Air conditioner cold air prevention control method and device and vehicle

Abstract

The invention relates to the technical field of vehicles, in particular to an air conditioner cold air prevention control method and device and a vehicle. If the current environment temperature is lower than the preset temperature, when the vehicle has the heating requirement, the current engine water temperature of the vehicle is obtained, and the target engine rotating speed and the target cold air prevention strategy are determined according to the current engine water temperature; and the rotating speed of an engine of the vehicle is adjusted to the target rotating speed, and air conditioner cold air prevention control is conducted based on the target cold air prevention strategy. Therefore, the problem that the user experience is reduced due to the lack of refined control in the background technology is solved, and the comfort of the user is improved while energy is saved through the remote preheating and refined cold air prevention control strategy.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an air-conditioning cold wind prevention control method, device and vehicle. Background Art

[0002] With the popularization of automobiles, people's requirements for riding experience are constantly increasing, especially in the cold winter, when the car is parked outdoors, the temperature inside the car will become very low. Although the temperature inside the car can be increased by turning on the maximum heating function of the air conditioner, the temperature inside the car is too low in the initial stage, and the air conditioning system often outputs cold air in the initial stage, which reduces the comfort of the passengers.

[0003] In the related technology, although the existing air-conditioning systems can achieve interior temperature increase in the car, most of them only consider the air-conditioning heating function itself and lack a refined temperature control strategy, especially when powered on for the first time in cold weather, which leads to energy waste and reduced user experience, and needs to be solved urgently. Summary of the invention

[0004] The present application provides an air conditioning cold wind prevention control method, device and vehicle to solve the problem that the background technology lacks refined control, resulting in a reduced user experience. Through remote preheating and refined cold wind prevention control strategies, energy is saved while improving user comfort.

[0005] The first embodiment of the present application provides an air conditioner cold wind prevention control method, comprising 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 demand, the current engine water temperature of the vehicle is obtained, and the engine target speed and target cold wind prevention strategy are determined according to the current engine water temperature;

[0008] The speed of the engine of the vehicle is adjusted to the target speed, and air conditioning cold wind prevention control is performed based on the target cold wind prevention strategy.

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

[0010] Sending an air conditioning heating request instruction to a preset mobile terminal, and determining whether a confirmation instruction sent by a user based on the air conditioning heating request instruction is received;

[0011] If a confirmation instruction sent by the user based on the air-conditioning heating request instruction is received, it is determined that the vehicle has the heating demand.

[0012] According to one embodiment of the present application, determining the target engine speed and the target cold wind prevention strategy according to the current engine water temperature includes:

[0013] Based on the confirmation instruction, determining the user required temperature;

[0014] The temperature difference between the current engine water temperature and the user required temperature is calculated, and the engine target speed, the target air volume, the target blowing mode and the target circulation mode of the current vehicle air conditioner are determined according to the temperature range in which the temperature difference lies.

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

[0016] According to an embodiment of the present application, when the air conditioner cold wind prevention control is performed based on the target cold wind prevention strategy, it also includes:

[0017] Obtaining the heating time corresponding to the user required temperature;

[0018] Determine whether the current operating time of the vehicle air conditioner reaches the heating time corresponding to the user's required temperature;

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

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

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

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

[0023] According to one embodiment of the present application, determining the target engine speed and the target cold wind prevention strategy according to the current engine water temperature includes:

[0024] Determining a current temperature range of the current engine water temperature;

[0025] The target engine speed, the target air volume, the target blowing mode and the target circulation mode of the current vehicle air conditioner are determined according to the current temperature range.

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

[0027] According to the air conditioning cold wind prevention control method provided in the embodiment of the present application, if the current ambient temperature is lower than the preset temperature, then when the vehicle has a heating demand, the current engine water temperature of the vehicle is obtained, and the engine target speed and target cold wind prevention strategy are determined according to the current engine water temperature; the engine speed of the vehicle is adjusted to the target speed, and the air conditioning cold wind prevention control is performed based on the target cold wind prevention strategy. Thus, the problem of the lack of refined control in the background technology leading to a reduced user experience is solved, and through remote preheating and refined cold wind prevention control strategies, the user's comfort is improved while saving energy.

[0028] A second aspect of the present application provides an air conditioner cold wind prevention control device, comprising:

[0029] Acquisition module, used to obtain the current ambient temperature;

[0030] A determination module, configured to obtain a current engine water temperature of the vehicle when the current ambient temperature is lower than a preset temperature and the vehicle has a heating demand, and determine an engine target speed and a target cold wind prevention strategy according to the current engine water temperature;

[0031] A control module is used to adjust the speed of the engine of the vehicle to the target speed and perform air conditioning cold wind prevention control based on the target cold wind prevention strategy.

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

[0033] Sending an air conditioning heating request instruction to a preset mobile terminal, and determining whether a confirmation instruction sent by a user based on the air conditioning heating request instruction is received;

[0034] If a confirmation instruction sent by the user based on the air-conditioning heating request instruction is received, it is determined that the vehicle has the heating demand.

[0035] According to one embodiment of the present application, the determining module is used to:

[0036] Based on the confirmation instruction, determining the user required temperature;

[0037] The temperature difference between the current engine water temperature and the user required temperature is calculated, and the engine target speed, the target air volume, the target blowing mode and the target circulation mode of the current vehicle air conditioner are determined according to the temperature range in which the temperature difference lies.

