CN113682104B - Air conditioner control method, control device and control system - Google Patents
Air conditioner control method, control device and control system Download PDFInfo
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- CN113682104B CN113682104B CN202110950513.9A CN202110950513A CN113682104B CN 113682104 B CN113682104 B CN 113682104B CN 202110950513 A CN202110950513 A CN 202110950513A CN 113682104 B CN113682104 B CN 113682104B
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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
- B60H1/00735—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
- B60H1/0075—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 the input being solar radiation
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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
- B60H1/00735—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
- B60H1/00792—Arrangement of detectors
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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
- 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
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating 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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Abstract
The application relates to an air conditioner control method, a control device and a control system, and relates to the technical field of air conditioner control, wherein the method comprises the following steps: taking the difference between the temperature of the front windshield and the dew point temperature as a judgment temperature difference; three unconnected temperature difference intervals under the environmental working condition of the vehicle are obtained; a fogging risk interval is formed between the low end values of two adjacent temperature difference intervals, and an interval smaller than or equal to the low end value of the third temperature difference interval is a fogging risk interval; selecting a corresponding circulation mode and an air outlet mode according to a fogging risk interval in which the initial value of the temperature difference is judged; when judging that the temperature difference is reduced to the high end value of any fog risk interval, switching to a circulation mode and an air outlet mode corresponding to the fog risk interval; when judging that the temperature difference is increased from the low end value of any temperature difference interval to the high end value of any temperature difference interval, switching to a circulation mode and an air outlet mode corresponding to the fogging risk interval where the high end value is positioned; according to the method and the device, the temperature fluctuation in the vehicle can be reduced, and the energy consumption of the air conditioner can be reduced.
Description
Technical Field
The application relates to the technical field of air conditioner control, in particular to an air conditioner control method, a control device and a control system.
Background
At present, new energy automobiles are rapidly developed, and how to reduce the energy consumption of the new energy automobiles is always a core subject of each new energy host factory. Among them, the air conditioner of the automobile is one of the components with larger power consumption on the new energy automobile, and is always the key object of the research of each new energy host factory.
In the related art, the air inlet mode of the air conditioner is mainly an external circulation mode and an internal circulation mode. Wherein, the internal circulation mode has lower energy consumption than the external circulation mode because the internal circulation mode does not carry out heat load outside the vehicle. However, the long-time use of the internal circulation can easily cause the problem of fog generation caused by the large humidity in the vehicle due to the respiration of passengers in the vehicle, and also can easily cause the reduction of the oxygen content in the vehicle, so that the comfort of the passengers is poor. In addition, when the occupant manually adjusts the cycle to the outer cycle or adjusts the vehicle front windshield fogging to the defrost mode due to the perceived discomfort, the sudden adjustment from the full inner cycle to the full outer cycle also generates large temperature fluctuations, which are not only less comfortable, but also relatively high in air conditioning energy consumption.
Disclosure of Invention
Aiming at one of the defects existing in the prior art, the purpose of the application is to provide an air conditioner control method, a control device and a control system, so as to solve the problems of larger temperature fluctuation, poorer comfort and higher energy consumption caused by directly adjusting from full internal circulation to full external circulation in the related art.
A first aspect of the present application provides an air conditioner control method, including the steps of:
acquiring the temperature of the front windshield and the dew point temperature, and taking the difference value between the temperature of the front windshield and the dew point temperature as a judgment temperature difference;
three unconnected temperature difference intervals under the environment working condition of the vehicle are obtained, and the second temperature difference interval is positioned between the low end value of the first temperature difference interval and the high end value of the third temperature difference interval; a fogging risk interval is formed between the low end values of two adjacent temperature difference intervals, and an interval smaller than or equal to the low end value of the third temperature difference interval is a fogging risk interval;
selecting a corresponding circulation mode and an air outlet mode according to the fogging risk interval in which the initial value of the judgment temperature difference is positioned;
when the judging temperature difference is reduced to the high end value of any fog risk interval, switching to a circulation mode and an air outlet mode corresponding to the fog risk interval;
when the judging temperature difference is increased from the low end value of any temperature difference section to the high end value of the temperature difference section, switching to a circulation mode and an air outlet mode corresponding to the fogging risk section where the high end value is positioned.
In some embodiments, a low risk of fogging is formed between the low end value of the second temperature difference section and the low end value of the first temperature difference section, and a medium risk of fogging is formed between the low end value of the third temperature difference section and the low end value of the second temperature difference section, and a section less than or equal to the low end value of the third temperature difference section is a high risk of fogging.
