CN108332341B

CN108332341B - Air conditioning for automobiles control data based on HVAC system generate and autocontrol method

Info

Publication number: CN108332341B
Application number: CN201710179330.5A
Authority: CN
Inventors: 龙晓明
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-03-23
Filing date: 2017-03-23
Publication date: 2019-10-29
Anticipated expiration: 2037-03-23
Also published as: CN108332341A

Abstract

The invention discloses based on HVAC system airconditioning control data generate and autocontrol method, first obtain air conditioning HVAC assembly temperature linearity test data, the temperature damper useful to comfort automatic control algorithm is only extracted from test data and controls data, carrys out the control data of obtaining mode air door on human body comfort influence further according to air conditioning exhausting temperature；The pleasant climate data of temperature and mode air door are input to controller, temperature and mode throttle opening on HVAC assembly are automatically controlled by controller, and demarcate and correct according to real vehicle road, to realize vehicle comfort Fast Calibration.Control algolithm provided by the invention is to be automatically controlled data based on temperature linear data in HVAC inherent characteristic, effectively realizes interior actual temperature by setting temperature change, is finally reached setting temperature range；Depot and air-conditioning part producer can be helped to fast implement the calibration of comfort road, meet human body comfort requirement, built a comfortable environment space to driver and passenger.

Description

Air conditioning for automobiles control data based on HVAC system generate and autocontrol method

Technical field

The present invention relates to air conditioning for automobiles automatic control technology field, especially a kind of air conditioning for automobiles HVAC assembly temperature and mould Formula air door comfort autocontrol method.

Background technique

The heat exchange of domestic automobile air-conditioning (HVAC) system manufacturers are often fought separately with air-conditioner controller producer, heat exchange series System producer more pays close attention to thermodynamics, hydrodynamics, and thermo parameters method, noise, temperature rise, leaving air temp be linear and the non-controlling such as the temperature difference Class subject, and air-conditioner controller producer is more concerned with how to realize output action and function with micro computer, does not have to vehicle comfort There is a system to be fully understood by.Different manufacturers difference vehicle system thermic load is different, not completely the same HVAC system, such as: going out The variation of tuyere position sum number amount, throttle opening variation, air blower changes in flow rate etc., glass for vehicle window and area change, sunshade area Variation, the variation of vehicle body gas vent, vehicle body heat preservation and sealing variation etc., factors all will lead to the change of air-conditioning system comfort Change.

If comprehensive unite of heat-exchange system and control system is not carried out the design of scientific system, it may be difficult to have Effect keeps the comfort of air-conditioning fully up to expectations using HAVC related data.It is full in air-conditioning maximum refrigeration & heating capacity and the air port temperature difference Under the premise of foot requires, the temperature linearity of HVAC temperature damper and the location point selection of outlet air air door seem extremely important, it The comfort design of air-conditioning will be directly affected, brings obstacle to comfort calibration, reach setting target temperature in certain operating condition difficulties ± 2 DEG C of requirement.

Therefore, in order to carry out comfort calibration, heat-exchange system producer all can be to HVAC temperature damper in various outlet air moulds Temperature linearity test is carried out under formula, as far as possible by throttle opening (practical corresponding air door executer motor feedback voltage) and air outlet Temperature changes linearly, and still, since vehicle body space and evaporator/heater installation site are limited, HVAC is highly integrated to make wind Road becomes bent narrow, while evaporator temperature is unevenly distributed, air duct, air door designs the influence such as unreasonable, is substantially only in non-thread Property variation, or even part also has a temperature abrupt change phenomenon.

The automotive electronics producer of air-conditioning heat-exchange system is not known about very much, faces such HVAC system, and cannot be abundant Understand and utilize the inherent characteristic of HVAC, it is intended to the pleasant climate of vehicle is realized with a model or linear function, even if More manpower and material resources are spent again, satisfied comfort calibration will be all difficult to realize, this is also to allow vehicle in current air conditioning for automobiles industry The problem of factory and components producer are sorely distressed.Often target is tall and big, is back with disappointment.

Traditional air conditioner controller producer does not get a real idea of HVAC temperature linearity data, and temperature damper controlling curve is not pressed The test data of HVAC inherent characteristic is fitted, and curvature or slope differ greatly with real vehicle air-conditioning, makes staking-out work thing times function Half；Regardless of which kind of vehicle all uses a set of relatively fixed control data, simple tune has been done just for different throttle openings It is whole, it is difficult to realize the comfort requirement of vehicle；Some controls temperature damper using segmentation linear function, only when comfort calibration Variation coefficient can be modified merely, may meet the operating condition after modifying some parameter, but has been demarcated before influencing whether simultaneously Other operating conditions, so turn from side to side, finally be difficult to realize target temperature ± 2 DEG C require；It can not be mentioned according to HVAC temperature linearity data The control data of dynamic air-out mode are derived from, the comfort impression of human body head and face is directly affected, while will affect interior conjunction The thermo parameters method of reason significantly impacts the comfort calibration of vehicle.

The airconditioning control data based on HVAC system that therefore, it is necessary to a kind of generate and autocontrol method.

Summary of the invention

The airconditioning control data based on HVAC system that the purpose of the present invention is to propose to a kind of generate and autocontrol method.

The purpose of the present invention is achieved through the following technical solutions:

Air conditioning for automobiles provided by the invention based on HVAC system controls data creation method, comprising the following steps:

It obtains HVAC temperature linearity and tests the temperature linearity test data obtained；

From temperature linearity test data extract be suitable for human body comfort demand for air-conditioning blow face automatically, the face of blowing is blown Foot and the temperature damper blown under foot Three models control data；

Temperature damper motor is obtained to blow face automatically, foot is blown in the face of blowing and blowing the temperature damper control data under foot Three models The feedback voltage V of corresponding temperature damper motor_tf；

From temperature damper control data in extract be suitable for blow face, foot is blown in the face of blowing and blow foot Three models mode conversion face Boundary's temperature value；

Determine that mode damper motor is blowing face automatically, foot is blown in the face of blowing and blowing the mode conversion critical temperature under foot Three models The corresponding mode air door feedback voltage level V of value_mf；

By temperature damper feedback voltage V_tfWith mode air door feedback voltage level V_mfAs airconditioning control data；

The temperature damper air outlet mean temperature is 22 DEG C~25 DEG C ranges, selects a determining temperature within this range Angle value and corresponding temperature damper feedback voltage V_tf, with the integrated temperature T_C=0 value is corresponding, is then incremented by/deduction by 0.5 DEG C With T_C、T_SValue, obtains temperature damper motor feedback voltage V with this_tfWith T_CControlling curve；

Further, the air-conditioning is blowing face automatically, foot is blown in the face of blowing and is blowing the temperature damper control data under foot Three models Specifically obtain according to the following steps:

In the case where blowing surface model, according to human body summer comfort demand principle, from temperature of the HVAC assembly when blowing surface model It is extracted in linear test data and blows face air outlet average temperature value less than or equal to preset threshold temperature value A₀All data, together When extract temperature damper motor feedback voltage V corresponding to each air outlet average temperature value_tf；

In the case where foot mode is blown in the face of blowing, according to all face air outlet average temperature values that blow of vehicle less than or equal to preset threshold temperature Value A₁And all foot air outlet average temperature values that blow of vehicle are more than or equal to preset threshold temperature value B₀Between data, while root According to damper motor during operation needed for hysteresis voltage, to extract control number needed for temperature damper when foot mode is blown in the face of blowing According to extracting damper motor feedback voltage V corresponding to each air outlet average temperature value_tf；

In the case where blowing foot mode, according to human body winter comfort demand principle, from temperature of the HVAC assembly when blowing foot mode It is extracted in linear test data and blows foot air outlet average temperature value more than or equal to preset threshold temperature value B₁All data, together When according to damper motor during operation needed for hysteresis voltage, control number needed for temperature damper when blowing foot mode to extract According to extracting damper motor feedback voltage V corresponding to each air outlet average temperature value_tf。

Further, the temperature damper feedback voltage V_tfThrough the following steps that obtain:

The voltage for obtaining temperature damper motor controls data；

Temperature damper control data are divided into several temperature-controlled zones, the very fast region of temperature change carry out temperature and Voltage Subdividing Processing, in case there is abrupt change phenomenon in air outlet temperature；

The voltage control data of different temperatures control area are fitted, corresponding temperature damper feedback voltage is established V_tf。

Further, the work of the temperature damper motor is through the following steps that realize:

According to the integrated temperature T of real-time change_CValue, temperature damper motor damper positions feedback voltage to be achieved V_tf；

Whether real-time judge temperature damper reaches the corresponding feedback voltage V in designated position_tfIf reached, temperature damper Motor is out of service；If not reaching, same to repetitive cycling.

