CN108944345B - Vehicle-mounted air purification system and method - Google Patents
Vehicle-mounted air purification system and method Download PDFInfo
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- CN108944345B CN108944345B CN201810981514.8A CN201810981514A CN108944345B CN 108944345 B CN108944345 B CN 108944345B CN 201810981514 A CN201810981514 A CN 201810981514A CN 108944345 B CN108944345 B CN 108944345B
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- 238000000034 method Methods 0.000 title claims abstract description 66
- 238000004887 air purification Methods 0.000 title claims abstract description 17
- 238000000746 purification Methods 0.000 claims description 76
- 238000001514 detection method Methods 0.000 claims description 24
- 238000004891 communication Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
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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
- B60H1/00735—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
- B60H1/008—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 air quality
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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
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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
- B60H3/00—Other air-treating devices
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- Air-Conditioning For Vehicles (AREA)
Abstract
The invention relates to the technical field of automobile air conditioners, and discloses a vehicle-mounted air purification system and a method, wherein the method comprises the following steps: s1, detecting whether the PM2.5 value in the vehicle is larger than a first preset value or not, if so, purifying the PM2.5 in the vehicle through a vehicle-mounted air conditioner, and if not, executing a step S2; s2, detecting whether the PM2.5 value outside the vehicle is larger than a first preset value or not, if so, purifying the PM2.5 inside the vehicle through an internal circulation mode with set time length, and starting the PM2.5 purifying function of the vehicle-mounted air conditioner when the vehicle is in the internal circulation mode.
Description
Technical Field
The invention relates to the technical field of automobile air conditioners and provides a vehicle-mounted air purification system and a vehicle-mounted air purification method.
Background
The traditional automatic air conditioner for the automobile can only automatically operate by setting the temperature, the air outlet mode and the air volume according to the parameters of three-season comfort calibration of the air conditioner in the operation process. When the automobile runs to a construction site or the air quality of the local area is poor, the long-time external circulation can cause the PM2.5 and harmful gas content in the automobile to rise.
Disclosure of Invention
The invention provides a vehicle-mounted air purification system, aiming at improving the quality of air in a vehicle and simultaneously considering the driving safety.
In order to achieve the above object, the present invention provides a vehicle-mounted air purification system, including:
the vehicle-mounted air conditioner has a PM2.5 purification function;
the PM2.5 sensor I is arranged at the air inlet of the internal circulation;
a PM2.5 sensor II arranged at the position of the external circulation air inlet;
a temperature sensor arranged outside the vehicle;
and the vehicle control unit is in communication connection with the vehicle-mounted air conditioner, the PM2.5 sensor I, the PM2.5 sensor II and the temperature sensor.
In order to achieve the above object, the present invention provides a vehicle-mounted air purification method, including the steps of:
s1, detecting whether the PM2.5 value in the vehicle is larger than a first preset value or not, if so, purifying the PM2.5 in the vehicle through a vehicle-mounted air conditioner, and if not, executing a step S2;
s2, detecting whether the PM2.5 value outside the vehicle is larger than a first preset value or not, if so, purifying the PM2.5 inside the vehicle through an internal circulation mode with set time length, and when the PM2.5 is in the internal circulation mode, starting the PM2.5 purifying function of the vehicle-mounted air conditioner.
Further, the method for purifying the PM2.5 in the vehicle in step S1 includes:
namely a first PM2.5 purification method during fogging and a first PM2.5 purification method during non-fogging;
when the temperature outside the vehicle is higher than the critical temperature of the fog point, adopting a PM2.5 purification method I when the fog does not appear;
and when the temperature outside the vehicle is less than or equal to the critical temperature of the fog point, adopting a first PM2.5 purification method during fogging.
Further, the first PM2.5 purification method without fogging includes the following steps:
s11a, prompting to start the PM2.5 purification function of the vehicle-mounted air conditioner and closing the vehicle window when the PM2.5 value in the vehicle is larger than a first preset value;
s12a, when the PM2.5 purification function of the vehicle-mounted air conditioner is started, detecting whether the current air circulation mode is an internal circulation mode or an external circulation mode;
s13a, if the external circulation mode is set, switching to the internal circulation mode;
s14a, detecting the PM2.5 value in the vehicle at regular time, and returning to the initial state until the PM2.5 value is smaller than a third preset value or the time length of the vehicle in the internal circulation mode reaches a first set time length.
