Heating control method, device, apparatus and storage medium

Abstract

The application provides a heating control method, device, equipment and storage medium. The current actual temperature of a fuel heater is obtained. If the temperature difference between the current actual temperature and a target temperature is less than a first preset temperature difference, a first starting instruction is sent to the fuel heater, and the first starting instruction is used to control the fuel heater to start heating. When the fuel heater heats to a temperature difference greater than a second preset temperature difference, the fuel heater is controlled to stop heating, a PTC heater is controlled to heat based on a PWM control parameter, the PWM control parameter includes a feedforward control parameter and a PID control parameter, and a mixed air door is controlled to drive in the direction of a hot end. Through the linkage control of the fuel heater, the PTC heater and the mixed air door, the air port temperature fluctuation is reduced, and the user comfort is improved.

Description

Technical Field

[0001] This application relates to the field of equipment control technology, and in particular to a heating control method, device, equipment and storage medium. Background Technology

[0002] Winter heating for electric vehicles significantly reduces their driving range. Therefore, electric vehicles are typically equipped with fuel heaters to provide heating for the interior by burning diesel fuel. Currently, the fuel heater needs to be turned off after reaching a certain temperature, and its temperature drops rapidly after being turned off; it then needs to be restarted when the temperature drops to a certain level. The fuel heater requires approximately two minutes of preheating before its temperature rises, but this preheating process is insufficient to meet the heating needs of the vehicle in extremely cold conditions. Furthermore, after the fuel heater is turned off, the temperature fluctuations at the air vents are significant, resulting in poor passenger comfort. Currently, some new energy vehicles also incorporate a combined air conditioning system, fuel heater, and PTC heater. For example, Chinese invention application CN110001352A, published on July 2, 2019, discloses a thermal management device for new energy vehicles, which mainly includes an air conditioning system, a fuel heater, a first electric heater, a heating core, and an intermediate heat exchanger. The evaporator in the heating core and air conditioning assembly is located in the air conditioning unit of the new energy vehicle. The heating core heats the air inside the vehicle, while the evaporator cools and dehumidifies it. The first electric heater, a PTC, is connected to the heating core and heats the first coolant flowing in the first coolant circuit (i.e., the passenger compartment heating water circuit). Specifically, the first electric heater mainly operates when the fuel heater is low on fuel or malfunctions (second passenger compartment heating mode), or is activated to supplement heat according to specific usage needs when the fuel heater is operating (first passenger compartment heating mode). Therefore, there are still shortcomings: the preheating process of the fuel heater cannot meet the vehicle's heating needs in extremely cold conditions, and after the fuel heater is turned off, the temperature fluctuation at the air vents is large, resulting in poor passenger comfort. Summary of the Invention

[0003] This application provides a heating control method, device, equipment, and storage medium to solve the above-mentioned technical problems.

[0004] In a first aspect, this application provides a heating control method applied to an electronic device, the electronic device being communicatively connected to a heating system, the heating system including a fuel oil heater, a PTC heater, and a mixing damper, the method comprising:

[0005] Obtain the current actual temperature of the fuel heater;

[0006] If the temperature difference between the current actual temperature and the target temperature is less than the first preset temperature difference, a first start command is sent to the fuel heater, and the first start command is used to control the fuel heater to start heating.

[0007] When the fuel heater heats the fuel until the temperature difference between the current actual temperature and the target temperature is greater than the second preset temperature difference, a first shutdown command is sent to the fuel heater, a second start command is sent to the PTC heater, and a first air outlet adjustment command is sent to the mixing damper. The first shutdown command is used to control the fuel heater to stop heating; the second start command is used to control the heating of the PTC heater based on pulse width modulation (PWM) control parameters, which include feedforward control parameters and process (Proportion Integral Differential, PID) control parameters; the air outlet adjustment command is used to control the mixing damper to drive towards the hot end.

[0008] In some implementations of the first aspect, before sending the first start command to the fuel heater, the method further includes:

[0009] The current ambient temperature and the target air outlet temperature of the mixing damper are obtained, and the compensation temperature corresponding to the current ambient temperature is determined based on the preset relationship between the ambient temperature and the compensation temperature.

[0010] The target temperature of the fuel heater is determined based on the target air outlet temperature and the compensation temperature.

[0011] In some implementations of the first aspect, after sending the first start command to the fuel heater, the method further includes:

[0012] During the preheating of the fuel heater, the PTC heater is heated based on the PWM control parameters.

[0013] In some implementations of the first aspect, after sending the first start command to the fuel heater, the method further includes:

[0014] A second air outlet adjustment command is sent to the mixing damper, the second air outlet adjustment command being used to control the mixing damper to drive towards the cold end.

[0015] In some implementations of the first aspect, before sending the second start command to the PTC heater, the method further includes:

[0016] Based on the preset correspondence between ambient temperature and feedforward control parameters, the feedforward control parameters corresponding to the current ambient temperature are determined.

[0017] The PID control parameters are calculated based on the actual PTC temperature of the PTC heater using a preset PID control function.

[0018] Based on the feedforward control parameters and PID control parameters, the PWM control parameters for the PTC heater are generated.

[0019] In some implementations of the first aspect, determining the feedforward control parameters corresponding to the current ambient temperature based on a preset temperature relationship table includes:

[0020] Obtain the current ambient temperature and the actual evaporator temperature;

[0021] Determine the temperature difference value, which is the difference between the target outlet temperature of the mixing air vent and the actual evaporator temperature;

[0022] The feedforward control parameters are determined based on the temperature difference and the ambient temperature.

[0023] In some implementations of the first aspect, the expression of the preset PID control function is:

[0024] ;

[0025] Among them, DR PID For PID control parameters, ΔT is the difference between the target temperature and the actual PTC temperature, and K is the value of the PID control parameter. P K is the proportionality coefficient. I K is the integral coefficient. D is the differential coefficient.

[0026] Secondly, this application also provides a heating control device mounted on an electronic device, the electronic device being communicatively connected to a heating system, the heating system including a fuel oil heater, a PTC heater, and a mixing damper, the device comprising:

[0027] The acquisition module is used to acquire the actual temperature of the fuel heater;

[0028] The first sending module is used to send a first start command to the fuel heater if the temperature difference between the actual temperature and the target temperature is less than a first preset temperature difference. The first start command is used to control the fuel heater to start heating.

[0029] The second sending module is configured to send a first shutdown command to the fuel heater, a second start command to the PTC heater, and a first air outlet adjustment command to the mixing damper when the temperature difference between the current actual temperature and the target temperature is greater than a second preset temperature difference. The first shutdown command is used to control the fuel heater to stop heating; the second start command is used to control the heating of the PTC heater based on PWM control parameters, including feedforward control parameters and PID control parameters; and the air outlet adjustment command is used to control the mixing damper to drive towards the hot end.

[0030] Thirdly, this application also provides an electronic device, including a processor and a memory, the memory being used to store a computer program, which, when executed by the processor, implements the heating control method as described in the first aspect.

[0031] Fourthly, this application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the heating control method as described in the first aspect.

[0032] Compared with the prior art, this application has at least the following beneficial effects:

[0033] By acquiring the current actual temperature of the fuel heater, and based on the temperature difference between the current actual temperature and the target temperature, the fuel heater, PTC heater, and mixing damper are controlled in a coordinated manner to reduce air outlet temperature fluctuations and improve user comfort. Specifically, if the temperature difference between the current actual temperature and the target temperature is less than a first preset temperature difference, a first start command is sent to the fuel heater, which controls the fuel heater to start heating. When the temperature difference between the current actual temperature and the target temperature is greater than a second preset temperature difference, a first stop command is sent to the fuel heater, a second start command is sent to the PTC heater, and a first air outlet adjustment command is sent to the mixing damper. The first stop command controls the fuel heater to stop heating. The second start command controls the PTC heater to heat based on PWM control parameters, including feedforward control parameters and PID control parameters. The air outlet adjustment command controls the mixing damper to drive towards the hot end, so that after the fuel heater stops heating, the PTC heater maintains the air supply channel temperature, reduces air outlet temperature fluctuations, and drives the mixing damper towards the hot end to maintain the ambient temperature at the hot end, thereby reducing ambient temperature fluctuations and improving user comfort. Meanwhile, this application achieves temperature control of the PTC heater by combining feedforward control and PID control. This not only enables the PTC heater to maintain a stable temperature, but also allows the PTC heater to heat up rapidly after the fuel heater stops heating, further reducing temperature fluctuations and improving user comfort. Attached Figure Description

[0034] Figure 1 This is a schematic flowchart illustrating the heating control method in an embodiment of this application;

[0035] Figure 2 This is a schematic diagram of the structure of the heating control device shown in the embodiments of this application;

[0036] Figure 3 This is a schematic diagram of the structure of an electronic device shown in an embodiment of this application. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0038] Please refer to Figure 1 , Figure 1This is a flowchart illustrating a heating control method provided in an embodiment of this application. The heating control method of this application can be applied to electronic devices, including but not limited to vehicle terminals, ship terminals, laptops, and tablets. The electronic device is communicatively connected to a heating system, which includes a fuel oil heater, a PTC heater, and a mixing damper. This heating system includes, but is not limited to, heating systems for vehicles such as automobiles and ships. The fuel oil heater and the PTC heater are connected in series in the heating circuit to jointly provide a heat source for the air supply duct. The mixing damper is an outlet adjustment component of the air supply duct, and the air outlet configuration of the mixing damper includes, but is not limited to, a central split-row and diagonal mixed ventilation, a central parallel-row and diagonal mixed ventilation, and a central parallel-row and central split-row mixed ventilation. Figure 1 As shown, the heating control method of this embodiment includes steps S101 to S103, which are described in detail below:

[0039] Step S101: Obtain the current actual temperature of the fuel heater.

[0040] In this step, the fuel heater is equipped with a temperature sensor, which can monitor the temperature data of the fuel heater and transmit the temperature data to electronic equipment for processing.

[0041] Step S102: If the temperature difference between the current actual temperature and the target temperature is less than the first preset temperature difference, a first start command is sent to the fuel heater. The first start command is used to control the fuel heater to start heating.

[0042] In this step, the target temperature is the heating target value of the fuel heater, which can be obtained by compensating for the ambient temperature or the target outlet temperature of the mixing damper. For example, the first preset temperature difference can be 0℃, meaning that if the current actual temperature - target temperature < 0℃, then the current actual temperature is lower than the target temperature, and the fuel heater is controlled to start heating. It is understood that the specific value of the first preset temperature difference can be adjusted according to the actual application scenario. For example, for vehicles mainly driven in extremely cold outdoor environments, the specific value of the first preset temperature difference can be increased.

[0043] Step S103: When the fuel heater heats the fuel to a temperature difference greater than the second preset temperature difference between the current actual temperature and the target temperature, a first shutdown command is sent to the fuel heater, a second start command is sent to the PTC heater, and a first air outlet adjustment command is sent to the mixing damper. The first shutdown command is used to control the fuel heater to stop heating; the second start command is used to control the heating of the PTC heater based on PWM control parameters, including feedforward control parameters and PID control parameters; the air outlet adjustment command is used to control the mixing damper to drive towards the hot end.

[0044] In this step, the fuel heater continues heating until the temperature difference between the current actual temperature and the target temperature exceeds a second preset temperature difference. At this point, the fuel heater stops heating, and the PTC heater takes over. For example, the second preset temperature difference can be 5°C. That is, if the current actual temperature - target temperature > 5°C, it means the current actual temperature is 5°C higher than the target temperature. Continuing to heat would cause greater temperature fluctuations, so the fuel heater is stopped. It is understood that the specific value of the second preset temperature difference can be adjusted according to the actual application scenario and is not limited thereto.

[0045] The PTC heater (PTC heating element) is an electric heater composed of a PTC ceramic heating element and an aluminum tube. This embodiment uses a combination of feedforward control and PID control to achieve temperature control of the PTC heater. Feedforward control enables rapid heating of the PTC heater, while PID control ensures stable PTC control, effectively addressing the problem of rapid temperature drop after the fuel heater stops heating, and reducing outlet temperature fluctuations.

[0046] The hot end direction is the direction of airflow towards the user's location. Since the indoor ambient temperature will drop after the fuel heater stops heating, causing the user to experience significant temperature fluctuations, this embodiment controls the mixing damper to drive towards the hot end, so that the heat source provided by the PTC heater is directed to airflow towards the user's location, reducing the user's perceived temperature fluctuations.

[0047] It should be understood that if the temperature difference between the current actual temperature and the target temperature is between the first preset temperature difference and the second preset temperature difference, the fuel heater will be controlled to maintain the heating state.

[0048] In some embodiments, prior to step S102, the method further includes:

[0049] The current ambient temperature and the target air outlet temperature of the mixing damper are obtained, and the compensation temperature corresponding to the current ambient temperature is determined based on the preset relationship between the ambient temperature and the compensation temperature.

[0050] The target temperature of the fuel heater is determined based on the target air outlet temperature and the compensation temperature.

[0051] In this embodiment, the target air outlet temperature is a temperature value determined based on the panel temperature setpoint of the heating system. Since a lower outdoor ambient temperature has a greater impact on the fuel-fired heater, temperature compensation is performed on the fuel-fired heater. For example, the preset relationship between ambient temperature and compensated temperature is shown in the table below:

[0052]

[0053] Based on the table above, the compensation temperature corresponding to the current ambient temperature can be determined, and the target temperature of the fuel heater can be calculated based on the calculation formula: target temperature = target air outlet temperature + compensation temperature.

[0054] In some embodiments, after step S102, the method further includes:

[0055] During the preheating of the fuel heater, the PTC heater is heated based on the PWM control parameters.

[0056] In this embodiment, since the fuel heater needs to be preheated for about 2 minutes before entering the heating state, in order to reduce temperature fluctuations, during the preheating period of the fuel heater, the PTC heater maintains the air supply channel temperature by combining feedforward control and PID control.

[0057] Optionally, after the fuel heater finishes preheating and enters the heating state, the PTC temperature can be gradually reduced. Optionally, since the temperature of the fuel heater gradually rises after entering the heating state, PWM control parameters can also be used to control the PTC heater heating.

[0058] In some embodiments, after step S102, the method further includes:

[0059] A second air outlet adjustment command is sent to the mixing damper, the second air outlet adjustment command being used to control the mixing damper to drive towards the cold end.

[0060] In this embodiment, the cold end direction is the direction of airflow towards non-user locations. Since the temperature of the fuel heater rises, the outlet temperature of the mixing damper also rises. Directly supplying air to the user may cause discomfort. Therefore, the mixing damper is controlled to drive towards the cold end to ensure that the outlet air temperature remains stable.

[0061] In some embodiments, prior to step S103, the method further includes:

[0062] Based on the preset correspondence between ambient temperature and feedforward control parameters, the feedforward control parameters corresponding to the current ambient temperature are determined.

[0063] The PID control parameters are calculated based on the actual PTC temperature of the PTC heater using a preset PID control function.

[0064] Based on the feedforward control parameters and PID control parameters, the PWM control parameters for the PTC heater are generated.

