WO2003020559A1 - Window cleaning device - Google Patents

Window cleaning device Download PDF

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Publication number
WO2003020559A1
WO2003020559A1 PCT/FR2001/002724 FR0102724W WO03020559A1 WO 2003020559 A1 WO2003020559 A1 WO 2003020559A1 FR 0102724 W FR0102724 W FR 0102724W WO 03020559 A1 WO03020559 A1 WO 03020559A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
cleaning device
window
cleaning
projection
Prior art date
Application number
PCT/FR2001/002724
Other languages
French (fr)
Inventor
Franck Cathala
Jean-Pierre Eustache
Laurent Simon
Original Assignee
Valeo Systemes D'essuyage
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Systemes D'essuyage filed Critical Valeo Systemes D'essuyage
Priority to PCT/FR2001/002724 priority Critical patent/WO2003020559A1/en
Publication of WO2003020559A1 publication Critical patent/WO2003020559A1/en

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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
    • B60S1/481—Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means
    • B60S1/482—Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means combined with the operation of windscreen wipers
    • B60S1/483—Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means combined with the operation of windscreen wipers using a supply pump driven by the windscreen-wiper motor
    • 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
    • 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
    • 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
    • B60S1/50—Arrangement of reservoir
    • 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
    • B60S1/52—Arrangement of nozzles; Liquid spreading means
    • B60S1/522—Arrangement of nozzles; Liquid spreading means moving liquid spreading means, e.g. arranged in wiper arms

Definitions

  • the invention relates to a device for cleaning a window.
  • the invention relates more particularly to a device for cleaning a window of a motor vehicle.
  • Driving in the best safety conditions requires the driver to have the best possible visibility and it is for this purpose necessary that the various windows or windows of the vehicle, and in particular the windshield and the rear window, are the most own possible.
  • Such a flexible wiping blade also makes it possible to remove from the surface of the glass snowflakes or other elements, and in particular dirt, which are only deposited on the surface, that is to say which do not adhere to it too strongly.
  • the wiping blade at least one scraping blade in one or more sections, of the type in which at least the lower part of the blade is made of rigid or semi-material -rigid for removing from the surface solid bodies which adhere to it.
  • the lower part of the scraping blade constitutes an active part of the blade, that is to say that it comprises a scraping part.
  • the scraping part of the underside comprises the scraping means of the external surface of the glass which may consist of scraping teeth.
  • Each tooth can in particular have a different profile and the number and arrangement of the teeth can correspond to different combinations.
  • the scraping blade is mounted vertically movable, in both directions, between its high, retracted or retracted position, and an active low position in which the scraping blade cooperates with the face of the glass in order to scrape it.
  • the movement of the scraping blade is controlled by means such as hydraulic cylinders for controlling the movement of the blade.
  • a pressurized fluid which may be the liquid for washing the window to be wiped, is introduced into a control chamber for the jacks.
  • the return of the scraping blade to the high position can be obtained by a return spring.
  • the invention aims to propose a new design of a device for cleaning a window in order to obtain a perfectly effective cleaning of the window.
  • the invention provides a device for cleaning a window, in particular a window of a motor vehicle covered at least partially with frost and / or dirt, of the type which comprises at least one mechanism for windscreen wiper, a first cleaning circuit for spraying a first liquid on the window, and which comprises a reservoir for the first liquid, a first device for pressurizing the first liquid and at least one first device for projecting the first liquid onto the window, and of the type in which the first tanks, pressurizing device and spraying device are connected together, characterized in that that it comprises at least a second cleaning circuit for spraying onto the window a second liquid of a nature and / or composition and / or physical characteristics different from those of the first liquid.
  • a device for cleaning a window in particular a window of a motor vehicle covered at least partially with frost and / or dirt
  • the invention which comprises at least one mechanism for windscreen wiper, a first cleaning circuit for spraying a first liquid on the window, and which comprises a reservoir for the first liquid, a first device for press
  • the device comprises means for heating the second liquid
  • the means for heating the second liquid comprise an electrical heating resistance;
  • the heating means consist of an exothermic reaction, by mixing the second liquid with at least one reactive product;
  • the reactive product is a first solid element such as a powder or crystals which dissolves on contact with the second liquid;
  • the fourth liquid consists of at least one part of the liquid contained in the first tank
  • the device comprises a second means for pressurizing the second liquid;
  • the first and second means of pressurizing are a single means of pressurizing;
  • the second pressurizing means raise the pressure of the second liquid to a second higher pressure at a first pressure of the first liquid obtained by the first pressurizing means
  • the second liquid is projected onto the window to be cleaned by a second projection device;
  • - at least one of the projection devices comprises at least one projection nozzle;
  • At least one of the projection nozzles is carried by a mobile element, such as an arm or a blade of the wiper mechanism;
  • a fixed element such as a bodywork element of a vehicle;
  • At least one of the nozzles is located in a central position relative to the area of the window to be cleaned
  • At least one of the projection nozzles is orientable relative to the window to be cleaned as a function of at least one parameter of the vehicle such as the aerodynamic flow or the speed of the vehicle;
  • the second liquid has detergent properties
  • the second liquid consists of a detergent solution stored in a second tank
  • the second liquid is obtained by mixing a detergent substance with a fifth liquid
  • the fifth liquid consists at least in part of the liquid contained in the first tank;
  • the detergent substance is a solid element such as a tablet, which dissolves on contact with the fifth liquid;
  • the second liquid has de-icing properties
  • the second liquid consists of a deicing solution stored in a second tank;
  • the device has a third cleaning circu it for projecting on the glass a third liquid of a nature and / or composition and / or physical characteristics different from those of the first and second liquids;
  • the first and the second circuit comprise at least a first and / or a second pipe respectively which connects together the different components of the circuit;
  • the third circuit includes a third pipe which connects them the constituent elements of this third circuit;
  • circuits include common elements, such as a liquid reservoir, pressurizing means, a projection device, or a section of pipe;
  • the device comprises means for controlling the projection of at least one of the liquids;
  • the liquid spraying control means make it possible to spray the first and the second and / or the third liquid concomitantly; the control means are actuated manually by the user of the vehicle;
  • control means are actuated as a function of the climatic conditions outside the vehicle, such as the temperature, the dew point and the presence or not of rain; - The control means are actuated according to the presence of frost and / or dirt on the outer surface of the window to be cleaned;
  • the wiper mechanism comprises a wiper arm which is driven in alternating sweeping at least at a first speed which allows the cleaning of the window, and when at least one of the second and / or third liquids is projected onto the window, the wiper arm is driven at a second speed lower than the first to allow spreading of the second and / or third liquid.
  • Figure 1 represents a cleaning device 1 0, which makes it possible, in particular by the alternating rotation movement of windscreen wipers 12, to clean areas 14 which are delimited by dashed lines 16, of a window to be wiped, here of a windshield 18 of a motor vehicle.
  • the wipers can be driven according to several alternating rotation speeds.
  • the wipers 12 consist of an arm, one free end of which is driven in alternating rotation by a motor, not shown, and the other end of which carries a brush or a wiper blade of flexible material which allows to evacuate the water and / or the particles out of the zones 14 of the windshield 18.
  • the arms can also be driven according to an alternating linear sweep.
  • the cleaning device 10 comprises a first cleaning circuit 20 which makes it possible to spray a first liquid onto the windshield 18.
  • the first cleaning circuit 20 notably comprises a reservoir 22 which allows the storage of the first liquid. It comprises, in an upper wall 24, a filling orifice closed by a plug 26 which allows the user of the vehicle to fill it with the first liquid.
  • the first liquid generally consists of water to which a small amount of detergent liquid is added so as to facilitate cleaning of the windshield 18.
  • a drain orifice 28 is produced in a lower wall 30 of the reservoir 22, and it is in communication with a first pipe 32 which makes it possible to supply the first projection devices 34, here carried by the wipers 12.
  • a pressurizing device 36 such as a pump, is interposed in the pipe 32.
  • the first pressurized liquid is sprayed onto the windshield by the first projection devices 34.
  • the wipers 12 make it possible to wipe the windshield 18 when it is covered with liquids, such as rain water. When other elements such as deposits or dirt are deposited on its surface, the spraying of the first liquid on the windshield 18 makes it possible to suspend them then, similarly to the liquids, then the wiping blades of the wipers 12 evacuate them, out of the cleaning zone 14. The wipers 12 also make it possible to remove snowflakes from the surface of the windshield 18.
  • the projection of the first liquid does not allow the wipers 12 to sweep it. Indeed, even specific devices, such as for example scraping devices, are sometimes ineffective when the layer of frost or ice is too large.
  • the invention proposes to spray on the windshield 18 at least one second liquid of a nature and / or composition and / or physical characteristics different from those of the first liquid.
  • the cleaning device 10 comprises for this purpose a second 50 and a third 52 cleaning circuit which make it possible to spray a second and a third liquid respectively on the windshield 18. They have a nature and / or a composition and / or physical characteristics different from those of the first liquid, and also different from each other.
  • the second liquid has strongly detergent properties which can also be degreasing and which make it possible to separate dirt, even stubborn, from the outer surface of the windshield 18.
  • the third liquid can then have de-icing properties, that is to say that it has a low melting point which makes it possible to melt the frost and / or the ice formed on the outer surface of the windshield. 18.
  • the second liquid consists of a detergent solution which is stored in a second tank 54.
  • the third liquid is a deicing solution which is stored in a third tank 56.
  • 50 and third 52 circuits include second and third pressurizing means 58 and 60, as well as a second and third lines 62 and 64.
  • the three circuits 20, 50 and 52 are connected by a single pipe 66 to the projection devices 34.
  • the pressurizing means 36, 58 and 60 of the first, second and third liquids are activated by control means which can be manipulated by the user of the vehicle, or by processing of information supplied by sensors such as sensors for detecting the conditions of frost formation on the outer surface of the windshield 18, and / or for detecting the presence of frost on this outer surface, and / or for detecting the presence of stubborn dirt on this surface exterior, depending on the climatic conditions exterior to the vehicle, such as the temperature, the dew point and the presence or not of rain, or the presence of frost and / or dirt on the exterior surface of the windshield 18 to be cleaned .
  • control means which can be manipulated by the user of the vehicle, or by processing of information supplied by sensors such as sensors for detecting the conditions of frost formation on the outer surface of the windshield 18, and / or for detecting the presence of frost on this outer surface, and / or for detecting the presence of stubborn dirt on this surface exterior, depending on the climatic conditions exterior to the vehicle, such as the temperature, the dew point and the
  • the projection of the first, second and third liquids can be concomitant, or not, according to the wishes of the user or according to the information provided by the sensors.
  • Such a cleaning device 10 allows for example when stubborn dirt is "hung" on the outer surface of the windshield 18, to spray the second liquid having detergent properties so as to peel them off.
  • the wiper arms are driven in sweeping at a speed lower than the lowest of the wiping speeds. This reduced speed makes it possible to spread the second and / or third liquid (s).
  • the duration of contact between the second and / or third liquid (s) and stubborn dirt and / or frost and / or ice is extended, which promotes the detergent action of the second liquid and / or increases the effectiveness of the third liquid.
  • the liquid which consists of the mixture of the first and of the second liquid makes it possible to facilitate the cleaning of the external surface of the windshield 18.
  • the first and third liquids may not have deicing properties.
  • the liquid obtained has de-icing properties.
  • an exothermic reaction can occur which makes it possible to heat the mixture and thus to increase its temperature in order to increase its detergent activity, and to facilitate the melting of the frost present on the windshield 18.
  • FIG. 2 shows a second embodiment of the cleaning device 10 for the windshield 18.
  • the cleaning device 10 comprises the first circuit 20, the first liquid of which, which circulates in the first pipe 32, is sprayed onto the windshield 18 by the projection devices 34 fixed on the arms 12 movable in alternating rotation.
  • the third circuit 52 is in parallel with the first circuit 20. It projects onto the windshield 18, by a second projection device 70 which is for example a projection nozzle carried by the front cover of the vehicle, the third liquid, which has detergent properties.
  • the nozzle 70 projects the third liquid onto an area 71 of the outer surface of the windshield 1 8.
  • the area 71 is here smaller than the areas 14 to be cleaned.