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

[0039] According to one embodiment of the present application, when the air conditioner cold wind prevention control is performed based on the target cold wind prevention strategy, the control module is further used to:

[0040] Obtaining the heating time corresponding to the user required temperature;

[0041] Determine whether the current operating time of the vehicle air conditioner reaches the heating time corresponding to the user's required temperature;

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

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

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

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

[0046] According to one embodiment of the present application, the determining module is used to:

[0047] Determining a current temperature range of the current engine water temperature;

[0048] The target engine speed, the target air volume, the target blowing mode and the target circulation mode of the current vehicle air conditioner are determined according to the current temperature range.

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

[0050] According to the air conditioning cold wind prevention control device provided by the embodiment of the present application, if the current ambient temperature is lower than the preset temperature, then when the vehicle has a heating demand, the current engine water temperature of the vehicle is obtained, and the engine target speed and target cold wind prevention strategy are determined according to the current engine water temperature; the engine speed of the vehicle is adjusted to the target speed, and the air conditioning cold wind prevention control is performed based on the target cold wind prevention strategy. Thus, the problem of the lack of refined control in the background technology leading to a reduced user experience is solved, and through remote preheating and refined cold wind prevention control strategies, the user's comfort is improved while saving energy.

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

[0052] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0055] Figure 2 A flowchart of an air conditioning cold wind prevention control method provided according to an embodiment of the present application;

[0056] Figure 3 A flow chart of a control method for remote air conditioning heating according to an embodiment of the present application;

[0057] Figure 4 A flowchart of an air conditioning cold wind prevention control method when the current vehicle is not an electric vehicle according to an embodiment of the present application;

[0058] Figure 5 The present vehicle is an electric vehicle and a flow chart of an air conditioning cold wind prevention control method using air-heating PTC according to an embodiment of the present application;

[0059] Figure 6 It is a flowchart of a method for controlling an air conditioner to prevent cold wind, in which the current vehicle is an electric vehicle and a water-heating PTC is used according to an embodiment of the present application;

[0060] Figure 7 Schematic diagram of a block diagram of an air conditioner cold wind prevention control device according to an embodiment of the present application;

[0061] Figure 8 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

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

[0063] The following describes the air conditioning cold wind prevention control method, device and vehicle of the embodiment of the present application with reference to the accompanying drawings. The present invention greatly improves the user's experience after getting on the vehicle by performing a refined design and optimization control algorithm for air conditioning heating, especially in the cold winter when a large amount of cold air gathers in the vehicle. At this time, after the user gets on the vehicle, it takes a long time to raise the temperature inside the vehicle to a temperature that the user is more comfortable with. The present application starts the function of remotely starting the air conditioning heating before the user gets on the vehicle, which can greatly reduce the user's discomfort. At the same time, in the cold winter, the temperature inside the vehicle is equivalent to the ambient temperature because the vehicle is parked outdoors for a long time. At this time, if the user directly enters the vehicle, by adopting a certain heating optimization algorithm, the temperature inside the vehicle can be rapidly increased. After the user gets on the vehicle and powers on, relevant strategies to prevent cold wind blowing are implemented, thereby achieving energy saving and improving the user's comfort, which greatly improves the user's experience.

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

[0065] Specifically, if Figure 1 As shown, the air conditioning anti-cold wind control system of the present application includes an air conditioning controller AC (Air Conditioning Controller), an outdoor temperature sensor TAB (Temperature Ambient Sensor), an air conditioning system HVAC (Heating, Ventilation, and Air Conditioning), a gateway CGW (CAN Gateway), an engine controller EMS (Engine Management System) / power domain controller PDC (Power Domain Controller) / vehicle controller VCU (Vehicle Control Unit), a heater PTC (Positive Temperature Coefficient), a remote information controller TBOX (Telematics Box) and a mobile terminal.

[0066] Among them, the air-conditioning controller AC is used to perform the remote air-conditioning and heating function of the vehicle based on the comprehensive judgment and processing of the received external information; the outdoor temperature sensor TAB is used to collect the outdoor temperature value; the air-conditioning system HVAC includes the air-conditioning box, compressor, condenser, expansion valve, HVAC, etc., the heater PTC is used to heat the air or water to provide a heat source for the vehicle, and the gateway CGW is used to route messages and signals between multiple CANs; the engine controller EMS / power domain controller PDC / vehicle controller VCU is responsible for the power-on of the vehicle and the start of the engine; the remote information controller TBOX is responsible for the issuance and reading back of user interaction instructions; the mobile terminal is a mobile device, such as a mobile phone or a car entertainment system; the heater PTC is used to execute the AC heating command and heat the air or water.

[0067] Furthermore, TAB transmits the collected ambient temperature to TMC (Traffic Message Channel) through hard wire, and TMC transmits the ambient temperature to CAN through CAN1. After receiving the ambient temperature, TBOX determines the ambient temperature. When the ambient temperature is low, TBOX sends the confirmation information to the mobile terminal through wireless, asking the user whether to turn on the remote air conditioning and heating. The user agrees and presets the start time and running time and other information, and then transmits the signal to TBOX through the wireless network. TBOX publishes the user's consent and preset start time and running time and other information to the network through CAN2. At this time, after TMC receives the command, when the preset start time arrives, it sends a request for power-on command through CAN1. After EMS / PDC / VCU receives the command on CAN3, EMS / PDC / VCU powers on the whole vehicle and reports the power-on status to the CAN network through CAN3. TCM (Transmission Control Module) Module) integrates the hard-wire information of CAN network, TAB, air-conditioning system, etc., and executes remote heating or local cold wind protection foot-blowing strategy according to the preset logic strategy. After the remote heating is completed, the user is notified through CAN1 that the remote heating is completed. CGW routes the messages and signals of CAN1, CAN2, and CAN3 according to the routing table to realize the interaction between multiple CANs.

