Air conditioner fresh air control method, air conditioner, control system and vehicle

Abstract

The application provides an air conditioner fresh air control method, an air conditioner, a control system and a vehicle. The air conditioner fresh air control method comprises the following steps: acquiring a vehicle external temperature when an air conditioner is in a heating mode; controlling an operation mode of the air conditioner according to a comparison result of the vehicle external temperature and a set temperature; wherein when the vehicle external temperature is less than the set temperature, the air conditioner is controlled to operate in a full external circulation mode; and when the vehicle external temperature is greater than or equal to the set temperature, the air conditioner is controlled to operate in a full internal circulation mode or an internal circulation and external circulation combined mode. Through the above setting, the damper opening degree of the air conditioner internal circulation is adjusted according to the environment in which the vehicle travels, the risk of the front windshield fogging is reduced, the safety during the vehicle driving process is beneficial, meanwhile, the energy consumption of the air conditioner is reduced, and the vehicle cruising range is beneficial.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicle air conditioners, and in particular to an air conditioner fresh air control method, an air conditioner, a control system and a vehicle. BACKGROUND

[0002] During winter driving, the air conditioner adopts a heating mode, and the breathing of people in the vehicle increases the humidity in the vehicle. If full internal circulation is adopted, the inner side of the front windshield will obviously fog, affecting safe driving. In order to avoid the inner side of the front windshield from fogging, the vehicle generally adopts a full external circulation mode to send dry air from the outside to the vehicle to reduce the risk of glass fogging. However, at the same time, the full external circulation mode will result in a large cold load and high PTC (Positive Temperature Coefficient Thermistor) heating energy consumption, reducing the vehicle's range. SUMMARY

[0003] The present application provides an air conditioner fresh air control method, an air conditioner control system and a vehicle for reducing air conditioner energy consumption and reducing the risk of the inner side of the front windshield fogging.

[0004] In a first aspect, the present application provides an air conditioner fresh air control method, comprising:

[0005] obtaining a vehicle external temperature when the air conditioner is in a heating mode;

[0006] controlling the operation mode of the air conditioner according to the comparison result of the vehicle external temperature and a set temperature;

[0007] wherein when the vehicle external temperature is less than the set temperature, the air conditioner is controlled to operate in a full external circulation mode;

[0008] when the vehicle external temperature is greater than or equal to the set temperature, the air conditioner is controlled to operate in a full internal circulation mode or in a mode combining internal circulation and external circulation.

[0009] When the vehicle external temperature is low, the breathing of people in the vehicle increases the humidity in the vehicle, and at this time the risk of the inner side of the front windshield fogging is high. When the vehicle external temperature is less than the set temperature, the air conditioner is controlled to operate in a full external circulation mode, dry air from the outside environment is introduced, thereby reducing the risk of the inner side of the windshield fogging. When the vehicle external temperature is greater than or equal to the set temperature, the risk of the inner side of the windshield fogging is reduced compared to when the outside temperature is low, and at this time the air conditioner is correspondingly controlled to operate in a full internal circulation mode or in a mode combining internal circulation and external circulation, which is beneficial to reducing the energy consumption of the air conditioner and is beneficial to the range of the vehicle.

[0010] Optionally, the control of the air conditioner to start the full external circulation mode comprises: controlling the air conditioner to operate in the full external circulation mode for a set time length.

[0011] The control of the air conditioner to run in the full-external circulation mode for a set time length further comprises:

[0012] The control of the air conditioner to run in the full-internal circulation mode or in the internal circulation and external circulation combined mode.

[0013] Optionally, the control of the air conditioner to run in the full-internal circulation mode or in the internal circulation and external circulation combined mode comprises:

[0014] Obtaining a vehicle operation parameter, and determining an opening value of an internal circulation damper of the air conditioner according to the vehicle operation parameter;

[0015] Adjusting the internal circulation damper of the air conditioner according to the opening value.