In some embodiments, the circulation mode corresponding to the low risk interval is a first compensation circulation mode, and the corresponding air outlet mode is a comfort air outlet mode; the compensation cycle mode is: the air inlet of the air conditioner is in an internal and external circulation mixed air mode;
the circulation mode corresponding to the medium-fogging risk interval is a second compensation circulation mode, and the corresponding air outlet mode is a defrosting mode; the internal circulation proportion of the second compensation circulation mode is smaller than that of the first compensation circulation mode;
the circulation mode corresponding to the high-fogging risk interval is an external circulation mode, and the corresponding air outlet mode is a defrosting mode.
In some embodiments, the acquiring three unconnected temperature difference intervals under the environmental condition of the vehicle specifically includes:
acquiring the current temperature outside the vehicle, the sunlight intensity and the relative humidity of the front windshield;
based on a pre-stored relation table, looking up a table to obtain a first compensation value, a second compensation value and a third compensation value under the conditions of the outside temperature, the sunlight intensity and the relative humidity of the front windshield;
taking the sum of the first compensation value and a first preset value as a low end value of a first temperature difference interval, and taking the sum of the first compensation value and a second preset value as a high end value of the first temperature difference interval;
taking the sum of the second compensation value and the first preset value as a low end value of a second temperature difference interval, and taking the sum of the second compensation value and the second preset value as a high end value of the second temperature difference interval;
and taking the sum of the third compensation value and the first preset value as a low end value of a third temperature difference interval, and taking the sum of the third compensation value and the second preset value as a high end value of the third temperature difference interval.
In some embodiments, the first preset value is 1-3 ℃.
In some embodiments, the second preset value is 3-6 ℃.
In some embodiments, when the initial value of the determined temperature difference is greater than the low end value of the first temperature difference interval, the air conditioner is controlled to be in an internal circulation mode and a comfort air outlet mode.
In some embodiments, before the acquiring the front windshield temperature and the dew point temperature, the method further includes:
and judging whether the air conditioner is set to an AUTO running mode, and if not, not acquiring the front windshield temperature and the dew point temperature.
A second aspect of the present application provides an air conditioner control device based on the above method, which includes:
the first acquisition module is used for acquiring the front windshield temperature and the dew point temperature, and taking the difference value between the front windshield temperature and the dew point temperature as a judgment temperature difference;
the second acquisition module is used for acquiring three unconnected temperature difference intervals and a plurality of fogging risk intervals under the environment working condition of the vehicle;
the control module is used for selecting a corresponding circulation mode and an air outlet mode according to the fogging risk interval in which the initial value of the judgment temperature difference is positioned;
the control module is further used for switching to a circulation mode and an air outlet mode corresponding to any fog risk interval when the judging temperature difference is reduced to the high end value of the fog risk interval; and when the judging temperature difference is increased from the low end value of any temperature difference section to the high end value of the judging temperature difference section, switching to a circulation mode and an air outlet mode corresponding to the fogging risk section where the high end value is positioned.
A third aspect of the present application provides an air conditioner control system, which includes the air conditioner control device described above, further including:
a sunlight sensor for collecting sunlight intensity;
the temperature and humidity sensor is used for acquiring the temperature and the relative humidity of the front windshield and acquiring the dew point temperature based on the temperature and the relative humidity of the front windshield;
the vehicle exterior temperature sensor is used for acquiring the vehicle exterior temperature and sending the vehicle exterior temperature to the air conditioner control device;
and a vehicle body controller for transmitting the sunlight intensity, the front windshield temperature, the front windshield relative humidity and the dew point temperature to an air conditioner control device.
The beneficial effects that technical scheme that this application provided brought include:
the application provides an air conditioner control method, a control device and a control system, wherein the front windshield temperature and the dew point temperature are obtained, the difference value between the front windshield temperature and the dew point temperature is used as a judgment temperature difference, and after three unconnected temperature difference intervals and a plurality of fogging risk intervals under the environment working condition of a vehicle are obtained, a corresponding circulation mode and an air outlet mode can be selected according to the fogging risk interval where the initial value of the judgment temperature difference is located; switching to a circulation mode and an air outlet mode corresponding to the fog risk interval when judging that the temperature difference is reduced to the high end value of any fog risk interval; when judging that the temperature difference is increased from the low end value of any temperature difference section to the high end value of the temperature difference section, switching to a circulation mode and an air outlet mode corresponding to the fogging risk section where the high end value is positioned; therefore, corresponding circulation modes and air outlet modes are formulated for different fogging risk intervals, and the circulation modes and the air outlet modes are not frequently switched in a short time, so that the temperature fluctuation in the vehicle can be reduced, the riding comfort of passengers is ensured, and the energy consumption of an air conditioner can be greatly reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for controlling hollow modulator according to an embodiment of the present application;
FIG. 2 is a schematic block diagram of a hollow-core control system in accordance with an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The embodiment of the application provides an air conditioner control method, which can solve the problems of large temperature fluctuation, poor comfort and high energy consumption caused by direct adjustment from full internal circulation to full external circulation in the related technology.
