CN103847463B - A kind of control method automatically preventing automobile from hazing - Google Patents
A kind of control method automatically preventing automobile from hazing Download PDFInfo
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- CN103847463B CN103847463B CN201410117492.2A CN201410117492A CN103847463B CN 103847463 B CN103847463 B CN 103847463B CN 201410117492 A CN201410117492 A CN 201410117492A CN 103847463 B CN103847463 B CN 103847463B
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Abstract
The invention discloses a kind of control method automatically preventing automobile from hazing, the humiture collection module that a/c system comprises air-conditioner controller and is connected with air-conditioner controller, the feature of control method is, comprise: by the vehicle interior temperature of air in humiture collection module Real-time Collection car, the outer temperature of car and car humidity; Air-conditioner controller is according to vehicle interior temperature, and the outer temperature of car and relative humidity meter calculate the probability F that hazes; Air-conditioner controller controls blowing engine, inlet flap, pattern air door according to the probability F automatic defrosting that hazes.In the present invention, air-conditioner controller controls blowing engine, inlet flap, pattern air door according to the probability F automatic defrosting that hazes, and can prevent from hazing, avoid vehicle window to haze and just remove mist, decrease manual operation controller, add traffic safety.
Description
Technical field
The present invention relates to air conditioning for automobiles control technology field, specifically refer to a kind of control method automatically preventing automobile from hazing.
Background technology
The glass of automobile and the safety of automobile closely bound up, for observing the outer route of car when running car, thus safety is driven, the generation of minimizing accident.But if run into rainwater weather or winter, indoor glass can haze, and there will be fog inside front windshield, affects the driving of chaufeur, chaufeur may be allowed time serious to can't see the road conditions of vehicle front, there is very large potential safety hazard.Under normal circumstances, chaufeur can take many kinds of measures to eliminate the fog inside front windshield, as: towel off the fog inside front windshield; Opening vehicle window makes the heal differential inside and outside car reduce, and reaches the object of fog inside removing front windshield.Although above-mentioned demist measure can reach preferably except fog effect, towel off in vehicle traveling process and wipe front windshield, inherently there is certain potential safety hazard; Automobile hazes generally at sleety weather, opens vehicle window and can make sleet into the car, and people's cognition feels very uncomfortable.
Nowadays the on-board air conditioner of automobile generally all has defogging mode, the weather easily hazed, and uses on-board air conditioner demist, safe and effective.As a kind of automobile automatic defrosting system and the control method thereof of Chinese patent literature publication number CN102991440A, comprising: (1) vehicle ignition ON gear switch (K1) closes, automatic defrosting system startup work, (2) vehicle speed signal of central controller real-time reception car speed sensor detection, when central controller judges that vehicle current vehicle speed situation is non-vanishing, central controller controls four door contact interrupters and closes, (3) the car outer air humidity value that in the car that detects of central controller real-time reception humidity sensor one, air humidity value and humidity sensor two detect, central controller receives the vehicle interior temperature value of temperature sensor one and the outer temperature value of car of temperature sensor two simultaneously, outside described central controller contrast car, interior humidity value and temperature value, when the outer humidity value gap of car humidity value and car large and in car air humidity value be greater than being preset in reference to humidity value of setting and the outer temperature of car much larger than vehicle interior temperature value time, then central controller control window system automatically close vehicle window and give air conditioning system controller control command, a/c system starts automatic defrosting pattern, progressive motor adjusts air port and rotates to Windshield, several temperature sections are preset with in described central controller, described each temperature section has upper lower limit value, and each temperature section correspondence is provided with control command, the simultaneously vehicle interior temperature value that detects of central controller real-time reception temperature sensor one device, described centralized control contrast preset temperature upper lower limit value determines that the vehicle interior temperature value detected makes corresponding control command adjustment a/c system whether automatic defrosting pattern and control air quantity and leaving air temp in the temperature section of correspondence simultaneously.
Although above-mentioned patent can open on-board air conditioner automatic defrosting, but its control method be according to when the outer humidity value gap of car humidity value and car large and in car air humidity value be greater than being preset in reference to humidity value of setting and the outer temperature of car much larger than ability automatic defrosting pattern during vehicle interior temperature value, this judgement just remove mist according to easily causing vehicle window to haze, or in car, humiture is very high just starts demist, affect the traveling comfort of occupant, and cannot realize preventing from hazing, the therefore inadequate generalization of this device and intellectuality; Secondly, enter defogging mode, air quantity is very large, likely brings comfortableness problem to occupant.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, a kind of control method automatically preventing automobile from hazing is provided, improve Performance for Air Conditioning Systems, reduce vehicle front windshield and to haze probability, reach the object of traffic safety.
The object of the invention is to be achieved through the following technical solutions:
Automatically prevent the control method that automobile hazes, the humiture collection module that a/c system comprises air-conditioner controller and is connected with air-conditioner controller, the feature of control method is, comprising:
By the vehicle interior temperature of air in humiture collection module Real-time Collection car, the outer temperature of car and car humidity;
Air-conditioner controller is according to vehicle interior temperature, and the outer temperature of car and relative humidity meter calculate the probability F that hazes;
Air-conditioner controller controls blowing engine, inlet flap, pattern air door according to the probability F automatic defrosting that hazes.
Concrete, described in the haze computing formula of probability F be:
F=[H
RH+C
1-f(T
Incar-T
ambient)]×C
2÷100，
Wherein, H
rHfor car humidity value, recorded by car humidity sensor;
T
incarfor vehicle interior temperature value, recorded by vehicle interior temperature sensor;
T
ambientfor the outer temperature value of car, recorded by the outer temperature sensor of car;
F (T
incar-T
ambient) for demarcate by experiment, according to the probability function that hazes that the difference of the inside and outside temperature of car obtains; C
1and C
2for constant, demarcate according to concrete vehicle and obtain.
Concrete, described C
1general representative value is 45, C
2general representative value be 80.
Concrete, described f (T
incar-T
ambient) for independent variable be T
incar-T
ambientfunction, its corresponding relation is as follows:
| [T Incar-T ambient] get round up after difference | f(T Incar-T ambient) value |
| 0 | 100 |
| 5 | 82 |
| 10 | 75 |
| 15 | 70 |
| 20 | 67 |
| 25 | 63 |
| 30 | 54 |
| 35 | 51 |
| 40 | 48 |
| 45 | 40 |
| 50 | 37 |
| 55 | 34 |
| 60 | 30 |
| 65 | 28 |
| 70 | 22 |
| 75 | 18 |
| 80 | 15 |
| 85 | 13 |
Concrete, described blowing engine according to the concrete steps of the probability automatic defrosting that hazes is:
According to the described probability that hazes, blowing engine both end voltage is compensated.
Concrete, described air-conditioner controller is connected with memory module, and described memory module stores the mapping table of the offset voltage at haze probability and blowing engine two ends.
Concrete, described inlet flap according to the concrete steps of the probability automatic defrosting that hazes is:
Setting the current probability that hazes is F, and the critical value of outer circulation is L, and the threshold value of Inner eycle is Y, wherein L>Y, then:
As F<Y, start Inner eycle;
As F>L, start outer circulation;
When F between Y and L therebetween time, the air inlet pattern before use.
If in order to avoid hazing probability near critical value, inner-outer circulation may be caused frequently to switch, like this traveling comfort is impacted, therefore, as F<L-Y, allow to be switched to Inner eycle.
Concrete, described pattern air door according to the concrete steps of the probability automatic defrosting that hazes is:
According to the described probability that hazes, pattern damper positions is compensated.
Described memory module stores the mapping table of the compensated position of haze probability and pattern damper positions.
The present invention has the following advantages and beneficial effect compared to existing technology:
1, control method air-conditioner controller of the present invention controls blowing engine, inlet flap, pattern air door according to the probability F automatic defrosting that hazes, and can prevent from hazing, avoid vehicle window to haze and just remove mist, decrease manual operation controller, add traffic safety.
2, after control method of the present invention enters defogging mode, blowing engine, inlet flap, pattern air door all adjust or compensate corresponding variable according to the size of the probability that hazes, change actr state sequentially, improve the overall performance of a/c system and the traveling comfort of occupant.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the corresponding relation figure of offset voltage at probability and blowing engine two ends of hazing.
Fig. 3 is the corresponding relation figure of compensated position of probability and pattern damper positions of hazing.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, the present embodiment provides a kind of control method automatically preventing automobile from hazing, the humiture collection module that a/c system comprises air-conditioner controller and is connected with air-conditioner controller, and the feature of control method is, comprising:
By the vehicle interior temperature of air in humiture collection module Real-time Collection car, the outer temperature of car and car humidity;
Air-conditioner controller is according to vehicle interior temperature, and the outer temperature of car and relative humidity meter calculate the probability F that hazes;
Air-conditioner controller controls blowing engine, inlet flap, pattern air door according to the probability F automatic defrosting that hazes.
