Cleaning device for a motor vehicle, motor vehicle, and associated control method

WO2025045836A1PCT designated stage expired Publication Date: 2025-03-06VALEO SYST DESSUYAGE SAS
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
PCT/EP2024/073844
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-08-28
Filing Date
2024-08-26
Publication Date
2025-03-06

Smart Images

  • Figure EP2024073844_06032025_PF_FP_ABST
    Figure EP2024073844_06032025_PF_FP_ABST
Patent Text Reader

Abstract

The present invention relates to a cleaning device (1) for a motor vehicle, comprising: - at least one wiper (3), - an electric motor (5) configured to drive the wiper (3) via a drive mechanism, - a device (9) for spraying a cleaning liquid, wherein the electric motor (5) is an electronically controlled motor and in that, in response to a cleaning command, the cleaning device (1) is configured to apply a cleaning program comprising a cleaning cycle (n1) with spraying of cleaning liquid and at least one subsequent wiping cycle (e1, e2), wherein the sweeping amplitude of the wiper (3) during the cleaning cycle (n1) is greater than that of the, at least one, subsequent wiping cycle (e1, e2).
Need to check novelty before this filing date? Find Prior Art

Description

Cleaning device for motor vehicle, motor vehicle and associated control method

[0001] The present invention falls within the field of devices for cleaning motor vehicle equipment.

[0002] Motor vehicles include cleaning devices for cleaning an exterior surface of the motor vehicle, including the vehicle's windshield.

[0003] These cleaning devices generally comprise a device for spraying a cleaning liquid and a wiping device comprising at least one wiper blade arranged on a wiping arm driven between a low position and a high position of the windshield and making it possible to wipe away the mud formed by the mixture of the cleaning liquid and the particles or elements present on the surface to be cleaned.

[0004] In the presence of a significant quantity of particles or elements, the sludge can concentrate at the turning positions of the wiper blade and in particular at the high turning position to form an agglomerate.

[0005] However, this agglomerate can be re-spread on the windscreen by the wiper blade during its successive passes, which can then lead to a reduction in visibility for the driver of the motor vehicle.

[0006] It is therefore necessary to find a solution to improve the efficiency of a cleaning device comprising a cleaning cycle in which a cleaning liquid is sprayed followed by one or more wiping cycles.

[0007] To this end, the present invention relates to a cleaning device for a motor vehicle comprising:- at least one wiper blade,- an electric motor configured to drive the wiper blade via a drive mechanism,- a device for spraying a cleaning liquid,in which the electric motor is an electronized motor and in that in response to a cleaning command, the cleaning device is configured to apply a cleaning program comprising a cleaning cycle with spraying of cleaning liquid and at least one subsequent wiping cycle in which the wiping amplitude of the wiper blade during the cleaning cycle is greater than that of the at least one subsequent wiping cycle.

[0008] Applying a cleaning cycle with a greater sweep amplitude than the sweep of the subsequent wiping cycle(s) makes it possible to avoid re-spreading the sludge pushed during the cleaning cycle during the subsequent wiping cycles and thus obtain more effective cleaning.

[0009] According to another aspect of the present invention, the cleaning device is configured to apply, in response to a cleaning command: - a cleaning cycle in which the electric motor is configured to drive the wiper blade between a first high turning position and a first low turning position and in which the projection device is configured to project cleaning liquid during at least part of the cleaning cycle and, - at least one wiping cycle in which the electric motor is configured to drive the wiper blade between a second high turning position and a second low turning position,at least one of the second upper turning position or the second lower turning position is offset from the first upper turning position or the first lower turning position respectively such that the surface wiped by the wiper blade during the wiping cycle is less than the surface wiped by the wiper blade during the cleaning cycle.,

[0010] Applying a cleaning cycle with at least one high or low turn position offset from an additional cleaning cycle or subsequent wiping cycles helps avoid re-spreading sludge pushed during the cleaning cycle during subsequent cycles.

