CN109808446A - A kind of monitoring of in-car air quality and automatic ventilation control system - Google Patents
A kind of monitoring of in-car air quality and automatic ventilation control system Download PDFInfo
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- CN109808446A CN109808446A CN201910033092.6A CN201910033092A CN109808446A CN 109808446 A CN109808446 A CN 109808446A CN 201910033092 A CN201910033092 A CN 201910033092A CN 109808446 A CN109808446 A CN 109808446A
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Abstract
The present invention provides a kind of monitoring of in-car air quality and automatic ventilation control system includes in-car air quality detector, the outer air quality detector of vehicle, central controller, execution module；The ventilation program receives interior sensor and vehicle outer sensor testing result information, compares with preset set target value, without ventilation if in-car air quality meets set target value；If in-car air quality is unsatisfactory for set target value, then in-car air quality and air quality outside vehicle are compared, without ventilation if in-car air quality is better than the outer air quality of vehicle, take a breath if in-car air quality is poorer than air quality outside vehicle to execution module sending instruction.The present invention realizes in the function of ventilation using comprehensively considering, can single some system realization can also be carried out simultaneously with multiple combinations, realize that, to temperature, wind speed, windowing position is selected, controlled vehicle window aperture skylight aperture and angle.
Description
Technical field
Design vehicle engineering field of the present invention is monitored more particularly to a kind of in-car air quality and automatic ventilation control system.
Background technique
With the development of the automobile industry, automotive engineering is continuously improved, and consumer gets over the performance requirement of the various aspects of automobile
Come higher, in-car air quality quality also becomes consumer to comfort requirement, and in-car air quality also becomes the straight of consumer
See experience, the quality of air quality directly influence driver and passenger's mood whether Yu Yue key factor；Existing car ventilation side
Formula mainly realized by the manual operation of air-conditioning, skylight and car door window, but because of the individual difference of passenger, often
The difference of personal ability to bear, existing realization technology also different to the perception and ability to bear of in-car air quality quality
Driver is needed to be operated manually the energy influence traffic safety that will disperse driver.
The existing method for realizing interior ventilation ventilation is carried out by air-conditioning, door and window and skylight manually operated
, and because passenger's individual perception and ability to bear difference the process of ventilation be by people subjective factor rise determines work
With pilot's line of vision leaves travel route when manual operation, and hand leaves steering wheel body and deviates correctly driving posture
It has a certain impact to the driving of vehicle, directly influences the safety of driving.
Summary of the invention
The present invention provides a kind of monitoring of in-car air quality to solve the above-mentioned problems and automatic ventilation control system includes,
In-car air quality detector, the outer air quality detector of vehicle, central controller, execution module；
The in-car air quality detector is respectively arranged at B column, C column position and the B column on right side on the left of vehicle, C column position
It sets；
The outer air quality detector of the vehicle is set to car body outer surface；
The centralized controller processor executes ventilation program；
The ventilation program receives interior sensor and vehicle outer sensor testing result information, with preset set target value
It compares, without ventilation if in-car air quality meets set target value；If in-car air quality is unsatisfactory for setting mesh
Scale value then compares in-car air quality and air quality outside vehicle, if in-car air quality is better than the outer air quality of vehicle
Without ventilation, instruction is issued to execution module if in-car air quality is poorer than air quality outside vehicle and is taken a breath.
Further, the ventilation program by in-car air quality quality be divided into it is excellent, good, in, the several ranks of difference, center
Controller carries out the wind speed, the temperature that control air-conditioning alone or in combination according to the grade of interior air quality to air-conditioning, vehicle window and skylight,
Vehicle window open position opens size, skylight aperture and angle.
Further,
The material concentration information that the ventilation program detects air quality sensor carries out grade classification, by practical inspection
Standard value in measured value and preset concentration set carries out difference operation, and the smallest result of difference is recorded as single nuisance etc.
Grade value.
