CN108016404A - Windshield defrosting control, control device and demister system - Google Patents
Windshield defrosting control, control device and demister system Download PDFInfo
- Publication number
- CN108016404A CN108016404A CN201610972276.5A CN201610972276A CN108016404A CN 108016404 A CN108016404 A CN 108016404A CN 201610972276 A CN201610972276 A CN 201610972276A CN 108016404 A CN108016404 A CN 108016404A
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- air outlet
- current temperatures
- target temperature
- evaporator
- corresponding target
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/023—Cleaning windscreens, windows or optical devices including defroster or demisting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/54—Cleaning windscreens, windows or optical devices using gas, e.g. hot air
Abstract
A kind of windshield defrosting control, control device and demister system.The described method includes：The Current Temperatures of evaporator air outlet, the Current Temperatures of air-conditioning box assembly air outlet, and windshield demisting target control parameter are obtained respectively；By the Current Temperatures of the evaporator air outlet compared with corresponding target temperature, and by the Current Temperatures of the air-conditioning box assembly air outlet compared with corresponding target temperature, the first comparative result and the second comparative result are respectively obtained；According to first comparative result and the second comparative result, adjust the refrigerating capacity of evaporator and total heating capacity of in-car condenser, so that the Current Temperatures of the Current Temperatures of the evaporator air outlet and the air-conditioning box assembly air outlet are respectively equal to corresponding target temperature, to carry out demisting to windshield.The cost that demisting is carried out to windshield can be reduced using the method.
Description
Technical field
The present invention relates to technical field of vehicle control, and in particular to a kind of windshield defrosting control, dress control are put
And demister system.
Background technology
In order to improve the comfort of vehicle, more and more vehicles are equipped with air-conditioning system on the market.When ring residing for vehicle
When the temperature in border is in the range of 0 DEG C~20 DEG C, the windshield of vehicle would generally haze.At this time, the air-conditioning system of vehicle can be into
Enter defogging mode, to achieve the purpose that demisting.
With energy saving and environmental consciousness enhancing, the air-conditioning system of current most of vehicles is heat pump type air conditioning system.It is right
In the vehicle using heat pump type air conditioning system, under defogging mode, it is impossible to only rely on heat pump type air conditioning system itself and reach to the glass that keeps out the wind
The purpose of glass demisting, and need the heating of electrical auxiliary heater (HV-PTC) to aid in can be only achieved the mesh to windshield demisting
's.
Specifically, under defogging mode, cool-down dehumidification first is carried out to air under dehumidification mode by heat pump type air conditioning system, then
After being heated by HV-PTC the temperature of HV-PTC air outlets is increased to comfort temperature, it is then sent through in passenger compartment, the demisting reached
Purpose.
Using above-mentioned defogging method, on the one hand need to start heat pump type air conditioning system and HV-PTC at the same time, therefore vehicle power
Consume larger, influence course continuation mileage；On the other hand strong windshield demisting could be met by needing to configure the higher HV-PTC of cost
And the comfort requirement of passenger compartment.
The content of the invention
The embodiment of the present invention solves the problems, such as it is how to reduce the cost that demisting is carried out to windshield.
To solve the above problems, the embodiment of the present invention provides a kind of windshield defrosting control, using heat pump air conditioner
System carries out demisting, and the control method includes：The Current Temperatures of evaporator air outlet, air-conditioning box assembly air outlet are obtained respectively
Current Temperatures, and windshield demisting target control parameter, the windshield demisting target control parameter include：Evaporation
The target temperature of device air outlet and the target temperature of air-conditioning box assembly air outlet；By the Current Temperatures of the evaporator air outlet
Compared with corresponding target temperature, and by the Current Temperatures of the air-conditioning box assembly air outlet and corresponding target temperature
It is compared, respectively obtains the first comparative result and the second comparative result；Knot is compared according to first comparative result and second
Fruit, adjusts the refrigerating capacity of evaporator and total heating capacity of in-car condenser so that the Current Temperatures of the evaporator air outlet and
The Current Temperatures of the air-conditioning box assembly air outlet are respectively equal to corresponding target temperature, to be removed to windshield
Mist.
Alternatively, it is described according to first comparative result and the second comparative result, adjust the refrigerating capacity and car of evaporator
Total heating capacity of inner condenser, including：When the Current Temperatures of the air-conditioning box assembly air outlet are less than corresponding target temperature, and
When the Current Temperatures of the evaporator air outlet are more than corresponding target temperature, the rotating speed of motor compressor is improved；When the sky
Adjust the Current Temperatures of box assembly air outlet to be less than corresponding target temperature, and the Current Temperatures of the evaporator air outlet be less than or
During equal to corresponding target temperature, the selected region of adjustment temperature damper motor is full thermal region；When the air-conditioning box assembly
The Current Temperatures of air outlet are greater than or equal to corresponding target temperature, and the Current Temperatures of the evaporator air outlet are more than correspondence
Target temperature when, reduce the aperture of electric expansion valve；When the Current Temperatures of the air-conditioning box assembly air outlet are greater than or equal to
Corresponding target temperature, and when the Current Temperatures of the evaporator air outlet are less than corresponding target temperature, reduce electric compressor
The rotating speed of machine.
