CN110978951B - Demisting control method and device and automobile - Google Patents
Demisting control method and device and automobile Download PDFInfo
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- CN110978951B CN110978951B CN201911304216.6A CN201911304216A CN110978951B CN 110978951 B CN110978951 B CN 110978951B CN 201911304216 A CN201911304216 A CN 201911304216A CN 110978951 B CN110978951 B CN 110978951B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00785—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models by the detection of humidity or frost
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/54—Cleaning windscreens, windows or optical devices using gas, e.g. hot air
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- Air-Conditioning For Vehicles (AREA)
Abstract
The embodiment of the invention provides a demisting control method and device and an automobile, and relates to the technical field of automobiles. The defogging control method provided by the embodiment of the application comprises the steps of calculating a condensation temperature Td according to an in-vehicle temperature T and an in-vehicle relative humidity Hum; determining a fogging safety value Sm according to the difference between the condensation temperature Td and the front window glass temperature Tws; demisting according to the fogging safety value Sm. The demisting control method can demist according to actual conditions, so that various conditions can be flexibly dealt with, and the use experience of a user is improved. The defogging control device and the automobile provided by the embodiment of the application can realize the defogging control method, so that the beneficial effects are also achieved.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a demisting control method and device and an automobile.
Background
With the rapid development of automobile electronic technology, the functional complexity of vehicles is increasingly improved, the regulatory requirements on safety, environmental protection and energy conservation are increasingly strict, the requirements of comfortable, flexible and personalized customers are very different, and the control of automobile air conditioners also faces more and more severe challenges. The new energy automobile on the existing market is not adjusted flexibly enough on the front window defogging control, so that the user experience is poor.
Disclosure of Invention
The invention aims to provide a demisting control method, a demisting control device and an automobile, which can flexibly demist according to actual environment conditions and improve the use experience of users.
Embodiments of the invention may be implemented as follows:
in a first aspect, an embodiment provides a defogging control method for defogging a front window of an automobile, where the defogging control method includes:
calculating a condensation temperature Td according to the in-vehicle temperature T and the in-vehicle relative humidity Hum;
determining a fogging safety value Sm according to the difference between the condensation temperature Td and the front window glass temperature Tws;
demisting according to the fogging safety value Sm.
In an alternative embodiment, the step of calculating the condensation temperature Td according to the in-vehicle temperature T and the in-vehicle relative humidity Hum includes:
calculating the saturated vapor pressure Pb in the vehicle according to the temperature T in the vehicle;
calculating the water vapor pressure Pq in the vehicle according to the saturated water vapor pressure Pb and the relative humidity Hum in the vehicle;
and calculating the condensation temperature Td according to the water vapor pressure Pq in the vehicle.
In an alternative embodiment, the saturated vapor pressure Pb in the vehicle is calculated according to the temperature T in the vehicle, and is realized by the following formula:
ln(Pb)＝C1/T+C2+C3*T+C4*T2+C5*T3+C6l n (T), wherein C1～C6Is a constant coefficient;
calculating the water vapor pressure Pq in the vehicle according to the saturated water vapor pressure Pb and the relative humidity Hum in the vehicle, and realizing the following formula:
Pq＝Pb*Hum；
calculating the condensation temperature Td according to the water vapor pressure Pq in the vehicle, and realizing the condensation temperature Td by the following formula:
Td＝-35.957-1.8726*ln(Pq)+1.1689*(ln(Pq))2。
in an alternative embodiment, C1＝-5800.22，C2＝1.39，C3＝-0.05，C4＝0.000042，C5＝-0.000000014，C6＝6.55。
In an alternative embodiment, the step of determining the fogging safety value Sm from the difference between the condensation temperature Td and the windshield temperature Tws is implemented by the following formula:
Sm-Tws-Td-Num-0.5W, wherein Num is the number of people in the vehicle, and W is the gear position of a windscreen wiper;
the step of demisting according to the fogging safety value Sm comprises the following steps:
judging whether the fogging safety value Sm is larger than a first preset value or not, if so, not entering a demisting mode; otherwise, entering a demisting mode; and controlling the air conditioner to blow air to the front window glass in the demisting mode.
In an optional embodiment, if the fogging safety value Sm is not greater than the first preset value, entering a defogging mode specifically includes:
when the fogging safety value Sm is positioned in a first interval, entering a first demisting mode;
when the fogging safety value Sm is in a second interval, entering a second demisting mode, wherein the blowing amount in the second demisting mode is larger than that in the first demisting mode;
when the fogging safety value Sm is in a third interval, entering a third demisting mode, wherein the blowing amount in the third demisting mode is larger than that in the second demisting mode;
and any value of the first interval is greater than any value of the second interval, any value of the second interval is greater than any value of the third interval, and the third interval is not greater than 0.
