CN104470011A - Automobile foreside windshield anti-fog system - Google Patents
Automobile foreside windshield anti-fog system Download PDFInfo
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- CN104470011A CN104470011A CN201410615909.8A CN201410615909A CN104470011A CN 104470011 A CN104470011 A CN 104470011A CN 201410615909 A CN201410615909 A CN 201410615909A CN 104470011 A CN104470011 A CN 104470011A
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- temperature
- heating
- front windshield
- automobile front
- car
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Abstract
The invention discloses an automobile foreside windshield anti-fog system which comprises a first temperature sensor, a second temperature sensor, a third temperature sensor, a humidity sensor, a heating module and a control module. The heating module comprises an outer heating layer and an inner heating layer. The outer heating layer is used for heating an outer glass layer of an automobile foreside windshield. The inner heating layer is used for heating an inner glass layer of the automobile foreside windshield. The first temperature sensor and the humidity sensor are used for sensing the temperature of the air outside an automobile and the humidity of the air outside the automobile respectively. The second temperature sensor is used for sensing the temperature of the outer glass layer of the automobile foreside windshield. The third temperature sensor is used for sensing the temperature of the air in the automobile. The control module is used for calculating the dew point temperature of the air outside the automobile, judging whether the temperature difference between the interior and the exterior of the automobile is larger than the preset temperature difference threshold value or not through comparison and controlling the heating module to work according to the dew point temperature and the comparison result. The automobile foreside windshield anti-fog system is simple in structure, convenient to use and capable of automatically judging whether fogging occurs or not according to the environment and automatically conducting defogging.
Description
Technical field
The present invention relates to field of automobile control, particularly relate to the system that a kind of automobile front windshield is antifog.
Background technology
Automotive electronics is the general name of car body electronic control device for vehicle and vehicular automotive electronic control device.Car body electronic control device for vehicle, comprises engine control system, chassis control system and electrical control unit system (body electronics ECU).The most notable feature of automotive electronics advances to control systemization, with the electric-control system of transducer, microprocessor MPU, actuator, tens of even up to a hundred electronic devices and components and parts thereof composition, just obtaining market extremely widely.Car body electronic control device for vehicle is just like human body that is bald-faced, that do not dress any clothing jewelry; Vehicular automotive electronic comprises vehicle information system, auto-navigation system and automotive entertainment system.Vehicular automotive electronic control device is just like clothing, the jewelry of the person.
Automotive circuit diagram is considered to the revolution in automotive technology development process, and the degree of automotive circuit diagram is counted as the important symbol weighing Hyundai Motor level, is used to develop new model, improves the most important technical measures of automotive performance.Automaker thinks that the quantity of increase vehicle electronics, promotion automotive circuit diagram are the important effective means capturing future automobile market.
According to statistics, from 1989 to 2000, the ratio that on average on each car, electronic installation is shared in whole automobile making cost increases to more than 23% by 16%.On some limousines, use the quantity of one chip microcomputer to reach 48, electronic product accounts for more than 50% of integral vehicle cost, and the application of current electronic technology has almost been deep into all systems of automobile.
Divide according on the impact of running car performance effect, automobile electronics can be summarized as two classes: a class is electronic control device for vehicle, electronic control device for vehicle will carry out with the use of, i.e. auto electroincs of so-called " electric-mechanic control system " with mechanical system on car; They comprise engine, chassis, electrical control unit.Such as electronic fuel injection system, braking anti-lock control, anti-sliding control, polling power controlling, electronic controlled suspension, electronic automatic transmission, electrical power steering etc., another kind of is vehicular automotive electronic device, vehicular automotive electronic device is the electronic installation that can independently use under automotive environment, and it there is no direct relation with the performance of automobile itself.They comprise vehicle information system (car running computer), navigation system, automobile audio and tv entertainment system, Vehicular communication system, equipment for surfing the net etc.
The electronic-controlled installation of present automobile has had very complete consideration to various situation, but, still there are some places not consider: when the outer temperature difference of Che Neiche in winter is larger, windshield easily produces fog, affects sight line.