Concrete, described in the haze computing formula of probability F be:
F=[H
RH+C
1-f(T
Incar-T
ambient)]×C
2÷100，
Wherein, H
rHfor car humidity value, recorded by car humidity sensor;
T
incarfor vehicle interior temperature value, recorded by vehicle interior temperature sensor;
T
ambientfor the outer temperature value of car, recorded by the outer temperature sensor of car;
F (T
incar-T
ambient) for demarcate by experiment, according to the probability function that hazes that the difference of the inside and outside temperature of car obtains; C
1and C
2for constant, demarcate according to concrete vehicle and obtain.
Concrete, described C
1general representative value is 45, C
2general representative value be 80.
Concrete, described f (T
incar-T
ambient) for independent variable be T
incar-T
ambientfunction, its corresponding relation is as follows:
| [T Incar-T ambient] get round up after difference | f(T Incar-T ambient) value |
| 0 | 100 |
| 5 | 82 |
| 10 | 75 |
| 15 | 70 |
| 20 | 67 |
| 25 | 63 |
| 30 | 54 |
| 35 | 51 |
| 40 | 48 |
| 45 | 40 |
| 50 | 37 |
| 55 | 34 |
| 60 | 30 |
| 65 | 28 |
| 70 | 22 |
| 75 | 18 |
| 80 | 15 |
| 85 | 13 |
Concrete, described blowing engine according to the concrete steps of the probability automatic defrosting that hazes is:
According to the described probability that hazes, blowing engine both end voltage is compensated.
Concrete, described air-conditioner controller is connected with memory module, and described memory module stores the mapping table of the offset voltage at haze probability and blowing engine two ends.For the different probability that hazes, compensate different to blowing engine both end voltage, the mapping table of the offset voltage at concrete haze probability and blowing engine two ends is a curve, and as shown in Figure 2, transverse axis is the probability that hazes, and the longitudinal axis is the offset voltage at blowing engine two ends.
Concrete, described inlet flap according to the concrete steps of the probability automatic defrosting that hazes is:
Setting the current probability that hazes is F, and the critical value of outer circulation is L, and the threshold value of Inner eycle is Y, wherein L>Y, then:
As F<Y, start Inner eycle;
As F>L, start outer circulation;
When F between Y and L therebetween time, the air inlet pattern before use.
If in order to avoid hazing probability near critical value, inner-outer circulation may be caused frequently to switch, like this traveling comfort is impacted, therefore, as F<L-Y, allow to be switched to Inner eycle.
Concrete, the general representative value of the general representative value 75%, threshold value L of described critical value Y is 80%.
Concrete, described pattern air door according to the concrete steps of the probability automatic defrosting that hazes is:
According to the described probability that hazes, pattern damper positions is compensated.
Described memory module stores the mapping table of the compensated position of haze probability and pattern damper positions.Concrete, for the different probability that hazes, compensate different to pattern damper positions, the mapping table of the compensated position of concrete haze probability and pattern damper positions is a curve, and as Fig. 3, transverse axis is the probability that hazes, and the longitudinal axis is the compensated position of pattern air door.
After adopting method of the present invention to be applied to automobile air conditioner control system, after humiture collection module Real-time Collection to current warm and humid angle value, relatively warm and humid humidity value can be changed into the probability that hazes, control blowing engine, inlet flap, pattern air door again according to the probability F automatic operation that hazes, play and prevent from hazing and the object of automatic defrosting, avoid vehicle window to haze and just remove mist, decrease manual operation controller, add traffic safety; After entering defogging mode, the compensation increase of blower air quantity, control steadily, effectively to change the state of actr, traveling comfort improves.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (9)
1. automatically prevent the control method that automobile hazes, the humiture collection module that a/c system comprises air-conditioner controller and is connected with air-conditioner controller, the feature of control method is, comprising:
By the vehicle interior temperature of air in humiture collection module Real-time Collection car, the outer temperature of car and car humidity;
Air-conditioner controller is according to vehicle interior temperature, and the outer temperature of car and relative humidity meter calculate the probability F that hazes;
Air-conditioner controller controls blowing engine, inlet flap, pattern air door according to the probability F automatic defrosting that hazes, wherein, described in the haze computing formula of probability F be:
F＝[H
RH+C
1-f(T
Incar-T
ambient)]×C
2÷100，
Wherein, H
rHfor car humidity value, recorded by car humidity sensor;
T
incarfor vehicle interior temperature value, recorded by vehicle interior temperature sensor;
T
ambientfor the outer temperature value of car, recorded by the outer temperature sensor of car;
F (T
incar-T
ambient) for demarcate by experiment, according to the probability function that hazes that the difference of the inside and outside temperature of car obtains; C
1and C
2for constant, demarcate according to concrete vehicle and obtain.
2. the control method automatically preventing automobile from hazing according to claim 1, is characterized in that: described C
1general representative value is 45, C
2general representative value be 80.
3. the control method automatically preventing automobile from hazing according to claim 1 or 2, is characterized in that: described f (T
incar-T
ambient) for independent variable be T
incar-T
ambientfunction, its corresponding relation is as follows:
。
4. the control method automatically preventing automobile from hazing according to any one of claim 1-2, is characterized in that: described blowing engine according to the concrete steps of the probability automatic defrosting that hazes is:
According to the described probability that hazes, blowing engine both end voltage is compensated.
5. the control method automatically preventing automobile from hazing according to claim 4, is characterized in that: described air-conditioner controller is connected with memory module, described memory module stores the mapping table of the offset voltage at haze probability and blowing engine two ends.
6. the control method automatically preventing automobile from hazing according to any one of claim 1-2, is characterized in that: described inlet flap according to the concrete steps of the probability automatic defrosting that hazes is:
Setting the current probability that hazes is F, and the critical value of outer circulation is L, and the threshold value of Inner eycle is Y, wherein L>Y, then:
As F<Y, start Inner eycle;
As F>L, start outer circulation;
When F between Y and L therebetween time, the air inlet pattern before use.
7. the control method automatically preventing automobile from hazing according to claim 6, is characterized in that: as F<L-Y, allows to be switched to Inner eycle.
8. the control method automatically preventing automobile from hazing according to any one of claim 1-2, is characterized in that: described pattern air door according to the concrete steps of the probability automatic defrosting that hazes is:
According to the described probability that hazes, pattern damper positions is compensated.
9. the control method automatically preventing automobile from hazing according to claim 5, is characterized in that: described memory module stores the mapping table of the compensated position of haze probability and pattern damper positions.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410117492.2A CN103847463B (en) | 2014-03-26 | 2014-03-26 | A kind of control method automatically preventing automobile from hazing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410117492.2A CN103847463B (en) | 2014-03-26 | 2014-03-26 | A kind of control method automatically preventing automobile from hazing |
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| CN103847463A CN103847463A (en) | 2014-06-11 |
| CN103847463B true CN103847463B (en) | 2016-02-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023001879A1 (en) | 2022-05-10 | 2023-11-16 | Mercedes-Benz Group AG | Fog prevention system in a vehicle and method therefor |
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| KR101924061B1 (en) | 2016-01-07 | 2018-11-30 | 엘지전자 주식회사 | Auxiliary apparatus for vehicle and Vehicle |
| CN105667251B (en) * | 2016-02-18 | 2017-09-29 | 广东欧珀移动通信有限公司 | A kind of automobile defogging method and device |
| CN106114135A (en) * | 2016-07-22 | 2016-11-16 | 奇瑞汽车股份有限公司 | Automobile interior exterior circulation controlling means and system |
| CN107458177B (en) * | 2017-08-02 | 2019-05-07 | 安徽江淮汽车集团股份有限公司 | Automobile air-conditioner control method and system |
| CN108891225A (en) * | 2018-06-19 | 2018-11-27 | 珠海格力电器股份有限公司 | The determination method and device of on-board air conditioner air intake mode |
| CN109866733B (en) * | 2019-03-28 | 2022-06-07 | 重庆长安汽车股份有限公司 | Automatic defogging system and method |
| CN111976413B (en) * | 2019-05-21 | 2022-03-22 | 长城汽车股份有限公司 | Vehicle air conditioner control device and method, vehicle air conditioner and vehicle |
| CN110217200A (en) * | 2019-05-28 | 2019-09-10 | 浙江吉利控股集团有限公司 | A kind of vehicle windscreen defogging method, device and equipment |
| CN111497555B (en) * | 2020-04-24 | 2022-05-17 | 重庆长安汽车股份有限公司 | Heating method for automobile air conditioner |
| CN112124249B (en) * | 2020-09-22 | 2024-03-29 | 上海福太隆汽车电子科技有限公司 | Automatic demisting control method |
| CN112158166B (en) * | 2020-09-30 | 2023-03-28 | 重庆长安汽车股份有限公司 | Control method for automatic demisting of automobile and automobile |
| CN112848838B (en) * | 2021-01-18 | 2022-10-28 | 中国第一汽车股份有限公司 | Fog-proof control method for low-temperature high-speed working condition of vehicle |
| CN113942365A (en) * | 2021-10-28 | 2022-01-18 | 东风汽车有限公司东风日产乘用车公司 | Vehicle-mounted air conditioner control method, device, equipment and storage medium |
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