WO2018108556A1

WO2018108556A1 - System for spraying liquid onto a glazed surface of a vehicle

Info

Publication number: WO2018108556A1
Application number: PCT/EP2017/081028
Authority: WO
Inventors: Frédéric Giraud
Original assignee: Valeo Systemes D'essuyage
Priority date: 2016-12-14
Filing date: 2017-11-30
Publication date: 2018-06-21
Also published as: FR3059963B1; FR3059963A1

Abstract

The invention concerns a spraying system (10) for spraying a first liquid onto a glazed surface of a vehicle comprising: - a tank (30) for the first liquid, - a spraying device (50) for spraying the first liquid onto the glazed surface (7), - a circulation means (90) for circulating the first liquid from the tank (30) to the spraying device (50), and - a control device (110) controlling the circulation means (90), characterised in that the spraying system (10) is configured to be able to be installed on the vehicle in parallel with a system for spraying a second liquid onto the glazed surface and equipping the vehicle. Said invention is applicable to vehicles, in particular motor vehicles.

Description

SYSTEM FOR PROJECTING LIQUID ON A SURFACE

GLASS OF VEHICLE

The present invention relates to a liquid projection system on a glazed surface installed in retrofit on a vehicle, in particular automobile. More particularly, the invention relates to a liquid projection assembly, as well as the vehicle equipped with such an assembly. The invention also relates to a method of projecting liquid onto a glazed surface of such a vehicle.

According to the prior art illustrated in FIG. 1, a vehicle is equipped with a spraying system 1 of liquid, such as a washing liquid. This spraying system 1 comprises a reservoir 3 for such a liquid, as well as a device 5 for spraying the liquid on a glass surface 7. The spraying device 5 is here illustrated by two nozzles arranged near a windshield. 7. A liquid circulation means 9 such as a pump makes it possible to circulate the liquid from the tank 3 to the spraying device 5. For this, the pump 9 is controlled by a control device actuated by a user . The control device is a generally control lever 210 located near a steering wheel of the vehicle.

When the user wishes to carry out a washing cycle, he actuates the control lever 210 which turns on the pump 9, which generates the spraying of the liquid on the windshield 7 via the jets 5. In a conventional manner, the Actuation of the control lever 210 also activates a motor which operates directly or indirectly via mechanical connection elements of the drive arms 4 carrying the wiper blades 6. In this way, the wiper blades windows 6 perform an angular reciprocating motion on the windshield 7. These wiper blades 6 comprise scraper blades which rub against the windshield 7 and which evacuate the water by bringing it into position. outside the driver's field of vision. The angular back-and-forth movement then makes it possible to evacuate the liquid left on the windshield 7 and also makes it possible to prevent the driver's vision on his environment from being disturbed.

Generally, a vehicle including automobile comprises a single tank 3 with a single type of liquid. However, there are spray systems 1 comprising several reservoirs 3 containing liquids of various natures allowing the user to adapt to the state of the windshield 7. Such liquids may for example be capable of to more easily remove insects stuck on the windshield or accelerate the defrosting of the glass surface. Nevertheless, these systems 1 to several tanks 3 are available only on the high-end vehicles and last generation.

This system 1 to several tanks 3 is integrated and designed only for a vehicle sold as original equipment, which makes it incompatible for later mounting on a vehicle already in circulation and for which it was not designed.

The object of the present invention is therefore to overcome the aforementioned disadvantage of the prior art and to provide a projection system that can be installed as a retrofit, thereby offering the possibility of equipping a vehicle already put into circulation with a additional means capable of acting on frost or insects, and generally capable of treating the glazed surface with a liquid with enhanced action, then of cleaning and / or rinsing the same glazed surface by the installed spraying system in original equipment on the vehicle.

To this end, the invention relates to a system for projecting a first liquid onto a glass surface of a vehicle comprising:

a reservoir for the first liquid,

a device for projecting the first liquid onto the glass surface,

means for circulating the first liquid from the reservoir to the projection device, and

a control device controlling the circulation means,

characterized in that the projection system is configured to be installed on the vehicle in parallel with a system for spraying a second liquid on the glass surface and equipping the vehicle.

Thus, the invention allows an installation of such a replacement projection system. The terms "first" and "second" mean that the "first" liquid is distinct from the "second" liquid, in particular by physicochemical properties and different actions on the same glazed surface.