As shown in fig. 1, the air conditioner control method in the embodiment of the present application specifically includes the following steps:
s1, acquiring the temperature of the front windshield and the dew point temperature, and taking the difference value between the temperature of the front windshield and the dew point temperature as a judgment temperature difference.
S2, three unconnected temperature difference intervals under the environment working condition of the vehicle are obtained, and the second temperature difference interval is positioned between the low end value of the first temperature difference interval and the high end value of the third temperature difference interval; a fogging risk interval is formed between the low end values of two adjacent temperature difference intervals, and an interval smaller than or equal to the low end value of the third temperature difference interval is a fogging risk interval.
The environment working conditions of the vehicle comprise the temperature outside the vehicle, the sunlight intensity and the like.
S3, selecting a corresponding circulation mode and an air outlet mode according to the fogging risk interval in which the initial value of the judgment temperature difference is located.
In this embodiment, each fogging risk section corresponds to a circulation mode and an air outlet mode of an air conditioner, respectively.
S4, when the judging temperature difference is reduced to the high end value of any fog risk interval, switching to a circulation mode and an air outlet mode corresponding to the fog risk interval.
S5, when the judging temperature difference is increased from the low end value of any temperature difference interval to the high end value of the judging temperature difference interval, switching to a circulation mode and an air outlet mode corresponding to the fogging risk interval where the high end value is located.
According to the air conditioner control method, the front windshield temperature and the dew point temperature are obtained, the difference value of the front windshield temperature and the dew point temperature is used as the judgment temperature difference, and after three unconnected temperature difference intervals and a plurality of fogging risk intervals under the environment working condition of a vehicle are obtained, a corresponding circulation mode and an air outlet mode can be selected according to the fogging risk interval where the initial value of the judgment temperature difference is located; switching to a circulation mode and an air outlet mode corresponding to the fog risk interval when judging that the temperature difference is reduced to the high end value of any fog risk interval; when judging that the temperature difference is increased from the low end value of any temperature difference section to the high end value of the temperature difference section, switching to a circulation mode and an air outlet mode corresponding to the fogging risk section where the high end value is positioned; therefore, corresponding circulation modes and air outlet modes are formulated for different fogging risk intervals, and the circulation modes and the air outlet modes are not frequently switched in a short time, so that the temperature fluctuation in the vehicle can be reduced, the riding comfort of passengers is ensured, and the energy consumption of an air conditioner can be greatly reduced.
In this embodiment, the above-described fogging risk sections include a low fogging risk section, a medium fogging risk section, and a high fogging risk section.
And a low-fogging risk section is formed between the low end value of the second temperature difference section and the low end value of the first temperature difference section, a medium-fogging risk section is formed between the low end value of the third temperature difference section and the low end value of the second temperature difference section, and the section smaller than or equal to the low end value of the third temperature difference section is a high-fogging risk section.
Based on the above embodiment, in this embodiment, the circulation mode corresponding to the low risk zone of fogging is a first compensation circulation mode, and the corresponding air-out mode is a comfort air-out mode; the compensation cycle mode is: the air inlet of the air conditioner is in an internal and external circulation mixed air mode. Optionally, the comfort air-out mode is a blowing mode, a foot blowing mode and the like controlled according to actual conditions.
When the initial value of the temperature difference is in the low-fogging risk interval, the air conditioner is controlled to be in a first compensation circulation mode and a comfortable air outlet mode.
The circulation mode corresponding to the medium-fogging risk interval is a second compensation circulation mode, and the corresponding air outlet mode is a defrosting mode; the internal circulation proportion of the second compensation circulation mode is smaller than that of the first compensation circulation mode.
And when the initial value of the temperature difference is in the medium-fogging risk interval, controlling the air conditioner to be in a second compensation circulation mode and a defrosting mode.
The circulation mode corresponding to the high-fogging risk interval is an external circulation mode, and the corresponding air outlet mode is a defrosting mode. And when the initial value of the temperature difference is in the high-fogging risk interval, controlling the air conditioner to be in an external circulation mode and a defrosting mode.
In this embodiment, the internal circulation mode is that the air conditioner pumps air in the vehicle, and air flow is conveyed into the vehicle from an air outlet of the air conditioner through equipment such as an air conditioning box body and an air duct, so that air flow conveying circulation is formed in the vehicle. The external circulation mode is that the air conditioner extracts air outside the vehicle, air flow is conveyed into the vehicle from an air outlet of the air conditioner through equipment such as an air conditioning box body and an air duct, and meanwhile, air accumulated in the vehicle is released outside the vehicle through a pressure relief opening of the vehicle, so that air flow conveying circulation is formed between the outside of the vehicle and the inside of the vehicle.
Optionally, in the step S2, three unconnected temperature difference intervals under the environmental condition where the vehicle is located are obtained, and the method specifically includes the following steps:
first, the current outside temperature, the sunlight intensity, and the front windshield relative humidity are acquired.
Optionally, an off-board temperature sensor, a sun light sensor and a temperature and humidity sensor arranged at the front windshield are arranged on the vehicle; the sunlight sensor can collect current sunlight intensity, the temperature sensor can collect the temperature outside the automobile, the temperature sensor can collect the surface temperature of the front windshield and the relative humidity of the front windshield, and then the dew point temperature can be calculated and obtained according to the collected temperature of the front windshield and the relative humidity of the front windshield.
And then, looking up a table based on a pre-stored relation table to obtain a first compensation value, a second compensation value and a third compensation value under the conditions of the outside temperature, the sunlight intensity and the relative humidity of the front windshield. The first temperature difference interval can be determined by the first compensation value, the second temperature difference interval can be determined by the second compensation value, and the third temperature difference interval can be determined by the third compensation value.
Alternatively, the above-described relationship table may be obtained by bench test. Specifically, three temperature difference compensation values of the fog risks with different degrees are calibrated sequentially under different outside temperatures, sunlight intensities and relative humidity of the front windshield, and are used as a first compensation value, a second compensation value and a third compensation value under the current outside temperatures, sunlight intensities and relative humidity of the front windshield.
In this embodiment, the relative humidity of the front windshield to be calibrated includes 25%, 50%, 75% and 100%, that is, each relative humidity is calibrated with three temperature difference compensation values under the same outside temperature and sunlight intensity. In the control process of the present embodiment, the front windshield relative humidity is determined based on the environment, and the change is small.
Specifically, the sum of the first compensation value and the first preset value is taken as a low end value, namely a first limit value, of the first temperature difference interval, and the sum of the first compensation value and the second preset value is taken as a high end value, namely a first exit limit value, of the first temperature difference interval.
The sum of the second compensation value and the first preset value is used as a low end value, namely a second limit value, of the second temperature difference interval, and the sum of the second compensation value and the second preset value is used as a high end value, namely a second exit limit value, of the second temperature difference interval.
The sum of the third compensation value and the first preset value is used as a low end value of a third temperature difference interval, namely a third limit value, and the sum of the third compensation value and the second preset value is used as a high end value of the third temperature difference interval, namely a third exit limit value.
In this embodiment, the low risk zone of fogging is: a section greater than the second limit and not greater than the first limit; the above-mentioned medium fogging risk interval is: a section greater than the third limit and not greater than the second limit; the high-fogging risk interval is as follows: a section less than or equal to the third limit value.
Optionally, the first preset value is 1-3 ℃. Preferably, the first preset value is 1 ℃.
Optionally, the second preset value is 3-6 ℃. Preferably, the second preset value is 3 ℃.
Preferably, when the initial value of the determined temperature difference is greater than the low end value of the first temperature difference section, the air conditioner is controlled to be in an internal circulation mode and a comfort air outlet mode. When the initial value of the temperature difference is larger than the first limit value, the air conditioner is controlled to be in an internal circulation mode and a comfortable air outlet mode.
Further, when the temperature difference is smaller than the first limit value and is higher than the first exit limit value, the air conditioner can be controlled to be in an internal circulation mode and a comfortable air outlet mode.
On the basis of the above embodiment, in this embodiment, before the front windshield temperature and the dew point temperature are obtained, the method further includes the following steps:
judging whether the air conditioner is set to an AUTO running mode, if so, acquiring the temperature of the front windshield and the dew point temperature; otherwise, the front windshield temperature and the dew point temperature are not obtained. By this judgment, it is ensured that the control method is effective only when the vehicle air conditioner is set to the AUTO operation mode, that is, the manual mode is set to be accurate by the user, so that the user demand is not deviated by the control method.
