CN103978866A - Method for controlling blowing mode of automobile automatic air conditioner - Google Patents
Method for controlling blowing mode of automobile automatic air conditioner Download PDFInfo
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- CN103978866A CN103978866A CN201410195951.9A CN201410195951A CN103978866A CN 103978866 A CN103978866 A CN 103978866A CN 201410195951 A CN201410195951 A CN 201410195951A CN 103978866 A CN103978866 A CN 103978866A
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Abstract
The invention relates to a method for controlling the blowing mode of an automobile automatic air conditioner. The method comprises the following steps of 1, calculating the blowing mode of the automobile automatic air conditioner; 2, judging whether the rotating speed Vspeed of an engine is greater than a preset rotating-speed threshold value Voffset or not; if so, then executing step 3; otherwise, executing step 7; 3, calculating a stroke enhancing value A according to the rotating speed Vspeed of the engine; 4, calculating the temperature difference delta T of currently detected outlet-air temperature and last-time detected outlet-air temperature; 5, judging whether the absolute value of the difference of the temperature difference delta T and the stroke enhancing value A is smaller than a preset temperature-difference threshold value delta t or not; if so, then executing step 6; otherwise, executing step 7; 6, adjusting the blowing mode according to the currently detected outlet-air temperature; 7, keeping the current blowing mode. Therefore, the inaccuracy of the outlet-air temperature detected by a temperature sensor due to the influences of other factors is avoided, and the blowing mode of the automobile automatic air conditioner is guaranteed, so that the environmental comfort level in an automobile is high.
Description
Technical field
The present invention relates to automobile air conditioning technology field, be specifically related to a kind of control method of auto Air Conditioner blowing pattern.
Background technology
Along with expanding economy, automobile is widely used as a kind of easy to use, quick and economical and practical vehicle.Along with the raising of people's living standard, people are also more and more higher to the requirement of automobile each side.Except the speed to automobile, requirement attractive in appearance, amusement function are very high, people require also more and more higher to the level of comfort of environment inside car.Air conditioning for automobiles is a key factor that affects environment inside car comfort level, if vehicle interior temperature is higher, chaufeur is easily felt sleepy, the absorbed degree that impact is driven, thus affect to a certain extent the safety of driving a vehicle; If vehicle interior temperature is too low, the limbs hand of chaufeur is cold and cause alerting ability to reduce, and then has affected the safety of driving.
Automatic air conditioning controller is main according to setting out air temperature, circulation pattern, the outer temperature of car, leaving air temp computation schema damper positions, and calculates blowing pattern according to pattern damper positions.The factor that affects leaving air temp mainly comprises rotating speed of automobile engine, inner-outer circulation pattern, the outer temperature of car etc., and wherein rotating speed of automobile engine is faster, and its impact on blowing engine air-out volume is larger, and then also larger on the impact of leaving air temp.
Described leaving air temp mainly obtains by the temperature sensor detection being arranged on evaporator, but the observed reading of temperature sensor can be affected by other factors (as bad contact, hot conduction eror and inner-outer circulation pattern etc.), cause the observed reading deviation of actual leaving air temp and temperature sensor larger, and then causing the requirement of the blowing pattern out of reach environment inside car comfort level of auto Air Conditioner, user experience is poor.
In addition,, in prior art, the blowing pattern of auto Air Conditioner is to do continuous setup according to the target location of pattern air door; In the time that external environment (temperature outside car, solar radiation etc.) is more changeable, for example tunnel, hill path etc., the fluctuation of leaving air temp also can be comparatively frequent, thereby cause the position of pattern air door frequently to be adjusted, and then cause blowing pattern frequently to change, affect the comfort level of environment inside car.
Summary of the invention
The object of the invention is to overcome shortcomings and deficiencies of the prior art, a kind of control method of auto Air Conditioner blowing pattern is provided, improve the comfort level of environment inside car.