Further, the first PM2.5 purification method during fogging comprises the following steps:
s11b, prompting to start the PM2.5 purification function of the vehicle-mounted air conditioner and closing the vehicle window when the PM2.5 value in the vehicle is larger than a first preset value;
s12b, when the PM2.5 purification function of the vehicle-mounted air conditioner is started, detecting whether the current air circulation mode is an internal circulation mode or an external circulation mode;
s13b, if the compressor is in the external circulation mode, detecting whether the compressor is started, if the detection result is yes, switching to the internal circulation mode, if the detection result is no, detecting whether the PM2.5 value in the vehicle is larger than a second preset value, and if the detection result is yes, switching to the internal circulation mode;
s14b, detecting the PM2.5 value in the vehicle at regular time, and returning to the initial state until the PM2.5 value is smaller than a third preset value or the time length of the vehicle in the internal circulation mode reaches a set time length.
Further, the air cleaning method for the PM2.5 in the vehicle in step S2 includes:
a second PM2.5 purification method during fogging and a second PM2.5 purification method during non-fogging;
when the temperature outside the vehicle is higher than the critical temperature of the fog point, adopting a second PM2.5 purification method when the fog does not appear;
and when the temperature outside the vehicle is less than or equal to the critical temperature of the fog point, adopting a second PM2.5 purification method during fogging.
Further, the second PM2.5 reduction method without fogging includes the steps of:
s21a, detecting whether the current air circulation mode is an internal circulation mode or an external circulation mode, if the current air circulation mode is the internal circulation mode, starting a PM2.5 purification function of the vehicle-mounted air conditioner, and if the current air circulation mode is the external circulation mode, switching to the internal circulation mode, and starting the PM2.5 purification function of the vehicle-mounted air conditioner;
s22a, after the time length is set, detecting a PM2.5 value outside the automobile;
s23a, if the PM2.5 value outside the automobile is larger than the first preset value, returning to the step S22a,
s24a, when the detection frequency of the PM2.5 value outside the automobile reaches the first time threshold value, the external circulation is forced to set the time length, the internal circulation mode is switched back, the step S22a is returned, and the external circulation mode is switched until the PM2.5 value outside the automobile is smaller than or equal to the first preset value.
Further, the second PM2.5 purification method during fogging includes the following steps:
s21b, detecting whether the current air circulation mode is an internal circulation mode or an external circulation mode, if the current air circulation mode is the internal circulation mode, starting a PM2.5 purification function of the vehicle-mounted air conditioner, and if the current air circulation mode is the external circulation mode, executing a step S22 b;
s22b, detecting whether the compressor is started or not, if so, switching to an internal circulation mode, and starting a PM2.5 purification function of the vehicle-mounted air conditioner;
s23b, detecting a PM2.5 value outside the vehicle after setting the time length;
s24b, if the PM2.5 value outside the automobile is larger than the first preset value, returning to the step S23b until the PM2.5 value outside the automobile is smaller than or equal to the first preset value, or the detection frequency of the PM2.5 value outside the automobile reaches the second frequency threshold value, and switching to an outer loop.
Further, if the compressor is in the off state in step S22b, the method for reducing PM2.5 during fogging includes the following steps:
detecting whether the PM2.5 value in the vehicle is larger than a second preset value or not, if so, switching to an internal circulation mode, starting a PM2.5 purification function of the vehicle-mounted air conditioner, and switching to an external circulation mode after setting time; if the detection result is negative, the external circulation mode is kept unchanged.
The invention aims to solve the problem of overhigh content of PM2.5 in a vehicle by detecting the quality of the air environment inside and outside the vehicle, and ensure driving safety as much as possible while reducing the content of PM2.5 in the vehicle.