The air conditioner control method specifically comprises the following steps:
A1. the vehicle is electrified, and the air conditioner is started and set to be in an AUTO running mode;
A2. collecting vehicle information, including the temperature outside the vehicle, the sunlight intensity and the relative humidity of the front windshield, and determining a first limit value, a second limit value and a third limit value, and a first exit limit value, a second exit limit value and a third exit limit value, namely three unconnected temperature difference intervals and three fogging risk intervals under the current environment working condition of the vehicle;
A3. calculating the difference between the temperature of the front windshield and the dew point temperature to be used as a judgment temperature difference;
A4. selecting a corresponding circulation mode and an air outlet mode according to a fogging risk interval in which the initial value of the temperature difference is judged;
A5. when judging that the temperature difference is reduced to the high end value of any fog risk interval, switching to a circulation mode and an air outlet mode corresponding to the fog risk interval;
A6. when the temperature difference is judged to be increased from the low end value of any temperature difference interval to the high end value of the temperature difference interval, switching to a circulation mode and an air outlet mode corresponding to the fogging risk interval where the high end value is positioned.
Specifically, when the initial value of the temperature difference is judged to be in a low-fogging risk interval, the air conditioner control device automatically starts the electric compressor or the PTC heating element according to the current working condition, and controls the air conditioner to be in a first compensation circulation mode and a comfort air outlet mode, namely, a circulation air door is started to a first designated position, and air outlet is set according to comfort; if the temperature difference is judged to be increased to the first exit limit value, the air conditioner control device controls the electric compressor or the PTC heating element according to the current working condition, and controls the air conditioner to be switched into an internal circulation mode and a comfortable air outlet mode; and if the temperature difference is judged to be reduced to the second limit value, controlling the air conditioner to switch to a second compensation circulation mode and a defrosting mode until the temperature difference is judged to be increased to the second exit limit value, and controlling the air conditioner to switch to a first compensation circulation mode and a comfortable air outlet mode.
Alternatively, the PTC heating elements comprise water heating PTC heating elements and wind heating PTC heating elements, operating with high voltage power of the vehicle, mainly providing heating to the passenger compartment. The motor-driven compressor operates using high voltage power of the vehicle and mainly provides refrigeration for the passenger compartment.
When the initial value of the temperature difference is judged to be in the medium-fogging risk interval, the air conditioner control device automatically starts the electric compressor or the PTC heating element according to the current working condition, and controls the air conditioner to be in a second compensation circulation mode and a defrosting mode, namely, the circulation air door is started to a second designated position, and air is discharged according to the defrosting mode; if the temperature difference is judged to be increased to the second exit limit value, the air conditioner is controlled to be switched into a first compensation circulation mode and a comfort air outlet mode; and if the temperature difference is judged to be reduced to the third limit value, controlling the air conditioner to be switched to the external circulation mode and the defrosting mode, and controlling the air conditioner to be switched to the second compensation circulation mode and the defrosting mode until the temperature difference is judged to be increased to the third exit limit value.
When the initial value of the temperature difference is judged to be in a high-fogging risk interval, the air conditioner control device automatically starts the electric compressor or the PTC heating element according to the current working condition and controls the air conditioner to be in an external circulation mode and a defrosting mode; if the temperature difference is judged to be increased to the third exit limit value, the air conditioner is controlled to be switched into a second compensation circulation mode and a defrosting mode; if the temperature difference is judged to be continuously increased to the second exit limit value, the air conditioner is controlled to be switched into a first compensation circulation mode and a comfortable air outlet mode; and if the temperature difference is judged to be continuously increased to the first exit limit value, controlling the air conditioner to be switched into an internal circulation mode and a comfortable air outlet mode.
The embodiment of the application also provides an air conditioner control device based on the method, which comprises a first acquisition module, a second acquisition module and a control module.
The first acquisition module is used for acquiring the front windshield temperature and the dew point temperature, and taking the difference value between the front windshield temperature and the dew point temperature as a judgment temperature difference.
The second acquisition module is used for acquiring three unconnected temperature difference intervals and a plurality of fogging risk intervals under the environment working condition of the vehicle.
The control module is used for selecting a corresponding circulation mode and an air outlet mode according to the fogging risk interval where the initial value of the judgment temperature difference is located.
The control module is further used for switching to a circulation mode and an air outlet mode corresponding to any fog risk interval when the judging temperature difference is reduced to the high end value of the fog risk interval; and when the judging temperature difference is increased from the low end value of any temperature difference section to the high end value of the judging temperature difference section, switching to a circulation mode and an air outlet mode corresponding to the fogging risk section where the high end value is positioned.