[0068] The following introduces an air conditioner cold wind prevention control method using the above-mentioned air conditioner cold wind prevention control system.

[0069] Specifically, Figure 2 A flow chart of an air conditioning cold wind prevention control method provided in an embodiment of the present application.

[0070] like Figure 2 As shown, the air conditioner cold wind prevention 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 embodiment of the present 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 demand, the current engine water temperature of the vehicle is obtained, and the engine target speed and target cold wind protection strategy are determined according to the current engine water temperature.

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

[0076] The preset temperature may be a temperature pre-set by a person skilled in the art according to actual conditions, such as 5° C., and is not specifically limited here.

[0077] Optionally, the embodiment of the present application can obtain the current engine water temperature through a temperature sensor, which is not specifically limited here.

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

[0079] The preset mobile terminal may be a mobile phone or other handheld communication device with a radio shortwave communication function, which is not specifically limited here.

[0080] Specifically, when the user is not in the vehicle, that is, when remote air conditioning and heating are required, if the current ambient temperature is lower than the preset temperature, an air conditioning and heating request instruction is sent to the preset mobile terminal to request to start the remote air conditioning and heating function. If the user confirms and agrees to start the remote air conditioning and heating function, that is, the confirmation instruction sent by the user based on the air conditioning and heating request instruction is received, it is determined that the vehicle has a heating demand. In addition, if the current ambient temperature is greater than or equal to the preset temperature, the vehicle does not have a heating demand.

[0081] Furthermore, in some embodiments, after determining that the current ambient temperature is lower than the preset temperature, it also 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 when the current vehicle air conditioner is in automatic mode, determining 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 current vehicle, the vehicle dashboard can be used to determine whether the current vehicle has received an ignition (IG, IGnition) command. If the current vehicle has received an ignition command, the air conditioning control system further determines whether the current vehicle air conditioner is in automatic mode. If the current vehicle air conditioner is in automatic mode, it is determined that the current vehicle has a heating demand. On the contrary, if the current vehicle air conditioner is not in automatic mode, it is determined that the current vehicle has no heating demand. At this time, the current vehicle air conditioner blows air according to the user's setting.

[0083] Furthermore, if the current vehicle has a heating demand, the speed of the vehicle's engine is controlled to be adjusted to the first target speed, and the current vehicle air conditioner is controlled to operate based on the first target cold wind prevention strategy, and a voice reminder is given to the user when the first target cold wind prevention strategy is entered for the first time, such as "Currently in cold wind prevention mode". Exemplarily, when the current vehicle is a non-electric vehicle, the first target speed of the embodiment of the present application can be an increase of 2000rpm in the engine speed, and the first target cold wind prevention strategy can be a window blowing mode, an air conditioning air volume of 0 gear, and an internal circulation mode; when the current vehicle is an electric vehicle, the first target cold wind prevention strategy of the embodiment of the present application can be a window blowing mode, an air conditioning air volume of 0 gear, and an internal circulation mode.

[0084] Furthermore, in some embodiments, the engine target speed and the target cold wind protection strategy are determined according to the current engine water temperature, including: determining the user required temperature based on the confirmation instruction; calculating the temperature difference between the current engine water temperature and the user required temperature, and determining the engine target speed, the current vehicle air conditioner target air volume, the target blowing mode and the target circulation mode according to the temperature range in which the temperature difference lies.

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

[0086] Specifically, the embodiment of the present application can determine the user required temperature based on the confirmation instruction, and calculate the difference between the current engine water temperature and the user required temperature, determine whether the difference between the current engine water temperature and the user required temperature is greater than or equal to the first preset threshold, and whether the difference between the current engine water temperature and the user required temperature is less than the second preset threshold. If the difference between the current engine water temperature and the user required temperature is greater than or equal to the first preset threshold, and the difference between the current engine water temperature and the user required temperature is less than the second preset threshold, then the second target cold wind prevention strategy is used as the target operation mode, the engine speed of the vehicle is controlled to be adjusted to the second target speed, and the current vehicle air conditioner is controlled to operate based on the second target cold wind prevention strategy. Among them, the second target speed is less than the first target speed, and the air volume of the second target cold wind prevention strategy is greater than the air volume of the first target cold wind prevention strategy. Exemplarily, the second target speed of the embodiment of the present application can be an engine speed increase of 1500rpm, and the second target cold wind prevention strategy can be a window blowing mode, an air conditioning air volume of 8 gears, and an external circulation mode, which are not specifically limited here.

[0087] Furthermore, if the difference between the current engine water temperature and the user required temperature is less than the third preset threshold, the third target cold wind prevention strategy is used as the target operation mode, the speed of the vehicle engine is controlled to be adjusted to the third target speed, and the current vehicle air conditioner is controlled to operate based on the third target cold wind prevention strategy, wherein the third preset threshold is greater than the second preset threshold, and the third target speed is less than the second target speed. Exemplarily, the third target speed of the embodiment of the present application can be an increase of 500rpm in the engine speed, and the third target cold wind prevention strategy of the embodiment of the present application can be a window blowing mode, an air conditioning air volume of 8 gears, and an external circulation mode, which are not specifically limited here.