  • the adjustment of the nozzle 70 makes it possible to adapt the position and the dimensions of the area 71 as a function of the area of the windshield 18 which requires significant defrosting.
  • the spray nozzle 70 is advantageously located in a central position relative to the zones 14 of the windshield 18 to be cleaned.
  • the projection nozzle 70 can be orientable relative to the area 71 of the outer surface of the windshield 18 as a function of at least one parameter of the vehicle such as the aerodynamic flow or the speed of the vehicle.
  • the control of the orientation of the projection nozzle 70 can also be obtained by a manual control actuated by the driver of the vehicle.
  • the first circuit 20 comprises two conduits 72 and 74 which come from the reservoir 22 and which connect to the first pipe 32.
  • the second conduit 74 is connected to a reservoir, not shown, comprising a liquid of a nature and / or of composition and / or of physical characteristics different from those of the first liquid.
  • the first conduit 72 comprises the pressurizing device 36 which raises the pressure of the first liquid at a first pressure as well as a first valve 73 of the non-return valve type.
  • the second conduit 74 successively comprises, from upstream to downstream according to the flow of the first liquid, an intermediate heating tank 76, a pressurizing device 78, a detergent container 80 and a first valve 82 of the check valve type. return.
  • the second conduit 74 is connected to a reservoir, not shown, comprising a liquid of a nature and / or of composition and / or of physical characteristics different from those of the first liquid.
  • the liquid which circulates in the second conduit 74 is a mixture of the first liquid with another liquid.
  • the first liquid is admitted by gravity into the intermediate heating tank 76 which makes it possible to increase its temperature in order to increase its detergent activity, and possibly to facilitate the melting of the frost present on the windshield 18.
  • the first heated liquid is then pressurized by the device 78, which is preferably a pump, which raises the pressure of the first heated liquid to a second pressure greater than the first pressure of the first liquid.
  • a pump will be called a high pressure pump 76
  • the pump constituting the pressurizing means 36 will be called a low pressure pump 36.
  • the detergent container 80 consists of a chamber in which is disposed a detergent substance which can be a solid element such as a tablet.
  • a detergent substance which can be a solid element such as a tablet.
  • the third pipe 64 comprises a bifurcation 84 between the pump 60, advantageously high pressure, and the nozzle 70.
  • a third conduit 86 connects the bifurcation 84 to a connection point 88 of the first pipe 32.
  • controlled valves 90 and 92 can be opened to allow the circulation of the third liquid in the third conduit 86 and the third pipe 64.
  • the opening of the valve 90 interposed in the third conduit 86 makes it possible to mix the third liquid defrosting the first liquid and spraying the mixture thus obtained by the nozzles 34 of the wipers 12.
  • the opening of the valve 92 interposed in the third pipe 64 makes it possible to spray the third "pure” liquid on the zone 71 of the windshield 18.
  • a control system makes it possible to activate or not the heating means 76, the pumps 36, 60 and 78, as well as the drive motors in scanning of the windscreen wipers 12, and the valves 90 and 92 according to the state of soiling and / or icing of the windshield 18, in particular of the zone to be cleaned 14.
  • the first heated liquid having detergent properties is then sprayed onto the windshield 18.
  • the high pressure and the temperature of the first liquid make it possible to improve its detergent effect.
  • frost and / or ice is formed on the windshield 18, several actions are possible.
  • the third liquid then mixes with the first heated liquid and the mixture thus obtained is sprayed at high pressure on the windshield 18 by the nozzles 34 of the wipers 12.
  • the increase in the temperature of the third liquid due to the first heated liquid promotes the melting of frost and / or ice.
  • Another action consists in activating the pump 60 and in opening the valve 92 previously or concomitantly with the commands carried out according to the preceding action.
  • the third pure liquid sprayed on the area 71 to be defrosted from the windshield 18 further increases the melting of the frost and / or ice.
  • the alternating speed of rotation of the wipers 12 is less than the smallest of the wiping speeds, so as to further improve the detergent activity of the heated liquid and / or the deicing power of the third liquid.
  • FIG. 3 A third embodiment of the cleaning device 10 for the windshield 18 is shown in FIG. 3.
  • the cleaning device 10 comprises the first circuit 20, the first liquid of which circulates in the first pipe 32 is sprayed onto the windshield 18 by a third projection device 100 which here consists of nozzles carried by the front cover of the vehicle .
  • the first liquid is then sprayed onto the zone 14 to be cleaned from the windshield 18 which is delimited substantially by a rectangle.
  • the second projection device 70 here makes it possible to project onto the windshield 18 the second and the third liquid circulating in the second and third pipes 62 and 64 which are here arranged in parallel.
  • the second circuit 50 makes it possible to project onto the windshield 18 a hot product having detergent properties.
  • the heating of the second liquid is obtained by its mixture and its exothermic reaction with a reactive product stored in a fourth tank 102.
  • the reactive product can be a solid element, such as a powder or crystals, which dissolves on contact with the second liquid.
  • the reactive product is a fourth liquid.
  • a mixing chamber 104 is inserted in the second pipe 62 and a fourth conduit 106 connects it to the fourth tank 102.
  • Two valves 108 and 110 are located in the fourth conduit 106 upstream and downstream respectively of a metering chamber 1 12.
  • the cleaning device 10 can also include a sensor which is fixed to the windshield 18 and which provides information, in particular information representative of the state of cleanliness or icing of its external surface. The information is then transmitted to an electronic control unit 1 14 which makes it possible in particular to activate the pumps 36, 58 and 60, the valves 108 and 1 1 0 as well as the drive motor for alternating rotation of the wipers (not shown). ).
  • the electronic control unit 114 allows the dosing of the reactive product.
  • the electronic control unit 1 14 causes the downstream valve 1 10 to close and the upstream valve 108 to open so as to fill the metering chamber 1 12 with reactive product.
  • the upstream valve 108 is closed and the downstream valve 110 is opened at the same time as the high pressure pump 58 is started.
  • the reactive product When the reactive product is a liquid, it can be metered directly into the metering chamber 1 12 by a pump, not shown.
  • the second liquid then mixes with the reactive product in the mixing chamber 104. An exothermic reaction then takes place which causes an increase in the temperature of the second liquid.
  • the second heated liquid has a strong detergent activity which, when sprayed onto the outer surface of the windshield 18, removes the same stubborn dirt.
  • the second heated liquid can also make it possible to increase the efficiency of the third liquid which has de-icing properties. Indeed, their mixture is a liquid having the two properties which allow the melting of frost and / or ice, that is to say a hot and defrosting liquid.
  • heating is obtained by mixing and exothermic reaction of the third liquid with a second reactive product stored in a fifth tank 120.
  • the mixing and the exothermic reaction are carried out directly on the windshield 18 of the vehicle.
  • the third liquid and the second reactive product are sprayed onto the windshield by respective separate nozzles 122 and 124.
  • the heated liquid makes it possible on the one hand to increase the efficiency of the third liquid for melting the frost and / or the ice formed on the windshield 18, but also to increase the detergent activity of the first and / or second liquids projected by the nozzles 34.
  • FIG. 5 A fourth embodiment of the cleaning device 10 for the windshield 18 is shown in FIG. 5.
  • the cleaning device 10 comprises the first circuit 20 in the first pipe 32 in which is interposed a piloted bifurcation 130 which allows the distribution between a branch point 131 of the downstream section of the first pipe 32 and a fifth conduit 132.
  • the second pipe 62 has a connection point 134 with the fifth pipe 132 which is located between the detergent container 80 and the mixing chamber 104 allowing an exothermic reaction.
  • Such a cleaning device 10 can then operate in three main modes.
  • the electronic control unit (not shown), controls in particular valves or flaps 136, 138, 140 and 142, the pumps 36, 78, the controlled bifurcation 130 for the routing of the first liquid in the cleaning device 10.
  • the first mode called "classic" mode allows the projection (at low pressure by the pump 36 and the first circuit 20) on the windshield 18 of the first liquid stored in the reservoir 22.
  • the pilot bifurcation 130 allows the passage of the first liquid only in the first pipe 32.
  • the first mode is activated when dirt is present on the outer surface of the windshield 18.
  • a valve 136 of the non-return type makes it possible to prevent the first liquid from going back into the second pipe 62.
  • the second mode causes the windshield 18 to defrost. It consists in at least partially diverting the flow rate of the first liquid in the fifth conduit 132, so as to supply the mixing chamber 104. A predetermined quantity, by dosing in the metering chamber 1 12, of the reactive product stored in the fourth tank 102 is then introduced into the mixing chamber 104 so as to cause an exothermic reaction to raise the temperature of the first liquid. The first heated liquid is then projected onto the windshield 18 by the nozzles 34 of the wipers 12.
  • the reactive product can, in addition to causing the exothermic reaction, modify the properties of the first liquid, for example by reducing its melting point.
  • the third mode allows the cleaning of stubborn dirt fixed on the outer surface of the windshield 18.
  • the high pressure pump 78 is then activated so as to cause the first liquid to pass through the detergent container 80, to give it the detergent properties of the second liquid.
  • a predetermined quantity of the reactive product is advantageously obtained for it. mixed so as to increase its temperature, and therefore the effectiveness of its detergent properties.
  • the reactive product can, in addition to causing the exothermic reaction, modify the properties of the second liquid, for example by increasing its detergent power.
  • the windscreen wipers 12 it is advantageous for the windscreen wipers 12 to rotate at a speed less than the lowest of the wiping speeds, so as to optimally spread the liquids and increase their efficiency .
  • Such a cleaning device 10 allows the use of a liquid common to all applications, whether it is a simple cleaning of the windshield 18, a cleaning of stubborn dirt or the removal of frost and / or ice.
  • a liquid which allows the cleaning of the windshield 18 for the "classic" mode preferably use a liquid which allows the cleaning of the windshield 18 for the "classic" mode

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

The invention relates to a device (10) for cleaning a window (18), particularly a motor vehicle window (18) which is at least partially covered with frost and/or grime. The inventive device is of the type that comprises: at least one windscreen wiper mechanism; a first cleaning circuit (20) which is used to spray a first liquid onto the window (18); a tank (22) for the first liquid; first means (36) for pressurising the first liquid; and at least one first device (34) for spraying the first liquid onto the window (18). Moreover, said device is of the type in which the first tank (22), pressurising means (36) and spray device (34) are all interconnected. The inventive device is characterised in that it comprises at least one second cleaning circuit (50) which is used to spray a second liquid onto the window (18), the nature and/or composition and/or physical characteristics of said second liquid being different from those of the first product.

Description

"Dispositif de nettoyage d'une vitre" "Glass cleaning device"
L'invention concerne un dispositif de nettoyage d'une vitre. L'invention concerne plus particulièrement un dispositif de nettoyage d'une vitre d'un véhicule automobile. La conduite automobile dans les meilleures conditions de sécurité nécessite pour le conducteur de disposer de la meilleure visibilité possible et il est à cet effet nécessaire que les différentes vitres ou glaces du véhicule, et notamment le pare- brise et la lunette arrière, soient les plus propres possibles. Afin d'assurer la propreté des vitres, il est connu d'agencer un ou plusieurs mécanismes d'essuie-glace qui entraînent chacun en balayage alterné une lame d'essuyage en matériau souple élastomère ayant pour fonction essentielle d'enlever les liquides présents à la surface externe de la vitre à essuyer, et notamment la pluie, afin d'assurer une bonne visibilité en cas d'intempéries.The invention relates to a device for cleaning a window. The invention relates more particularly to a device for cleaning a window of a motor vehicle. Driving in the best safety conditions requires the driver to have the best possible visibility and it is for this purpose necessary that the various windows or windows of the vehicle, and in particular the windshield and the rear window, are the most own possible. In order to ensure the cleanliness of the panes, it is known to arrange one or more wiper mechanisms which each drive in alternating wiping a wiper blade made of flexible elastomer material having the essential function of removing the liquids present in the external surface of the window to be wiped, and in particular rain, to ensure good visibility in bad weather.
Une telle lame sou ple d'essuyage permet aussi d'enlever de la surface de la vitre des flocons de neige ou d'autres éléments, et notamment des saletés, qui sont seulement déposés à la surface, c'est-à-dire qui n'y adhèrent pas de manière trop forte.Such a flexible wiping blade also makes it possible to remove from the surface of the glass snowflakes or other elements, and in particular dirt, which are only deposited on the surface, that is to say which do not adhere to it too strongly.
