Air conditioner anti-cold wind control method and device and vehicle

Abstract

The application relates to the technical field of vehicles, in particular to an air conditioner cold air prevention control method and device and a vehicle, wherein the method comprises the following steps: acquiring a current environment temperature; if the current environment temperature is lower than a preset temperature, acquiring a current engine water temperature of the vehicle when the vehicle has a heating demand, and determining an engine target rotating speed and a target cold air prevention strategy according to the current engine water temperature; adjusting the rotating speed of the engine of the vehicle to the target rotating speed, and performing air conditioner cold air prevention control based on the target cold air prevention strategy. Therefore, the problem that the user experience is reduced due to the lack of fine control in the background art is solved, and through remote preheating and a fine cold air prevention control strategy, the user's comfort is improved while energy is saved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to an air conditioning anti-cold air control method, device and vehicle. Background Technology

[0002] As cars become more common, people's demands for the riding experience are constantly increasing. Especially in the cold winter, when a vehicle is parked outdoors, the interior temperature can become very low. Although the interior temperature can be raised by turning on the air conditioner to its maximum heating function, the air conditioning system often outputs cold air initially due to the low initial temperature, thus reducing passenger comfort.

[0003] In related technologies, although existing air conditioning systems can heat up the vehicle interior, most of them only consider the heating function of the air conditioning itself and lack a refined heating control strategy, especially in the case of first power-on in cold weather. This leads to energy waste and a reduced user experience, which urgently needs to be addressed. Summary of the Invention

[0004] This application provides an air conditioning anti-cold air control method, device, and vehicle to solve the problem of reduced user experience caused by the lack of refined control in the prior art. Through remote preheating and refined anti-cold air control strategies, it improves user comfort while saving energy.

[0005] The first aspect of this application provides an air conditioning anti-cold air control method, including the following steps:

[0006] Get the current ambient temperature;

[0007] If the current ambient temperature is lower than the preset temperature, when the vehicle has a heating requirement, the current engine coolant temperature of the vehicle is obtained, and the target engine speed and target anti-cold air strategy are determined based on the current engine coolant temperature.

[0008] Adjust the engine speed of the vehicle to the target speed, and perform air conditioning anti-cold air control based on the target anti-cold air strategy.

[0009] According to one embodiment of this application, after determining that the current ambient temperature is lower than the preset temperature, the method further includes:

[0010] Send an air conditioner heating request command to a preset mobile terminal, and determine whether a confirmation command sent by the user based on the air conditioner heating request command has been received;

[0011] If a confirmation command is received from the user based on the air conditioning heating request command, it is determined that the vehicle has the heating requirement.

[0012] According to one embodiment of this application, determining the target engine speed and target anti-cold air strategy based on the current engine coolant temperature includes:

[0013] Based on the confirmation command, the user's desired temperature is determined;

[0014] Calculate the temperature difference between the current engine coolant temperature and the user's desired temperature, and determine the target engine speed, the target airflow of the current vehicle air conditioner, the target blowing mode, and the target circulation mode based on the temperature range in which the temperature difference lies.

[0015] According to one embodiment of this application, the target engine speed is negatively correlated with the current temperature range.

[0016] According to one embodiment of this application, when performing air conditioning anti-cold air control based on the target anti-cold air strategy, the method further includes:

[0017] Obtain the heating duration corresponding to the user's desired temperature;

[0018] Determine whether the current operating time of the vehicle's air conditioning has reached the heating time corresponding to the user's desired temperature;

[0019] If the current operating time of the vehicle air conditioner reaches the heating time corresponding to the user's desired temperature, then the current vehicle air conditioner is turned off.

[0020] According to one embodiment of this application, after determining that the current ambient temperature is lower than the preset temperature, the method further includes:

[0021] Determine whether the vehicle has received an ignition power-on command;

[0022] If the current vehicle receives the ignition power-on command, then if the vehicle air conditioner is in automatic mode, it is determined that the vehicle has the heating requirement.

[0023] According to one embodiment of this application, determining the target engine speed and target anti-cold air strategy based on the current engine coolant temperature includes:

[0024] Determine the current temperature range of the engine coolant;

[0025] The target engine speed, target airflow, target airflow mode, and target circulation mode are determined based on the current temperature range.

[0026] According to one embodiment of this application, the target air volume of the current vehicle air conditioner is positively correlated with the current temperature range.

[0027] According to the air conditioning anti-cold air control method provided in this application embodiment, if the current ambient temperature is lower than the preset temperature, when the vehicle has a heating demand, the current engine coolant temperature of the vehicle is obtained, and the target engine speed and target anti-cold air strategy are determined based on the current engine coolant temperature; the engine speed of the vehicle is adjusted to the target speed, and air conditioning anti-cold air control is performed based on the target anti-cold air strategy. This solves the problem of reduced user experience caused by the lack of refined control in the prior art. Through remote preheating and refined anti-cold air control strategies, user comfort is improved while saving energy.

[0028] A second aspect of this application provides an air conditioning anti-cold air control device, comprising:

[0029] The acquisition module is used to obtain the current ambient temperature;

[0030] The determination module is used to obtain the current engine coolant temperature of the vehicle when the current ambient temperature is lower than the preset temperature and the vehicle has a heating requirement, and to determine the target engine speed and target anti-cold air strategy based on the current engine coolant temperature.

[0031] The control module is used to adjust the engine speed of the vehicle to the target speed and to control the air conditioning to prevent cold air based on the target anti-cold air strategy.

[0032] According to one embodiment of this application, after determining that the current ambient temperature is lower than the preset temperature, the determining module is further configured to:

[0033] Send an air conditioner heating request command to a preset mobile terminal, and determine whether a confirmation command sent by the user based on the air conditioner heating request command has been received;

[0034] If a confirmation command is received from the user based on the air conditioning heating request command, it is determined that the vehicle has the heating requirement.

[0035] According to one embodiment of this application, the determining module is configured to:

[0036] Based on the confirmation command, the user's desired temperature is determined;

[0037] Calculate the temperature difference between the current engine coolant temperature and the user's desired temperature, and determine the target engine speed, the target airflow of the current vehicle air conditioner, the target blowing mode, and the target circulation mode based on the temperature range in which the temperature difference lies.

