DE102016218331A1 - Waschwasserdosiervorrichtung for a motor vehicle, hereby equipped cleaning system and hereby equipped motor vehicle - Google Patents

Waschwasserdosiervorrichtung for a motor vehicle, hereby equipped cleaning system and hereby equipped motor vehicle Download PDF

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Publication number
DE102016218331A1
DE102016218331A1 DE102016218331.1A DE102016218331A DE102016218331A1 DE 102016218331 A1 DE102016218331 A1 DE 102016218331A1 DE 102016218331 A DE102016218331 A DE 102016218331A DE 102016218331 A1 DE102016218331 A1 DE 102016218331A1
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DE
Germany
Prior art keywords
wash water
motor vehicle
washing water
cleaning
distribution
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Legal status (The legal status 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 status listed.)
Pending
Application number
DE102016218331.1A
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German (de)
Inventor
Michael Herzinger
Christopher Zerwas
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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.)
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Publication date
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Priority to DE102016218331.1A priority Critical patent/DE102016218331A1/en
Publication of DE102016218331A1 publication Critical patent/DE102016218331A1/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00Cleaning of vehicles
    • B60S1/02Cleaning windscreens, windows or optical devices
    • B60S1/46Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
    • B60S1/48Liquid supply therefor
    • B60S1/481Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00Cleaning of vehicles
    • B60S1/02Cleaning windscreens, windows or optical devices
    • B60S1/56Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens

Abstract

For the purpose of cleaning various sensors (55-2, 55-4, 55-6) provided on a motor vehicle (1), camera means (55-1, 55-3) or other components required for an automated or highly automated component, a washing water metering device ( 10) for the metered delivery of wash water (25), with a to a distribution means (40) connectable wash water inlet line (15) and a plurality of connectable to the distribution means (40) wash water output lines (45-1, 45-2, 45 -3, 45-4, 45-5, 45-6) arranged to be equipped with a plurality of washing water discharge means (50-1, 50-2, 50-3, 50-4, 50-5, 50 6), wherein the distribution means (40) is arranged, the wash water (25) present on the wash water inlet line (15) optionally to one, several or all wash water outlet lines (45-1, 45-2 , 45-3, 45-4, 45-5, 45-6).