Lorsque la surface externe d'une vitre à essuyer est recouverte de dépôts, de différentes natures, qui sont globalement des éléments collés ou qui adhèrent à la surface de la vitre, une ou plusieurs lames souples d'essuyage sont le plus souvent inefficaces pour nettoyer la vitre, c'est-à-dire pour "décoller" ces éléments de la surface de la vitre et les évacuer dans une zone non gênante pour le conducteur.When the external surface of a glass to be wiped is covered with deposits, of different natures, which are generally glued elements or which adhere to the surface of the glass, one or more flexible wiping blades are most often ineffective for cleaning the window, that is to say to "peel off" these elements from the surface of the window and evacuate them in an area which does not interfere with the driver.
Afin de résoudre ce problème, il a déjà été proposé d'associer à la lame d'essuyage au moins une lame de grattage en un ou plusieurs tronçons, du type dans lequel au moins la partie inférieure de la lame est en matériau rigide ou semi-rigide pour enlever de la surface des corps solides qui y adhèrent. Par exemple la partie inférieure de la lame de grattage constitue une partie active de la lame, c'est-à-dire qu'elle comporte une partie de grattage.In order to solve this problem, it has already been proposed to associate with the wiping blade at least one scraping blade in one or more sections, of the type in which at least the lower part of the blade is made of rigid or semi-material -rigid for removing from the surface solid bodies which adhere to it. For example, the lower part of the scraping blade constitutes an active part of the blade, that is to say that it comprises a scraping part.
La partie de grattage de la face inférieure comporte les moyens de grattage de la surface externe de la vitre qui peuvent être constitués par des dents de grattage. Chaque dent peut notamment posséder un profil différent et le nombre et la disposition des dents peuvent correspondre à différentes combinaisons. La lame de grattage est montée mobile verticalement, dans les deux sens, entre sa position haute, rétractée ou escamotée, et une position basse active dans laquelle la lame de grattage coopère avec la face de la vitre en vue d'en effectuer un grattage.The scraping part of the underside comprises the scraping means of the external surface of the glass which may consist of scraping teeth. Each tooth can in particular have a different profile and the number and arrangement of the teeth can correspond to different combinations. The scraping blade is mounted vertically movable, in both directions, between its high, retracted or retracted position, and an active low position in which the scraping blade cooperates with the face of the glass in order to scrape it.
Le déplacement de la lame de grattage est commandé par des moyens tels que des vérins hydrauliques de commande des déplacements de la lame.The movement of the scraping blade is controlled by means such as hydraulic cylinders for controlling the movement of the blade.
Pour faire descendre la lame de grattage un fluide sous pression, qui peut être le liquide de lavage de la vitre à essuyer est introduit dans une chambre de commande des vérins. Le retour de la lame de grattage en position haute peut être obtenu par un ressort de rappel.To lower the scraping blade a pressurized fluid, which may be the liquid for washing the window to be wiped, is introduced into a control chamber for the jacks. The return of the scraping blade to the high position can be obtained by a return spring.
Cependant un tel dispositif ne permet pas toujours de nettoyer la vitre avec laquelle il est en contact, notamment lorsque les corps solides y adhèrent fortement et par exemple du givre ou de la glace.However, such a device does not always make it possible to clean the glass with which it is in contact, in particular when the solid bodies adhere strongly to it and for example frost or ice.
L'invention vise à proposer une nouvelle conception d'un dispositif de nettoyage d'une vitre afin d'obtenir un nettoyage parfaitement efficace de la vitre.The invention aims to propose a new design of a device for cleaning a window in order to obtain a perfectly effective cleaning of the window.
Dans ce but, l'invention propose un dispositif de nettoyage d'une vitre, notamment d'une vitre d'un véhicule automobile recouverte au moins partiellement de givre et/ou de salissu res, du type qui comporte au moins un mécanisme d'essuie-glace, un premier circuit de nettoyage pour projeter un premier liqu ide sur la vitre, et qui comprend un réservoir du premier liquide, un premier dispositif de mise sous pression du premier liquide et au moins un premier dispositif de projection du premier liquide sur la vitre, et du type dans lequel les premiers réservoir, dispositif de mise sous pression et dispositif de projection sont reliés entre eux, caractérisé en ce qu'il comporte au moins un deuxième circuit de nettoyage pour projeter su r la vitre un deuxième liquide de nature et/ou de composition et/ou de caractéristiques physiques différentes de celles du premier liquide. Selon d'autres caractéristiques de l'invention :To this end, the invention provides a device for cleaning a window, in particular a window of a motor vehicle covered at least partially with frost and / or dirt, of the type which comprises at least one mechanism for windscreen wiper, a first cleaning circuit for spraying a first liquid on the window, and which comprises a reservoir for the first liquid, a first device for pressurizing the first liquid and at least one first device for projecting the first liquid onto the window, and of the type in which the first tanks, pressurizing device and spraying device are connected together, characterized in that that it comprises at least a second cleaning circuit for spraying onto the window a second liquid of a nature and / or composition and / or physical characteristics different from those of the first liquid. According to other characteristics of the invention:
- le dispositif comporte des moyens de chauffage du deuxième liquide ;- The device comprises means for heating the second liquid;
- les moyens de chauffage du deuxième liquide comportent une résistance électrique de chauffage ; - les moyens de chauffage consistent en une réaction exothermique, par le mélange du deuxième liquide avec au moins un produit réactif ;the means for heating the second liquid comprise an electrical heating resistance; - The heating means consist of an exothermic reaction, by mixing the second liquid with at least one reactive product;
- le produit réactif est un quatrième liquide ;- the reactive product is a fourth liquid;
- le mélange du deuxième et du quatrième liquide est réalisé sur la vitre à nettoyer ;- The mixing of the second and fourth liquid is carried out on the window to be cleaned;
- le produit réactif est un premier élément solide tel qu'une poudre ou des cristaux qui se dissout au contact du deuxième liquide ;- The reactive product is a first solid element such as a powder or crystals which dissolves on contact with the second liquid;
- le mélange du deuxième liquide et du produit réactif est réalisé dans le deuxième circuit de nettoyage ;- The mixing of the second liquid and the reactive product is carried out in the second cleaning circuit;
- le quatrième liquide est constitué par au moins u ne partie du liquide contenu dans le premier réservoir ;- The fourth liquid consists of at least one part of the liquid contained in the first tank;
- le dispositif comporte un deuxième moyen de mise sous pression du deuxième liquide ; - les premiers et deuxièmes moyens de mise sous pression sont un moyen unique de mise sous pression ;- The device comprises a second means for pressurizing the second liquid; - The first and second means of pressurizing are a single means of pressurizing;
- les deuxièmes moyens de mise sous pression élèvent la pression du deuxième liquide à une deuxième pression supérieure à une première pression du premier liquide obtenue par les premiers moyens de mise sous pression ;- the second pressurizing means raise the pressure of the second liquid to a second higher pressure at a first pressure of the first liquid obtained by the first pressurizing means;
- le deuxième liquide est projeté sur la vitre à nettoyer par un deuxième dispositif de projection ; - l'un au moins des dispositifs de projection comporte au moins une buse de projection ;- The second liquid is projected onto the window to be cleaned by a second projection device; - at least one of the projection devices comprises at least one projection nozzle;
- l'une au moins des buses de projection est portée par un élément mobile, tel qu'un bras ou un balai du mécanisme d'essuie-glace ; - l'une au moins des buses de projection est portée par un élément fixe, tel qu'un élément de carrosserie d'un véhicule ;- at least one of the projection nozzles is carried by a mobile element, such as an arm or a blade of the wiper mechanism; - At least one of the projection nozzles is carried by a fixed element, such as a bodywork element of a vehicle;
- l'une au moins des buses est située dans une position centrale par rapport à la zone de la vitre à nettoyer ;- at least one of the nozzles is located in a central position relative to the area of the window to be cleaned;
- l'une au moins des buses de projection est orientable par rapport à la vitre à nettoyer en fonction d'au moins un paramètre du véhicule tel que le flux aérodynamique ou la vitesse du véhicule ;- At least one of the projection nozzles is orientable relative to the window to be cleaned as a function of at least one parameter of the vehicle such as the aerodynamic flow or the speed of the vehicle;
- le deuxième liquide a des propriétés détergentes ;- the second liquid has detergent properties;
- le deuxième liquide consiste en une solution détergente stockée dans un deuxième réservoir ;- the second liquid consists of a detergent solution stored in a second tank;
- le deuxième liquide est obtenu par le mélange d'une substance détergente avec un cinquième liquide ;- The second liquid is obtained by mixing a detergent substance with a fifth liquid;
- le cinquième liquide est constitué au moins en partie du liquide contenu dans le premier réservoir ; - la substance détergente est un élément solide tel qu'une pastille, qui se dissout au contact du cinquième liquide ;- The fifth liquid consists at least in part of the liquid contained in the first tank; - The detergent substance is a solid element such as a tablet, which dissolves on contact with the fifth liquid;
- le deuxième liquide a des propriétés dégivrantes ;- the second liquid has de-icing properties;
- le deuxième liquide consiste en une solution dégivrante stockée dans un deuxième réservoir ; - le d ispositif comporte u n troisième circu it de nettoyage pour projeter sur la vitre un troisième liquide de nature et/ou de composition et/ou de caractéristiques physiques différentes de celles du premier et du deuxième liquides ; - le premier et le deuxième circuit comportent au moins une première et/ou une deuxième canalisation respectivement qui relie entre eux les différents éléments constitutifs du circuit ;- the second liquid consists of a deicing solution stored in a second tank; - The device has a third cleaning circu it for projecting on the glass a third liquid of a nature and / or composition and / or physical characteristics different from those of the first and second liquids; - The first and the second circuit comprise at least a first and / or a second pipe respectively which connects together the different components of the circuit;
- le troisième circuit comporte une troisième canalisation qui relie entre eux les éléments constitutifs de ce troisième circuit ;- The third circuit includes a third pipe which connects them the constituent elements of this third circuit;
- au moins deux desdites première et/ou deuxième et/ou troisième canalisations sont reliées entre elles par ' un conduit supplémentaire qui s'étend d'un point de dérivation de l'une des canalisations à un point de raccordement de l'autre canalisation ;- at least two of said first and / or second and / or third pipes are interconnected by ' an additional conduit which extends from a point of derivation of one of the pipes to a connection point of the other pipe ;
- au moins deux desdits circuits comportent des éléments communs, tels qu'un réservoir de liquide, des moyens de mise sous pression, un dispositif de projection, ou un tronçon de canalisation ; - le dispositif comporte des moyens de commande de la projection d'au moins l'un des liquides ;- at least two of said circuits include common elements, such as a liquid reservoir, pressurizing means, a projection device, or a section of pipe; - The device comprises means for controlling the projection of at least one of the liquids;
- les moyens de commande de projection des liquides permettent de projeter concomitamment le premier et le deuxième et/ou le troisième liquide ; - les moyens de commande sont actionnés manuellement par l'utilisateur du véhicule ;the liquid spraying control means make it possible to spray the first and the second and / or the third liquid concomitantly; the control means are actuated manually by the user of the vehicle;
- les moyens de commande sont actionnés en fonction des conditions climatiques extérieures au véhicule, telles que la température, le point de rosée et la présence ou non de pluie ; - les moyens de commande sont actionnés en fonction de la présence de givre et/ou de salissures sur la surface extérieure de la vitre à nettoyer ;the control means are actuated as a function of the climatic conditions outside the vehicle, such as the temperature, the dew point and the presence or not of rain; - The control means are actuated according to the presence of frost and / or dirt on the outer surface of the window to be cleaned;
- le mécanisme d'essuie-glace comporte un bras d'essuie- glace qui est entraîné en balayage alterné selon au moins une première vitesse qui permet le nettoyage la vitre, et lorsque l'un au moins des deuxième et/ou troisième liquides est projeté sur la vitre, le bras d'essuie-glace est entraîné à une seconde vitesse plus faible que la première pour permettre l'étalement du deuxième et/ou du troisième liqu ide. D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels : - la figure 1 représente, de façon schématique, un premier exemple de réalisation d'un dispositif de nettoyage d'une vitre réalisé conformément aux enseignements de l'invention ;the wiper mechanism comprises a wiper arm which is driven in alternating sweeping at least at a first speed which allows the cleaning of the window, and when at least one of the second and / or third liquids is projected onto the window, the wiper arm is driven at a second speed lower than the first to allow spreading of the second and / or third liquid. Other characteristics and advantages of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the appended drawings in which: - Figure 1 shows, schematically, a first embodiment a device for cleaning a window produced in accordance with the teachings of the invention;
- les figures 2 à 5 représentent, de façon schématique, d'autres exemples de réalisation du dispositif de nettoyage d'une vitre qui sont réalisés conformément aux enseignements de l'invention.- Figures 2 to 5 show, schematically, other embodiments of the glass cleaning device which are produced in accordance with the teachings of the invention.