[0088] Furthermore, if the difference between the current engine water temperature and the user required temperature is greater than or equal to the third preset threshold, the fourth target cold wind prevention strategy is used as the target operation mode, the speed of the vehicle engine is controlled to be adjusted to the fourth target speed, and the current vehicle air conditioner is controlled to operate based on the fourth target cold wind prevention strategy, and when the operating time of the current vehicle air conditioner reaches the heating time corresponding to the user required temperature, the user is notified of the completion of remote heating. Exemplarily, the fourth target speed of the embodiment of the present application can be to cancel the request for engine speed increase (i.e., the engine returns to normal speed), and the fourth target cold wind prevention strategy can be window blowing mode, air conditioning air volume is 8 gears, and external circulation mode, which is not specifically limited here.

[0089] Therefore, according to the control method of remote air conditioning heating of the embodiment of the present application, the engine speed and air volume are gradually adjusted according to the difference between the current engine water temperature and the user's required temperature. For example, in the early stage of remote heating, when the difference between the current engine water temperature and the user's required temperature is large, a higher engine speed is requested, thereby improving the operating efficiency of the engine to quickly increase the temperature inside the vehicle; when the temperature difference gradually decreases, the engine speed is gradually reduced to maintain a stable temperature inside the vehicle. When the temperature difference reaches a predetermined temperature, the engine speed increase is canceled and the normal speed is restored, thereby achieving further energy saving.

[0090] In order to facilitate those skilled in the art to more clearly and intuitively understand the remote air conditioning heating control method of the present application, the following is combined with Figure 3 An exemplary detailed description is given.

[0091] S301, start.

[0092] S302, determine whether the ambient temperature is less than 5°C, if yes, execute S303, otherwise, execute S315.

[0093] S303, sending 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 operation time.

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

[0096] S306, execute window blowing mode, air volume 0, internal circulation, and request the engine speed to increase by 2000 rpm.

[0097] S307, determining whether the difference between the engine water temperature TW and the user required temperature Tset is less than the first preset threshold value T1, if yes, executing S306, otherwise, executing S308.

[0098] S308, execute window blowing mode, 8th air volume, external circulation, and request the engine speed to increase by 1500rmp.

[0099] S309, determining whether the difference between the engine water temperature TW and the user required temperature Tset is less than a second preset threshold value T2, if yes, executing S308, otherwise, executing S310.

[0100] S310, execute window blowing mode, 8th air volume, external circulation, and request the engine speed to increase by 500 rpm.

[0101] S311, determine whether the difference between the engine water 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, execute the window blowing mode, 8th air volume, external circulation, cancel the request for engine speed increase, and the engine returns to normal speed.

[0103] S313, running time is up.

[0104] S314, notifying the user that the remote heating of the air conditioner is completed.

[0105] S315, end.

[0106] Therefore, the present invention can judge the ambient temperature. When the temperature is low, the user can use remote heating to increase the temperature in the car in advance for the user, so that a relatively comfortable temperature can be reached when the user gets in the car, thereby improving the user's comfort and saving the user's time. Under remote heating, the time required for remote heating is confirmed by judging the user's required temperature, and the user is provided with a choice. At the same time, when remotely controlling heating, the difference between the engine water temperature and the user's required temperature is used to request a larger engine speed increase, and the window blowing mode is controlled to close the air volume. The internal circulation mode rapidly increases the engine water temperature. When it increases to a certain level, the speed at which the engine speed is requested to increase becomes smaller, the window blowing mode is used, the air volume is maximized, and it is converted to external circulation at the same time to prevent the car windows from fogging, until the temperature in the car and the water temperature differ to a certain value, and the engine speed returns to normal speed.

[0107] Further, in some embodiments, determining the engine target speed and the target cold wind protection strategy based on the current engine water temperature also includes: determining the current temperature range of the current engine water temperature; determining the engine target speed, the current vehicle air conditioner target air volume, the target blowing mode and the target circulation mode based on the current temperature range.

[0108] In some embodiments, the current target air volume of the vehicle air conditioner is positively correlated with the current temperature range.

[0109] Specifically, it is determined whether the current engine water temperature is greater than or equal to the fourth preset threshold value, and whether the current engine water temperature is less than the fifth preset threshold value. If the current engine water temperature is less than the fourth preset threshold value, the current vehicle air conditioner is controlled to continue to operate based on the first target cold wind prevention strategy. If the current engine water temperature is greater than or equal to the fourth preset threshold value, and the current engine water temperature is less than the fifth preset threshold value, the speed of the vehicle's engine is controlled to be adjusted to the fifth target speed, and the fifth target cold wind prevention strategy is controlled as the target operation mode, and the current vehicle air conditioner is controlled to operate based on the fifth target cold wind prevention strategy. Exemplarily, the fifth target speed of the embodiment of the present application can be an increase of 2000rmp in engine speed, and the fifth target cold wind prevention strategy can be a window blowing mode, an external circulation mode, and an air conditioning air volume of 1 gear, and when the fifth target cold wind prevention strategy is first entered, the user is reminded that the cold wind prevention strategy is currently in the window blowing mode.