[0011] According to another aspect of the present invention, in response to the cleaning command, the cleaning device is also configured to apply, after the cleaning cycle, an additional cleaning cycle in which the electric motor is configured to drive the wiper blade between a third high turning position and a third low turning position and in which the projection device is configured to project cleaning liquid during at least a part of the additional cleaning cycle, the third high turning position being located between the first high turning position inclusive and the second high turning position inclusive and the third low turning position being located between the first low turning position inclusive and the second low turning position inclusive.

[0012] According to another aspect of the present invention, the cleaning device is also configured to, once the at least one cleaning cycle and the at least one wiping cycle are performed, repeat the at least one cleaning cycle and the at least one wiping cycle.

[0013] Advantageously, the cleaning device is configured to mark a pause between the execution of the first set of cleaning and wiping cycles and the subsequent set of cleaning and wiping cycles.

[0014] According to another aspect of the present invention, the location of the first and second high turning positions is determined as a function of the speed of movement of the motor vehicle and / or the geometry of the windshield.

[0015] According to another aspect of the present invention, the electric motor is configured to drive the wiper blade at a first travel speed during the cleaning cycle and at a second travel speed, greater than the first travel speed, during the wiping cycle.

[0016] According to another aspect of the present invention, the first travel speed is determined based on the travel speed of the motor vehicle.

[0017] According to another aspect of the present invention, the first speed of movement of the wiper blade is all the lower the lower the speed of movement of the motor vehicle.

[0018] According to another aspect of the present invention, the first speed of movement of the wiper blade is between 30 and 40 cycles per minute, in particular 35 cycles per minute when the speed of the vehicle is zero or lower than a predetermined speed.

[0019] According to another aspect of the present invention, the cleaning liquid projection device comprises at least one projection nozzle arranged on a wiping arm or on the wiper blade and configured to project cleaning liquid on the high side of the wiper blade, said cleaning liquid projection device being configured to project cleaning liquid via the at least one nozzle, during the cleaning cycle when the wiper blade is moved from the first low turning position to the first high turning position.

[0020] The present invention also relates to a motor vehicle comprising a cleaning device as described above.

[0021] The present invention also relates to a method for controlling a cleaning device comprising at least one wiper blade, in which the cleaning comprises the application of - a cleaning cycle in which the wiper blade is driven between a first high turning position and a first low turning position and in which cleaning liquid is sprayed onto the outer surface during at least part of the cleaning cycle and, - at least one wiping cycle in which the wiper blade is driven between a second high turning position and a second low turning position,at least one of the second upper turning position or the second lower turning position is offset from the first upper turning position or the first lower turning position respectively such that the surface wiped by the wiper blade during the wiping cycle is less than the surface wiped by the wiper blade during the cleaning cycle.,

[0022] According to another aspect of the present invention, the control method also comprises applying, after the cleaning cycle, an additional cleaning cycle in which the wiper blade is driven between a third high turnaround position and a third low turnaround position and in which cleaning liquid is sprayed onto the outer surface during at least a portion of the additional cleaning cycle, the third high turnaround position being located between the first high turnaround position inclusive and the second high turnaround position inclusive and the third low turnaround position being located between the first low turnaround position inclusive and the second low turnaround position inclusive.

[0023] Other characteristics and advantages of the invention will appear more clearly on reading the following description, given by way of illustrative and non-limiting example, and the appended drawings among which:

[0024] represents a schematic view of a cleaning device associated with a windshield;

[0025] represents a diagram showing the movement of a wiper blade of the wiping device during a wiping program;

[0026] represents a diagram showing the movement of a wiper blade of the wiper device during a cleaning program according to a first embodiment of the present invention;

[0027] represents a diagram showing the movement of a wiper blade of the wiper device during a cleaning program according to a second embodiment of the present invention;

[0028] represents a diagram showing the movement of a wiper blade of the wiper device during a cleaning program according to a third embodiment of the present invention.

[0029] In these figures, identical elements have the same references.

[0030] The following embodiments are examples. Although the description refers to one or more embodiments, this does not necessarily mean that each reference relates to the same embodiment, or that the features apply only to a single embodiment. Single features of different embodiments may also be combined or interchanged to provide other embodiments.