[0038] According to one embodiment of this application, the target engine speed is negatively correlated with the current temperature range.

[0039] According to one embodiment of this application, when controlling the air conditioning system to prevent cold air based on the target cold air prevention strategy, the control module is further configured to:

[0040] Obtain the heating duration corresponding to the user's desired temperature;

[0041] Determine whether the current operating time of the vehicle's air conditioning has reached the heating time corresponding to the user's desired temperature;

[0042] If the current operating time of the vehicle air conditioner reaches the heating time corresponding to the user's desired temperature, then the current vehicle air conditioner is turned off.

[0043] According to one embodiment of this application, after determining that the current ambient temperature is lower than the preset temperature, the determining module is further configured to:

[0044] Determine whether the vehicle has received an ignition power-on command;

[0045] If the current vehicle receives the ignition power-on command, then if the vehicle air conditioner is in automatic mode, it is determined that the vehicle has the heating requirement.

[0046] According to one embodiment of this application, the determining module is configured to:

[0047] Determine the current temperature range of the engine coolant;

[0048] The target engine speed, target airflow, target airflow mode, and target circulation mode are determined based on the current temperature range.

[0049] According to one embodiment of this application, the target air volume of the current vehicle air conditioner is positively correlated with the current temperature range.

[0050] According to the air conditioning anti-cold air control device provided in this application embodiment, if the current ambient temperature is lower than the preset temperature, when the vehicle has a heating demand, the current engine coolant temperature of the vehicle is obtained, and the target engine speed and target anti-cold air strategy are determined based on the current engine coolant temperature; the engine speed of the vehicle is adjusted to the target speed, and air conditioning anti-cold air control is performed based on the target anti-cold air strategy. This solves the problem of reduced user experience caused by the lack of refined control in the prior art. Through remote preheating and refined anti-cold air control strategies, user comfort is improved while saving energy.

[0051] A third aspect of this application provides a vehicle, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the air conditioning anti-cold air control method as described in the above embodiments.

[0052] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0053] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0054] Figure 1 This is a schematic diagram of the structure of an air conditioning anti-cold air control system according to an embodiment of this application;

[0055] Figure 2 This is a flowchart of an air conditioning anti-cold air control method provided according to an embodiment of this application;

[0056] Figure 3 This is a flowchart of a remote air conditioning heating control method according to an embodiment of this application;

[0057] Figure 4 This is a flowchart of an air conditioning anti-cold air control method for a current vehicle that is not an electric vehicle, according to an embodiment of this application;

[0058] Figure 5 A flowchart of an air conditioning anti-cold air control method according to an embodiment of this application, wherein the current vehicle is an electric vehicle and uses a PTC heating system;

[0059] Figure 6 The flowchart shows a method for controlling the cold air of an air conditioner using a water-heated PTC system, where the current vehicle is an electric vehicle, according to one embodiment of this application.

[0060] Figure 7 This is a block diagram of an air conditioning anti-cold air control device according to an embodiment of this application;

[0061] Figure 8 This is a schematic diagram of the vehicle structure provided in an embodiment of this application. Detailed Implementation

[0062] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0063] The following description, with reference to the accompanying drawings, describes an air conditioning anti-cold air control method, device, and vehicle according to embodiments of this application. This invention significantly improves the user's experience after entering the vehicle by implementing a refined design and optimized control algorithm for air conditioning heating. Especially in cold winters, when a large amount of cold air accumulates in the vehicle, it takes a considerable amount of time for the interior temperature to rise to a comfortable level. This application remotely activates the air conditioning heating function before the user enters the vehicle, greatly reducing user discomfort. Furthermore, in cold winters, because the vehicle's interior temperature is similar to the ambient temperature after prolonged parking, if the user enters directly, the optimized heating algorithm can rapidly raise the interior temperature. After the user enters and the vehicle is powered on, strategies to prevent cold air from blowing out are implemented, thereby achieving energy savings and improving user comfort, significantly enhancing the user experience.

[0064] Before introducing the air conditioning anti-cold air control method of the embodiments of this application, the air conditioning anti-cold air control method of this application involves an air conditioning anti-cold air control system.

[0065] Specifically, such as Figure 1 As shown, the air conditioning anti-cold air control system of this application includes an air conditioning controller (AC), an outside temperature sensor (TAB), an air conditioning system (HVAC), a gateway (CGW), an engine management system (EMS), a power domain controller (PDC), a vehicle control unit (VCU), a heater (PTC), a telematics box (TBOX), and a mobile terminal.

[0066] The system includes: an AC controller (for remote air conditioning and heating), an TAB sensor (for collecting outside temperature data), an HVAC system (including the air conditioning unit, compressor, condenser, expansion valve, and heating ventilation system), a PTC heater (for heating air or water to provide heat to the vehicle), a CGW gateway (for routing messages and signals between multiple CAN buses), an EMS / PDC / VCU controller (for powering on the vehicle and starting the engine), a TBOX controller (for issuing and receiving user interaction commands), a mobile terminal (e.g., a mobile device such as a phone or in-vehicle entertainment system), and a PTC heater (for executing heating commands from the AC and heating air or water).

[0067] Furthermore, the TAB transmits the collected ambient temperature to the TMC (Traffic Message Channel) via hardwired connection. The TMC then transmits the ambient temperature to the CAN bus via CAN1. Upon receiving the data, the TBOX determines the ambient temperature. If the ambient temperature is low, the TBOX wirelessly sends a confirmation message to the mobile terminal, inquiring whether the user wants to activate remote air conditioning heating. The user agrees and presets the activation time and running time, then transmits the signal back to the TBOX via the wireless network. The TBOX then publishes the user's agreement and preset activation time / running time information to the network via CAN2. At this point, the TMC receives the command. When the preset activation time arrives, it sends a power-on request command via CAN1. The EMS / PDC / VCU receives the command on CAN3, then powers on the vehicle and reports the power-on status to the CAN network via CAN3. The TCM (Transmission Control Module) then... The module integrates hard-wired information from the CAN network, TAB, and air conditioning system, and executes remote heating or local anti-cold air blowing strategy according to preset logic policies. After the remote heating is completed, the user is notified of the completion of remote heating through CAN1. The CGW routes the messages and signals of CAN1, CAN2, and CAN3 according to the routing table to realize the interaction between multiple CAN channels.

[0068] The following describes the air conditioning anti-cold air control method using the above-mentioned air conditioning anti-cold air control system.

[0069] Specifically, Figure 2 This is a flowchart illustrating an air conditioning anti-cold air control method provided in an embodiment of this application.

[0070] like Figure 2 As shown, the air conditioner's anti-cold air control method includes the following steps:

[0071] In step S201, the current ambient temperature is obtained.

[0072] The current ambient temperature refers to the temperature of the environment in which the vehicle is currently located.

[0073] Specifically, the embodiments of this application can obtain the current ambient temperature through a temperature sensor, which is not specifically limited here.

[0074] In step S202, if the current ambient temperature is lower than the preset temperature, when the vehicle has a heating requirement, the current engine coolant temperature of the vehicle is obtained, and the target engine speed and target anti-cold air strategy are determined based on the current engine coolant temperature.

[0075] In step S203, the engine speed of the vehicle is adjusted to the target speed, and the air conditioning anti-cold air control is performed based on the target anti-cold air strategy.

[0076] The preset temperature can be a temperature set in advance by those skilled in the art based on the actual situation, such as 5°C, and is not specifically limited here.

[0077] Optionally, the current engine coolant temperature can be obtained through a temperature sensor in the embodiments of this application, which is not specifically limited here.

[0078] Furthermore, in some embodiments, after determining that the current ambient temperature is lower than a preset temperature, the method further includes: sending an air conditioning heating request command to a preset mobile terminal, and determining whether a confirmation command sent by the user based on the air conditioning heating request command is received; if a confirmation command sent by the user based on the air conditioning heating request command is received, it is determined that the vehicle has a heating demand.

[0079] The mobile terminal can be a mobile phone or other handheld communication device with shortwave radio communication function, and no specific limitation is made here.

[0080] Specifically, when a user is not in the vehicle and needs to remotely activate the air conditioning for heating, if the current ambient temperature is lower than the preset temperature, an air conditioning heating request command is sent to a preset mobile terminal to request the activation of the remote air conditioning heating function. If the user confirms and agrees to activate the remote air conditioning heating function, i.e., a confirmation command is received from the user based on the air conditioning heating request command, it is determined that the vehicle has a heating need. Conversely, if the current ambient temperature is greater than or equal to the preset temperature, the vehicle does not have a heating need.

[0081] Furthermore, in some embodiments, after determining that the current ambient temperature is lower than a preset temperature, the method further includes: determining whether the current vehicle has received an ignition power-on command; if the current vehicle has received an ignition power-on command, then if the current vehicle air conditioner is in automatic mode, it is determined that the vehicle has a heating demand.

[0082] Specifically, after determining that the current ambient temperature is lower than the preset temperature, when the user is in the vehicle, the system can check the vehicle's dashboard to see if the vehicle has received an ignition command (IG). If the vehicle has received an ignition command, the air conditioning control system will further determine whether the vehicle's air conditioning is in automatic mode. If the air conditioning is in automatic mode, it is determined that the vehicle has a heating need. Conversely, if the air conditioning is not in automatic mode, it is determined that the vehicle does not have a heating need, and the air conditioning will blow air according to the user's settings.

[0083] Furthermore, if the vehicle currently requires heating, the engine speed is adjusted to a first target speed, and the vehicle's air conditioning is controlled to operate based on the first target anti-cold-wind strategy. A voice prompt is given to the user upon first entering the first target anti-cold-wind strategy, such as "Currently in anti-cold-wind mode." For example, when the vehicle is a non-electric vehicle, the first target speed in this embodiment can be an engine speed increase of 2000 rpm, and the first target anti-cold-wind strategy can be a window-blowing mode, air conditioning fan speed at level 0, and internal circulation mode. When the vehicle is an electric vehicle, the first target anti-cold-wind strategy in this embodiment can be a window-blowing mode, air conditioning fan speed at level 0, and internal circulation mode.

[0084] Furthermore, in some embodiments, determining the target engine speed and target anti-cold air strategy based on the current engine coolant temperature includes: determining the user's required temperature based on a confirmation command; calculating the temperature difference between the current engine coolant temperature and the user's required temperature; and determining the target engine speed, the target airflow of the current vehicle air conditioner, the target blowing mode, and the target circulation mode based on the temperature range in which the temperature difference is located.

[0085] In some embodiments, the target engine speed is negatively correlated with the current temperature range.

[0086] Specifically, this application embodiment can determine the user's required temperature based on a confirmation command, calculate the difference between the current engine coolant temperature and the user's required temperature, and determine whether the difference between the current engine coolant temperature and the user's required temperature is greater than or equal to a first preset threshold and whether the difference is less than a second preset threshold. If the difference between the current engine coolant temperature and the user's required temperature is greater than or equal to the first preset threshold and less than the second preset threshold, then the second target anti-cold air strategy is used as the target operating mode. The engine speed of the vehicle is adjusted to the second target speed, and the vehicle air conditioner is controlled to operate based on the second target anti-cold air strategy. The second target speed is less than the first target speed, and the airflow of the second target anti-cold air strategy is greater than the airflow of the first target anti-cold air strategy. For example, the second target speed in this application embodiment can be an engine speed increase of 1500 rpm, and the second target anti-cold air strategy can be a window blowing mode, an air conditioning fan speed of level 8, or an external circulation mode; no specific limitations are made here.

[0087] Furthermore, if the difference between the current engine coolant temperature and the user's desired temperature is less than a third preset threshold, then the third target anti-cold air strategy is adopted as the target operating mode. The vehicle's engine speed is adjusted to the third target speed, and the vehicle's air conditioning is controlled to operate based on the third target anti-cold air strategy. Here, the third preset threshold is greater than the second preset threshold, and the third target speed is less than the second target speed. For example, in this embodiment, the third target speed can be an engine speed increase of 500 rpm, and the third target anti-cold air strategy can be a window blowing mode, an air conditioning fan speed of level 8, or an external circulation mode; no specific limitations are made here.