By "in parallel" is meant that each element of the projection system object of the invention is independent and distinct from the elements of the spray system existing on the vehicle. An additional advantage of the invention is that it makes it possible to provide two separate liquid circuits to avoid any problem of dilution between the first and the second liquid when they share the same circuit.

According to one embodiment, the spraying system comprises:

a second reservoir for a second liquid,

a device for spraying the second liquid on the glass surface,

a second means for circulating the second liquid from the second reservoir to the spraying device,

a second control device controlling the second circulation means.

It is understood that the glazed surface sprayed by the second liquid is the same glazed area as that sprayed by the first liquid, the extent of this watering may nevertheless be slightly different.

The invention also relates to a liquid spray assembly on a glass surface of a vehicle comprising:

a spraying system comprising:

a reservoir for a second liquid,

a device for projecting the second liquid onto the glass surface,

a means for circulating the second liquid from the reservoir to the projection device,

a control device controlling the means for circulating the second liquid

characterized in that said assembly comprises a system for projecting a first liquid on the glass surface, the projection system comprising:

an additional reservoir for a first liquid,

a device for projecting the first liquid onto the glass surface,

a means of additional circulation of the first liquid from the additional reservoir to the projection device, and

an additional control device controlling the additional circulation means.

The features listed below can be taken alone or in combination for the projection system and the projection assembly: According to one embodiment, the first liquid is a deicing liquid or a demoustiquant liquid capable of being sprayed on the glass surface.

By deicing fluid is meant a liquid having physicochemical properties such as its composition, density, pH and / or viscosity that can melt the frost or snow present on the glass surface. Dilution problems avoided by paralleling the projection system with the spray system all along the circuit thus allow a better efficiency of the deicing fluid.

By liquid demoustiquant means a liquid capable of dissolving organic material, such as crushed insects on the glass surface, in a time less than 60 seconds once the liquid demoustiquant has been projected on the glass surface.

In one embodiment, the second liquid is a washing liquid of the glass surface.

By washing liquid means a liquid having a composition for cleaning the glass surface thus improving the visibility of the driver. Such a washing liquid does not have the same physicochemical properties as a deicing or demulsifying liquid.

In one embodiment, the projection device or the spray device comprises at least one nozzle. In one embodiment, the nozzle is configured to be located on a vehicle hood, on an awning grid or on a drive arm carrying a wiper blade.

In one embodiment, the projection device comprises at least one wiper blade. According to one embodiment, the projection device comprises at least one ramp intended to be attached to at least one of the wiper blades existing on the vehicle.

According to one embodiment, the projection device comprises at least one wiper blade having a projection ramp attached to the wiper blade or integrated therewith, i.e. formed in a component of the wiper blade as such.

According to one embodiment, the additional reservoir for the first liquid comprises a closure cap, the closure cap incorporating the additional circulation means of the first liquid from the additional reservoir to the additional projection device.

In one embodiment, the additional reservoir for the first liquid is of flexible material.

By flexible material is meant a material having the ability to undergo stresses not causing irreversible deformation tank. Such a material has the advantage of avoiding the problems of pressurization and allows a facilitated introduction of this reservoir within the vehicle, especially in the engine compartment.

The invention also relates to a vehicle characterized in that it comprises a liquid projection assembly on a glazed surface as defined above. The subject of the invention is also a method for projecting liquid produced using a liquid projection assembly as defined above:

a step of actuating the additional control device enabling the additional circulation means of the first liquid to operate by allowing a circulation of the first liquid from the additional reservoir to the projection device, which allows a projection of the first liquid on the glazed surface.

According to one embodiment, when the projection device comprises at least one wiper blade, the method comprises a step of launching a wiping cycle allowing a movement of the windscreen wiper blades prior to the wiper blade. step of actuating the additional control device. According to one embodiment, the actuation step is performed by actuating a switch.

According to one implementation, a duration of projection of the first liquid on the glass surface corresponds to a duration of actuation of the switch. Thus, the more the user actuates the larger switch will be the amount of liquid sprayed on the glass surface. This makes it possible, among other things, to adapt the quantity of liquid delivered to the state of the glass surface.

According to one implementation, the method comprises a pause time step in which the first liquid acts on the glazed surface during a time of action.

