CN102555944A - Antifogging method for automobile windshield - Google Patents
Antifogging method for automobile windshield Download PDFInfo
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- CN102555944A CN102555944A CN2010105781926A CN201010578192A CN102555944A CN 102555944 A CN102555944 A CN 102555944A CN 2010105781926 A CN2010105781926 A CN 2010105781926A CN 201010578192 A CN201010578192 A CN 201010578192A CN 102555944 A CN102555944 A CN 102555944A
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Abstract
The invention relates to an antifogging method for an automobile windshield, which includes: using a front windshield sensor (4) to collect temperature of the windshield, calculating temperature in a carriage by a formula according to relative humidity and temperature data of a same point in the carriage, and comparing the interior temperature of the automobile with the temperature of the windshield to judge whether the windshield is fogged or not. Td refers to the interior temperature of the automobile, Tws refers to the temperature of the windshield, delta refers to safety factor, and Td+delta=>Tws refers that the windshield is possibly fogged and a defogging controller starts to defog. The antifogging method for the automobile windshield has the advantages that the antifogging method is automatic, intelligent, safe, efficient, energy-saving and low-carbon.
Description
Technical field
The invention belongs to automobile anti-smog device technical field, more specifically, relate to a kind of windshield anti-fog method.
Background technology
Along with China's economy developing rapidly over the years, an automobile, for we common people, again neither a thing that be expected and can not ask.According to statistics, the sales volume of China's automobile in 2008 has broken through 8,700,000, but at the Domestic Automotive Industry high speed development, when bringing convenience with joy to people, hidden danger is also following.327209 of road traffic accidents took place in China altogether in 2007, caused 81619 people dead, and 380442 people are injured; 1,200,000,000 yuan of direct property loss, such road accident incidence are considerably beyond the average level of western developed country, and in the cause that superincumbent road accident takes place; What quite a few accident was arranged is because in winter; Perhaps rainy day the time,, thereby caused the generation of road accident because Windshield fog occurs and cause driver's blurred vision unclear.
Now, " demist shelves " button that has the car of a lot of models all to possess, for the customer; Directly using these demist shelves to come demist to appear to is a very simple thing, but in fact a lot of drivers do not know when automobile hazes, and need to remove mist; And when need not remove mist and can close the button of demist retaining, often clients can come the function of not anxious deactivation demist unsuitable the time; Or when automobile does not need demist; Drivers also continue starting this function of demist, and the HVAC system that is moving automobile carries out demist, has wasted the consumption of the energy greatly; At this time just needing the method for an automatic demist of intelligence to help essentiality and the time that everybody confirms demist; Automatically defogging method not merely is that life to the inside, compartment people has had a guarantee, and the consumption of having saved energy source of car, is playing indelible effect aspect the oil consumption saving.
In order to solve the problems of the technologies described above, the invention provides the automatic defogging method of a kind of windshield, have the characteristics of automated intelligent, safe and efficient, energy-saving low-carbon.
Summary of the invention
The main reason that forms mist above the Windshield is the temperature decline of Windshield and the temperature that has been lower than the inside, compartment air, so temperature that two big parameter amounts of measurements and calculations are exactly Windshield and the temperature in the compartment.
All things considered, antifog system has comprised three parts automatically, comprises the parameter measurement input, calculation of parameter analysis and demist control.
In order to analyze the condition that hazes; It is to need to measure that three parameter amounts are arranged, and one is the temperature of windshield, also has the relative humidity of the inside, compartment same point and the temperature that temperature is used to calculate the inside, compartment dew point; Existing more existing ripe sensor assemblies; Be close to above the windshield, the module the inside has just comprised the temperature sensor that can measure windshield and the temperature and humidity sensor that can measure same point in the compartment, through these sensors; Monitored this three big physical quantity that causes the generation of hazing in real time, analyzed and calculate thereby send air-conditioning MCU system to
Collect the temperature of measuring the Windshield of returning; In the compartment after the data of same point relative humidity and temperature; The air-conditioning central controller can be analyzed and compares data, at first is to calculate the temperature in the compartment to the data of same point relative humidity and temperature in the compartment through a series of formula.Judge through the temperature in the comparison car and the temperature of Windshield whether Windshield hazes then.We represent the temperature in the car with Td, and Tws representes the temperature of Windshield.Δ is represented safety factor
Judge:
Td+Δ
The Td+ Δ=＞Tws Windshield might haze (being in high-risk fog-zone, demist control beginning demist)
We are when using the automatic demister system of intelligence; Because in the time of incipient (in the time of 1～2 minute time); The Windshield temperature in compartment is on the low side, and the inside, compartment is because several people's breathing constantly raises the relative humidity of the inside, compartment; Thereby the temperature of compartment the inside also raises relatively, when temperature slowly near the temperature of Windshield the time.We can see, begin to have the appearance of mist above the Windshield gradually, and at this time, if we do not take any measure, the mist above the Windshield can get more and more, and has blocked driving personage's the visual field fully, and in service at road is cooresponding danger.At this time we will open our demister system automatically; After opening demister system automatically; We can see that the temperature of windshield begins to raise 3～5 minutes time period the inside, and the temperature of the inside, compartment has turned to decline from rising gradually; And more and more away from the temperature of Windshield, at this time the mist above the compartment Windshield also will disappear rapidly.