Further,
The ventilation program generates comprehensive nuisance grade point according to single nuisance grade point using following steps:
The testing result that harmful substance detects then pernicious gas when substance is a certain grade is other for this grade as a result, if institute
Have detection material result be it is excellent, be determined as excellent；
If the testing result of multiple harmful substances is there are when two kinds of adjacent ranks, the result of opposite inferior grade has 3 or more
End value, then be determined as lower level as a result, if the result of opposite inferior grade is less than 3；
If the testing result of multiple harmful substances is separated by grade for two kinds, the result of relatively high level has 4 or more
Then result reduces level-one, if higher level result is less than 4, result presses the result treatment of lower level；
If the testing result of multiple harmful substances is three kinds of grades, the lowest class number is greater than 3 and determines that result is most
Inferior grade, the lowest class number are not more than 3, then determine result for intermediate grade；
If testing result is four kinds of grades, see the number of which grade of higher level and inferior grade it is more it is determined that into
One step,
The execution module includes air conditioning for automobiles, auto window controlling device
Further, the influence condition that the ventilation program according to the following steps take a breath to vehicle according to speed is to controlling mould
Block issues control instruction:
It takes a breath if speed is less than 80km/h using driving window, skylight and in the form of turning on the aircondition；
Being more than or equal to 80km/h if speed, opening vehicle window take a breath and skylight and air-conditioning carry out less than forbidding if 100km/h
Ventilation；
It is taken a breath if forbidding opening vehicle window and skylight to be taken a breath when speed is more than or equal to 100km/h by air-conditioning；
Further, the ventilation program is using following formula control ventilation volume and air exchanging rate:
Interior space volume of air L, the flow of air is Q into the car
It is taken a breath using the unlatching of vehicle window and skylight:
Then Q1=Vc1S1
In formula: Vc1 is Vehicle Speed, S1 draught area area
It is taken a breath using air-conditioning,
Then Q2=VkS2
In formula: Vk is air conditioner wind speed, S2 draught area area
Speed in above-mentioned formula is directly obtained by vehicle speed sensor, and the draught area of air-conditioning is gone out by the air-conditioning of car itself
Air port size determines.
Further, the open state of each vehicle window is defined as five kinds of states by the ventilation program, A1, A2, A3, A4,
A5, A1 represent vehicle window standard-sized sheet, and A2 represents 3/4ths, A3 of vehicle window opening and represents vehicle window semi-open, and A4 represents vehicle window and opens a quarter,
A5 represents window of not driving；
The open state of skylight is defined as three kinds of states, T1, T2, T3 by the ventilation program, and T1 represents skylight standard-sized sheet, T2
It is half-open to represent skylight, T3 representative does not put in a skylight；
Further, the ventilation program controls air-conditioning using following steps,
If the outer air environment of vehicle is taken a breath using air-conditioning outer circulation well than car, if the outer air environment of vehicle is poorer than interior
Circulation is taken a breath in air-conditioning；
Wind speed scale is divided according to air-conditioning system initial designs.
The beneficial effects of the invention are as follows
1, in-car air quality detects and makes comparison with standard value, obtain it is excellent, good, in, the control hierarchies such as difference
2, the air quality outside while detecting in-car air quality to vehicle also detects, and avoids external worse sky
Gas is into the car
3, consider running speed factor simultaneously, the case where running at high speed misoperation is avoided to bring the influence of noise
4, not single on the function of ventilation is realized that certain form of air-conditioning, vehicle window or skylight is taken to realize, but synthesis is examined
Consider, can the realization of single some system can also be carried out simultaneously with multiple combinations, realize that, to temperature, wind speed, windowing position is selected
It selects, vehicle window aperture skylight aperture and angle is controlled
Detailed description of the invention
Fig. 1 is one embodiment of the invention annexation figure.
Fig. 2 is one embodiment of the invention installation diagram.
Specific embodiment
The present invention solve the problems, such as the thinking in background technique first is that,
The method of in-car air quality detection proposed by the present invention and automatic ventilation, can be judgement with objective standard
According to controlling in-car air quality, the comfort of occupant is promoted, and realize automatic identification draft type, liberated and driven
The manual operation of the person of sailing or occupant, promote drive safety, and automobile is more intelligent.
The present invention realizes detection, the fully automated completion of scavenging period of air quality, and realizes with objective air matter
Amount quality is determinant as judgment basis；The current driving status of this method combination vehicle and interior external environment select automatically
It selects air-conditioning, door and window, skylight to take a breath, and select vehicle window is opened, controller opens size, the size that skylight is opened
And angle, air conditioner wind speed and demeanour carry out automatically controlling.