The windshield of Current vehicle generally is three layers, from outer toward interior be outer glassy layer, doubling layer and interior glassy layer respectively, and the reason that glass hazes has:
1., when air humidity is certain, when window temperature is lower than dew point temperature, will form condensation at windshield surface, this front windshield that namely we often see hazes phenomenon; 2. " interior heat is outer cold " temperature difference is large, it may be tens degree, winter even can reach 20 degree, such glass just there will be fog, namely after the hydrone in car in air touches glass, the cold little water droplet that congeals into of glass temperature chance sub-compared with low moisture, on glass, thickly dotted little water droplet causes the change such as light refraction, reflection, affects sight line.
Generally all by being coated with one deck antifoggant outward at car now, not only inconvenient, and be easy to just lose efficacy, need repeatedly to spray.
Patent " except rain is except fog windshield system " (application number: the 201310063607.X applying date: 2013-02-28) discloses a kind of except rain is except fog windshield system, comprise transparent circulation film, upper rotating shaft, lower rotary shaft, except head, described upper rotating shaft, lower rotary shaft are positioned at described transparent circulation film inner ring and make described transparent circulation film keep tension force, and the described head that removes is positioned at described transparent circulation film outer ring and is close to described transparent circulation film.Under rotating shaft on described, lower rotary shaft rotary action, described transparent circulation film continues to rotate, described except head is by the fog on described transparent circulation film lateral surface or rainwater erasing.Provided by the present invention except rain is except fog windshield system, what can realize windshield removes rain demist airway dysfunction, overcomes prior art moderate rain and brushes rain and heated windshield, subsides antifog film, uses antifoggant except the deficiency of fog.It is in addition, provided by the present invention that except rain, except fog windshield system also can be applicable to house, steamer etc., other need to keep lookout windows of getting a clear view.
This mode is only that when there is fog, people carries out demist for the system of starting, intelligence not, and structure is very complicated.
Summary of the invention
Technical problem to be solved by this invention is for defect involved in background technology, provides the system that a kind of automobile front windshield is antifog.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
The system that automobile front windshield is antifog, comprises the first to the 3rd temperature inductor, humidity sensor, heating module and control module;
Described heating module comprises additional thermosphere and interior zone of heating;
Described additional thermosphere is be arranged on the outer zone of heating between glassy layer and doubling layer of automobile front windshield, for heating the outer glassy layer of automobile front windshield;
Described interior zone of heating is be arranged on the zone of heating in automobile front windshield between glassy layer and doubling layer, for heating glassy layer in automobile front windshield;
Described first temperature inductor, humidity sensor are all arranged on the outer wall of car, are respectively used to respond to the temperature of car outer air and the humidity of car outer air;
Described second temperature inductor is arranged on the outer glassy layer of automobile front windshield, for responding to the temperature of the outer glassy layer of automobile front windshield;
Described 3rd temperature inductor is arranged in car, for responding to the temperature of air in car;
Described control module comprises calculation unit, differential thermal calculation unit, comparing unit and heating unit;
Described calculation unit is used for the dew point temperature calculating car outer air according to the temperature and humidity of car outer air;
Described differential thermal calculation unit for calculating the temperature difference of air themperature and car outer air temperature in car, and when the temperature difference of air themperature and car outer air temperature is more than or equal to default temperature difference threshold value in car, sends internal layer heating instructions to heating unit;
Described comparing unit for comparing the temperature of the dew point temperature of car outer air and the outer glassy layer of automobile front windshield, and when the temperature of the outer glassy layer of automobile front windshield is less than or equal to the dew point temperature of car outer air, sends outer heating instructions to heating unit;
In described heating unit controls when receiving internal layer heating instructions, zone of heating heats glassy layer in automobile front windshield, controls the outer glassy layer of external heat layer to automobile front windshield heat when receiving outer heating instructions.
As the further prioritization scheme of system that a kind of automobile front windshield of the present invention is antifog, the scope of described default temperature difference threshold value is 17 degree to 25 degree.
As the further prioritization scheme of system that a kind of automobile front windshield of the present invention is antifog, described default temperature difference threshold value is 20 degree.
As the further prioritization scheme of system that a kind of automobile front windshield of the present invention is antifog, described additional thermosphere and interior zone of heating all adopt resistance wire to make.
As the further prioritization scheme of system that a kind of automobile front windshield of the present invention is antifog, described first adopts IC temperature sensor to three-temperature sensor.
As the further prioritization scheme of system that a kind of automobile front windshield of the present invention is antifog, described IC temperature sensor adopts DS18B20 type temperature sensor.