According to one embodiment, the method comprises a step of washing the glass surface with a washing liquid after the step of actuating the additional control device, the washing step corresponding to:

a spraying of the washing liquid on the glass surface by the spraying system, and

- A wiping cycle corresponds to a power supply of a motor actuating at least one drive arm carrying a wiper blade for an angular movement of the windscreen wiper blades. .

Other characteristics, details and advantages of the invention will emerge more clearly on reading the description given below, as an indication, in relation to the following figures:

FIG. 1 is a schematic representation of a spraying system according to the prior art,

FIG. 2 is a schematic representation of a projection system according to one embodiment of the invention in its packaging intended for sale,

FIG. 3 is a schematic representation of a projection assembly according to one embodiment of the invention and illustrates the rest position of the windscreen wiper blades,

FIG. 4 is a schematic representation of a projection assembly according to one embodiment of the invention and illustrates a step of a liquid projection process carried out using such a set and in which the brooms wiper blades are in the up position,

FIG. 5 is a schematic representation of a projection assembly according to one embodiment of the invention and illustrates a step of a liquid projection process carried out using such a set and in which the controller command is released,

FIG. 6 represents a diagram of the steps of a projection method of liquid produced using a projection assembly according to the invention.

Figure 1 shows a liquid spraying system 1 according to the prior art. In the rest of the description, the liquid used by the spraying system is called the second liquid. This spraying system 1 comprises a reservoir 3, hereinafter referred to as the second reservoir, for such a liquid, as well as a device for spraying the second liquid on a glass surface 7. The spraying device 5 is here illustrated by two spray nozzles arranged near the glass surface 7. The glazed surface 7 is here a windshield. A circulation means 9 for the second liquid, hereinafter referred to as second circulation means, such as a pump makes it possible to circulate the liquid from the second reservoir 3 to the spraying device 5. For this, the pump 9 is controlled by a control device, hereinafter called the second control device, actuated by a user. The control device is a joystick 210 located near a steering wheel of the vehicle.

The spraying system 1 of liquid that has just been described equips the vehicle as soon as it is first put into circulation, the latter is commonly called original equipment.

The present invention aims the aftermarket market, that is to say the equipment reported during the life of the vehicle. To this end, the invention relates to a projection system 10 of a first liquid shown in FIG. 2 intended to be installed as a retrofit on the vehicle. This projection system 10 is configured to be installed in parallel with a spraying system 1 of a second liquid already installed on a vehicle in circulation. "Second-gear" means that the projection system 10 of the first liquid is intended to be installed on a vehicle put into circulation and already equipped with the spraying system 1 of the second liquid. In other words, the vehicle which is already equipped with the spraying system 1 is, at the base, not designed to receive a projection system 10. Thus, such a projection system 10 intended for the aftermarket market is sold independently of the vehicle, and regardless of the spraying system 1. The projection system 10 is for example sold in a package 300. This is a retrofit that the vehicle owner can install on his vehicle. The projection system 10 of the first liquid and the spraying system 1 of the second liquid water the same glazed surface 7 of the vehicle. The glazed surface 7 is for example a windshield, a rear window of the vehicle, the windows of the headlights of the vehicle, or external sensors placed on the body of the vehicle.

Alternatively, the spraying system 10 of the first liquid and the spraying system 1 of the second liquid can water two separate glazed surfaces of the same vehicle.

The first and the second liquid are of different physicochemical natures. According to a first embodiment, the first liquid is a deicing liquid. By deicing liquid is meant a liquid having physico-chemical properties, such as its composition, its density, its pH, its viscosity, which allow to melt the frost or the snow present on the glass surface 7. According to a second mode of realization, the first liquid is a demoustiquant liquid. By demosaicing liquid is meant a liquid capable of dissolving / loosening organic material, such as crushed insects on the glass surface 7, in a time preferably of less than sixty seconds once the liquid demoustiquant has been projected on the glass surface 7.

The second liquid is preferably a washing liquid. A washing liquid is defined as having a composition for cleaning the glass surface 7 thereby improving driver visibility. Such a washing liquid does not have the same physicochemical properties as a deicing liquid or a demustizing liquid. Of course, the first and the second liquid can be interchanged in their tanks 3, 30, that is to say that the first liquid can take the place of the second liquid and vice versa. The advantage of having two liquids of different natures in two separate and parallel circuits allows the user to be able to choose the action that he wishes to achieve on the glass surface 7 while avoiding a loss of efficiency of the liquid following a phenomenon of dilution or incompatibility inherent in the use of the same circuit for two liquids of different natures.