Drawings
FIG. 1 is a schematic structural diagram of a vehicle-mounted purification system provided by an embodiment of the invention;
FIG. 2 is a flowchart of a vehicle-mounted purification method when the PM2.5 in the vehicle is greater than a preset value according to an embodiment of the invention;
fig. 3 is a flowchart of a vehicle-mounted purification method when PM2.5 outside the vehicle is greater than a preset value according to an embodiment of the present invention.
Detailed Description
The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an on-board purification system according to an embodiment of the present invention, and for convenience of description, only relevant portions of the present invention are shown.
The system comprises:
the vehicle-mounted air conditioner has a PM2.5 purification function;
the PM2.5 sensor I is arranged at the air inlet of the internal circulation;
a PM2.5 sensor II arranged at the position of the external circulation air inlet;
a temperature sensor arranged outside the vehicle;
the vehicle control unit is in communication connection with the vehicle-mounted air conditioner, the PM2.5 sensor I, the PM2.5 sensor II and the temperature sensor, and a filter element of the vehicle-mounted air conditioner is a double-effect PM2.5 filter element.
The system further comprises: and the manual PM2.5 operating button is in communication connection with the whole vehicle controller.
In the embodiment of the invention, the vehicle-mounted purification method comprises the following steps:
s1, detecting whether the PM2.5 value in the vehicle is larger than a first preset value or not, if so, purifying the PM2.5 in the vehicle through a vehicle-mounted air conditioner, and if not, executing a step S2;
s2, detecting whether the PM2.5 value outside the vehicle is larger than a first preset value or not, if so, purifying the PM2.5 inside the vehicle through an internal circulation mode with set time length, and when the PM2.5 is in the internal circulation mode, starting the PM2.5 purifying function of the vehicle-mounted air conditioner.
The first preset value in the invention is 115, namely when a PM2.5 sensor at an air inlet of the internal circulation detects that PM2.5 in a vehicle is larger than 115, the PM2.5 purification function of the vehicle-mounted air conditioner is started to reduce the PM2.5 in the vehicle.
Fig. 2 is a flowchart of a vehicle-mounted purification method when the in-vehicle PM2.5 is greater than a preset value according to an embodiment of the present invention, and the in-vehicle PM2.5 purification method in step 1 includes two methods:
namely a first PM2.5 purification method during fogging and a first PM2.5 purification method during non-fogging;
when the temperature outside the vehicle is higher than the critical temperature of the fog point, adopting a PM2.5 purification method I when the fog does not appear;
and when the temperature outside the vehicle is less than or equal to the critical temperature of the fog point, adopting a first PM2.5 purification method during fogging. The critical temperature of the fog point is set to be 8 ℃, when the external temperature is lower than 8 ℃, the front windshield is judged to be fogged, the front windshield is not suitable to be in an internal circulation state for a long time, and the front windshield is suitable to be demisted through an external circulation state.
In the embodiment of the invention, the first PM2.5 purification method during non-fogging comprises the following steps:
s11a, prompting to start the PM2.5 purification function of the vehicle-mounted air conditioner and closing the vehicle window when the PM2.5 value in the vehicle is larger than a first preset value;
s12a, when the PM2.5 purification function of the vehicle-mounted air conditioner is started, detecting whether the current air circulation mode is an internal circulation mode or an external circulation mode;
s13a, if the air circulation mode is in the external circulation mode, switching to the internal circulation mode, and if the air circulation mode is in the external circulation state, keeping the existing air circulation mode;
s14a, detecting the PM2.5 value in the vehicle at regular time, and returning to the initial state until the PM2.5 value is smaller than a third preset value or the time length of the vehicle in the internal circulation mode reaches a first set time length.
In the embodiment of the present invention, the third preset value is smaller than the first preset value, and a PM2.5 value harmful to the human body is lower than the preset value, and the third preset value can be understood as a PM2.5 value having little or no influence on the health of the human body, for example, the value of the third preset value is 75.
