CN106891861A - A kind of electric automobile defrosting control system and its control method - Google Patents
A kind of electric automobile defrosting control system and its control method Download PDFInfo
- Publication number
- CN106891861A CN106891861A CN201710138480.1A CN201710138480A CN106891861A CN 106891861 A CN106891861 A CN 106891861A CN 201710138480 A CN201710138480 A CN 201710138480A CN 106891861 A CN106891861 A CN 106891861A
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- Prior art keywords
- defrosting
- air outlet
- control
- air
- operating mode
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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
- B60S1/54—Cleaning windscreens, windows or optical devices using gas, e.g. hot air
Abstract
The invention discloses a kind of electric automobile defrosting control system and its control method, the defrosting initial stage of the present invention is low temperature big flow defrosting mode, it is ensured that the whole defrosting glass region of hot blast energy uniform fold, the temperature of whole frost layer is uniformly raised；After defrosting proceeds to the first Preset Time, the hot blast temperature of defrosting increases, the flow of air outlet is accordingly reduced in the case of guarantee defrosting power is constant, air outlet angle is also adjusted accordingly, it is now high temperature intermediate flow defrosting mode, defrosting hot blast temperature increases can be so that the frost layer of field of vision be melted quickly；After defrosting proceeds to the second Preset Time, the hot blast temperature reduction of defrosting, air outlet flow is also accordingly reduced, air outlet angle is also accordingly adjusted, it is now low temperature low discharge defrosting mode, the marginal portion frost layer of the defrosting principal security glass in this stage can gradually melt, and not cause secondary frosting.
Description
Technical field
The present invention relates to a kind of electric automobile defrosting control system and its control method.
Background technology
During northern Cold Winter, shield glass frosting is frequently problem, especially driver's seat area
Domain frost layer, directly influences the security in vehicle traveling process.Traditional Defroster device for vehicle system is circulated using engine cool
The waste heat of water introduces heat exchanger, and the air to introducing sends into defrosting duct and carries out wind screen defrosting after heating.However, with
The application of pure electric automobile and hybrid electric vehicle, not engine or enough engine exhaust heat heating cold airs, Er Qie
Northern Cold Winter, is accomplished by being defrosted before automobile starting, so needs are carried out using the defroster containing electric heater
Defrosting.
Traditional defrosting process, hot blast temperature and hot air flow keep constant, when the low i.e. defrosting temperature of consumed energy is low or
When flow is relatively low, defrosting effect is poor, and defrosting time is long not to reach defrosting requirement, and for the defrosting effect for obtaining, makes defrosting
When gas flow temperature and excessive flow, then the waste of energy is caused.
The content of the invention
The present invention is in order to solve the above problems, it is proposed that a kind of electric automobile defrosting control system and its control method, this
Invention adjusts defrosting hot blast temperature and hot air flow during defrosting, respectively in experience low temperature big flow defrosting mode, high temperature
Deng flow defrosting mode and low temperature low discharge defrosting mode, it is ensured that while defrosting is required, the traditional defrosting mode of contrast can be improved
Defrosting efficiency, saves the consumed energy of defrosting.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of electric automobile defrosting control system, including air blower, electric heater, control unit, defrosting duct and defrosting
Airduct, wherein, the air blower connect setting is provided with electric heater, electric heater in defrosting duct one end in defrosting duct
It is connected with control unit, multiple defrosting air pipes is provided with defrosting duct, the afterbody of the defrosting air pipe is provided with air outlet, air-out
At windshield, each air outlet is provided with the adjuster of adjustment air outlet angle, described control unit connection to mouth parallel arrangement
There is the detection module of measurement ambient temperature, described control unit sets multiple split times, control electricity according to environment temperature
Heater, adjuster and air blower are in different operating modes, carry out segmented defrosting.
The air outlet angle adjustment scope is 55 ° -75 °.
The air outlet is provided with hand regulator.
A kind of control method based on said system, comprises the following steps：Detection environment temperature, control unit is according to environment
The time period of temperature setting at least three, in first time period, control air blower works in first grade of operating mode and electric heater work
Make in second gear operating mode；In second time period, control air blower works in second gear operating mode and electric heater works in first
Gear operating mode；Within the 3rd time period, control air blower works in third gear operating mode and electric heater works in third gear operating mode,
In three time periods, controller constantly adjusts the angle of each air outlet；And air blower and first grade of operating mode of electric heater
Power is more than the power of second gear operating mode, the power of the power more than third gear operating mode of second gear operating mode.
It is such be designed to ensure that first time period defrosts before, defrosting mode be low temperature big flow pattern, it is ensured that heat
The whole defrosting glass region of wind energy uniform fold, the temperature of whole frost layer is uniformly raised, and frost layer also begins to uniform thawing.
Second time period, adjustment defrosting mode is high temperature intermediate flow pattern, that is, control appropriate reduction Defroster Outlet heat
Wind flow, it is ensured that the hot blast temperature that defrosted in the case of power is constant increases, adjustment hot blast flow direction just blows area of visual field, and defrost temperature
Increase and may be such that the frost layer in driver's seat region is melted within a short period of time so that influence reduction of the frost layer to driver, protect
Demonstrate,prove the security of driving.
After field of vision frost layer is all melted, reduce heating power, defrosting mode is adjusted to low temperature low discharge pattern, control
Defrosting hot blast temperature reduction, while Defroster Outlet hot air flow is reduced, adjustment hot blast flow direction, glass major part region frost layer is
Melt, low temperature low discharge defrosting hot blast can guarantee that windshield marginal portion frost layer is gradually melted, and not cause secondary frosting, greatly
It is big to have saved the consumed energy of defrosting.
Thus, saving of the division of time period to energy consumption plays an important role, and the time period is related to environment temperature, this
The time period of application is obtained by a large amount of vehicle defrosting-defogging simulation calculations and experiment, as a result as follows：
Preferably, the first time period is (0,5esin∣T∣], T is the environment temperature of detection, unit for degree Celsius, and be
Negative value.
The second time period is (5esin∣T∣,T be detection environment temperature, unit for degree Celsius,
And be negative value.
In first time period, the angle of air outlet is 58 °~64 °.
In second time period, the angle of air outlet is 68 °~73 °.
Within the 3rd time period, the angle of air outlet is 60 °~66 °.
Beneficial effects of the present invention are：
(1) Defroster Outlet hot blast temperature and hot air flow during existing defrosting are effectively solved and keeps constant, cause gear
Wind glass regional defrosting effect is inconsistent, cause defrost energy waste problem；
(2) control of hot blast temperature and hot air flow is carried out to defrosting different phase, defrosting efficiency is improved and is saved and defrost
The energy for being consumed；
(3) air outlet angle has electronic and manual both of which, can effectively be defrosted according to actual conditions；
(4) defrosting was divided into for three stages, the frost layer Variation Features also according to these three stages correspond to different defrostings respectively
Hot blast temperature and flow, meet wind screen defrosting requirement, improve defrosting efficiency and have saved the energy of defrosting consumption.
Brief description of the drawings
Fig. 1 is the flow chart of control method of the invention；
The electric automobile defroster structural representation that Fig. 2 is provided for the present invention；
Fig. 3 (a)-(c) be Founder of the present invention be day part frost layer change cloud atlas；
Wherein：1-air blower；2-electric heater；3-conditioning control unit；4-defrosting duct；5-defrosting air pipe；
6-Defroster Outlet.
Specific embodiment：
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 show the schematic flow diagram of the electric automobile defrosting control strategy of embodiments of the invention.As shown in figure 1,
Electric automobile defrosting control strategy is comprised the following steps：
S1：Detection environment temperature before defrosting.
S2：According to detection temperature, Preset Time is calculated, determine hot air flow and air outlet angle.
S3：Defrosting starts, control defrosting hot blast temperature and hot air flow and flow direction, is entered with low temperature big flow defrosting mode
OK.
Specifically, Preset Time is relevant with the environment temperature of detection, according to the environment temperature T of detection, wherein first is pre-
If the time：t1=5esin∣T∣, unit for degree Celsius, and be negative value, the second Preset Time：Unit is
Degree Celsius, and be negative value.By the air outlet hot air flow and air outlet angle that determine, the heat of electric heater in control defroster
Wind heating-up temperature and Defroster Outlet hot air flow, adjustment air outlet angle are 58 °~64 °.Larger hot air flow can be uniform
The whole defrosting region of covering, needs frost layer temperature uniformly to raise at the defrosting initial stage, and preliminary thawing takes place, and required removes
White temperature simultaneously need not be higher.
S4：After proceeding to the first Preset Time, it is ensured that power is constant, increase hot blast temperature, suitably reduce hot air flow, and
Adjustment hot blast flow direction just blows field of vision, is defrosted with high temperature intermediate flow defrosting mode.
When defroster brings into operation, the run time of start recording defrosting is for example defrosted by timer record and transported
The row time, when defrosting proceeds to the first preset time t1Afterwards, now frost layer starts uniform thawing, can be to the field of vision of windshield
Domain carries out targetedly preferential defrosting, i.e. control defrosting hot blast temperature and increases, and adjustment air outlet hot blast flow direction just blows field of vision
Domain, i.e., now air outlet angle is 68 °~73 ° so that the frost layer in driver's seat region is melted within a short period of time, so as to drop
Influence of the low frost layer to driver, it is ensured that the security of driving.Now ensure the constant appropriate reduction Defroster Outlet hot blast of power
Flow, is ensureing defrosting requirement while the consumption of energy can be reduced.
S5：After proceeding to the second Preset Time, hot blast temperature and hot air flow are reduced, it is appropriate to adjust air outlet angle, with
Low temperature low discharge defrosting mode is defrosted.
Specifically, after field of vision frost layer is all melted, i.e., high temperature intermediate flow defrosting mode proceed to second it is default when
Between t2Afterwards, control defrosting hot blast temperature reduction, while reducing Defroster Outlet hot air flow, appropriate adjustment air outlet angle is
60 °~66 °.Now the frost layer of the lower edges part of windshield is not melted all also, if still with the heat of high temperature intermediate flow
Wind is defrosted, and compared with the hot blast of low temperature low discharge defrosts, can not be obtained good defrosting effect and can be caused energy
Waste, if the windshield marginal portion frost layer that can guarantee that of being defrosted with low temperature low discharge hot blast is gradually melted, and do not draw
Secondary frosting is played, the consumed energy of defrosting is greatlyd save.
S6：Windshield frost layer is all melted, and defrosting terminates.
Generally speaking, the present invention is the electric automobile defrosting control strategy of embodiment, before ensureing that reaching defrosting requires
Put, defrosting process is divided into three phases：The defrosting initial stage is low temperature big flow defrosting mode, is preset when defrosting proceeds to first
After time, high temperature intermediate flow defrosting mode is adjusted to, after defrosting proceeds to the second Preset Time, is adjusted to low temperature low discharge
Defrosting mode.According to the frost layer Variation Features of defrosting different phase, the hot blast temperature and hot air flow of defrosting are adjusted, by emulation
Analysis and experimental verification find that the efficiency of defrosting is improved, and reduces energy dissipation.
As shown in Fig. 2 present invention also offers a kind of electric automobile defroster, including air blower 1, and connection air blower
The defrosting duct 4 of air outlet, is packaged in the electric heater 2 in defrosting duct, and the conditioning control unit 3 for controlling electric heater.
And preferably, described defrosting duct 4 sets parallel in instrument board after being guided by defrosting air pipe 5 near windshield
The multiple Defroster Outlets 6 of arrangement, and corresponding Electronic control handle is designed with each Defroster Outlet 6, adjustment defrosting in good time
The air outlet angle of air outlet, Electronic control handle is then by conditioning control unit control.
Air outlet angle adjustment value is corresponding in turn in 58 °~64 °, 68 °~73 °, 60 °~66 °.
Electric heater assembly is packaged in defrosting duct, electric heater assembly, is connected with conditioning control unit, airconditioning control
Unit is connected with detection module, and detection module is used to detect environment temperature.
As shown in Fig. 3 (a)-(c), on the premise of ensureing that reaching defrosting requires, by detecting environment temperature, and according to pre-
If defrosting time, defrosting process is divided into three phases：The defrosting initial stage is low temperature big flow defrosting mode, when defrosting proceeds to
After first Preset Time, high temperature intermediate flow defrosting mode is adjusted to, after defrosting proceeds to the second Preset Time, is adjusted to low
Warm low discharge defrosting mode.According to defrosting different phase frost layer Variation Features, adjust defrosting hot blast temperature, hot air flow and
Hot blast is flowed to, and is found by simulation analysis and experimental verification, and the efficiency of defrosting is improved, and the energy that the defrosting for greatling save is consumed
Amount.
Although above-mentioned be described with reference to accompanying drawing to specific embodiment of the invention, not to present invention protection model
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need the various modifications made by paying creative work or deformation still within protection scope of the present invention.
Claims (10)
1. a kind of electric automobile defrosting control system, it is characterized in that：Including air blower, electric heater, control unit, defrosting duct
And defrosting air pipe, wherein, the air blower connect setting is provided with electric heater in defrosting duct one end in defrosting duct, electricity
Heater is connected with control unit, and multiple defrosting air pipes are provided with defrosting duct, and the afterbody of the defrosting air pipe is provided with air-out
Mouthful, at windshield, each air outlet is provided with the adjuster of adjustment air outlet angle, the control list to air outlet parallel arrangement
Unit is connected with the detection module of measurement ambient temperature, and described control unit sets multiple split times according to environment temperature,
Control electric heater, adjuster and air blower are in different operating modes, carry out segmented defrosting.
2. a kind of electric automobile defrosting control system as claimed in claim 1, it is characterized in that：The air outlet angle adjustment model
Enclose is 55 ° -75 °.
3. a kind of electric automobile defrosting control system as claimed in claim 1, it is characterized in that：The air outlet is provided with manually
Adjuster.
4. a kind of control method of the system based on as any one of claim 1-3, it is characterized in that：Including following step
Suddenly：Detection environment temperature, control unit set at least three time periods according to environment temperature, in first time period, control drum
Blower fan work is in first grade of operating mode and electric heater works in second gear operating mode；In second time period, control air blower work
In second gear operating mode and electric heater works in first gear operating mode；Within the 3rd time period, control air blower works in third gear
Operating mode and electric heater works in third gear operating mode.
5. control method as claimed in claim 4, it is characterized in that：Within three time periods, controller constantly adjusts each and goes out
The angle in air port；And air blower is more than the power of second gear operating mode, second gear work with first grade of power of operating mode of electric heater
Power of the power of condition more than third gear operating mode.
6. control method as claimed in claim 4, it is characterized in that：The first time period is (0,5esin∣T∣], T is detection
Environment temperature.
7. control method as claimed in claim 4, it is characterized in that：The second time period is
T is the environment temperature of detection.
8. control method as claimed in claim 4, it is characterized in that：In first time period, the angle of air outlet for 58 °~
64°。
9. control method as claimed in claim 4, it is characterized in that：In second time period, the angle of air outlet for 68 °~
73°。
10. control method as claimed in claim 4, it is characterized in that：Within the 3rd time period, the angle of air outlet for 60 °~
66°。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710138480.1A CN106891861B (en) | 2017-03-09 | 2017-03-09 | Defrosting control system and method for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710138480.1A CN106891861B (en) | 2017-03-09 | 2017-03-09 | Defrosting control system and method for electric automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106891861A true CN106891861A (en) | 2017-06-27 |
| CN106891861B CN106891861B (en) | 2021-02-23 |
Family
ID=59185303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710138480.1A Active CN106891861B (en) | 2017-03-09 | 2017-03-09 | Defrosting control system and method for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106891861B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866739A (en) * | 2019-03-28 | 2019-06-11 | 吉林大学 | A kind of solar energy intelligent defrosting device and its control method |
| CN110696775A (en) * | 2019-10-28 | 2020-01-17 | 浙江吉利汽车研究院有限公司 | Windshield defrosting system and car |
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Patent Citations (6)
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| EP2082905A1 (en) * | 2008-01-24 | 2009-07-29 | Behr France Rouffach SAS | Device for windscreen deicing |
| CN102205782A (en) * | 2010-10-15 | 2011-10-05 | 浙江吉利汽车研究院有限公司 | Automatically-antifogging air-conditioning system and antifogging method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866739A (en) * | 2019-03-28 | 2019-06-11 | 吉林大学 | A kind of solar energy intelligent defrosting device and its control method |
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| CN110696775A (en) * | 2019-10-28 | 2020-01-17 | 浙江吉利汽车研究院有限公司 | Windshield defrosting system and car |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106891861B (en) | 2021-02-23 |
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