Object of the present invention is achieved through the following technical solutions: a kind of control method of auto Air Conditioner blowing pattern, it is characterized in that, and comprise the following steps:
The blowing pattern of step 1, calculating auto Air Conditioner;
Step 2, judge whether engine speed Vspeed is greater than default rotary speed threshold value Voffset, if perform step 3, otherwise execution step 7;
Step 3, calculate stroke enhancing value A according to the rotating speed Vspeed of driving engine;
The heal differential △ T of the leaving air temp of step 4, the leaving air temp that calculates current detection and last time detection;
Step 5, judges whether the absolute value of the difference of heal differential △ T and stroke enhancing value A is less than default heal differential threshold value △ t, if perform step 6, otherwise execution step 7;
The leaving air temp of step 6, current detection is effective, and according to the leaving air temp adjustment blowing pattern of current detection;
The leaving air temp of step 7, current detection is invalid, keeps current blowing pattern.
As preferably, described step 3 is specially: stroke enhancing value A=(Vspeed-Voffset) * Vcf, wherein, Vcf is the compensating factor of blowing pattern.
As preferably, described heal differential threshold value △ t=1 DEG C.
As preferably, the control method of described auto Air Conditioner blowing pattern also comprises and presets each blowing pattern step of Ln between corresponding default mode damper positions Kn and corresponding stagnant regions thereof respectively.
As preferably, described step 1 is specially:
According to leaving air temp, vehicle interior temperature, the outer temperature of car, evaporator temperature and the temperature computation pattern damper positions k of foot;
Ln between the stagnant regions under judgment model damper positions k;
Pattern damper positions k is adjusted into the default mode damper positions Kn that between above-mentioned stagnant regions, Ln is corresponding;
Calculate blowing pattern according to the pattern damper positions k after adjusting.
As preferably, the step of the described blowing of the leaving air temp adjustment according to current detection pattern is specially: using the leaving air temp of current detection as leaving air temp, and perform step 1.
As preferably, the control method of described blowing pattern also comprises that blowing mode adjustment, to the step of blowing window pattern, is guaranteed the safety of driving when auto Air Conditioner is when being manually set to maximum demist state.
As preferably, the control method of described blowing pattern also comprises that blowing mode adjustment, to the step of blowing face pattern, is further guaranteed the comfort level of environment inside car when auto Air Conditioner is when being manually set to maximum refrigerating state.
As preferably, the control method of described blowing pattern judges whether to satisfy condition 1 simultaneously while also comprising each automobile starting, condition 2 and condition 3, blows window pattern if be automatically adjusted to, otherwise execution step 1, wherein,
Condition 1: after vehicle launch in 3 seconds;
Condition 2: the outer temperature of car is than more than the high M of evaporator temperature DEG C;
Condition 3: evaporator temperature is lower than predetermined threshold value temperature B.
As preferably, described predetermined threshold value temperature B is 0-5 DEG C.
As preferably, described condition 2 is: the outer temperature of car is higher more than 3 DEG C than evaporator temperature.
The present invention comprises following advantage and beneficial effect compared to existing technology:
(1) the present invention judges whether the saltus step of the leaving air temp detecting is caused by the change of the speed of a motor vehicle (engine speed), avoid temperature sensor to cause the leaving air temp misalignment of its detection because of the impact of other factors, guarantee that the blowing pattern of auto Air Conditioner makes environment inside car comfort level high.
(2) pattern damper positions corresponding to pattern of respectively drying is discrete value, pattern damper positions corresponding to the blowing pattern in prior art of solving is continuous, thereby cause the fluctuation of pattern damper positions frequent, and then the problem that causes blowing pattern frequently to change, when guaranteeing the comfort level of environment inside car, guarantee that environment inside car is stable, avoid environment inside car to fluctuate frequently, thereby improve environment inside car comfort level.
(3), when auto Air Conditioner is when being manually set to maximum demist state, blowing mode adjustment, to blowing window pattern, is guaranteed the safety of driving.
(4), when auto Air Conditioner is when being manually set to maximum refrigerating state, blowing mode adjustment, to blowing face pattern, is further guaranteed the comfort level of environment inside car.
(5) if meet the condition that hazes when each automobile starting, be automatically adjusted to and blow window pattern, while preventing automobile starting, haze, affect traffic safety.
Brief description of the drawings
Fig. 1 is the diagram of circuit of the control method of auto Air Conditioner blowing pattern in the present embodiment;
Fig. 2 is the particular flow sheet that calculates the blowing pattern of auto Air Conditioner;
Fig. 3 is the coordinate diagram that is related to of blowing pattern and pattern damper positions;
Fig. 4 is the coordinate diagram that is related to that sets out air temperature and pattern damper positions;
Fig. 5 is the coordinate diagram that is related to of leaving air temp and pattern damper positions;
Fig. 6 is the coordinate diagram that is related to of the outer temperature of car and pattern damper positions.