[0016] Optionally, the vehicle operation parameter comprises multiple types.

[0017] The obtaining of the vehicle operation parameter and the determination of the opening value of the internal circulation damper of the air conditioner according to the vehicle operation parameter comprises:

[0018] Obtaining at least one type of vehicle operation parameter as an actual measurement parameter.

[0019] Determining the opening value according to the actual measurement parameter.

[0020] Optionally, the multiple types comprise a first type and at least one other type, and the priority of adjusting the opening value of the internal circulation damper of the air conditioner according to the vehicle operation parameter of the first type is the highest.

[0021] The obtaining of at least one type of vehicle operation parameter as an actual measurement parameter comprises: obtaining at least one vehicle operation parameter including the first type as the actual measurement parameter.

[0022] Optionally, when the actual measurement parameter comprises one vehicle operation parameter of the first type, the determination of the opening value according to the actual measurement parameter comprises:

[0023] Determining the opening value corresponding to the currently obtained vehicle operation parameter of the first type according to a mapping relationship between the vehicle operation parameter of the first type and the opening value of the internal circulation damper of the air conditioner, so as to adjust the internal circulation damper of the air conditioner.

[0024] Optionally, when the actual measurement parameter comprises at least two vehicle operation parameters including the vehicle operation parameter of the first type, the determination of the opening value according to the actual measurement parameter comprises:

[0025] According to a mapping relationship between the first type of vehicle operating parameter and the opening value of the inner circulation air door of the air conditioner, an opening value corresponding to the currently acquired first type of vehicle operating parameter is determined as a base value;

[0026] According to a mapping relationship between the other type of vehicle operating parameter and the compensation amount of the opening value of the inner circulation air door of the air conditioner, a compensation amount corresponding to the currently acquired other type of vehicle operating parameter is determined;

[0027] According to a sum of the base value and the compensation amount, the opening value is determined.

[0028] Optionally, the mapping relationship between the first type of vehicle operating parameter and the opening value of the inner circulation air door of the air conditioner is obtained through a first relationship establishing method, and the first relationship establishing method comprises:

[0029] The opening value of the inner circulation air door of the air conditioner corresponding to the first type of vehicle operating parameter in different numerical values is determined.

[0030] The mapping relationship is formed by establishing each numerical value of the first type of vehicle operating parameter and the corresponding opening value.

[0031] Optionally, the mapping relationship between the other type of vehicle operating parameter and the compensation amount of the opening value of the inner circulation air door of the air conditioner is obtained through a second relationship establishing method, and the second relationship establishing method comprises:

[0032] The compensation amount of the opening value of the inner circulation air door of the air conditioner corresponding to each numerical value of each other type of vehicle operating parameter is determined.

[0033] The mapping relationship is formed by establishing each numerical value of each other type of vehicle operating parameter and the corresponding compensation amount.

[0034] Optionally, the first type of vehicle operating parameter comprises a vehicle external temperature; and the other type of vehicle operating parameter comprises a vehicle driving speed and a vehicle air conditioner air volume.

[0035] In a second aspect, the present application provides an air conditioner configured to execute the air conditioner fresh air control method of the first aspect.

[0036] When the temperature outside the vehicle is less than a set temperature, the air conditioner is controlled to operate in a full-external-circulation mode to introduce dry air from the outside environment, thereby reducing the risk of fogging on the inside of the windshield. When the temperature outside the vehicle is greater than or equal to the set temperature, the risk of fogging on the inside of the windshield is reduced compared to when the outside temperature is low, and the air conditioner is correspondingly controlled to operate in a full-internal-circulation mode or in a mode combining internal circulation and external circulation, thereby reducing the energy consumption of the air conditioner. Through the above arrangement, the air conditioner can be applied to heating in a low-temperature environment, and the safety during vehicle driving is improved. In addition, the above arrangement does not require a fogging sensor, reduces the energy consumption of the air conditioner during heating in a low-temperature environment, and improves the cruising range of the vehicle.