Description

  • The present invention relates to a Waschwasserdosiervorrichtung for a motor vehicle according to claim 1, a cleaning system equipped therewith according to claim 6 and a correspondingly equipped motor vehicle according to claim 8.
  • It is well known to provide Waschwasserdosiervorrichtungen for metered delivery of wash water in motor vehicles, which serve for cleaning windshields or headlight glazing. However, the known devices are not adapted to further - especially for an automated or highly automated driving a motor vehicle - provided facilities or their sensors, such as camera or radar systems to clean directly or indirectly.
  • It is an object of the present invention to remedy this deficiency.
  • This object is achieved by Waschwasserdosiervorrichtung for metered delivery of wash water in a motor vehicle, with a connectable to a distribution means wash water inlet line and a plurality of connectable to the distribution means wash water outlet lines, which are arranged with a plurality of washing water dispensing means in fluid communication wherein the distribution means is adapted to selectively direct the wash water present at the input line to one, several or all output lines. Advantageously, it is possible with the device according to the invention to distribute wash water by means of a single distribution means and connected thereto wash water outlet lines to the various points of the motor vehicle, in particular required for automated or highly automated driving facilities, and output there by means of the wash water output means , The distribution means can also be connected in an advantageous manner to only a single provided in the motor vehicle control or regulating means, which reduces the cost of producing the Waschwasserdosiervorrichtung invention and their installation in the motor vehicle.
  • According to an advantageous embodiment of the Waschwasserdosiervorrichtung it is provided that the distribution means comprises a first part which is connectable to the wash water inlet line and comprises a wash water inlet opening, and a second part which is connectable to the wash water outlet lines and corresponding wash water outlet openings comprising, wherein the first part and the second part for guiding the washing water by means of a drive means are formed movable against each other such that the wash water inlet opening corresponds to at least one wash water outlet opening. As a result, an easy to be realized structure of the Waschwasserdosiervorrichtung invention and their reliable and reliable function are created.
  • This is even more true if the first part or the second part are designed as a solenoid valve, slide or rotary valve.
  • The Waschwasserdosiervorrichtung may in principle consist of any suitable material, in particular a plastic, a steel alloy or aluminum alloy, with optionally a first and the second part against each other fluid-tight sealant is provided. A particularly good sealing effect combined with a long service life of the washing water metering device is advantageously provided if the first part and the second part have a coating of Al 2 O 3 , ZrO 2 , Si 3 N 4 , SiC, and / or on their respective adjacent surfaces SiSiC, or consist of Al 2 O 3 , ZrO 2 , Si 3 N 4 , SiC, and / or SiSiC exist. In such a case may, but need not, be dispensed with an additional sealant.
  • In the event that no mutually movable first and second parts are to be provided, it is provided according to a preferred embodiment that with each washing water output means, a valve means is fluidly connected. Also, this structure is simple and inexpensive to implement; the other advantages mentioned above apply adequately.
  • The object of the invention is also provided by a cleaning system for a motor vehicle, which includes a washing water device of the type disclosed above, wherein a pump connected to a wash water tank is fluidly connected to the wash water inlet line. In principle, the number of pumps used can be freely selected. In a particularly advantageous manner, the cleaning system according to the invention has only a single pump, which is associated with a reduced space requirement, lower costs and not least less effort for its installation.
  • According to a preferred embodiment, the cleaning system according to the invention is characterized in that the pump is operatively connected to a control means for controlling the volume flow conveyed by the pump and / or the pressure of the washing water. A such control is possible in a simple manner, in particular by means of pulse width modulation known per se.
  • The above object is also solved by a motor vehicle having a cleaning system of the kind previously disclosed. The advantages mentioned above apply adequately.
  • According to a preferred embodiment of the motor vehicle according to the invention, it is provided that the washing water dispensing means have nozzles which are adapted to deliver washing water to a front window located on the motor vehicle and / or a headlight glazing and / or a radar and / or camera means and / or a sensor means ,
  • A detailed, non-prejudicial, in particular limiting, description of an embodiment of the present invention will be made below with reference to the accompanying drawings.
  • 1 is a symbolic representation of a motor vehicle according to the invention shown in side view with a symbolically illustrated cleaning system according to the invention, which has a symbolically illustrated Waschwasserdosiervorrichtung invention.