As the further prioritization scheme of system that a kind of automobile front windshield of the present invention is antifog, the processor of described control module adopts ARM series monolithic.
As the further prioritization scheme of system that a kind of automobile front windshield of the present invention is antifog, the processor of described control module adopts SAA7750 single-chip microcomputer.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1. structure is simple, easy to use;
2. can automatically environmentally judge whether to haze, automatically carry out demist.
Embodiment
Below technical scheme of the present invention is described in further detail:
The invention discloses the system that a kind of automobile front windshield is antifog, comprise the first to the 3rd temperature inductor, humidity sensor, heating module and control module;
Described heating module comprises additional thermosphere and interior zone of heating;
Described additional thermosphere is be arranged on the outer zone of heating between glassy layer and doubling layer of automobile front windshield, for heating the outer glassy layer of automobile front windshield;
Described interior zone of heating is be arranged on the zone of heating in automobile front windshield between glassy layer and doubling layer, for heating glassy layer in automobile front windshield;
Described first temperature inductor, humidity sensor are all arranged on the outer wall of car, are respectively used to respond to the temperature of car outer air and the humidity of car outer air;
Described second temperature inductor is arranged on the outer glassy layer of automobile front windshield, for responding to the temperature of the outer glassy layer of automobile front windshield;
Described 3rd temperature inductor is arranged in car, for responding to the temperature of air in car;
Described control module comprises calculation unit, differential thermal calculation unit, comparing unit and heating unit;
Described calculation unit is used for the dew point temperature calculating car outer air according to the temperature and humidity of car outer air;
Described differential thermal calculation unit for calculating the temperature difference of air themperature and car outer air temperature in car, and when the temperature difference of air themperature and car outer air temperature is more than or equal to default temperature difference threshold value in car, sends internal layer heating instructions to heating unit;
Described comparing unit for comparing the temperature of the dew point temperature of car outer air and the outer glassy layer of automobile front windshield, and when the temperature of the outer glassy layer of automobile front windshield is less than or equal to the dew point temperature of car outer air, sends outer heating instructions to heating unit;
In described heating unit controls when receiving internal layer heating instructions, zone of heating heats glassy layer in automobile front windshield, controls the outer glassy layer of external heat layer to automobile front windshield heat when receiving outer heating instructions.
The scope of described default temperature difference threshold value is 17 degree to 25 degree, is preferably 20 degree.
Described additional thermosphere and interior zone of heating all adopt resistance wire to make.
Described first adopts IC temperature sensor to three-temperature sensor.
Described IC temperature sensor adopts DS18B20 type temperature sensor.
The processor of described control module adopts ARM series monolithic.
The processor of described control module adopts SAA7750 single-chip microcomputer.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the system that automobile front windshield is antifog, is characterized in that, comprises the first to the 3rd temperature inductor, humidity sensor, heating module and control module;
Described heating module comprises additional thermosphere and interior zone of heating;
Described additional thermosphere is be arranged on the outer zone of heating between glassy layer and doubling layer of automobile front windshield, for heating the outer glassy layer of automobile front windshield;
Described interior zone of heating is be arranged on the zone of heating in automobile front windshield between glassy layer and doubling layer, for heating glassy layer in automobile front windshield;
Described first temperature inductor, humidity sensor are all arranged on the outer wall of car, are respectively used to respond to the temperature of car outer air and the humidity of car outer air;
Described second temperature inductor is arranged on the outer glassy layer of automobile front windshield, for responding to the temperature of the outer glassy layer of automobile front windshield;
Described 3rd temperature inductor is arranged in car, for responding to the temperature of air in car;
Described control module comprises calculation unit, differential thermal calculation unit, comparing unit and heating unit;
Described calculation unit is used for the dew point temperature calculating car outer air according to the temperature and humidity of car outer air;
Described differential thermal calculation unit for calculating the temperature difference of air themperature and car outer air temperature in car, and when the temperature difference of air themperature and car outer air temperature is more than or equal to default temperature difference threshold value in car, sends internal layer heating instructions to heating unit;
Described comparing unit for comparing the temperature of the dew point temperature of car outer air and the outer glassy layer of automobile front windshield, and when the temperature of the outer glassy layer of automobile front windshield is less than or equal to the dew point temperature of car outer air, sends outer heating instructions to heating unit;
In described heating unit controls when receiving internal layer heating instructions, zone of heating heats glassy layer in automobile front windshield, controls the outer glassy layer of external heat layer to automobile front windshield heat when receiving outer heating instructions.