[0110] Further, it is determined whether the current engine water temperature is greater than or equal to the fifth preset threshold value, and whether the current engine water temperature is less than the sixth preset threshold value, wherein the air volume of the fifth target cold wind prevention strategy is greater than the air volume of the first target cold wind prevention strategy; if the current engine water temperature is greater than or equal to the fifth preset threshold value, and the current engine water temperature is less than the sixth preset threshold value, then the speed of the engine of the vehicle is controlled to be adjusted to the sixth target speed, and the sixth target cold wind prevention strategy is used as the target operation mode, and the current vehicle air conditioner is controlled to operate based on the sixth target cold wind prevention strategy, wherein the air volume of the sixth target cold wind prevention strategy is greater than the air volume of the fifth target cold wind prevention strategy. Exemplarily, the sixth target speed of the embodiment of the present application can be a mode in which the engine speed is increased by 2000rmp, and the sixth target cold wind prevention strategy can be a window blowing mode, an external circulation mode, and an air conditioning air volume of 2 gears, which are not specifically limited here.

[0111] Further, it is determined whether the current engine water temperature is less than the seventh preset threshold value. If the current engine water temperature is less than the seventh preset threshold value, the speed of the vehicle's engine is controlled to be adjusted to the seventh target speed, and the seventh target cold wind prevention strategy is used as the target operation mode, and the current vehicle air conditioner is controlled to operate based on the seventh target cold wind prevention strategy, wherein the seventh preset threshold value is greater than the sixth preset threshold value. Exemplarily, the seventh target speed of the embodiment of the present application can be an increase of 2000rmp in engine speed, and the seventh target cold wind prevention strategy can be a window blowing mode, an external circulation mode, and an air conditioning air volume of 3 gears, which are not specifically limited here.

[0112] Further, it is determined whether the current engine water temperature is greater than or equal to the seventh preset threshold value. If the current engine water temperature is greater than or equal to the seventh preset threshold value, the speed of the engine of the vehicle is controlled to be adjusted to the eighth target speed, and the eighth target cold wind prevention strategy is used as the target operation mode, and the current vehicle air conditioner is controlled to operate based on the eighth target cold wind prevention strategy, and after the current vehicle air conditioner operates based on the eighth target cold wind prevention strategy for a period of time, the current vehicle air conditioner is controlled to execute the automatic mode to blow air, and the engine speed is requested to increase the speed to a calibrated amount. Exemplarily, the eighth target speed of the embodiment of the present application can be to cancel the request for engine speed increase (i.e., the engine returns to normal speed), and the eighth target cold wind prevention strategy can be a foot blowing mode, an external circulation mode, and the air volume of the air conditioner is at the maximum gear, which is not specifically limited here.

[0113] Therefore, the air conditioning cold wind prevention control method of this application can quickly increase the engine water temperature by increasing the engine speed and using a smaller air conditioning air volume at the initial stage of the air conditioning cold wind prevention control, ensuring that the user will not be affected by the cold wind when getting on the car, thereby improving the user's comfort. In addition, when the engine water temperature gradually approaches the predetermined temperature, the embodiment of the application reduces the engine speed to reduce energy consumption and improve the energy efficiency of the system.

[0114] In order to facilitate those skilled in the art to more clearly and intuitively understand the air conditioning cold wind control method of the current vehicle of the present application which is a non-electric vehicle, the following is combined with Figure 4 An exemplary detailed description is given.

[0115] S401, start.

[0116] S402, IG is powered on.

[0117] S403, determine whether the air conditioner is in AUTO mode, if yes, execute S405, otherwise, execute S404.

[0118] S404, air is discharged according to the user's setting.

[0119] S405, determine whether the ambient temperature is less than 5°C, if yes, execute S407, otherwise, execute S406.

[0120] S406, does not enter cold wind protection control.

[0121] S407, enter the cold wind prevention control: window blowing mode, air volume 0 gear, internal circulation, request the engine speed to increase by 2000rpm, and voice remind the user (first time entry).

[0122] S408, determining whether the engine water temperature TW is less than a fourth preset threshold value T4, if yes, executing S407, otherwise, executing S409.

[0123] S409, execute window blowing mode, external circulation, air volume level 1, request the engine speed to increase by 2000rpm, and remind the user of the cold wind prevention strategy: window blowing mode (first entry).

[0124] S410, determining whether the engine water temperature TW is less than a fifth preset threshold value T5, if yes, executing S409, otherwise, executing S413.

[0125] S411, execute window blowing mode, external circulation, wind speed 2, and request the engine speed to increase by 2000rpm.

[0126] S412, determining whether the engine water temperature TW is less than a sixth preset threshold value T6, if yes, executing S411, otherwise, executing S413.

[0127] S413, execute window blowing mode, external circulation, 3 wind speeds, and request the engine speed to increase by 2000rpm.

[0128] S414, determining whether the engine water temperature TW is greater than a seventh preset threshold value T7, if yes, executing S415, otherwise, executing S413.

[0129] S415, executing the foot blowing mode, external circulation, and maximum air volume, canceling the requested engine speed, and the engine returns to normal speed.

[0130] S416, after a period of time.

[0131] S417, AUTO mode air flow.

[0132] Therefore, this application takes into account that when the ambient temperature is low in winter, after power-on, in order to prevent cold wind from blowing your feet, when the engine water temperature is lower than a certain threshold, it enters cold wind prevention control, such as no wind, window blowing, and internal circulation, and requests the engine speed to increase by 2000r, and voice reminds the user that as the engine water temperature slowly rises, the internal and external circulation changes until the engine water temperature exceeds the seventh preset threshold. The embodiment of this application enters cold wind prevention control by first cooling down, then blowing on the face, but without wind. After the engine water temperature reaches the seventh preset threshold, the request for engine speed is canceled, the engine returns to normal speed, foot blowing mode, external circulation, maximum wind volume, and after a period of time, enters AUTO mode to blow air.