[0031] The present invention relates to a cleaning device for a motor vehicle, in particular for a motor vehicle windshield, but the invention can also be applied to other optical devices of the motor vehicle.

[0032] The figure represents an exemplary embodiment of a cleaning device 1 comprising a wiper blade 3. The number of wiper blades 3 may be different, in particular two wiper blades 3. The cleaning device 1 also comprises an electric motor 5 and a drive mechanism, comprising for example one or more arms 7 and a linkage, the mechanism being configured to drive the wiper blade 3 in a back and forth movement between predetermined positions from the rotational movement of the electric motor 5.

[0033] In addition, the electric motor 5 is an electronized motor whose control makes it possible to vary the angular extent of the movement of the wiper blade 3 (modification of the turning positions of the wiper blade 3) as well as the speed of movement of the wiper blade 3.

[0034] The cleaning device 1 also comprises a device 9 for projecting a cleaning liquid. In the example of the, the projection device 9 comprises a projection nozzle arranged on the arm 7 and configured to spray the cleaning liquid on a first side (top side) of the wiper blade 3 but other configurations are also possible such as a spraying device comprising one or more projection nozzles arranged directly on the wiper blade 3 and allowing projection on one or both sides of the wiper blade or such as a projection device comprising one or more projection nozzles arranged under the surface to be cleaned, here under the windshield 11, for example at the hood of the vehicle.

[0035] Different positions of the wiper blade 3 are also shown on the map by dotted lines.

[0036] A stop position denoted DPP located at the bottom of the windshield 11 in which the wiper blade 3 is positioned when the cleaning device 1 is deactivated and no wiping is required. It also represents the low turning position denoted IW and the high turning position denoted OW corresponding to the turning positions of the wiper blade 3 during a standard wiping mode, for example in the rain.

[0037] Larepresents a diagram showing the movement of the wiper blade 3 (represented by the curve Cb) over time t during a standard wiping operation comprising three wiping cycles denoted C1, C2 and C3 (one cycle corresponding to a round trip between the positions IW and OW). When activating the wiping mode, the wiper blade is moved from the rest position DPP to the high turnaround position OW (via the low turnaround position IW) and then returns to the low turnaround position IW which marks the transition from the first wiping cycle c1 to the second wiping cycle c2. At the end of the three wiping cycles c1, c2 and c3, the wiper blade 3 is repositioned in the rest position DPP. A so-called over-angle position and noted SA on the corresponds to the angular position not to be exceeded by the wiper blade to prevent the wiper blade from touching a side pillar defining the edge of the windshield 11.

[0038] In addition, a wiping speed can be defined (this speed varies during a cycle since it is zero when passing the turning positions but the speed here corresponds to the time necessary to complete a wiping cycle or more precisely the number of cycles carried out in a time interval), for example 40 cycles per minute. The wiping speed is generally adapted according to the quantity of water detected by a rain detector. Furthermore, a minimum speed is generally required by the standards associated with vehicle regulations. This minimum speed may depend on the vehicle's travel speed.

[0039] The cleaning device 1 also comprises a cleaning program activated when a cleaning command is received by the cleaning device 1. This cleaning command corresponds for example to a command from a user such as pressing a control button or a touch surface, moving a control lever, rotating a control button or any other type of manual or voice command.

[0040] The cleaning command may also be generated automatically by a processing unit of the motor vehicle. The motor vehicle may, for example, be equipped with an optical detector configured to detect the presence of particles or dirt on the windshield and to generate a cleaning command to the cleaning device 1 in the event of detection of such particles or dirt.

[0041] Thus, in response to receiving a cleaning command, the cleaning device 1 is configured to apply a cleaning program comprising different cycles.

[0042] The figure represents an example of a diagram representing the movement of the wiper blade over time t during a cleaning program according to a first embodiment variant.

[0043] The cleaning program comprises a cleaning cycle denoted n1 in which the electric motor 5 is configured to drive the wiper blade 3 between a first high turning position denoted OW1 and a first low turning position denoted IW1.

[0044] In the embodiment of the, the first high turning position OW1 corresponds to a position located between the high turning position OW of figures 1 and 2 and the over-angle position SA of figures 1 and 2. The first high turning position OW1 may in particular correspond to the over-angle position SA as shown in the.