It when temperature damper runs to extreme boundary position, is then operated according to predetermined time delay, then forces to stop.

Further, the work of the mode damper motor is realized by mutation formula control algolithm, the mutation formula Control algolithm specifically follows the steps below:

Obtain critical average temperature value of the temperature damper under various air-out modes, temperature damper motor feedback voltage and right The integrated temperature value T answered_C；

When outlet air operating mode is that foot mode is blown in the face of blowing, judge whether integrated temperature value is less than or equal to critical temperature value A₁, if it is, outlet air working mode change is to blow foot mode, mode damper motor, which is run to, blows the corresponding mode wind of foot mode Door motor feedback voltage V_mfPosition；If not and integrated temperature value is greater than critical temperature value B₀, then mode damper motor is run to Blow the corresponding mode damper motor feedback voltage V of surface model_mfPosition；If integrated temperature value is less than or equal to critical temperature value B0, It is then maintained at the face of blowing and blows foot mode, mode damper motor does not rotate；

When outlet air operating mode is to blow surface model, judge whether integrated temperature value is less than critical temperature value A_O, if so, Then mode damper motor runs to the face of blowing and blows the corresponding mode damper motor feedback voltage V of foot mode_mfPosition；If it is not, then protecting It holds and is blowing surface model, mode damper motor does not rotate；

When outlet air operating mode is to blow foot mode, judge whether integrated temperature value is more than or equal to critical temperature value B₁, such as Fruit is, then mode damper motor runs to the face of blowing and blows the corresponding mode damper motor feedback voltage V of foot mode_mfPosition；If not, It is then maintained at and blows foot mode, mode damper motor does not rotate.

Further, the work of the mode damper motor is realized by gradual change type control algolithm, the gradual change type Control algolithm specifically follows the steps below:

When operating mode is that foot mode is blown in the face of blowing, judge whether integrated temperature value is less than or equal to critical temperature value A₁, such as Fruit is then to be transformed into blow the damper motor feedback voltage of foot mode and controlled；If not and integrated temperature value is greater than stagnation temperature Angle value B₀, then it is transformed into and blows the damper motor feedback voltage of surface model and controlled；If integrated temperature value is less than or equal to stagnation temperature Angle value B₀When, then further judge whether integrated temperature changes, if it is increase, then show the face of blowing blow foot mode and by It is controlled according to mode damper motor feedback voltage with default increment value；If it is reduction, then show that foot mode is blown simultaneously in the face of blowing It is controlled according to mode damper motor feedback voltage with default increment value；If it is remaining unchanged, then keep mode air door electric Machine feedback voltage is constant；

When operating mode is to blow surface model, judge whether integrated temperature value is less than critical temperature value A₀, if it is, aobvious The face of blowing is shown to blow foot mode and controlled according to mode damper motor feedback voltage with default increment value；If it is not, then keeping Mode damper motor feedback voltage is controlled；

When operating mode is to blow foot mode, judge whether integrated temperature value is more than or equal to critical temperature value B₁, if so, Then show that the face of blowing is blown foot mode and controlled according to mode damper motor feedback voltage with default increment value；If it is not, then Holding mode damper motor feedback voltage is controlled.

Further, the temperature damper control data blown under surface model are to blow surface model what acquisition HVAC producer provided In temperature linearity data basis, and according to human body summer comfort demand, obtain in the following way:

It 0) is principle according to " individually blowing 25 DEG C of face air outlet temperature < ", face air outlet mean temperature critical point is blown in determination A₀；

1) when blowing face air outlet mean temperature≤A₀When all air outlet mean temperatures and corresponding all temperature dampers Feedback voltage V_tf(i.e. A₀Corresponding V_tfFor 2.6V), as the control reference data for blowing surface model automatically；

2) work as V_tfWhen changing but blowing face air outlet mean temperature and hardly change, it is considered as temperature damper and has been rotated to most cold position It sets, selects extreme boundary numerical value (i.e. corresponding V of this feedback voltage as most cold end_tfAir outlet mean temperature base when >=4.0V This does not change)；

3) when blowing face air outlet mean temperature > A₀When (corresponding V_tf< 2.6V), individually blow the temperature of face air outlet More than 25 DEG C, it may cause that human body is uncomfortable when blowing face, therefore the automatic air conditionning in the case where blowing face air-out mode is not paid close attention to；

If 4) HVAC producer passs add drop by 0.2V and tested, is segmented according to 0.1 or 0.05V and carries out temperature value estimation, Control must be also finely divided to the faster region of temperature change.

Further, it is when foot mode is blown in the acquisition face of blowing HVAC that the control of the temperature damper under foot mode data are blown in the face of blowing Temperature linearity data on the basis of, and return difference is automatically controlled according to spring/autumn comfort and air-out mode, in the following way To obtain:

It 0) is principle according to " individually blowing 25 DEG C of face air outlet temperature < ", face air outlet mean temperature critical point is blown in determination A₁；

1) according to " all to blow 25 DEG C of foot air outlet average temperature value > ", while considering " to prevent damper motor from operating Required hysteresis voltage is shaken in journey " it is principle, foot air outlet mean temperature critical point B is blown in determination₀；

2) this case is with B₀And A₀Air door feedback voltage V corresponding to mean temperature_tfB0-V_tfA0Absolute value >=0.1V control Return difference processed extracts control data；A₁Corresponding temperature air door feedback voltage is 2.2V, and B0 corresponding temperature air door feedback voltage is 2.8V, as 2.2V≤V_tfWhen≤2.8V, the automatic control reference data of temperature damper under foot mode is blown as the face of blowing；

Further, the temperature damper control data blown under foot mode are the temperature lines when obtaining HVAC and blowing foot mode Property data on the basis of, and return difference is automatically controlled according to winter comfort and air-out mode, obtained in the following way:

0) according to " all to blow 25 DEG C of foot air outlet average temperature value > ", while considering " to prevent damper motor from operating Required hysteresis voltage is shaken in journey " it is principle, foot air outlet mean temperature critical point B is blown in determination₁；

1) with B₁And A₁Temperature damper feedback voltage V corresponding to mean temperature_tfB1-V_tfA1Absolute value >=0.1V control Return difference processed extracts control data；B₁Corresponding temperature air door feedback voltage is 2.4V, works as V_tfWhen≤2.4V, as blowing under foot mode Automatically control reference data；

2) work as V_tfWhen changing but blowing foot air outlet mean temperature and hardly change, it is considered as temperature damper and has been rotated to most thermal potential It sets, selects extreme boundary numerical value (i.e. corresponding V of this feedback voltage as most hot end_tfAir outlet mean temperature base when≤1.1V This does not change)；

3) when blowing foot air outlet mean temperature < B₁When (corresponding V_tfWhen > 2.4V, since the HVAC blows foot air outlet Between the temperature difference it is larger, part air port leaving air temp may be unsatisfactory for human body comfort requirement, therefore the temperature in the case where blowing foot mode automatically The automatic control for spending air door is not paid close attention to.