[0133] Furthermore, in some embodiments, after controlling the current vehicle air conditioner to operate based on the first target cold wind protection strategy, it also includes: if the current vehicle uses air-heating PTC, the target operating mode is determined according to the temperature range of the current air outlet temperature of the air-heating PTC; if the current vehicle uses water-heating PTC, the target operating mode is determined according to the temperature range of the current water outlet temperature of the water-heating PTC.

[0134] Specifically, when the current vehicle uses air-heating PTC, the current air outlet temperature of the air-heating PTC 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 the current air outlet temperature is less than or equal to the ninth preset threshold, the ninth target anti-cold wind 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 wind strategy, otherwise, the tenth target anti-cold wind 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 wind strategy, wherein the air outlet volume of the ninth target anti-cold wind strategy is greater than the air outlet volume of the first target anti-cold wind strategy, and the air outlet volume of the tenth target anti-cold wind strategy is greater than the air outlet volume of the ninth target anti-cold wind strategy.

[0135] Among them, the eighth to ninth preset thresholds may be thresholds pre-set by those skilled in the art according to actual conditions and are not specifically limited here.

[0136] Specifically, when the current vehicle uses air-heating PTC, the current air outlet temperature of the air-heating PTC is obtained through the temperature sensor, and 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 less than the eighth preset threshold, the current vehicle air conditioner is controlled to continue to operate based on the first target cold wind prevention strategy. If the current air outlet temperature is greater than or equal to the eighth preset threshold, and the current air outlet temperature is less than or equal to the ninth preset threshold, the ninth target cold wind prevention strategy is used as the target operating mode, and the current vehicle air conditioner is controlled to operate based on the ninth target cold wind prevention strategy. Exemplarily, the ninth target cold wind prevention strategy of the embodiment of the present application can be a window blowing mode, external circulation, and an air conditioning air volume mode of level 1, which is not specifically limited here.

[0137] Furthermore, if the current outlet air temperature is greater than the ninth preset threshold, the tenth target cold wind prevention strategy is used as the target operation mode, and the current vehicle air conditioner is controlled to operate based on the tenth target cold wind prevention strategy, and after the current vehicle air conditioner operates based on the tenth target cold wind prevention strategy for a period of time, the current vehicle air conditioner is controlled to perform automatic mode air outlet. Exemplarily, the tenth target cold wind prevention strategy in the embodiment of the present application can be a window blowing mode, an external circulation mode, and an air conditioning air volume mode at the maximum gear, which is not specifically limited here.

[0138] In order to facilitate those skilled in the art to more clearly and intuitively understand that the current vehicle of the present application is an electric vehicle, and the air conditioning cold wind control method using air heating PTC is described below in combination with Figure 5 An exemplary detailed description is given.

[0139] S501, start.

[0140] S502, IG is powered on.

[0141] S503, determine whether the air conditioner is in AUTO mode, if yes, execute S505, otherwise, execute S504.

[0142] S504, output air according to user settings.

[0143] S505, determine whether the ambient temperature is less than 5°C, if yes, execute S507, otherwise, execute S506.

[0144] S506, does not enter cold wind protection control.

[0145] S507, enter the cold wind protection control: window blowing mode, internal circulation, air volume 0, and voice remind the user (first time entry).

[0146] S508, determining whether the PTC air outlet temperature is less than an eighth preset threshold value T8, if yes, executing S507, otherwise, executing S509.

[0147] S509, execute window blowing mode, external circulation, wind volume level 1.

[0148] S510, determining whether the PTC air outlet temperature is less than or greater than a ninth preset threshold value T9, if yes, executing S511, otherwise, executing S509.

[0149] S511, window blowing mode, external circulation, maximum wind speed.

[0150] S512, after a period of time.

[0151] S513, AUTO mode.

[0152] Further, in some embodiments, when the current vehicle adopts water-heating PTC, the current water outlet temperature of the water-heating PTC is obtained; it is determined whether the current water outlet temperature is greater than or equal to the tenth preset threshold, and whether the current water outlet temperature is less than or equal to the eleventh preset threshold; if the current water outlet temperature is greater than or equal to the tenth preset threshold, and the current water outlet temperature is less than or equal to the eleventh preset threshold, the eleventh target anti-cold wind 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 wind strategy, otherwise, the twelfth target anti-cold wind 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 wind strategy, wherein the air outlet of the eleventh target anti-cold wind strategy is greater than the air outlet of the first target anti-cold wind strategy, and the air outlet of the twelfth target anti-cold wind strategy is greater than the air outlet of the eleventh target anti-cold wind strategy.

[0153] Among them, the tenth to eleventh preset thresholds may be thresholds pre-set by those skilled in the art according to actual conditions and are not specifically limited here.

[0154] Specifically, if the current vehicle is an electric car, then when the current vehicle uses a water-heating PTC, the current water outlet temperature of the water-heating PTC is obtained through a temperature sensor, and it is determined whether the current water outlet temperature is greater than or equal to the tenth preset threshold, and whether the current water outlet temperature is less than or equal to the eleventh preset threshold. If the current water outlet temperature is less than the tenth preset threshold, the current vehicle air conditioner is controlled to continue to operate based on the first target cold wind protection strategy. If the current water outlet temperature is greater than or equal to the tenth preset threshold, and the current water outlet temperature is less than or equal to the eleventh preset threshold, the eleventh target cold wind protection strategy is used as the target operating mode, and the current vehicle air conditioner is controlled to operate based on the eleventh target cold wind protection strategy. Exemplarily, the eleventh target cold wind protection strategy of the embodiment of the present application can be a window blowing mode, external circulation, and an air conditioning air volume mode of level 1, which is not specifically limited here.