Dans la description qui va suivre, des composants identiques, similaires ou analogues seront désignés par les mêmes chiffres de référence. La figu re 1 représente un dispositif de nettoyage 1 0, qui permet, notamment par le mouvement de rotation alterné d'essuie-glaces 12, de nettoyer des zones 14 qui sont délimitées par des traits mixtes 16, d'une vitre à essuyer, ici d'un pare-brise 18 d'un véhicule automobile. De façon connue, les essuie-glaces peuvent être entraînés selon plusieurs vitesses de rotation alternée.In the description which follows, identical, similar or analogous components will be designated by the same reference numbers. Figure 1 represents a cleaning device 1 0, which makes it possible, in particular by the alternating rotation movement of windscreen wipers 12, to clean areas 14 which are delimited by dashed lines 16, of a window to be wiped, here of a windshield 18 of a motor vehicle. In known manner, the wipers can be driven according to several alternating rotation speeds.
En général, une petite et une grande vitesse d'essuyage sont utilisées en fonction des conditions extérieures, notamment de l'intensité des précipitations telles que la pluie ou la neige. De façon connue, les essuie-glaces 12 sont constitués par un bras dont une extrémité libre est entraînée en rotation alternée par u n moteur, non représenté, et dont l'autre extrémité porte un balai ou une lame d'essuyage en matériau souple qui permet d'évacuer l'eau et/ou les particules hors des zones 14 du pare- brise 18. Les bras peuvent aussi être entraînés selon u n balayage linéaire alterné.In general, a small and a high wiping speed are used depending on the external conditions, in particular the intensity of precipitation such as rain or snow. In known manner, the wipers 12 consist of an arm, one free end of which is driven in alternating rotation by a motor, not shown, and the other end of which carries a brush or a wiper blade of flexible material which allows to evacuate the water and / or the particles out of the zones 14 of the windshield 18. The arms can also be driven according to an alternating linear sweep.
Pour faciliter le nettoyage des zones 14, le dispositif de nettoyage 10 comporte un premier circuit de nettoyage 20 qui permet de projeter un premier liquide sur le pare-brise 18. Le premier circuit de nettoyage 20 comprend notamment un réservoir 22 qui permet le stockage du premier liquide. Il comporte, dans une paroi supérieure 24, un orifice de remplissage obturé par un bouchon 26 qui permet à l'utilisateur du véhicule de le remplir en premier liquide.To facilitate the cleaning of the zones 14, the cleaning device 10 comprises a first cleaning circuit 20 which makes it possible to spray a first liquid onto the windshield 18. The first cleaning circuit 20 notably comprises a reservoir 22 which allows the storage of the first liquid. It comprises, in an upper wall 24, a filling orifice closed by a plug 26 which allows the user of the vehicle to fill it with the first liquid.
Le premier liquide est généralement constitué d'eau à laquelle est ajoutée petite quantité d'un liquide détergent de façon à faciliter de nettoyage du pare-brise 18.The first liquid generally consists of water to which a small amount of detergent liquid is added so as to facilitate cleaning of the windshield 18.
Un orifice de vidange 28 est réalisé dans une paroi inférieure 30 du réservoir 22, et il est en communication avec une première canalisation 32 qui permet d'alimenter des premiers dispositifs de projection 34, ici portés par les essuie-glaces 12.A drain orifice 28 is produced in a lower wall 30 of the reservoir 22, and it is in communication with a first pipe 32 which makes it possible to supply the first projection devices 34, here carried by the wipers 12.
Pour assurer la projection du premier liquide sur le pare- brise 18 d'un dispositif de mise sous pression 36, tel qu'une pompe, est interposée dans la canalisation 32.To ensure the projection of the first liquid on the windshield 18 of a pressurizing device 36, such as a pump, is interposed in the pipe 32.
Ainsi, le premier liquide mis sous pression est pulvérisé sur le pare-brise par les premiers dispositifs de projection 34.Thus, the first pressurized liquid is sprayed onto the windshield by the first projection devices 34.
Les essuie-glaces 12 permettent d'essuyer le pare-brise 18 lorsqu'il est recouvert de liquides, tels que de l'eau de pluie. Lorsque d'autres éléments tels que des dépôts ou des saletés sont déposés à sa surface, la pulvérisation du premier liquide sur le pare-brise 18 permet de les mettre en suspension puis, de façon similaire aux liquides, puis les lames d'essuyage des essuie-glaces 12 les évacuent, hors de la zone de nettoyage 14. Les essuie-glaces 12 permettent aussi d'enlever de la surface du pare-brise 1 8 des flocons de neige.The wipers 12 make it possible to wipe the windshield 18 when it is covered with liquids, such as rain water. When other elements such as deposits or dirt are deposited on its surface, the spraying of the first liquid on the windshield 18 makes it possible to suspend them then, similarly to the liquids, then the wiping blades of the wipers 12 evacuate them, out of the cleaning zone 14. The wipers 12 also make it possible to remove snowflakes from the surface of the windshield 18.
Cependant, lorsque les saletés adhèrent à la surface extérieure du pare-brise 18, les essuie-glaces 12 associés au premier liquide ne permettent pas de la nettoyer. On dit alors que les saletés sont tenaces.However, when the dirt adheres to the outer surface of the windshield 18, the wipers 12 associated with the first liquid do not allow it to be cleaned. We then say that the dirt is stubborn.
Lorsqu'une couche de givre ou de glace est déposée sur le pare-brise 18, la projection du premier liquide ne permet pas aux essuie-glaces 12 de la balayer. En effet, même les dispositifs spécifiques, comme par exemple des dispositifs de raclage, sont parfois inefficaces lorsque la couche de givre ou de glace est trop importante.When a layer of frost or ice is deposited on the windshield 18, the projection of the first liquid does not allow the wipers 12 to sweep it. Indeed, even specific devices, such as for example scraping devices, are sometimes ineffective when the layer of frost or ice is too large.
Les saletés tenaces, ainsi que le givre ou la glace, qui sont déposées sur la surface extérieure du pare-brise 18, notamment sur les zones 14, gênent la visibilité du conducteur du véhicule. Les conditions de sécurité ne sont alors pas optimales.Stubborn dirt, as well as frost or ice, which are deposited on the outer surface of the windshield 18, in particular on the zones 14, impede the visibility of the driver of the vehicle. The security conditions are therefore not optimal.
Pour résoudre ce problème, l'invention propose de projeter sur le pare-brise 18 au moins un deuxième liquide de nature et/ou de composition et/ou de caractéristiques physiques différentes de celles du premier liquide.To solve this problem, the invention proposes to spray on the windshield 18 at least one second liquid of a nature and / or composition and / or physical characteristics different from those of the first liquid.
Conformément à la figure 1 , le dispositif de nettoyage 10 comporte à cet effet un deuxième 50 et un troisième 52 circuit de nettoyage qui permettent de projeter un deuxième et un troisième liquides respectivement sur le pare-brise 18. I ls ont une nature et/ou une composition et/ou des caractéristiques physiques différentes de celles du premier liquide, et aussi différentes entre elles.In accordance with FIG. 1, the cleaning device 10 comprises for this purpose a second 50 and a third 52 cleaning circuit which make it possible to spray a second and a third liquid respectively on the windshield 18. They have a nature and / or a composition and / or physical characteristics different from those of the first liquid, and also different from each other.
Par exemple, le deuxième liquide a des propriétés fortement détergentes qui peuvent aussi être dégraissantes et qui permettent de séparer les salissures, mêmes tenaces, de la surface extérieure du pare-brise 18.For example, the second liquid has strongly detergent properties which can also be degreasing and which make it possible to separate dirt, even stubborn, from the outer surface of the windshield 18.
Le troisième liquide peut alors présenter des propriétés dégivrantes, c'est-à-dire qu'il a un point de fusion bas qui permet de faire fondre le givre et/ou la glace formé(s) sur la surface extérieure du pare-brise 18.The third liquid can then have de-icing properties, that is to say that it has a low melting point which makes it possible to melt the frost and / or the ice formed on the outer surface of the windshield. 18.
Le deuxième liquide consiste en une solution détergente qui est stockée dans un deuxième réservoir 54. Le troisième liquide est une solution dégivrante qui est stockée dans un troisième réservoir 56. Conformément au premier circuit 20, chacun des deuxièmeThe second liquid consists of a detergent solution which is stored in a second tank 54. The third liquid is a deicing solution which is stored in a third tank 56. According to the first circuit 20, each of the second
50 et troisième 52 circuits comportent des deuxième et troisième moyens de mise sous pression 58 et 60, ainsi qu'une deuxième et une troisième canalisations 62 et 64. Ici, les trois circuits 20, 50 et 52 sont reliés par une canalisation unique 66 aux dispositifs de projection 34.50 and third 52 circuits include second and third pressurizing means 58 and 60, as well as a second and third lines 62 and 64. Here, the three circuits 20, 50 and 52 are connected by a single pipe 66 to the projection devices 34.
Les moyens de mise sous pression 36, 58 et 60 des premier, deuxième et troisième liqu ides sont activés par des moyens de commande qui peuvent être manipulés par l'utilisateur du véhicule, ou par traitement d'informations fou rnies par des capteurs tels que des capteurs de détection des conditions de la formation de givre à la surface extérieure du pare-brise 18, et/ou de détection de la présence de givre sur cette surface extérieure, et/ou de détection de la présence de saletés tenaces sur cette surface extérieure, en fonction des conditions climatiques extérieures au véhicule, telles que la température, le point de rosée et la présence ou non de pluie, ou de la présence de givre et/ou de salissures sur la surface extérieure du pare-brise 18 à nettoyer.The pressurizing means 36, 58 and 60 of the first, second and third liquids are activated by control means which can be manipulated by the user of the vehicle, or by processing of information supplied by sensors such as sensors for detecting the conditions of frost formation on the outer surface of the windshield 18, and / or for detecting the presence of frost on this outer surface, and / or for detecting the presence of stubborn dirt on this surface exterior, depending on the climatic conditions exterior to the vehicle, such as the temperature, the dew point and the presence or not of rain, or the presence of frost and / or dirt on the exterior surface of the windshield 18 to be cleaned .
La projection des premier, deuxième et troisième liquides peut être concomitante, ou non, selon les souhaits de l'utilisateur ou selon les informations fournies par les capteurs.The projection of the first, second and third liquids can be concomitant, or not, according to the wishes of the user or according to the information provided by the sensors.
Un tel dispositif de nettoyage 10 permet par exemple lorsque des saletés tenaces sont "accrochées" sur la surface extérieure du pare-brise 18, de projeter le second liquide possédant des propriétés détergentes de façon à les décoller.Such a cleaning device 10 allows for example when stubborn dirt is "hung" on the outer surface of the windshield 18, to spray the second liquid having detergent properties so as to peel them off.
Avantageusement, lors de la projection du (des) deuxième et/ou troisième liquide(s), les bras d'essuie-glaces sont entraînés en balayage à une vitesse inférieure à la plus petite des vitesses d'essuyage. Cette vitesse réduite permet d'étaler le (les) deuxième et/ou troisième liqu ide(s).Advantageously, during the projection of the second and / or third liquid (s), the wiper arms are driven in sweeping at a speed lower than the lowest of the wiping speeds. This reduced speed makes it possible to spread the second and / or third liquid (s).
