Dry burning fault detection method and device of heater, vehicle, equipment and medium

Abstract

The invention provides a dry burning fault detection method and device of a heater, a vehicle, equipment and a medium. The dry burning fault detection method comprises the steps that the instantaneous temperature value, collected by a temperature sensor arranged on the heater in the vehicle, of the heater is obtained in real time; whenever it is detected that the duration of the instantaneous temperature value larger than or equal to a first preset temperature value exceeds a first preset time threshold value, a dry burning early warning signal of the heater is generated; and when it is detected that the number of the dry burning early warning signals within a second preset time threshold value is larger than a preset number threshold value, it is considered that the heater has a dry burning fault, and a dry burning fault signal of the heater is generated. By means of the dry burning fault detection method and the dry burning fault detection device, the situation of fault false alarm is avoided, when the heater really has the dry burning fault, detection can be conducted in time, the accuracy of heater dry burning fault detection is improved, and the safety of a vehicle is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a method, device, vehicle, equipment and medium for detecting a dry-burn fault of a heater. Background Art

[0002] As a heating component in a vehicle, the application scope of heaters has gradually expanded from pure electric vehicles to extended-range vehicles and hybrid vehicles. In extended-range vehicles and hybrid vehicles, the heater is usually arranged in series with the engine.

[0003] When high-temperature coolant flows into the system, engine coolant carrying more gas will enter the heater in large quantities. These gases may randomly gather in a short period of time, and the specific heat capacity of air is low, so the temperature of the gathering part is relatively high. Since the location of gas gathering is uncertain, when the temperature of the gas gathering location is higher than the temperature threshold, there is a high probability of triggering a dry burning fault. At this time, the heater will stop working and send a dry burning fault signal. Given the large flow rate of engine coolant, the bubbles will be dispersed and taken away by the subsequent coolant in a very short time, and the temperature of the heater will return to normal, and the dry burning fault will be resolved. Due to the frequent occurrence of dry burning faults and recovery, under the premise that the heater can work normally, the instrument panel will continue to report related faults, and the fault indicator light will also flash at a high frequency, thereby interfering with the driver's normal operation. If the dry burning fault signal is misreported or ignored, when the actual dry burning fault actually occurs, it may not be discovered in time and measures may not be taken to shut down the heater heating, resulting in damage to the heater. Summary of the invention

[0004] In view of this, the purpose of this application is to provide a method, device, vehicle, equipment and medium for detecting a dry-burn fault of a heater, which adds a determination condition for the number of dry-burn warning signals, and determines the number of dry-burn warning signals generated within a second preset time threshold. When the number of dry-burn warning signals is greater than the number threshold, it is considered that a dry-burn fault exists. This not only avoids false fault alarms, but also enables timely detection when a dry-burn fault actually occurs in the heater, thereby improving the accuracy of dry-burn fault detection for the heater and ensuring the safety of the vehicle.

[0005] In a first aspect, an embodiment of the present application provides a method for detecting a dry-burn fault of a heater, the method comprising:

[0006] Real-time acquisition of the instantaneous temperature value of the heater collected by a temperature sensor arranged on the heater in the vehicle;

[0007] Whenever it is detected that the instantaneous temperature value is greater than or equal to the first preset temperature value and the duration exceeds a first preset time threshold, a dry-burning warning signal of the heater is generated;

[0008] When it is detected that the number of the dry-burning warning signals within the second preset time threshold is greater than the preset number threshold, it is considered that the heater has a dry-burning fault, and a dry-burning fault signal of the heater is generated.

[0009] Further, after generating the dry-burn fault signal of the heater, the dry-burn fault detection method includes:

[0010] When it is detected that the duration of the instantaneous temperature value being less than the second preset temperature value exceeds a third preset time threshold, a working instruction is sent to the heater to restore the working state of the heater.

[0011] Furthermore, the second preset time threshold is calculated by the following steps:

[0012] The first preset time threshold is added to the third preset time threshold, and the added value is multiplied by the safety factor to obtain the second preset time threshold.