[0037] In a third aspect, the present application provides a control system configured to perform the air conditioner fresh air control method of the first aspect.

[0038] Through the above arrangement, the fogging sensor is not required, the number of sensing elements required by the control system is reduced, and the structure of the control system is simplified. In addition, the air conditioner can be applied to heating in a low-temperature environment, and the safety during vehicle driving is improved. In addition, the above arrangement reduces the energy consumption of the air conditioner during heating in a low-temperature environment, and improves the cruising range of the vehicle.

[0039] In a fourth aspect, the present application provides a vehicle comprising: the air conditioner of the second aspect; or the air conditioner and the control system of the third aspect, the control system being electrically connected to the air conditioner.

[0040] Through the above arrangement, the fogging sensor is not required, the number of sensing elements provided on the vehicle is reduced, and the structure of the vehicle is simplified. In addition, the risk of fogging of the air conditioner of the vehicle during heating in a low-temperature environment is reduced, and the safety during vehicle driving is improved. In addition, the above arrangement reduces the energy consumption of the air conditioner during heating in a low-temperature environment, and improves the cruising range of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0041] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present disclosure and serve to explain the principles of the present disclosure together with the specification.

[0042] Figure 1 FIG. 1 shows a schematic diagram of one embodiment of the air conditioner fresh air control method of the present application.

[0043] Figure 2 FIG. 2 shows a schematic diagram of another embodiment of the air conditioner fresh air control method of the present application.

[0044] Figure 3 FIG. 3 shows a schematic diagram of yet another embodiment of the air conditioner fresh air control method of the present application.

[0045] Figure 4Fig. 6 shows a schematic diagram of still another embodiment of the air conditioner fresh air control method of the present application.

[0046] Figure 5 Fig. 6 shows a schematic diagram of still another embodiment of the air conditioner fresh air control method of the present application.

[0047] Figure 6 Fig. 6 shows a schematic diagram of still another embodiment of the air conditioner fresh air control method of the present application.

[0048] Figure 7 Fig. 6 shows a schematic diagram of still another embodiment of the air conditioner fresh air control method of the present application. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments (or, the implementation manners) of the present application will be described clearly and completely in conjunction with the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated.

[0050] If the embodiments of the present application involve directional indications or positional relationships (for example, up, down, left, right, front, back, inner, outer, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships, movement conditions, etc. between components in a certain posture (as shown in the drawings); if the certain posture changes, the directional indications or positional relationships also change accordingly. In addition, the embodiments of the present application involve the terms "first", "second", etc., which are only used for convenience of description and cannot be understood as indicating or implying relative importance.

[0051] The present application provides an air conditioner fresh air control method. The tank front oil quality inspection system of the present application will be described in detail below in conjunction with the accompanying drawings. The features in the following embodiments and implementation manners can be combined with each other without conflict.

[0052] Referring to Figure 1 The present application provides an air conditioner fresh air control method, which includes:

[0053] S10, obtaining a vehicle external temperature when the air conditioner is in a heating mode;

[0054] S20, controlling an operation mode of the air conditioner according to a comparison result of the vehicle external temperature and a set temperature.

[0055] When the vehicle exterior temperature is less than the set temperature, S30, the air conditioner is controlled to run in a full-external-circulation mode; when the vehicle exterior temperature is greater than or equal to the set temperature, S40, the air conditioner is controlled to run in a full-internal-circulation mode or a combination of internal circulation and external circulation. The full-external-circulation mode refers to the air completely introduced from the outside of the vehicle. The full-internal-circulation mode refers to the air in the vehicle circulating in a completely closed state without exchange with the outside. The combination of internal circulation and external circulation refers to the air in the vehicle partially circulating while part of the air is introduced from the outside of the vehicle. Specifically, the set temperature can be -5°C, 0°C, 5°C, etc., and the set temperature can be adjusted according to the environment where the vehicle is running.

