CN111976413B - Vehicle air conditioner control device and method, vehicle air conditioner and vehicle - Google Patents
Vehicle air conditioner control device and method, vehicle air conditioner and vehicle Download PDFInfo
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- CN111976413B CN111976413B CN201910424041.6A CN201910424041A CN111976413B CN 111976413 B CN111976413 B CN 111976413B CN 201910424041 A CN201910424041 A CN 201910424041A CN 111976413 B CN111976413 B CN 111976413B
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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
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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- Air-Conditioning For Vehicles (AREA)
Abstract
The invention relates to the technical field of automobile air conditioners, and provides a vehicle air conditioner control device, a vehicle air conditioner control method, a vehicle air conditioner and a vehicle.
Description
Technical Field
The invention relates to the technical field of automobile air conditioners, in particular to a vehicle air conditioner control device and method, a vehicle air conditioner and a vehicle.
Background
The blower operates as the heart of the vehicle air conditioning system throughout the air circulation process. The high-load working air volume of the blower is large, and the low-load working air volume is small. The air inlet mode of the blower comprises an inner circulation mode and an outer circulation mode, and is controlled by an inner circulation air door and an outer circulation air door; the air outlet mode of the air blower is determined according to the requirements of drivers and passengers, and the air outlet state is ensured by controlling defrosting, surface blowing and foot blowing air doors. The air inlet and air outlet modes of the air conditioner blower are controlled by the air conditioner controller. At present, when switching is performed between a heating mode and a cooling mode, the air volume of an air blower is not changed at the same gear, and the optimal heating performance in the heating mode and the higher-level energy conservation cannot be provided for users.
Disclosure of Invention
In view of the above, the present invention is directed to a vehicle air conditioner control device, a vehicle air conditioner control method, a vehicle air conditioner and a vehicle, which are used for determining a corresponding air volume according to an ambient temperature of the vehicle when the vehicle air conditioner is in a heating mode, so as to control a blower of the air conditioner to deliver the corresponding air volume to the vehicle.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a vehicular air-conditioning control apparatus comprising: the temperature detection module is used for collecting the ambient temperature of the vehicle under the condition that the vehicle air conditioner is in a heating mode; and a control module to: determining the air volume corresponding to the environment temperature; and controlling an air blower of the air conditioner to transmit the corresponding air volume to the vehicle.
Further, the vehicular air-conditioning control apparatus further includes: the humidity detection module is used for acquiring the air humidity at the front windshield of the vehicle; the control module is also used for judging the fogging risk level according to the air humidity; and in response to the fogging risk level exceeding a risk level threshold, controlling positions of inner and outer circulation dampers of the air conditioner to reduce an inner and outer air mixing ratio of the corresponding air volume.
Further, the control module is further configured to control the air blower of the air conditioner to increase the amount of the full outside air transmitted to the vehicle if the risk level of fogging determined by the control module still exceeds the risk level threshold after the control module controls the internal and external circulation air doors of the vehicle air conditioner to be in the full outside air position.
Further, the air volume corresponding to the ambient temperature is determined according to a calibration table, and the air volume calibrated for different ambient temperatures or different ambient temperature ranges is stored in the calibration table in advance.
The vehicle air conditioner control device determines the corresponding air volume according to the ambient temperature of the vehicle, so that the air blower of the air conditioner is controlled to transmit the corresponding air volume to the vehicle.
Another objective of the present invention is to provide a vehicle air conditioner control method to improve user comfort and save energy.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a vehicle air conditioning control method, comprising: collecting the ambient temperature of the vehicle under the condition that the vehicle air conditioner is in a heating mode; determining the air volume corresponding to the environment temperature; and controlling an air blower of the air conditioner to transmit the corresponding air volume to the vehicle.
Further, the vehicle air conditioning control method further includes: collecting air humidity at a front windshield of the vehicle; judging the fogging risk level according to the air humidity; and in response to the fogging risk level exceeding a risk level threshold, controlling the position of an internal and external circulation air door of the air conditioner to reduce the internal and external air mixing ratio of the corresponding air volume.