Because we will operate our demister system at Windshield before hazing in advance, so we can set a safety factor Δ, when preset temperature the time near the temperature of Windshield; Just when the Td+ Δ=＞the Tws Windshield is in high-risk fog-zone, so at this time will open demisting control system the beginning demist; When the temperature spread of preset temperature and Windshield arrives certain numerical value, just as Td+ Δ＜TWS, in the time of inside the time period of 6～8 minutes time; System just can judge that the compartment is in a low fog-zone of having endangered; Demister system can be closed, and so just can control the effectiveness that demister system plays intelligent defrosting in real time through measuring, and Windshield any fog can not occur; Automatically demister system can more efficient demist, thus the consumption of the energy of saving.
Air-conditioning MCU system declare measure need carry out demist after, have following several big method to remove the fog that occurs above the Windshield usually.
1, when the relative humidity in the compartment is very high, keep good ventilation, make that malaria exchanges in the outer dry air of car and the compartment, thereby reduce the temperature of presetting in the compartment of the relative humidity reduction in the compartment.
2, directly the compartment Windshield is begun heating; Make the temperature build-up of compartment Windshield; And exceed temperature preset in the compartment, perhaps quicken flowing of Windshield front air, the exchange of air in face of the temperature of increase Windshield that can be suitable and the Windshield.Thereby the relative humidity in face of the reduction windshield.
3, open a/c system in the car, a/c system is set to outer circulation, and compressor can be opened, and the relative humidity in compartment is reduced rapidly, and the preset temperature in this moment compartment will reduce, the temperature of low compartment Windshield.
Description of drawings
Fig. 1 is the anti-fog method scheme drawing.Wherein, 1-air-conditioner air outlet; The 2-hot blast; The 3-front windshield; 4-front windshield sensor; 5-car inner sensor.
The specific embodiment
A kind of windshield anti-fog method; At first; Temperature through front windshield sensor 4 collection Windshield; After the data through same point relative humidity and temperature in the car inner sensor 5 collection compartments, the air-conditioning central controller can be analyzed and compares data, calculates the temperature in the compartment to the data of same point relative humidity and temperature in the compartment through a series of formula.Then, compare the interior temperature of car and the temperature of Windshield excessively and judge whether Windshield hazes.We represent the temperature in the car with Td, and Tws representes the temperature of Windshield.Δ is represented safety factor, judges:
Td+Δ
The Td+ Δ=＞Tws Windshield might haze (being in high-risk fog-zone, demist control beginning demist);
Just can judge the compartment when Td+ Δ＜TWS system and be in a low fog-zone of having endangered, demister system can be closed.
Air-conditioning MCU system declare measure need carry out demist after, have following several big method to remove the fog that occurs above the Windshield usually.
Claims (2)
1. windshield anti-fog method,
At first; Collect the temperature of Windshield through front windshield sensor (4); After the data through same point relative humidity and temperature in car inner sensor (5) the collection compartment; The air-conditioning central controller can be analyzed and compares data, calculates the temperature in the compartment to the data of same point relative humidity and temperature in the compartment through formula
Then, excessively relatively the temperature in the car and the temperature of Windshield judge whether Windshield hazes, and representes the temperature in the car with Td, and Tws representes the temperature of Windshield, and Δ is represented safety factor,
Judge:
Td+Δ
The Td+ Δ=＞the demist control beginning demist of might hazing of Tws Windshield;
Just can judge the compartment when Td+ Δ＜TWS system and be in a low fog-zone of having endangered, demister system can be closed.