La vitesse de balayage étant faible, la durée de contact entre le (les) deuxième et/ou troisième liqu ide(s) et les saletés tenaces et/ou le givre et/ou la glace est prolongée, ce qui favorise l'action détergente du deuxième liquide et/ou augmente l'efficacité du troisième liquide.As the scanning speed is low, the duration of contact between the second and / or third liquid (s) and stubborn dirt and / or frost and / or ice is extended, which promotes the detergent action of the second liquid and / or increases the effectiveness of the third liquid.
Selon une variante, on peut utiliser, par exemple, un premier et un deuxième liquides qui ne possèdent pas de propriétés détergentes. Lorsque ces deux liquides sont mélangés, le liqu ide obtenu possède des propriétés détergentes. Ainsi, le liquide qui est constitué du mélange du premier et du deuxième liquide permet de faciliter le nettoyage de la surface extérieure du pare-brise 18.Alternatively, one can use, for example, a first and a second liquid which does not have detergent properties. When these two liquids are mixed, the liquid obtained has detergent properties. Thus, the liquid which consists of the mixture of the first and of the second liquid makes it possible to facilitate the cleaning of the external surface of the windshield 18.
Selon une autre variante, de façon similaire, le premier et le troisième liquides peuvent ne pas présenter des propriétés dégivrantes. Lorsqu'ils sont mélangés, le liquide obtenu présente des propriétés dégivrantes. De plus, lors du mélange du premier et du deuxième liquide, il peut se produire une réaction exothermique qui permet de chauffer le mélange et ainsi d'augmenter sa température afin d'accroître son activité détergente, et de faciliter la fonte du givre présent sur le pare-brise 18. La figure 2 représente un deuxième exemple de réalisation du dispositif de nettoyage 10 du pare-brise 18.According to another variant, similarly, the first and third liquids may not have deicing properties. When mixed, the liquid obtained has de-icing properties. In addition, during the mixing of the first and the second liquid, an exothermic reaction can occur which makes it possible to heat the mixture and thus to increase its temperature in order to increase its detergent activity, and to facilitate the melting of the frost present on the windshield 18. FIG. 2 shows a second embodiment of the cleaning device 10 for the windshield 18.
Le dispositif de nettoyage 10 comporte le premier circuit 20 dont le premier liquide, qui circule dans la première canalisation 32, est pulvérisé sur le pare-brise 18 par les dispositifs de projection 34 fixés sur les bras 12 mobiles en rotation alternée. Le troisième circuit 52 est en parallèle du premier circuit 20. Il projette sur le pare-brise 18, par un second dispositif de projection 70 qui est par exemple une buse de projection portée par le capot avant du véhicule, le troisième liquide, qui présente des propriétés détergentes.The cleaning device 10 comprises the first circuit 20, the first liquid of which, which circulates in the first pipe 32, is sprayed onto the windshield 18 by the projection devices 34 fixed on the arms 12 movable in alternating rotation. The third circuit 52 is in parallel with the first circuit 20. It projects onto the windshield 18, by a second projection device 70 which is for example a projection nozzle carried by the front cover of the vehicle, the third liquid, which has detergent properties.
La buse 70 projette le troisième liquide sur une zone 71 de la surface extérieure du pare-brise 1 8. La zone 71 est ici plus petite que les zones 14 à nettoyer. Cependant, le réglage de la buse 70 permet d'adapter la position et les dimensions de la zone 71 en fonction de la zone du pare-brise 18 qui nécessite un dégivrage important.The nozzle 70 projects the third liquid onto an area 71 of the outer surface of the windshield 1 8. The area 71 is here smaller than the areas 14 to be cleaned. However, the adjustment of the nozzle 70 makes it possible to adapt the position and the dimensions of the area 71 as a function of the area of the windshield 18 which requires significant defrosting.
La buse de projection 70 est avantageusement située dans une position centrale par rapport aux zones 14 du pare-brise 18 à nettoyer. La buse 70 de projection peut être orientable par rapport à la zone 71 de la surface extérieu re du pare-brise 18 en fonction d'au moins un paramètre du véhicule tel que le flux aérodynamique ou la vitesse du véhicule. La commande de l'orientation de la buse 70 de projection peut aussi être obtenue par une commande manuelle actionnée par le conducteur du véhicule.The spray nozzle 70 is advantageously located in a central position relative to the zones 14 of the windshield 18 to be cleaned. The projection nozzle 70 can be orientable relative to the area 71 of the outer surface of the windshield 18 as a function of at least one parameter of the vehicle such as the aerodynamic flow or the speed of the vehicle. The control of the orientation of the projection nozzle 70 can also be obtained by a manual control actuated by the driver of the vehicle.
Le premier circuit 20 comporte deux conduits 72 et 74 qui sont issus du réservoir 22 et qui se raccordent à la première canalisation 32.The first circuit 20 comprises two conduits 72 and 74 which come from the reservoir 22 and which connect to the first pipe 32.
Selon une variante, le deuxième conduit 74 est raccordé à un réservoir non représenté, comportant un liquide de nature et/ou de composition et/ou de caractéristiques physiques différentes de celles du premier liquide. Le premier conduit 72 comporte le dispositif de mise sous pression 36 qui élève la pression du premier liquide à une première pression ainsi qu'une première valve 73 du type clapet anti-retour.According to a variant, the second conduit 74 is connected to a reservoir, not shown, comprising a liquid of a nature and / or of composition and / or of physical characteristics different from those of the first liquid. The first conduit 72 comprises the pressurizing device 36 which raises the pressure of the first liquid at a first pressure as well as a first valve 73 of the non-return valve type.
Le deuxième conduit 74 comporte successivement, d'amont en aval selon l'écoulement du premier liquide, un réservoir intermédiaire de chauffage 76, un dispositif de mise sous pression 78, un récipient de détergent 80 et une première valve 82 du type clapet anti-retour.The second conduit 74 successively comprises, from upstream to downstream according to the flow of the first liquid, an intermediate heating tank 76, a pressurizing device 78, a detergent container 80 and a first valve 82 of the check valve type. return.
Selon une variante, le deuxième conduit 74 est raccordé à un réservoir non représenté, comportant un liquide de nature et/ou de composition et/ou de caractéristiques physiques différentes de celles du premier liquide. Ainsi le liquide qui circule dans le deuxième conduit 74 est un mélange du premier liquide avec un autre liquide. Le premier liquide est admis par gravité dans le réservoir intermédiaire de chauffage 76 qui permet d'augmenter sa température afin d'accroître son activité détergente, et éventuellement de faciliter la fonte du givre présent su r le pare-brise 18. Le premier liquide chauffé est alors mis sous pression par le dispositif 78, qui est de préférence une pompe, qui élève la pression du premier liquide chauffé à une deuxième pression supérieure à la première pression du premier liquide. Dans la suite de la description une telle pompe sera appelée pompe haute pression 76, tandis que la pompe constituant les moyens de mise sous pression 36 sera appelée pompe basse pression 36.According to a variant, the second conduit 74 is connected to a reservoir, not shown, comprising a liquid of a nature and / or of composition and / or of physical characteristics different from those of the first liquid. Thus the liquid which circulates in the second conduit 74 is a mixture of the first liquid with another liquid. The first liquid is admitted by gravity into the intermediate heating tank 76 which makes it possible to increase its temperature in order to increase its detergent activity, and possibly to facilitate the melting of the frost present on the windshield 18. The first heated liquid is then pressurized by the device 78, which is preferably a pump, which raises the pressure of the first heated liquid to a second pressure greater than the first pressure of the first liquid. In the following description, such a pump will be called a high pressure pump 76, while the pump constituting the pressurizing means 36 will be called a low pressure pump 36.
Le récipient de détergent 80 est constitué d'une chambre dans laquelle est disposée une substance détergente qui peut être un élément solide tel qu'une pastille. Ainsi, lorsque le premier liquide chauffé traverse la chambre, il se charge en substance détergente. Lorsque la substance détergente est une pastille, elle se dissout progressivement au contact du premier liquide chauffé. Le premier liquide qui sort du récipient de détergent 80 présente une forte activité détergente.The detergent container 80 consists of a chamber in which is disposed a detergent substance which can be a solid element such as a tablet. Thus, when the first heated liquid passes through the chamber, it is loaded with detergent substance. When the detergent substance is a tablet, it gradually dissolves on contact with the first heated liquid. The first liquid which leaves the detergent container 80 has a strong detergent activity.
La troisième canalisation 64 comporte une bifurcation 84 entre la pompe 60, avantageusement haute pression, et la buse 70. Ainsi, un troisième conduit 86 relie la bifurcation 84 à un point de raccordement 88 de la première canalisation 32.The third pipe 64 comprises a bifurcation 84 between the pump 60, advantageously high pressure, and the nozzle 70. Thus, a third conduit 86 connects the bifurcation 84 to a connection point 88 of the first pipe 32.
Lorsque la pompe 60 est activée, des vannes 90 et 92 pilotées peuvent être ouvertes pour permettre la circulation du troisième liquide dans le troisième conduit 86 et la troisième canalisation 64. L'ouverture de la vanne 90 interposée dans le troisième conduit 86 permet de mélanger le troisième liquide dégivrant au premier liquide et de pulvériser le mélange ainsi obtenu par les buses 34 des essuie-glaces 12.When the pump 60 is activated, controlled valves 90 and 92 can be opened to allow the circulation of the third liquid in the third conduit 86 and the third pipe 64. The opening of the valve 90 interposed in the third conduit 86 makes it possible to mix the third liquid defrosting the first liquid and spraying the mixture thus obtained by the nozzles 34 of the wipers 12.
L'ouverture de la vanne 92 interposée dans la troisième canalisation 64 permet de pulvériser le troisième liquide "pur" su r la zone 71 du pare-brise 18.The opening of the valve 92 interposed in the third pipe 64 makes it possible to spray the third "pure" liquid on the zone 71 of the windshield 18.
Un système de commande, non représenté, permet d'activer ou non les moyens de chauffage 76, les pompes 36, 60 et 78, ainsi que les moteurs d'entraînement en balayage des essuie-glaces 12, et les vannes 90 et 92 selon l'état de salissure et/ou de givrage du pare-brise 18, notamment de la zone à nettoyer 14.A control system, not shown, makes it possible to activate or not the heating means 76, the pumps 36, 60 and 78, as well as the drive motors in scanning of the windscreen wipers 12, and the valves 90 and 92 according to the state of soiling and / or icing of the windshield 18, in particular of the zone to be cleaned 14.
Ainsi, lorsque des salissures sont simplement déposées sur le pare-brise 1 8, seule la pompe 36 et les moteurs d'entraînement en balayage des essuie-glaces 12 sont activés pour nettoyer la zone 14.Thus, when dirt is simply deposited on the windshield 1 8, only the pump 36 and the wiper drive motors 12 are activated to clean the zone 14.
Des clapets anti-retour 82 et 96 interposés dans la première et le troisième conduit 72 et 86 respectivement permettent d'empêcher la circulation du premier fluide dans les conduits 72 et 86.Non-return valves 82 and 96 interposed in the first and the third conduit 72 and 86 respectively make it possible to prevent the circulation of the first fluid in the conduits 72 and 86.
Lorsque des salissures tenaces sont accrochées sur la zone 14 du pare-brise 18, il est avantageux d'activer concomitamment les moyens de chauffage 76, la pompe haute pression 78, ainsi que les moteurs d'entraînement en balayage des essuie-glaces 12. Le premier liquide chauffé et présentant des propriétés détergentes est alors pulvérisé sur le pare-brise 18. La haute pression ainsi que la température du premier liquide permettent d'améliorer son effet détergent. Lorsque du givre et/ou de la glace est formée sur le pare- brise 18, plusieurs actions sont possibles.When stubborn soiling is attached to the zone 14 of the windshield 18, it is advantageous to activate the heating means 76, the high-pressure pump 78 as well as the wiper drive motors 12. The first heated liquid having detergent properties is then sprayed onto the windshield 18. The high pressure and the temperature of the first liquid make it possible to improve its detergent effect. When frost and / or ice is formed on the windshield 18, several actions are possible.