As illustrated in FIG. 2, the projection system 10 of the first liquid comprises a reservoir 30 for the first liquid, as well as a device for spraying 50 of the first liquid on the glass surface 7. A circulation means 90 makes it possible to circulating the first liquid from the tank 30 to the projection device 50. For this, the circulation means 90 is controlled by a control device 110 actuated by the user. The reservoir 30 for the first liquid, hereinafter referred to as the first reservoir or additional reservoir, is preferably made of a flexible material. By flexible material is meant a material having the ability to withstand stresses that do not cause irreversible deformations of the first reservoir 30. Such a material has the advantage of avoiding the problems of pressurization and allows easy implementation. of this first reservoir 30 in the vehicle, especially in the engine compartment. Thus, such a flexible material is well suited to the context of the second ride, because the flexibility of the first reservoir 30 and allows to position it more easily in the vehicle. According to another embodiment, the first reservoir 30 may also be made of a rigid material.

The projection device 50 comprises at least one wiper blade 6 having a reported or integrated projection ramp. By projection ramp integrated in the brush 6, it is understood for example that the ramp is made in a constitutive component of the wiper blade 6, for example by recess generated in a wiper blade structure element, so to create a liquid circulation duct inside the wiper blade 6. The circulation duct may be made for example in a deflector of the wiper blade 6. To ensure the projection of liquid, the conduit communicates with orifices opening towards the glass surface 7. These orifices are, for example, aligned along the wiper blade 6. These orifices thus allow the projection of the first liquid on the glass surface 7.

By projection ramp reported on the wiper blade 6, for example means a rigid liquid circulation pipe mounted on the wiper blade 6. The assembly is for example made by clipping-type engagement on the wiper blade 6. Wiper blade 6. The circulation pipe is pierced and has openings opening towards the glass surface 7. These orifices are, for example, aligned along the pipe. These orifices thus allow the projection of the first liquid on the glass surface 7.

According to another variant embodiment, the projection device 50 comprises at least one nozzle disposed near the glass surface 7, in particular the nozzle may be located on a hood of the vehicle, on an awning grid or on at least one arm 4 carrier of the wiper blade 6. Note that this nozzle is not the same used by the spray system 1, in particular to prevent a phenomenon of dilution or incompatibility of liquid, as well as for ease of installation of the projection system 10 in the aftermarket.

The circulation means 90, hereinafter referred to as the first circulation means or additional circulation means, is for example a pump 91. This first pump 91 may be attached to or integrated with the first reservoir 30. By pump 91 reported on the first reservoir 30, it is meant that the pump 91 is excluded from the internal structure of the first reservoir 30. By pump 91 integrated in the first reservoir 30 is meant that the pump 91 is part of the internal structure of the first reservoir 30. The internal structure of the first reservoir 30 being delimited by the internal walls of the first reservoir 30 as well as by a closure plug closing the first reservoir 30. According to one embodiment, the first reservoir 30 comprises a closure plug integrating the pump 91. Thus, with a pump 91 integrated with the first reservoir 30, the space requirement of such a projection system 10 is reduced, particularly in the engine compartment, which i again makes it easy to install aftermarket. The control device 110, hereinafter referred to as the first control device or additional control device, makes it possible to operate the pump 91 at the request of the user. For this purpose, the first control device 110 comprises an actuating means 111 of the switch type. The switch 111 is, for example, pushbutton. Thus, the projection system 10, covered by the invention, such that it can be marketed therefore comprises: a first reservoir 30 for the first liquid, a projection device 50 comprising for example a wiper blade 6 having an integrated projection ramp or a projection ramp intended to be attached to an existing wiper blade on the vehicle, a first means 90 for circulating the first liquid from the first reservoir 30 to the wiper blade; ice 6 such as a pump 91, and a first control device 110 driving the pump 91. This system will for example be sold in a package 300 visible in Figure 2.