[0045] The first low turning position IW1 corresponds to the low turning position IW in Figures 1 and 2.

[0046] Alternatively, according to a second embodiment, the first low turning position IW1 is located between the rest position DPP and the low turning position IW as shown in the or, according to a third embodiment, can correspond to the position DPP as shown in the.

[0047] Furthermore, during at least part of the first cleaning cycle n1, the projection device 1 is configured to project cleaning liquid, for example via the projection nozzle 9. The time interval corresponding to the projection of the cleaning liquid during the first cycle n1 is noted p1 on the.

[0048] The cleaning program may also include an additional cleaning cycle denoted n2 following the first cleaning cycle n1 in which the electric motor 5 is configured to drive the wiper blade 3 between a third high turning position corresponding here to the second high turning position denoted OW2 and a third low turning position corresponding here to the second low turning position denoted IW2.

[0049] The second high turning position OW2 is located between the first high turning position OW1 and the high turning position OW of Figures 1 and 2 (inclusive) and corresponds for example to the OW position.

[0050] The second low turning position IW2 is located between the rest position DPP and the low turning position IW of Figures 1 and 2 (inclusive).

[0051] The three positions IW, IW1 and IW2 are for example confused as in the case of the.

[0052] Alternatively, the third high flip position may be different from the second high flip position OW2 and may be located between the first OW1 and the second OW2 high flip position. Similarly, the third low flip position may be different from the second low flip position IW2 and may be located between the first IW1 and the second IW2 low flip position.

[0053] The projection device 1 is configured to project cleaning liquid during at least part of the second cleaning cycle n2, for example during the time interval noted p2.

[0054] Further additional cleaning cycles similar to the second cleaning cycle n2 (or with a further reduced cleaning amplitude) can also be applied.

[0055] The cleaning program also comprises at least one wiping cycle denoted e1 (two wiping cycles in this case denoted e1 and e2) subsequent to the cleaning cycle(s) n1, n2 in which the electric motor 5 is configured to drive the wiper blade 3 between the second high turning position OW2 defined previously and the second low turning position IW2 defined previously. These positions correspond for example to the high turning positions OW and low turning positions IW of figures 1 and 2.

[0056] These wiping cycles e1 and e2 follow the cleaning cycle(s) n1, n2 and no cleaning liquid is sprayed during these wiping cycles e1 and e2. The number of wiping cycles can be different, for example one or three.

[0057] According to a fourth embodiment variant shown in dotted lines on the, the cleaning program comprises a cleaning cycle noted n1' in which the electric motor 5 is configured to drive the wiper blade 3 between a first high turning position noted OW1' and a first low turning position noted IW1'.

[0058] The first high turning position OW1' corresponds to the high turning position OW of Figures 1 and 2. The first low turning position IW1' corresponds to the low turning position IW of Figures 1 and 2.

[0059] The cleaning program may also include an additional cleaning cycle denoted n2' following the first cleaning cycle n1 in which the electric motor 5 is configured to drive the wiper blade 3 between a second high turning position denoted OW2' and a second low turning position denoted IW2'.

[0060] The second high turning position OW2' is located before the first high turning position OW1' (i.e. so as to reduce the wiping surface compared to the first high turning position OW1').

[0061] The second low turning position IW2' is confused with the first low turning position IW1'.

[0062] Alternatively, the second low turning position IW2' may be located above the first low turning position IW1' (i.e. so as to reduce the wiping surface compared to the first low turning position IW1').

[0063] The cleaning program also comprises at least one wiping cycle denoted e1 (two wiping cycles in this case denoted e1 and e2) in which the electric motor 5 is configured to drive the wiper blade 3 between the second high turning position OW2' and the second low turning position IW2' which have been defined previously.

[0064] The fourth embodiment variant can be chosen when the vehicle's travel speed is greater than a predetermined speed, for example 80 km / h, so as to maintain an over-angle when applying the cleaning cycle n1 and thus prevent the wiper blade 3 from coming into contact with a side pillar of the vehicle delimiting the windshield 11.