2. the system that automobile front windshield according to claim 1 is antifog, is characterized in that, the scope of described default temperature difference threshold value is 17 degree to 25 degree.
3. the system that automobile front windshield according to claim 1 is antifog, is characterized in that, described default temperature difference threshold value is 20 degree.
4. the system that automobile front windshield according to claim 1 is antifog, is characterized in that, described additional thermosphere and interior zone of heating all adopt resistance wire to make.
5. the system that automobile front windshield according to claim 1 is antifog, is characterized in that, described first adopts IC temperature sensor to three-temperature sensor.
6. the system that automobile front windshield according to claim 5 is antifog, is characterized in that, described IC temperature sensor adopts DS18B20 type temperature sensor.
7. the system that automobile front windshield according to claim 1 is antifog, is characterized in that, the processor of described control module adopts ARM series monolithic.
8. the system that automobile front windshield according to claim 7 is antifog, is characterized in that, the processor of described control module adopts SAA7750 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410615909.8A CN104470011A (en) | 2014-11-06 | 2014-11-06 | Automobile foreside windshield anti-fog system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410615909.8A CN104470011A (en) | 2014-11-06 | 2014-11-06 | Automobile foreside windshield anti-fog system |
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| Publication Number | Publication Date |
|---|---|
| CN104470011A true CN104470011A (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410615909.8A Pending CN104470011A (en) | 2014-11-06 | 2014-11-06 | Automobile foreside windshield anti-fog system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109305126A (en) * | 2017-07-28 | 2019-02-05 | 马自达汽车株式会社 | The anti-smog device of vehicle |
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| EP1091624A2 (en) * | 1999-10-08 | 2001-04-11 | Visteon Global Technologies, Inc. | Windshield heating device |
| CN2683467Y (en) * | 2004-02-27 | 2005-03-09 | 陈家政 | Automobile glass capable of electrically defrosting and removing snow |
| JP2005256420A (en) * | 2004-03-11 | 2005-09-22 | Shin Nikkei Co Ltd | Current carrying control method and device for heat generating glass of sash |
| US20090206068A1 (en) * | 2008-02-19 | 2009-08-20 | Fuji Jukogyo Kabushiki Kaisha | Window-glass heating device |
| CN102438342A (en) * | 2011-09-26 | 2012-05-02 | 浙江吉利汽车研究院有限公司 | Vehicle window glass with heating function |
| CN102474914A (en) * | 2009-12-24 | 2012-05-23 | 乐金华奥斯有限公司 | Anti-fog heat-generating glass system, and method for controlling same |
| CN102555944A (en) * | 2010-12-08 | 2012-07-11 | 淄博高新区联创科技服务中心 | Antifogging method for automobile windshield |
| 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 |
| CN203851308U (en) * | 2014-05-04 | 2014-09-24 | 南车青岛四方机车车辆股份有限公司 | Vehicle front window glass electric heating device |
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1091624A2 (en) * | 1999-10-08 | 2001-04-11 | Visteon Global Technologies, Inc. | Windshield heating device |
| CN2683467Y (en) * | 2004-02-27 | 2005-03-09 | 陈家政 | Automobile glass capable of electrically defrosting and removing snow |
| JP2005256420A (en) * | 2004-03-11 | 2005-09-22 | Shin Nikkei Co Ltd | Current carrying control method and device for heat generating glass of sash |
| US20090206068A1 (en) * | 2008-02-19 | 2009-08-20 | Fuji Jukogyo Kabushiki Kaisha | Window-glass heating device |
| CN102474914A (en) * | 2009-12-24 | 2012-05-23 | 乐金华奥斯有限公司 | Anti-fog heat-generating glass system, and method for controlling same |
| CN102555944A (en) * | 2010-12-08 | 2012-07-11 | 淄博高新区联创科技服务中心 | Antifogging method for automobile windshield |
| CN102438342A (en) * | 2011-09-26 | 2012-05-02 | 浙江吉利汽车研究院有限公司 | Vehicle window glass with heating function |
| 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 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109305126A (en) * | 2017-07-28 | 2019-02-05 | 马自达汽车株式会社 | The anti-smog device of vehicle |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |