CN103978866B - A kind of control method of auto Air Conditioner blowing pattern - Google Patents
A kind of control method of auto Air Conditioner blowing pattern Download PDFInfo
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- CN103978866B CN103978866B CN201410195951.9A CN201410195951A CN103978866B CN 103978866 B CN103978866 B CN 103978866B CN 201410195951 A CN201410195951 A CN 201410195951A CN 103978866 B CN103978866 B CN 103978866B
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Abstract
The present invention relates to a kind of auto Air Conditioner blowing pattern control method, comprise the following steps: step 1, calculate auto Air Conditioner blowing pattern; Step 2, judging that whether engine speed Vspeed is more than default rotary speed threshold value Voffset, if then performing step 3, otherwise performing step 7; Step 3, calculate stroke enhancement value A according to the rotating speed Vspeed of electromotor; The temperature difference △ T of the leaving air temp of step 4, the leaving air temp calculating current detection and last time detection; Step 5, it is judged that the absolute value of the difference of temperature difference △ T and stroke enhancement value A, whether less than default temperature difference threshold value △ t, if then performing step 6, otherwise performs step 7; Step 6, pattern of drying according to the leaving air temp adjustment of current detection; Step 7, keep currently drying pattern. Temperature sensor is avoided to cause the leaving air temp misalignment of its detection because of the impact of other factors, it is ensured that the blowing pattern of auto Air Conditioner makes environment inside car comfort level high.
Description
Technical field
The present invention relates to automobile air conditioning technology field, be specifically related to the control method of a kind 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 vehicles. 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 of automobile, requirement attractive in appearance, amusement function is very high, the level of comfort of environment inside car is required also more and more higher by people. Air conditioning for automobiles is the key factor affecting environment inside car comfort level, if vehicle interior temperature is higher, then driver easily feels sleepy, and the absorbed degree that impact is driven, thus have impact on the safety of driving to a certain extent; If vehicle interior temperature is too low, the limbs hands of driver is cold and causes that motility reduces, and then have impact on the safety of driving.
Automatic air conditioning controller is mainly according to arranging leaving air temp, circulation pattern, car outer temperature, leaving air temp computation schema damper positions, and calculates blowing pattern according to pattern damper positions. The factor affecting leaving air temp mainly includes rotating speed of automobile engine, inner-outer circulation pattern, the outer temperature of car etc., and wherein rotating speed of automobile engine is more fast, and it is more big on the impact of aerator air-out volume, and then the impact of leaving air temp is also more big.
Described leaving air temp obtains mainly through the temperature sensor detection arranged on an evaporator, but the measured value of temperature sensor can be affected by other factors (such as loose contact, conduction of heat error and inner-outer circulation pattern etc.), cause that actual leaving air temp is bigger with the measured value deviation of temperature sensor, and then causing that the blowing pattern of auto Air Conditioner does not reach the requirement of environment inside car comfort level, user experience is poor.
Additionally, in prior art, the blowing pattern of auto Air Conditioner is that continuous adjustment is done in the target location according to pattern air door; When external environment (the outer temperature of car, solar radiation etc.) is relatively more changeable, for instance tunnel, hill path etc., the fluctuation of leaving air temp also can be comparatively frequent, thus causing that the position of pattern air door frequently adjusts, and then causing that blowing pattern frequently changes, affecting the comfort level of environment inside car.
Summary of the invention
It is an object of the invention to overcome shortcomings and deficiencies of the prior art, it is provided that the control method of a kind of auto Air Conditioner blowing pattern, improve the comfort level of environment inside car.
The purpose of the present invention is achieved through the following technical solutions: the control method of a kind of auto Air Conditioner blowing pattern, it is characterised in that comprise the following steps:
Step 1, calculate auto Air Conditioner blowing pattern;
Step 2, judging that whether engine speed Vspeed is more than default rotary speed threshold value Voffset, if then performing step 3, otherwise performing step 7;
Step 3, calculate stroke enhancement value A according to the rotating speed Vspeed of electromotor;
The temperature difference △ T of the leaving air temp of step 4, the leaving air temp calculating current detection and last time detection;
Step 5, it is judged that the absolute value of the difference of temperature difference △ T and stroke enhancement value A, whether less than default temperature difference threshold value △ t, if then performing step 6, otherwise performs step 7;
Step 6, current detection leaving air temp effective, and dry pattern according to the leaving air temp adjustment of current detection;
Step 7, current detection leaving air temp invalid, keep currently drying pattern.
As preferably, described step 3 is particularly as follows: stroke enhancement value A=(Vspeed-Voffset) * Vcf, and wherein, Vcf is the penalty coefficient of blowing pattern.
As preferably, described temperature difference threshold value △ t=1 DEG C.
As preferably, the control method of described auto Air Conditioner blowing pattern also includes the step presetting the sluggish interval Ln of each blowing pattern default mode damper positions Kn corresponding respectively and correspondence thereof.
As preferably, described step 1 particularly as follows:
According to leaving air temp, vehicle interior temperature, the outer temperature of car, evaporator temperature and foot temperature computation pattern damper positions k;
Sluggish interval Ln belonging to judgment model damper positions k;
Pattern damper positions k is adjusted to above-mentioned sluggish interval default mode damper positions Kn corresponding for Ln;
Blowing pattern is calculated according to the pattern damper positions k after adjusting.
As preferably, the described leaving air temp adjustment according to current detection dries the step of pattern particularly as follows: using the leaving air temp of current detection as leaving air temp, and performs step 1.
As preferably, the control method of described blowing pattern also include when auto Air Conditioner be manually set to maximum except vaporific state time, blowing mode adjustment is to the step blowing window pattern, it is ensured that the safety of driving.
As preferably, the control method of described blowing pattern also includes when auto Air Conditioner is manually set to maximum refrigerating state, and blowing mode adjustment, to the step blowing face pattern, further ensures that the comfort level of environment inside car.
As preferably, the control method of described blowing pattern judges whether to satisfy condition 1 simultaneously when also including each automobile starting, condition 2 and condition 3, if being then automatically adjusted to blow window pattern, otherwise performs step 1, wherein,
Condition 1: after vehicle launch in 3 seconds;
Condition 2: the outer temperature of car is higher more than M DEG C than evaporator temperature;
Condition 3: evaporator temperature is lower than preset threshold temperature B.
As preferably, described preset threshold 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 includes advantages below and beneficial effect compared to existing technology:
(1) present invention judges whether the saltus step of the leaving air temp detected is caused by the change of speed (engine speed), temperature sensor is avoided to cause the leaving air temp misalignment of its detection because of the impact of other factors, it is ensured that the blowing pattern of auto Air Conditioner makes environment inside car comfort level high.
(2) the pattern damper positions that each blowing pattern is corresponding is centrifugal pump, solve the pattern damper positions that in prior art, blowing pattern is corresponding continuous, thus causing the fluctuation of pattern damper positions frequently, and then cause the problem that blowing pattern frequently changes, guarantee while guaranteeing the comfort level of environment inside car that environment inside car is stable, environment inside car is avoided to fluctuate frequently, thus improving environment inside car comfort level.
(3) when auto Air Conditioner be manually set to maximum except vaporific state time, blowing mode adjustment to blowing window pattern, it is ensured that the safety of driving.
(4) when auto Air Conditioner is manually set to maximum refrigerating state, blowing mode adjustment, to blowing face pattern, further ensures that the comfort level of environment inside car.
(5) if every time automobile starting time meet the condition that hazes, then be automatically adjusted to blow window pattern, it is prevented that haze during automobile starting, affect traffic safety.
Accompanying drawing explanation
Fig. 1 is the flow chart of the control method of auto Air Conditioner blowing pattern in the present embodiment;
Fig. 2 is the particular flow sheet of the blowing pattern calculating auto Air Conditioner;
Fig. 3 is the relation coordinate diagram of blowing pattern and pattern damper positions;
Fig. 4 is the relation coordinate diagram arranging leaving air temp with pattern damper positions;
Fig. 5 is the relation coordinate diagram of leaving air temp and pattern damper positions;
Fig. 6 is the relation coordinate diagram 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 it is shown in figure 1, the control method of a kind of auto Air Conditioner blowing pattern, specifically include following steps:
S1 presets the sluggish interval Ln (L0, L1, L2, L3, L4) of each blowing pattern default mode damper positions Kn (K0, K1, K2, K3, K4) corresponding respectively and correspondence thereof. With reference to Fig. 3, Fig. 4, Fig. 5, Fig. 6, K0 is for blowing window pattern, and the sluggish interval of its correspondence is L0; K1 blows foot pattern for blowing window, and the sluggish interval of its correspondence is L1; K2 is for blowing foot pattern, and the sluggish interval of its correspondence is L2; K3 is for blowing top blast foot pattern, and the sluggish interval of its correspondence is L3; K4 is for blowing surface model, and the sluggish interval of its correspondence is L4.
S2 calculates the blowing pattern of auto Air Conditioner. As in figure 2 it is shown, specific as follows:
S21 is according to leaving air temp, vehicle interior temperature, the outer temperature of car, evaporator temperature and foot temperature computation pattern damper positions k;
Sluggish interval Ln belonging to S22 judgment model damper positions k, wherein n is any one number in 0,1,2,3,4;
Pattern damper positions k is adjusted to above-mentioned sluggish interval default mode damper positions Kn corresponding for Ln by S23;
S24 calculates blowing pattern, k=Kn according to the pattern damper positions k after adjusting.
S3 judges that whether engine speed Vspeed is more than default rotary speed threshold value Voffset, if then performing step S4, otherwise performs step S8.Described rotary speed threshold value Voffset is demarcated by real vehicle and obtains.
S4 calculates stroke enhancement value A, A=(Vspeed-Voffset) * Vcf according to the rotating speed Vspeed of electromotor, and wherein, Vcf is leaving air temp penalty coefficient, is demarcated by real vehicle and obtains.
S5 calculates the leaving air temp of current detection and the temperature difference △ T of the leaving air temp of last detection. Auto Air Conditioner detects air temperature by temperature sensor timing.
S6 judges that whether the absolute value of the difference of temperature difference △ T and stroke enhancement value A is less than default temperature difference threshold value △ t, if then performing step S7, otherwise performs step S8. Wherein temperature difference threshold value △ t=1 DEG C.
The leaving air temp of S7 current detection is effective, and the leaving air temp adjustment blowing pattern according to current detection. Particularly as follows: 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, and keep currently drying pattern.
When auto Air Conditioner be manually set to maximum except vaporific state time, blowing mode adjustment to blowing window pattern, improve driving safety.
When auto Air Conditioner is manually set to maximum refrigerating state, blowing mode adjustment, to blowing face pattern, further ensures that the comfort level of environment inside car.
The control method of described auto Air Conditioner blowing pattern judges whether to satisfy condition 1 when also including each automobile starting simultaneously, condition 2 and condition 3, if being then automatically adjusted to blow window pattern, otherwise perform the step of step 1, it is prevented that haze during automobile starting, thus improving traffic safety. Wherein,
Condition 1: after vehicle launch in 3 seconds.
Condition 2: the outer temperature of car is higher more than M DEG C than evaporator temperature, and wherein M arranges different preferred values with specific reference to different vehicles, it is generally preferable to be 3.
Condition 3: evaporator temperature is lower than preset threshold temperature B, and wherein preset threshold temperature B arranges different preferred values with specific reference to different vehicles, it is generally preferable to be 5 DEG C.
Above-described embodiment is the present invention preferably embodiment; but embodiments of the present invention are also not restricted to the described embodiments; the change made under other any spirit without departing from the present invention and principle, modification, replacement, combination, simplification; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (8)
1. the control method of an auto Air Conditioner blowing pattern, it is characterised in that comprise the following steps:
Step 1, calculate auto Air Conditioner blowing pattern; The control method of described auto Air Conditioner blowing pattern also includes the step presetting the sluggish interval Ln of each blowing pattern default mode damper positions Kn corresponding respectively and correspondence thereof;
Described step 1 particularly as follows:
According to leaving air temp, vehicle interior temperature, the outer temperature of car, evaporator temperature and foot temperature computation pattern damper positions k;
Sluggish interval Ln belonging to judgment model damper positions k;
Pattern damper positions k is adjusted to above-mentioned sluggish interval default mode damper positions Kn corresponding for Ln;
Blowing pattern is calculated according to the pattern damper positions k after adjusting;
Step 2, judging that whether engine speed Vspeed is more than default rotary speed threshold value Voffset, if then performing step 3, otherwise performing step 7;
Step 3, calculate stroke enhancement value A according to the rotating speed Vspeed of electromotor;
The temperature difference △ T of the leaving air temp of step 4, the leaving air temp calculating current detection and last time detection;
Step 5, it is judged that the absolute value of the difference of temperature difference △ T and stroke enhancement value A, whether less than default temperature difference threshold value △ t, if then performing step 6, otherwise performs step 7;
Step 6, current detection leaving air temp effective, and dry pattern according to the leaving air temp adjustment of current detection;
Step 7, current detection leaving air temp invalid, keep currently drying pattern.
2. the control method of auto Air Conditioner according to claim 1 blowing pattern, it is characterised in that described step 3 is particularly as follows: stroke enhancement value A=(Vspeed-Voffset) * Vcf, and wherein, Vcf is the penalty coefficient of blowing pattern.
3. the control method of auto Air Conditioner according to claim 2 blowing pattern, it is characterised in that: described temperature difference threshold value △ t=1 DEG C.
4. the control method of auto Air Conditioner according to claim 1 blowing pattern, it is characterized in that, the described leaving air temp adjustment according to current detection dries the step of pattern particularly as follows: using the leaving air temp of current detection as leaving air temp, and performs step 1.
5. the control method of the auto Air Conditioner blowing pattern according to any one of Claims 1-4, it is characterized in that: the control method of described blowing pattern also include when auto Air Conditioner be manually set to maximum except vaporific state time, blowing mode adjustment is to the step blowing window pattern.
6. the control method of the auto Air Conditioner blowing pattern according to any one of Claims 1-4, it is characterized in that: the control method of described blowing pattern also includes when auto Air Conditioner is manually set to maximum refrigerating state, blowing mode adjustment is to the step blowing face pattern.
7. the control method of the auto Air Conditioner blowing pattern according to any one of Claims 1-4, it is characterized in that, the control method of described blowing pattern judges whether to satisfy condition 1 simultaneously when also including each automobile starting, condition 2 and condition 3, if being then automatically adjusted to blow window pattern, otherwise perform step 1, wherein
Condition 1: after vehicle launch in 3 seconds;
Condition 2: the outer temperature of car is higher more than M DEG C than evaporator temperature;
Condition 3: evaporator temperature is lower than preset threshold temperature B.
8. the control method of auto Air Conditioner according to claim 7 blowing pattern, it is characterised 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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| KR101816421B1 (en) * | 2016-07-01 | 2018-01-08 | 현대자동차주식회사 | Method for controlling of air conditioner in vehicles |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08156567A (en) * | 1994-12-02 | 1996-06-18 | Calsonic Corp | Air conditioner for automobile |
| JPH0999732A (en) * | 1995-10-05 | 1997-04-15 | Denso Corp | Vehicle control device |
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| CN102313336A (en) * | 2011-09-30 | 2012-01-11 | 芜湖博耐尔汽车电气系统有限公司 | Automatic constant-temperature control method for automotive air conditioning controller |
| CN103388875A (en) * | 2012-05-09 | 2013-11-13 | 上海航天汽车机电股份有限公司 | Automatic air conditioner control method of vehicle dual-temperature area |
| CN103042895A (en) * | 2012-11-30 | 2013-04-17 | 惠州市德赛西威汽车电子有限公司 | Method for controlling outlet air temperature of automobile air conditioner |
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