Alternatively, the control method further includes：When the electric expansion valve aperture positioned at default minimum aperture and
When the Current Temperatures of the evaporator air outlet are still greater than corresponding target temperature, the rotating speed and temperature of motor compressor are adjusted
The selected region of damper motor.
Alternatively, the rotating speed of the adjustment motor compressor and the selected region of temperature damper motor, including：Improve
The rotating speed of the motor compressor, and it is cold and hot Mixed Zone to control the selected region of temperature damper motor at the same time.
Alternatively, the control method further includes：When the aperture of the electric expansion valve be located at default maximum opening and
When the Current Temperatures of the evaporator air outlet are still less than corresponding target temperature, adjust inner-outer circulation motor loop direction and
The rotating speed of motor compressor.
Alternatively, the rotating speed of the loop direction of the adjustment inner-outer circulation motor and motor compressor, including：Described in control
Inner-outer circulation motor is complete interior circulation, and improves the rotating speed of motor compressor at the same time.
The embodiment of the present invention additionally provides a kind of windshield demisting controlling device, is removed using heat pump type air conditioning system
Mist, the control device include：Acquiring unit, suitable for obtaining the Current Temperatures of evaporator air outlet respectively, air-conditioning box assembly goes out
The Current Temperatures in air port, and windshield demisting target control parameter, the windshield demisting target control parameter include：
The target temperature of evaporator air outlet and the target temperature of air-conditioning box assembly air outlet；Comparing unit, suitable for by the evaporation
The Current Temperatures of device air outlet are compared with corresponding target temperature, and the current temperature by the air-conditioning box assembly air outlet
Degree respectively obtains the first comparative result and the second comparative result compared with corresponding target temperature；First adjustment unit, is fitted
According to first comparative result and the second comparative result, the refrigerating capacity of evaporator and total heating of in-car condenser are adjusted
Amount so that the Current Temperatures of the Current Temperatures of the evaporator air outlet and the air-conditioning box assembly air outlet are respectively equal to respective
Corresponding target temperature, to carry out demisting to windshield.
Alternatively, first adjustment unit includes：First adjustment subelement, suitable for when the air-conditioning box assembly air outlet
Current Temperatures be less than corresponding target temperature, and the Current Temperatures of the evaporator air outlet are more than corresponding target temperature
When, improve the rotating speed of motor compressor；Second adjustment subelement, suitable for when the Current Temperatures of the air-conditioning box assembly air outlet it is small
In corresponding target temperature, and when the Current Temperatures of the evaporator air outlet are less than or equal to corresponding target temperature, adjustment
The selected region of temperature damper motor is full thermal region；3rd adjustment subelement, suitable for when the air-conditioning box assembly air outlet
Current Temperatures be greater than or equal to corresponding target temperature, and the Current Temperatures of the evaporator air outlet are more than corresponding target
During temperature, reduce the aperture of electric expansion valve；4th adjustment subelement, suitable for when the current temperature of the air-conditioning box assembly air outlet
Degree is greater than or equal to corresponding target temperature, and when the Current Temperatures of the evaporator air outlet are less than corresponding target temperature,
Reduce the rotating speed of motor compressor.
Alternatively, the control device further includes：Second adjustment unit, suitable for being located at when the aperture of the electric expansion valve
When the Current Temperatures of default minimum aperture and the evaporator air outlet are still greater than corresponding target temperature, electric compressor is adjusted
The rotating speed of machine and the selected region of temperature damper motor.
Alternatively, the second adjustment unit, suitable for being located at default minimum aperture in the aperture of the electric expansion valve
And the Current Temperatures of the evaporator air outlet still greater than corresponding target temperature when, improve the rotating speed of the motor compressor,
And it is cold and hot Mixed Zone to control the selected region of temperature damper motor at the same time.
Alternatively, the control device further includes：3rd adjustment unit, suitable for being located at when the aperture of the electric expansion valve
When the Current Temperatures of default maximum opening and the evaporator air outlet are still less than corresponding target temperature, inner-outer circulation is adjusted
The loop direction of motor and the rotating speed of motor compressor.
Alternatively, the 3rd adjustment unit, suitable for being located at default maximum opening in the aperture of the electric expansion valve
And the Current Temperatures of the evaporator air outlet still less than corresponding target temperature when, control the inner-outer circulation motor as in complete
Circulation, and the rotating speed of motor compressor is improved at the same time.
The embodiment of the present invention additionally provides a kind of windshield demister system, the system comprises：Windshield demisting control
Device and heat pump type air conditioning system processed；The windshield demisting controlling device is suitable for controlling the heat pump type air conditioning system to the glass that keeps out the wind
Glass carries out demisting.
Compared with prior art, the technical solution of the embodiment of the present invention has the following advantages：
Using the above scheme to windshield carry out demisting when, by by the Current Temperatures of evaporator air outlet with it is corresponding
Target temperature is compared, and the Current Temperatures of the air-conditioning box assembly air outlet are compared with corresponding target temperature
Compared with, and then the refrigerating capacity of evaporator and total heating capacity of in-car condenser are adjusted according to comparative result, it is finally reached to the glass that keeps out the wind
The purpose of glass demisting.In such scheme, either evaporator, or air-conditioning box assembly, or electric expansion valve, it is heat pump
Component inside air-conditioning system, heating auxiliary is carried out without using HV-PTC, therefore can effectively reduce demisting cost.