[0155] Furthermore, if the current outlet water temperature is greater than the eleventh preset threshold, the tenth target cold wind prevention strategy is used as the target operation mode, and the current vehicle air conditioner is controlled to operate based on the tenth target cold wind prevention strategy, and after the current vehicle air conditioner operates based on the tenth target cold wind prevention strategy for a period of time, the current vehicle air conditioner is controlled to perform automatic mode air outlet. Exemplarily, the tenth target cold wind prevention strategy in the embodiment of the present application can be a window blowing mode, an external circulation mode, and an air conditioning air volume maximum gear mode, which is not specifically limited here.

[0156] In order to facilitate those skilled in the art to more clearly and intuitively understand that the current vehicle of the present application is an electric vehicle, and the air conditioning cold wind control method using water heating PTC is described below in combination with Figure 6 An exemplary detailed description is given.

[0157] S601, start.

[0158] S602, IG is powered on.

[0159] S603, determine whether the air conditioner is in AUTO mode, if yes, execute S605, otherwise, execute S604.

[0160] S604, air is discharged according to the user's setting.

[0161] S605, determine whether the ambient temperature is less than 5°C, if yes, execute S607, otherwise, execute S606.

[0162] S606, does not enter cold wind protection control.

[0163] S607, enter the cold wind protection control: window blowing mode, internal circulation, air volume 0, and voice reminder to the user (first time entry).

[0164] S608, determining whether the PTC water outlet temperature is less than a tenth preset threshold value T10, if yes, executing S607, otherwise, executing S609.

[0165] S609, execute window blowing mode, external circulation, wind volume level 1.

[0166] S610, determining whether the PTC water outlet temperature is less than or greater than the ninety-first preset threshold value T11, if so, executing S611, otherwise, executing S609.

[0167] S611, window blowing mode, external circulation, maximum wind speed.

[0168] S612, after a period of time.

[0169] S613, AUTO mode air flow.

[0170] Therefore, by monitoring the PTC air outlet / water outlet temperature, when the PTC air outlet / water outlet temperature is lower than a certain threshold, the anti-cold wind control is entered: window blowing mode, internal circulation, air volume is turned off and voice reminds the user; as the PTC air outlet / water outlet temperature increases, the window blowing mode, internal circulation, and air volume are changed to level 1, until the air outlet / water outlet temperature reaches another threshold, the window blowing mode, external circulation, and air volume are set to the maximum level; after a period of time, the air conditioner executes the AUTO mode to discharge air.

[0171] Furthermore, in some embodiments, when the air conditioning anti-cold wind control is performed based on the target anti-cold wind strategy, it also includes: obtaining the heating time corresponding to the user required temperature; judging whether the operating time of the current vehicle air conditioner reaches the heating time corresponding to the user required temperature; if the operating time of the current vehicle air conditioner reaches the heating time corresponding to the user required temperature, turning off the current vehicle air conditioner.

[0172] Specifically, the embodiment of the present application can obtain the start time of the remote air conditioning heating function and the heating time corresponding to the user's required temperature according to the confirmation instruction, so as to execute the remote air conditioning heating function when the start time of the remote air conditioning heating function is reached.

[0173] For example, the corresponding relationship between the user required temperature and the heating time corresponding to the user required temperature may be shown in Table 1:

[0174] Table 1

[0175] Tset (user required temperature) / ℃ 16 22 28 32 Heating time / min 10 15 20 30

[0176] For example, when the user demands a temperature of 16°C, the corresponding heating time is 10 minutes; when the user demands a temperature of 22°C, the corresponding heating time is 15 minutes; when the user demands a temperature of 28°C, the corresponding heating time is 20 minutes; and when the user demands a temperature of 32°C, the corresponding heating time is 30 minutes.

[0177] Assuming that the current user required temperature is 16°C, the corresponding heating time is 10 minutes. If the current car air conditioner is running for 10 minutes, it means that the temperature inside the car has reached the user required temperature, and the current car air conditioner is turned off; if the current car air conditioner is running for 5 minutes, it means that the temperature inside the car has not reached the user required temperature, and the current car air conditioner is kept on.

[0178] According to the air conditioning cold wind prevention control method proposed in the embodiment of the present application, if the current ambient temperature is lower than the preset temperature, then when the vehicle has a heating demand, the current engine water temperature of the vehicle is obtained, and the engine target speed and target cold wind prevention strategy are determined according to the current engine water temperature; the engine speed of the vehicle is adjusted to the target speed, and the air conditioning cold wind prevention control is performed based on the target cold wind prevention strategy. In this way, the problem of the lack of refined control in the background technology leading to a reduced user experience is solved. The remote heating function is performed in advance before the user gets in the car to increase the temperature inside the car. At the same time, the refined cold wind prevention strategy after the user powers on improves the user experience and saves the user's precious time.

[0179] Next, the air conditioning cold wind prevention control device proposed according to the embodiment of the present application is described with reference to the accompanying drawings.

[0180] Figure 7 It is a block diagram of an air-conditioning cold wind prevention control device according to an embodiment of the present application.

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

[0182] Among them, the acquisition module 100 is used to obtain the current ambient temperature; the determination module 200 is used to obtain the current engine water temperature of the vehicle when the current ambient temperature is lower than the preset temperature and the vehicle has a heating demand, and determine the engine target speed and the target cold wind protection strategy according to the current engine water temperature; the control module 300 is used to adjust the engine speed of the vehicle to the target speed, and perform air conditioning cold wind protection control based on the target cold wind protection strategy.