In the embodiment of the invention, the first PM2.5 purification method during fogging comprises the following steps:
s11b, prompting to start the PM2.5 purification function of the vehicle-mounted air conditioner and closing the vehicle window when the PM2.5 value in the vehicle is larger than a first preset value;
s12b, when the PM2.5 purification function of the vehicle-mounted air conditioner is started, detecting whether the current air circulation mode is an internal circulation mode or an external circulation mode;
s13b, if the vehicle is in an internal circulation state, keeping the existing air circulation mode, if the vehicle is in an external circulation mode, detecting whether the compressor is started, if the detection result is yes, switching to the internal circulation mode, if the detection result is no, detecting whether the PM2.5 value in the vehicle is larger than a second preset value, if the detection result is yes, switching to the internal circulation mode, and if the detection result is no, still keeping the external circulation mode;
s14b, detecting the PM2.5 value in the vehicle at regular time, and returning to the initial state until the PM2.5 value is smaller than a third preset value or the time length in the internal circulation mode reaches a set time length;
in the embodiment of the invention, the second preset value is larger than the first preset value, and the first preset value is larger than the third preset value.
In the embodiment of the present invention, in order to make the purifying effect of the vehicle air conditioner better, after step S11a or step S11b, the method further includes:
and S15, detecting whether the wind speed of the blower reaches a wind speed threshold value, and if the detection result is negative, controlling the wind speed of the blower to reach the wind speed threshold value.
The wind speed threshold in the embodiment of the invention is that the wind speed of the blower reaches four gears and above.
When a PM2.5 purification instruction sent by a manual PM2.5 operation button is received, the vehicle control unit detects a PM2.5 value in the vehicle; if the PM2.5 value is larger than a third set value, starting a PM2.5 purification function of the vehicle-mounted air conditioner, and simultaneously prompting to close the vehicle window; detecting whether the automobile is in an internal circulation state or not, if the detection result is negative, detecting whether the temperature outside the automobile is greater than the critical temperature of the fog point or not, if the detection result is negative, detecting whether the compressor is started or not, if the compressor is started, switching to an internal circulation mode, if the compressor is started, detecting whether the PM2.5 value inside the automobile is greater than a second preset value or not, if the detection result is positive, switching to the internal circulation mode, and if the detection result is negative, still maintaining the external circulation mode; detecting the PM2.5 value in the vehicle at regular time, and returning to the initial state until the PM2.5 value is smaller than a third preset value or the time length in the internal circulation mode reaches a set time length;
fig. 3 is a flowchart of a vehicle-mounted purification method when the PM2.5 outside the vehicle is greater than a preset value according to an embodiment of the present invention, and the air purification method for the PM2.5 inside the vehicle in step S2 includes:
a second PM2.5 purification method during fogging and a second PM2.5 purification method during non-fogging;
when the temperature outside the vehicle is higher than the critical temperature of the fog point, adopting a second PM2.5 purification method when the fog does not appear;
and when the temperature outside the vehicle is less than or equal to the critical temperature of the fog point, adopting a second PM2.5 purification method during fogging.
In the embodiment of the present invention, the second PM2.5 reduction method when fogging does not include the steps of:
s21a, detecting whether the current air circulation mode is an internal circulation mode or an external circulation mode, if the current air circulation mode is the internal circulation mode, starting a PM2.5 purification function of the vehicle-mounted air conditioner, and if the current air circulation mode is the external circulation mode, switching to the internal circulation mode, and starting the PM2.5 purification function of the vehicle-mounted air conditioner;
s22a, after the time length is set, detecting a PM2.5 value outside the automobile;
s23a, if the PM2.5 value outside the automobile is larger than the first preset value, returning to the step S22a,
s24a, when the detection frequency of the PM2.5 value outside the automobile reaches the first time threshold value, the external circulation is forced to set the time length, the internal circulation mode is switched back, the step S22a is returned, and the external circulation mode is switched until the PM2.5 value outside the automobile is smaller than or equal to the first preset value.