The air conditioner control device is suitable for the air conditioner control methods, takes the judgment temperature difference as main judgment and adjustment, combines the environmental conditions of the vehicle to judge whether the air conditioner has a fog risk in real time, realizes the reasonable utilization of various circulation modes of the air conditioner on the premise of not causing the fog of the vehicle, reduces the external circulation use proportion according to different environmental conditions, not only can prevent the fog of a front windshield, but also can automatically adjust the air outlet mode, reduces the manual operation of a user, and can also achieve the aim of reducing the energy consumption of the air conditioner.
The air conditioner control device of the embodiment can obtain different energy-saving effects on different vehicle types, and the same vehicle type has different energy-saving effects under environmental differences such as different seasons. In autumn and winter, the internal circulation mode is taken as a main circulation mode, and experiments show that the energy-saving effect is between 100W and 1000W according to different environments and vehicle working conditions.
As shown in fig. 2, the embodiment of the application further provides an air conditioner control system, which comprises the air conditioner control device, a sunlight sensor, a temperature and humidity sensor, an off-vehicle temperature sensor and a vehicle body controller.
The sunlight sensor is used for collecting sunlight intensity and sending the sunlight intensity to the vehicle body controller; the temperature and humidity sensor is used for acquiring the temperature of the front windshield and the relative humidity of the front windshield, acquiring the dew point temperature based on the temperature of the front windshield and the relative humidity of the front windshield and sending the dew point temperature to the vehicle body controller; the temperature sensor outside the vehicle is used for collecting the temperature outside the vehicle and sending the temperature to the air conditioner control device.
The vehicle body controller is used for sending the sunlight intensity, the front windshield temperature, the front windshield relative humidity and the dew point temperature to the air conditioner control device through the CAN. The air conditioner control device is used for performing corresponding control based on the acquired data.
In this embodiment, the air conditioner control system further includes an electric compressor and a PTC heating element, and the air conditioner control apparatus is further configured to perform corresponding control on the electric compressor and the PTC heating element based on the acquired data.
Optionally, an embodiment of the present application further provides an electronic device for controlling an air conditioner, where the electronic device includes a processor and a memory, and the processor executes codes in the memory to implement the following air conditioner control method:
acquiring the temperature of the front windshield and the dew point temperature, and taking the difference value between the temperature of the front windshield and the dew point temperature as a judgment temperature difference;
three unconnected temperature difference intervals under the environment working condition of the vehicle are obtained, and the second temperature difference interval is positioned between the low end value of the first temperature difference interval and the high end value of the third temperature difference interval; a fogging risk interval is formed between the low end values of two adjacent temperature difference intervals, and an interval smaller than the low end value of the third temperature difference interval is a fogging risk interval;
selecting a corresponding circulation mode and an air outlet mode according to the fogging risk interval in which the initial value of the judgment temperature difference is positioned;
when the judging temperature difference is reduced to the high end value of any fog risk interval, switching to a circulation mode and an air outlet mode corresponding to the fog risk interval;
when the judging temperature difference is increased from the low end value of any temperature difference section to the high end value of the temperature difference section, switching to a circulation mode and an air outlet mode corresponding to the fogging risk section where the high end value is positioned.
Optionally, the execution of the codes in the memory by the processor may further implement the following air conditioner control method:
and a low-fogging risk section is formed between the low end value of the second temperature difference section and the low end value of the first temperature difference section, a medium-fogging risk section is formed between the low end value of the third temperature difference section and the low end value of the second temperature difference section, and the section smaller than or equal to the low end value of the third temperature difference section is taken as a high-fogging risk section.
Optionally, the execution of the codes in the memory by the processor may further implement the following air conditioner control method:
the circulation mode corresponding to the low-fogging risk interval is a first compensation circulation mode, and the corresponding air outlet mode is a comfort air outlet mode; the compensation cycle mode is: the air inlet of the air conditioner is in an internal and external circulation mixed air mode;
the circulation mode corresponding to the medium-fogging risk interval is a second compensation circulation mode, and the corresponding air outlet mode is a defrosting mode; the internal circulation proportion of the second compensation circulation mode is smaller than that of the first compensation circulation mode;
the circulation mode corresponding to the high-fogging risk interval is an external circulation mode, and the corresponding air outlet mode is a defrosting mode.