[0065] In this embodiment, the current related technology of PTC heater control mainly adopts PID control, which can enable the PTC heater to stabilize the temperature. However, the PTC heater also needs a heating process, and large temperature fluctuations are likely to occur during the heating process. Therefore, this embodiment adopts PWM control that combines feedforward control and PID control to achieve rapid heating and stable temperature control of the PTC heater.

[0066] Optionally, the calculation process for the feedforward control parameters includes:

[0067] Obtain the current ambient temperature and the actual evaporator temperature;

[0068] Determine the temperature difference value corresponding to the current ambient temperature, wherein the temperature difference value is the difference between the target outlet temperature of the mixing air vent and the actual evaporator temperature;

[0069] Based on the preset temperature relationship table, and based on the temperature difference and the ambient temperature, the feedforward control parameters are determined.

[0070] In this embodiment, the PWM control parameter is the PWM control duty cycle, the feedforward control parameter is the feedforward control duty cycle, and the PID control parameter is the PID control duty cycle. PWM control duty cycle = feedforward control duty cycle + PID control duty cycle.

[0071] For example, the preset temperature relationship table is shown in the table below:

[0072]

[0073] Optionally, the temperature difference = target outlet temperature - actual evaporator temperature.

[0074] Furthermore, the higher the PWM control duty cycle, the higher the PTC heater temperature; conversely, the lower the PWM control duty cycle, the lower the PTC heater temperature. Optionally, the expression for the preset PID control function is:

[0075] ;

[0076] Among them, DR PID For PID control parameters, ΔT is the difference between the target PTC temperature and the actual PTC temperature during PTC heating, and K is the value of the PID control parameter. P K is the proportionality coefficient. I K is the integral coefficient. D K is the differential coefficient. I =K P / T I K D =K P ×T D T ILet T be the integration time constant. D is the differential time constant.

[0077] To implement the heating control method corresponding to the above method embodiments, and to achieve the corresponding functions and technical effects. See also Figure 2 , Figure 2 This diagram illustrates a structural block diagram of a heating control device according to an embodiment of this application. For ease of explanation, only the parts relevant to this embodiment are shown. The heating control device provided in this embodiment includes:

[0078] The acquisition module 201 is used to acquire the actual temperature of the fuel heater;

[0079] The first sending module 202 is used to send a first start command to the fuel heater if the temperature difference between the actual temperature and the target temperature is less than a first preset temperature difference. The first start command is used to control the fuel heater to start heating.

[0080] The second sending module 203 is used to send a first shutdown command to the fuel heater, a second start command to the PTC heater, and a first air outlet adjustment command to the mixing damper when the temperature difference between the current actual temperature and the target temperature of the fuel heater is greater than a second preset temperature difference. The first shutdown command is used to control the fuel heater to stop heating; the second start command is used to control the heating of the PTC heater based on PWM control parameters, including feedforward control parameters and PID control parameters; and the air outlet adjustment command is used to control the mixing damper to drive towards the hot end.

[0081] In some embodiments, the heating control device further includes:

[0082] The second acquisition module is used to acquire the current ambient temperature and the target air outlet temperature of the mixing damper, and to determine the compensation temperature corresponding to the current ambient temperature based on the preset relationship between the ambient temperature and the compensation temperature.

[0083] The first determining module is used to determine the target temperature of the fuel heater based on the target air outlet temperature and the compensation temperature.

[0084] In some embodiments, the heating control device further includes:

[0085] The control module is used to control the heating of the PTC heater based on the PWM control parameters during the preheating of the fuel heater.

[0086] In some embodiments, the heating control device further includes:

[0087] The third sending module is used to send a second air outlet adjustment command to the mixing damper, the second air outlet adjustment command being used to control the mixing damper to drive towards the cold end.

[0088] In some embodiments, the heating control device further includes:

[0089] The second determining module is used to determine the feedforward control parameters corresponding to the current ambient temperature based on the preset correspondence between ambient temperature and feedforward control parameters.

[0090] The calculation module is used to calculate the PID control parameters based on the actual PTC temperature of the PTC heater using a preset PID control function.

