CN108099849B - The control method and system of vehicle glass face defrosting deicing wiper - Google Patents
The control method and system of vehicle glass face defrosting deicing wiper Download PDFInfo
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- CN108099849B CN108099849B CN201711175517.4A CN201711175517A CN108099849B CN 108099849 B CN108099849 B CN 108099849B CN 201711175517 A CN201711175517 A CN 201711175517A CN 108099849 B CN108099849 B CN 108099849B
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- wiper
- cleaning solution
- deicing
- defrosting deicing
- defrosting
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- 238000010257 thawing Methods 0.000 title claims abstract description 80
- 239000011521 glass Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004140 cleaning Methods 0.000 claims abstract description 101
- 239000000243 solution Substances 0.000 claims abstract description 86
- 238000007790 scraping Methods 0.000 claims abstract description 48
- 238000002347 injection Methods 0.000 claims abstract description 33
- 239000007924 injection Substances 0.000 claims abstract description 33
- 230000004913 activation Effects 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 238000005507 spraying Methods 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 14
- 230000006870 function Effects 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 8
- 230000004044 response Effects 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
-
- 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
- B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
- B60S1/48—Liquid supply therefor
- B60S1/487—Liquid supply therefor the liquid being heated
- B60S1/488—Liquid supply therefor the liquid being heated electrically
-
- 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
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
- B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
-
- 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
- B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
- B60S1/48—Liquid supply therefor
- B60S1/481—Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means
- B60S1/485—Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
Abstract
The present invention proposes the control method and system of a kind of vehicle glass face defrosting deicing wiper, the position sensor that can detect the scraping arm position of the wiper is provided on the wiper, this method includes the defrosting deicing master control stage, the stage is the following steps are included: in wiper operational process, it obtains the position of the position sensor detection and determines its position rate, with the practical windscreen wiper speed of the determination wiper, and detect the motor output duty cycle of the wiper；Judgement is judged to avenging resistance state activation, is otherwise non-snow resistance state if the practical windscreen wiper speed is less than speed threshold value and the motor output duty cycle is greater than duty ratio threshold value；When the snow hinders state activation, automatic defrosting deicing function is carried out, heat driven duty ratio to default ratio is improved and is heated, and proposes the injection that high injection pressure carries out cleaning solution to reference pressure value simultaneously.Snow resistance can be removed automatically, promote vehicle user experience.
Description
Technical field
The present invention relates to the wiper technical field of vehicle more particularly to a kind of vehicle glass face defrosting deicing windscreen wipers
The control method and system of device.
Background technique
Winter vehicle is parked in open air, temperature lower than it is subzero when, can all have on windscreen after a period of time a thin layer of
White (ice), it is necessary to which cleaning out just can be with normal driving, and defrosting deicing (ice) is time-consuming and laborious manually.It is directly scraped if do not removed
Water can seriously affect the scraping blade service life.
Phenomenon is hindered if there is the snow of especially severe, windscreen wiper wiper torque can not overcome snow resistance resistance, and existing design is general
It is all to stop scraping after there is snow resistance phenomenon, or reduce and scrape water range.No matter which kind of above application scenarios all seriously reduce user's body
It tests.Field is used especially for intelligent vehicle, the limited use of windscreen wiper system may will affect Vehicular automatic driving system
Function, such as influence the camera etc. for being in windscreen rear.
Cleaning solution can be used for melting frost, and cleaning solution dosage is too fast, on the one hand will increase the expense burden of vehicle user, separately
On the one hand, to keep enough continuations of the journey to use ability, the capacity for passively increasing washing lotion pot is also needed, light weight is increased.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of control methods of vehicle glass face defrosting deicing wiper
And system, snow resistance can be removed automatically, promote vehicle user experience.
To solve the above problems, the present invention proposes a kind of control method of vehicle glass face defrosting deicing wiper, it is described
The position sensor that can detect the scraping arm position of the wiper is provided on wiper, this method includes defrosting deicing master control rank
Section, the stage the following steps are included:
S1: in wiper operational process, obtaining the position of the position sensor detection and determine its position rate,
With the practical windscreen wiper speed of the determination wiper, and detect the motor output duty cycle of the wiper；
S2: judgement, if the practical windscreen wiper speed is less than speed threshold value and the motor output duty cycle is greater than duty
Than threshold value, then it is judged to avenging resistance state activation, is otherwise non-snow resistance state；
S3: when the snow hinders state activation, carrying out automatic defrosting deicing function, improves heat driven duty ratio to default
Ratio is heated, and proposes the injection that high injection pressure carries out cleaning solution to reference pressure value simultaneously.