In an optional embodiment, when the operation in the first demisting mode is carried out until the fogging safety value Sm is greater than the second preset value, the demisting mode is exited;
and when the second demisting mode is operated until the fogging safety value Sm is greater than a third preset value, entering a first demisting mode.
In an alternative embodiment, the first preset value is 5, the first interval is (3, 5), the second interval is (0, 3), the second preset value is 7, and the third preset value is 3.
In an alternative embodiment, in the demisting mode:
and adjusting the air conditioner internal and external circulation air door to an external circulation mode, and adjusting the air outlet mode air door to a defrosting mode.
In a second aspect, an embodiment of the present application further provides a defogging control device for defogging a front window of an automobile, including:
the condensation temperature calculation module is used for calculating the condensation temperature Td according to the temperature T in the vehicle and the relative humidity Hum in the vehicle;
the fogging safety value calculation module is used for determining a fogging safety value Sm according to the difference value of the condensation temperature Td and the front window glass temperature Tws;
and the execution module is used for demisting according to the fogging safety value Sm.
In a third aspect, embodiments provide an automobile comprising a controller configured to execute an executable program to implement the defogging control method of any one of the preceding embodiments.
The beneficial effects of the embodiment of the application include:
the defogging control method provided by the embodiment of the application comprises the steps of calculating a condensation temperature Td according to an in-vehicle temperature T and an in-vehicle relative humidity Hum; determining a fogging safety value Sm according to the difference between the condensation temperature Td and the front window glass temperature Tws; demisting according to the fogging safety value Sm. The demisting control method can demist according to actual conditions, so that various conditions can be flexibly dealt with, and the use experience of a user is improved. The defogging control device and the automobile provided by the embodiment of the application can realize the defogging control method, so that the beneficial effects are also achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a block diagram of a control system for a vehicle according to an embodiment of the present application;
FIG. 2 is a flow chart of a defogging control method according to an embodiment of the present application;
fig. 3 is a schematic diagram of a defogging control device according to an embodiment of the present disclosure.
Icon: 100-a controller; 110-an air conditioner; 120-thermometer; 130-a hygrometer; 140-a wiper blade; 101-condensation temperature calculation module; 102-a fogging safety value calculation module; 103-execution module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Fig. 1 is a control block diagram of an automobile in the embodiment of the present application. Referring to fig. 1, the present embodiment provides a defogging control method and a vehicle, wherein the vehicle includes a controller 100, and a thermometer 120, a hygrometer 130, an air conditioner 110 and a wiper 140 connected to the controller 100. The controller 100 can acquire the temperature and the relative humidity in the vehicle through the thermometer 120 and the hygrometer 130, control the operation mode of the air conditioner 110, and control the wiper 140 to operate in different gears.
Alternatively, the thermometer 120 and the hygrometer 130 may be disposed near the windshield, and the thermometer 120 and the hygrometer 130 may be integrated or may be separate.
Fig. 2 is a flowchart of a defogging control method in an embodiment of the present application. Referring to fig. 2, the defogging control method according to the embodiment of the present application can be applied to the vehicle according to the embodiment of the present application, and is implemented by the controller 100 of the vehicle, the air conditioner 110, the thermometer 120, the hygrometer 130 and the wiper 140. The defogging control method comprises the following steps:
and step S100, calculating a condensation temperature Td according to the in-vehicle temperature T and the in-vehicle relative humidity Hum.
In this embodiment, the controller 100 collects the in-vehicle temperature T and the relative humidity Hum through the thermometer 120 and the hygrometer 130, and calculates the condensation temperature Td according to the in-vehicle temperature T and the relative humidity Hum.
According to the thermodynamic principle, the saturated vapor pressure Pb in the vehicle can be calculated according to the temperature T in the vehicle, the vapor pressure Pq in the vehicle can be calculated according to the saturated vapor pressure Pb and the relative humidity Hum in the vehicle, and the condensation temperature Td can be calculated according to the vapor pressure Pq in the vehicle.
First, the saturated water pressure Pb can be calculated by the following formula:
ln(Pb)＝C1/T+C2+C3*T+C4*T2+C5*T3+C6*ln(T)；
wherein, C1＝-5800.22，C2＝1.39，C3＝-0.05，C4＝0.000042，C5＝-0.000000014，C6T is in kelvin K and Pb is in Pa 6.55.