Further, the vehicle air conditioning control method further includes: and if the fogging risk level still exceeds the risk level threshold value after the inner and outer circulating air doors of the air conditioner are positioned at the position of full external air, controlling the air blower of the air conditioner to increase the air volume of the full external air transmitted to the vehicle.
Further, the air volume corresponding to the ambient temperature is determined according to a calibration table, and the air volume calibrated for different ambient temperatures or different ambient temperature ranges is stored in the calibration table in advance.
The vehicle air conditioner control method has the same advantages as the vehicle air conditioner control device compared with the prior art, and the detailed description is omitted.
Another objective of the present invention is to provide a vehicle air conditioner provided with the vehicle air conditioner control device, which has the same advantages as the vehicle air conditioner control device described above compared to the prior art, and therefore, the description thereof is omitted.
Another object of the present invention is to provide a vehicle provided with the vehicle air conditioner, which has the same advantages as the vehicle air conditioner described above compared to the prior art, and therefore, the detailed description thereof is omitted.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a vehicle air conditioning control apparatus according to an embodiment of the present invention;
fig. 2 is a vehicle air conditioning control device according to another embodiment of the present invention;
FIG. 3 is a schematic diagram of an air cycle according to an embodiment of the present invention;
FIG. 4 is a block diagram of an air conditioning function of a vehicle according to an embodiment of the present invention;
fig. 5 is a flowchart of a vehicle air conditioner control method according to an embodiment of the present invention.
FIG. 6 is a flowchart illustrating a method for controlling an air conditioner of a vehicle according to another embodiment of the present invention
Description of reference numerals:
1 power 2 evaporimeter 3 temperature detection module
4 vehicle air conditioner controlling means 5 humidity detection module 6 vehicle control unit VCU
7 mode air door motor 8 blower 9 electronic water pump
10 internal and external circulation air door 11 high-voltage electric heater 12 electric compressor
13 control module
Detailed Description
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Fig. 1 shows a vehicle air-conditioning control device 4 according to an embodiment of the present invention, where the vehicle air-conditioning control device 4 includes: the temperature detection module 3 is used for collecting the ambient temperature of the vehicle under the condition that the vehicle air conditioner is in a heating mode; and a control module 13 for: determining the air volume corresponding to the ambient temperature; and controlling a blower 8 of an air conditioner to transmit the corresponding air volume to the vehicle.
The vehicle air-conditioning control device 4 of the present invention is used for a vehicle air conditioner in a heating mode. The temperature detection module 3 may be a temperature sensor originally installed in the vehicle for detecting the temperature outside the vehicle; the blower is a device applied to an automobile air conditioning system and used for ventilating the interior of an automobile, so that the circulating air quantity in the automobile is ensured; the control module 13 may be an air conditioner controller, and the control module 13 controls the terminal voltages at the two ends of the blower through a certain control logic according to the detected ambient temperature, so as to control the air volume. In the mode switching process, in consideration of the situation that the air volume sudden change may occur due to the change of the blower terminal voltage at the same gear, the control module 13 may slowly change the blower terminal voltage according to the calibration step length to prevent the air volume from being suddenly high or low.
The vehicle air-conditioning control device 4 according to the embodiment of the invention determines the corresponding air volume according to the ambient temperature of the vehicle when the vehicle air-conditioning is in the heating mode, so as to control the air blower of the air-conditioning to deliver the corresponding air volume to the vehicle.
Fig. 2 shows a vehicle air-conditioning control device 4 according to another embodiment of the present invention, where the vehicle air-conditioning control device 4 includes: the temperature detection module 3 is used for collecting the ambient temperature of the vehicle under the condition that the vehicle air conditioner is in a heating mode; and a control module 13 for: determining the air volume corresponding to the ambient temperature; and controlling an air blower of the air conditioner to transfer corresponding air volume to the vehicle.