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 to this.
Embodiment
As shown in Figure 1, a kind of control method of auto Air Conditioner blowing pattern, specifically comprises the following steps:
S1 presets each blowing pattern and distinguishes Ln (L0, L1, L2, L3, L4) between the stagnant regions of corresponding default mode damper positions Kn (K0, K1, K2, K3, K4) and correspondence thereof.With reference to figure 3, Fig. 4, Fig. 5, Fig. 6, K0, for blowing window pattern, is L0 between its corresponding stagnant regions; K1 blows pin pattern for blowing window, between its corresponding stagnant regions, is L1; K2, for blowing pin pattern, is L2 between its corresponding stagnant regions; K3, for blowing top blast pin pattern, is L3 between its corresponding stagnant regions; K4, for blowing surface model, is L4 between its corresponding stagnant regions.
S2 calculates the blowing pattern of auto Air Conditioner.As shown in Figure 2, specific as follows:
S21 is according to leaving air temp, vehicle interior temperature, the outer temperature of car, evaporator temperature and the temperature computation pattern damper positions k of foot;
Ln between the stagnant regions under S22 judgment model damper positions k, wherein n is any one number in 0,1,2,3,4;
Pattern damper positions k is adjusted into the default mode damper positions Kn that between above-mentioned stagnant regions, Ln is corresponding by S23;
S24 calculates blowing pattern, k=Kn according to the pattern damper positions k after adjusting.
S3 judges whether engine speed Vspeed is greater than default rotary speed threshold value Voffset, if perform step S4, otherwise execution step S8.Described rotary speed threshold value Voffset demarcates acquisition by real vehicle.
S4 calculates stroke enhancing value A according to the rotating speed Vspeed of driving engine, A=(Vspeed-Voffset) * Vcf, and wherein, Vcf is leaving air temp compensating factor, demarcates acquisition by real vehicle.
S5 calculates the leaving air temp of current detection and the heal differential △ T of the last leaving air temp detecting.Auto Air Conditioner detects air temperature by temperature sensor timing.
S6 judges whether the absolute value of the difference of heal differential △ T and stroke enhancing value A is less than default heal differential threshold value △ t, if perform step S7, otherwise execution step S8.Wherein heal differential threshold value △ t=1 DEG C.
The leaving air temp of S7 current detection is effective, and according to the leaving air temp adjustment blowing pattern of current detection.Be specially: using the leaving air temp of current detection as leaving air temp, and perform step S2.
The leaving air temp of S8 current detection is invalid, keeps current blowing pattern.
When auto Air Conditioner is when being manually set to maximum demist state, blowing mode adjustment, to blowing window pattern, improves the safety of driving.
When auto Air Conditioner is when being manually set to maximum refrigerating state, blowing mode adjustment, to blowing face pattern, is further guaranteed the comfort level of environment inside car.
The control method of described auto Air Conditioner blowing pattern judges whether to satisfy condition 1 simultaneously while also comprising each automobile starting, condition 2 and condition 3, blow window pattern if be automatically adjusted to, otherwise the step of execution step 1, hazes while preventing automobile starting, thereby improve traffic safety.Wherein,
Condition 1: after vehicle launch in 3 seconds.
Condition 2: the outer temperature of car is than more than the high M of evaporator temperature DEG C, and wherein M specifically arranges different preferred values according to different vehicles, is generally preferably 3.
Condition 3: evaporator temperature is lower than predetermined threshold value temperature B, and wherein predetermined threshold value temperature B specifically arranges different preferred values according to different vehicles, is generally preferably 5 DEG C.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (10)
1. a control method for auto Air Conditioner blowing pattern, is characterized in that, comprises the following steps:
The blowing pattern of step 1, calculating auto Air Conditioner;
Step 2, judge whether engine speed Vspeed is greater than default rotary speed threshold value Voffset, if perform step 3, otherwise execution step 7;
Step 3, calculate stroke enhancing value A according to the rotating speed Vspeed of driving engine;
The heal differential △ T of the leaving air temp of step 4, the leaving air temp that calculates current detection and last time detection;
Step 5, judges whether the absolute value of the difference of heal differential △ T and stroke enhancing value A is less than default heal differential threshold value △ t, if perform step 6, otherwise execution step 7;
The leaving air temp of step 6, current detection is effective, and according to the leaving air temp adjustment blowing pattern of current detection;
The leaving air temp of step 7, current detection is invalid, keeps current blowing pattern.
