the fuel cell has been heated to the preset temperature. At this time, the fuel cell heating stops. It happens to be the time when the driver plans to start using the vehicle. When the driver uses the vehicle, the power request or voltage request generated by the vehicle can be immediately met by the fuel cell at the preset temperature.

[0116] In actual situations, the driver may not arrive at the vehicle strictly according to the scheduled travel time, and may arrive earlier or later. If the driver arrives at the vehicle ahead of time, he needs to wait for a while until the fuel cell is heated to the preset temperature, or start the vehicle and accelerate the heating of the fuel cell through the heat emitted by the vehicle startup. If the driver delays arriving at the vehicle and stops heating the fuel cell, the temperature of the fuel cell will gradually decrease from the preset temperature. The temperature from the preset temperature to the cut-off temperature will not affect the normal output power or voltage of the fuel cell. As long as the driver uses the vehicle during this temperature period, the fuel cell can still output power or voltage normally. If the driver still does not arrive at the vehicle during this temperature period, the main controller of the fuel cell system detects that the temperature of the fuel cell is lower than the cut-off temperature, and continues to control the heating of the fuel cell to the preset temperature. This process repeats until the vehicle is started, and the heating and insulation of the fuel cell is finished.

[0117] At this point, the insulation method for a fuel cell for a vehicle provided by the embodiments of the present disclosure has been fully described.

[0118] Based on the same inventive concept, as an implementation of the above method, the embodiment of the present disclosure also provides a heat preservation device for a vehicle fuel cell.

[0119] Figure 4 The structure of the heat preservation device of the vehicle fuel cell disclosed in the embodiment of the present disclosure is schematically shown. Figure 1 , see Figure 4 As shown, the device may include: an acquisition module 41, a determination module 42 and a heating module 43. The acquisition module 41, the determination module 42 and the heating module 43 are connected in sequence.

[0120] The acquisition module 41 is used to obtain the scheduled travel information of the vehicle, which is used to indicate that the vehicle will be used after a target time. The target time is positively correlated with the temperature difference between the ambient temperature of the vehicle and the preset temperature at which the fuel cell of the vehicle can normally output.

[0121] The determination module 42 is used to determine a start heating time for starting heating of the fuel cell in advance based on the scheduled trip information.

[0122] The heating module 43 is used to start heating the fuel cell to a preset temperature when the start heating time is reached, so that the fuel cell can meet the power request or voltage request of the vehicle when the vehicle starts traveling.

[0123] In some embodiments, as a Figure 4 As a refinement and expansion of the device shown, the disclosed embodiment also provides a thermal insulation device for a vehicle fuel cell.

[0124] Figure 5 The structure of the heat preservation device of the vehicle fuel cell disclosed in the embodiment of the present disclosure is schematically shown. Figure 2 , see Figure 5 As shown, the device may include: a mobile terminal 51, a cloud platform 52 and a controller. The mobile terminal 51 is installed with a target application. The mobile terminal 51 and the cloud platform 52 are located outside the vehicle, and the controller is located inside the vehicle. The controller includes a vehicle terminal 53 and a fuel cell system main controller 54. The mobile terminal 51, the cloud platform 52, the vehicle terminal 53 and the fuel cell system main controller 54 are connected in sequence.

[0125] The acquisition module 41 mentioned above may be a mobile terminal 51. The determination module 42 mentioned above may be a cloud platform 52. The heating module 43 mentioned above may be a vehicle terminal 53 and a fuel cell system main controller 54.

[0126] The cloud platform 52 is used to obtain the reservation itinerary information sent by the application in the mobile terminal 51.

[0127] The cloud platform 52 is also used to determine the scheduled travel time of the vehicle based on the scheduled trip information, and send a fuel cell temperature acquisition indication to the controller; receive the current battery temperature fed back by the controller based on the fuel cell temperature acquisition indication; determine the start heating time based on the current battery temperature and the scheduled travel time, and send the start heating time to the controller, so that the controller controls the heating of the fuel cell at the start heating time.

[0128] Before the cloud platform 52 obtains the reservation itinerary information sent by the application in the mobile terminal 51, the target application in the mobile terminal 51 is used to obtain search navigation information from the navigation application in the mobile terminal 51, and the search navigation information includes travel time, departure place and destination; output a reservation confirmation prompt based on the search navigation information; in response to the reservation confirmation information based on the reservation confirmation prompt, determine the search navigation information as reservation itinerary information, and send the reservation itinerary information to the cloud platform 52.