L'une d'entre elles consiste à activer la pompe haute pression 60 et à ouvrir la vanne 90 .en plus des éléments activés dans le cas précédent. Le troisième liquide se mélange alors au premier liquide chauffé et le mélange ainsi obtenu est pulvérisé à haute pression sur le pare-brise 18 par les buses 34 des essuie- glaces 12. L'augmentation de la température du troisième liquide due au premier liquide chauffé, permet de favoriser la fonte du givre et/ou de la glace. Une autre action consiste à activer la pompe 60 et à ouvrir la vanne 92 antérieurement ou concomitamment aux commandes effectuées selon l'action précédente. Ainsi, le troisième liquide pur pulvérisé sur la zone 71 à dégivrer du pare-brise 18 augmente encore la fonte du givre et/ou de la glace. Selon ces différents exemples, il est préférable que la vitesse de rotation alternée des essuie-glaces 12 soit inférieure à la plus petite des vitesses d'essuyage, de façon à améliorer encore l'activité détergente du liquide chauffé et/ou le pouvoir dégivrant du troisième liquide.One of them consists in activating the high pressure pump 60 and in opening the valve 90. In addition to the elements activated in the previous case. The third liquid then mixes with the first heated liquid and the mixture thus obtained is sprayed at high pressure on the windshield 18 by the nozzles 34 of the wipers 12. The increase in the temperature of the third liquid due to the first heated liquid , promotes the melting of frost and / or ice. Another action consists in activating the pump 60 and in opening the valve 92 previously or concomitantly with the commands carried out according to the preceding action. Thus, the third pure liquid sprayed on the area 71 to be defrosted from the windshield 18 further increases the melting of the frost and / or ice. According to these different examples, it is preferable that the alternating speed of rotation of the wipers 12 is less than the smallest of the wiping speeds, so as to further improve the detergent activity of the heated liquid and / or the deicing power of the third liquid.
Un troisième exemple de réalisation du dispositif de nettoyage 10 du pare-brise 18 est représenté à la figure 3.A third embodiment of the cleaning device 10 for the windshield 18 is shown in FIG. 3.
Le dispositif de nettoyage 10 comporte le premier circuit 20 dont le premier liquide qui circule dans la première canalisation 32 est pulvérisé sur le pare-brise 18 par un troisième dispositif de projection 100 qui est ici constitué par des buses portées par le capot avant du véhicule. Le premier liquide est alors projeté sur la zone 14 à nettoyer du pare-brise 18 qui est délimitée sensiblement par un rectangle. Le second dispositif de projection 70 permet ici de projeter sur le pare-brise 18 le deuxième et le troisième liquide circulant dans les deuxième et troisième canalisations 62 et 64 qui sont ici agencées en parallèle.The cleaning device 10 comprises the first circuit 20, the first liquid of which circulates in the first pipe 32 is sprayed onto the windshield 18 by a third projection device 100 which here consists of nozzles carried by the front cover of the vehicle . The first liquid is then sprayed onto the zone 14 to be cleaned from the windshield 18 which is delimited substantially by a rectangle. The second projection device 70 here makes it possible to project onto the windshield 18 the second and the third liquid circulating in the second and third pipes 62 and 64 which are here arranged in parallel.
Le second circuit 50 permet de projeter sur le pare-brise 18 un produit chaud ayant des propriétés détergentes.The second circuit 50 makes it possible to project onto the windshield 18 a hot product having detergent properties.
Le chauffage du deuxième liquide est obtenu par son mélange et sa réaction exothermique avec un produit réactif stocké dans un quatrième réservoir 102.The heating of the second liquid is obtained by its mixture and its exothermic reaction with a reactive product stored in a fourth tank 102.
Le produit réactif peut être un élément solide, tel qu'une poudre ou des cristaux, qui se dissout au contact du deuxième liquide.The reactive product can be a solid element, such as a powder or crystals, which dissolves on contact with the second liquid.
Selon une variante, le produit réactif est un quatrième liquide.According to a variant, the reactive product is a fourth liquid.
Pour obtenir la température désirée du deuxième liquide, il est nécessaire de maîtriser la réaction exothermique. Pour ce faire, le produit réactif est dosé.To obtain the desired temperature of the second liquid, it is necessary to control the exothermic reaction. To do this, the reactive product is dosed.
Une chambre de mélange 104 est insérée dans la deuxième canalisation 62 et un quatrième conduit 106 la relie au quatrième réservoir 102. Deux vannes 108 et 1 10 sont situées dans le quatrième conduit 106 en amont et en aval respectivement d'une chambre de dosage 1 12.A mixing chamber 104 is inserted in the second pipe 62 and a fourth conduit 106 connects it to the fourth tank 102. Two valves 108 and 110 are located in the fourth conduit 106 upstream and downstream respectively of a metering chamber 1 12.
Le dispositif de nettoyage 10 peut aussi comporter un capteur qui est fixé sur le pare-brise 18 et qui fournit des informations, notamment des informations représentatives de l'état de propreté ou de givrage de sa surface extérieure. Les informations sont alors transmises à une unité électronique de commande 1 14 qui permet d'activer notamment les pompes 36, 58 et 60, les vannes 108 et 1 1 0 ainsi que le moteur d'entraînement en rotation alternée essuie-glaces (non représentés).The cleaning device 10 can also include a sensor which is fixed to the windshield 18 and which provides information, in particular information representative of the state of cleanliness or icing of its external surface. The information is then transmitted to an electronic control unit 1 14 which makes it possible in particular to activate the pumps 36, 58 and 60, the valves 108 and 1 1 0 as well as the drive motor for alternating rotation of the wipers (not shown). ).
Lorsque des salissures tenaces sont détectées et que le premier liquide n'est pas suffisant pour les nettoyer, l'unité électronique de commande 1 14 permet le dosage du produit réactif.When stubborn soiling is detected and the first liquid is not sufficient to clean it, the electronic control unit 114 allows the dosing of the reactive product.
Pour ce faire, l'unité électronique de commande 1 14 provoque la fermeture de la vanne aval 1 10 et l'ouverture de la vanne amont 108 de façon à remplir de produit réactif la chambre de dosage 1 12. Lorsque cette opération est terminée, la vanne amont 108 est fermée et la vanne aval 1 10 est ouverte concomitamment à la mise en marche de la pompe haute pression 58.To do this, the electronic control unit 1 14 causes the downstream valve 1 10 to close and the upstream valve 108 to open so as to fill the metering chamber 1 12 with reactive product. When this operation is complete, the upstream valve 108 is closed and the downstream valve 110 is opened at the same time as the high pressure pump 58 is started.
Lorsque le produit réactif est un liquide, il peut être dosé directement dans la chambre de dosage 1 12 par une pompe, non représentée.When the reactive product is a liquid, it can be metered directly into the metering chamber 1 12 by a pump, not shown.
Le deuxième liquide se mélange alors avec le produit réactif dans la chambre de mélange 104. Il se produit alors une réaction exothermique qui provoque une augmentation de la température du deuxième liquide. Le deuxième liquide chauffé présente u ne forte activité détergente qui permet, lorsqu'il est projeté sur la su rface extérieure du pare-brise 18 de décoller les salissures mêmes tenaces. Le deuxième liquide chauffé peut aussi permettre d'augmenter l'efficacité du troisième liquide qui présente des propriétés dégivrantes. En effet, leur mélange est un liquide présentant les deux propriétés qui permettent la fonte du givre et/ou de la glace, c'est-à-dire un liquide chaud et dégivrant.The second liquid then mixes with the reactive product in the mixing chamber 104. An exothermic reaction then takes place which causes an increase in the temperature of the second liquid. The second heated liquid has a strong detergent activity which, when sprayed onto the outer surface of the windshield 18, removes the same stubborn dirt. The second heated liquid can also make it possible to increase the efficiency of the third liquid which has de-icing properties. Indeed, their mixture is a liquid having the two properties which allow the melting of frost and / or ice, that is to say a hot and defrosting liquid.
Selon une variante, représentée à la figure 4, c'est le liquide du troisième circuit 52 qui est chauffé. Ici, le chauffage est obtenu par le mélange et la réaction exothermique du troisième liquide avec un second produit réactif stocké dans un cinquième réservoir 120.According to a variant, represented in FIG. 4, it is the liquid of the third circuit 52 which is heated. Here, heating is obtained by mixing and exothermic reaction of the third liquid with a second reactive product stored in a fifth tank 120.
Le mélange et la réaction exothermique sont réalisés directement sur le pare-brise 18 du véhicule.The mixing and the exothermic reaction are carried out directly on the windshield 18 of the vehicle.
Le troisième liquide et le second produit réactif sont projetés sur le pare-brise par des buses 122 et 124 respecti- vement distinctes.The third liquid and the second reactive product are sprayed onto the windshield by respective separate nozzles 122 and 124.
Ainsi le liquide chauffé permet d'une part d'augmenter l'efficacité du troisième liquide pour faire fondre le givre et/ou la glace formée sur le pare-brise 18, mais aussi d'accroître l'activité détergente des premier et/ou second liqu ides projetés par les buses 34.Thus the heated liquid makes it possible on the one hand to increase the efficiency of the third liquid for melting the frost and / or the ice formed on the windshield 18, but also to increase the detergent activity of the first and / or second liquids projected by the nozzles 34.
Un quatrième exemple de réalisation du dispositif de nettoyage 10 du pare-brise 18 est représenté à la figure 5.A fourth embodiment of the cleaning device 10 for the windshield 18 is shown in FIG. 5.
Le dispositif de nettoyage 10 comporte le premier circuit 20 dans la première canalisation 32 dans laquelle est interposée une bifurcation pilotée 130 qui permet la répartition entre un point de dérivation 131 du tronçon aval de la première canalisation 32 et un cinquième conduit 132.The cleaning device 10 comprises the first circuit 20 in the first pipe 32 in which is interposed a piloted bifurcation 130 which allows the distribution between a branch point 131 of the downstream section of the first pipe 32 and a fifth conduit 132.
La deuxième canalisation 62 comporte un point de raccordement 134 avec le cinquième conduit 132 qui est situé entre le récipient de détergent 80 et la chambre de mélange 104 permettant une réaction exothermique.The second pipe 62 has a connection point 134 with the fifth pipe 132 which is located between the detergent container 80 and the mixing chamber 104 allowing an exothermic reaction.
Un tel dispositif de nettoyage 10 peut alors fonctionner selon trois modes principaux. L'unité électronique de commande (non représentée), pilote notamment des valves ou clapets 136, 1 38, 140 et 142, les pompes 36, 78, la bifurcation pilotée 130 pour le cheminement du premier liquide dans le dispositif de nettoyage 10. Le premier mode appelé mode "classique" permet la projection (à basse pression par la pompe 36 et le premier circuit 20) sur le pare-brise 18 du premier liquide stocké dans le réservoir 22. La bifurcation pilotée 130 autorise le passage du premier liquide uniquement dans la première canalisation 32. Le premier mode est activé lorsque des salissures sont présentes sur la surface extérieure du pare-brise 18. Un clapet 136 du type anti-retour permet d'éviter que le premier liquide ne remonte dans la deuxième canalisation 62.Such a cleaning device 10 can then operate in three main modes. The electronic control unit (not shown), controls in particular valves or flaps 136, 138, 140 and 142, the pumps 36, 78, the controlled bifurcation 130 for the routing of the first liquid in the cleaning device 10. The first mode called "classic" mode allows the projection (at low pressure by the pump 36 and the first circuit 20) on the windshield 18 of the first liquid stored in the reservoir 22. The pilot bifurcation 130 allows the passage of the first liquid only in the first pipe 32. The first mode is activated when dirt is present on the outer surface of the windshield 18. A valve 136 of the non-return type makes it possible to prevent the first liquid from going back into the second pipe 62.
Le deuxième mode provoque le dégivrage du pare-brise 18. Il consiste à dériver au moins partiellement le débit du premier liqu ide dans le cinquième conduit 132, de façon à alimenter la chambre de mélange 104. Une quantité prédéterminée, par le dosage dans la chambre de dosage 1 12, du produit réactif stocké dans le quatrième réservoir 102 est alors introduite dans la chambre de mélange 104 de façon à provoquer une réaction exothermique pour élever la température du premier liquide. Le premier liquide chauffé est alors projeté sur le pare- brise 18 par les buses 34 des essuie-glaces 12.The second mode causes the windshield 18 to defrost. It consists in at least partially diverting the flow rate of the first liquid in the fifth conduit 132, so as to supply the mixing chamber 104. A predetermined quantity, by dosing in the metering chamber 1 12, of the reactive product stored in the fourth tank 102 is then introduced into the mixing chamber 104 so as to cause an exothermic reaction to raise the temperature of the first liquid. The first heated liquid is then projected onto the windshield 18 by the nozzles 34 of the wipers 12.