[0065] According to other embodiments not shown, the high and low turning positions during the wiping cycles may be different from the high and low turning positions of the additional cleaning cycle so that the wiping surface is reduced during the wiping cycles compared to the additional cleaning cycle.

[0066] Furthermore, the speed of movement of the wiper blade(s) may vary during the different cycles. In particular, the speed of movement of the blade may be reduced during the first cleaning cycle so as to allow more efficient cleaning of the sludge.

[0067] This reduction in the speed of the brush during the first cleaning cycle may be conditioned by the maximum speed of the vehicle. Indeed, a reduced speed of the brush can lead to reduced visibility for the driver of the vehicle in the event of mud on the windshield. However, in the case of reduced speed or even zero speed, this reduction in visibility may not be a problem.

[0068] According to an embodiment of the present invention, the speed of movement of the wiper blade is between 30 and 40 cycles per minute, for example equal to 35 cycles per minute, during the first cleaning cycle n1 then 40 cycles per minute during the following cleaning or wiping cycles. Other speed values ​​can be chosen and different speeds can be used for the different cycles, for example four different speeds for the four cycles.

[0069] Thus, the use of different high and / or low turning positions during the different cycles so as to reduce the wiping surface or amplitude during successive cycles makes it possible to push the sludge out of a first wiping zone during the first cleaning cycle and to reduce the wiping to a second wiping zone or surface during subsequent cycles so as to reduce or even eliminate the re-spreading of the sludge in the second wiping zone, i.e. in the driver's vision zone.

[0070] The reduction of the wiping area can be done only at the high turning position or also at the low turning position.

[0071] Additionally, using a reduced wiper blade speed during the first cleaning cycle allows for more efficient spraying of cleaning fluid and wiping.

[0072] The present invention also relates to a motor vehicle comprising a cleaning device 1 as described previously.

[0073] The present invention also relates to a method for controlling a cleaning device 1 as described previously.

[0074] The control method comprises a cleaning program. The cleaning program is initiated, for example, upon receipt of a cleaning command issued by a user of the motor vehicle, such as by pressing a button or control surface or by voice command.

[0075] The cleaning program comprises the application of a cleaning cycle n1 in which the wiper blade 3 is driven between a first upper turning position OW1, OW1' and a first lower turning position IW1, IW1' and in which cleaning liquid is sprayed onto the outer surface during at least part of the cleaning cycle n1. The cleaning liquid is sprayed, for example, via a spray nozzle arranged on an arm 7 or a wiper blade 3 of the cleaning device 1.

[0076] The speed of the wiping arm 7 during the cleaning cycle n1 can be adjusted to a first value, for example 35 cycles per minute, this speed being able to depend on the speed of movement of the vehicle.

[0077] The cleaning program may also comprise the application, after the cleaning cycle n1, of one or more additional cleaning cycles n2 in which the wiper blade 3 is driven between a third high turning position and a third low turning position and in which cleaning liquid is sprayed onto the outer surface during at least part of the additional cleaning cycle n2. The third high turning position is located between the first high turning position OW1, OW1' inclusive and the second high turning position OW2, OW2' inclusive and the third low turning position is located between the first low turning position IW1, IW1' inclusive and the second low turning position IW2, IW2' inclusive.In the examples of Figures 3 to 5, the third high turning position corresponds to the second high turning position OW2, OW2' and the third low turning position corresponds to the second low turning position IW2, IW2'.

[0078] The speed of the wiping arm 7 during the additional cleaning cycle n2 can be adjusted to a second value higher than the first value, for example 40 cycles per minute.

[0079] The cleaning program also comprises at least one wiping cycle e1, e2 in which the wiper blade 3 is driven between a second upper turning position OW2, OW2' and a second lower turning position IW2, IW2'. At least one of the second upper turning position OW2, OW2' or the second lower turning position IW2, IW2' is offset from the first upper turning position OW1, OW1' or the first lower turning position IW1, IW1' respectively so that the surface wiped by the wiper blade 3 during the wiping cycle e1, e2 is less than the surface wiped by the wiper blade 3 during the cleaning cycle n1. In the examples of Figures 3 to 5, the number of wiping cycles is two but a different number of wiping cycles, for example 1 or 3 is also possible.