The present invention also provides a kind of Automatic control method of air conditioner of automobile based on HVAC system, comprising the following steps:

S1: it obtains HVAC temperature linearity and tests the temperature linearity test data obtained；

From temperature linearity test data extract be suitable for human body comfort demand for air-conditioning the face of blowing, the face of blowing blow foot and Blow the automatic control data of the temperature damper under foot Three models；

Obtain temperature damper motor the face of blowing, the face of blowing blow foot and blow under foot Three models temperature damper control data institute it is right The feedback voltage V for the temperature damper motor answered_tf；

S2: it is extracted from temperature damper control data suitable for blowing face, foot is blown in the face of blowing and blows the mode turn of foot Three models Change critical temperature value；

Determine that mode damper motor blows foot in the face of blowing, the face of blowing and blows the mode conversion critical temperature value institute under foot Three models Corresponding mode air door feedback voltage level V_mf；

S3: by temperature damper feedback voltage V_tfWith mode air door feedback voltage level V_mfSimultaneously as automatic air conditionning data It is input to automotive air-conditioning controller；

S4: obtaining vehicle interior temperature and calculates integrated temperature T according to following formula_c:

T_C=aT_i–T_S+E_O+E_S+E_SP+e

Wherein, T_iFor interior NTC sensor temperature；A is coefficient；T_SFor the target temperature of setting；E_OFor vehicle external environment temperature Compensation rate；E_SFor intensity of sunshine compensation rate；E_SPFor speed compensation rate；E is T_COffset.

S5: automotive air-conditioning controller is according to the integrated temperature T of real-time change_c, it is right to come temperature airdoor control data institute The temperature damper feedback voltage V answered_tf, according to temperature damper feedback voltage V_tfDriving temperature damper motor works；

S6: automotive air-conditioning controller is according to the integrated temperature T of real-time change_cTo judge integrated temperature value T_cWhether mould is reached Formula conversion critical temperature value, if reached, by automotive air-conditioning controller according to mode air door feedback voltage V_mfDrive mode Damper motor works.

Further, the air-conditioning the face of blowing, the face of blowing blow foot and blow under foot Three models temperature damper control data it is specific It obtains below:

In the case where blowing surface model, according to human body summer comfort demand principle, from temperature of the HVAC assembly when blowing surface model It is extracted in linear test data and blows face air outlet average temperature value less than or equal to preset threshold temperature value A₀All data, together When extract damper motor feedback voltage V corresponding to each air outlet temperature value_tf；

In the case where foot mode is blown in the face of blowing, according to all face air outlet average temperature values that blow of vehicle less than or equal to preset threshold temperature Value A₁And all foot air outlet average temperature values that blow of vehicle are more than or equal to preset threshold temperature value B₀Between data, while root According to damper motor during operation needed for hysteresis voltage extract control number needed for temperature damper when foot mode is blown in the face of blowing According to extracting damper motor feedback voltage V corresponding to each air outlet temperature value_tf；

In the case where blowing foot mode, according to human body winter comfort demand principle, from temperature of the HVAC assembly when blowing foot mode It is extracted in linear test data and blows foot air outlet average temperature value more than or equal to preset threshold temperature value B₁All data, together When according to damper motor during operation needed for hysteresis voltage blow foot mode to extract when temperature damper needed for control number According to extracting damper motor feedback voltage V corresponding to each air outlet temperature value_tf。

By adopting the above-described technical solution, the present invention has the advantage that:

The present invention is the control algolithm for going to consider from the big system perspective of air-conditioning, is not the operating for simply implementing air conditioner damper Control, it is effectively to realize setting temperature and vehicle based on the control algolithm that temperature linear data obtains in HVAC inherent characteristic Interior actual temperature differs ± 2 DEG C of target call.Vehicle factor and parts supplier can be helped to fast implement the comfort road of air-conditioning Road sign is fixed, has saved manpower and financial resources cost；Make vehicle under environmental working condition complicated and changeable, the comfort for being able to satisfy human body is wanted It asks, has built a comfortable environment space to driver and passenger；This algorithm can help automatic air conditionning producer quickly to be produced Product exploitation and road calibration, realize product volume production, generate biggish economic value for society；Also HVAC heat exchange producer can be helped It was found that essential problem existing for HVAC, helps HVAC producer to come together to solve the problems, such as, to reach the comfort demand of vehicle.

Autocontrol method provided by the invention is the temperature line provided according to air conditioning for automobiles HVAC heat-exchange system producer Property test data (depot require must do test), extract comfortable to air-conditioning under " blowing face, foot is blown in the face of blowing, blows foot " Three models Property automatically control the modes of useful temperature damper control data；In the case where blowing surface model, mainly according to human body summer comfort need " cold blowing face " and " human body has scorching sense when single air outlet temperature is more than a certain critical-temperature " is principle in asking, total from HVAC At in the temperature linearity test data when blowing surface model, extraction blows face air outlet average temperature value less than critical temperature value A₀'s All data, while extracting the control data of temperature damper motor feedback voltage corresponding to each air outlet temperature value；And it is right Draught temperature changes faster region and carries out feedback voltage micro-stepping control；In the case where foot mode is blown in the face of blowing, face is blown according to vehicle is all Air outlet average temperature value is less than critical temperature value A₁And all foot air outlet average temperature values that blow of vehicle are greater than critical-temperature Value B₀Between data, while being considered as preventing damper motor from shaking required hysteresis voltage (i.e. B during operation₀And A₀Temperature The corresponding air door feedback voltage V of degree_tfB0-V_tfA0Absolute value >=0.1V) extract when foot mode is blown in the face of blowing needed for temperature damper Control data, while extract temperature damper motor feedback voltage corresponding to each air outlet temperature value control data；And Faster region is changed to draught temperature and carries out feedback voltage micro-stepping control；In the case where blowing foot mode, mainly relaxed according to human body winter " hot blow foot " is principle in adaptive demand, and from HVAC assembly in the temperature linearity test data when blowing foot mode, foot is blown in extraction Air outlet average temperature value is greater than critical temperature value B₁All data, while being considered as preventing damper motor during operation Hysteresis voltage (i.e. B needed for shake₁And A₁Air door feedback voltage V corresponding to temperature_tfB1-V_tfA1Absolute value >=0.1V) come Control data needed for temperature damper when foot mode is blown in extraction, while extracting temperature wind corresponding to each air outlet temperature value Door motor feedback voltage controls data.And faster region is changed to draught temperature and carries out feedback voltage micro-stepping control.

The present invention automatically controls data according to temperature damper, " blows face, foot is blown in the face of blowing, is blown to extract three kinds of air-out modes The mode of foot " state auto-switching data；It is automatically controlled in mutation formula algorithm according to temperature damper according to comfort demand Algorithm, obtained air-out mode damper motor 4 automatically switch the corresponding T of point_CThe method of value；According to comfort demand, In In gradual change type algorithm, according to temperature damper automatic control algorithm, obtained air-out mode damper motor " is blowing face ← → face of blowing to blow Foot ← → blows face " mutually in conversion process, with T_CThe method that value variation gradually drives air-out mode air door.

The present invention is the control algolithm for going to consider from the big system perspective of air-conditioning, is not the operating for simply implementing air conditioner damper Control, it is effectively to realize set temperature and vehicle based on the control algolithm that temperature linear data obtains in HVAC inherent characteristic Interior actual temperature differs ± 2 DEG C of target call.

1, vehicle factor and parts supplier can be helped to fast implement the comfort road calibration of air-conditioning, saved manpower and wealth Power cost；

2, make vehicle under environmental working condition complicated and changeable, be able to satisfy the comfort requirement of human body, built to driver and passenger One comfortable environment space；

3, this algorithm can help automatic controller for air conditioner producer quickly to carry out product development, realize product function, and can be fast Speed carries out complicated comfort road calibration, realizes product volume production, generates biggish economic value for society.

Further advantage, target and feature of the invention will be illustrated in the following description to a certain extent, and And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke To be instructed from the practice of the present invention.The objects and other advantages of the present invention can be realized by following specification and It obtains.