[0013] Furthermore, the dry burning fault detection method further includes:

[0014] When it is detected that the number of the dry-boiling warning signals within the second preset time threshold is less than or equal to the preset number threshold, the plurality of dry-boiling warning signals are regarded as interference signals.

[0015] Further, after generating the dry-burn fault signal of the heater, the dry-burn fault detection method includes:

[0016] A fault light on a dashboard of the vehicle is controlled to light up based on the dry-burn fault signal.

[0017] In a second aspect, an embodiment of the present application further provides a dry-burning fault detection device for a heater, the dry-burning fault detection device comprising:

[0018] A temperature value acquisition module, used to acquire in real time the instantaneous temperature value of the heater collected by a temperature sensor arranged on the heater in the vehicle;

[0019] a dry-burn warning signal generating module, configured to generate a dry-burn warning signal of the heater whenever it is detected that the instantaneous temperature value is greater than or equal to the first preset temperature value and the duration exceeds a first preset time threshold;

[0020] The dry-burn fault signal generating module is used to determine that the heater has a dry-burn fault and generate a dry-burn fault signal of the heater when the number of the dry-burn warning signals detected within a second preset time threshold is greater than a preset number threshold.

[0021] Furthermore, the dry-burning fault detection device further includes an instruction sending module. After the dry-burning fault signal of the heater is generated, the instruction sending module is used to:

[0022] When it is detected that the duration of the instantaneous temperature value being less than the second preset temperature value exceeds a third preset time threshold, a working instruction is sent to the heater to restore the working state of the heater.

[0023] In a third aspect, an embodiment of the present application further provides a vehicle, the vehicle comprising a dry-burn fault detection device for a heater, the dry-burn fault detection device being used to implement a dry-burn fault detection method for a heater.

[0024] In a fourth aspect, an embodiment of the present application further provides an electronic device, comprising: a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate through the bus, and when the machine-readable instructions are executed by the processor, the steps of the dry-burning fault detection method of the heater as described above are performed.

[0025] In a fifth aspect, an embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the above-mentioned method for detecting dry-burning faults of a heater are executed.

[0026] The embodiments of the present application provide a method, device, equipment and medium for detecting a dry-burn fault of a heater. First, the instantaneous temperature value of the heater collected by a temperature sensor arranged on the heater in a vehicle is acquired in real time; then, whenever it is detected that the instantaneous temperature value is greater than or equal to a first preset temperature value and the duration exceeds a first preset time threshold, a dry-burn warning signal of the heater is generated; finally, when it is detected that the number of dry-burn warning signals within a second preset time threshold is greater than a preset number threshold, it is considered that the heater has a dry-burn fault, and a dry-burn fault signal of the heater is generated.

[0027] The present application compares the instantaneous temperature value of the heater collected in real time with the first preset temperature value, and generates a dry-burn warning signal when the time when the instantaneous temperature value is greater than or equal to the first preset temperature value exceeds the first preset time threshold, and then judges the number of dry-burn warning signals generated within the second preset time threshold, and considers that a dry-burn fault exists when the number of dry-burn warning signals exceeds the preset number threshold. In this way, compared with the heater dry-burn fault detection method in the prior art, the present application adds a determination condition for the number of dry-burn warning signals, and judges the number of dry-burn warning signals generated within the second preset time threshold, and considers that a dry-burn fault exists when the number of dry-burn warning signals is greater than the number threshold. This not only avoids the situation of false fault alarms, but also can detect in time when the heater actually has a dry-burn fault, thereby improving the accuracy of heater dry-burn fault detection and ensuring the safety of the vehicle.

[0028] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A flowchart of a method for detecting a dry-burning fault of a heater provided in an embodiment of the present application;

[0031] Figure 2 This is one of the structural schematic diagrams of a dry-burning fault detection device for a heater provided in an embodiment of the present application;

[0032] Figure 3 A second structural schematic diagram of a dry-burning fault detection device for a heater provided in an embodiment of the present application;

[0033] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, each other embodiment obtained by those skilled in the art without making creative work belongs to the scope of protection of the present application.

[0035] First, the application scenarios to which the present application is applicable are introduced. The present application can be applied in the field of automotive technology.