2. a kind of windshield anti-fog method as claimed in claim 1 is characterized in that:
Air-conditioning MCU system declare measure need carry out demist after, select to adopt one of following three kinds of methods to remove the fog that occurs above the Windshield:
(1), when the relative humidity in the compartment is very high, keep good ventilation, make that malaria exchanges in the outer dry air of car and the compartment, thereby reduce the temperature of presetting in the compartment of the relative humidity reduction in the compartment;
(2), directly the compartment Windshield is begun heating; Make the temperature build-up of compartment Windshield; And exceed in the compartment preset temperature; Perhaps quicken flowing of Windshield front air, the exchange of air in face of the temperature of increase Windshield that can be suitable and the Windshield, thus reduce the relative humidity in face of the windshield;
(3), open the a/c system in the car, a/c system is set to outer circulation, compressor can be opened, and the relative humidity in compartment is reduced rapidly, the preset temperature in this moment compartment will reduce, the temperature of low compartment Windshield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105781926A CN102555944A (en) | 2010-12-08 | 2010-12-08 | Antifogging method for automobile windshield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105781926A CN102555944A (en) | 2010-12-08 | 2010-12-08 | Antifogging method for automobile windshield |
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| Publication Number | Publication Date |
|---|---|
| CN102555944A true CN102555944A (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105781926A Pending CN102555944A (en) | 2010-12-08 | 2010-12-08 | Antifogging method for automobile windshield |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745173A (en) * | 2012-07-24 | 2012-10-24 | 苏州工业园区七星电子有限公司 | Car windshield fog-resisting system based on sensor technology |
| CN103995552A (en) * | 2014-05-26 | 2014-08-20 | 深圳市金立通信设备有限公司 | Screen water mist processing method and terminal |
| CN104470011A (en) * | 2014-11-06 | 2015-03-25 | 无锡科思电子科技有限公司 | Automobile foreside windshield anti-fog system |
| CN105823178A (en) * | 2016-03-29 | 2016-08-03 | 乐视控股（北京）有限公司 | Method and device for controlling air conditioner in car |
| CN109849618A (en) * | 2019-03-13 | 2019-06-07 | 深圳市元征科技股份有限公司 | A kind of method and device prevented vehicle window and generate mist frost |
| CN110816475A (en) * | 2019-12-05 | 2020-02-21 | 宝能汽车有限公司 | Vehicle window defogging device and vehicle window defogging method |
| CN110978951A (en) * | 2019-12-17 | 2020-04-10 | 重庆超力高科技股份有限公司 | Demisting control method and device and automobile |
| CN114312670A (en) * | 2021-12-30 | 2022-04-12 | 深圳市源建传感科技有限公司 | Automatic demisting method and device for automobile glass |
-
2010
- 2010-12-08 CN CN2010105781926A patent/CN102555944A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745173A (en) * | 2012-07-24 | 2012-10-24 | 苏州工业园区七星电子有限公司 | Car windshield fog-resisting system based on sensor technology |
| CN103995552A (en) * | 2014-05-26 | 2014-08-20 | 深圳市金立通信设备有限公司 | Screen water mist processing method and terminal |
| CN103995552B (en) * | 2014-05-26 | 2016-05-25 | 深圳市金立通信设备有限公司 | A kind of screen water smoke processing method and terminal |
| CN104470011A (en) * | 2014-11-06 | 2015-03-25 | 无锡科思电子科技有限公司 | Automobile foreside windshield anti-fog system |
| CN105823178A (en) * | 2016-03-29 | 2016-08-03 | 乐视控股（北京）有限公司 | Method and device for controlling air conditioner in car |
| CN109849618A (en) * | 2019-03-13 | 2019-06-07 | 深圳市元征科技股份有限公司 | A kind of method and device prevented vehicle window and generate mist frost |
| CN110816475A (en) * | 2019-12-05 | 2020-02-21 | 宝能汽车有限公司 | Vehicle window defogging device and vehicle window defogging method |
| CN110978951A (en) * | 2019-12-17 | 2020-04-10 | 重庆超力高科技股份有限公司 | Demisting control method and device and automobile |
| CN110978951B (en) * | 2019-12-17 | 2021-06-11 | 重庆超力电器有限责任公司 | Demisting control method and device and automobile |
| CN114312670A (en) * | 2021-12-30 | 2022-04-12 | 深圳市源建传感科技有限公司 | Automatic demisting method and device for automobile glass |
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Application publication date: 20120711 |