This projection system 10 is configured to be installed on the vehicle in parallel with the spraying system 1 equipping the vehicle. By this is meant that the first reservoir 30 for the first liquid is distinct from the second reservoir 3 for the second liquid, the projection device 50 of the first liquid is distinct. of the spraying device 5 of the second liquid, that the first circulation means 90 of the first liquid is distinct from the second circulation means 9 of the second liquid and finally that the first control device 110 is distinct from the second control device 210. Distinct means that the container is different. The present invention also relates to a set 100 of liquid projection on the glazed surface 7 of a vehicle. This assembly 100, illustrated in Figures 3 to 5, comprises a projection system 10 of a first liquid and a spraying system 1 of a second liquid. In this assembly 100, the projection system 10 is connected in parallel with the spraying system 1. Thus, each element of the projection system 10 is independent and distinct from the spraying system 1. By this is meant that the first reservoir 30 for the spraying system first liquid is distinct from the second reservoir 3 for the second liquid, the projection device 50 of the first liquid is distinct from the spraying device 5 of the second liquid, the first circulation means 90 of the first liquid is distinct from the second means for putting into circulation 9 of the second liquid and finally that the first control device 110 is distinct from the second control device 210. Distinct means that the container is different.

Such an assembly then makes it possible to provide two separate and parallel liquid circuits making it possible to avoid any problem of dilution and / or incompatibility between the first and the second liquid all along the two circuits and also makes it possible to mount a projection system 10 on a vehicle already put into circulation without interfering with the spray system 1 already installed on the vehicle.

With the aid of FIGS. 3 to 5 as well as with the aid of the diagram represented in FIG. 6, an embodiment of a liquid projection process realized using the projection assembly is now described. 100 on a glass surface 7 of a vehicle equipped with such a projection assembly 100.

In a first step 201 illustrated in FIGS. 3 and 4, the user actuates the first control device 110, for example by pressing the switch 111 of the pushbutton type. This control then allows the first liquid to be circulated from the first reservoir 30 to the projection device 50, via the first circulation means 90 such as the pump 91. The startup of the pump 91 then allows a projection of the first liquid L1 on the glass surface 7 by the projection device 50. According to an alternative embodiment of the method, the duration of projection of the first liquid L1 on the glazed surface 7 corresponds to the duration of actuation of the switch 111 during step 201. Thus, the longer the actuation duration is long, the greater the amount of the first liquid LI projected on the glass surface 7 is important. This makes it possible, among other things, to adapt the quantity of liquid Ll delivered to the state of the glass surface 7.

When the projection device 50 comprises the windscreen wiper blade 6, or more precisely when the projection device 50 comprises a wiper blade 6 incorporating a projection ramp, the liquid projection method carried out at the Using the projection assembly 100 includes an initial step 200 of launching a wiping cycle. The wiping cycle corresponds to the power supply of a motor actuating the drive arms 4 carrying the wiper blades 6. The wiping cycle thus makes it possible to initiate an angular back and forth motion wiper blades 6 on the glass surface 7, the glass surface 7 is here a windshield or a rear window of the vehicle. This step 200 of launching the wiping cycle is preferably carried out before step 201 of actuating the first control device 110. According to another variant embodiment, this step 200 of launching the wiping cycle is carried out at the same time. time that the step 201 of actuation of the control device 110.

More specifically, and as illustrated in FIGS. 3 and 4, the wiping movement described by the brushes corresponds to a displacement from an initial position P until it returns to this initial position P via an intermediate position H where the wipers reach the highest point of their cycle on the glass surface 7. As shown in FIGS. 4 and 5, the projection device 50 makes it possible to project the first liquid LI continuously and during the movement of angular movement of the windscreen wiper blades 6 initiated in step 200 until the user releases the switch 111. As can be seen in FIG. 5, the user in a step 202 interrupts the first control device 110, in particular by releasing the switch 111, in order to stop the projection of the first liquid Ll on the windshield 7.

Once the switch 111 is released, the user in a pause time step 203 allows the first liquid L1 to act on the glass surface 7 during a time of action, allowing the first liquid L1 to act on the glass surface 7 This action time is by recommended example of sixty seconds so that the first liquid LI project has a reinforced action on the glass surface 7.

Note that in this embodiment, the projection device 50 is disposed on the wiper blade 6 so as to project the first liquid towards the top of the windshield, that is to say in the direction of the intermediate position H.

After allowing the first liquid L1 to act during step 203, the user starts a washing cycle in a step 204. This washing step 204 makes it possible to eliminate any traces of the first liquid L1 left on the glass surface 7. The washing cycle corresponds to a spraying of the washing liquid on the glass surface 7 by the spraying system 1 existing on the vehicle and to a wiping cycle allowing a movement of the windscreen wiper blades 6 on the glass surface 7.