Detailed description of the invention

Detailed description of the invention of the invention is as follows.

Fig. 1 is to blow surface model temperature damper in the relation curve of different location feedback voltage and 4 air outlet temperatures.

Fig. 2 is that foot model temperature air door is blown in the relation curve of different location feedback voltage and 8 air outlet temperatures in the face of blowing.

Fig. 3 is to blow foot model temperature air door in the relation curve of different location feedback voltage and 4 air outlet temperatures.

Fig. 4 is the relation curve of temperature damper feedback voltage and air port mean temperature after fitting.

Fig. 5 is the relational graph of vehicle external environment temperature and offset Eo.

Fig. 6 is the relational graph of intensity of sunshine and offset Es.

Fig. 7 is the relational graph of speed and offset Esp.

Fig. 8 is that mutation formula algorithm pattern air door automatically switches figure.

Fig. 9 is mutation formula algorithm pattern air door automatic control flow chart figure.

Figure 10 is the mode air door auto-changeover control algorithm of gradual change type algorithm.

Figure 11 is gradual change type algorithm pattern air door automatic control flow chart figure.

Figure 12 is the airconditioning control data creation method flow chart based on HVAC system.

Specific embodiment

Present invention will be further explained below with reference to the attached drawings and examples.

The air conditioning for automobiles comfort that the present embodiment refers to is a fuzzy concept, will receive physiology, psychology, physics, ring The influence of the factors such as border, economy, natural conditions and social customs of a place habit, but on the whole, think that summer comfort recommends temperature by the way that Multitest is comprehensive Degree is 21~28 DEG C, and winter is 18~25 DEG C.Automatic air condition can all have a target set temperature Ts, this is reached desired by occupant The temperature arrived.Final purpose is: range and vehicle multi-state complex condition in environment temperature -40~40 DEG C, solid in conjunction with HVAC There is the control algolithm that design is scientific and reasonable for characteristic, reaches the requirement of Ts ± 2 DEG C under the conditions of multi-state as far as possible, allows people as far as possible Body head temperature is lower than foot's temperature, and there are certain temperature difference (such as 2~6 DEG C), meets vertical distribution requirement of the human body to temperature.

It is the linear test data according to HVAC assembly, knot that Extracting temperature air door provided in this embodiment, which automatically controls data, The demand of pleasant climate is closed, the point-to-point data tabled look-up is extracted, single linear or segmented linear is not used to control temperature Air door can more cope with various nonlinear change situations, and comfort calibration is made to be easier to realize.

Air door driving generally uses reaction type DC servo motor and stepper motor two types, and reaction type servo motor is Damper positions are determined by feedback voltage, and stepper motor is to determine damper positions by step angle.Reaction type servo For motor single step minimum feedback voltage up to 0.05V, each voltage corresponds to one angle of air door, is doing the test of HVAC temperature linearity When, often directly adopt relationship (really angle and temperature) Lai Jinhang linear test of voltage and temperature；And stepper motor list Minimum step angle is walked up to 0.05 °, air door rotates 1 ° of N number of electric pulse number of correspondence, damper positions are determined by step-by-step counting, It generallys use dampers angular and temperature relation carries out linear test.Both it is able to satisfy the control requirement of air conditioning comfortableness air door. Stepper motor due to higher cost, discussed with more common DC servo motor by the present embodiment.

The position feedback voltage range of DC feedback formula servo motor is generally 0~5V, and automatic air condition microprocessor AD acquisition precision at least requires 10bit, can theoretically be subdivided into 1024 data, calculates by 1000: 5/1000=0.005V, That is single step minimum voltage is up to 0.005V.In view of turning by the precision of the servo motor of position feedback, motor of fixed carbon resister value Dynamic and brake stabilization requirement and the influence of electromagnetic disturbance signal, actually can only effectively be sub-divided into minimum 0.05V.

The present embodiment is tested by integral type HVAC temperature linearity, can be obtained air-conditioning heat-exchange system and is distributed in temperature linearity The inherent characteristic of aspect is usually carried out by following operating condition:

1) depot provides carload instrument platen and air hose；

2) blower end voltage 6V；

3) 5 DEG C of inlet air temperature；

4) 85 DEG C of heater inlet temperature.

Since HVAC dampers angular (corresponding feedback voltage) can change because of different vehicles, so that the position of servo motor Setting feedback voltage range can also change.It is researched and analysed below with some successful case, to obtain control algolithm data.

As shown in figure 12, Figure 12 is air conditioning for automobiles HVAC assembly temperature and mode air door comfort automatic control algorithm process Figure；Specific step is as follows:

Obtain air conditioning HVAC heat-exchange system the face of blowing, the face of blowing blow foot, blow foot, blow foot defrosting, defrosting etc. a variety of outlet air moulds Temperature linearity test data under formula；

Temperature damper control useful to automatic air conditionning under different working modes is obtained according to temperature linearity test data Data processed；

The state switching control data of mode air door when data determine air-conditioning automatic air-out mode are controlled according to temperature damper；

Temperature damper is controlled into data and state switching control data are input to automotive air-conditioning controller；

The corresponding temperature of the human body summer comfort demand is 21~28 DEG C；

The corresponding temperature of the human body winter comfort demand is 18~25 DEG C.

The temperature damper air outlet mean temperature is 22 DEG C~25 DEG C ranges.

Data, which are automatically controlled, according to temperature damper comfort by automotive air-conditioning controller controls air conditioning for automobiles HVAC temperature Air door and mode throttle opening, and appropriate amendment is made according to real vehicle road calibration situation in spring and autumn, summer, winter.

It is to blow face according to human body from the test of HVAC assembly temperature linearity that the temperature damper comfort, which automatically controls data, Or the comfort temperature requirement of foot is blown, it extracts respectively and blows foot in the face of blowing, the face of blowing, blows in three kinds of air-out modes of foot for automatically controlling That useful a part of Data Integration is to together, as automatic control number of the air-conditioner temperature air door in entirely setting temperature range According to；

Control data of the temperature damper when blowing surface model, mainly according to " cold blowing in human body summer comfort demand Face " and " human body has scorching sense when single air outlet temperature is more than a certain critical-temperature " are principle, from HVAC assembly in the face of blowing In temperature linearity test data when mode, extraction blows face air outlet average temperature value less than or equal to critical temperature value A₀It is all Data, while extracting the control data of damper motor feedback voltage corresponding to each air outlet temperature value；

Control data of the temperature damper when foot mode is blown in the face of blowing blow face air outlet mean temperature according to vehicle is all Value is less than or equal to critical temperature value A₁And all foot air outlet average temperature values that blow of vehicle are more than or equal to critical temperature value B₀It Between data, while being considered as preventing damper motor from shaking required hysteresis voltage (i.e. B during operation₀And A₀Temperature institute is right The air door feedback voltage V answered_tfB0-V_tfA0Absolute value >=0.1V) extract control needed for temperature damper when foot mode is blown in the face of blowing Data, while extracting the control data of damper motor feedback voltage corresponding to each air outlet temperature value；

Control data of the temperature damper when blowing foot mode, mainly according to " hot blow in human body winter comfort demand Foot " is principle, and from HVAC assembly in the temperature linearity test data when blowing foot mode, foot air outlet average temperature value is blown in extraction More than or equal to critical temperature value B₁All data, while returning needed for being considered as preventing damper motor from shaking during operation Potential difference (i.e. B₁And A₁Air door feedback voltage V corresponding to temperature_tfB1-V_tfA1Absolute value >=0.1V) to extract blow foot mode When temperature damper needed for control data, while extracting damper motor feedback voltage control corresponding to each air outlet temperature value Data processed.