In the embodiment of the invention, the second PM2.5 purification method during fogging comprises the following steps:
s21b, detecting whether the current air circulation mode is an internal circulation mode or an external circulation mode, if the current air circulation mode is the internal circulation mode, starting a PM2.5 purification function of the vehicle-mounted air conditioner, and if the current air circulation mode is the external circulation mode, executing a step S22 b;
s22b, detecting whether the compressor is started or not, if so, switching to an internal circulation mode, and starting a PM2.5 purification function of the vehicle-mounted air conditioner;
s23b, detecting a PM2.5 value outside the vehicle after setting the time length;
s24b, if the PM2.5 value outside the vehicle is larger than the first preset value, returning to the step S23b until the PM2.5 value outside the vehicle is smaller than or equal to the first preset value, or the detection frequency of the PM2.5 value outside the vehicle reaches a second frequency threshold value, and switching to an outer loop;
the second count threshold is less than the first count threshold.
In the embodiment of the present invention, if the compressor is in the off state in step S22b, the method for reducing PM2.5 during fogging includes the following steps:
detecting whether the PM2.5 value in the vehicle is larger than a second preset value or not, if so, switching to an internal circulation mode, starting a PM2.5 purification function of the vehicle-mounted air conditioner, and switching to an external circulation mode after setting time; if the detection result is negative, the external circulation mode is kept unchanged.
The invention aims to solve the problem of overhigh content of PM2.5 in a vehicle by detecting the quality of the air environment inside and outside the vehicle, and ensure driving safety as much as possible while reducing the content of PM2.5 in the vehicle.
It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.
Claims (5)
1. A vehicle-mounted air purification method is characterized in that a vehicle-mounted air purification system comprises: the vehicle-mounted air conditioner has a PM2.5 purification function; the PM2.5 sensor I is arranged at the air inlet of the internal circulation; a PM2.5 sensor II arranged at the position of the external circulation air inlet; a temperature sensor arranged outside the vehicle; the vehicle control unit is in communication connection with the vehicle-mounted air conditioner, the two PM2.5 sensors and the temperature sensor; the vehicle-mounted air purification method comprises the following steps:
s1, detecting whether the PM2.5 value in the vehicle is larger than a first preset value or not, if so, purifying the PM2.5 in the vehicle through a vehicle-mounted air conditioner, and if not, executing a step S2;
s2, detecting whether the PM2.5 value outside the vehicle is larger than a first preset value or not, if so, purifying the PM2.5 inside the vehicle through an internal circulation mode with set time length, and starting the PM2.5 purifying function of the vehicle-mounted air conditioner when the vehicle-mounted air conditioner is in the internal circulation mode;
the method for purifying the PM2.5 in the vehicle in the step S1 includes:
a first PM2.5 purification method during fogging and a first PM2.5 purification method during non-fogging;
when the temperature outside the vehicle is higher than the critical temperature of the fog point, adopting a PM2.5 purification method I when the fog does not appear;
when the temperature outside the vehicle is less than or equal to the critical temperature of the fog point, adopting a first PM2.5 purification method during fogging;
the PM2.5 purification method during non-fogging comprises the following steps:
s11a, prompting to start the PM2.5 purification function of the vehicle-mounted air conditioner and closing the vehicle window when the PM2.5 value in the vehicle is larger than a first preset value;
s12a, when the PM2.5 purification function of the vehicle-mounted air conditioner is started, detecting whether the current air circulation mode is an internal circulation mode or an external circulation mode;
s13a, if the external circulation mode is set, switching to the internal circulation mode;
s14a, detecting the PM2.5 value in the vehicle at regular time, and returning to the initial state until the PM2.5 value is less than or equal to a third preset value or the time length in the internal circulation mode reaches a first set time length;
the PM2.5 purification method during fogging comprises the following steps:
s11b, prompting to start the PM2.5 purification function of the vehicle-mounted air conditioner and closing the vehicle window when the PM2.5 value in the vehicle is larger than a first preset value;
s12b, when the PM2.5 purification function of the vehicle-mounted air conditioner is started, detecting whether the current air circulation mode is an internal circulation mode or an external circulation mode;
s13b, if the compressor is in the external circulation mode, detecting whether the compressor is started, if the detection result is yes, switching to the internal circulation mode, if the detection result is no, detecting whether the PM2.5 value in the vehicle is larger than a second preset value, and if the detection result is yes, switching to the internal circulation mode;
s14b, detecting the PM2.5 value in the vehicle at regular time, and returning to the initial state until the PM2.5 value is less than or equal to a third preset value or the time length of the vehicle in the internal circulation mode reaches a second set time length.