[0056] When the vehicle exterior temperature is low, the humidity in the vehicle increases due to the breathing of the people in the vehicle, and the risk of fogging on the inside of the front windshield glass is high. When the vehicle exterior temperature is less than the set temperature, the air conditioner is controlled to run in a full-external-circulation mode to introduce dry air from the outside environment, thereby reducing the risk of fogging on the inside of the windshield glass. When the vehicle exterior temperature is greater than or equal to the set temperature, the risk of fogging on the inside of the windshield glass is lower than when the outside temperature is low, and the air conditioner is correspondingly controlled to run in a full-internal-circulation mode or a combination of internal circulation and external circulation, which is beneficial to reducing the energy consumption of the air conditioner and the cruising range of the vehicle.

[0057] Referring to Figure 2 As shown in the figure, the step S30 of controlling the air conditioner to start the full-external-circulation mode includes:

[0058] S31, control the air conditioner to run in a full-external-circulation mode for a set time. After S31, the control method further includes: controlling the air conditioner to run in a full-internal-circulation mode or a combination of internal circulation and external circulation, that is, executing S40.

[0059] The air conditioner is controlled to run in a full-internal-circulation mode or a combination of internal circulation and external circulation. Specifically, the set time can be 5 minutes, 10 minutes, 15 minutes, etc., and the set time can be adjusted according to the environment where the vehicle is running.

[0060] Through the above settings, when the vehicle exterior temperature is less than the set temperature, the air conditioner is controlled to run in a full-external-circulation mode to introduce dry air from the outside environment, reduce the humidity in the vehicle, and thereby reduce the risk of fogging on the inside of the windshield glass; after the air conditioner runs in a full-external-circulation mode for a set time, the air conditioner is controlled to run in a full-internal-circulation mode or a combination of internal circulation and external circulation, which reduces the energy consumption of the air conditioner and is beneficial to the cruising range of the vehicle.

[0061] Referring to Figures 1-3As shown, in some optional embodiments, the step S40 of controlling the air conditioner to operate in the full inner circulation mode or operate in the combined mode of the inner circulation and the outer circulation comprises:

[0062] S41, obtaining a vehicle operating parameter, and determining an opening degree value of the inner circulation damper of the air conditioner according to the vehicle operating parameter; wherein the opening degree value can be understood as the opening degree of the inner circulation damper of the air conditioner.

[0063] S42, adjusting the inner circulation damper of the air conditioner according to the opening degree value.

[0064] Through the above setting, the opening degree of the inner circulation damper is adjusted according to the environment where the vehicle is running, so as to adjust the amount of air circulating in the vehicle and the amount of air introduced from the outside of the vehicle, thereby reducing the risk of fogging on the inner side of the front windshield while reducing the energy consumption of the air conditioner.

[0065] In the embodiment, the vehicle operating parameter includes multiple types;

[0066] Referring to Figure 4 As shown, the step S41 of obtaining a vehicle operating parameter and determining an opening degree value of the inner circulation damper of the air conditioner according to the vehicle operating parameter comprises:

[0067] S411, obtaining at least one type of vehicle operating parameter as an actual measurement parameter;

[0068] S412, determining the opening degree value according to the actual measurement parameter.

[0069] Specifically, the type of vehicle operating parameter can be various, for example, the vehicle exterior temperature, the vehicle driving speed, the air volume of the vehicle air conditioner, etc. The opening degree value can be determined according to a single vehicle operating parameter, for example, the opening degree value is determined by the vehicle exterior temperature; the opening degree value is determined by the vehicle driving speed; the opening degree value is determined by the air volume of the air conditioner, etc. The opening degree value can also be determined by multiple vehicle operating parameters, for example, the opening degree value is determined by the vehicle exterior temperature and the vehicle driving speed; the opening degree value is determined by the vehicle exterior temperature and the air volume of the vehicle air conditioner; the opening degree value is determined by the vehicle driving speed and the air volume of the vehicle air conditioner; the opening degree value is determined by the vehicle exterior temperature, the vehicle driving speed and the air volume of the vehicle air conditioner, etc. Through the above setting, the opening degree of the inner circulation damper is adjusted according to the running condition of the vehicle, so as to adjust the amount of air circulating in the vehicle and the amount of air introduced from the outside of the vehicle, thereby reducing the risk of fogging on the inner side of the front windshield while reducing the energy consumption of the air conditioner.