The present embodiment blows surface model temperature linearity data according to what HVAC producer provided, it is collated after as shown by the data in table 1 (homologous thread is shown in that Fig. 1, Fig. 1 are to blow surface model temperature damper in the relationship of different location feedback voltage and 4 air outlet temperatures song Line, in figure, curve upper right side in figure successively indicates instrument desk 4 from top to bottom and blows right air outlet in the air outlet of face, and a middle left side goes out Air port, right air outlet, left air outlet), by depot's requirement: the temperature difference of air outlet to each other must not exceed 5 DEG C.Mainly according to human body " cold blowing face " and " human body has scorching sense when single air outlet temperature is more than a certain critical-temperature " is in summer comfort demand Principle.The present embodiment blows 25 DEG C of face temperature < with single air outlet, and with 23.5 DEG C of (A of air outlet mean temperature₀) it is critical point, As shown in table 1.

Table 1

1) as the position feedback voltage V of temperature damper_tfAfter >=4.0V, air outlet temperature is basically unchanged, and illustrates air door Most cold position is turned to, extreme boundary numerical value of this feedback voltage as most cold end is selected；

2) when the position feedback voltage of temperature damper is 2.6V≤V_tf(2.6V is critically weighted A when≤4.0₀It is corresponding Feedback voltage), corresponding draught temperature meets summer human body comfort demand, therefore as temperature wind when blowing surface model automatically The control reference data of door；

3) work as V_tfWhen < 2.6V, human body comfort requirement may be unsatisfactory for by corresponding to draught temperature, therefore blow face automatically The automatic control of temperature damper is not paid close attention to when mode；

If 4), original experiment data that HVAC producer provides is to pass add drop according to 0.2V to be tested, can according to 0.1 or Then 0.05V Subdividing Processing is respectively calculated temperature value.To the faster region of temperature change (i.e. within the scope of unit voltage Corresponding temperature change is excessive), it must also be finely divided control；

If feedback voltage from 3.3V changes to 3.2V in table 1, this region voltage changes 0.1V, corresponding temperature change 1.3 DEG C, it is very fast relative to the variation of other regional temperatures, can segment one median 3.25V of newly-increased insertion, temperature value be 3.3V with The average value of the sum of 3.2V corresponding temperature value, i.e. (16.1+17.4)/2 ≈ 16.8；

6) if vehicle or HVAC system variation, control data can also change, must again determines according to actual conditions.

(homologous thread is shown in Fig. 2, Fig. 2 to temperature linearity data when table 2 provided in this embodiment blows foot mode for the face of blowing HVAC Foot model temperature air door is blown in the relation curve of different location feedback voltage and 8 air outlet temperatures for the face of blowing；In figure, curve exists Successively foot air outlet lower-left air outlet, upper right air outlet, bottom right outlet air are blown in expression instrument desk 4 from top to bottom for upper right side in figure Mouthful, upper left air outlet；Following set curve is to blow face air outlet temperature schematic diagram, is followed successively by middle left air outlet, left air outlet, in Right air outlet, right air outlet), in terms of data: blowing the part temperature difference between 4 air ports of foot is more than 5 DEG C, while foot air port temperature is blown in part Degree has been higher by much than blowing face draught temperature, and the vertical temperature-difference comfort that such HVAC assembly characteristic may will affect human body needs It asks.According to spring/autumn comfort demand, according to " it is not scorching blowing face, it is not ice-cold to blow foot " principle:

It 1) is principle according to " individually blowing 25 DEG C of face air outlet temperature < ", face air outlet mean temperature critical point is blown in determination A₁；

2) according to " all to blow 25 DEG C of foot air outlet average temperature value > ", while considering " to prevent damper motor from operating Required hysteresis voltage is shaken in journey " it is principle, foot air outlet mean temperature critical point B is blown in determination₀, B₀And A₀Corresponding to temperature Temperature damper feedback voltage V_tfB0-V_tfA0Absolute value >=0.1V.It is extracted when foot mode is blown in the face of blowing needed for temperature damper with this Control data.The control data of feedback voltage corresponding to each air outlet temperature value are extracted simultaneously；Referring in above-mentioned 1.1 The feedback voltage of temperature damper can select as follows:

Table 2

1) as 2.2V≤V_tfThe automatic control critical point under foot mode is blown as the face of blowing when≤2.8V, two boundary end points can According to circumstances to be corrected when real vehicle is demarcated；

2) as Vtf < 2.2V, face air port leaving air temp is individually blown more than 25 DEG C, human body comfort may be unsatisfactory for and want It asks, therefore the automatic control of temperature damper is not paid close attention to when foot mode is blown in the face of blowing automatically.

Table 3 provided in this embodiment is that HVAC blows foot model temperature linear data (homologous thread is shown in Fig. 3, and Fig. 3 is to blow foot mould Formula temperature damper in the relation curve of different location feedback voltage and 4 air outlet temperatures, arrived from above by curve upper right side in figure Under successively indicate to blow foot air outlet temperature schematic diagram, be followed successively by upper left air outlet, lower-left air outlet, bottom right air outlet, upper right goes out Air port), foot bottom right air port local temperature is higher by much than other.It is former according to " hot blow foot " in human body winter comfort demand Then, in the temperature linearity test data from HVAC assembly when blowing foot mode, extraction blow foot air outlet average temperature value be greater than etc. In critical temperature value B₁All data, while being considered as preventing damper motor from shaking required hysteresis voltage during operation (i.e. B₁And A₁Air door feedback voltage V corresponding to temperature_tfB1-V_tfA1Absolute value >=0.1V) temperature when blowing foot mode to extract Control data needed for air door.Since the HVAC assembly is respectively blown, the foot air port temperature difference is larger, and the present embodiment is flat according to foot air outlet is blown 25 DEG C of > of equal temperature is used as critically weighted B₁, while considering the feedback voltage of temperature damper in above-mentioned 1.2, it can make as follows Selection:

1) work as V_tf(correspondence blows foot zero point B to≤2.4V₁) when, as the automatic control for blowing temperature damper under foot mode Reference data according to circumstances can be corrected suitably in real vehicle calibration；

2) work as V_tfWhen≤0.9V, temperature damper has been rotated to most thermal potential and sets, and selects this feedback voltage as the pole in most hot end Limit binary values；

3) work as V_tfWhen > 2.4V, human body comfort requirement may be unsatisfactory for by corresponding to draught temperature, therefore blow foot automatically The automatic control of temperature damper is not paid close attention to when mode.

Table 3

Temperature damper comfort automatic control algorithm provided in this embodiment, specific as follows:

Be interior ideal comfort target temperature with automatic air condition set temperature Ts ± 2 DEG C, in conjunction with integrated temperature Tc and The data length of Ts is fitted temperature damper controlling curve.

As Tc=0, it is defaulted as the comfort central value of whole-vehicle air-conditioner, the fitting temperature value of corresponding temperature damper is most Amount 22~25 DEG C of ranges of selection, the present embodiment with the mean temperature after the corresponding fitting of Tc=0 for 23.5 DEG C, i.e. stagnation temperature in table 1 Spend A₀Point (corresponding feedback voltage V_tf=2.6V).Mean temperature in table 1 is lower than A₀The temperature value and corresponding feedback voltage of point It moves directly in table 4, as automatic control reference data of the temperature damper in the case where blowing surface model；

By temperature damper feedback voltage 2.2V≤V in table 2_tfAverage temperature value between≤2.5V is (for the temperature of 8 air outlets Degree average value) and corresponding feedback voltage sequentially be transplanted in table 4, connected with above-mentioned 2.1 item data；

The average temperature value of temperature damper feedback voltage V tf≤2.1V in table 3 and corresponding feedback voltage sequence are transplanted It into table 4, is connected with above-mentioned 2.2 item data, the data obtained is as shown in table 4, this is the initial of temperature damper automatic control Fitting data；

Can be learnt according to table 4: this HVAC assembly is too fast in the temperature change of regional area, is especially blowing foot heating section (Vtf≤2.1V is with rear region).Therefore control need to be finely divided by the minimum step value 0.05V of servo motor；