The temperature detection module 3 may be a temperature sensor originally installed in the vehicle for detecting the temperature outside the vehicle; the blower 8 is a device applied to an automobile air conditioning system and used for ventilating the interior of an automobile so as to ensure the circulating air volume in the automobile; the control module 13 may be an air conditioner controller, and the control module 13 controls the terminal voltages at the two ends of the blower 8 through a certain control logic according to the detected ambient temperature, so as to control the air volume.
The air volume corresponding to the ambient temperature can be determined according to a calibration table, and the calibrated air volume aiming at different ambient temperatures or different ambient temperature ranges is stored in the calibration table in advance. Specifically, the control module 13 may calibrate optimal heating performance at different ambient temperatures (-20 ℃ to 20 ℃) and at different blower voltages (4V to 14V) in an external circulation and full-warm mode, and then draw control curves corresponding to the different ambient temperatures and the different terminal voltages, so as to obtain the required air volume by controlling the terminal voltages of the blowers according to the different ambient temperatures.
The vehicular air-conditioning control apparatus 4 further includes: the humidity detection module 5 is used for acquiring the air humidity at the front windshield of the vehicle; the control module 13 is further configured to determine a risk level of fogging according to the air humidity, and in response to the risk level of fogging exceeding a risk level threshold, control the position of the inner and outer circulation dampers 10 of the air conditioner to reduce the inner and outer air mixing ratio of the corresponding air volume.
Specifically, the humidity detection module 5 may be a temperature and humidity sensor of the vehicle, disposed at a front windshield of the vehicle, for collecting air humidity at the front windshield of the vehicle, and then the control module 13 determines a risk level of fogging according to the collected air humidity, wherein a relationship between humidity and fogging may be determined through tests or measurements, and then a plurality of risk levels of fogging may be divided according to humidity. The control module 13 compares the determined fogging risk level corresponding to the air humidity with a risk level threshold, and if the fogging risk level exceeds the risk level threshold, the control module controls the positions of the internal and external circulation air doors of the air conditioner to reduce the internal and external air mixing ratio of the corresponding air volume.
Specifically, as shown in fig. 3, the internal circulation and external circulation modes of the air conditioner can be controlled by changing the positions of the internal and external circulation air doors of the air conditioner, that is, the mixture ratio of the internal air and the external air of the vehicle is controlled to circulate air in the vehicle, then the air mixed with the internal air and the external air filtered by the filter screen is transferred to the evaporator for cooling or heated by the warm air core by the blower of the vehicle air conditioning system, and finally the cooled and/or heated air is transferred to the defrosting air door opening, the face blowing air door opening and/or the foot blowing air door opening by the temperature air door.
In addition, the control module 13 is also used for controlling the blower 8 of the air conditioner to increase the air volume of the full external air transferred to the vehicle if the fogging risk level determined by the control module 13 still exceeds the risk level threshold after the control module 13 controls the internal and external circulation damper 10 of the vehicle air conditioner to be in the position of the full external air.
It can be understood that in the winter heating process, the humidity in the vehicle must be reduced in order to ensure that the glass does not fog, so that an external circulation state (namely, introducing fresh environmental air) is generally adopted. When external circulation air inlet is introduced, for example, ambient cold air is introduced into a vehicle, heated high-temperature gas in the vehicle is exhausted out of the vehicle, so that the load of a warm air core body is increased, in a fuel vehicle type, the problem of the load of the warm air core body is generally not considered because water circulating in the warm air core body is engine waste heat and heating does not consume extra energy, and the new energy vehicle type, especially a large number of pure electric vehicle types at present, can only heat hot water through warm air PTC or heat air through warm air PTC due to the fact that heating through the engine waste heat cannot be carried out, and the increase of the cold load inevitably causes the increase of the energy consumption of the warm air PTC, so that the endurance mileage of the whole vehicle is influenced, and vehicle owners complain about.