  • 2 is a functional representation of a first embodiment of a Waschwasserdosiervorrichtung.
  • 3 is a functional representation of a second embodiment of a Waschwasserdosiervorrichtung.
  • 4 is a functional representation of a third embodiment of a Waschwasserdosiervorrichtung.
  • The following is with reference to 1 to 4 a detailed, non-prejudicial, in particular limiting, description of an embodiment of the present invention. Identical elements are provided with identical reference numerals, unless stated otherwise.
  • In 1 is a motor vehicle according to the invention 1 symbolically represented, in which a symbolically illustrated inventive cleaning system 5 located, which is a symbolically illustrated Waschwasserdosiervorrichtung invention 10 having.
  • The washing water metering device 10 is with a wash water inlet pipe 15 fluidly connected by in a tank 20 washing water 25 by means of one of a control means 30 controlled pump 35 in the cleaning system 5 fed and distributed. The washing water 25 may be a per se known demineralized or non-demineralized water with or without detergent additives, especially surfactants, and / or antifreeze. The distribution of wash water 25 takes place, also by the control means 30 controlled, to those points in the motor vehicle 1 that are to be cleaned.
  • This is in the Waschwasserdosiervorrichtung 10 a distributor 40 provided in fluid communication with a majority, in this embodiment six, wash water output lines 45-1, 45-2, 45-3, 45-4, 45-5 and 45-6 (hereinafter also referred to as output lines alone), stands. The first output pipe 45-1 is connected to a first washing water discharge means 50-1 with the washing water 25 to a in the rear region H of the motor vehicle 1 located camera means 55-1 can be output. The second output line 45-2 is connected to a second washing water discharge means 50-2, with the washing water 25 to a in the rear region H of the motor vehicle 1 located sensor means 55-2 can be output. The third output pipe 45-3 is connected to a third washing water discharge means 50-3, with the washing water 25 to a front F of the motor vehicle 1 located camera means 55-3 can be output. The fourth output pipe 45-4 is connected to a fourth washing water discharge means 50-4 with the washing water 25 to a front F of the motor vehicle 1 located sensor means 55-4 can be output. The fifth output pipe 45-5 is connected to a fifth washing water discharge means 50-5, with the washing water 25 to one in the front region F of the motor vehicle 1 located front headlight glazing 55-5 can be output. The sixth output line 45-6 is connected to a sixth washing water discharge means 50-6, with the washing water 25 to a front F of the motor vehicle 1 located sensor means 55-6 can be output. The respective washing water dispensing means 50-1 to 50-6 are formed as nozzles in the embodiment shown. It is understood that the number and location of the respective wash water dispensing means 50-1 to 50-6 may differ from the embodiment shown herein without departing from the disclosed invention.
  • According to the invention it is provided that in the input line 15 upcoming wash water 25 by means of the distribution means 40 optionally to one, to several or to all output lines 45-1 to 45-6.
  • Preferably, a method for operating the cleaning system according to the invention comprises 5 following steps:
    • 1. Check if there is a cleaning request signal. Such a signal can be either by one in the motor vehicle 1 in particular, the presence or absence of contamination of a sensor means 55-2, 55-4 or 55-6, a camera means 55-1 or 55-3 and / or the front headlight glazing 55-5 detects.
    • 2. When a cleaning request signal is present, determine which wash water dispensing means 50-1 to 50-6 the dirty sensor means 55-2, 55-4 and 55-6, the camera means 55-1 and 55-3 and / or the front headlight glazing 55-5 is closest or which wash water dispensing means 50-1 to 50-6 is to be put into operation.
    • 3. Commissioning the pump 35 for pumping the wash water 25 through the wash water inlet pipe 15 from the tank 20 ,
    • 4. Set up the distributor 40 such that the pump 35 wash water 25 to the wash water dispensing means 50-1 to 50-6 closest to the dirty sensor means 55-2, 55-4 and 55-6, the camera means 55-1 and 55-3 and / or the headlight glazing 55-5, respectively or which is to be put into operation promotes.
    • 5. Check if there is a cleaning stop signal. Such a signal can either by the in the motor vehicle 1 In particular, the presence or absence of contamination of a sensor means 55-2, 55-4 or 55-6, a camera means 55-1 and 55, respectively, are outputted, not shown here, or by the soiling sensor means also not shown here -3 and / or the front headlight glazing 55-5 detects.
    • 6. If there is a cleaning stop signal, stop the pump 35 ,
  • It is understood that the aforementioned steps can be repeated as desired, in particular at predefined times, in whole or in part. Moreover, it should be understood that simultaneous cleaning of at least two sensor means 55-2, 55-4 and 55-6, respectively, is enabled by the previously disclosed method.
  • In 2 is now a first embodiment of a Waschwasserdosiervorrichtung 10 shown symbolically and in partial exploded view.
  • The washing water metering device 10 indicates a from a first part 60 and a second part adjacent thereto 65 existing distributor 40 on. The first part 60 has a single wash water inlet opening 70 on, to which the here shown symbolically input line 15 by means of a known, not shown, connecting means, for example a fluid coupling, is connected. The second part 65 has juxtaposed and spaced washing water outlet openings 75-1 to 75-6 (only four of which are shown for reasons of clarity) on which at one end the respective output lines 45-1 to 45-6 by means not shown here connecting means, such as fluid couplings , are connected. The respective wash water inlet opening 70 and wash water outlet openings 75-1 to 75-6 extend over the entire depth of the first part 60 or second part 65 and may be formed in particular as through-holes.
  • In the event that washing water 25 from the tank 20 is to be conveyed to one, several or all output lines 45-1 to 45-6, becomes the first part 60 by means of a drive means symbolically represented here 80 transversely so moved that the wash water inlet opening 70 via an inlet 80-1 to 80-6 of the wash water outlet opening 75-1 to 75-6 is substantially congruent to come through the wash water 25 to transport. The overlay of wash water inlet opening 70 and respective input 85-1 to 85-6 takes place as long as washing water 25 to be conveyed in the direction of wash water dispensing means 50-1 to 50-6. The duration of the overlay or its frequency determines the time and duration of the delivery of the wash water 25 ,
  • 2 it was evident that the first part 60 as a transversely moving slider is formed. Opposite is in 3 an alternative embodiment of the Waschwasserdosiervorrichtung 10 shown in schematic, partially exploded view, in which the first part 60 is designed as a rotary valve, the opposite to the second part 65 by means of a drive means 80 is formed about a common axis of rotation D rotatable. The washing water metering device 10 In this embodiment, four washing water outlet openings 75-1 to 75-4, to which corresponding output lines 45-1 to 45-4 can be fluidly connected by means not shown coupling means. In addition to referring to 2 explained washing water inlet opening 70 indicates the first part 60 another wash water inlet opening 90 on, to which the input line 15 , a corresponding rotation of the first part 60 provided that it can be connected. While the former wash water inlet opening 70 has a circular cross-section, is the last-mentioned wash water inlet opening 95 designed as a slot. This makes it possible in a simple way that two - depending on the design of the elongated hole also more - inputs 85-1 to 85-4 simultaneously in fluid communication with the inlet tube 15 kick, leaving the tank 20 promoted wash water 25 to a corresponding number of wash water dispensing means 50-1 to 50-4 can be conveyed in parallel.
  • In 4 is another embodiment of a Waschwasserdosiervorrichtung 10 partially shown in exploded view, where a single input line 15 to a first part 60 connected. The first part 60 is in this case substantially cuboid and as a part of the wash water 25 receiving tank formed, fixed to the second part 65 connected is. This is opened opposite the inputs 85-1 to 85-6. In the inputs 85-1 to 85-6 are each valve means 95-1 to 95-6, via the control means 30 can be opened or closed.
  • It should be noted that the control means 30 as a separate component in a known on-board electronics of the motor vehicle 1 or may be formed integrally therewith. It is also possible to use the washing water metering device 10 to be provided with or connected to a heat generator (not shown), for example an electric coil, in order to communicate with it through the wash water dispensing means 50-1, 50-2, 50-3, 50-4, 50-5, 50-5. 6 wash water to be dispensed 25 to heat for the purpose of an improved cleaning effect.
  • It should be noted that the drive means 80 not just the first part 60 but alternatively or cumulatively with the second part 65 can be operatively connected. In addition, it is possible to use more than one drive 80 provided.
  • LIST OF REFERENCE NUMBERS
  • 1
    motor vehicle
    5
    cleaning system
    10
    Waschwasserdosiervorrichtung
    15
    Wash water input line
    20
    tank
    25
    wash water
    30
    control means
    35
    pump
    40
    distribution means
    45-1
    Wash water output line
    45-2
    Wash water output line
    45-3
    Wash water output line
    45-4
    Wash water output line
    45-5
    Wash water output line
    45-6
    Wash water output line
    50-1
    Wash water output means
    50-2
    Wash water output means
    50-3
    Wash water output means
    50-4
    Wash water output means
    50-5
    Wash water output means
    50-6
    Wash water output means
    55-1
    camera means
    55-2
    sensor means
    55-3
    camera means
    55-4
    sensor means
    55-5
    Headlight glass
    55-6
    sensor means
    60
    first part
    65
    second part
    70
    Wash water inlet opening
    75-1
    Washing water exit port
    75-2
    Washing water exit port
    75-3
    Washing water exit port
    75-6
    Washing water exit port
    80
    drive means
    85-1
    entrance
    85-2
    entrance
    85-3
    entrance
    85-6
    entrance
    90
    Wash water inlet opening
    95-1
    valve means
    95-2
    valve means
    95-3
    valve means
    95-4
    valve means
    D
    axis of rotation
    F
    front area
    H
    rear area

Claims (9)

  1. Wash water metering device ( 10 ) for the metered delivery of wash water ( 25 ) in a motor vehicle ( 1 ), with one at a distribution means ( 40 ) connectable wash water inlet line ( 15 ) and a plurality of at the distribution means ( 40 ) connectable wash water outlet pipes (45-1, 45-2, 45-3, 45-4, 45-5, 45-6) which are arranged with a plurality of washing water discharge means (50-1, 50-2 , 50-3, 50-4, 50-5, 50-6) in fluid communication with the distribution means ( 40 ) located at the wash water inlet line ( 15 ) upcoming washing water ( 25 ) optionally to one, several or all wash water outlet conduits (45-1, 45-2, 45-3, 45-4, 45-5, 45-6).
  2. Wash water metering device ( 10 ) according to claim 1, characterized in that the distribution means ( 40 ) a first part ( 60 ), which communicates with the wash water inlet line ( 15 ) is connectable and a wash water inlet opening ( 70 ) and a second part ( 65 ) connectable to the wash water exit conduits (45-1, 45-2, 45-3, 45-4, 45-5, 45-6) and corresponding wash water exit ports (75-1, 75-2, 75 -3, 75-6), the first part ( 60 ) and the second part ( 65 ) for the administration of the washing water ( 25 ) by means of a drive means ( 80 ) are formed so movable against each other, that the wash water inlet opening ( 70 ) corresponds to at least one wash water exit port (75-1, 75-2, 75-3, 75-6).
  3. Wash water metering device ( 10 ) according to claim 2, characterized in that the first part ( 60 ) or the second part ( 65 ) are designed as a solenoid valve, slide or rotary valve.
  4. Wash water metering device ( 10 ) according to claim 2 or 3, characterized in that the first part ( 60 ) and the second part ( 65 ) have on their respective adjacent surfaces a coating of Al 2 O 3 , ZrO 2 , Si 3 N 4 , SiC, and / or SiSiC, or of Al 2 O 3 , ZrO 2 , Si 3 N 4 , SiC, and / or SiSiC exist.
  5. Wash water metering device ( 10 ) according to claim 1, characterized in that with each washing water outlet opening (75-1, 75-2, 75-3, 75-6) a valve means (95-1, 95-2, 95-3, 95-6) is fluidically connected.
  6. Cleaning system ( 5 ) for a motor vehicle ( 1 ), characterized by a washing water device ( 10 ) according to one of the preceding claims, wherein one on a washing water tank ( 20 ) connected pump ( 35 ) fluidly with the wash water inlet line ( 15 ) connected is.
  7. Cleaning system ( 5 ) according to claim 6, characterized in that the pump ( 35 ) with a control means ( 30 ) for controlling by the pump ( 35 ) conveyed volume flow and / or the pressure of the wash water ( 25 ) is operatively connected.
  8. Motor vehicle ( 1 ), characterized by a cleaning system ( 5 ) according to claim 6 or 7.
  9. Motor vehicle ( 1 ) according to claim 8, characterized in that the washing water dispensing means (50-1, 50-2, 50-3, 50-4, 50-5, 50-6) comprise nozzles which are adapted to wash water ( 25 ) to one on the motor vehicle ( 1 ) and / or a headlight glazing (55-5) and / or a radar means and / or camera means (55-1, 55-3) and / or a sensor means (55-2, 55-4, 55-6) ,
DE102016218331.1A 2016-09-23 2016-09-23 Waschwasserdosiervorrichtung for a motor vehicle, hereby equipped cleaning system and hereby equipped motor vehicle Pending DE102016218331A1 (en)

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DE102016218331.1A DE102016218331A1 (en) 2016-09-23 2016-09-23 Waschwasserdosiervorrichtung for a motor vehicle, hereby equipped cleaning system and hereby equipped motor vehicle

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Application Number Priority Date Filing Date Title
DE102016218331.1A DE102016218331A1 (en) 2016-09-23 2016-09-23 Waschwasserdosiervorrichtung for a motor vehicle, hereby equipped cleaning system and hereby equipped motor vehicle

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019207002A1 (en) * 2018-04-25 2019-10-31 Bayerische Motoren Werke Aktiengesellschaft Cleaning of environment sensors of a motor vehicle
FR3089273A1 (en) 2018-11-29 2020-06-05 Akwel Modular needle valve
FR3097826A1 (en) * 2019-06-28 2021-01-01 Valeo Systèmes D’Essuyage Device and method for cleaning a plurality of sensors / transmitters of a motor vehicle

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7106520U (en) 1971-02-20 1971-05-19 Swf Rau G Gmbh Windshield washer for vehicles, especially for motor vehicles
DE2108229C3 (en) 1971-02-20 1975-12-11 Swf-Spezialfabrik Fuer Autozubehoer Gustav Rau Gmbh, 7120 Bietigheim
DE3916337A1 (en) 1989-03-16 1990-10-04 Uwe Schmitt Rapid response heating system for vehicle - involves insulation of heat exchanger on exhaust pipe
DE19854127A1 (en) 1998-11-24 2000-05-31 Mannesmann Vdo Ag Cleaning system for motor vehicle screen has nozzle bodies mutually independently controllable depending on speed of vehicle to deliver fluid to same area of screen
DE10030604A1 (en) 2000-06-21 2002-01-03 Mannesmann Vdo Ag Side channel pump
DE10115975A1 (en) 2001-03-30 2002-10-10 Volkswagen Ag Controlling cleaning nozzles for the front windscreen and/or headlamp glasses of a motor vehicle, involves using different operating parameters between driver's side and passenger's side cleaning nozzles
US20040050432A1 (en) 2002-09-10 2004-03-18 Silvano Breda Multiport diverter valve
DE102006061817A1 (en) 2006-12-21 2008-06-26 Mann + Hummel Gmbh Windscreen cleaning device in motor vehicles
EP3153361A1 (en) 2015-10-05 2017-04-12 Helbako GmbH Method and device for distributing wash water in a vehicle

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7106520U (en) 1971-02-20 1971-05-19 Swf Rau G Gmbh Windshield washer for vehicles, especially for motor vehicles
DE2108229C3 (en) 1971-02-20 1975-12-11 Swf-Spezialfabrik Fuer Autozubehoer Gustav Rau Gmbh, 7120 Bietigheim
DE3916337A1 (en) 1989-03-16 1990-10-04 Uwe Schmitt Rapid response heating system for vehicle - involves insulation of heat exchanger on exhaust pipe
DE19854127A1 (en) 1998-11-24 2000-05-31 Mannesmann Vdo Ag Cleaning system for motor vehicle screen has nozzle bodies mutually independently controllable depending on speed of vehicle to deliver fluid to same area of screen
DE10030604A1 (en) 2000-06-21 2002-01-03 Mannesmann Vdo Ag Side channel pump
DE10115975A1 (en) 2001-03-30 2002-10-10 Volkswagen Ag Controlling cleaning nozzles for the front windscreen and/or headlamp glasses of a motor vehicle, involves using different operating parameters between driver's side and passenger's side cleaning nozzles
US20040050432A1 (en) 2002-09-10 2004-03-18 Silvano Breda Multiport diverter valve
DE102006061817A1 (en) 2006-12-21 2008-06-26 Mann + Hummel Gmbh Windscreen cleaning device in motor vehicles
EP3153361A1 (en) 2015-10-05 2017-04-12 Helbako GmbH Method and device for distributing wash water in a vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019207002A1 (en) * 2018-04-25 2019-10-31 Bayerische Motoren Werke Aktiengesellschaft Cleaning of environment sensors of a motor vehicle
FR3089273A1 (en) 2018-11-29 2020-06-05 Akwel Modular needle valve
FR3097826A1 (en) * 2019-06-28 2021-01-01 Valeo Systèmes D’Essuyage Device and method for cleaning a plurality of sensors / transmitters of a motor vehicle

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