It according to one embodiment of present invention, further include defrosting deicing pre-control rank before the defrosting deicing master control stage
Section, the stage the following steps are included:
A1: requesting in response to externally input defrosting deicing, and activates defrosting deicing function manually；
A2: raising heat driven duty ratio to default ratio, and one section of preset time of heating is carried out to cleaning solution with this value,
Simultaneously in this section of preset time, to spray pressure as the injection of low voltage value progress cleaning solution, the range of the low voltage value is 1.1
~1.3bar；
A3: after the preset time, into the defrosting deicing master control stage.
According to one embodiment of present invention, under non-snow resistance state, heat driven duty is calculated with following formula (1)
Than, and cleaning solution is heated with this value, while to spray pressure as the injection of low voltage value progress cleaning solution；The formula
(1) are as follows:
Wherein,
P2=InjR × C2 × ρ 2 × (Tstd-Tamb)；
L: to scrape arm lengths；
ω: the angular speed of wiper scraping arm rotation；
D: the standard thickness at solid ice equivalent on glass surface predetermined；
TAmb: actual ambient temperature；
Tbas: it can guarantee the basal temperature that ice sufficiently melts；
ρ 1: for the density of water；
ρ 2: for the density of cleaning solution；
C1: the specific heat capacity of water；
C2: the specific heat capacity of cleaning solution；
P1: ice resistance is melted to the power of needs；
P2: cleaning solution compensates heating power；
Pe: the rated power of heater strip；
K: amplification coefficient；
InjR: benchmark jet velocity；
Tstd: the target heating temperature that ice-out is fallen.
According to one embodiment of present invention, the step S3 is back to step S1 after having executed and continues to execute.
According to one embodiment of present invention, when the scraping arm of wiper is run within the scope of upper rollback point predetermined angle
When, propose the injection that high injection pressure carries out cleaning solution to reference pressure value.
According to one embodiment of present invention, the reference pressure value is 2bar.
According to one embodiment of present invention, if wiper scrapes at least one period of water with the completion of ideal windscreen wiper speed,
Determine to complete the defrosting deicing master control stage, further includes that defrosting deicing wipes rank again after the defrosting deicing master control stage
Section, comprising: stop jet washing liquid, control wiper and wiped at least with the windscreen wiper speed for being higher than the defrosting deicing master control stage
A cycle.
According to one embodiment of present invention, the scraping arm of the wiper is equipped with rubber strip, the scraping arm or rubber
It is provided with the fluid passage in spraying cleaning solution hole and corresponding connection spraying cleaning solution hole on item, holds cleaning solution when cleaning pump operation
Cleaning solution in device is pumped into the fluid passage and is sprayed by the spraying cleaning solution hole, by heater strip to liquid
The cleaning solution in cleaning solution or lye container in channel is heated.
According to one embodiment of present invention, the position sensor is angle detector.
The present invention also provides a kind of vehicle glass face defrosting deicing wiper control system, comprising: scraping arm, cleaning pump,
Heater strip, lye container and controller；
The scraping arm of the wiper is equipped with rubber strip, be provided on the scraping arm or rubber strip spraying cleaning solution hole and
The fluid passage in corresponding connection spraying cleaning solution hole, is pumped into the liquid for the cleaning solution in lye container when cleaning pump operation
It is sprayed in body channel by the spraying cleaning solution hole, by heater strip to the cleaning solution or cleaning solution appearance in fluid passage
Cleaning solution in device is heated；
The controller includes memory, processor；The program that can be run on a processor is stored on the memory,
The processor performs the steps of when executing described program
S1: in wiper operational process, obtaining the position of the position sensor detection and determine its position rate,
With the practical windscreen wiper speed of the determination wiper, and detect the motor output duty cycle of the wiper；
S2: judgement, if the practical windscreen wiper speed is less than speed threshold value and the motor output duty cycle is greater than duty
Than threshold value, then it is judged to avenging resistance state activation, is otherwise non-snow resistance state；
S3: when the snow hinders state activation, carrying out automatic defrosting deicing function, improves heat driven duty ratio to default
Ratio is heated, and proposes the injection that high injection pressure carries out cleaning solution to reference pressure value simultaneously.