[0091] The generation module is used to generate the PWM control parameters of the PTC heater based on the feedforward control parameters and the PID control parameters.

[0092] In some embodiments, the second determining module is specifically used for:

[0093] Obtain the current ambient temperature and the actual evaporator temperature;

[0094] Determine the temperature difference value corresponding to the current ambient temperature, wherein the temperature difference value is the difference between the target air outlet temperature of the mixing damper and the actual evaporator temperature;

[0095] Based on the preset temperature relationship table, and based on the temperature difference and the ambient temperature, the feedforward control parameters are determined.

[0096] In some embodiments, the expression of the preset PID control function is:

[0097] ;

[0098] Among them, DR PID For PID control parameters, ΔT is the difference between the target PTC temperature and the actual PTC temperature during PTC heating, and K is the value of the PID control parameter. P K is the proportionality coefficient. I K is the integral coefficient. D is the differential coefficient.

[0099] The heating control device described above can implement the heating control method of the above method embodiments. The options in the above method embodiments are also applicable to this embodiment, and will not be described in detail here. The remaining content of this application embodiment can be referred to the content of the above method embodiments, and will not be repeated in this embodiment.

[0100] Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 3As shown, the electronic device 3 of this embodiment includes: at least one processor 30 ( Figure 3 (Only one is shown in the diagram), memory 31, and computer program 32 stored in said memory 31 and executable on said at least one processor 30, wherein said processor 30 executes said computer program 32 to implement the steps in any of the above method embodiments.

[0101] The electronic device 3 can be a vehicle-mounted terminal, a ship terminal, a laptop computer, or a tablet computer, or other computing device. This electronic device may include, but is not limited to, a processor 30 and a memory 31. Those skilled in the art will understand that... Figure 3 This is merely an example of electronic device 3 and does not constitute a limitation on electronic device 3. It may include more or fewer components than shown in the figure, or combine certain components, or different components. For example, it may also include input / output devices, network access devices, etc.

[0102] The processor 30 may be a Central Processing Unit (CPU), or it may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0103] In some embodiments, the memory 31 may be an internal storage unit of the electronic device 3, such as a hard disk or memory of the electronic device 3. In other embodiments, the memory 31 may be an external storage device of the electronic device 3, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the electronic device 3. Furthermore, the memory 31 may include both internal and external storage units of the electronic device 3. The memory 31 is used to store the operating system, applications, boot loader, data, and other programs, such as the program code of the computer program. The memory 31 can also be used to temporarily store data that has been output or will be output.

[0104] In addition, embodiments of this application also provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps in any of the above method embodiments.

[0105] This application provides a computer program product that, when run on an electronic device, causes the electronic device to execute the steps described in the various method embodiments above.

[0106] In the several embodiments provided in this application, it will be understood that each block in the flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those shown in the figures. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved.

[0107] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause an electronic device to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0108] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above descriptions are merely specific embodiments of this application and are not intended to limit the scope of protection of this application. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application for those skilled in the art.

Claims

1. A heating control method, characterized in that, Applied to an electronic device communicatively connected to a heating system, the heating system including a fuel oil heater, a PTC heater, and a mixing damper, the method includes: Obtain the current actual temperature of the fuel heater; If the temperature difference between the current actual temperature and the target temperature is less than the first preset temperature difference, a first start command is sent to the fuel heater, and the first start command is used to control the fuel heater to start heating. When the fuel heater heats the fuel until the temperature difference between the current actual temperature and the target temperature is greater than the second preset temperature difference, a first shutdown command is sent to the fuel heater, a second start command is sent to the PTC heater, and a first air outlet adjustment command is sent to the mixing damper. The first shutdown command is used to control the fuel heater to stop heating; the second start command is used to control the heating of the PTC heater based on PWM control parameters, which include feedforward control parameters and process control parameters; the air outlet adjustment command is used to control the mixing damper to drive towards the hot end. Prior to sending the second start command to the PTC heater, the method further includes: Based on the preset correspondence between ambient temperature, temperature difference and feedforward control parameters, the feedforward control parameters corresponding to the current ambient temperature are determined. The process control parameters are calculated based on the actual PTC temperature of the PTC heater using a preset process control function. Based on the feedforward control parameters and process control parameters, the PWM control parameters for the PTC heater are generated; The step of determining the feedforward control parameters corresponding to the current ambient temperature includes: Obtain the current ambient temperature and the actual evaporator temperature; Determine the temperature difference value, which is the difference between the target outlet temperature of the mixing damper and the actual evaporator temperature; Based on the preset correspondence between ambient temperature, temperature difference, and feedforward control parameters, the feedforward control parameters are determined by the temperature difference and the ambient temperature.