Optionally, the execution of the codes in the memory by the processor may further implement the following air conditioner control method:
the method for acquiring three unconnected temperature difference intervals under the environmental working condition of the vehicle specifically comprises the following steps:
acquiring the current temperature outside the vehicle, the sunlight intensity and the relative humidity of the front windshield;
based on a pre-stored relation table, looking up a table to obtain a first compensation value, a second compensation value and a third compensation value under the conditions of the outside temperature, the sunlight intensity and the relative humidity of the front windshield;
taking the sum of the first compensation value and a first preset value as a low end value of a first temperature difference interval, and taking the sum of the first compensation value and a second preset value as a high end value of the first temperature difference interval;
taking the sum of the second compensation value and the first preset value as a low end value of a second temperature difference interval, and taking the sum of the second compensation value and the second preset value as a high end value of the second temperature difference interval;
and taking the sum of the third compensation value and the first preset value as a low end value of a third temperature difference interval, and taking the sum of the third compensation value and the second preset value as a high end value of the third temperature difference interval.
Optionally, the execution of the codes in the memory by the processor may further implement the following air conditioner control method:
and when the initial value of the judgment temperature difference is larger than the high end value of the first temperature difference section, controlling the air conditioner to be in an internal circulation mode and a comfort air outlet mode.
Optionally, the execution of the codes in the memory by the processor may further implement the following air conditioner control method:
before the front windshield temperature and the dew point temperature are obtained, judging whether the air conditioner is set to an AUTO running mode or not, and if not, not obtaining the front windshield temperature and the dew point temperature.
Preferably, the execution of the codes in the memory by the processor may also implement other steps in the air conditioner control method.
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
It should be noted that in this application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. An air conditioner control method, characterized in that it comprises the steps of:
acquiring the temperature of a front windshield and the dew point temperature, and taking the difference value between the temperature of the front windshield and the dew point temperature as a judgment temperature difference;
three unconnected temperature difference intervals under the environment working condition of the vehicle are obtained, and the second temperature difference interval is positioned between the low end value of the first temperature difference interval and the high end value of the third temperature difference interval; a fogging risk interval is formed between the low end values of two adjacent temperature difference intervals, and an interval smaller than or equal to the low end value of the third temperature difference interval is a fogging risk interval;
selecting a corresponding circulation mode and an air outlet mode according to the fogging risk interval in which the initial value of the judgment temperature difference is positioned;
when the judging temperature difference is reduced to the high end value of any fog risk interval, switching to a circulation mode and an air outlet mode corresponding to the fog risk interval;
when the judging temperature difference is increased from the low end value of any temperature difference section to the high end value of the judging temperature difference section, switching to a circulation mode and an air outlet mode corresponding to the fogging risk section where the high end value is positioned;
the method for acquiring three unconnected temperature difference intervals under the environmental working condition of the vehicle specifically comprises the following steps:
acquiring the current temperature outside the vehicle, the sunlight intensity and the relative humidity of the front windshield;
based on a pre-stored relation table, looking up a table to obtain a first compensation value, a second compensation value and a third compensation value of the outside temperature, the sunlight intensity and the relative humidity of the front windshield;
taking the sum of the first compensation value and a first preset value as a low end value of a first temperature difference interval, and taking the sum of the first compensation value and a second preset value as a high end value of the first temperature difference interval;
taking the sum of the second compensation value and the first preset value as a low end value of a second temperature difference interval, and taking the sum of the second compensation value and the second preset value as a high end value of the second temperature difference interval;
and taking the sum of the third compensation value and the first preset value as a low end value of a third temperature difference interval, and taking the sum of the third compensation value and the second preset value as a high end value of the third temperature difference interval.
2. The air conditioner control method as set forth in claim 1, wherein: and a low-fogging risk interval is formed between the low end value of the second temperature difference interval and the low end value of the first temperature difference interval, a medium-fogging risk interval is formed between the low end value of the third temperature difference interval and the low end value of the second temperature difference interval, and the interval smaller than or equal to the low end value of the third temperature difference interval is a high-fogging risk interval.
3. The air conditioner control method as set forth in claim 2, wherein:
the circulation mode corresponding to the low-fogging risk interval is a first compensation circulation mode, and the corresponding air outlet mode is a comfort air outlet mode; the compensation cycle mode is: the air inlet of the air conditioner is in an internal and external circulation mixed air mode;
the circulation mode corresponding to the medium fogging risk interval is a second compensation circulation mode, and the corresponding air outlet mode is a defrosting mode; the internal circulation proportion of the second compensation circulation mode is smaller than that of the first compensation circulation mode;
the circulation mode corresponding to the high-fogging risk interval is an external circulation mode, and the corresponding air outlet mode is a defrosting mode.