[0080] The speed of the wiping arm 7 during the wiping cycle(s) e1, e2 can be adjusted to the second value or even to a third value greater than the second value, for example 42 cycles per minute.

[0081] The upper and lower turning positions of the various cleaning, additional cleaning and wiping cycles as well as the speeds of movement of the wiper blade during these cycles can be chosen depending on the speed of the motor vehicle. A reduced or even zero speed allows turning positions further offset towards the outside of the wiping zone and lower speeds of movement of the wiper blade because the driver's visibility can be reduced for a longer period of time.

[0082] Such a control method allows effective cleaning of a surface such as a windshield 11 even in the presence of sludge because the cleaning cycle, due to its reduced speed and its high and / or low turnaround positions shifted outwards (greater wiping amplitude), allows the sludge to be pushed out of a central zone. In addition, the use of high and / or low turnaround positions shifted inwards (smaller wiping amplitude) for the additional cleaning cycle(s) or subsequent wiping cycles makes it possible not to re-spread the sludge in the central zone, which contributes to improving the quality of cleaning and therefore the visibility of the users. This therefore improves the comfort of the vehicle users as well as their safety.

[0083] According to another variant not illustrated, it is possible that the control method once the at least one cleaning cycle n1, n2 and the at least one wiping cycle e1, e2 have been carried out, the wiping device repeats the cleaning cycle or cycles and the wiping cycle or cycles. This makes it possible to maximize the cleaning efficiency in situations where the glass surface has particularly dense or stubborn dirt. Advantageously, the method marks a pause between the execution of the first and second sets of cleaning and wiping cycles, without the wiper descending beyond the position IW. This pause allows any residual washing liquid to flow down the glass surface, and therefore to avoid spreading dirt when a second set of washing and wiping cycles is carried out.

[0084] The stop time may vary but normally lasts only a few seconds, for example 3 to 5 seconds. Once all cycles have been completed, the wiper blade can be returned to the DPP stop position, as described above, and the wiping device switched off or returned to standby.