[0129] After sending the fuel cell temperature acquisition indication to the controller, the vehicle-mounted terminal 53 is used to respond to the fuel cell temperature acquisition indication to obtain the current temperature of the fuel cell; determine whether the current temperature is less than the preset temperature, and determine whether the vehicle's external charging gun is normally connected, wherein the temperature of the fuel cell is less than the preset temperature and the fuel cell cannot meet the vehicle's power request or voltage request; if both are yes, the current temperature is determined as the current temperature of the battery, and the current temperature of the battery is sent to the cloud platform 52 to wake up the fuel cell system main controller 54 according to the start heating time fed back by the cloud platform 52, so that the fuel cell system main controller 54 controls the external power supply to provide electrical energy to the fuel cell heater; if at least one item is no, feedback is given to the cloud platform 52 to indicate that there is no need to heat the fuel cell in advance or to indicate that the fuel cell is self-heated in advance through the target electrical appliance in the vehicle.

[0130] In determining the start heating time according to the current battery temperature and the scheduled travel time, the cloud platform 52 is used to determine the heating time corresponding to the current battery temperature from a data table, wherein the data table stores the heating time corresponding to different current temperatures, and the heating time is calculated in advance based on the current temperature, the preset temperature and the heating rate; determine whether the heating time exceeds the preset time; if so, multiply the heating time by the preset coefficient to obtain the actual heating time, wherein the preset coefficient is a value greater than 1; if not, determine the heating time as the actual heating time; and determine the start heating time based on the actual heating time and the scheduled travel time.

[0131] After sending the start heating time to the controller, the vehicle-mounted terminal 53 in the controller is used to obtain multiple temperature values ​​of the fuel cell within a preset time period; generate a temperature change trend of the fuel cell based on the multiple temperature values; determine whether the temperature change trend indicates stability; if so, control the fuel cell system main controller 54 to control the heating of the fuel cell at the start heating time; if not, delay the start heating time when the temperature change trend indicates an increase, and start the heating time in advance when the temperature change trend indicates a decrease.

[0132] The fuel cell system main controller 54 in the controller is used to monitor the real-time temperature of the fuel cell, wherein the closer the real-time temperature is to the preset temperature, the higher the monitoring frequency is; it is judged whether the real-time temperature reaches the preset temperature; if so, the heating of the fuel cell is stopped, and the real-time temperature of the fuel cell is continued to be monitored. When the real-time temperature is lower than the cut-off temperature, the fuel cell is heated again until the vehicle is started; if not, the real-time temperature of the fuel cell is continued to be monitored.

[0133] It should be noted here that the description of the above device embodiment is similar to the description of the above method embodiment, and has similar beneficial effects as the method embodiment. For technical details not disclosed in the device embodiment of the present disclosure, please refer to the description of the method embodiment of the present disclosure for understanding.

[0134] Based on the same inventive concept, an embodiment of the present disclosure also provides an electronic device.

[0135] Figure 6 is a schematic diagram of the structure of the electronic device disclosed in the embodiment of the present disclosure, see Figure 6 As shown, the electronic device may include: a processor 61, a memory 62, and a bus 63; wherein the processor 61 and the memory 62 communicate with each other via the bus 63; the processor 61 is used to call program instructions in the memory 62 to execute the methods in one or more of the above embodiments.

[0136] It should be noted that the description of the above electronic device embodiment is similar to the description of the above method embodiment, and has similar beneficial effects as the method embodiment. For technical details not disclosed in the electronic device embodiment of the present disclosure, please refer to the description of the method embodiment of the present disclosure for understanding.

[0137] Based on the same inventive concept, an embodiment of the present disclosure further provides a computer-readable storage medium, which may include: a stored program; wherein, when the program is running, the device where the storage medium is located is controlled to execute the method in one or more of the above embodiments.

[0138] It should be noted that the description of the above storage medium embodiment is similar to the description of the above method embodiment, and has similar beneficial effects as the method embodiment. For technical details not disclosed in the storage medium embodiment of the present disclosure, please refer to the description of the method embodiment of the present disclosure for understanding.

[0139] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0140] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A method for heat preservation of a fuel cell for a vehicle, characterized in that: The method is applied to a heat preservation device for a vehicle fuel cell, and the method comprises: Acquiring scheduled trip information of a vehicle, the scheduled trip information being used to indicate that the vehicle will be used after a target duration, the target duration being positively correlated with a temperature difference between an ambient temperature of the vehicle and a preset temperature at which a fuel cell of the vehicle can normally output; Based on the scheduled trip information, determining a start heating time for starting heating of the fuel cell in advance; When the start-up heating time is reached, the fuel cell starts to be heated to the preset temperature, so that when the vehicle starts traveling, the fuel cell can meet the power request or voltage request of the vehicle.