[0070] In some optional embodiments, the multiple types of vehicle operating parameters can include a first type and at least one other type; wherein the priority of adjusting the opening degree value of the inner circulation damper of the air conditioner according to the vehicle operating parameter of the first type is the highest;

[0071] The step S411 of obtaining at least one type of vehicle operating parameter as an actual measurement parameter includes: obtaining at least one type of vehicle operating parameter including the first type as an actual measurement parameter. It can be understood that the actual measurement parameter can only include one type of vehicle operating parameter of the first type. Alternatively, the actual measurement parameter can include one type of vehicle operating parameter of the first type and any number of other types of vehicle operating parameters.

[0072] Different types of vehicle operating parameters have different effects on the fogging of the front windshield. Among them, the first type of vehicle operating parameter has the greatest effect on the fogging of the front windshield, that is, the first type of vehicle operating parameter has the greatest effect on the opening value of the inner circulating air door of the air conditioner. Therefore, when obtaining the vehicle operating parameter, the first type of vehicle operating parameter is given priority, which is conducive to further reducing the risk of fogging of the front windshield and the safety of the vehicle during driving.

[0073] When the actual measurement parameter includes one type of vehicle operating parameter of the first type, the step S412 of determining the opening value according to the actual measurement parameter includes:

[0074] According to the mapping relationship between the first type of vehicle operating parameter and the opening value of the inner circulating air door of the air conditioner, the opening value corresponding to the currently obtained first type of vehicle operating parameter is determined to adjust the inner circulating air door of the air conditioner.

[0075] When the first type of vehicle operating parameter is obtained, the opening value mapped by the first type of vehicle operating parameter is determined to adjust the opening of the inner air door. The first type of vehicle operating parameter has the greatest effect on the fogging of the front windshield, so the first type of vehicle operating parameter has the greatest effect on the opening value of the inner circulating air door of the air conditioner. Through the above setting, it is conducive to further reducing the risk of fogging of the front windshield and the safety of the vehicle during driving.

[0076] Reference Figure 5 When the actual measurement parameter includes at least two types of vehicle operating parameters including the first type, the step S412 of determining the opening value according to the actual measurement parameter includes:

[0077] S4121, according to the mapping relationship between the first type of vehicle operating parameter and the opening value of the inner circulating air door of the air conditioner, the opening value corresponding to the currently obtained first type of vehicle operating parameter is determined as a basic value;

[0078] S4122, according to the mapping relationship between the compensation amount of the other type of vehicle operating parameter and the opening value of the inner circulating air door of the air conditioner, the compensation amount corresponding to the currently obtained other type of vehicle operating parameter is determined;

[0079] S4123, determine the opening value according to the sum of the base value and the compensation amount.

[0080] When the first type of vehicle operating parameter is acquired, the opening value corresponding to the first type of vehicle operating parameter is determined as the base value, and the inner air door opening is adjusted. The first type of vehicle operating parameter has the greatest impact on the fogging of the front windshield, so the first type of vehicle operating parameter has the greatest impact on the opening value of the inner circulation air door of the air conditioner. In addition to the first type, other types of vehicle operating parameters also have an impact on the risk of fogging of the front windshield. Therefore, when adjusting the inner air door opening, other types of vehicle operating parameters need to be considered. By acquiring the compensation amount corresponding to the other types of vehicle operating parameters, the opening value is determined according to the sum of the base value and the compensation amount. Through the above setting, during the driving of the vehicle, the air conditioner inner air door opening is accurately controlled by taking into account various vehicle operating parameters, so that the air conditioner fresh air control method is suitable for complex and variable vehicle driving conditions, which is conducive to further reducing the risk of fogging of the front windshield and improving the safety of the vehicle during driving.

[0081] Reference Figure 6 In optional embodiments, the mapping relationship between the first type of vehicle operating parameter and the opening value of the inner circulation air door of the air conditioner is obtained by a first relationship establishment method, and the first relationship establishment method includes:

[0082] S51, determine the opening value of the inner circulation air door of the air conditioner corresponding to the first type of vehicle operating parameter under different values;

[0083] S52, establish a mapping relationship between each value of the first type of vehicle operating parameter and the corresponding opening value.

[0084] During the driving of the vehicle, after acquiring the first type of vehicle operating parameter, the mapping relationship between each value of the first type of vehicle operating parameter and the corresponding opening value can be used to determine the opening value corresponding to the current first type of vehicle operating parameter, thereby reducing the calculation amount of the control system after acquiring the first type of vehicle operating parameter, and facilitating the rapid adjustment of the air conditioner inner air door opening.

[0085] Reference Figure 7 In optional embodiments, the mapping relationship between the other types of vehicle operating parameters and the compensation amount of the opening value of the inner circulation air door of the air conditioner is obtained by a second relationship establishment method, and the second relationship establishment method includes:

[0086] S61, determine the compensation amount of the opening value of the inner circulation air door of the air conditioner corresponding to each other type of vehicle operating parameter under different values;

[0087] S62, mapping is established between each value of the other type of vehicle operating parameter and the corresponding compensation amount.

[0088] In the process of vehicle driving, after obtaining the other type of vehicle operating parameter, the compensation amount corresponding to the current other type of vehicle operating parameter can be determined through the mapping relationship established between each value of the other type of vehicle operating parameter and the corresponding compensation amount, thereby reducing the calculation amount of the control system after obtaining the other type of vehicle operating parameter, and facilitating the rapid adjustment of the inner air door opening degree of the air conditioner.

[0089] In other embodiments, a formula can be established for the first type of vehicle operating parameter and the other type of vehicle operating parameter, and the corresponding opening degree value can be obtained by operating the first type of vehicle and the other type of vehicle operating parameter.

[0090] In this embodiment, the first type of vehicle operating parameter includes the vehicle external temperature, and the other type of vehicle operating parameter includes the vehicle driving speed and the vehicle air conditioner air volume.

[0091] Specifically, the mapping relationship between the first type of vehicle operating parameter, i.e., the vehicle external temperature, and the corresponding opening degree value can be as shown in Table 1:

[0092]

[0093] Table 1

[0094] The mapping relationship between the other type of vehicle operating parameter, i.e., the vehicle driving speed and the vehicle air conditioner air volume, and the corresponding opening degree value can be as shown in Table 2 and Table 3:

[0095]

[0096] Table 2

[0097]

[0098] Table 3

[0099] The greater the opening degree value of the inner circulating air door, the greater the opening degree of the inner circulating air door, and the smaller the ventilation volume between the inside and the outside. When the opening degree value of the inner circulating air door is 100%, it represents that the inner circulating air door is in a fully open state, and the air conditioner is in a full inner circulating mode; on the contrary, when the opening degree value of the inner circulating air door is 0%, it represents that the inner circulating air door is in a fully closed state, and the air conditioner is in a full outer circulating mode; when the opening degree value of the inner circulating air door is 50%, it represents that the inner circulating mode and the outer circulating mode each account for half.

[0100] Below, taking the set temperature as-5℃, the set time length as 10 min, and the actual detection parameters including the vehicle exterior temperature, the vehicle driving speed, and the vehicle air conditioner air volume as examples, the air conditioner fresh air control method of the application is introduced.

[0101] Suppose that the current vehicle exterior temperature is-7℃, the vehicle exterior temperature air conditioner is first operated in the full outside circulation mode for 10 min. Then, the air conditioner is controlled to operate in the full inside circulation mode or the combined mode of inside circulation and outside circulation.

[0102] Suppose that the current vehicle exterior temperature is still-7℃, the vehicle driving speed is 30 km / h, and the vehicle air conditioner air volume is 4 gears. According to the above Table 1 to Table 3, it can be determined that the base value of the opening value of the inside circulation air door is 40%, the compensation amount of the opening value of the inside circulation air door is 2%+5%, the opening value of the inside circulation air door is 40%+2%+5%, i.e. 47%.

[0103] It should be noted that the above Table 1 to Table 3 only schematically illustrate the mapping relationship between the first type of vehicle operating parameters and the corresponding opening value and the mapping relationship between the other types of vehicle operating parameters and the corresponding compensation amount. The first type of vehicle operating parameters can also include other vehicle operating parameters, such as the vehicle exterior temperature, the difference between the vehicle exterior temperature and the vehicle interior temperature, and the like. The other types of vehicle operating parameters can also include other vehicle operating parameters, such as the vehicle interior environment humidity, the vehicle exterior environment humidity, and the like.

[0104] The application provides an air conditioner configured to perform the air conditioner fresh air control method described in the above embodiments and examples.

[0105] When the vehicle exterior temperature is less than the set temperature, the air conditioner is controlled to operate in the full outside circulation mode, dry air in the environment outside the vehicle is introduced, so as to reduce the risk of fogging on the inside of the windshield. When the vehicle exterior temperature is greater than or equal to the set temperature, the risk of fogging on the inside of the windshield is reduced compared to the low temperature outside the vehicle, at this time the air conditioner is correspondingly operated in the full inside circulation mode or the combined mode of inside circulation and outside circulation, which is beneficial to reduce the energy consumption of the air conditioner. Through the above setting, the air conditioner can be applied to heating in a low temperature environment, and is beneficial to the safety during vehicle driving, and the above setting does not need to set a fogging sensor, reduces the energy consumption of the air conditioner in the heating in a low temperature environment, and is beneficial to the cruising range of the vehicle.

[0106] The application provides a control system configured to perform the air conditioner fresh air control method described in the above embodiments and examples.

[0107] Through the above setting, the mist sensor is not needed to be arranged, the sensing elements needed by the control system are reduced, the structure of the control system is simplified, the air conditioner can be applied to heating in a low temperature environment, the safety during driving of the vehicle is favorable, the above setting reduces the energy consumption of the air conditioner during heating in a low temperature environment, and the endurance mileage of the vehicle is favorable.

[0108] The application provides a vehicle, comprising: an air conditioner; or the air conditioner and a control system, the control system being electrically connected with the air conditioner.

[0109] Through the above setting, the mist sensor is not needed to be arranged, the sensing elements needed by the control system are reduced, the structure of the control system is simplified, the air conditioner can be applied to heating in a low temperature environment, the safety during driving of the vehicle is favorable, the above setting reduces the energy consumption of the air conditioner during heating in a low temperature environment, and the endurance mileage of the vehicle is favorable.

[0110] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of the application is not limited to the precise structures described in the above embodiments and shown in the drawings; any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the scope of protection of the application.