Claims

Cleaning device (1) for a motor vehicle comprising:- at least one wiper blade (3),- an electric motor (5) configured to drive the wiper blade (3) via a drive mechanism,- a device (9) for spraying a cleaning liquid,characterized in that the electric motor (5) is an electronized motor and in that in response to a cleaning command, the cleaning device (1) is configured to apply a cleaning program comprising a cleaning cycle (n1) with spraying of cleaning liquid and at least one subsequent wiping cycle (e1, e2) in which the sweeping amplitude of the wiper blade (3) during the cleaning cycle (n1) is greater than that of the at least one subsequent wiping cycle (e1, e2). Cleaning device (1) according to claim 1 wherein during the cleaning cycle (n1), the electric motor (5) is configured to drive the wiper blade (3) between a first high turning position (OW1, OW1') and a first low turning position (IW1, IW1') and wherein the projection device (9) is configured to project cleaning liquid during at least part of the cleaning cycle (n1) and wherein during the at least one wiping cycle, the electric motor (5) is configured to drive the wiper blade (3) between a second high turning position (OW2, OW2') and a second low turning position (IW2, IW2'), at least one of the second high turning position (OW2, OW2') or the second low turning position (IW2, IW2') is offset relative to the first high turning position respectively (OW1, OW1') or the first low turning position (IW1,IW1') so that the surface wiped by the wiper blade (3) during the wiping cycle (e1) is less than the surface wiped by the wiper blade (3) during the cleaning cycle (n1)., Cleaning device (1) according to claim 2 wherein in response to the cleaning command, the cleaning device (9) is also configured to apply, after the cleaning cycle (n1), an additional cleaning cycle (n2) in which the electric motor (5) is configured to drive the wiper blade (3) between a third high turning position and a third low turning position and in which the projection device is configured to project cleaning liquid during at least part of the additional cleaning cycle (n2), the third high turning position being located between the first high turning position (OW1, OW1') inclusive and the second high turning position (OW2, OW2') inclusive and the third low turning position being located between the first low turning position (IW1, IW1') inclusive and the second low turning position (IW2, IW2') inclusive. Cleaning device (1) according to one of claims 2 or 3 wherein the location of at least one of the first (OW1, OW1') and second (OW2, OW2') high turning positions are determined as a function of the speed of movement of the motor vehicle. Cleaning device (1) according to one of the preceding claims, wherein the electric motor (5) is configured to drive the wiper blade (3) at a first movement speed during the cleaning cycle (n1) and at a second movement speed, greater than the first movement speed, during the at least one wiping cycle (e1, e2). Cleaning device (1) according to claim 5 wherein the first movement speed is determined as a function of the movement speed of the motor vehicle. Cleaning device (1) according to claim 6 wherein the first speed of movement of the wiper blade (3) is all the lower the lower the speed of movement of the motor vehicle. Cleaning device (1) according to claim 7 wherein the first speed of movement of the wiper blade (3) is between 30 and 40 cycles per minute, in particular 35 cycles per minute when the speed of the vehicle is zero or lower than a predetermined speed. Cleaning device (1) according to one of claims 2 to 9 wherein the device (9) for projecting a cleaning liquid comprises at least one projection nozzle arranged on a wiping arm (7) or on the wiper blade (3) and configured to project cleaning liquid on the high side of the wiper blade (3), said device (9) for projecting a cleaning liquid being configured to project cleaning liquid via the at least one nozzle, during the cleaning cycle (n1) when the wiper blade (3) is moved from the first low turning position (IW1, IW1') to the first high turning position (OW1, OW1'). Motor vehicle comprising a cleaning device (1) according to one of the preceding claims. A method for controlling a cleaning device (1) comprising at least one wiper blade (3), wherein the cleaning comprises applying a cleaning cycle (n1) in which the wiper blade (3) is driven between a first upper turning position (OW1, OW1') and a first lower turning position (IW1, IW1') and in which cleaning liquid is sprayed onto the outer surface during at least a part of the cleaning cycle (n1) and at least one wiping cycle (e1, e2) in which the wiper blade (3) is driven between a second upper turning position (OW2, OW2') and a second lower turning position (IW2, IW2'), at least one of the second upper turning position (OW2, OW2') or the second lower turning position (IW2, IW2') is offset with respect to the first upper turning position (OW1, OW1') and the second lower turning position (IW2, IW2') respectively. the first high turning position (OW1, OW1') or the first low turning position (IW1,IW1') so that the surface wiped by the wiper blade (3) during the wiping cycle (e1, e2) is less than the surface wiped by the wiper blade (3) during the cleaning cycle (n1)., Control method according to the preceding claim also comprising the application, after the cleaning cycle (n1), of an additional cleaning cycle (n2) in which the wiper blade (3) is driven between a third high turning position and a third low turning position and in which cleaning liquid is sprayed onto the outer surface during at least part of the additional cleaning cycle (n2), the third high turning position being located between the first high turning position (OW1, OW1') inclusive and the second high turning position (OW2, OW2') inclusive and the third low turning position being located between the first low turning position (IW1, IW1') inclusive and the second low turning position (IW2, IW2') inclusive. Control method according to one of claims 11 or 12, wherein, once the at least one cleaning cycle (n1, n2) and the at least one wiping cycle (e1, e2) are carried out, the at least one cleaning cycle (n1, n2) and the at least one wiping cycle (n2) are repeated. Control method according to the preceding claim, in which the cleaning device (1) marks a stop time between the execution of the first set of cleaning (n1, n2) and wiping (e1, e2) cycles and the subsequent set of cleaning (n1, n2) and wiping (e1, e2) cycles.

Citation Information

Patent Citations

  • WINDOW CLEANING METHOD AND WIPER SYSTEM, PARTICULARLY FOR MOTOR VEHICLES

    FR2950588A1

  • VEHICLE WINDSHIELD WIPER INSTALLATION

    FR2950589A1

  • Wiper-washer control device

    US20170001602A1