The present invention as shown in Figure 1 provides a kind of in-car air quality monitoring and automatic ventilation control system includes, interior empty
Makings amount detector, the outer air quality detector of vehicle, central controller, execution module；
The as shown in Figure 2 in-car air quality detector is respectively arranged at the B of B column on the left of vehicle, C column position and right side
Column, C column position；
The outer air quality detector of the vehicle is set to car body outer surface；
The centralized controller processor executes ventilation program；
The ventilation program receives interior sensor and vehicle outer sensor testing result information, with preset set target value
It compares, without ventilation if in-car air quality meets set target value；If in-car air quality is unsatisfactory for setting mesh
Scale value then compares in-car air quality and air quality outside vehicle, if in-car air quality is better than the outer air quality of vehicle
Without ventilation, instruction is issued to execution module if in-car air quality is poorer than air quality outside vehicle and is taken a breath.
Below by a specific embodiment, the present invention will be described:
In-vehicle air detection: Detection of Air Quality sensor is arranged in the car, the present invention is in the left and right B column of vehicle, C column position
It sets and is respectively arranged a sensor, totally four sensors detect front-seat and heel row air quality respectively, mainly to interior harmful
Substance and polluter are detected
The outer air quality of vehicle: arrange that an air quality sensor detects air quality outside vehicle outside vehicle, mainly
Detect the polluter of the outer air of vehicle
The discriminatory analysis of air quality: processor receives interior sensor and vehicle outer sensor testing result, with system mark
Definite value compares, without ventilation if in-car air quality meets setting target；If in-car air quality is unsatisfactory for setting
Target, then compared with Outdoor Air Quality, without ventilation if better than the outer air quality of vehicle, if than air quality outside vehicle
It is poor then take a breath
Cofactor: vehicle speed information, the reference factor that vehicle speed information is acted as execution avoid opening vehicle window band when high speed
Carry out the influence of noise
Execute control: in-car air quality quality be divided into it is excellent, good, in, the several ranks of difference, obtaining different result knots
The size of speed is closed, processor carries out the wind for controlling air-conditioning alone or in combination according to the difference of result to air-conditioning, vehicle window and skylight
Speed, temperature, vehicle window open position open size, skylight aperture and angle.
The detection of air quality includes that harmful gas in vehicle and two aspect limit value of pollutant measure, according to " passenger car
Interior Air Quality Evaluation guide " and the requirement of " ambient air quality " specifically measure ingredient and see the table below 1, table 2, following table is limited
Value requires the criterion as system to interior control quality；Good and bad not single one detection of consideration of air quality
Substance judges, is comprehensively considered according to the extent of injury of each detectable substance confrontation human body.Such as: benzene, benzene is in vapour form through exhaling
It inhales road to enter in vivo, being exposed to phenyl ring border for a long time will lead to candidate stem cell function reduction and many diseases, as myelosis is different
Normal syndrome, leukaemia etc., the benzene of prolonged and repeated Low Level Exposure can cause slow poisoning, show to nervous system and hematopoiesis
The harm of system.
This patent divides the grade of each detection substance, and by taking substance benzene as an example, the concentration value set of benzene is divided
Four grades be (0.04,0.06,0.08,0.1) represent its quality results set as (it is excellent, it is good, in, it is poor).Actually detected value
Do difference with the standard value in above-mentioned concentration set, it is closest with threshold value that the smallest result of difference represents detected value,
The then value in feedback air quality in the results set of benzene substance, such as detecting the concentration of interior benzene is 0.047, by this detected value
It is (0.007,0.013,0.033,0.053) that difference is compared with the threshold value in benzene concentration value set, and 0.007 is minimum, then table
Show that detected value 0.047 and 0.04 is closest, then the end value for feeding back benzene content is " excellent ".