[0088] Furthermore, if the difference between the current engine coolant temperature and the user's desired temperature is greater than or equal to a third preset threshold, then the fourth target anti-cold air strategy is adopted as the target operating mode. The vehicle's engine speed is adjusted to the fourth target speed, and the vehicle's air conditioning is controlled to operate based on the fourth target anti-cold air strategy. When the current air conditioning operation time reaches the heating time corresponding to the user's desired temperature, a remote heating completion notification is sent to the user. For example, in this embodiment, the fourth target speed can be canceled (i.e., the engine returns to normal speed), and the fourth target anti-cold air strategy can be window blowing mode, air conditioning fan speed at level 8, or external circulation mode; no specific limitations are made here.

[0089] Therefore, the remote air conditioning heating control method according to the embodiments of this application gradually adjusts the engine speed and airflow based on the difference between the current engine coolant temperature and the user's desired temperature. For example, in the initial stage of remote heating, when the difference between the current engine coolant temperature and the user's desired temperature is large, a higher engine speed is requested to improve the engine's operating efficiency and quickly raise the vehicle's interior temperature. As the temperature difference gradually decreases, the engine speed is gradually reduced to maintain a stable interior temperature. Once the temperature difference reaches the predetermined temperature, the engine speed increase is canceled, and the normal speed is restored, thereby further saving energy.

[0090] To facilitate a clearer and more intuitive understanding of the remote air conditioning heating control method of this application by those skilled in the art, the following is combined with... Figure 3 A detailed description by way of example is provided.

[0091] S301, Begin.

[0092] S302: Determine if the ambient temperature is less than 5℃. If so, proceed to S303; otherwise, proceed to S315.

[0093] S303 sends a confirmation message to the user to confirm whether to turn on the remote air conditioning heating.

[0094] S304, the user agrees and presets the required temperature, start time and running time.

[0095] S305, remote air conditioning heating is activated when the preset start time is reached.

[0096] S306, execute window blowing mode, fan speed 0, internal circulation, request engine speed increase of 2000 rpm.

[0097] S307, determine whether the difference between the engine coolant temperature TW and the user-required temperature Tset is less than the first preset threshold T1. If yes, execute S306; otherwise, execute S308.

[0098] S308, execute window blowing mode, fan speed level 8, external circulation, request engine speed increase of 1500 rpm.

[0099] S309, determine whether the difference between the engine coolant temperature TW and the user-required temperature Tset is less than the second preset threshold T2. If yes, execute S308; otherwise, execute S310.

[0100] S310, execute window blowing mode, fan speed level 8, external circulation, request engine speed increase of 500 rpm.

[0101] S311, determine whether the difference between the engine coolant temperature TW and the user-required temperature Tset is greater than the third preset threshold T3. If yes, execute S312; otherwise, execute S310.

[0102] S312, executes window blowing mode, fan speed level 8, external circulation, cancels request for engine speed increase, and the engine returns to normal speed.

[0103] S313, runtime expired.

[0104] S314 Notifies the user that remote heating of the air conditioner has been completed.

[0105] S315, End.

[0106] Therefore, this invention, by judging the ambient temperature, allows users to remotely raise the vehicle's interior temperature in advance when it is low, ensuring a relatively comfortable temperature when the user enters the vehicle, thus improving user comfort and saving time. Under remote heating, the required heating time is determined by judging the user's desired temperature, providing the user with an option. Simultaneously, during remote heating control, the difference between the engine coolant temperature and the user's desired temperature is used to request a significant increase in engine speed, controlling the window blowing mode, shutting off the fan, and using internal circulation to rapidly raise the engine coolant temperature. Once a certain temperature is reached, the requested engine speed increase decreases, the window blowing mode is activated at maximum fan speed, and external circulation is switched to prevent window fogging, until the temperature difference between the interior and coolant temperatures reaches a certain value, at which point the engine speed returns to normal.

[0107] Furthermore, in some embodiments, determining the target engine speed and target anti-cold air strategy based on the current engine coolant temperature also includes: determining the current temperature range of the current engine coolant temperature; and determining the target engine speed, the target airflow of the current vehicle air conditioner, the target blowing mode, and the target circulation mode based on the current temperature range.

[0108] In some embodiments, the target airflow of the vehicle's air conditioning system is positively correlated with the current temperature range.

[0109] Specifically, it determines whether the current engine coolant temperature is greater than or equal to a fourth preset threshold and whether it is less than a fifth preset threshold. If the current engine coolant temperature is less than the fourth preset threshold, the vehicle's air conditioning continues to operate based on the first target anti-cold air strategy. If the current engine coolant temperature is greater than or equal to the fourth preset threshold and less than the fifth preset threshold, the vehicle's engine speed is adjusted to the fifth target speed, and the fifth target anti-cold air strategy is used as the target operating mode. The vehicle's air conditioning operates based on the fifth target anti-cold air strategy. For example, in this embodiment, the fifth target speed can be an engine speed increase of 2000 rpm, and the fifth target anti-cold air strategy can be a window blowing mode, an external circulation mode, and an air conditioning fan speed of level 1. When the fifth target anti-cold air strategy is first entered, the user is reminded that the anti-cold air blowing strategy is currently in window blowing mode.

[0110] Further, it is determined whether the current engine coolant temperature is greater than or equal to a fifth preset threshold and whether the current engine coolant temperature is less than a sixth preset threshold, wherein the airflow of the fifth target anti-cold air strategy is greater than the airflow of the first target anti-cold air strategy; if the current engine coolant temperature is greater than or equal to the fifth preset threshold and less than the sixth preset threshold, the engine speed of the vehicle is controlled to be adjusted to the sixth target speed, and the sixth target anti-cold air strategy is used as the target operating mode, and the current vehicle air conditioning is controlled to operate based on the sixth target anti-cold air strategy, wherein the airflow of the sixth target anti-cold air strategy is greater than the airflow of the fifth target anti-cold air strategy. For example, in this embodiment of the application, the sixth target speed can be an engine speed increase of 2000 rpm mode, and the sixth target anti-cold air strategy can be a window blowing mode, an external circulation mode, or an air conditioning fan speed of level 2, which are not specifically limited here.