Brief description of the drawings
Fig. 1 is a kind of flow chart of windshield defrosting control in the embodiment of the present invention；
Fig. 2 is a kind of structure diagram of windshield demister system in the embodiment of the present invention；
Fig. 3 is the flow chart of another windshield defrosting control in the embodiment of the present invention；
Fig. 4 is a kind of structure diagram of windshield demisting controlling device in the embodiment of the present invention.
Embodiment
At present, when carrying out demisting to windshield, usually first air is carried out under dehumidification mode by heat pump type air conditioning system
Cool-down dehumidification, then after being heated by HV-PTC the temperature of HV-PTC air outlets is increased to comfort temperature, be then sent through in passenger compartment,
The purpose of the demisting reached.Since above-mentioned demisting process needs the heating auxiliary of HV-PTC to can be only achieved the mesh to windshield demisting
, cause demisting cost higher.
In view of the above-mentioned problems, an embodiment of the present invention provides a kind of defrosting control of windshield, the side is utilized
When method carries out demisting to windshield, by adjusting the refrigerating capacity of adjustment evaporator and total heating capacity of in-car condenser, to reach
To the purpose to windshield demisting.In the method, either evaporator, or air-conditioning box assembly, or electronic expansion
Valve, is the component inside heat pump type air conditioning system, and heating auxiliary is carried out without using HV-PTC, effectively reduces demisting cost.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention
Specific embodiment explain.
With reference to Fig. 1, an embodiment of the present invention provides a kind of defrosting control of windshield, in specific implementation, institute
The method of stating can use heat pump type air conditioning system to carry out demisting.First, in order to clearly describe the method, to the heat pump
Air-conditioning system is described as follows：
Fig. 2 is a kind of structure diagram of heat pump type air conditioning system used by the embodiment of the present invention.With reference to Fig. 2, the heat
Pump air conditioner system can include：
Motor compressor 21, air-conditioning box assembly 22, outdoor heat exchanger 23, electric expansion valve 24, two-way valve 25, gas-liquid separation
Device 26, and controller 27.Solid line represents air-conditioning duct connecting line, and dotted line represents electrical cable.Wherein, the air-conditioning box is total
It can include into 22：Evaporator 221, temperature damper motor 222, in-car condenser 223, inner-outer circulation motor 224 and heat
Power expansion valve 225.One end of motor compressor 21 is connected by gas-liquid separator 26 with evaporator 221, and the other end is cold with in-car
Condenser 223 connects.One end of outdoor heat exchanger 23 is connected by electric expansion valve 24 with in-car condenser 223, and the other end is with steaming
Hair device 221 connects.In-car condenser 223 is connected by two-way valve 25 and heating power expansion valve 225 with evaporator 221.Controller 27
Control the work of two-way valve 25, electric expansion valve 24, evaporator 221, inner-outer circulation motor 224 and temperature damper motor 222.
When carrying out demisting to windshield using above-mentioned heat pump type air conditioning system, the evaporator sky higher to water capacity is first passed through
Gas carries out cool-down dehumidification, obtains the relatively low air of temperature and water capacity, then by in-car condenser to the sky after evaporator processing
Gas is heated, and obtains the air that temperature is higher but water capacity is relatively low, finally will be transported to passenger compartment after the processing of in-car condenser
It is interior, to achieve the purpose that comfort demisting.
Below by taking the heat pump type air conditioning system shown in Fig. 2 as an example, the defrosting control of the windshield is carried out in detail
Explanation：
As shown in Figure 1, the method may include following steps：
Step 11, respectively obtain evaporator air outlet Current Temperatures, the Current Temperatures of air-conditioning box assembly air outlet, and
Windshield demisting target control parameter.
In specific implementation, various ways can be used to obtain the Current Temperatures CT1 and air-conditioning box of evaporator air outlet
The Current Temperatures CT2 of assembly air outlet.For example with reference to Fig. 2, evaporator temperature can be set in the air outlet position of evaporator 221
Sensor 227 is spent, air-conditioning box temperature sensor 226 is set in the air outlet position of air-conditioning box assembly 22.
In specific implementation, the windshield demisting target control parameter can include：The target of evaporator air outlet
The target temperature TT2 of temperature TT1 and air-conditioning box assembly air outlet.It is, of course, also possible to other parameters are obtained at the same time, such as wind
Target temperature in amount, passenger compartment etc..The windshield demisting target control parameter can obtain by way of interface inputs
Take, can also be obtained by way of remotely sending, specific acquisition modes are unrestricted.
In specific implementation, both above-mentioned windshield demisting can be implemented when heat pump type air conditioning system is in dehumidification mode
Control method, can also implement above-mentioned windshield defrosting control under other patterns, such as, refrigeration mode.It can manage
Solution, no matter in which kind of pattern, by adjusting the refrigerating capacity of evaporator and the heating capacity of in-car condenser, can reach pair
The purpose that evaporator air outlet temperature and air-conditioning box assembly air outlet temperature are adjusted.
Step 12, by the Current Temperatures of the evaporator air outlet compared with corresponding target temperature, and by institute
The Current Temperatures of air-conditioning box assembly air outlet are stated compared with corresponding target temperature, respectively obtain the first comparative result and
Two comparative results.
In specific implementation, it is unrestricted to the comparative sequence of evaporator air outlet temperature and air-conditioning box air outlet temperature.
For example size between the Current Temperatures CT1 of evaporator air outlet and corresponding target temperature TT1 can be compared at the same time, with
And the size between the Current Temperatures CT2 of air-conditioning box assembly air outlet and corresponding target temperature TT2.It is of course also possible to first
Compare the size between the Current Temperatures CT1 of evaporator air outlet and corresponding target temperature TT1, then compare air-conditioning box assembly
Size between the Current Temperatures CT2 of air outlet and corresponding target temperature TT2, can also first compare air-conditioning box assembly outlet air
Size between the Current Temperatures CT2 and corresponding target temperature TT2 of mouth, then compare the Current Temperatures of evaporator air outlet
Size between CT1 and corresponding target temperature TT1.
Step 13, according to first comparative result and the second comparative result, refrigerating capacity and the in-car for adjusting evaporator are cold
Total heating capacity of condenser so that the Current Temperatures of the Current Temperatures of the evaporator air outlet and the air-conditioning box assembly air outlet
Respectively equal to corresponding target temperature, to carry out demisting to windshield.
In specific implementation, the refrigerating capacity by adjusting evaporator can control evaporator to carry out cool-down dehumidification to air,
Obtain the air of corresponding water capacity.By adjusting total heating capacity of in-car condenser, air-conditioning box assembly air outlet can be controlled
Temperature, obtains the air of temperature pleasant.
In specific implementation, due to meeting law of conservation of energy inside heat pump type air conditioning system, it is in-car cold with reference to Fig. 2
The refrigerating capacity of refrigerating capacity+evaporator 221 of power consumption+outdoor heat-producing machine 23 of total heating capacity=motor compressor 21 of condenser 223.
Therefore, can by adjusting motor compressor 21, it is at least one in heat-producing machine 23 and evaporator 221 outside car, adjusted to reach
The purpose of total heating capacity of the in-car condenser 223 of section.
Fig. 3 is the flow chart of another windshield defrosting control provided in an embodiment of the present invention.
In specific implementation, when receiving the control instruction for starting demisting, start to perform described in the embodiment of the present invention
Windshield defrosting control, whole demisting control during, once receive terminate demisting control instruction, no matter when
Preceding specific the step of performing, how, that is, terminates whole demisting control process.In other words, windshield described in the embodiment of the present invention
The beginning and end of defrosting control, are controlled by control instruction input by user.Wherein, the control input by user
Instruction processed can take various forms, specific unrestricted.Also, user can be a variety of by operation interface, telecommunication etc.
Mode inputs the control instruction.
Below using the Current Temperatures of evaporator air outlet as CT1, the Current Temperatures of air-conditioning box assembly air outlet are that CT2 is
Example, is described in detail the method with reference to Fig. 2.
With reference to Fig. 3, the method may include following steps：
Step 301, CT1 and CT2 is obtained respectively.
Step 302, compare CT1 and TT1, and compare CT2 and TT2.
Wherein, step 301 and 302 be referred to it is above-mentioned description as described in step 11 and 12 is implemented, herein no longer
Repeat.
Step 303, judge whether CT1 is equal to TT1, and whether CT2 is equal to TT2.
Namely judge whether to meet at the same time that the Current Temperatures CT1 of evaporator air outlet is equal to corresponding target temperature TT1,
And the Current Temperatures CT2 of air-conditioning box assembly air outlet is equal to corresponding target temperature TT2.
As CT1=TT1 and CT2=TT2, step 301 is continued to execute, otherwise in CT1≤TT1 and CT2 ＜ TT2, is held
Row step 304；In CT1 ＞ TT1 and CT2 ＜ TT2, step 310 is performed；In CT1 ＞ TT1 and CT2 >=TT2, step is performed
311；In CT1≤TT1 and CT2 ＞ TT2, step 314 is performed.
The air that water capacity and temperature namely are met certain condition is transported in passenger compartment, is realized to windshield
Demisting.
Step 304, as CT1≤TT1 and CT2 ＜ TT2, judge whether temperature damper motor selects full thermal region.
Namely when the Current Temperatures CT1 of evaporator air outlet first reaches corresponding target temperature TT1, temperature wind is judged
Whether door motor selects full thermal region.
In specific implementation, it is usually provided with knob on temperature damper motor.Knob on temperature damper motor is rotated
To different regions, certain influence can be produced on the refrigerating capacity of evaporator and total heating capacity of in-car condenser.Specifically, will
Knob on temperature damper motor is rotated to full thermal region, cold and hot Mixed Zone and full cold-zone domain, the refrigeration of evaporator successively
Amount can gradually step up, and total heating capacity of in-car condenser can be reduced gradually.
When the full thermal region of temperature damper selection of Motor, step 306 is performed, otherwise performs step 305.
Step 305, it is full thermal region to control the selected region of temperature damper motor.
When the full thermal region of temperature damper selection of Motor, total heating capacity increase of in-car condenser, can make it that air-conditioning box is total
Current Temperatures CT2 into air outlet reaches corresponding target temperature TT2.
Step 306, the aperture of electric expansion valve is increased.
In specific implementation, reference Fig. 2, increases the aperture of electronic expansion 24, can increase the refrigeration of outdoor heat exchanger 23
Amount.In the case where heat pump type air conditioning system overall refrigerating effect is constant, the refrigerating capacity increase of outdoor heat exchanger 23, can cause evaporator
221 refrigerating capacity reduces, so as to improve the Current Temperatures CT1 of 221 air outlet of evaporator.
Step 307, judge whether the aperture of electric expansion valve reaches maximum opening and CT1 ＜ TT1.
When namely judging that the aperture of electric expansion valve reaches maximum opening, the Current Temperatures CT1 of evaporator air outlet is
It is no still less than corresponding target temperature TT1.
It should be noted that in specific implementation, the aperture of electric expansion valve can be increased according to default step-length, and
Every time after the aperture of increase electric expansion valve, Current Temperatures CT1 and the air-conditioning box assembly outlet air of evaporator air outlet are reacquired
The Current Temperatures CT2 of mouth, and compare CT1 and TT1, and compare CT2 and TT2, and perform corresponding operation according to comparative result.
If before the aperture of electric expansion valve reaches maximum opening, the Current Temperatures CT1 of evaporator air outlet is equal to corresponding target temperature
TT1 is spent, then need not perform step 306.
When the aperture of electric expansion valve reaches maximum opening, the Current Temperatures CT1 of evaporator air outlet is still less than correspondence
Target temperature TT1, then perform step 308, otherwise can continue to increase the aperture of electric expansion valve, that is, continue to execute step
Rapid 306.
Step 308, judge whether inner-outer circulation motor is circulation in complete.
When inner-outer circulation motor is circulation in complete, step 301 is performed, otherwise execution step 309.
Step 309, inner-outer circulation motor is adjusted as complete interior circulation.
By controlling the direction of rotation of inner-outer circulation motor, make its inside loop direction operating, evaporator can be improved
Load, and then improve the Current Temperatures CT1 of evaporator air outlet.
Step 310, as CT1 ＞ TT1 and CT2 ＜ TT2, the rotating speed of motor compressor is improved.
By improving the rotating speed of motor compressor, the overall refrigerating effect of heat pump type air conditioning system can be improved, can also be improved
The refrigerating capacity of evaporator.The refrigerating capacity of evaporator improves, and can cause the Current Temperatures CT1 of evaporator air outlet to reduce.
According to conservation of energy principle, the overall refrigerating effect of heat pump type air conditioning system is improved, that is, improves heat pump type air conditioning system
Total heating capacity, therefore the Current Temperatures CT2 of air-conditioning box assembly air outlet can be improved.
Step 311, as CT1 ＞ TT1 and CT2 >=TT2, the aperture of electric expansion valve is reduced.
By the aperture for reducing electric expansion valve, it is possible to reduce the refrigerating capacity of outdoor heat exchanger.It is total in heat pump type air conditioning system
In the case that refrigerating capacity is constant, the refrigerating capacity of outdoor heat exchanger is reduced, the refrigerating capacity of evaporator can be accordingly improved, also can
Reduce the Current Temperatures CT1 of evaporator air outlet.
Step 312, judge whether the aperture of electric expansion valve reaches minimum aperture and CT1 ＞ TT1.
When namely judging that the aperture of electric expansion valve reaches minimum aperture, the Current Temperatures CT1 of evaporator air outlet is
It is no still greater than corresponding target temperature TT1.
It should be noted that in specific implementation, the aperture of electric expansion valve can be reduced according to default step-length, and
After the aperture for reducing electric expansion valve every time, Current Temperatures CT1 and the air-conditioning box assembly outlet air of evaporator air outlet are reacquired
The Current Temperatures CT2 of mouth, and compare CT1 and TT1, and compare CT2 and TT2, and perform corresponding operation according to comparative result.
If before the aperture of electric expansion valve is reduced to minimum aperture, the Current Temperatures CT1 of evaporator air outlet is equal to corresponding target
Temperature TT1, then need not perform step 313.
When the aperture of electric expansion valve is minimum aperture, the Current Temperatures CT1 of evaporator air outlet is still greater than corresponding
Target temperature TT1, then perform step 313, otherwise can continue to reduce the aperture of electric expansion valve, that is, continue to execute step
311。
Step 313, improve the rotating speed of motor compressor and control the cold and hot Mixed Zone of temperature damper selection of Motor.
After the aperture of electric expansion valve reaches minimum aperture, the rotating speed of motor compressor is improved, can be further improved
The refrigerating capacity of evaporator, reduces the Current Temperatures CT1 of evaporator air outlet.
At the same time, the cold and hot Mixed Zone of temperature damper selection of Motor is controlled, can be with further such that the refrigeration of evaporator
Amount improves, and total heating capacity of in-car condenser is reduced, it is possible thereby to further reduce the current temperature of evaporator air outlet
CT1 is spent, and reduces the Current Temperatures CT2 of air-conditioning box assembly air outlet.
It should be noted that, although the rotating speed for improving motor compressor can improve working as air-conditioning box assembly air outlet at the same time
Preceding temperature CT2, but in specific implementation, air-conditioning box assembly air outlet is worked as in the control cold and hot Mixed Zone of temperature damper selection of Motor
The reduction amplitude of preceding temperature CT2, when the Current Temperatures CT1 of typically larger than evaporator air outlet reaches corresponding target temperature, carries
Increase rate of the rotating speed of high motor compressor to the Current Temperatures CT2 of air-conditioning box assembly air outlet.Therefore, on the whole, carry
The rotating speed of high motor compressor simultaneously controls the cold and hot Mixed Zone of temperature damper selection of Motor, still can reduce air-conditioning box assembly outlet air
The Current Temperatures CT2 of mouth.
Step 314, as CT1≤TT1 and CT2 ＞ TT2, the rotating speed of motor compressor is reduced.
By reducing the rotating speed of motor compressor, the refrigeration of the total heating capacity and evaporator of in-car condenser can be reduced
Amount, therefore the Current Temperatures CT2 of air-conditioning box assembly air outlet and the Current Temperatures of evaporator air outlet can be improved at the same time
CT1。
It should be noted that when carrying out demisting using the defrosting control of above-mentioned windshield, due to evaporator outlet air
The Current Temperatures CT1 of mouth is usually both greater than corresponding target temperature TT1, and the Current Temperatures CT2 of air-conditioning box assembly air outlet leads to
Corresponding target temperature is often both less than, therefore, in specific implementation, in order to improve demisting efficiency, can receive user's
After demisting control instruction, that is, start motor compressor and improve the rotating speed of motor compressor, to reduce working as evaporator air outlet
The Current Temperatures CT2 of preceding temperature CT1 and air-conditioning box assembly air outlet.After preset duration, then perform step 301~315.Its
In, the preset duration can be set by those skilled in the art according to actual conditions.
It should be noted that during carrying out demisting using the defrosting control of above-mentioned windshield, can also adjust
The target temperature TT1 of evaporator air outlet, and the target temperature TT2 of air-conditioning box assembly air outlet are saved, but no matter evaporator goes out
The target temperature TT1 in air port, and the target temperature TT2 of air-conditioning box assembly air outlet concrete numerical value how, every time to CT1 with
When TT1 and CT2 are compared with TT2, all in accordance with the target temperature TT1 and air-conditioning box assembly of current evaporator air outlet
The target temperature TT2 of air outlet obtains corresponding comparative result, and the operation after execution.
In specific implementation, the structure of the heat pump type air conditioning system is not limited to structure cited in above-described embodiment,
Other structures are there is likely to be, such as, the heat pump type air conditioning system may increase other components or reduce some components.
But regardless of concrete structure, as long as the defogging method of the embodiment of the present invention can be used, it realize windshield demisting, not structure
The limitation of the paired embodiment of the present invention, and within protection scope of the present invention.
As shown in the above, the defrosting control of the windshield in the embodiment of the present invention, merely with heat pump air conditioner
The component of internal system, heating auxiliary is carried out without using HV-PTC, therefore effectively reduces demisting cost.
In order to more fully understand those skilled in the art and realize the embodiment of the present invention, below to above-mentioned windshield
Defrosting control corresponding to device be described in detail.
With reference to Fig. 4, an embodiment of the present invention provides a kind of windshield demisting controlling device 40, and described device 40 is using heat
Pump air conditioner system carries out demisting.
Specifically, described device 40 can include：Acquiring unit 41, comparing unit 42, and the first adjustment unit 43.Its
In：
The acquiring unit 41, suitable for obtaining the Current Temperatures of evaporator air outlet respectively, air-conditioning box assembly air outlet
Current Temperatures, and windshield demisting target control parameter, the windshield demisting target control parameter include：Evaporator
The target temperature of air outlet and the target temperature of air-conditioning box assembly air outlet；
The comparing unit 42, suitable for the Current Temperatures of the evaporator air outlet are compared with corresponding target temperature
Compared with, and the Current Temperatures of the air-conditioning box assembly air outlet are respectively obtained first compared with corresponding target temperature
Comparative result and the second comparative result；
First adjustment unit 43, suitable for according to first comparative result and the second comparative result, adjusting evaporator
Refrigerating capacity and in-car condenser total heating capacity so that the Current Temperatures of the evaporator air outlet and the air-conditioning box assembly
The Current Temperatures of air outlet are respectively equal to corresponding target temperature, to carry out demisting to windshield.
In one embodiment of this invention, first adjustment unit 43 can include：First adjustment subelement 431, the
Two adjustment subelements 432, the 3rd adjustment subelement 433 and the 4th adjust subelement 444.Wherein：
The first adjustment subelement 431, suitable for when the Current Temperatures of the air-conditioning box assembly air outlet are less than corresponding
Target temperature, and when the Current Temperatures of the evaporator air outlet are more than corresponding target temperature, improve turning for motor compressor
Speed；
The second adjustment subelement 432, suitable for when the Current Temperatures of the air-conditioning box assembly air outlet are less than corresponding
Target temperature, and when the Current Temperatures of the evaporator air outlet are less than or equal to corresponding target temperature, adjust temperature damper
The selected region of motor is full thermal region；
The 3rd adjustment subelement 433, suitable for being greater than or equal to when the Current Temperatures of the air-conditioning box assembly air outlet
Corresponding target temperature, and when the Current Temperatures of the evaporator air outlet are more than corresponding target temperature, reduce the electronics
The aperture of expansion valve；
The 4th adjustment subelement 444, suitable for being greater than or equal to when the Current Temperatures of the air-conditioning box assembly air outlet
Corresponding target temperature, and when the Current Temperatures of the evaporator air outlet are less than corresponding target temperature, reduce electric compressor
The rotating speed of machine.
In another embodiment of the invention, the control device 40 can also include：Second adjustment unit 44.Described
Two adjustment units 44, suitable for when the aperture of the electric expansion valve is positioned at default minimum aperture and the evaporator air outlet
When Current Temperatures are still greater than corresponding target temperature, rotating speed and the selected area of temperature damper motor of motor compressor are adjusted
Domain.
In specific implementation, the second adjustment unit 44, it is default suitable for being located in the aperture of the electric expansion valve
When the Current Temperatures of minimum aperture and the evaporator air outlet are still greater than corresponding target temperature, the motor compressor is improved
Rotating speed, and it is cold and hot Mixed Zone to control the selected region of temperature damper motor at the same time.
In another embodiment of the present invention, the control device 40 can also include：3rd adjustment unit 45.Described
Three adjustment units 45, suitable for being located at default maximum opening and the evaporator air outlet when the aperture of the electric expansion valve
When Current Temperatures are still less than corresponding target temperature, the loop direction of inner-outer circulation motor and the rotating speed of motor compressor are adjusted.
In specific implementation, the 3rd adjustment unit 45, it is default suitable for being located in the aperture of the electric expansion valve
When the Current Temperatures of maximum opening and the evaporator air outlet are still less than corresponding target temperature, the inner-outer circulation electricity is controlled
Machine is complete interior circulation, and improves the rotating speed of motor compressor at the same time.
The embodiment of the present invention additionally provides a kind of windshield demister system.The system can include：The above-mentioned glass that keeps out the wind
Glass demisting controlling device and heat pump type air conditioning system；The windshield demisting controlling device is suitable for controlling the heat pump type air conditioning system
Demisting is carried out to windshield.
In specific implementation, can be integrated in controller 27 with reference to Fig. 2, the windshield demisting controlling device, when
It can also be so independently arranged with controller 27, it is specific unrestricted.Under the control of the windshield demisting controlling device, only
Utilize the component of heat pump type air conditioning system itself, you can realize to windshield demisting.Wherein, the glass that keeps out the wind in the embodiment of the present invention
Glass, not only including front windshield, but also including rear seat windscreen, no matter front windshield or rear seat windscreen, can utilize
Defrosting control in the embodiment of the present invention carries out demisting.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
To instruct relevant hardware to complete by program, which can be stored in a computer-readable recording medium, storage
Medium can include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, are not departing from this
In the spirit and scope of invention, it can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the scope of restriction.
Claims (13)
- A kind of 1. windshield defrosting control, it is characterised in that demisting is carried out using heat pump type air conditioning system, including：The Current Temperatures of evaporator air outlet, the Current Temperatures of air-conditioning box assembly air outlet, and windshield is obtained respectively to remove Mist target control parameter, the windshield demisting target control parameter include：The target temperature and sky of evaporator air outlet Adjust the target temperature of box assembly air outlet；By the Current Temperatures of the evaporator air outlet compared with corresponding target temperature, and by the air-conditioning box assembly The Current Temperatures of air outlet respectively obtain the first comparative result and the second comparative result compared with corresponding target temperature；According to first comparative result and the second comparative result, the refrigerating capacity of evaporator and total heating of in-car condenser are adjusted Amount so that the Current Temperatures of the Current Temperatures of the evaporator air outlet and the air-conditioning box assembly air outlet are respectively equal to respective Corresponding target temperature, to carry out demisting to windshield.
- 2. windshield defrosting control as claimed in claim 1, it is characterised in that described to compare knot according to described first Fruit and the second comparative result, adjust the refrigerating capacity of evaporator and total heating capacity of in-car condenser, including：When the Current Temperatures of the air-conditioning box assembly air outlet are less than corresponding target temperature, and the evaporator air outlet is worked as When preceding temperature is more than corresponding target temperature, the rotating speed of motor compressor is improved；When the Current Temperatures of the air-conditioning box assembly air outlet are less than corresponding target temperature, and the evaporator air outlet is worked as When preceding temperature is less than or equal to corresponding target temperature, the selected region of adjustment temperature damper motor is full thermal region；When the Current Temperatures of the air-conditioning box assembly air outlet are greater than or equal to corresponding target temperature, and the evaporator outlet air When the Current Temperatures of mouth are more than corresponding target temperature, reduce the aperture of electric expansion valve；When the Current Temperatures of the air-conditioning box assembly air outlet are greater than or equal to corresponding target temperature, and the evaporator outlet air When the Current Temperatures of mouth are less than corresponding target temperature, the rotating speed of motor compressor is reduced.
- 3. windshield defrosting control as claimed in claim 2, it is characterised in that further include：When the electronic expansion When the aperture of valve is located at the Current Temperatures of default minimum aperture and the evaporator air outlet still greater than corresponding target temperature, Adjust rotating speed and the selected region of temperature damper motor of motor compressor.
- 4. windshield defrosting control as claimed in claim 3, it is characterised in that the adjustment motor compressor turns Speed and the selected region of temperature damper motor, including：The rotating speed of the motor compressor is improved, and it is cold and hot mixed zone to control the selected region of temperature damper motor at the same time Domain.
- 5. windshield defrosting control as claimed in claim 2, it is characterised in that further include：When the electronic expansion When the aperture of valve is located at the Current Temperatures of default maximum opening and the evaporator air outlet still less than corresponding target temperature, Adjust the loop direction of inner-outer circulation motor and the rotating speed of motor compressor.
- 6. windshield defrosting control as claimed in claim 5, it is characterised in that the adjustment inner-outer circulation motor The rotating speed of loop direction and motor compressor, including：The inner-outer circulation motor is controlled as complete interior circulation, and improves the rotating speed of motor compressor at the same time.
- A kind of 7. windshield demisting controlling device, it is characterised in that demisting is carried out using heat pump type air conditioning system, including：Acquiring unit, suitable for obtaining the Current Temperatures of evaporator air outlet respectively, the Current Temperatures of air-conditioning box assembly air outlet, with And windshield demisting target control parameter, the windshield demisting target control parameter include：The mesh of evaporator air outlet Mark the target temperature of temperature and air-conditioning box assembly air outlet；Comparing unit, suitable for by the Current Temperatures of the evaporator air outlet compared with corresponding target temperature, and will The Current Temperatures of the air-conditioning box assembly air outlet compared with corresponding target temperature, respectively obtain the first comparative result and Second comparative result；First adjustment unit, suitable for according to first comparative result and the second comparative result, adjust the refrigerating capacity of evaporator and Total heating capacity of in-car condenser so that the Current Temperatures of the evaporator air outlet and the air-conditioning box assembly air outlet are worked as Preceding temperature is respectively equal to corresponding target temperature, to carry out demisting to windshield.
- 8. windshield demisting controlling device as claimed in claim 7, it is characterised in that first adjustment unit includes：First adjustment subelement, suitable for being less than corresponding target temperature when the Current Temperatures of the air-conditioning box assembly air outlet, and When the Current Temperatures of the evaporator air outlet are more than corresponding target temperature, the rotating speed of motor compressor is improved；Second adjustment subelement, suitable for being less than corresponding target temperature when the Current Temperatures of the air-conditioning box assembly air outlet, and When the Current Temperatures of the evaporator air outlet are less than or equal to corresponding target temperature, adjustment temperature damper motor is selected Region is full thermal region；3rd adjustment subelement, suitable for being greater than or equal to corresponding target temperature when the Current Temperatures of the air-conditioning box assembly air outlet Degree, and when the Current Temperatures of the evaporator air outlet are more than corresponding target temperature, reduce the aperture of electric expansion valve；4th adjustment subelement, suitable for being greater than or equal to corresponding target temperature when the Current Temperatures of the air-conditioning box assembly air outlet Degree, and when the Current Temperatures of the evaporator air outlet are less than corresponding target temperature, reduce the rotating speed of motor compressor.
- 9. windshield demisting controlling device as claimed in claim 8, it is characterised in that further include：Second adjustment unit, suitable for when the aperture of the electric expansion valve is positioned at default minimum aperture and the evaporator outlet air When the Current Temperatures of mouth are still greater than corresponding target temperature, adjust selected by the rotating speed and temperature damper motor of motor compressor Region.
- 10. windshield demisting controlling device as claimed in claim 9, it is characterised in that the second adjustment unit, is suitable for It is located at the Current Temperatures of default minimum aperture and the evaporator air outlet still greater than right in the aperture of the electric expansion valve During the target temperature answered, the rotating speed of the motor compressor is improved, and controls the selected region of temperature damper motor to be at the same time Cold and hot Mixed Zone.
- 11. windshield demisting controlling device as claimed in claim 8, it is characterised in that further include：3rd adjustment unit, suitable for being located at default maximum opening and the evaporator outlet air when the aperture of the electric expansion valve When the Current Temperatures of mouth are still less than corresponding target temperature, the loop direction of inner-outer circulation motor and turning for motor compressor are adjusted Speed.
- 12. windshield demisting controlling device as claimed in claim 11, it is characterised in that the 3rd adjustment unit, is fitted In the electric expansion valve aperture be located at the Current Temperatures of default maximum opening and the evaporator air outlet still less than During corresponding target temperature, the inner-outer circulation motor is controlled as complete interior circulation, and improve the rotating speed of motor compressor at the same time.
- 13. a kind of windshield demister system, including：Windshield demisting controlling device and heat pump type air conditioning system；It is described to keep out the wind Glass demisting controlling device is suitable for controlling the heat pump type air conditioning system to carry out demisting to windshield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972276.5A CN108016404B (en) | 2016-11-04 | 2016-11-04 | Windshield defogging control method, control device and defogging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972276.5A CN108016404B (en) | 2016-11-04 | 2016-11-04 | Windshield defogging control method, control device and defogging system |
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| CN108016404A true CN108016404A (en) | 2018-05-11 |
| CN108016404B CN108016404B (en) | 2020-11-06 |
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|---|---|---|---|
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| CN112896097A (en) * | 2021-04-06 | 2021-06-04 | 浙江吉利控股集团有限公司 | Control method and device of vehicle cold-warm defrosting system, vehicle and storage medium |
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| CN108016404B (en) | 2020-11-06 |
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