2. The heating control method according to claim 1, characterized in that, Before sending the first start command to the fuel heater, the method further includes: The current ambient temperature and the target air outlet temperature of the mixing damper are obtained, and the compensation temperature corresponding to the current ambient temperature is determined based on the preset relationship between the ambient temperature and the compensation temperature. The target temperature of the fuel heater is determined based on the target air outlet temperature and the compensation temperature.

3. The heating control method according to claim 1, characterized in that, After sending the first start command to the fuel heater, the method further includes: During the preheating of the fuel heater, the PTC heater is heated based on the PWM control parameters.

4. The heating control method according to claim 1, characterized in that, After sending the first start command to the fuel heater, the method further includes: A second air outlet adjustment command is sent to the mixing damper, the second air outlet adjustment command being used to control the mixing damper to drive towards the cold end.

5. The heating control method according to claim 1, characterized in that, The expression for the preset process control function is: ； in, For process control parameters, The difference between the target PTC temperature and the actual PTC temperature during PTC heating. This is the proportionality coefficient. The integral coefficient is... is the differential coefficient.

6. A heating control device, characterized in that, The device is mounted on an electronic device that is communicatively connected to a heating system, the heating system including a fuel oil heater, a PTC heater, and a mixing damper. The acquisition module is used to acquire the actual temperature of the fuel heater; The first sending module is used to send a first start command to the fuel heater if the temperature difference between the actual temperature and the target temperature is less than a first preset temperature difference. The first start command is used to control the fuel heater to start heating. The second sending module is configured to send a first shutdown command to the fuel heater, a second start command to the PTC heater, and a first air outlet adjustment command to the mixing damper when the temperature difference between the current actual temperature and the target temperature of the fuel heater exceeds a second preset temperature difference. The first shutdown command is used to control the fuel heater to stop heating; the second start command is used to control the heating of the PTC heater based on PWM control parameters, including feedforward control parameters and process control parameters; and the air outlet adjustment command is used to control the mixing damper to drive towards the hot end. Prior to sending the second start command to the PTC heater, the method further includes: Based on the preset correspondence between ambient temperature, temperature difference and feedforward control parameters, the feedforward control parameters corresponding to the current ambient temperature are determined. The process control parameters are calculated based on the actual PTC temperature of the PTC heater using a preset process control function. Based on the feedforward control parameters and process control parameters, the PWM control parameters for the PTC heater are generated; The step of determining the feedforward control parameters corresponding to the current ambient temperature includes: Obtain the current ambient temperature and the actual evaporator temperature; Determine the temperature difference value, which is the difference between the target outlet temperature of the mixing damper and the actual evaporator temperature; Based on the preset correspondence between ambient temperature, temperature difference, and feedforward control parameters, the feedforward control parameters are determined by the temperature difference and the ambient temperature.

7. An electronic device, characterized in that, It includes a processor and a memory, the memory being used to store a computer program that, when executed by the processor, implements the heating control method as described in any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, It stores a computer program that, when executed by a processor, implements the heating control method as described in any one of claims 1 to 5.

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