2. The method according to claim 1, characterized in that The device includes a mobile terminal, a cloud platform and a controller, wherein the mobile terminal and the cloud platform are located outside the vehicle, and the controller is located inside the vehicle; the step of obtaining the scheduled itinerary information of the vehicle includes: The cloud platform obtains the reservation itinerary information sent by the application in the mobile terminal; The step of determining, based on the scheduled trip information, a start-up heating time for starting heating of the fuel cell in advance includes: The cloud platform determines the scheduled travel time of the vehicle according to the scheduled travel information, and sends a fuel cell temperature acquisition instruction to the controller; receiving a current temperature of the battery from the controller based on the fuel cell temperature acquisition indication feedback; The start-up heating time is determined according to the current temperature of the battery and the scheduled travel time, and the start-up heating time is sent to the controller, so that the controller controls the heating of the fuel cell at the start-up heating time.

3. The method according to claim 2, characterized in that Before the cloud platform obtains the scheduled travel information sent by the application in the mobile terminal, the method further includes: The target application in the mobile terminal obtains search navigation information from the navigation application in the mobile terminal, and the search navigation information includes travel time, departure place and destination; outputting a reservation confirmation prompt based on the search navigation information; In response to the reservation confirmation information based on the reservation confirmation prompt, the search navigation information is determined as the reservation itinerary information, and the reservation itinerary information is sent to the cloud platform.

4. The method according to claim 2, characterized in that: The controller includes a vehicle-mounted terminal and a fuel cell system main controller; after sending a fuel cell temperature acquisition instruction to the controller, the method further includes: The vehicle-mounted terminal acquires the current temperature of the fuel cell in response to the fuel cell temperature acquisition instruction; Determining whether the current temperature is lower than a preset temperature, and determining whether the external charging gun of the vehicle is normally connected, wherein the temperature of the fuel cell is lower than the preset temperature, and the fuel cell cannot meet the power request or voltage request of the vehicle; If both are yes, the current temperature is determined as the current temperature of the battery, and the current temperature of the battery is sent to the cloud platform, so as to wake up the fuel cell system main controller according to the start heating time fed back by the cloud platform, so that the fuel cell system main controller controls the external power supply to provide power to the heater of the fuel cell; If at least one of the items is negative, a prompt message indicating that the fuel cell does not need to be heated in advance or a prompt message indicating that the fuel cell is self-heated in advance through a target electrical appliance in the vehicle is fed back to the cloud platform.

5. The method according to claim 2, characterized in that: The step of determining the start heating time according to the current battery temperature and the scheduled travel time includes: Determine the heating time corresponding to the current temperature of the battery from a data table, wherein the data table stores heating times corresponding to different current temperatures, and the heating time is calculated in advance based on the current temperature, the preset temperature and the heating rate; Determining whether the heating time exceeds a preset time; If yes, the actual heating time is obtained by multiplying the heating time by a preset coefficient, wherein the preset coefficient is a value greater than 1; If not, the heating time is determined as the actual heating time; The heating start time is determined based on the actual heating time and the scheduled travel time.

6. The method according to claim 2, characterized in that After sending the start heating time to the controller, the method further includes: The controller acquires a plurality of temperature values ​​of the fuel cell within a preset time period; generating a temperature variation trend of the fuel cell based on the plurality of temperature values; Determining whether the temperature change trend indicates stability; If yes, executing the step of controlling the controller to heat the fuel cell during the start-up heating time; If not, then when the temperature change trend indicates an increase, the start heating time is delayed, and when the temperature change trend indicates a decrease, the start heating time is advanced.

7. The method according to any one of claims 1 to 6, characterized in that The step of starting to heat the fuel cell to a preset temperature comprises: Monitoring the real-time temperature of the fuel cell, wherein the closer the real-time temperature is to the preset temperature, the higher the monitoring frequency; Determining whether the real-time temperature reaches the preset temperature; If yes, stop heating the fuel cell and continue to monitor the real-time temperature of the fuel cell. When the real-time temperature is lower than the cut-off temperature, heat the fuel cell again until the vehicle starts. If not, continue to monitor the real-time temperature of the fuel cell.

8. A thermal insulation device for a fuel cell for a vehicle, characterized in that: The device comprises: An acquisition module, used for acquiring scheduled trip information of a vehicle, wherein the scheduled trip information is used for indicating that the vehicle will be used after a target duration, and the target duration is positively correlated with the temperature difference between the ambient temperature of the vehicle and a preset temperature at which a fuel cell of the vehicle can normally output; A determination module, configured to determine a start-up heating time for starting heating of the fuel cell in advance based on the scheduled trip information; The heating module is used to start heating the fuel cell to the preset temperature when the start heating time is reached, so that when the vehicle starts traveling, the fuel cell can meet the power request or voltage request of the vehicle.

9. An electronic device, characterized in that: The electronic device comprises: a processor, a memory, and a bus; wherein the processor and the memory communicate with each other via the bus; and the processor is used to call program instructions in the memory to execute the method as claimed in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The storage medium comprises: a stored program; wherein, when the program is running, the device where the storage medium is located is controlled to execute the method as claimed in any one of claims 1 to 7.

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