4. The air conditioner control method as set forth in claim 1, wherein: the first preset value is 1-3 ℃.
5. The air conditioner control method as set forth in claim 1, wherein: the second preset value is 3-6 ℃.
6. The air conditioner control method as set forth in claim 1, wherein: when the initial value of the judgment temperature difference is larger than the low end value of the first temperature difference section, the air conditioner is controlled to be in an internal circulation mode and a comfort air outlet mode.
7. The air conditioner control method according to claim 1, characterized by further comprising, before the front windshield temperature and the dew point temperature are obtained:
and judging whether the air conditioner is set to an AUTO running mode, and if not, not acquiring the front windshield temperature and the dew point temperature.
8. An air conditioner control device based on the method of claim 1, characterized by comprising:
the first acquisition module is used for acquiring the front windshield temperature and the dew point temperature, and taking the difference value between the front windshield temperature and the dew point temperature as a judgment temperature difference;
the second acquisition module is used for acquiring three unconnected temperature difference intervals and a plurality of fogging risk intervals under the environment working condition of the vehicle;
the control module is used for selecting a corresponding circulation mode and an air outlet mode according to the fogging risk interval in which the initial value of the judging temperature difference is positioned;
the control module is further used for switching to a circulation mode and an air outlet mode corresponding to any fog risk interval when the judging temperature difference is reduced to the high end value of the fog risk interval; and when the judging temperature difference is increased from the low end value of any temperature difference section to the high end value of the judging temperature difference section, switching to a circulation mode and an air outlet mode corresponding to the fogging risk section where the high end value is positioned.
9. An air conditioner control system, characterized in that it includes the air conditioner control device according to claim 8, further comprising:
a sunlight sensor for collecting sunlight intensity;
the temperature and humidity sensor is used for acquiring the temperature and the relative humidity of the front windshield and acquiring the dew point temperature based on the temperature and the relative humidity of the front windshield;
the vehicle exterior temperature sensor is used for acquiring the vehicle exterior temperature and sending the vehicle exterior temperature to the air conditioner control device;
and the vehicle body controller is used for sending the sunlight intensity, the front windshield temperature, the front windshield relative humidity and the dew point temperature to the air conditioner control device.
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| CN114312673B (en) * | 2022-02-09 | 2023-10-17 | 一汽解放汽车有限公司 | Device and method for preventing and controlling frost and fog of vehicle and vehicle |
| CN114274736B (en) * | 2022-02-16 | 2023-11-21 | 一汽解放汽车有限公司 | Anti-fog control method, device, equipment and storage medium for automobile air conditioner |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6155061A (en) * | 1999-12-23 | 2000-12-05 | Ford Motor Company | Method of determining windshield fogging based on inference from presence of rain |
| JP2010167895A (en) * | 2009-01-22 | 2010-08-05 | Sanden Corp | Air conditioner for vehicle |
| CN111186277A (en) * | 2020-01-16 | 2020-05-22 | 上汽大众汽车有限公司 | Method and device for monitoring air quality in vehicle |
| CN112109522A (en) * | 2020-09-25 | 2020-12-22 | 北京新能源汽车股份有限公司 | Control method, electric vehicle, and storage medium |
| CN112248746A (en) * | 2020-10-14 | 2021-01-22 | 东风汽车集团有限公司 | Automobile air conditioning system and control method and control device of mode air door of automobile air conditioning system |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7392838B2 (en) * | 2004-06-30 | 2008-07-01 | Honda Motor Co., Ltd. | System and method for vehicle defogging condition calculation and control |
| US7690421B2 (en) * | 2007-08-10 | 2010-04-06 | Honda Motor Co., Ltd. | Low humidity detection system and method thereof |
-
2021
- 2021-08-18 CN CN202110950513.9A patent/CN113682104B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6155061A (en) * | 1999-12-23 | 2000-12-05 | Ford Motor Company | Method of determining windshield fogging based on inference from presence of rain |
| JP2010167895A (en) * | 2009-01-22 | 2010-08-05 | Sanden Corp | Air conditioner for vehicle |
| CN111186277A (en) * | 2020-01-16 | 2020-05-22 | 上汽大众汽车有限公司 | Method and device for monitoring air quality in vehicle |
| CN112109522A (en) * | 2020-09-25 | 2020-12-22 | 北京新能源汽车股份有限公司 | Control method, electric vehicle, and storage medium |
| CN112248746A (en) * | 2020-10-14 | 2021-01-22 | 东风汽车集团有限公司 | Automobile air conditioning system and control method and control device of mode air door of automobile air conditioning system |
| 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 |
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