Le produit réactif peut, en plus de provoquer la réaction exothermique, modifier les propriétés du premier liquide, par exemple en diminuant son point de fusion.The reactive product can, in addition to causing the exothermic reaction, modify the properties of the first liquid, for example by reducing its melting point.
Le troisième mode permet le nettoyage des salissures tenaces fixées sur la surface extérieure du pare-brise 18. La pompe haute pression 78 est alors activée de façon à provoquer le passage du premier liqu ide à travers le récipient de détergent 80, pour lui conférer les propriétés détergentes du deuxième liquide. Lorsqu'il traverse la chambre de mélange 104 une quantité prédéterminée du produit réactif lui est avantageusement mélangée de façon à augmenter sa température, et par conséquent l'efficacité de ses propriétés détergentes.The third mode allows the cleaning of stubborn dirt fixed on the outer surface of the windshield 18. The high pressure pump 78 is then activated so as to cause the first liquid to pass through the detergent container 80, to give it the detergent properties of the second liquid. When it passes through the mixing chamber 104, a predetermined quantity of the reactive product is advantageously obtained for it. mixed so as to increase its temperature, and therefore the effectiveness of its detergent properties.
Le produit réactif peut, en plus de provoquer la réaction exothermique, modifier les propriétés du deuxième liquide, par exemple en augmentant son pouvoir détergent.The reactive product can, in addition to causing the exothermic reaction, modify the properties of the second liquid, for example by increasing its detergent power.
Pour le deuxième et le troisième modes de fonctionnement, il est avantageux que la rotation des essuie-glaces 12 se fasse à une vitesse inférieure à la plus petite des vitesses d'essuyage, de façon à étaler de façon optimale les liquides et augmenter leur efficacité.For the second and third operating modes, it is advantageous for the windscreen wipers 12 to rotate at a speed less than the lowest of the wiping speeds, so as to optimally spread the liquids and increase their efficiency .
Un tel dispositif de nettoyage 10 permet l'utilisation d'un liquide commun à toutes les applications que ce soit un simple nettoyage du pare-brise 18, un nettoyage des salissures tenaces ou la suppression du givre et/ou de la glace. Ainsi, on utilisera de préférence un liquide qui permet le nettoyage du pare-brise 18 pour le mode "classique"Such a cleaning device 10 allows the use of a liquid common to all applications, whether it is a simple cleaning of the windshield 18, a cleaning of stubborn dirt or the removal of frost and / or ice. Thus, preferably use a liquid which allows the cleaning of the windshield 18 for the "classic" mode
La description précédente n'est pas limitative, en effet les différents exemples de réalisation du dispositif de nettoyage 10 peuvent être combinés entre eux. The preceding description is not limiting, in fact the various embodiments of the cleaning device 10 can be combined with one another.

Claims

REVEN DICATIONS REVEN DICATIONS
1 . Dispositif de nettoyage (10) d'une vitre (18), notamment d'une vitre (18) d'un véhicule automobile recouverte au moins partiellement de givre et/ou de salissures, du type qui comporte au moins un mécanisme d'essuie-glace, un premier circuit de nettoyage (20) pour projeter un premier liquide sur la vitre (18), et qui comprend un réservoir (22) du premier liquide, des premiers moyens (36) de mise sous pression du premier liquide et au moins un premier dispositif (34) de projection du premier liquide sur la vitre (18), et du type dans lequel les premiers réservoir (22), moyens de mise sous pression (36) et dispositif de projection (34) sont reliés entre eux, caractérisé en ce qu'il comporte au moins un deuxième circuit (50) de nettoyage pour projeter sur la vitre (18) un deuxième liquide de natu re et/ou de composition et/ou de caractéristiques physiques différentes de celles du premier liquide.1. Device for cleaning (10) a window (18), in particular a window (18) of a motor vehicle at least partially covered with frost and / or dirt, of the type which comprises at least one wiping mechanism -window, a first cleaning circuit (20) for projecting a first liquid onto the window (18), and which comprises a reservoir (22) of the first liquid, first means (36) for pressurizing the first liquid and at at least a first device (34) for projecting the first liquid onto the window (18), and of the type in which the first reservoir (22), pressurizing means (36) and projection device (34) are interconnected , characterized in that it comprises at least a second cleaning circuit (50) for projecting onto the window (18) a second liquid of a nature and / or of composition and / or of physical characteristics different from those of the first liquid.
2. Dispositif de nettoyage (1 0) selon la revendication précédente, caractérisé en ce qu'il comporte des moyens de chauffage du deuxième liquide.2. Cleaning device (1 0) according to the preceding claim, characterized in that it comprises means for heating the second liquid.
3. Dispositif de nettoyage (10) selon la revendication précédente, caractérisé en ce que les moyens de chauffage du deuxième liquide comportent une résistance électrique de chauffage. 3. Cleaning device (10) according to the preceding claim, characterized in that the means for heating the second liquid comprise an electrical heating resistance.
4. Dispositif de nettoyage (10) selon l'une des revendications 2 ou 3, caractérisé en ce que les moyens de chauffage consistent en une réaction exothermique, par le mélange du deuxième liquide avec au moins un produit réactif.4. Cleaning device (10) according to one of claims 2 or 3, characterized in that the heating means consist of an exothermic reaction, by mixing the second liquid with at least one reactive product.
5. Dispositif de nettoyage (10) selon la revendication précédente, caractérisé en ce que le produit réactif est un quatrième liquide.5. Cleaning device (10) according to the preceding claim, characterized in that the reactive product is a fourth liquid.
6. Dispositif de nettoyage (10) selon la revendication précédente, caractérisé en ce que le mélange du deuxième et du quatrième liquide est réalisé sur la vitre (18) à nettoyer. 6. Cleaning device (10) according to the preceding claim, characterized in that the mixing of the second and the fourth liquid is carried out on the window (18) to be cleaned.
7. Dispositif de nettoyage (10) selon la revendication 4, caractérisé en ce que le produit réactif est un premier élément solide tel qu'une poudre ou des cristaux qui se dissout au contact du deuxième liquide. 7. Cleaning device (10) according to claim 4, characterized in that the reactive product is a first solid element such as a powder or crystals which dissolves on contact with the second liquid.
8. Dispositif de nettoyage (10) selon l'une des revendications 4, 5 ou 7, caractérisé en ce que le mélange du deuxième liquide et du produit réactif est réalisé dans le deuxième circuit (50) de nettoyage.8. Cleaning device (10) according to one of claims 4, 5 or 7, characterized in that the mixing of the second liquid and the reactive product is carried out in the second cleaning circuit (50).
9. Dispositif de nettoyage (10) selon l'une quelconque revendication 4 à 8, caractérisé en ce que le quatrième liquide est constitué par au moins une partie du liquide contenu dans le premier réservoir (22).9. Cleaning device (10) according to any one of claims 4 to 8, characterized in that the fourth liquid consists of at least part of the liquid contained in the first tank (22).
10. Dispositif de nettoyage ( 10) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte des deuxième moyens (58) de mise sous pression du deuxième liquide.10. Cleaning device (10) according to any one of the preceding claims, characterized in that it comprises second means (58) for pressurizing the second liquid.
1 1 . Dispositif de nettoyage (10) selon la revendication précédente, caractérisé en ce que les premiers et deuxièmes moyens (36, 58) de mise sous pression sont un moyen unique de mise sous pression.1 1. Cleaning device (10) according to the preceding claim, characterized in that the first and second means (36, 58) for pressurizing are a single means for pressurizing.
12. Dispositif de nettoyage (10) selon la revendication 10, caractérisé en ce que les deuxièmes moyens (58) de mise sous pression élèvent la pression du deuxième liquide à une deuxième pression supérieure à une première pression du premier liquide obtenue par les premiers moyens (36) de mise sous pression.12. Cleaning device (10) according to claim 10, characterized in that the second pressurizing means (58) raise the pressure of the second liquid to a second pressure greater than a first pressure of the first liquid obtained by the first means (36) pressurization.
13. Dispositif de nettoyage (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le deuxième liquide est projeté sur la vitre (18) à nettoyer par un deuxième dispositif de projection. 13. Cleaning device (10) according to any one of the preceding claims, characterized in that the second liquid is projected onto the window (18) to be cleaned by a second projection device.
14. Dispositif de nettoyage (10) selon la revendication précédente, caractérisé en ce que l'un au moins des dispositifs de projection (34, 70) comporte au moins une buse de projection.14. Cleaning device (10) according to the preceding claim, characterized in that at least one of the projection devices (34, 70) comprises at least one projection nozzle.
15. Dispositif de nettoyage (10) selon la revendication précédente, caractérisé en ce que l'une au moins des buses de projection est portée par un élément mobile, tel qu'un bras ou un balai du mécanisme d'essuie-glace.15. Cleaning device (10) according to the preceding claim, characterized in that at least one of the nozzles projection is carried by a mobile element, such as an arm or a blade of the wiper mechanism.
16. Dispositif de nettoyage (10) selon la revendication 15, caractérisé en ce que l'une au moins des buses de projection est portée par un élément fixe, tel qu'un élément de carrosserie d'un véhicule.16. Cleaning device (10) according to claim 15, characterized in that at least one of the projection nozzles is carried by a fixed element, such as a body element of a vehicle.
17. Dispositif de nettoyage (10) selon la revendication précédente, caractérisé en ce que l'une au moins des buses est située dans une position centrale par rapport à la zone de la vitre (18) à nettoyer.17. Cleaning device (10) according to the preceding claim, characterized in that at least one of the nozzles is located in a central position relative to the area of the window (18) to be cleaned.
18. Dispositif de nettoyage (10) selon l'une des revendications 16 ou 17, caractérisé en ce que l'une au moins des buses de projection est orientable par rapport à la vitre (18) à nettoyer en fonction d'au moins un paramètre du véhicule, tel que le flux aérodynamique ou la vitesse du véhicule.18. Cleaning device (10) according to one of claims 16 or 17, characterized in that at least one of the projection nozzles is orientable relative to the window (18) to be cleaned according to at least one vehicle parameter, such as aerodynamic flow or vehicle speed.
19. Dispositif de nettoyage (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le deuxième liquide a des propriétés détergentes.19. Cleaning device (10) according to any one of the preceding claims, characterized in that the second liquid has detergent properties.
20. Dispositif de nettoyage (10) selon la revendication précédente, caractérisé en ce que le deuxième liquide consiste en une solution détergente stockée dans un deuxième réservoir (54).20. Cleaning device (10) according to the preceding claim, characterized in that the second liquid consists of a detergent solution stored in a second tank (54).
21 . Dispositif de nettoyage ( 10) selon la revendication 19, caractérisé en ce que le deuxième liquide est obtenu par le mélange d'une su bstance détergente avec un cinquième liquide. 21. Cleaning device (10) according to claim 19, characterized in that the second liquid is obtained by mixing a detergent substance with a fifth liquid.
22. Dispositif de nettoyage (10) selon la revendication précédente, caractérisé en ce que le cinquième liquide est constitué au moins en partie du liquide contenu dans le premier réservoir (22).22. Cleaning device (10) according to the preceding claim, characterized in that the fifth liquid consists at least in part of the liquid contained in the first tank (22).
23. Dispositif de nettoyage ( 10) selon l'une des revendications 21 ou 22, caractérisé en ce que la substance détergente est un élément solide tel qu'une pastille, qui se dissout au contact du cinquième liquide. 23. Cleaning device (10) according to one of claims 21 or 22, characterized in that the detergent substance is a solid element such as a tablet, which dissolves on contact with the fifth liquid.
24. Dispositif de nettoyage ( 10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le deuxième liquide a des propriétés dégivrantes.24. Cleaning device (10) according to any one of the preceding claims, characterized in that the second liquid has de-icing properties.