Then, calculating the water vapor pressure Pq in the vehicle according to the saturated water vapor pressure Pb and the relative humidity Hum in the vehicle:
Pq＝Pb*Hum。
finally, calculating the condensation temperature Td according to the water vapor pressure Pq in the vehicle, and realizing the condensation temperature Td by the following formula:
Td＝-35.957-1.8726*ln(Pq)+1.1689*(ln(Pq))2。
in this way, the final desired dew temperature Td is obtained. It is understood that in the case of the in-vehicle steam pressure Pq, when the temperature decreases to Td, the steam in control starts to condense, that is, when the temperature is Td, Pq is the saturated steam pressure at that temperature.
In step S200, the fogging safety value Sm is determined based on the difference between the dew temperature Td and the windshield temperature Tws.
In the present embodiment, the controller 100 may determine whether water vapor in the air in the vehicle is easily condensed on the windshield based on the condensation temperature Td and the windshield temperature Tws, thereby determining the fogging safety value. It will be appreciated that the lower the temperature of the windshield, the lower the value of Td-Tws, the more likely the water vapour will condense as droplets on the glass, i.e. form a fog on the windshield. The formation of mist may affect the user's view and thus defogging may be required.
In the present embodiment, the collection position of the relative humidity Hum is a position close to the front window due to the in-vehicle temperature T, and the in-vehicle temperature field and the humidity field may be uneven, and the unevenness of the in-vehicle temperature and the humidity may be increased by the number of people in the vehicle. When the number of people is large, the water vapor exhaled by people behind the space in the vehicle and the temperature behind the space in the vehicle are possibly higher than the actually measured temperature and relative humidity in the vehicle, and the factors promote the formation of water mist. In addition, when the rain weather condition in winter is met, rainwater can be attached to the front windshield of the automobile, so that the safety of a driver is affected, the driver can generally open the windscreen wiper to remove the rainwater on the front windshield, the rainwater can be gradually removed in the back-and-forth action process of the windscreen wiper, but the rainwater can cover the outside of the windscreen in a large area, the temperature of the outer surface of the windscreen is reduced, the temperature difference between the inside and the outside of the automobile is gradually increased, and the fogging risk is increased. Therefore, considering that the number of persons in the vehicle and the wiper position also affect the ease of fogging, that is, the fogging safety value Sm, in the present embodiment, the fogging safety value Sm, the condensation temperature Td, the windshield temperature Tws, the number of persons in the vehicle Num, and the wiper position W satisfy the following equations:
Sm＝Tws-Td-Num-0.5*W。
the higher the fogging safety value Sm, the less likely it is to be fogged. It should be understood that in some embodiments, Sm may be set to Tws-Td without considering the influence of the number Num of people in the vehicle and the wiper position W.
And step S300, demisting according to the fogging safety value Sm.
In this embodiment, the controller 100 may control the air conditioner 110 to perform the defogging operation according to the fogging safety value Sm. Specifically, the air conditioner 110 includes a blower fan that blows air to the front window glass; the air door is used for switching the internal circulation and the external circulation; the air conditioner 110 further includes an air outlet mode damper, which can be used to adjust the air outlet mode.
The controller 100 demists according to the fogging safety value Sm, and specifically includes:
judging whether the fogging safety value Sm is larger than a first preset value or not, if so, not entering a demisting mode; otherwise, entering a demisting mode.
In this embodiment, the defogging mode includes blowing air to the windshield, and in the defogging mode, the controller 100 adjusts the air conditioner 110 internal and external circulation damper to the external circulation, and adjusts the air outlet mode damper to the defrosting mode.
In the present embodiment, the first preset value may be set to 5.
Further, in order to satisfy more various practical situations, the defogging mode is further specifically divided into a first defogging mode, a second defogging mode and a third defogging mode according to the urgency of defogging. Therefore, when the fogging safety value Sm is not more than the first preset value, the demisting mode is entered, and the method specifically comprises the following steps:
when the fogging safety value Sm is positioned in a first interval, entering a first demisting mode;
when the fogging safety value Sm is in a second interval, entering a second demisting mode, wherein the blowing amount in the second demisting mode is larger than that in the first demisting mode;
when the fogging safety value Sm is in a third interval, entering a third demisting mode, wherein the blowing amount in the third demisting mode is larger than that in the second demisting mode;
and any value of the first interval is greater than any value of the second interval, any value of the second interval is greater than any value of the third interval, and the third interval is not greater than 0.
Further, when the controller 100 controls the air conditioner 110 to operate in the first demisting mode until the safety value Sm is greater than the second preset value, the demisting mode is exited; and when the second demisting mode is operated until the fogging safety value Sm is greater than a third preset value, entering a first demisting mode. By the method, the demisting mode can be changed after the demisting safety value Sm is changed in the demisting process, so that the demisting operation of the air conditioner 110 can adapt to the change of specific environmental conditions more timely, the use experience of a user is improved, and energy is saved.
Optionally, the first interval is (3, 5), the second interval is (0, 3), the second preset value is optionally 7, and the third preset value is optionally 3.
| Mode(s) | Interval of fogging safety value Sm | Fog condition |
| Not entering a defogging mode | 5<Sm | Without risk of fogging |
| First demisting mode | 3<Sm≤5 | Low risk of fogging |
| Second demisting mode | 0<Sm≤3 | High risk of fogging |
| Third demisting mode | Sm≤0 | Fogging |
As shown in the table, when Sm > 5, there is no risk of fogging, and the defogging mode is not entered.
When Sm is more than 3 and less than or equal to 5, the risk of fogging is low, and the device enters a first demisting mode: and adjusting an internal and external circulation air door of the air conditioner 110 to an external circulation mode, adjusting an air outlet mode air door to a defrosting mode, mainly setting the small air volume of an air blower of the air conditioner 110, and withdrawing from the demisting mode until Sm > 7. The first defogging mode is mainly used for preventing the occurrence of the fogging condition of the windshield in advance in a low-energy-consumption mode.
When Sm is more than 0 and less than or equal to 3, the risk of high fogging exists, and the second demisting mode is entered: on the basis of the first demisting mode, the air volume of the air blower is increased, the refrigeration function of the compressor is started, and the air blower exits from the second demisting mode until Sm >3 and enters the first demisting mode. When entering into second defogging mode, need improve the fan amount of wind to open compressor refrigeration function, through the mode of blowing cold wind to window glass, prevent the risk of fogging more high-efficiently.
When Sm is less than or equal to 0, judging that the front window glass is fogged, and entering a third demisting mode: on the basis of the second demisting mode, the air volume of the air blower is increased to a larger gear, the rotating speed of the compressor is increased, and the mist on the front window glass is removed quickly.
It should be understood that, in the embodiment of the present application, the range of the fogging safety value interval corresponding to different defogging modes, and the specific values of the first preset value, the second preset value, and the third preset value may be adjusted according to actual needs, and are not limited to the above values. In other embodiments, the work means in each mode may be further increased.
Fig. 3 is a schematic diagram of a defogging control device in an embodiment of the present application, which is used for defogging a front window of an automobile. Defogging controlling means is applicable to the car that this application embodiment provided, and it includes:
the condensation temperature calculation module 101 is used for calculating the condensation temperature Td according to the temperature T in the vehicle and the relative humidity Hum in the vehicle;
a fogging safety value calculation module 102, configured to determine a fogging safety value Sm according to a difference between the condensation temperature Td and the windshield temperature Tws;
and the execution module 103 is used for demisting according to the fogging safety value Sm.
The implementation of each module of the defogging control device can refer to the above description of the defogging control method, and is not described herein again. It should be understood that the respective modules of the defogging control device are software functional modules and computer programs that can be executed by the controller 100.
In summary, the defogging control method, the defogging control device and the automobile provided by the application can calculate the condensation temperature Td according to the temperature T in the automobile and the relative humidity Hum in the automobile through the calculation of the temperature and the relative humidity in the automobile; determining a fogging safety value Sm according to the difference between the condensation temperature Td and the front window glass temperature Tws; demisting according to the fogging safety value Sm. The defogging control method can perform defogging according to actual conditions, flexibly classify the risk of fogging into multiple grades, and execute different defogging modes according to different fogging risks. Therefore, the system can deal with various actual conditions and improve the use experience of the user.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. A defogging control method for defogging a front window of an automobile, comprising:
calculating a condensation temperature Td according to the in-vehicle temperature T and the in-vehicle relative humidity Hum;
determining a fogging safety value Sm according to the difference value of the condensation temperature Td and the front window glass temperature Tws;
demisting according to the fogging safety value Sm;
the determination of the fogging safety value Sm from the difference between the condensation temperature Td and the windshield temperature Tws is carried out by the following formula:
Sm-Tws-Td-Num-0.5W, wherein Num is the number of people in the vehicle, and W is the gear position of a windscreen wiper;
the step of demisting according to the fogging safety value Sm comprises the following steps:
judging whether the fogging safety value Sm is larger than a first preset value or not, if so, not entering a demisting mode; otherwise, entering the demisting mode; and controlling an air conditioner to blow air to the front window glass in the demisting mode.
2. The defogging control method according to claim 1, wherein said step of calculating a condensation temperature Td based on the in-vehicle temperature T and the in-vehicle relative humidity Hum comprises:
calculating the saturated vapor pressure Pb in the vehicle according to the temperature T in the vehicle;
calculating the water vapor pressure Pq in the vehicle according to the saturated water vapor pressure Pb and the relative humidity Hum in the vehicle;
and calculating the condensation temperature Td according to the water vapor pressure Pq in the vehicle.
3. The defogging control method according to claim 2, wherein a saturated vapor pressure Pb in the vehicle is calculated based on the in-vehicle temperature T, by the following formula:
ln(Pb)＝C1/T+C2+C3*T+C4*T2+C5*T3+C6l n (T), wherein C1～C6Is a constant coefficient;
calculating the water vapor pressure Pq in the vehicle according to the saturated water vapor pressure Pb and the relative humidity Hum in the vehicle, and realizing the following formula:
Pq＝Pb*Hum；
calculating the condensation temperature Td according to the vehicle interior steam pressure Pq, and realizing the condensation temperature Td by the following formula:
Td＝-35.957-1.8726*ln(Pq)+1.1689*(ln(Pq))2。
4. the defogging control method as recited in claim 3, wherein C1＝-5800.22，C2＝1.39，C3＝-0.05，C4＝0.000042，C5＝-0.000000014，C6＝6.55。
5. The defogging control method according to claim 1, wherein if the fogging safety value Sm is not greater than the first preset value, entering the defogging mode specifically comprises:
when the fogging safety value Sm is positioned in a first interval, entering a first demisting mode;
when the fogging safety value Sm is located in a second interval, entering a second demisting mode, wherein the blowing amount in the second demisting mode is larger than that in the first demisting mode;
when the fogging safety value Sm is located in a third interval, entering a third demisting mode, wherein the blowing amount in the third demisting mode is larger than that in the second demisting mode;
and any value of the first interval is greater than any value of the second interval, any value of the second interval is greater than any value of the third interval, and the third interval is not greater than 0.
6. The defogging control method according to claim 5, wherein:
when the first demisting mode is operated until the fogging safety value Sm is greater than a second preset value, the demisting mode is exited;
and when the second demisting mode is operated until the fogging safety value Sm is greater than a third preset value, entering the first demisting mode.
7. The defogging control method according to claim 6, wherein the first preset value is 5, the first interval is (3, 5), the second interval is (0, 3), the second preset value is 7, and the third preset value is 3.
8. A defogging control device for defogging a front window of an automobile, comprising:
the condensation temperature calculation module is used for calculating the condensation temperature Td according to the temperature T in the vehicle and the relative humidity Hum in the vehicle;
the fogging safety value calculation module is used for determining a fogging safety value Sm according to the difference value of the condensation temperature Td and the front window glass temperature Tws;
the execution module is used for demisting according to the fogging safety value Sm;
the determination of the fogging safety value Sm from the difference between the condensation temperature Td and the windshield temperature Tws is carried out by the following formula:
Sm-Tws-Td-Num-0.5W, wherein Num is the number of people in the vehicle, and W is the gear position of a windscreen wiper;
the step of demisting according to the fogging safety value Sm comprises the following steps:
judging whether the fogging safety value Sm is larger than a first preset value or not, if so, not entering a demisting mode; otherwise, entering the demisting mode; and controlling an air conditioner to blow air to the front window glass in the demisting mode.
9. An automobile characterized by comprising a controller for executing an executable program to implement the defogging control method as recited in any one of claims 1 to 7.
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| CN112109522B (en) * | 2020-09-25 | 2022-01-18 | 北京新能源汽车股份有限公司 | Control method, electric vehicle, and storage medium |
| CN112428779A (en) * | 2020-11-19 | 2021-03-02 | 北京车和家信息技术有限公司 | Control method and device of vehicle air conditioning system |
| CN112836888A (en) * | 2021-02-10 | 2021-05-25 | 延锋汽车饰件系统有限公司 | Vehicle window fogging prevention method, vehicle window fogging prevention system, electronic device, and storage medium |
| CN114475523A (en) * | 2022-02-24 | 2022-05-13 | 重庆长安新能源汽车科技有限公司 | Automatic defogging control method and system, vehicle and storage medium |
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