[0111] Furthermore, it is determined whether the current engine coolant temperature is lower than the seventh preset threshold. If the current engine coolant temperature is lower than the seventh preset threshold, the engine speed is adjusted to the seventh target speed, and the seventh target anti-cold air strategy is used as the target operating mode. The vehicle air conditioner is then controlled to operate based on the seventh target anti-cold air strategy, wherein the seventh preset threshold is greater than the sixth preset threshold. For example, in this embodiment, the seventh target speed can be an engine speed increase of 2000 rpm, and the seventh target anti-cold air strategy can be a window blowing mode, an external circulation mode, or an air conditioning fan speed of level 3, without specific limitations.

[0112] Furthermore, it is determined whether the current engine coolant temperature is greater than or equal to the seventh preset threshold. If the current engine coolant temperature is greater than or equal to the seventh preset threshold, the engine speed is adjusted to the eighth target speed, and the eighth target anti-cold air strategy is used as the target operating mode. The vehicle air conditioner is then controlled to operate based on the eighth target anti-cold air strategy. After the vehicle air conditioner has been operating based on the eighth target anti-cold air strategy for a period of time, it is controlled to execute automatic mode airflow, requesting the engine speed to increase to the calibrated value. For example, in this embodiment, the eighth target speed can be canceled (i.e., the engine returns to normal speed), and the eighth target anti-cold air strategy can be foot blowing mode, external circulation mode, or air conditioning fan speed at maximum, without specific limitations.

[0113] Therefore, the air conditioning anti-cold air control method of this application can rapidly raise the engine coolant temperature by increasing the engine speed and using a smaller air conditioning airflow in the initial stage of air conditioning anti-cold air control, ensuring that the user is not affected by cold air when getting into the vehicle, thus improving user comfort. Furthermore, in the embodiments of this application, reducing the engine speed as the engine coolant temperature gradually approaches the predetermined temperature can reduce energy consumption and improve system energy efficiency.

[0114] To facilitate a clearer and more intuitive understanding by those skilled in the art of the present application's method for controlling the cold air conditioning of a non-electric vehicle, the following is combined with... Figure 4 A detailed description by way of example is provided.

[0115] S401, Begin.

[0116] S402, IG powered on.

[0117] S403: Determine if the air conditioner is in AUTO mode. If yes, execute S405; otherwise, execute S404.

[0118] S404, airflow is supplied according to user settings.

[0119] S405: Determine if the ambient temperature is less than 5℃. If yes, proceed to S407; otherwise, proceed to S406.

[0120] S406, does not enter anti-cold air control.

[0121] S407, enter anti-cold air control: window blowing mode, fan speed 0, internal circulation, request engine speed increase of 2000rpm, and give voice prompt to the user (first time entering).

[0122] S408: Determine whether the engine coolant temperature TW is less than the fourth preset threshold T4. If yes, execute S407; otherwise, execute S409.

[0123] S409, executes window blowing mode, external circulation, fan speed level 1, requests engine speed to increase by 2000 rpm, reminds user of anti-cold air blowing strategy: window blowing mode (first time entering).

[0124] S410: Determine whether the engine coolant temperature TW is less than the fifth preset threshold T5. If yes, execute S409; otherwise, execute S413.

[0125] S411, execute window blowing mode, external air circulation, fan speed level 2, request engine speed increase by 2000 rpm.

[0126] S412, determine whether the engine coolant temperature TW is less than the sixth preset threshold T6. If yes, execute S411; otherwise, execute S413.

[0127] S413, execute window blowing mode, external air circulation, fan speed level 3, request engine speed increase by 2000 rpm.

[0128] S414: Determine whether the engine coolant temperature TW is greater than the seventh preset threshold T7. If yes, execute S415; otherwise, execute S413.

[0129] S415, execute foot blowing mode, external circulation, maximum fan speed, cancel request for engine speed, and the engine returns to normal speed.

[0130] S416, after a period of time.

[0131] S417, air vents in AUTO mode.

[0132] Therefore, this application takes into account the low ambient temperature in winter. After powering on, to prevent cold air from blowing on the feet, when the engine coolant temperature is below a certain threshold, it enters anti-cold air control mode, such as no airflow, window blowing, and internal circulation. It requests the engine speed to increase by 2000 rpm and provides a voice reminder to the user. As the engine coolant temperature gradually rises, the internal and external circulation modes change until the engine coolant temperature exceeds a seventh preset threshold. In this embodiment, the anti-cold air control mode first cools the engine, then blows air on the face, but stops blowing air. After the engine coolant temperature reaches the seventh preset threshold, the request for engine speed is canceled, the engine returns to normal speed, and the foot blowing mode, external circulation, and maximum fan speed are activated. After a period of time, it enters AUTO mode to blow air.

[0133] Furthermore, in some embodiments, after controlling the current vehicle air conditioning to operate based on the first target anti-cold air strategy, the method further includes: if the current vehicle uses a wind-heated PTC, then determining the target operating mode based on the temperature range of the current air outlet temperature of the wind-heated PTC; if the current vehicle uses a water-heated PTC, then determining the target operating mode based on the temperature range of the current water outlet temperature of the water-heated PTC.

[0134] Specifically, when the vehicle is currently using a PTC heater, the current air outlet temperature of the PTC heater is obtained; it is determined whether the current air outlet temperature is greater than or equal to the eighth preset threshold and whether the current air outlet temperature is less than or equal to the ninth preset threshold; if the current air outlet temperature is greater than or equal to the eighth preset threshold and less than or equal to the ninth preset threshold, then the ninth target anti-cold air strategy is used as the target operating mode, and the current vehicle air conditioner is controlled to operate based on the ninth target anti-cold air strategy; otherwise, the tenth target anti-cold air strategy is used as the target operating mode, and the current vehicle air conditioner is controlled to operate based on the tenth target anti-cold air strategy. The air outlet volume of the ninth target anti-cold air strategy is greater than the air outlet volume of the first target anti-cold air strategy, and the air outlet volume of the tenth target anti-cold air strategy is greater than the air outlet volume of the ninth target anti-cold air strategy.

[0135] The eighth to ninth preset thresholds can be thresholds preset by those skilled in the art based on actual conditions, and are not specifically limited here.

[0136] Specifically, when the vehicle is currently using a PTC (Power Transmission Control) system, the current outlet air temperature of the PTC is obtained through a temperature sensor. It is then determined whether the current outlet air temperature is greater than or equal to an eighth preset threshold and whether it is less than or equal to a ninth preset threshold. If the current outlet air temperature is less than the eighth preset threshold, the vehicle's air conditioning continues to operate based on the first target anti-cold air strategy. If the current outlet air temperature is greater than or equal to the eighth preset threshold and less than or equal to the ninth preset threshold, the ninth target anti-cold air strategy is adopted as the target operating mode, and the vehicle's air conditioning operates based on this strategy. For example, the ninth target anti-cold air strategy in this embodiment can be a window blowing mode, external circulation mode, or air conditioning fan speed at level 1, and is not specifically limited here.

[0137] Furthermore, if the current air outlet temperature is greater than the ninth preset threshold, the tenth target anti-cold air strategy is adopted as the target operating mode, and the current vehicle air conditioner is controlled to operate based on the tenth target anti-cold air strategy. After the current vehicle air conditioner operates based on the tenth target anti-cold air strategy for a period of time, the current vehicle air conditioner is controlled to execute automatic air outlet mode. For example, the tenth target anti-cold air strategy in this embodiment of the application can be window blowing mode, external circulation, or air conditioning fan speed at maximum, and is not specifically limited here.

[0138] To help those skilled in the art to more clearly and intuitively understand that the current vehicle in this application is an electric vehicle and uses a PTC-based air conditioning system to prevent cold air from entering, the following is combined with... Figure 5 A detailed description by way of example is provided.

[0139] S501, Begin.

[0140] S502, IG powered on.

[0141] S503 determines whether the air conditioner is in AUTO mode. If so, execute S505; otherwise, execute S504.

[0142] S504, airflow is supplied according to user settings.

[0143] S505: Determine if the ambient temperature is less than 5℃. If yes, proceed to S507; otherwise, proceed to S506.

[0144] S506, does not enter anti-cold air control.

[0145] S507, enter anti-cold air control: window blowing mode, internal circulation, fan speed 0, and voice prompt to the user (first time entering).

[0146] S508, determine whether the PTC outlet air temperature is less than the eighth preset threshold T8. If yes, execute S507; otherwise, execute S509.

[0147] S509, in window blowing mode, external circulation, fan speed level 1.

[0148] S510: Determine whether the PTC outlet air temperature is less than or greater than the ninth preset threshold T9. If yes, execute S511; otherwise, execute S509.

[0149] S511, window blowing mode, external circulation, maximum airflow setting.

[0150] S512, after a period of time.

[0151] S513, air vents in AUTO mode.

[0152] Furthermore, in some embodiments, when the current vehicle uses a water-based PTC heating system, the current outlet water temperature of the water-based PTC is obtained; it is determined whether the current outlet water temperature is greater than or equal to a tenth preset threshold and whether the current outlet water temperature is less than or equal to an eleventh preset threshold; if the current outlet water temperature is greater than or equal to the tenth preset threshold and less than or equal to the eleventh preset threshold, then the eleventh target anti-cold air strategy is used as the target operating mode, and the current vehicle air conditioner is controlled to operate based on the eleventh target anti-cold air strategy; otherwise, the twelfth target anti-cold air strategy is used as the target operating mode, and the current vehicle air conditioner is controlled to operate based on the twelfth target anti-cold air strategy, wherein the air volume of the eleventh target anti-cold air strategy is greater than the air volume of the first target anti-cold air strategy, and the air volume of the twelfth target anti-cold air strategy is greater than the air volume of the eleventh target anti-cold air strategy.

[0153] The tenth to eleventh preset thresholds can be thresholds preset by those skilled in the art based on actual conditions, and are not specifically limited here.

[0154] Specifically, if the vehicle is an electric vehicle and uses a water-based PTC heating system, the current outlet water temperature of the PTC is obtained through a temperature sensor. It is then determined whether the current outlet water temperature is greater than or equal to a tenth preset threshold and whether it is less than or equal to an eleventh preset threshold. If the current outlet water temperature is less than the tenth preset threshold, the vehicle's air conditioning continues to operate based on the first target anti-cold-wind strategy. If the current outlet water temperature is greater than or equal to the tenth preset threshold and less than or equal to the eleventh preset threshold, the eleventh target anti-cold-wind strategy is adopted as the target operating mode, and the vehicle's air conditioning operates based on this strategy. For example, the eleventh target anti-cold-wind strategy in this embodiment can be a window-blowing mode, external circulation mode, or air conditioning fan speed at level 1; no specific limitations are specified here.

[0155] Furthermore, if the current outlet water temperature is greater than the eleventh preset threshold, the tenth target anti-cold air strategy is adopted as the target operating mode, and the current vehicle air conditioner is controlled to operate based on the tenth target anti-cold air strategy. After the current vehicle air conditioner operates based on the tenth target anti-cold air strategy for a period of time, the current vehicle air conditioner is controlled to execute automatic mode airflow. For example, the tenth target anti-cold air strategy in this embodiment of the application can be window blowing mode, external circulation, or air conditioning fan speed at maximum, and is not specifically limited here.

[0156] To help those skilled in the art to more clearly and intuitively understand that the current vehicle in this application is an electric vehicle and uses a water-heated PTC air conditioning anti-cold air control method, the following is combined with... Figure 6 A detailed description by way of example is provided.

[0157] S601, Begin.

[0158] S602, IG power-on.

[0159] S603: Determine if the air conditioner is in AUTO mode. If yes, execute S605; otherwise, execute S604.

[0160] S604, airflow is supplied according to user settings.

[0161] S605: Determine if the ambient temperature is less than 5℃. If yes, proceed to S607; otherwise, proceed to S606.

[0162] S606, does not enter anti-cold air control.

[0163] S607, enters anti-cold air control: window blowing mode, internal circulation, fan speed 0, and voice prompts the user (first time entering).

[0164] S608, determine whether the PTC outlet water temperature is less than the tenth preset threshold T10. If yes, execute S607; otherwise, execute S609.

[0165] S609, in window blowing mode, external circulation, fan speed level 1.

[0166] S610: Determine whether the PTC outlet water temperature is less than or greater than the ninety-first preset threshold T11. If so, execute S611; otherwise, execute S609.

[0167] S611, window blowing mode, external circulation, maximum airflow setting.

[0168] S612, after a period of time.

[0169] S613, air vents in AUTO mode.

[0170] Therefore, by monitoring the PTC air / water outlet temperature, when the PTC air / water outlet temperature is lower than a certain threshold, it enters anti-cold air control: window blowing mode, internal circulation, fan speed off, and voice reminder to the user. As the PTC air / water outlet temperature rises, the window blowing mode, internal circulation, and fan speed become level 1 until the air / water outlet temperature reaches another threshold, then the window blowing mode, external circulation, and fan speed are set to maximum. After a period of time, the air conditioner executes AUTO mode for air output.

[0171] Furthermore, in some embodiments, when controlling the air conditioning for cold air based on the target cold air prevention strategy, the method further includes: obtaining the heating duration corresponding to the user's required temperature; determining whether the current running time of the vehicle air conditioner reaches the heating duration corresponding to the user's required temperature; and if the current running time of the vehicle air conditioner reaches the heating duration corresponding to the user's required temperature, then turning off the current vehicle air conditioner.

[0172] Specifically, according to the confirmation instruction, the remote air conditioning heating function can be activated and the heating duration corresponding to the user's required temperature, so that the remote air conditioning heating function can be executed when the activation time of the remote air conditioning heating function is reached.

[0173] For example, the correspondence between the user's required temperature and the corresponding heating time can be shown in Table 1:

[0174] Table 1

[0175] Tset (User-required temperature) / °C 16 22 28 32 Heating time / min 10 15 20 30

[0176] For example, when the user's required temperature is 16℃, the corresponding heating time is 10 minutes; when the user's required temperature is 22℃, the corresponding heating time is 15 minutes; when the user's required temperature is 28℃, the corresponding heating time is 20 minutes; and when the user's required temperature is 32℃, the corresponding heating time is 30 minutes.

[0177] Assuming the current user's desired temperature is 16℃, the corresponding heating time is 10 minutes. If the current vehicle air conditioner has been running for 10 minutes, it means the interior temperature has reached the user's desired temperature, and the air conditioner will be turned off. If the current vehicle air conditioner has been running for 5 minutes, it means the interior temperature has not reached the user's desired temperature, and the air conditioner will remain on.

[0178] According to the air conditioning anti-cold air control method proposed in this application, if the current ambient temperature is lower than the preset temperature, when the vehicle has a heating demand, the current engine coolant temperature of the vehicle is obtained, and the target engine speed and target anti-cold air strategy are determined based on the current engine coolant temperature; the engine speed of the vehicle is adjusted to the target speed, and air conditioning anti-cold air control is performed based on the target anti-cold air strategy. This solves the problem of reduced user experience caused by the lack of refined control in the prior art. By remotely setting up heating before the user gets in the vehicle to increase the interior temperature, and by implementing a refined anti-cold air strategy after the user powers on, the user experience is improved, and valuable time is saved.

[0179] Next, the air conditioning anti-cold air control device according to the embodiments of this application is described with reference to the accompanying drawings.

[0180] Figure 7 This is a block diagram of an air conditioning anti-cold air control device according to an embodiment of this application.

[0181] like Figure 7 As shown, the air conditioning anti-cold air control device 10 includes: an acquisition module 100, a determination module 200, and a control module 300.

[0182] The module 100 is used to acquire the current ambient temperature; the module 200 is used to acquire the current engine coolant temperature of the vehicle when the current ambient temperature is lower than the preset temperature and the vehicle has a heating requirement, and to determine the target engine speed and target anti-cold air strategy based on the current engine coolant temperature; the module 300 is used to adjust the engine speed of the vehicle to the target speed and to perform air conditioning anti-cold air control based on the target anti-cold air strategy.

[0183] Furthermore, in some embodiments, after determining that the current ambient temperature is lower than the preset temperature, the determining module 200 is further configured to: send an air conditioning heating request command to a preset mobile terminal, and determine whether a confirmation command sent by the user based on the air conditioning heating request command is received; if a confirmation command sent by the user based on the air conditioning heating request command is received, it is determined that the vehicle has a heating demand.

[0184] Furthermore, in some embodiments, the determining module 200 is used to: determine the user's required temperature based on the confirmation command; calculate the temperature difference between the current engine coolant temperature and the user's required temperature; and determine the engine target speed, the current vehicle air conditioning target air volume, the target blowing mode, and the target circulation mode based on the temperature range in which the temperature difference is located.

[0185] Furthermore, in some embodiments, the target engine speed is negatively correlated with the current temperature range.

[0186] Furthermore, in some embodiments, when controlling the air conditioning for cold air based on the target cold air prevention strategy, the control module 300 is also used to: obtain the heating duration corresponding to the user's required temperature; determine whether the current running time of the vehicle air conditioner reaches the heating duration corresponding to the user's required temperature; and if the current running time of the vehicle air conditioner reaches the heating duration corresponding to the user's required temperature, then turn off the current vehicle air conditioner.

[0187] Furthermore, in some embodiments, after determining that the current ambient temperature is lower than the preset temperature, the determining module 200 is also used to: determine whether the current vehicle has received an ignition power-on command; if the current vehicle has received an ignition power-on command, then when the current vehicle air conditioner is in automatic mode, it is determined that the vehicle has a heating demand.

[0188] Furthermore, in some embodiments, the determining module 200 is used to: determine the current temperature range of the current engine coolant temperature; and determine the target engine speed, the target air volume of the current vehicle air conditioner, the target blowing mode, and the target circulation mode based on the current temperature range.