25. Dispositif de nettoyage (10) selon la revendication précédente, caractérisé en ce que le deuxième liquide consiste en une solution dégivrante stockée dans un deuxième réservoir (56).25. Cleaning device (10) according to the preceding claim, characterized in that the second liquid consists of a deicing solution stored in a second tank (56).
26. Dispositif de nettoyage ( 10) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte un troisième circuit (52) de nettoyage pour projeter sur la vitre (18) un troisième liquide de nature et/ou de composition et/ou de caractéristiques physiques différentes de celles du premier et du deuxième liquides.26. Cleaning device (10) according to any one of the preceding claims, characterized in that it comprises a third cleaning circuit (52) for projecting onto the window (18) a third liquid of nature and / or of composition and / or physical characteristics different from those of the first and second liquids.
27. Dispositif de nettoyage (10) d'une vitre (18) selon l'une quelconque des revendications 1 à 25 caractérisé en ce que le premier et le deuxième circuits (20, 50) comportent au moins une première et/ou une deuxième canalisation (32, 62) respectivement qui relie entre eux les différents éléments constitutifs de chaque circuit (20, 50).27. A device for cleaning (10) a window (18) according to any one of claims 1 to 25 characterized in that the first and the second circuits (20, 50) comprise at least a first and / or a second pipe (32, 62) respectively which connects together the different components of each circuit (20, 50).
28. Dispositif de nettoyage (10) selon la revendication précédente prise en combinaison avec la revendication 26, caractérisé en ce que le troisième circuit (52) comporte une troisième canalisation (64) qui relie entre eux les éléments constitutifs de ce troisième circuit (52).28. Cleaning device (10) according to the preceding claim taken in combination with claim 26, characterized in that the third circuit (52) comprises a third pipe (64) which interconnects the constituent elements of this third circuit (52 ).
29. Dispositif de nettoyage (10) selon l'une des revendications 27 ou 28, caractérisé en ce qu'au moins deux desdites première et/ou deuxième et/ou troisième canalisations (32, 62, 64) sont reliées entre elles par un condu it supplémentaire (86, 132) qui s'étend d'un point de dérivation (84, 131 ) de l'une des canalisations (64, 32) à un point de raccordement (88, 134) de l'autre canalisation (32, 62).29. Cleaning device (10) according to one of claims 27 or 28, characterized in that at least two of said first and / or second and / or third pipes (32, 62, 64) are interconnected by a additional conduit (86, 132) which extends from a branch point (84, 131) of one of the pipes (64, 32) to a connection point (88, 134) of the other pipe ( 32, 62).
30. Dispositif de nettoyage (10) selon l'une quelconque des revendications 28 ou 29, caractérisé en ce qu'au moins deux desdits circuits (20, 50, 52) comportent des éléments communs, tels qu'un réservoir de liquide (22), des moyens de mise sous pression, un dispositif de projection (34), ou un tronçon de canalisation.30. Cleaning device (10) according to any one of claims 28 or 29, characterized in that at least two of said circuits (20, 50, 52) include common elements, such as a liquid reservoir (22 ), means of placing under pressure, a projection device (34), or a section of pipe.
31 . Dispositif de nettoyage (10) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte des moyens de commande (1 14) de la projection d'au moins l'un des liquides.31. Cleaning device (10) according to any one of the preceding claims, characterized in that it comprises control means (1 14) for the projection of at least one of the liquids.
32. Dispositif de nettoyage (10) selon la revendication précédente, caractérisé en ce que les moyens de commande ( 1 14) de projection des liquides permettent de projeter conco- mitamment le premier et le deuxième et/ou le troisième liquide.32. Cleaning device (10) according to the preceding claim, characterized in that the control means (1 14) for projecting liquids make it possible to simultaneously project the first and second and / or third liquid.
33. Dispositif de nettoyage (10) selon l'une des revendications 31 ou 32, caractérisé en ce que les moyens de commande (1 14) sont actionnés manuellement par l'utilisateur d u véhicule.33. Cleaning device (10) according to one of claims 31 or 32, characterized in that the control means (1 14) are actuated manually by the user of the vehicle.
34. Dispositif de nettoyage (10) selon l'une quelconques revendications 31 à 33, caractérisé en ce que les moyens de commande (1 14) sont actionnés en fonction des conditions climatiques extérieures au véhicule, telles que la température, le point de rosée et la présence ou non de pluie.34. Cleaning device (10) according to any one of claims 31 to 33, characterized in that the control means (1 14) are actuated as a function of the climatic conditions external to the vehicle, such as the temperature, the dew point and whether or not there is rain.
35. Dispositif de nettoyage (10) selon l'une quelconque des revendications 31 à 34, caractérisé en ce que les moyens de commande (1 14) sont actionnés en fonction de la présence de givre et/ou de salissures sur la surface extérieure de la vitre (18) à nettoyer.35. Cleaning device (10) according to any one of claims 31 to 34, characterized in that the control means (1 14) are actuated according to the presence of frost and / or dirt on the outer surface of the window (18) to be cleaned.
36. Dispositif de nettoyage (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le mécanisme d'essuie-glace (12) comporte un bras d'essuie-glace qui est entraîné en balayage alterné selon au moins une première vitesse qui permet le nettoyage la vitre (18), et en ce que lorsque l'un au moins des deuxième et/ou troisième liquide est projeté sur la vitre (18), le bras d'essuie-glace est entraîné à une seconde vitesse plus faible que la première pour permettre l'étalement du deuxième et/ou du troisième liquide sur une zone de la vitre ( 18) à nettoyer. 36. Cleaning device (10) according to any one of the preceding claims, characterized in that the wiper mechanism (12) comprises a wiper arm which is driven in alternating sweep according to at least a first speed which allows the window (18) to be cleaned, and in that when at least one of the second and / or third liquid is sprayed onto the window (18), the wiper arm is driven at a second speed lower than the first to allow spreading of the second and / or third liquid over an area of the glass (18) to be cleaned.
PCT/FR2001/002724 2001-09-03 2001-09-03 Window cleaning device WO2003020559A1 (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2855479A1 (en) * 2003-06-02 2004-12-03 Valeo Systemes Dessuyage ARRANGEMENT FOR CLEANING A GLASS PANEL BY COMBINING PHOTOCATALYTIC AND HYDROPHILIC COATINGS
DE102008052063A1 (en) * 2008-10-17 2010-04-22 Valeo Systèmes d'Essuyage Process for treating vehicle windows and windshield wiper and washer system
WO2014198892A1 (en) * 2013-06-14 2014-12-18 Valeo Systèmes d'Essuyage Method for washing a window of a vehicle
WO2014198895A1 (en) * 2013-06-14 2014-12-18 Valeo Systèmes d'Essuyage Method for washing a vehicle window
CN105882611A (en) * 2016-05-20 2016-08-24 奇瑞汽车股份有限公司 Automobile defrosting system and control method thereof
FR3043968A1 (en) * 2015-11-20 2017-05-26 Peugeot Citroen Automobiles Sa WASHING DEVICE FOR GLASS SURFACE OF MOTOR VEHICLE.
FR3100776A1 (en) * 2019-09-16 2021-03-19 Valeo Systemes D'essuyage CLEANING PROCEDURE FOR A GLASS SURFACE OF A VEHICLE
FR3114818A1 (en) * 2020-10-07 2022-04-08 Valeo Systèmes D’Essuyage Washing assembly for a washing liquid projection system
CN117951486A (en) * 2024-03-22 2024-04-30 广东车海洋环保科技有限公司 Method and system for generating vehicle cleaning data of intelligent car washer

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1422887A (en) * 1919-12-12 1922-07-18 Raymond H Phillips Mat
JPS63141855A (en) * 1986-12-02 1988-06-14 Kenji Okunaka Defroster for windshield pane
DE3930732A1 (en) * 1989-09-14 1991-03-28 Voralp Ets Control for vehicle accessory e.g. windscreen wipers
US5141160A (en) * 1990-05-07 1992-08-25 Waters Jimmy D Windshield deicing apparatus
GB2253338A (en) * 1991-03-02 1992-09-09 David George Rouse Vehicle screen wash
US5327613A (en) * 1990-09-27 1994-07-12 Nissan Motor Co., Ltd. Automotive wiper apparatus with combined operation of spraying and wiping
US5946763A (en) * 1995-01-17 1999-09-07 Itt Manufacturing Enterprises Inc. Module for a motor vehicle
DE19902236A1 (en) * 1999-01-21 2000-07-27 Bayerische Motoren Werke Ag Windscreen washer system for motor vehicles has single spray nozzle operated and adjusted by washing fluid pressure regulated by fluid pump

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1422887A (en) * 1919-12-12 1922-07-18 Raymond H Phillips Mat
JPS63141855A (en) * 1986-12-02 1988-06-14 Kenji Okunaka Defroster for windshield pane
DE3930732A1 (en) * 1989-09-14 1991-03-28 Voralp Ets Control for vehicle accessory e.g. windscreen wipers
US5141160A (en) * 1990-05-07 1992-08-25 Waters Jimmy D Windshield deicing apparatus
US5327613A (en) * 1990-09-27 1994-07-12 Nissan Motor Co., Ltd. Automotive wiper apparatus with combined operation of spraying and wiping
GB2253338A (en) * 1991-03-02 1992-09-09 David George Rouse Vehicle screen wash
US5946763A (en) * 1995-01-17 1999-09-07 Itt Manufacturing Enterprises Inc. Module for a motor vehicle
DE19902236A1 (en) * 1999-01-21 2000-07-27 Bayerische Motoren Werke Ag Windscreen washer system for motor vehicles has single spray nozzle operated and adjusted by washing fluid pressure regulated by fluid pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 012, no. 392 (M - 755) 19 October 1988 (1988-10-19) *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2855479A1 (en) * 2003-06-02 2004-12-03 Valeo Systemes Dessuyage ARRANGEMENT FOR CLEANING A GLASS PANEL BY COMBINING PHOTOCATALYTIC AND HYDROPHILIC COATINGS
WO2004106127A1 (en) * 2003-06-02 2004-12-09 Valeo Systemes D'essuyage System for cleaning a window panel
DE102008052063A1 (en) * 2008-10-17 2010-04-22 Valeo Systèmes d'Essuyage Process for treating vehicle windows and windshield wiper and washer system
FR3006965A1 (en) * 2013-06-14 2014-12-19 Valeo Systemes Dessuyage METHOD FOR WASHING A GLASS OF A VEHICLE
WO2014198895A1 (en) * 2013-06-14 2014-12-18 Valeo Systèmes d'Essuyage Method for washing a vehicle window
FR3006968A1 (en) * 2013-06-14 2014-12-19 Valeo Systemes Dessuyage METHOD FOR WASHING A GLASS OF A VEHICLE
WO2014198892A1 (en) * 2013-06-14 2014-12-18 Valeo Systèmes d'Essuyage Method for washing a window of a vehicle
JP2016523756A (en) * 2013-06-14 2016-08-12 ヴァレオ システム デシュヤージュＶａｌｅｏ Ｓｙｓｔｅｍｅｓ Ｄ’Ｅｓｓｕｙａｇｅ Method for cleaning vehicle windows
US9499133B2 (en) 2013-06-14 2016-11-22 Valeo Systèmes d'Essuyage Method for washing a vehicle window
FR3043968A1 (en) * 2015-11-20 2017-05-26 Peugeot Citroen Automobiles Sa WASHING DEVICE FOR GLASS SURFACE OF MOTOR VEHICLE.
CN105882611A (en) * 2016-05-20 2016-08-24 奇瑞汽车股份有限公司 Automobile defrosting system and control method thereof
CN105882611B (en) * 2016-05-20 2018-09-21 奇瑞汽车股份有限公司 A kind of Defroster device for vehicle system and its control method
FR3100776A1 (en) * 2019-09-16 2021-03-19 Valeo Systemes D'essuyage CLEANING PROCEDURE FOR A GLASS SURFACE OF A VEHICLE
FR3114818A1 (en) * 2020-10-07 2022-04-08 Valeo Systèmes D’Essuyage Washing assembly for a washing liquid projection system
CN117951486A (en) * 2024-03-22 2024-04-30 广东车海洋环保科技有限公司 Method and system for generating vehicle cleaning data of intelligent car washer

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