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

[0184] Furthermore, in some embodiments, the determination module 200 is used to: determine the user required temperature based on the confirmation instruction; calculate the temperature difference between the current engine water temperature and the user required temperature, and determine the engine target speed, the current vehicle air conditioner target air volume, the target blowing mode and the target circulation mode according to the temperature range in which the temperature difference lies.

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

[0186] Furthermore, in some embodiments, when the air conditioning anti-cold wind control is performed based on the target anti-cold wind strategy, the control module 300 is also used to: obtain the heating time corresponding to the user required temperature; determine whether the operating time of the current vehicle air conditioner reaches the heating time corresponding to the user required temperature; if the operating time of the current vehicle air conditioner reaches the heating time corresponding to the user 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 determination 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, determine that the vehicle has a heating demand.

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

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

[0190] It should be noted that the aforementioned explanation of the embodiment of the air conditioner cold wind prevention control method is also applicable to the air conditioner cold wind prevention control device of this embodiment, and will not be repeated here.

[0191] According to the air conditioning cold wind prevention control device proposed in the embodiment of the present application, if the current ambient temperature is lower than the preset temperature, then when the vehicle has a heating demand, the current engine water temperature of the vehicle is obtained, and the engine target speed and target cold wind prevention strategy are determined according to the current engine water temperature; the engine speed of the vehicle is adjusted to the target speed, and the air conditioning cold wind prevention control is performed based on the target cold wind prevention strategy. In this way, the problem of the lack of refined control in the background technology leading to a reduced user experience is solved, and through remote preheating and refined cold wind prevention control strategies, the user's comfort is improved while saving energy.

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

[0193] A memory 801 , a processor 802 , and a computer program stored in the memory 801 and executable on the processor 802 .

[0194] When the processor 802 executes the program, the air conditioning cold wind prevention control method provided in the above embodiment is implemented.

[0195] Furthermore, the vehicle also includes:

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

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

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

[0199] If the memory 801, the processor 802 and the communication interface 803 are implemented independently, the communication interface 803, the memory 801 and the processor 802 can be connected to each other through a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 8 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

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

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

[0202] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

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

[0204] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0205] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or N wirings (electronic devices), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0206] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0207] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0208] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0209] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An air conditioning cold wind prevention control method, characterized in that: The following steps are involved: Get the current ambient temperature; If the current ambient temperature is lower than the preset temperature, when the vehicle has a heating demand, the current engine water temperature of the vehicle is obtained, and the engine target speed and target cold wind prevention strategy are determined according to the current engine water temperature; The speed of the engine of the vehicle is adjusted to the target speed, and air conditioning cold wind prevention control is performed based on the target cold wind prevention strategy.

2. The method according to claim 1, characterized in that After determining that the current ambient temperature is lower than the preset temperature, the method further includes: Sending an air conditioning heating request instruction to a preset mobile terminal, and determining whether a confirmation instruction sent by a user based on the air conditioning heating request instruction is received; If a confirmation instruction sent by the user based on the air-conditioning heating request instruction is received, it is determined that the vehicle has the heating demand.

3. The method according to claim 2, characterized in that The determining of the target engine speed and the target cold wind prevention strategy according to the current engine water temperature includes: Based on the confirmation instruction, determining the user required temperature; The temperature difference between the current engine water temperature and the user required temperature is calculated, and the engine target speed, the target air volume, the target blowing mode and the target circulation mode of the current vehicle air conditioner are determined according to the temperature range in which the temperature difference lies.

4. The method according to claim 3, characterized in that: The target engine speed is negatively correlated with the current temperature range.

5. The method according to claim 3, characterized in that: When the air conditioner cold wind prevention control is performed based on the target cold wind prevention strategy, it also includes: Obtaining the heating time corresponding to the user required temperature; Determine whether the current operating time of the vehicle air conditioner reaches the heating time corresponding to the user's required temperature; If the operating time of the current vehicle air conditioner reaches the heating time corresponding to the user required temperature, the current vehicle air conditioner is turned off.

6. The method according to claim 1, characterized in that After determining that the current ambient temperature is lower than the preset temperature, the method further includes: Determine whether the current vehicle has received an ignition power-on command; If the current vehicle receives the ignition power-on instruction, then when the current vehicle air conditioner is in automatic mode, it is determined that the vehicle has the heating demand.

7. The method according to claim 6, characterized in that The determining of the target engine speed and the target cold wind prevention strategy according to the current engine water temperature includes: Determining a current temperature range of the current engine water temperature; The target engine speed, the target air volume, the target blowing mode and the target circulation mode of the current vehicle air conditioner are determined according to the current temperature range.

8. The method according to claim 7, characterized in that The current target air volume of the vehicle air conditioner is positively correlated with the current temperature range.

9. An air conditioner cold wind prevention control device, characterized in that: include: Acquisition module, used to obtain the current ambient temperature; A determination module, configured to obtain a current engine water temperature of the vehicle when the current ambient temperature is lower than a preset temperature and the vehicle has a heating demand, and determine an engine target speed and a target cold wind prevention strategy according to the current engine water temperature; A control module is used to adjust the speed of the engine of the vehicle to the target speed and perform air conditioning cold wind prevention control based on the target cold wind prevention strategy.

10. A vehicle, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the air conditioning cold wind prevention control method as described in any one of claims 1 to 8.

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