[0036] As a heating component in a vehicle, the application scope of heaters has gradually expanded from pure electric vehicles to extended-range vehicles and hybrid vehicles. In extended-range vehicles and hybrid vehicles, the heater is usually arranged in series with the engine.

[0037] It has been found that when high-temperature coolant flows into the system, engine coolant carrying more gas will enter the heater in large quantities. These gases may randomly gather in a short period of time, and the specific heat capacity of air is low, so the temperature of the gathering part is relatively high. Due to the uncertainty of the location of gas gathering, when the temperature of the gas gathering location is higher than the temperature threshold, there is a high probability of triggering a dry burning fault. At this time, the heater will stop working and send a dry burning fault signal. Given the large flow rate of the engine coolant, the bubbles will be dispersed and taken away by the subsequent coolant in a very short time, and the temperature of the heater will return to normal, and the dry burning fault will be resolved. Due to the frequent occurrence of dry burning faults and recovery, under the premise that the heater can work normally, the instrument panel will continue to report related faults, and the fault indicator light will also flash at a high frequency, thereby interfering with the driver's normal operation. If the dry burning fault signal is misreported or ignored, when the actual dry burning fault actually occurs, it may not be discovered in time and measures may not be taken to shut down the heater heating, resulting in damage to the heater.

[0038] Based on this, the embodiment of the present application provides a method for detecting a dry-burning fault of a heater, which avoids false fault alarms and can detect it in time when a dry-burning fault actually occurs in the heater, thereby improving the accuracy of detecting a dry-burning fault of the heater and ensuring the safety of the vehicle.

[0039] See also Figure 1 , Figure 1 This is a flow chart of a method for detecting a dry-burning fault of a heater provided in an embodiment of the present application. Figure 1As shown in , the dry burning fault detection method provided by the embodiment of the present application includes:

[0040] S101, acquiring in real time an instantaneous temperature value of a heater collected by a temperature sensor arranged on the heater in a vehicle.

[0041] Here, a temperature sensor for monitoring the instantaneous temperature of the heater is provided on the heater of the vehicle. In this embodiment, the heater is a WPTC (high pressure water heater) in the vehicle, and as an example, it can be a film heater, which is not specifically limited in this application.

[0042] Regarding the above step S101, during specific implementation, the instantaneous temperature value of the heater collected by the temperature sensor arranged on the heater is acquired in real time.

[0043] S102, whenever it is detected that the duration of the instantaneous temperature value being greater than or equal to the first preset temperature value exceeds a first preset time threshold, a dry-burning warning signal of the heater is generated.

[0044] Here, the first preset temperature value is a pre-set temperature threshold used to determine whether the temperature of the heater is too high and there is a risk of dry burning. The first preset time threshold refers to the time threshold for the heater to trigger a dry burning warning.

[0045] With respect to the above step S102, in a specific implementation, after obtaining the instantaneous temperature value of the heater detected by the temperature sensor, the instantaneous temperature value is compared with the first preset temperature value. Since the temperature sensor collects the instantaneous temperature value in real time according to a predetermined collection frequency, for example, the instantaneous temperature value is collected once every second, the duration of the instantaneous temperature value being greater than or equal to the first preset temperature value is counted. Whenever it is detected that the duration of the instantaneous temperature value being greater than or equal to the first preset temperature value exceeds the first preset time threshold, a dry-burning warning signal of the heater is generated.

[0046] S103, when it is detected that the number of the dry-burning warning signals within the second preset time threshold is greater than the preset number threshold, it is considered that the heater has a dry-burning fault, and a dry-burning fault signal of the heater is generated.

[0047] Here, the second preset time threshold refers to the time threshold at which the heater triggers a dry-boiling fault.

[0048] With respect to the above step S103, in specific implementation, within the second preset time threshold, the number of dry-burning warning signals generated is detected. When the number of dry-burning warning signals generated within the second preset time threshold is greater than the preset number threshold, it is considered that the heater has a dry-burning fault, and a dry-burning fault signal of the heater is generated. At this time, a stop working instruction of the heater may also be generated and sent to the heater to stop the heater from working and prevent the heater from being damaged.

[0049] In the prior art, the duration that the instantaneous temperature value of the heater is greater than or equal to the preset temperature value is counted. When the duration exceeds the time threshold, it is considered that the heater has a dry-burn fault. However, since the temperature value at the gas gathering location inside the heater is relatively high, this may cause a false fault alarm. The present application adds a determination condition for the number of dry-burn warning signals. By determining the number of dry-burn warning signals generated within a second preset time threshold, it is considered that a dry-burn fault exists when the number of dry-burn warning signals is greater than the number threshold. This not only avoids false fault alarms, but also enables timely detection when the heater actually has a dry-burn fault, thereby improving the accuracy of heater dry-burn fault detection and ensuring vehicle safety.

[0050] As an optional embodiment, after generating a dry-burn fault signal of the heater, the dry-burn fault detection method includes:

[0051] A fault light on a dashboard of the vehicle is controlled to light up based on the dry-burn fault signal.

[0052] In order to ensure that the driver can understand the vehicle status in time and take corresponding measures, the dry-burning fault can be prompted by the fault light on the dashboard. With respect to the above steps, in specific implementation, after the dry-burning fault signal of the heater is generated, the fault light on the dashboard of the vehicle is controlled to light up based on the dry-burning fault signal, so that the driver can understand the vehicle fault in time and take corresponding measures in time.

[0053] As an optional embodiment, the dry burning fault detection method provided in the present application further includes:

[0054] When it is detected that the number of the dry-boiling warning signals within the second preset time threshold is less than or equal to the preset number threshold, the plurality of dry-boiling warning signals are regarded as interference signals.

[0055] With respect to the above steps, in specific implementation, when it is detected that the number of dry-burning warning signals generated within the second preset time threshold is less than or equal to the preset number threshold, it is considered that the heater does not have a dry-burning fault, and the generated multiple dry-burning warning signals are regarded as interference signals. In this way, under the premise of issuing a dry-burning warning signal for the heater, by determining the number of dry-burning warning signals generated within the second preset time threshold, when the number of dry-burning warning signals is less than or equal to the number threshold, it is considered to be a false alarm of a fault, and the generated dry-burning warning signal is shielded, thereby reducing the situation of false alarm of a fault.

[0056] As an optional embodiment, after generating a dry-burn fault signal of the heater, the dry-burn fault detection method includes:

[0057] When it is detected that the duration of the instantaneous temperature value being less than the second preset temperature value exceeds a third preset time threshold, a working instruction is sent to the heater to restore the working state of the heater.

[0058] Here, the second preset temperature value is a temperature threshold used to determine whether the temperature of the heater has returned to normal. The third preset time threshold is a time threshold for the heater to recover from a fault.

[0059] After the dry-burning fault occurs in the heater, the temperature of the heater needs to be continuously detected. When the temperature of the heater is lower than the second preset temperature threshold for a period of time, it is considered that the dry-burning fault of the heater is resolved and the working state of the heater is restored. With respect to the above steps, in specific implementation, after the dry-burning fault signal of the heater is generated, the instantaneous temperature value of the heater detected by the temperature sensor is also obtained, and the instantaneous temperature value is compared with the second preset temperature value. At this time, the duration of the instantaneous temperature value being less than the second preset temperature value is counted. When it is detected that the duration of the instantaneous temperature value being less than the second preset temperature value exceeds the third preset time threshold, it means that the dry-burning fault of the heater is resolved, and a work instruction is sent to the heater to restore the working state of the heater.

[0060] As an optional embodiment, the second preset time threshold is calculated by the following steps:

[0061] The first preset time threshold is added to the third preset time threshold, and the added value is multiplied by the safety factor to obtain the second preset time threshold.

[0062] Here, since the first preset time threshold is the time threshold for the heater to trigger a dry-burn warning, and the third preset time threshold is the time threshold for the heater to recover from a fault, the sum of the first preset time threshold and the third preset time threshold is equivalent to the time range from the dry-burn warning to the fault removal of the heater. Therefore, the second preset time threshold needs to be jointly calculated by the first preset time threshold and the third preset time threshold. Specifically, the first preset time threshold is added to the third preset time threshold, and the added value is multiplied by the safety factor to obtain the second preset time threshold.

[0063] The dry-burn fault detection method for a heater provided in an embodiment of the present application first obtains in real time the instantaneous temperature value of the heater collected by a temperature sensor arranged on the heater in a vehicle; then, whenever it is detected that the instantaneous temperature value is greater than or equal to a first preset temperature value and the duration exceeds a first preset time threshold, a dry-burn warning signal for the heater is generated; finally, when it is detected that the number of dry-burn warning signals within a second preset time threshold is greater than a preset number threshold, it is considered that the heater has a dry-burn fault, and a dry-burn fault signal for the heater is generated.

[0064] The present application compares the instantaneous temperature value of the heater collected in real time with the first preset temperature value, and generates a dry-burn warning signal when the time when the instantaneous temperature value is greater than or equal to the first preset temperature value exceeds the first preset time threshold, and then judges the number of dry-burn warning signals generated within the second preset time threshold, and considers that a dry-burn fault exists when the number of dry-burn warning signals exceeds the preset number threshold. In this way, compared with the heater dry-burn fault detection method in the prior art, the present application adds a determination condition for the number of dry-burn warning signals, and judges the number of dry-burn warning signals generated within the second preset time threshold, and considers that a dry-burn fault exists when the number of dry-burn warning signals is greater than the number threshold. This not only avoids the situation of false fault alarms, but also can detect in time when the heater actually has a dry-burn fault, thereby improving the accuracy of heater dry-burn fault detection and ensuring the safety of the vehicle.

[0065] See also Figure 2 , Figure 3 , Figure 2 This is one of the structural schematic diagrams of a dry-burning fault detection device for a heater provided in an embodiment of the present application. Figure 3 This is a second structural diagram of a dry-burning fault detection device for a heater provided in an embodiment of the present application. Figure 2 As shown in , the dry burning fault detection device 200 includes:

[0066] The temperature value acquisition module 201 is used to acquire in real time the instantaneous temperature value of the heater collected by the temperature sensor arranged on the heater in the vehicle;

[0067] A dry-burn warning signal generating module 202 is used to generate a dry-burn warning signal of the heater whenever it is detected that the instantaneous temperature value is greater than or equal to the first preset temperature value for a duration exceeding a first preset time threshold;

[0068] The dry-burn fault signal generating module 203 is used to determine that the heater has a dry-burn fault and generate a dry-burn fault signal of the heater when the number of the dry-burn warning signals detected within a second preset time threshold is greater than a preset number threshold.

[0069] For further information, see Figure 3 The dry-burning fault detection device 200 further includes an instruction sending module 204. After the dry-burning fault signal of the heater is generated, the instruction sending module 204 is used to:

[0070] When it is detected that the duration of the instantaneous temperature value being less than the second preset temperature value exceeds a third preset time threshold, a working instruction is sent to the heater to restore the working state of the heater.

[0071] Furthermore, the dry-burning fault signal generating module 203 is further configured to calculate the second preset time threshold through the following steps:

[0072] The first preset time threshold is added to the third preset time threshold, and the added value is multiplied by the safety factor to obtain the second preset time threshold.

[0073] For further information, see Figure 3 The dry burning fault detection device 200 further includes a signal shielding module 205, and the signal shielding module 205 is used to:

[0074] When it is detected that the number of the dry-boiling warning signals within the second preset time threshold is less than or equal to the preset number threshold, the plurality of dry-boiling warning signals are regarded as interference signals.

[0075] For further information, see Figure 3 The dry-burning fault detection device 200 further includes a fault light control module 206. After the dry-burning fault signal of the heater is generated, the fault light control module 206 is used to:

[0076] A fault light on a dashboard of the vehicle is controlled to light up based on the dry-burn fault signal.

[0077] An embodiment of the present application also provides a vehicle, which may include the dry-burning fault detection device of the heater described above.

[0078] See also Figure 4 , Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. Figure 4 As shown in , the electronic device 400 includes a processor 410 , a memory 420 and a bus 430 .

[0079] The memory 420 stores machine-readable instructions executable by the processor 410. When the electronic device 400 is running, the processor 410 communicates with the memory 420 via the bus 430. When the machine-readable instructions are executed by the processor 410, the above-mentioned Figure 1 The steps of the method for detecting a dry-burning fault of a heater in the method embodiment shown in the embodiment and the specific implementation thereof can be referred to the method embodiment, which will not be described in detail here.

[0080] The present application also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the computer program can execute the above-mentioned Figure 1 The steps of the method for detecting a dry-burning fault of a heater in the method embodiment shown in the embodiment and the specific implementation thereof can be referred to the method embodiment, which will not be described in detail here.

[0081] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0082] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0083] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0084] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0085] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium that is executable by a processor. Based on this understanding, the technical solution of the present application can essentially be embodied in the form of a software product, or in other words, the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0086] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-mentioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-mentioned embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A method for detecting a dry burning fault of a heater, characterized in that: The dry burning fault detection method comprises: Real-time acquisition of the instantaneous temperature value of the heater collected by a temperature sensor arranged on the heater in the vehicle; Whenever it is detected that the instantaneous temperature value is greater than or equal to the first preset temperature value and the duration exceeds a first preset time threshold, a dry-burning warning signal of the heater is generated; When it is detected that the number of the dry-burning warning signals within the second preset time threshold is greater than the preset number threshold, it is considered that the heater has a dry-burning fault, and a dry-burning fault signal of the heater is generated.

2. The dry burning fault detection method according to claim 1, characterized in that: After generating the dry-burn fault signal of the heater, the dry-burn fault detection method includes: When it is detected that the duration of the instantaneous temperature value being less than the second preset temperature value exceeds a third preset time threshold, a working instruction is sent to the heater to restore the working state of the heater.

3. The dry burning fault detection method according to claim 2, characterized in that: The second preset time threshold is calculated by the following steps: The first preset time threshold is added to the third preset time threshold, and the added value is multiplied by the safety factor to obtain the second preset time threshold.

4. The dry burning fault detection method according to claim 1, characterized in that: The dry burning fault detection method further comprises: When it is detected that the number of the dry-boiling warning signals within the second preset time threshold is less than or equal to the preset number threshold, the plurality of dry-boiling warning signals are regarded as interference signals.

5. The dry burning fault detection method according to claim 1, characterized in that: After generating the dry-burn fault signal of the heater, the dry-burn fault detection method includes: A fault light on a dashboard of the vehicle is controlled to light up based on the dry-burn fault signal.

6. A dry burning fault detection device for a heater, characterized in that: The dry burning fault detection device comprises: A temperature value acquisition module, used to acquire in real time the instantaneous temperature value of the heater collected by a temperature sensor arranged on the heater in the vehicle; a dry-burn warning signal generating module, configured to generate a dry-burn warning signal of the heater whenever it is detected that the instantaneous temperature value is greater than or equal to the first preset temperature value and the duration exceeds a first preset time threshold; The dry-burn fault signal generating module is used to determine that the heater has a dry-burn fault and generate a dry-burn fault signal of the heater when the number of the dry-burn warning signals detected within a second preset time threshold is greater than a preset number threshold.

7. The dry burning fault detection device according to claim 6, characterized in that: The dry-burning fault detection device further includes an instruction sending module. After the dry-burning fault signal of the heater is generated, the instruction sending module is used to: When it is detected that the duration of the instantaneous temperature value being less than the second preset temperature value exceeds a third preset time threshold, a working instruction is sent to the heater to restore the working state of the heater.

8. A vehicle, characterized in that: The vehicle comprises a heater dry-burn fault detection device, and the dry-burn fault detection device is used to implement the heater dry-burn fault detection method according to any one of claims 1-5.

9. An electronic device, characterized in that: include: A processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate through the bus, and the machine-readable instructions are executed by the processor to execute the steps of the dry-burning fault detection method for the heater as described in any one of claims 1 to 5.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method for detecting dry-burning fault of a heater according to any one of claims 1 to 5 are executed.

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