[0189] Furthermore, in some embodiments, the target airflow of the current vehicle air conditioner is positively correlated with the current temperature range.

[0190] It should be noted that the foregoing explanation of the air conditioner anti-cold air control method embodiment also applies to the air conditioner anti-cold air control device of this embodiment, and will not be repeated here.

[0191] According to the air conditioning anti-cold air control device proposed in this application embodiment, if the current ambient temperature is lower than the preset temperature, when the vehicle has a heating demand, the current engine coolant temperature of the vehicle is obtained, and the target engine speed and target anti-cold air strategy are determined based on the current engine coolant temperature; the engine speed of the vehicle is adjusted to the target speed, and air conditioning anti-cold air control is performed based on the target anti-cold air strategy. This solves the problem of reduced user experience caused by the lack of refined control in the prior art. Through remote preheating and refined anti-cold air control strategies, user comfort is improved while saving energy.

[0192] Figure 8 A schematic diagram of the structure of a vehicle provided in an embodiment of this application. The vehicle may include:

[0193] The memory 801, the processor 802, and the computer program stored on the memory 801 and capable of running on the processor 802.

[0194] When the processor 802 executes the program, it implements the air conditioning anti-cold air control method provided in the above embodiments.

[0195] Furthermore, the vehicle also includes:

[0196] Communication interface 803 is used for communication between memory 801 and processor 802.

[0197] The memory 801 is used to store computer programs that can run on the processor 802.

[0198] The memory 801 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk storage device.

[0199] If the memory 801, processor 802, and communication interface 803 are implemented independently, then the communication interface 803, memory 801, and processor 802 can be interconnected via a bus to complete communication between them. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized into address buses, data buses, control buses, etc. For ease of representation, Figure 8 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0200] Optionally, in a specific implementation, if the memory 801, processor 802, and communication interface 803 are integrated on a single chip, then the memory 801, processor 802, and communication interface 803 can communicate with each other through an internal interface.

[0201] The processor 802 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application.

[0202] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0203] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0204] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0205] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0206] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0207] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0208] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0209] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A method for controlling cold air in an air conditioner, characterized in that, Includes the following steps: Get the current ambient temperature; If the current ambient temperature is lower than the preset temperature, when the vehicle has a heating requirement, the current engine coolant temperature of the vehicle is obtained, and the target engine speed and target anti-cold air strategy are determined based on the current engine coolant temperature. Adjust the engine speed of the vehicle to the target speed, and control the air conditioning to prevent cold air based on the target anti-cold air strategy; After determining that the current ambient temperature is lower than the preset temperature, the method further includes: Send an air conditioner heating request command to a preset mobile terminal, and determine whether a confirmation command sent by the user based on the air conditioner heating request command has been received; If a confirmation instruction is received from the user based on the air conditioning heating request instruction, it is determined that the vehicle has the heating requirement. The step of determining the target engine speed and target anti-cold air strategy based on the current engine coolant temperature includes: Based on the confirmation command, the user's desired temperature is determined; Calculate the temperature difference between the current engine coolant temperature and the user's desired temperature, and determine the target engine speed, the target airflow of the current vehicle air conditioner, the target blowing mode, and the target circulation mode based on the temperature range in which the temperature difference is located; The target engine speed is negatively correlated with the current temperature range; Based on the confirmation command, the user's required temperature is determined, and the difference between the current engine coolant temperature and the user's required temperature is calculated. It is then determined whether the difference between the current engine coolant temperature and the user's required temperature is greater than or equal to a first preset threshold, and whether the difference between the current engine coolant temperature and the user's required temperature is less than a second preset threshold. If the difference between the current engine coolant temperature and the user's required temperature is greater than or equal to the first preset threshold, and the difference between the current engine coolant temperature and the user's required temperature is less than the second preset threshold, then the second target anti-cold air strategy is used as the target operating mode. The engine speed of the vehicle is adjusted to the second target speed, and the vehicle air conditioner is controlled to operate based on the second target anti-cold air strategy. Wherein, the second target speed is less than the first target speed, and the air volume of the second target anti-cold air strategy is greater than the air volume of the first target anti-cold air strategy. If the difference between the current engine coolant temperature and the user's required temperature is less than the third preset threshold, the third target anti-cold air strategy will be used as the target operating mode. The engine speed of the vehicle will be adjusted to the third target speed, and the current vehicle air conditioning will be controlled to operate based on the third target anti-cold air strategy. The third preset threshold is greater than the second preset threshold, and the third target speed is less than the second target speed. If the difference between the current engine coolant temperature and the user's desired temperature is greater than or equal to the third preset threshold, the fourth target anti-cold air strategy will be used as the target operating mode. The engine speed of the vehicle will be adjusted to the fourth target speed, and the current vehicle air conditioner will be controlled to operate based on the fourth target anti-cold air strategy. When the current vehicle air conditioner has been running for the heating time corresponding to the user's desired temperature, a remote heating execution completion notification will be sent to the user.

2. The method according to claim 1, characterized in that, When controlling the air conditioning system to prevent cold air based on the target cold air prevention strategy, the following methods are also included: Obtain the heating duration corresponding to the user's desired temperature; Determine whether the current operating time of the vehicle's air conditioning has reached the heating time corresponding to the user's desired temperature; If the current operating time of the vehicle air conditioner reaches the heating time corresponding to the user's desired temperature, then the current vehicle air conditioner is turned off.

3. An air conditioning anti-cold air control device, used to execute the air conditioning anti-cold air control method as described in any one of claims 1-2, characterized in that, include: The acquisition module is used to obtain the current ambient temperature; The determination module is used to obtain the current engine coolant temperature of the vehicle when the current ambient temperature is lower than the preset temperature and the vehicle has a heating requirement, and to determine the target engine speed and target anti-cold air strategy based on the current engine coolant temperature. The control module is used to adjust the engine speed of the vehicle to the target speed and to control the air conditioning to prevent cold air based on the target anti-cold air strategy.

4. A vehicle, characterized in that, include: The device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the air conditioning anti-cold air control method as described in any one of claims 1-2.

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