Since HVAC assembly volume is big, cumulative errors are larger after air door mechanism assembly, generally can be to prevent air door from leaking out The air port HVAC and air door junction are equipped with sealing strip and do not use motor to turn to most cold and most thermoae in automatic control algorithm The mode that limit boundary position duration time delay is braked again, but use motor turns to when closing on boundary position, makes motor short The mode braked again after operating in Shi Yanchi (≤1 second).The method can not only make air door sufficiently compress sealing strip, avoid motor It is shaken in boundary position, can also reduce the motor rotation blockage time, substantially prolong the service life of motor；

The work of the temperature damper motor is through the following steps that realize:

It obtains temperature damper of the temperature damper motor when working under the face of blowing, the face of blowing blow foot, blow foot Three models and feeds back electricity Press V_tf；

Faster region is changed to air outlet temperature and carries out temperature and temperature damper feedback voltage V_tfSubdivision finally obtains complete The feedback voltage V of whole temperature damper_tf；

According to the T of variation_C, find the feedback voltage V of corresponding temperature damper_tfThen value controls temperature damper motor Rotation reaches designated position (the corresponding feedback voltage V in a position_tf)；

When temperature damper motor operation is to extreme boundary position, according to stopping immediately after the operation of the pre-set delay duration of runs Only, temperature damper Air Leakage is thoroughly avoided.

Table 4

The present embodiment sets the determination of target temperature Ts value in practical applications, the set temperature range of auto Air Conditioner Generally there is following two situation:

1. target temperature Ts is set within " LO (15.5 DEG C) ← → 16~32 DEG C ← → HI (32.5 DEG C) " range, by every 0.5 DEG C is finely divided, totally 35 points, i.e., from be most as cold as most hot at most only 35 gears can be taking human as carrying out interior target temperature Setting；

2. some vehicles, setting target temperature Ts is according to " LO (17.5 DEG C) ← → 18~32 DEG C ← → HI (32.5 DEG C) " Range shares 31 points come what is controlled, i.e., from be most as cold as most hot at most only 31 gears can be taking human as carrying out interior target temperature The setting of degree.

Therefore, the data volume according to said method extracted from HVAC inherent characteristic is simultaneously little, and at most only 35 points of data are adopted The control mode tabled look-up with " point-to-point " can easily cope with complicated work at real vehicle spring and autumn, the calibration of winter or summer road Condition situation makes comfort staking-out work get twice the result with half the effort；

The Ts value of the present embodiment is " LO (15.5 DEG C) ← → 16~32 DEG C ← → HI (32.5 DEG C) ", totally 35 data, choosing When selecting Tc=0, Ts=23.0, Ts are incremented by upwards by 0.5 DEG C with this value, are successively decreased downwards；It is simultaneously that temperature change in table 4 is faster Region, especially blows face, the data of blowing the face region Chui Jiao are finely divided interpolation, and remove several boundary values (Vtf > 3.8V and The data of Vtf < 1.1V), it is equal with Ts data length, it is as shown in Table 5 below.Fig. 5 is temperature damper feedback voltage after fitting With the relation curve of air port mean temperature.

Table 5

The determination of the integrated temperature Tc value of the present embodiment: since the index of most critical in human comfort impression is " temperature Degree ", and the actual temperature of interior space will receive temperature, the vehicle external environment temperature, sunshine of the sensor acquisition of interior installation The influence of the variables such as intensity, speed, therefore, the mathematical model of integrated temperature can be calculated as follows:

T_c=aT_i–T_s+E_o+E_s+E_sp+e；

Wherein, the collected temperature of Ti--- car sensor (a coefficient is usually 1)；The target temperature that Ts--- is manually set Degree；Eo--- vehicle external environment temperature compensation value；Es--- intensity of sunshine offset；Esp--- speed offset；The offset of e---TC Amount.

The acquisition of the vehicle interior temperature aTi value of the present embodiment: Ti is the collected sensor installation of vehicle interior temperature sensor institute The actual temperature value at position, it does not represent the true temperature of entire car.When vehicle interior temperature variation, Ti also has and mutually strains Change, therefore entire interior temperature change can be reflected by Ti.Situation is demarcated according to real vehicle comfort road to adjust Coefficient a, Ti are one of most important variable parameters in automatically controlling；

The acquisition of the vehicle external environment temperature compensation value Eo of the present embodiment: vehicle external environment temperature influences very car body thermic load Greatly, while the thermal insulation of car body material and leakproofness also bring along very big influence to vehicle interior temperature.These are influenced and non-linear change Change, and different types of vehicle offset can be variant.It, can be by theory in order to quickly carry out real vehicle comfort calibration Within the scope of -40~+40 DEG C upper, every 3~5 DEG C of the change of the collected temperature value TO of environment temperature sensor is compensated.This implementation Example is compensated by every 5 DEG C of change, such as Fig. 5 and table 6.If vehicle maximum cooling or heating capacity is insufficient, the benefit of TO can reduce Repay range.

Table 6

TO(℃)	Eo value
		≥40	4.0
34~39	2.5
		28~33	1.5
22~27	0.5
		16~21	-0.5
10~15	-1.5
		4~9	-2.5
- 2~3	-3.5
		- 8~-3	-4.5
- 14~-9	-5.5
		- 20~-15	-7.0
- 26~-21	-8.5
		≤-27	-9.5

The acquisition of the intensity of sunshine offset Es of the present embodiment: when stronger sunlight is irradiated to car body, interior thermic load It will increase；When sunlight is weaker, car thermic load can reduce again, therefore, it is necessary to carry out comfort compensation, compensation speed is in line with " the summer Ji Kuaijin moves back slowly, winter slow forward fast backward " principle, different intensity of sunshines, interior sunlight sensor can collect different electricity Pressure value, MCU can learn corresponding intensity of sunshine according to voltage value.The present embodiment is with sunlight strength≤500W/m2 offset Es =0, specific control parameter is shown in Fig. 6 and table 7:

1) summer is incremented by with every 0.01V/s if the current value > initial value of intensity of sunshine and approaches current value；Intensity of sunshine Current value < initial value when, successively decreased with every 0.005V/s and approach current value；

2) winter is incremented by with every 0.005V/s if the current value > initial value of intensity of sunshine and approaches current value；Intensity of sunshine Current value < initial value when, successively decreased with every 0.01V/s and approach current value.

Table 7

The acquisition of the speed offset Esp of the present embodiment: speed speed will affect the variation of car body thermic load, according to real vehicle road Road sign pledge love condition carry out adequate compensation.To body sealing and heat-insulated poor vehicle, offset be will increase.The present embodiment is with vehicle Offset Esp=0 when fast 40km/h, detailed controlling curve are as shown in Figure 7.

The acquisition of the offset e value of the present embodiment: it in real vehicle road calibration process, often encounters: interior practical head There are certain deviations for portion's mean temperature and target temperature, can carry out the amendment of e value to TC value according to actual deviation at this time.

The air-out mode air door comfort automatic control algorithm of the present embodiment: according to the above-mentioned three kinds of air-out modes of HVAC assembly The algorithm of lower temperature damper, can by temperature damper feedback voltage level useful in table 1, table 2, table 3 (i.e. critically weighted A0, B0, Data in the corresponding region A1, B1) it is integrated together, it is shown in Table 8.

The mutation formula algorithm of the present embodiment: air-out mode in table 8 is automatically switched into point A0, B0, A1, B1 and three kinds of outlet air moulds Formula is expressed with coordinate, and (the corresponding temperature damper feedback voltage of 4 switching points can be looked into from table 5 with Tc value as shown in Figure 8 To).This algorithm takes return difference control mode, avoids mode motor in switching point and the phenomenon that oscillation shake occurs；

HVAC producer often specifies manual (Manul) state lower die according to the allocation of the amount of air ratio of various air-out modes The position feedback voltage Vmf value of formula air door.Three kinds of air-out mode feedback voltage levels of the present embodiment, which are respectively as follows:, blows face Vmf=4.3V, Foot Vmf=3.5V is blown in the face of blowing, and blows foot Vmf=2.5V.

Table 8

According to Fig. 8, mutation formula algorithm flow is obtained, as shown in Figure 9.When air-conditioning system enters automatic (AUTO) state, It is analyzed according to Fig. 9 control flow, the mode air door of air-conditioning automatically switches to the corresponding position specified feedback voltage V mf.

The temperature damper control data blown under surface model are to blow surface model temperature line what acquisition HVAC producer provided In property data basis, and according to human body summer comfort demand, obtain in the following way:

It is the temperature when obtaining the face of blowing HVAC and blowing foot mode that the control of the temperature damper under foot mode data are blown in the face of blowing On the basis of linear data, and return difference is automatically controlled according to spring/autumn comfort and air-out mode, obtained in the following way It takes:

2) with B₀And A₀Air door feedback voltage V corresponding to mean temperature_tfB0-V_tfA0Absolute value >=0.1V control return Difference extracts control data；A₁Corresponding temperature air door feedback voltage is 2.2V, and B0 corresponding temperature air door feedback voltage is 2.8V, when 2.2V≤V_tfWhen≤2.8V, the automatic control reference data of temperature damper under foot mode is blown as the face of blowing；

The temperature damper control data blown under foot mode are the temperature linearity data when obtaining HVAC and blowing foot mode On the basis of, and return difference is automatically controlled according to winter comfort and air-out mode, obtained in the following way:

When the calibration of real vehicle road, the switching point in this algorithm can be carried out according to the distribution situation of vehicle interior temperature field Appropriate adjustment.

The gradual change type algorithm of the present embodiment: 4 switching points determined according to table 8 and Fig. 8 can be obtained as shown in Figure 10 to go out Wind mode automatic control algorithm blows foot ← → when the face of blowing ← → face of blowing and blows in the mutual conversion process in face, due to blowing face air port and blowing The distribution of foot tuyere air volume is different, is affected to vehicle interior temperature field distribution.Using gradual change type algorithm, air-out mode air door can be allowed It gradually shifts one's position, is more advantageous to the comfort calibration of air-conditioning.

Figure 11 is the mode air door automatic control flow chart figure of gradual change type algorithm, and by this process, air conditioning mode air door will be automatic It is switched to the corresponding position feedback voltage V mf.

Algorithm provided in this embodiment is realized according to air conditioning HVAC assembly heat-exchange system and control system product Automatic control algorithm.It is automatic to extract air-conditioning in conjunction with human body comfort demand by the data that the test of HVAC temperature linearity obtains Control data needed for controlling product, with fast accurate realize the calibration of whole-vehicle air-conditioner comfort.

Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention Art scheme is modified or replaced equivalently, and without departing from the objective and range of the technical program, should all be covered in the present invention Protection scope in.

Claims

1. the air conditioning for automobiles based on HVAC system controls data creation method, it is characterised in that: the following steps are included:

It is extracted from temperature linearity test data and is suitable for the blowing foot for air-conditioning in the face of blowing, the face of blowing and blow foot of human body comfort demand Temperature damper under Three models controls data；

Temperature damper motor is obtained to blow foot in the face of blowing, the face of blowing and blow corresponding to the temperature damper control data under foot Three models The temperature damper feedback voltage V of temperature damper motor_tf；

It is extracted from temperature damper control data and is suitable for blowing face, foot is blown in the face of blowing and blowing the mode conversion critical temperature of foot Three models Angle value；

Determine that mode damper motor blows foot in the face of blowing, the face of blowing and blows corresponding to the mode conversion critical temperature value under foot Three models Mode air door feedback voltage level V_mf；

By temperature damper feedback voltage V_tfWith mode air door feedback voltage level V_mfAs airconditioning control data and it is input to automobile sky It adjusts in controller.

2. the air conditioning for automobiles based on HVAC system controls data creation method as described in claim 1, it is characterised in that: described Air-conditioning blows foot and blow the temperature damper control data under foot Three models in the face of blowing, the face of blowing specifically to be obtained according to the following steps:

In the case where blowing surface model, according to human body summer comfort demand principle, from temperature linearity of the HVAC assembly when blowing surface model It is extracted in test data and blows face air outlet average temperature value less than or equal to preset threshold temperature value A₀All data, mention simultaneously Take damper motor feedback voltage V corresponding to each air outlet temperature value_tf；

In the case where foot mode is blown in the face of blowing, according to all face air outlet average temperature values that blow of vehicle less than or equal to preset threshold temperature value A₁、 And all foot air outlet average temperature values that blow of vehicle are more than or equal to preset threshold temperature value B₀Between data, while according to wind Door motor during operation needed for hysteresis voltage extract control data needed for temperature damper when foot mode is blown in the face of blowing, mention Take damper motor feedback voltage V corresponding to each air outlet temperature value_tf；

In the case where blowing foot mode, according to human body winter comfort demand principle, from temperature linearity of the HVAC assembly when blowing foot mode It is extracted in test data and blows foot air outlet average temperature value more than or equal to preset threshold temperature value B₁All data, while root According to damper motor during operation needed for hysteresis voltage blow foot mode to extract when temperature damper needed for control data, mention Take damper motor feedback voltage V corresponding to each air outlet temperature value_tf；

3. the air conditioning for automobiles based on HVAC system controls data creation method as described in claim 1, it is characterised in that: described Temperature damper feedback voltage V_tfThrough the following steps that obtain:

The voltage for obtaining temperature damper motor controls data；

Temperature damper control data are divided into several temperature-controlled zones；

Voltage control data are established into corresponding temperature damper feedback voltage V according to different temperature-controlled zones_tf。

4. the air conditioning for automobiles based on HVAC system controls data creation method as described in claim 1, it is characterised in that: described The work of temperature damper motor is through the following steps that realize:

Obtain temperature damper feedback voltage V of the temperature damper motor when working under the face of blowing, the face of blowing blow foot, blow foot Three models_tf；

Faster region is changed to air outlet temperature and carries out temperature and temperature damper feedback voltage V_tfSubdivision, finally obtains whole temperature Spend the feedback voltage V of air door_tf；

According to the integrated temperature T of variation_C, find the feedback voltage V of corresponding temperature damper_tfValue, then controls temperature damper Motor rotation reaches feedback voltage V_tfCorresponding designated position；

When temperature damper motor operation is to extreme boundary position, according to stopping after the operation of the pre-set delay duration of runs.

5. the air conditioning for automobiles based on HVAC system controls data creation method as described in claim 1, it is characterised in that: described The work of mode damper motor is realized by mutation formula control algolithm, and the mutation formula control algolithm is specifically according to following Step carries out:

Obtain critical temperature value, damper motor feedback voltage and the integrated temperature value T under each operating mode_C；

When operating mode is that foot mode is blown in the face of blowing, integrated temperature value T is judged_CWhether critical temperature value A is less than₁, if it is, It is transformed into and blows the damper motor feedback voltage of foot mode and controlled；If not and integrated temperature value is greater than critical temperature value B₀, It is then transformed into and blows the damper motor feedback voltage of surface model and controlled；If integrated temperature value is less than critical temperature value B₀When, then It is controlled according to the damper motor feedback voltage that foot mode is blown in the face of blowing；

When operating mode is to blow surface model, judge whether integrated temperature value is less than or equal to critical temperature value A_O, if it is, turning It changes to the face of blowing and blows the damper motor feedback voltage of foot mode and controlled；If it is not, then being transformed into the damper motor for blowing surface model Feedback voltage is controlled；

When operating mode is to blow foot mode, judge whether integrated temperature value is more than or equal to critical temperature value B₁, if it is, turning It changes to the face of blowing and blows the damper motor feedback voltage of foot mode and controlled；If it is not, then being transformed into the damper motor for blowing foot mode Feedback voltage is controlled.