After adopting the above technical scheme, the present invention has the advantages that compared with prior art
The identification of snow resistance may be implemented and activate automatic defrosting deicing function, the heating of cleaning solution temperature will reach maximum capacity
Value makes cleaning solution have higher heat, but temperature controlled response speed does not have pressure control fast, is deicing as early as possible, immediately
High injection pressure is mentioned, to increase the amount of the cleaning solution for melting ice and snow, prestissimo can be use up and remove ice and snow etc.；
Optimization by heat driven duty ratio calculates, available optimal heating duty ratio, so that cleaning solution is appropriate
Ground is heated to optimum temperature, is sprayed in conjunction with the injection pressure of low voltage value, guarantees that ice face can be heated thawing as early as possible and remove
On the basis of, reduce overall power.
Detailed description of the invention
Fig. 1 is the flow diagram of the control method of the vehicle glass face defrosting deicing wiper of one embodiment of the invention；
Fig. 2 is the process signal of the control method of the vehicle glass face defrosting deicing wiper of another embodiment of the present invention
Figure；
The structural block diagram of the control system of the vehicle glass face defrosting deicing wiper of Fig. 3 another embodiment of the present invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention.But the present invention can be with
Much it is different from other way described herein to implement, those skilled in the art can be without prejudice to intension of the present invention the case where
Under do similar popularization, therefore the present invention is not limited to the specific embodiments disclosed below.
It is in one embodiment, described in the control method of vehicle glass face defrosting deicing wiper referring to Fig. 1 and Fig. 3
The position sensor that can detect the scraping arm position of the wiper is provided on wiper.
The control system correspondence of vehicle glass face defrosting deicing wiper can be system as shown in Figure 3, scraping arm, cleaning
Pump, heater strip, lye container and controller further include rain shaving electrical machine.Rain shaving electrical machine drives scraping arm under the control of the controller
It scrapes up and down, windscreen wiper speed is controlled by controller.Cleaning solution is stored in lye container, cleaning solution is, for example, bath of glass, removes
White liquid, deicing liquid etc. can defrost the liquid of deicing.Heater strip can be heated under the control of the controller, and temperature is by controlling
Device is adjusted, it is of course possible to be equipped with temperature sensor to feed back the real time temperature of heater strip or cleaning solution.Cleaning pump is in controller
The lower operation of control, the injection pressure of cleaning pump are adjusted by controller.
Preferably, the scraping arm of the wiper is equipped with rubber strip, enhances scraping effect, is also prevented from glass surface and is scratched；
It is provided with spraying cleaning solution hole on the scraping arm or rubber strip, and is provided with the fluid passage being connected to spraying cleaning solution hole,
Spraying cleaning solution hole is arranged along the length direction of scraping arm, and fluid passage can be hidden in behind spraying cleaning solution hole；Cleaning pump
When operation, the cleaning solution in lye container is pumped into the fluid passage, is sprayed by the spraying cleaning solution hole
Onto glass surface；The cleaning solution in the cleaning solution or lye container in fluid passage is heated by heater strip.
The control method of vehicle glass face defrosting deicing wiper includes defrosting deicing master control stage, the defrosting deicing master control
Stage the following steps are included:
S1: in wiper operational process, obtaining the position of the position sensor detection and determine its position rate,
With the practical windscreen wiper speed of the determination wiper, and detect the motor output duty cycle of the wiper；
S2: judgement, if the practical windscreen wiper speed is less than speed threshold value and the motor output duty cycle is greater than duty
Than threshold value, then it is judged to avenging resistance state activation, is otherwise non-snow resistance state；
S3: when the snow hinders state activation, carrying out automatic defrosting deicing function, improves heat driven duty ratio to default
Ratio is heated, and proposes the injection that high injection pressure carries out cleaning solution to reference pressure value simultaneously.
It defrosts in the deicing master control stage, wiper has begun the scraping up and down that operation carries out glass surface.On wiper
Position sensor is set, scraping arm position in the process of running can be perceived, it is preferred that position sensor is angle detection
Device can detecte the scraping arm angle in motion process, and the fortune of scraping arm is determined by the angle change of scraping arm within a certain period of time
Dynamic speed.When scraping arm is stopped completely by frost, which is zero.
In step sl, the position of the available position sensor detection of controller, e.g. angle-data, pass through position
Change rate calculate the practical windscreen wiper speed of wiper.At the same time it can also detect the motor output duty cycle of wiper, also
It is the duty ratio of the pwm control signal of rain shaving electrical machine, is exactly the output power that pwm control signal controls motor, and then controls
Movement velocity of the wiper scraping arm on glass surface, reversion.During the motion, it is likely that there is snow resistance situation, that is, there is heap
The solids such as long-pending ice, snow prevent scraping arm from continuing to run, and windscreen wiper driving torque can be because snow resistance increases, so that motor output accounts for
Empty ratio will increase.Preferably, when motor-driven load is greater than certain value, limiting motor torque no longer increases, so that scraping arm
It resists on obstacle.Motor output duty cycle can indicate the ideal windscreen wiper speed of wiper, however since snow hinders situation, meeting
The problem of wiper resistance stops or hinders slowly, practical windscreen wiper speed very little can occur motor output duty cycle is very big (reason occurs
By should be above bigger).
Then step S2 is executed, practical windscreen wiper speed, motor output duty cycle are judged respectively, if the practical rain
Speed is scraped less than speed threshold value and the motor output duty cycle is greater than duty ratio threshold value, then is judged to avenging resistance state and swashs
It is living, it can be 1 by snow resistance status indicator, be otherwise non-snow resistance state, it is 0 that non-snow can be hindered to status indicator.Identify snow resistance
After state, defrosting deicing function can be activated automatically.Under non-snow resistance state, it can be switched to from the control situation of snow resistance state
The control situation of non-snow resistance state is also possible to the holding of the control situation from non-snow resistance situation.
Then step S3 is executed, when the snow hinders state activation, carries out automatic defrosting deicing function, that is, improves heating and drives
Dynamic duty ratio to default ratio is heated, and proposes the injection that high injection pressure carries out cleaning solution to reference pressure value simultaneously.It is excellent
Choosing, presetting ratio is 100%, namely control heater strip is heated to rated power.Reference pressure value is, for example, 2bar, certainly
There can be certain coverage error or float up and down, only an optimal pressure value, it is specific unlimited.Heat driven duty ratio is got over
Greatly, heating temperature correspondence is bigger.
After occurring avenging resistance state, the injection pressure of cleaning pump is improved to as large as possible and cleaning solution heating power
To maximum capacity value.Purpose under snow resistance state is that most prestissimo removes ice and snow etc..Therefore temperature heating will reach maximum
Ability value i.e. 100% duty ratio, makes cleaning solution have higher heat.But temperature controlled response speed does not have pressure control
Fastly, it is deicing as early as possible, while mentions high injection pressure immediately, increases the amount of the cleaning solution for melting ice and snow.
After avenging the disappearance of resistance state, sprays pressure and heating power is preferably recovered to the state normally calculated.It is washed to save
Liquid dosage is washed, under non-snow resistance state, injection pressure is low voltage control, meanwhile, although not avenging resistance, in defrosting deicing master
The control stage, on glass surface or frosting or ice face, it is still necessary to which cleaning solution is heated.
Preferably, under non-snow resistance state, heat driven duty ratio is calculated with following formula (1), and with this value to washing
Liquid is heated, while to spray pressure as the injection of low voltage value progress cleaning solution, the range of low voltage value is 1.1~1.3bar；
The formula (1) are as follows:
Reasonable assumption is approximate: the initial condition before cleaning is glass surface ice.Cleaning solution first has to melt in the ice on glass surface
It melts, the original temperature of ice is environment temperature Tamb, needs to be promoted complete non-icing temperature Tstd by heat exchange.
Scraping arm is moved by angular speed of ω, then the volume for the ice that scraping arm is inswept is 1/2d × L^2 × ω within the unit time.Therefore
It is P1 that ice-out, which is fallen the power of needs, in unit time:
Furthermore, it is necessary to which it is as follows that cooling heat is heated to power required for Tstd:
P2=InjR × C2 × ρ 2 × (Tstd-Tamb).
Wherein,
L: to scrape arm lengths；Unit: rice；
ω: the angular speed of windscreen wiper scraping arm rotation；Unit rad/ seconds；
D: the standard thickness at solid ice equivalent on glass surface predetermined, such as 5mm；
TAmb: actual ambient temperature；Unit: DEG C；
Tbas: can guarantee the basal temperature that ice sufficiently melts, and be commonly defined as the temperature higher than freezing point, such as 4
℃；
ρ 1: for the density of water；
ρ 2: for the density of cleaning solution；
C1: the specific heat capacity of water, 4.2 × 103J/(kg℃)；
C2: the specific heat capacity of cleaning solution, about 3.8 × 103J/(kg℃)；
P1: ice resistance is melted to the power of needs；
P2: cleaning solution compensates heating power；
Pe: the power when rated power of heater strip, i.e. 100 duty ratios heat；
K: amplification coefficient generally takes K=1.2；
InjR: benchmark jet velocity, unit m3/s；
Tstd: the target heating temperature that ice-out is fallen；Such as take+4 DEG C of absolutely not icing possibility.
Optimization by heat driven duty ratio calculates, available optimal heating duty ratio, so that cleaning solution is appropriate
Ground is heated to optimum temperature, is sprayed in conjunction with the injection pressure of low voltage value, guarantees that ice face can be heated thawing as early as possible and remove
On the basis of, reduce overall power.
Preferably, step S3 is back to step S1 and continues to execute after having executed.Due to frost face be all it is zonal, thus
In the deicing defrosting stage, region can more contract smaller, and scraping arm is blocked position and can change in operational process, passes through return step
S1 is executed, and can corresponding position be again snow resistance state or non-snow resistance state, gradually the ice and snow obstacle of entire glass surface is removed.
It in one embodiment, further include defrosting before the deicing master control stage of defrosting referring to Fig. 2 in conjunction with previous embodiment
The deicing pre-control stage, the defrosting deicing pre-control stage the following steps are included:
A1: requesting in response to externally input defrosting deicing, and activates defrosting deicing function manually；
A2: raising heat driven duty ratio to default ratio, and one section of preset time of heating is carried out to cleaning solution with this value,
Such as 1g, while in this section of preset time, to spray pressure as the injection of low voltage value progress cleaning solution, the model of the low voltage value
It encloses for 1.1~1.3bar；Likewise, default ratio can be 100%；
A3: after the preset time, into the defrosting deicing master control stage.
The execution of deicing pre-control stage defrost before the deicing master control stage of defrosting, and is controlled by external input
Starting, in this stage, wiper is not run, i.e., is not scraped, and under ice and snow weather, having around the scraping arm of wiper can
There can be ice and snow, at this time if operation wiper can destroy scraping arm, thus first melt the ice on scraping arm or neighbouring glass surface as early as possible
Snow, this function can pass through manual actuation.
Preferably, in the defrosting deicing master control stage, when wiper is run, when the scraping arm of wiper is run to from upper rollback point
When within the scope of predetermined angle, such as within the scope of upper 3 ° of rollback point, the spray that high injection pressure carries out cleaning solution to reference pressure value is proposed
It penetrates, reference pressure value equally can be 2bar.For removing scraping blade rollback point on the ice and snow of upper rollback point environs, guarantee
There is no ice and snow nearby, avoids damaging scraping arm cutting edge.
Preferably, if wiper scrapes at least one period of water with the completion of ideal windscreen wiper speed, determine to complete the defrosting
Deicing master control stage, the defrosting deicing master control stage further include that defrosting deicing wipes the stage again later, comprising: stop sparging
Liquid is washed, wiper is controlled and carries out wiping at least one period with the windscreen wiper speed for being higher than the defrosting deicing master control stage, preferably with 40
Recycle/it is divided into speed, scrape water 1 or 2 periods.
The ideal windscreen wiper speed in defrosting deicing master control stage is, for example, 10 cycles per minutes, scrapes one, water with 10 cycles per minutes
In the period, complete just to represent after this period that defrosting deicing is clean, and the defrosting deicing master control stage just completes.But on glass
It also will continue to drop down water, it is exactly to scrape at least one period again that defrosting deicing wipes the stage again, will drop down the water come and wipe out.
The present invention also provides a kind of vehicle glass face defrosting deicing wiper control system, comprising: scraping arm, cleaning pump,
Heater strip, lye container and controller；
The scraping arm of the wiper is equipped with rubber strip, and spraying cleaning solution hole and right is provided on the scraping arm or rubber strip
It should be connected to the fluid passage in spraying cleaning solution hole, the cleaning solution in lye container is pumped into the liquid when cleaning pump operation
It is sprayed in channel and by the spraying cleaning solution hole, by heater strip to the cleaning solution or lye container in fluid passage
Interior cleaning solution is heated；
The controller includes memory, processor；The program that can be run on a processor is stored on the memory,
The processor performs the steps of when executing described program
S1: in wiper operational process, obtaining the position of the position sensor detection and determine its position rate,
With the practical windscreen wiper speed of the determination wiper, and detect the motor output duty cycle of the wiper；
S2: judgement, if the practical windscreen wiper speed is less than speed threshold value and the motor output duty cycle is greater than duty
Than threshold value, then it is judged to avenging resistance state activation, is otherwise non-snow resistance state；
S3: when the snow hinders state activation, carrying out automatic defrosting deicing function, improves heat driven duty ratio to default
Ratio is heated, and proposes the injection that high injection pressure carries out cleaning solution to reference pressure value simultaneously.
The particular content of control system about defrosting deicing wiper in vehicle glass face of the invention may refer to aforementioned
Specific descriptions in embodiment about the control method part of vehicle glass face defrosting deicing wiper, details are not described herein.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting claim, any this field
Technical staff without departing from the spirit and scope of the present invention, can make possible variation and modification, therefore of the invention
Protection scope should be subject to the range that the claims in the present invention are defined.
Claims (10)
1. a kind of control method of vehicle glass face defrosting deicing wiper, which is characterized in that being provided on the wiper can
Detect the position sensor of the scraping arm position of the wiper, this method includes the defrosting deicing master control stage, the stage include with
Lower step:
S1: it in wiper operational process, obtains the position of the position sensor detection and determines its position rate, with true
The practical windscreen wiper speed of the fixed wiper, and detect the motor output duty cycle of the wiper；
S2: judgement, if the practical windscreen wiper speed is less than speed threshold value and the motor output duty cycle is greater than duty ratio door
Limit value is then judged to avenging resistance state activation, is otherwise non-snow resistance state；
S3: when the snow hinders state activation, carrying out automatic defrosting deicing function, improves heat driven duty ratio to default ratio
It is heated, and proposes the injection that high injection pressure carries out cleaning solution to reference pressure value simultaneously.
2. the control method of defrosting deicing wiper in vehicle glass face as described in claim 1, which is characterized in that the defrosting
Further include the defrosting deicing pre-control stage before the deicing master control stage, the stage the following steps are included:
A1: requesting in response to externally input defrosting deicing, and activates defrosting deicing function manually；
A2: raising heat driven duty ratio to default ratio, and one section of preset time of heating is carried out to cleaning solution with this value, simultaneously
In this section of preset time, the injection of cleaning solution is carried out to spray pressure as low voltage value, the range of the low voltage value is 1.1~
1.3bar；
A3: after the preset time, into the defrosting deicing master control stage.
3. the control method of defrosting deicing wiper in vehicle glass face as described in claim 1, which is characterized in that hindered in non-snow
Under state, heat driven duty ratio is calculated with following formula (1), and heat with this value to cleaning solution, while with jet pressure
Power is the injection that low voltage value carries out cleaning solution；The formula (1) are as follows:
Wherein,
P2=InjR × C2 × p2 × (Tstd-Tamb)；
L: to scrape arm lengths；
ω: the angular speed of wiper scraping arm rotation；
D: the standard thickness at solid ice equivalent on glass surface predetermined；
Tamb: actual ambient temperature；
ρ 1: for the density of water；ρ 2: for the density of cleaning solution；
C1: the specific heat capacity of water；
C2: the specific heat capacity of cleaning solution；
P1: ice resistance is melted to the power of needs；
P2: cleaning solution compensates heating power；
Pe: the rated power of heater strip；
K: amplification coefficient；
InjR: benchmark jet velocity；
Tstd: the target heating temperature that ice-out is fallen.
4. the control method of defrosting deicing wiper in vehicle glass face as described in claim 1, which is characterized in that the step
S3 is back to step S1 and continues to execute after having executed.
5. the control method of defrosting deicing wiper in vehicle glass face as described in claim 1, which is characterized in that work as wiper
Scraping arm when running within the scope of upper rollback point predetermined angle, propose the spray that high injection pressure carries out cleaning solution to reference pressure value
It penetrates.
6. the control method of the vehicle glass face defrosting deicing wiper as described in any one of claim 1-5, feature
It is, the reference pressure value is 2bar.
7. the control method of the vehicle glass face defrosting deicing wiper as described in any one of claim 1-5, feature
It is, if wiper scrapes at least one period of water with the completion of ideal windscreen wiper speed, determines to complete the defrosting deicing master control rank
Section further includes that defrosting deicing wipes the stage again after the defrosting deicing master control stage, comprising: stop jet washing liquid, control
Wiper carries out wiping at least one period with the windscreen wiper speed for being higher than the defrosting deicing master control stage.
8. the control method of the vehicle glass face defrosting deicing wiper as described in any one of claim 1-5, feature
It is, the scraping arm of the wiper is equipped with rubber strip, and spraying cleaning solution hole and right is provided on the scraping arm or rubber strip
It should be connected to the fluid passage in spraying cleaning solution hole, the cleaning solution in lye container is pumped into the liquid when cleaning pump operation
It is sprayed in channel and by the spraying cleaning solution hole, by heater strip to the cleaning solution or lye container in fluid passage
Interior cleaning solution is heated.
9. the control method of the vehicle glass face defrosting deicing wiper as described in any one of claim 1-5, feature
It is, the position sensor is angle detector.
10. a kind of control system of vehicle glass face defrosting deicing wiper characterized by comprising scraping arm, adds cleaning pump
Heated filament, lye container and controller；
The scraping arm of the wiper is equipped with rubber strip, is provided with spraying cleaning solution hole and correspondence on the scraping arm or rubber strip
It is connected to the fluid passage in spraying cleaning solution hole, the cleaning solution in lye container is pumped into the liquid when cleaning pump operation and is led to
It is sprayed in road and by the spraying cleaning solution hole, by heater strip in the cleaning solution or lye container in fluid passage
Cleaning solution heated；
The controller includes memory, processor；The program that can be run on a processor is stored on the memory, it is described
Processor performs the steps of when executing described program
S1: it in wiper operational process, obtains the position of position sensor detection and determines its position rate, to determine
The practical windscreen wiper speed of wiper is stated, and detects the motor output duty cycle of the wiper；
S2: judgement, if the practical windscreen wiper speed is less than speed threshold value and the motor output duty cycle is greater than duty ratio door
Limit value is then judged to avenging resistance state activation, is otherwise non-snow resistance state；
S3: when the snow hinders state activation, carrying out automatic defrosting deicing function, improves heat driven duty ratio to default ratio
It is heated, and proposes the injection that high injection pressure carries out cleaning solution to reference pressure value simultaneously.
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| CN201711175517.4A CN108099849B (en) | 2017-11-22 | 2017-11-22 | The control method and system of vehicle glass face defrosting deicing wiper |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| FR3085924B1 (en) * | 2018-09-19 | 2022-08-12 | Valeo Systemes Dessuyage | METHOD FOR DEFROSTING A VEHICLE GLASS SURFACE |
| CN111907307A (en) * | 2019-05-08 | 2020-11-10 | 河南森源电动汽车有限公司 | Vehicle and vehicle defrosting system |
| CN112082746A (en) * | 2020-09-07 | 2020-12-15 | 中车长春轨道客车股份有限公司 | Motor train unit wiper swing abnormity monitoring and self-optimizing system |
| CN113282047A (en) * | 2021-06-08 | 2021-08-20 | 江苏航能科技有限公司 | Intelligent control system for marine windscreen wiper based on Internet of things and use method thereof |
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Denomination of invention: Control Method and System for Defrosting and Deicing Windshield Wipers on Automotive Glass Surfaces Effective date of registration: 20231009 Granted publication date: 20190927 Pledgee: Societe Generale Bank Co.,Ltd. Qingpu Branch of Shanghai Pledgor: SHANGHAI YUDIAN ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2023980060288 |
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