More specifically, the spraying of the washing liquid on the glass surface 7 by the spraying system 1 is carried out by the user by actuating the second control device, such as the control lever 210. Actuation of the control lever has the effect of starting the second circulation means 9 allowing the circulation of the second liquid, here the washing liquid, from the second tank 3 to the spraying device 5. The start of the second means of circulation 9 then allows a spraying of the second liquid on the first liquid L1 and on the glass surface 7 by the spraying device 5. The wiping cycle, generally carried out simultaneously with the washing cycle allows the evacuation of both types of liquid present on the windshield 7.

It goes without saying that the invention is not limited to the only embodiments described and shown in the figures.

Claims

A projection system (10) of a first liquid on a glass surface (7) of a vehicle comprising:

a reservoir (30) for the first liquid,

a projection device (50) for the first liquid on the glazed surface (7),

- means for circulating (90) the first liquid from the reservoir (30) to the projection device (50), and

a control device (110) controlling the circulation means (90), characterized in that the projection system (10) is configured so that it can be installed on the vehicle in parallel with a spraying system (1) a second liquid on the glass surface (7) and equipping the vehicle.

2. System according to claim 1, characterized in that the spraying system (1) comprises:

a second reservoir (3) for a second liquid,

a device for spraying (5) the second liquid on the glass surface (7),

a second means for circulating (9) the second liquid from the second reservoir (3) to the spraying device (5),

a second control device (210) driving the second circulation means (9).

3. System according to claim 1 or 2, characterized in that the first liquid and the second liquid have different physicochemical properties.

4. System according to any one of claims 1 to 3, characterized in that the first liquid is a deicing liquid or a demoustiquant liquid capable of being projected onto the glass surface (7).

5. System according to any one of claims 1 to 4, characterized in that the second liquid is a washing liquid of the glass surface (7).

6. System according to any one of claims 1 to 5, characterized in that the projection device (50) comprises at least one wiper blade (6) having a reported projection ramp or integrated.

7. System according to any one of the preceding claims, characterized in that the reservoir (30) for the first liquid comprises a closure cap, the closure cap incorporating the means for circulating (90) the first liquid from the reservoir (30) to the projection device (50).

8. System according to any one of the preceding claims, characterized in that the reservoir (30) for the first liquid is of flexible material.

9. A liquid spray assembly (100) on a glass surface (7) of a vehicle comprising:

a spraying system (1) comprising:

a reservoir (3) for a second liquid,

a device for spraying (5) the second liquid on the glass surface (7),

- means for circulating (9) the second liquid from the reservoir (3) to the spraying device (5),

a control device (210) controlling the circulation means (9) for the second liquid,

characterized in that said assembly (100) comprises a projection system (10) of a first liquid on the glass surface (7) according to any one of claims 1 to 8.

10. The assembly of claim 9, characterized in that the projection device (50) or the spraying device (5) comprises at least one nozzle.

11. An assembly according to the preceding claim, characterized in that the nozzle is configured to be located on a vehicle hood, on an awning grid or on a drive arm (4) carrying a brush of es ice soot (6).

12. Vehicle characterized in that it comprises a liquid spray assembly (100) on a glass surface (7) as defined according to any one of claims 9 to

11.

13. Liquid projection method carried out using a liquid projection assembly (100) defined according to any one of claims 9 to 11 characterized in that it comprises: an actuation step (201) of the additional control device (110) allowing the additional circulating means (90) of the first liquid (Ll) to function by allowing a circulation of the first liquid (Ll) from the additional reservoir; (30) to the projection device (50), which allows a projection of the first liquid (L1) on the glass surface (7).

14. Method according to the preceding claim, characterized in that the projection device (50) comprises at least one soot-ice broom (6), and in that the method comprises a step (200) of launch of a wiping cycle allowing movement of the windscreen wiper blades (6) prior to the actuating step (201) of the additional control device (110).

15. The method of claim 13 or 14, characterized in that it comprises a step of washing (204) the glass surface (7) with a washing liquid after the actuating step (201) of the control device. additional (110), the washing step (204) corresponding to:

a spraying of the washing liquid on the glass surface (7) by the spraying system (1), and

- A wiping cycle corresponding to a power supply of a motor actuating at least one drive arm (4) carrying a wiper blade (6) allowing angular back and forth movement of windscreen wiper blades (6).