2. the control method of auto Air Conditioner blowing pattern according to claim 1, is characterized in that, described step 3 is specially: stroke enhancing value A=(Vspeed-Voffset) * Vcf, wherein, Vcf is the compensating factor of blowing pattern.
3. the control method of auto Air Conditioner blowing pattern according to claim 2, is characterized in that: described heal differential threshold value △ t=1 DEG C.
4. the control method of auto Air Conditioner blowing pattern according to claim 1, is characterized in that: the control method of described auto Air Conditioner blowing pattern also comprises the step of Ln between the stagnant regions that presets default mode damper positions Kn corresponding to each blowing pattern difference and correspondence thereof.
5. the control method of auto Air Conditioner blowing pattern according to claim 4, is characterized in that, described step 1 is specially:
According to leaving air temp, vehicle interior temperature, the outer temperature of car, evaporator temperature and the temperature computation pattern damper positions k of foot;
Ln between the stagnant regions under judgment model damper positions k;
Pattern damper positions k is adjusted into the default mode damper positions Kn that between above-mentioned stagnant regions, Ln is corresponding;
Calculate blowing pattern according to the pattern damper positions k after adjusting.
6. the control method of auto Air Conditioner blowing pattern according to claim 5, it is characterized in that, the step of the described blowing of the leaving air temp adjustment according to current detection pattern is specially: using the leaving air temp of current detection as leaving air temp, and perform step 1.
7. according to the control method of the auto Air Conditioner blowing pattern described in claim 1 to 6 any one, it is characterized in that: the control method of described blowing pattern also comprises that, when auto Air Conditioner is when being manually set to maximum demist state, blowing mode adjustment is to the step of blowing window pattern.
8. according to the control method of the auto Air Conditioner blowing pattern described in claim 1 to 6 any one, it is characterized in that: the control method of described blowing pattern also comprises that, when auto Air Conditioner is when being manually set to maximum refrigerating state, blowing mode adjustment is to the step of blowing face pattern.
9. according to the control method of the auto Air Conditioner blowing pattern described in claim 1 to 6 any one, it is characterized in that, the control method of described blowing pattern judges whether to satisfy condition 1 simultaneously while also comprising each automobile starting, condition 2 and condition 3, blow window pattern if be automatically adjusted to, otherwise execution step 1, wherein
Condition 1: after vehicle launch in 3 seconds;
Condition 2: the outer temperature of car is than more than the high M of evaporator temperature DEG C;
Condition 3: evaporator temperature is lower than predetermined threshold value temperature B.
10. the control method of auto Air Conditioner blowing pattern according to claim 9, is characterized in that, described condition 2 is: the outer temperature of car is higher more than 3 DEG C than evaporator temperature.
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| CN201410195951.9A CN103978866B (en) | 2014-05-09 | 2014-05-09 | A kind of control method of auto Air Conditioner blowing pattern |
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Cited By (2)
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| CN107554234A (en) * | 2016-07-01 | 2018-01-09 | 现代自动车株式会社 | Air-conditioner control system and method for vehicle |
| CN110816210A (en) * | 2019-11-13 | 2020-02-21 | 奇瑞新能源汽车股份有限公司 | Air conditioner operation control method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107554234A (en) * | 2016-07-01 | 2018-01-09 | 现代自动车株式会社 | Air-conditioner control system and method for vehicle |
| CN107554234B (en) * | 2016-07-01 | 2022-07-05 | 现代自动车株式会社 | Air conditioning control system and method for vehicle |
| CN110816210A (en) * | 2019-11-13 | 2020-02-21 | 奇瑞新能源汽车股份有限公司 | Air conditioner operation control method and device |
| CN110816210B (en) * | 2019-11-13 | 2022-07-19 | 奇瑞新能源汽车股份有限公司 | Air conditioner operation control method and device |
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| CN103978866B (en) | 2016-06-15 |
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