In order to improve the endurance mileage of the pure electric vehicle and reduce the energy consumption, the corresponding schemes adopted by various large air conditioning system manufacturers at present are as follows:
1) the heat pump system is developed, but the control of the heat pump system is complex, the system suppliers are foreign system manufacturers at present, the development cost is high, the cost of a single vehicle is increased by about 2000 yuan, so the scheme can reduce the heating energy consumption, but the cost is too high to be beneficial to the universal application;
2) the PTC power is reduced, namely the power consumption is reduced by selecting a small PTC, the cost of the scheme is reduced, but the improvement of the comfort in the vehicle is not facilitated.
The optimal heating energy-saving effect can be achieved by controlling the entering amount of the ambient external air, and the EV-TEST working condition circulation endurance mileage of heating at-7 ℃ is estimated to be improved by 10 percent compared with a vehicle without the control.
The invention can be used in the air conditioner external circulation full-heating mode, in the mode, the air quantity of different gear can be distinguished from the air quantity in other modes (such as a refrigeration mode) through the device, the internal and external circulation air doors are controlled according to the air humidity, and after the internal and external circulation air doors are positioned at the position of full external air, the air force is increased through controlling the air blower of the air conditioner, so that the full external air quantity transmitted to the vehicle is increased, on one hand, the method accelerates the circulation speed of the air at the front windshield, so as to increase the evaporation speed of moisture, on the other hand, the proportion of the air with higher humidity in the original vehicle can be further reduced through increasing the air quantity of the full external air, so as to reduce the air humidity in the vehicle, the pure electric vehicle air conditioner can be more energy-saving through the device, any previous fresh air quantity control form is distinguished, the comfort level of passengers can be ensured, and the fogging risk can be reduced on the basis of ensuring energy conservation, finally, the endurance mileage is increased and the driving safety is improved.
Based on the above embodiment, the embodiment of the invention further determines the fogging risk level by detecting the air humidity at the front windshield of the vehicle, and controls the position of the internal and external circulation air doors of the air conditioner to reduce the internal and external air mixing ratio of the corresponding air volume when the fogging risk level exceeds the risk level threshold, and controls the air blower of the air conditioner to increase the air volume of the full external air transferred to the vehicle if the fogging risk level determined by the control module still exceeds the risk level threshold after the internal and external circulation air doors of the vehicle air conditioner are controlled by the control module to be at the position of the full external air, so that not only the comfort of passengers can be ensured, but also the fogging risk can be reduced on the basis of ensuring energy conservation.
Fig. 4 is a functional block diagram of a vehicle air conditioner according to an embodiment of the present invention, which further includes a vehicle air conditioner control device 4 according to the above embodiment. Specifically, the vehicle air conditioner includes: the temperature detection module 3 is used for collecting the ambient temperature of the vehicle under the condition that the vehicle air conditioner is in a heating mode; the control module 13 is used for determining the air volume corresponding to the ambient temperature; and controlling a blower 8 of the air conditioner to deliver corresponding air volume to the vehicle.
The temperature detection module 3 may include an indoor temperature sensor and an outdoor temperature sensor configured in the vehicle itself, and the outdoor temperature sensor of the vehicle may be used to collect the ambient temperature. The power supply 1 provides electrical power to a control module 13, which control module 13 may be an air conditioning controller of a vehicle.
The vehicle air conditioner further includes: the humidity detection module 5 is used for acquiring the air humidity at the front windshield of the vehicle; the control module 13 is further configured to determine a risk level of fogging according to the air humidity, and in response to the risk level of fogging exceeding a risk level threshold, control the position of the inner and outer circulation dampers 10 of the air conditioner to reduce the inner and outer air mixing ratio of the corresponding air volume.
The humidity detection module 5 can be a temperature and humidity sensor of the vehicle, is arranged at the front windshield of the vehicle and is used for collecting the air humidity and the temperature at the front windshield of the vehicle, then the control module 13 judges the fogging risk level according to the collected air humidity, wherein the relation between the humidity and the fogging can be determined through tests or measurement, and then a plurality of fogging risk levels are divided according to the humidity. The control module 13 compares the determined fogging risk level corresponding to the air humidity with a risk level threshold, and if the fogging risk level exceeds the risk level threshold, the control module controls the positions of the internal and external circulation air doors of the air conditioner to reduce the internal and external air mixing ratio of the corresponding air volume.
Further, the vehicular air conditioner further includes: an evaporator 2 for achieving a refrigerating effect by a flow of a condensed liquid in a refrigerating mode; the VCU vehicle controller 6 is used for realizing vehicle control; the mode air door motor 7 is used for driving air doors such as a defrosting air door, a dough outlet air door and a foot blowing air door; the electronic water pump 9 is used as a component of a water circulation, cooling or on-board water supply system; the high-voltage electric heater 11 and the electric compressor 12 are respectively connected with the control module 13 through LIN buses and are used for heating and refrigerating air.
Compared with the prior art, the beneficial effects of the vehicle air conditioner provided by the embodiment of the invention are similar to those of the vehicle air conditioner control device provided by the embodiment of the invention, and are not repeated herein.
Fig. 5 is a flowchart of a vehicle air-conditioning control method according to an embodiment of the present invention, including:
and S501, collecting the ambient temperature under the condition that the vehicle air conditioner is in a heating mode.
Specifically, the ambient temperature outside the vehicle can be collected by originally arranging a temperature sensor for detecting the temperature outside the vehicle in the vehicle.
Step S502, the air volume corresponding to the ambient temperature is determined.
And step S503, controlling the blower of the air conditioner to deliver the corresponding air volume to the vehicle.
Specifically, the air volume corresponding to the ambient temperature may be determined according to a calibration table, in which air volumes calibrated for different ambient temperatures or different ambient temperature ranges are pre-stored. The air quantity transmitted by the blower can be controlled by the terminal voltages applied to the two ends of the blower, the optimal heating performance under different environment temperatures (-20 ℃) and different blower voltages (4-14V) can be calibrated in an external circulation and full heating mode, and then control curves corresponding to the different environment temperatures and the different terminal voltages are drawn. Therefore, different blower terminal voltages are adopted according to different environmental temperatures, and the required air volume is obtained by controlling the blower terminal voltages.
Compared with the prior art, the beneficial effects of the vehicle air conditioner control method provided by the embodiment of the invention are similar to those of the vehicle air conditioner control device provided by the embodiment of the invention, and are not repeated herein.
Fig. 6 is a flowchart of a vehicle air conditioner control method according to another embodiment of the present invention. The vehicle air-conditioning control method provided by the embodiment of the invention is similar to the vehicle air-conditioning control method in the fifth embodiment in principle and beneficial effect, and is different from the fifth embodiment only in that steps S604-S610 are added after the corresponding air volume is controlled and transmitted to the vehicle, namely the vehicle air-conditioning control method further comprises the following steps:
step S604, collecting air humidity.
And step S605, judging the fogging risk level according to the collected air humidity.
Step S606, determining whether the fogging risk level exceeds the risk level threshold, if yes, executing step S507, otherwise ending the control flow.
And step S607, controlling the position of the air conditioner internal and external air doors.
Specifically, the risk level of fogging may be determined using the humidity of air at the front windshield of the vehicle collected by a temperature and humidity sensor of the vehicle disposed at the front windshield of the vehicle, wherein the relationship between the humidity and the fogging may be determined through experiments or measurements, and then a plurality of risk levels of fogging may be classified according to the humidity. And then comparing the fogging risk level corresponding to the determined air humidity with a risk level threshold, and if the fogging risk level exceeds the risk level threshold, controlling the positions of an internal and external circulation air door of the air conditioner to reduce the internal and external air mixing ratio of the corresponding air volume.
And step S608, judging whether the inner and outer circulation air doors are at the position of full external air, if so, executing step S609, otherwise, ending the control flow.
It can be understood that when the internal and external circulation air doors are positioned at the position of full external air, the air transmitted by the air blower is full external environment air.
And step S609, judging whether the fogging risk level exceeds the risk level threshold, if so, executing the step S610, otherwise, ending the control flow.
In step S610, control increases the total external air volume delivered to the vehicle.
Specifically, if the risk level of fogging still exceeds the risk level threshold after the internal and external circulation dampers of the air conditioner of the vehicle are controlled to be in the position of the full external wind, the blower of the air conditioner is controlled to increase the amount of the full external wind transferred to the vehicle.
Compared with the prior art, the beneficial effects of the vehicle air conditioner control method provided by the embodiment of the invention are similar to those of the vehicle air conditioner control device provided by the embodiment of the invention, and are not repeated herein.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A vehicular air-conditioning control device characterized by comprising:
the temperature detection module is used for collecting the ambient temperature of the vehicle under the condition that the vehicle air conditioner is in a heating mode; and
a control module to:
determining the air volume corresponding to the environment temperature, wherein the air volume corresponding to the environment temperature is determined according to a calibration table, and the calibration table is pre-stored with air volumes calibrated for different environment temperatures or different environment temperature ranges;
and controlling the voltage of the blower end of the air conditioner to change according to the calibrated step length so that the blower of the air conditioner transmits the corresponding air volume to the vehicle.
2. The vehicular air-conditioning control apparatus according to claim 1,
the vehicular air-conditioning control apparatus further includes:
the humidity detection module is used for acquiring the air humidity at the front windshield of the vehicle;
the control module is further used for judging a fogging risk level according to the air humidity, and responding to the fact that the fogging risk level exceeds a risk level threshold value, and controlling the positions of an internal and external circulation air door of the air conditioner to reduce the internal and external air mixing ratio of the corresponding air volume.
3. The vehicular air-conditioning control apparatus according to claim 2,
the control module is further used for controlling the air blower of the air conditioner to increase the air volume of the full external air transmitted to the vehicle if the fogging risk level judged by the control module still exceeds the risk level threshold value after the control module controls the internal and external circulation air doors of the vehicle air conditioner to be in the full external air position.
4. A vehicular air-conditioning control method characterized by comprising:
collecting the ambient temperature of the vehicle under the condition that the vehicle air conditioner is in a heating mode;
determining the air volume corresponding to the environment temperature, wherein the air volume corresponding to the environment temperature is determined according to a calibration table, and the calibration table is pre-stored with air volumes calibrated for different environment temperatures or different environment temperature ranges;
and controlling the voltage of the blower end of the air conditioner to change according to the calibrated step length so that the blower of the air conditioner transmits the corresponding air volume to the vehicle.
5. The vehicle air-conditioning control method according to claim 4, characterized by further comprising:
collecting air humidity at a front windshield of the vehicle;
judging the fogging risk level according to the air humidity;
and in response to the fogging risk level exceeding a risk level threshold, controlling the position of an internal and external circulation air door of the air conditioner to reduce the internal and external air mixing ratio of the corresponding air volume.
6. The vehicle air-conditioning control method according to claim 5, characterized by further comprising:
and if the fogging risk level still exceeds the risk level threshold value after the inner and outer circulating air doors of the air conditioner are positioned at the position of full external air, controlling the air blower of the air conditioner to increase the air volume of the full external air transmitted to the vehicle.
7. A vehicular air conditioner characterized by being provided with the vehicular air conditioning control apparatus of any one of claims 1 to 3.
8. A vehicle characterized by being provided with the vehicular air conditioner of claim 7.
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| CN114043847A (en) * | 2021-12-17 | 2022-02-15 | 江铃汽车股份有限公司 | Method for reducing energy consumption of air conditioner of pure electric vehicle |
| CN114290872A (en) * | 2021-12-27 | 2022-04-08 | 东风马勒热***有限公司 | Vehicle air conditioner fresh air circulation system and control method thereof |
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