The detection of 1 pernicious gas of table and limit value table
2 pollutant monitoring of table and limit value table
The judgment criterion of pernicious gas credit rating:
1) then the testing result of pernicious gas is this grade other as a result, example when harmful substance detection substance is a certain grade
As all detection material results be it is excellent, be determined as excellent
2) if for testing result there are when two kinds of adjacent ranks, the result of opposite inferior grade there are 3 result above values, then determine
It is lower level as a result, if the result of opposite inferior grade is less than 3, is determined as higher as a result, for example testing result has 5
A substance be it is excellent and have 3 kinds of substance testing results be it is good, then it is overall be determined as it is good
3) if testing result is separated by grade for two kinds, the result of relatively high level has 4 or more results to reduce by one
Grade, if higher level result is less than 4, result presses the result treatment of lower level
If 4) testing result be three kinds of grades, the lowest class number be greater than 3 determine result for the lowest class, it is most low
Series is not more than 3, then determines that result for intermediate grade, such as in 2 excellent 3 good 3, then determines that result is good
If 5) testing result is four kinds of grades, see the number of which grade of higher level and inferior grade it is more it is determined that
Which grade, if quantity unanimously if by inferior grade determine.
The credit rating of pollutant is consistent with pernicious gas credit rating judgment principle.
In order to avoid bringing the influence of noise due to running at high speed, the influence condition that speed takes a breath to vehicle:
1) speed is less than 80km/h and can be taken a breath using driving window, skylight and the form turned on the aircondition, specific to determine to need
It is determined according to air quality grade
2) speed forbids opening vehicle window to take a breath more than or equal to 80km/h less than 100km/h, can use skylight and sky
Transfer in capable ventilation
3) forbid opening vehicle window when speed is more than or equal to 100km/h and skylight is taken a breath, can only be changed by air-conditioning
Gas
Ventilation volume and air exchanging rate:
Interior space is certain after Car design is good, into the car the flow of air to toxic gas in air and
The concentration of pollutant has a direct impact.Given interior space volume of air L, the flow of air is Q into the car
It is taken a breath using the unlatching of vehicle window and skylight:
Then Q1=Vc1S1
In formula: Vc1 is Vehicle Speed, S1 draught area area
It is taken a breath using air-conditioning,
Then Q2=VkS2
In formula: Vk is air conditioner wind speed, S2 draught area area
Speed in above-mentioned formula can be directly obtained by vehicle speed sensor, and the draught area of air-conditioning is by the sky of car itself
Recalling the decision of air port size, the present invention is accomplished that when being taken a breath using vehicle window or skylight to door and window open area size S1,
The flow for controlling air into the car is changed empty into the car using the control to air conditioner wind speed Vk is realized when Air conditioner air exchange
The flow of gas.
State definition to vehicle window control:
The open state of each vehicle window is defined as five kinds of states, A1, A2, A3, A4, A5, A1 represents vehicle window standard-sized sheet, A2 generation
Table vehicle window opens 3/4ths, A3 and represents vehicle window semi-open, and A4 represents vehicle window and opens a quarter, and A5 represents window of not driving；
The open state of skylight is defined as three kinds of states, T1, T2, T3, T1 represents skylight standard-sized sheet, and T2 represents skylight half
It opens, T3 representative does not put in a skylight；
Airconditioning control object:
Circulation and outer circulation switching in air-conditioning, the outer air environment of vehicle is taken a breath using outer circulation well than car, otherwise is made
Improve in-car air quality with the interior air conditioning purification function that recycles
Air conditioner wind speed control, divides wind speed scale according to air-conditioning system initial designs
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. a kind of in-car air quality monitoring and automatic ventilation control system, it is characterised in that including in-car air quality detection
Device, the outer air quality detector of vehicle, central controller, execution module；
The in-car air quality detector is respectively arranged at B column, C column position and the B column on right side on the left of vehicle, C column position；
The outer air quality detector of the vehicle is set to car body outer surface；
The centralized controller processor executes ventilation program；
The ventilation program receives interior sensor and vehicle outer sensor testing result information, carries out with preset set target value
Comparison, without ventilation if in-car air quality meets set target value；If in-car air quality is unsatisfactory for set target value,
Then in-car air quality and air quality outside vehicle are compared, if in-car air quality is better than the outer air quality of vehicle without
Ventilation issues instruction to execution module if in-car air quality is poorer than air quality outside vehicle and takes a breath.
2. a kind of in-car air quality monitoring as described in claim 1 and automatic ventilation control system, which is characterized in that
The ventilation program by in-car air quality quality be divided into it is excellent, good, in, the several ranks of difference, central controller is according to interior
The grade of air quality carries out the wind speed, the temperature that control air-conditioning alone or in combination, vehicle window open position to air-conditioning, vehicle window and skylight
Open size, skylight aperture and angle.