Claims

1. A method for controlling fresh air intake in an air conditioning system, characterized in that, include: Obtain the outside temperature of the vehicle when the air conditioner is in heating mode; The operating mode of the air conditioner is controlled based on the comparison between the external temperature of the vehicle and the set temperature. Specifically, when the external temperature of the vehicle is lower than the set temperature, the air conditioner is controlled to operate in full external circulation mode; When the external temperature of the vehicle is greater than or equal to the set temperature, the air conditioner is controlled to operate in full internal circulation mode or in a combination of internal and external circulation mode. The control of the air conditioner to operate in full internal circulation mode or in a combination of internal and external circulation modes includes: Obtain vehicle operating parameters, and determine the opening value of the internal circulation damper for adjusting the air conditioner based on the vehicle operating parameters; The vehicle operating parameters include multiple types; the multiple types include a first type and at least one other type; among them, adjusting the opening value of the air conditioner's internal circulation damper according to the vehicle operating parameters of the first type has the highest priority; The step of acquiring vehicle operating parameters and determining the opening value of the air conditioning recirculation damper based on the vehicle operating parameters includes: Acquire at least one vehicle operating parameter, including the first type, as the actual measurement parameter; The opening value is determined based on the actual measurement parameters.

2. The air conditioning fresh air control method according to claim 1, characterized in that, The control of the air conditioner to start the full external circulation mode includes: controlling the air conditioner to run in the full external circulation mode for a set duration; After controlling the air conditioner to operate in full external circulation mode for a set period of time, the method further includes: The air conditioner is controlled to operate in either a full internal circulation mode or a combination of internal and external circulation modes.

3. The air conditioning fresh air control method according to claim 1 or 2, characterized in that, The control of the air conditioner to operate in full internal circulation mode or in a combination of internal and external circulation modes includes: Adjust the internal circulation damper of the air conditioner according to the opening value.

4. The air conditioning fresh air control method according to claim 1, characterized in that, When the actual measured parameters include one of the vehicle operating parameters of the first type, determining the opening value based on the actual measured parameters includes: Based on the mapping relationship between the vehicle operating parameters of the first type and the opening value of the air conditioner's internal circulation damper, the opening value corresponding to the currently acquired vehicle operating parameters of the first type is determined, in order to adjust the air conditioner's internal circulation damper.

5. The air conditioning fresh air control method according to claim 1, characterized in that, When the actual measured parameters include at least two of the vehicle operating parameters of the first type, determining the opening value based on the actual measured parameters includes: Based on the mapping relationship between the vehicle operating parameters of the first type and the opening value of the air conditioning recirculation damper, determine the opening value corresponding to the currently acquired vehicle operating parameters of the first type as the base value; Based on the mapping relationship between the compensation amount of other types of vehicle operating parameters and the opening value of the air conditioner's internal circulation damper, determine the compensation amount corresponding to the currently acquired other types of vehicle operating parameters; The opening value is determined based on the sum of the base value and the compensation amount.

6. The air conditioning fresh air control method according to claim 4 or 5, characterized in that, The mapping relationship between the vehicle operating parameters of the first type and the opening value of the air conditioning recirculation damper is obtained through a first relationship establishment method, which includes: Determine the opening value of the air conditioning recirculation damper under different values ​​of the vehicle operating parameters for the first type; A mapping relationship is established between the values ​​of the vehicle operating parameters of the first type and their corresponding opening values.

7. The air conditioning fresh air control method according to claim 5, characterized in that, The mapping relationship between the other types of vehicle operating parameters and the compensation value of the air conditioner's internal circulation damper is obtained through a second relationship establishment method, which includes: Determine the compensation amount for the opening value of the air conditioning recirculation damper under different values ​​of the operating parameters of each other type of vehicle. A mapping relationship is established between the values ​​of each other type of vehicle operating parameter and the corresponding compensation amount.

8. The air conditioning fresh air control method according to claim 1, characterized in that, The first type of vehicle operating parameters includes the vehicle's external temperature; the other types of vehicle operating parameters include the vehicle's speed and the vehicle's air conditioning airflow.

9. An air conditioner, characterized in that, The air conditioner is configured to perform the air conditioner fresh air control method as described in any one of claims 1-8.

10. A control system, characterized in that, The control system is configured to perform the air conditioning fresh air control method as described in any one of claims 1-8.

11. A vehicle, characterized in that, include: The air conditioner as described in claim 9; or The air conditioner and the control system as described in claim 10, wherein the control system is electrically connected to the air conditioner.

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