2. The vehicle-mounted air purification method according to claim 1, wherein the air purification method of the PM2.5 in the vehicle in step S2 includes:
a second PM2.5 purification method during fogging and a second PM2.5 purification method during non-fogging;
when the temperature outside the vehicle is higher than the critical temperature of the fog point, adopting a second PM2.5 purification method when the fog does not appear;
and when the temperature outside the vehicle is less than or equal to the critical temperature of the fog point, adopting a second PM2.5 purification method during fogging.
3. The vehicle-mounted air purification method according to claim 2, wherein the second PM2.5 purification method during non-fogging comprises the following steps:
s21a, detecting whether the current air circulation mode is an internal circulation mode or an external circulation mode, if the current air circulation mode is the internal circulation mode, starting a PM2.5 purification function of the vehicle-mounted air conditioner, and if the current air circulation mode is the external circulation mode, switching to the internal circulation mode, and starting the PM2.5 purification function of the vehicle-mounted air conditioner;
s22a, after the time length is set, detecting a PM2.5 value outside the automobile;
s23a, if the PM2.5 value outside the automobile is larger than the first preset value, returning to the step S22a,
s24a, when the detection frequency of the PM2.5 value outside the automobile reaches the first time threshold value, the external circulation is forced to set the time length, the internal circulation mode is switched back, the step S22a is returned, and the external circulation mode is switched until the PM2.5 value outside the automobile is smaller than or equal to the first preset value.
4. The vehicle-mounted air purification method according to claim 2, wherein the second PM2.5 purification method during fogging comprises the following steps:
s21b, detecting whether the current air circulation mode is an internal circulation mode or an external circulation mode, if the current air circulation mode is the internal circulation mode, starting a PM2.5 purification function of the vehicle-mounted air conditioner, and if the current air circulation mode is the external circulation mode, executing a step S22 b;
s22b, detecting whether the compressor is started or not, if so, switching to an internal circulation mode, and starting a PM2.5 purification function of the vehicle-mounted air conditioner;
s23b, detecting a PM2.5 value outside the vehicle after setting the time length;
s24b, if the PM2.5 value outside the automobile is larger than the first preset value, returning to the step S23b until the PM2.5 value outside the automobile is smaller than or equal to the first preset value, or the detection frequency of the PM2.5 value outside the automobile reaches the second frequency threshold value, and switching to an outer loop.
5. The vehicle air purification method according to claim 4, wherein if the compressor is in the off state in the step S22b, the PM2.5 purification method during fogging comprises the following steps:
detecting whether the PM2.5 value in the vehicle is larger than a second preset value or not, if so, switching to an internal circulation mode, starting a PM2.5 purification function of the vehicle-mounted air conditioner, and switching to an external circulation mode after setting time; if the detection result is negative, the external circulation mode is kept unchanged.
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| CN111002795A (en) * | 2019-12-13 | 2020-04-14 | 中国第一汽车股份有限公司 | Air purification system and method and vehicle |
| CN114056032B (en) * | 2020-08-04 | 2022-11-29 | 奇瑞商用车（安徽）有限公司 | Air purification system and control method thereof |
| CN114312204A (en) * | 2020-09-29 | 2022-04-12 | 长城汽车股份有限公司 | In-vehicle air conditioning method and device and vehicle |
| CN113183724B (en) * | 2021-04-14 | 2022-07-08 | 东风汽车集团股份有限公司 | Automobile air purification method and automobile air purification system |
| CN113829839A (en) * | 2021-10-27 | 2021-12-24 | 奇瑞商用车（安徽）有限公司 | Automobile PM2.5 air purification control method |
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| CN108944345A (en) | 2018-12-07 |
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