3. a kind of in-car air quality monitoring as claimed in claim 2 and automatic ventilation control system, it is characterised in that described
The material concentration information that ventilation program detects air quality sensor carries out grade classification, by actually detected value with it is preset
Standard value in concentration set carries out difference operation, and the smallest result of difference is recorded as single nuisance grade point.
4. a kind of in-car air quality monitoring as claimed in claim 3 and automatic ventilation control system, it is characterised in that described
Program of taking a breath generates comprehensive nuisance grade point according to single nuisance grade point using following steps:
The testing result that harmful substance detects then pernicious gas when substance is a certain grade is other as a result, if all inspections for this grade
Survey material result be it is excellent, be determined as excellent；
If the testing result of multiple harmful substances is there are when two kinds of adjacent ranks, the result of opposite inferior grade has 3 result above
Value, then be determined as lower level as a result, if the result of opposite inferior grade is less than 3；
If the testing result of multiple harmful substances is separated by grade for two kinds, the result of relatively high level has 4 or more to tie
Fruit reduces level-one, if higher level result is less than 4, result presses the result treatment of lower level；
If the testing result of multiple harmful substances is three kinds of grades, the lowest class number is greater than 3 and determines that result is most low
Grade, the lowest class number are not more than 3, then determine result for intermediate grade；
If testing result is four kinds of grades, see that the number of which grade of higher level and inferior grade is more it is determined which etc.
Grade, if quantity unanimously if by inferior grade determine.
5. a kind of in-car air quality monitoring as claimed in claim 4 and automatic ventilation control system, it is characterised in that
The execution module includes air conditioning for automobiles, auto window controlling device.
6. a kind of in-car air quality monitoring as claimed in claim 5 and automatic ventilation control system, which is characterized in that
The ventilation program issues control to control module to the influence condition that vehicle is taken a breath according to speed according to the following steps and refers to
It enables:
It takes a breath if speed is less than 80km/h using driving window, skylight and in the form of turning on the aircondition；
Being more than or equal to 80km/h if speed, opening vehicle window carries out ventilation and skylight and air-conditioning are changed less than forbidding if 100km/h
Gas；
It is taken a breath if forbidding opening vehicle window and skylight to be taken a breath when speed is more than or equal to 100km/h by air-conditioning.
7. a kind of in-car air quality monitoring as claimed in claim 6 and automatic ventilation control system, which is characterized in that
The ventilation program is using following formula control ventilation volume and air exchanging rate:
Interior space volume of air L, the flow of air is Q into the car
It is taken a breath using the unlatching of vehicle window and skylight:
Then Q1=Vc1 S1
In formula: Vc1 is Vehicle Speed, S1 draught area area
It is taken a breath using air-conditioning,
Then Q2=Vk S2
In formula: Vk is air conditioner wind speed, S2 draught area area
Speed in above-mentioned formula is directly obtained by vehicle speed sensor, and the draught area of air-conditioning is by interior air-conditioner air outlet itself
Size determines.
8. a kind of in-car air quality monitoring as claimed in claim 7 and automatic ventilation control system, which is characterized in that
The open state of each vehicle window is defined as five kinds of states, A1, A2, A3, A4, A5 by the ventilation program, and A1 represents vehicle window
Standard-sized sheet, A2 represent 3/4ths, A3 of vehicle window opening and represent vehicle window semi-open, and A4 represents vehicle window and opens a quarter, and A5 representative is not driven
Window；
The open state of skylight is defined as three kinds of states, T1, T2, T3 by the ventilation program, and T1 represents skylight standard-sized sheet, and T2 is represented
Skylight is half-open, and T3 representative does not put in a skylight.
9. a kind of in-car air quality monitoring as claimed in claim 8 and automatic ventilation control system, which is characterized in that
The ventilation program controls air-conditioning using following steps,
If the outer air environment of vehicle is taken a breath using air-conditioning outer circulation well than car, if the outer air environment of vehicle is than interior poor air-conditioning
Interior circulation is taken a breath；
Wind speed scale is divided according to air-conditioning system initial designs.
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| CN114856363A (en) * | 2022-04-21 | 2022-08-05 | 中国第一汽车股份有限公司 | Vehicle window ventilation control method and device based on neural network and vehicle |
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