6. the air conditioning for automobiles based on HVAC system controls data creation method as described in claim 1, it is characterised in that: described The work of mode damper motor is realized by gradual change type control algolithm, and the gradual change type control algolithm is specifically according to following Step carries out:

When operating mode is that foot mode is blown in the face of blowing, judge whether integrated temperature value is less than or equal to critical temperature value A₁, if so, It is then transformed into and blows the damper motor feedback voltage of foot mode and controlled；If not and integrated temperature value is greater than critical temperature value B₀, then it is transformed into and blows the damper motor feedback voltage of surface model and controlled；If integrated temperature value is less than or equal to critical temperature value B₀ When, then further judge whether integrated temperature changes, if it is increase, then shows that foot mode is blown and according to mode in the face of blowing Damper motor feedback voltage is controlled with default increment value；If it is reduction, then show that foot mode is blown and according to mould in the face of blowing Formula damper motor feedback voltage is controlled with default increment value；If it is remaining unchanged, then mode damper motor is kept to feed back Voltage is constant；

When operating mode is to blow surface model, judge whether integrated temperature value is less than critical temperature value A₀, if it is, showing It blows foot mode and is controlled according to mode damper motor feedback voltage with default increment value in the face of blowing；If it is not, then the mode of holding Damper motor feedback voltage is controlled；

When operating mode is to blow foot mode, judge whether integrated temperature value is more than or equal to critical temperature value B₁, if it is, aobvious The face of blowing is shown to blow foot mode and controlled according to mode damper motor feedback voltage with default increment value；If it is not, then keeping Mode damper motor feedback voltage is controlled.

7. the air conditioning for automobiles based on HVAC system controls data creation method as described in claim 1, it is characterised in that: described Blowing the temperature damper control data under surface model is blown in surface model temperature linearity data basis what acquisition HVAC producer provided, And according to human body summer comfort demand, obtain in the following way:

0) face air outlet mean temperature critical point A is blown in determination₀；

1) when blowing face air outlet mean temperature≤A₀When all air outlet mean temperatures and corresponding all temperature dampers feedback Voltage V_tf, as the control reference data for blowing surface model automatically；

2) work as V_tfWhen changing but blowing face air outlet mean temperature and do not change, i.e., temperature damper has been rotated to most cold position, selects this Extreme boundary numerical value of the feedback voltage as most cold end, i.e. feedback voltage V_tfAir outlet mean temperature is basically unchanged when >=4.0V Change；

3) when blowing face air outlet mean temperature > A₀When, i.e., the temperature of face air outlet is individually blown more than 25 DEG C, and air-conditioning stops automatic Control；

If 4) HVAC producer passs add drop by 0.2V and tested, is segmented according to 0.1 or 0.05V and carry out temperature value estimation, to temperature Degree, which changes faster region, must also be finely divided control；

It is the temperature linearity when obtaining the face of blowing HVAC and blowing foot mode that the control of the temperature damper under foot mode data are blown in the face of blowing On the basis of data, and return difference is automatically controlled according to spring/autumn comfort and air-out mode, obtained in the following way:

0) face air outlet mean temperature critical point A is blown in determination₁；

1) foot air outlet mean temperature critical point B is blown in determination₀；

2) foot air outlet mean temperature critical point B is blown in determination₀With blow face air outlet mean temperature critical point A₀Corresponding air door is anti- Feedthrough voltage V_tfB0-V_tfA0Absolute value, and according to V_tfB0-V_tfA0Absolute value >=preset value control return difference extract control number According to；Face air outlet mean temperature critical point A is blown when feedback voltage is located at₁Corresponding temperature air door feedback voltage is put down with foot air outlet is blown When between equal zero point B0 corresponding temperature air door feedback voltage, the automatic control of temperature damper under foot mode is blown as the face of blowing Reference data；

The temperature damper control data blown under foot mode are the bases of the temperature linearity data when obtaining HVAC and blowing foot mode On plinth, and return difference is automatically controlled according to winter comfort and air-out mode, obtained in the following way:

0) foot air outlet mean temperature critical point B is blown in determination₁；

1) foot air outlet mean temperature critical point B is blown in determination₁With blow face air outlet mean temperature critical point A₁Corresponding to mean temperature Temperature damper feedback voltage V_tfB1-V_tfA1Absolute value；And according to V_tfB1-V_tfA1Absolute value >=preset value control return difference To extract control data；When feedback voltage is less than or equal to blow foot air outlet mean temperature critical point B₁Corresponding temperature air door feedback electricity When pressure, reference data is automatically controlled under foot mode as blowing；

2) work as V_tfWhen changing but blowing foot air outlet mean temperature and hardly change, most thermal potential is had been rotated to as temperature damper and is set, Select extreme boundary numerical value of this feedback voltage as most hot end；

3) when blowing foot air outlet mean temperature < B₁When, stop the control for blowing temperature damper under foot mode.

8. the Automatic control method of air conditioner of automobile based on HVAC system, it is characterised in that: the following steps are included:

It is extracted from temperature linearity test data and is suitable for the blowing foot for air-conditioning in the face of blowing, the face of blowing and blow foot of human body comfort demand The automatic control data of temperature damper under Three models；

Temperature damper motor is obtained to blow foot in the face of blowing, the face of blowing and blow corresponding to the temperature damper control data under foot Three models The feedback voltage V of temperature damper motor_tf；

S2: from temperature damper control data in extract be suitable for blow face, foot is blown in the face of blowing and blow foot Three models mode conversion face Boundary's temperature value；

S3: by temperature damper feedback voltage V_tfWith mode air door feedback voltage level V_mfAs automatic air conditionning data and it is input to Automotive air-conditioning controller；

T_C=aT_i–T_S+E_O+E_S+E_SP+e；

Wherein, T_iFor interior NTC sensor temperature；A is coefficient；T_SFor the target temperature of setting；E_OFor vehicle external environment temperature-compensating Amount；E_SFor intensity of sunshine compensation rate；E_SPFor speed compensation rate；E is T_COffset；

S5: automotive air-conditioning controller is according to the integrated temperature T of real-time change_c, carry out temperature corresponding to temperature airdoor control data Spend air door feedback voltage V_tf, according to temperature damper feedback voltage V_tfDriving temperature damper motor works；

S6: automotive air-conditioning controller is according to the integrated temperature T of real-time change_cTo judge integrated temperature value T_cWhether reach mode to turn Critical temperature value is changed, if reached, by automotive air-conditioning controller according to mode air door feedback voltage V_mfDrive mode air door Motor works.

9. as claimed in claim 8 based on the Automatic control method of air conditioner of automobile of HVAC system, it is characterised in that: the air-conditioning Foot is blown in the face of blowing, the face of blowing and blows that temperature damper control data under foot Three models are specifically following to be obtained:

In the case where blowing foot mode, according to human body winter comfort demand principle, from temperature linearity of the HVAC assembly when blowing foot mode It is extracted in test data and blows foot air outlet average temperature value more than or equal to preset threshold temperature value B₁All data, while root According to damper motor during operation needed for hysteresis voltage blow foot mode to extract when temperature damper needed for control data, mention Take damper motor feedback voltage V corresponding to each air outlet temperature value_tf。

10. as claimed in claim 8 based on the Automatic control method of air conditioner of automobile of HVAC system, it is characterised in that: the mould The work of formula damper motor is realized by gradual change type control algolithm, and the gradual change type control algolithm is specifically according to following step It is rapid to carry out:

When operating mode is to blow foot mode, judge whether integrated temperature value is more than or equal to critical temperature value B₁, if it is, aobvious The face of blowing is shown to blow foot mode and controlled according to mode damper motor feedback voltage with default increment value；If it is not, then keeping Mode damper motor feedback voltage is controlled；

The temperature damper control data blown under surface model are to blow surface model temperature linearity number what acquisition HVAC producer provided On the basis of, and according to human body summer comfort demand, obtain in the following way: