EP4580918A1 - System zur reinigung einer optischen oberfläche - Google Patents

System zur reinigung einer optischen oberfläche

Info

Publication number
EP4580918A1
EP4580918A1 EP23761903.6A EP23761903A EP4580918A1 EP 4580918 A1 EP4580918 A1 EP 4580918A1 EP 23761903 A EP23761903 A EP 23761903A EP 4580918 A1 EP4580918 A1 EP 4580918A1
Authority
EP
European Patent Office
Prior art keywords
optical surface
nozzle
fluid
air
projection nozzle
Prior art date
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
EP23761903.6A
Other languages
English (en)
French (fr)
Inventor
Frederic Giraud
Jean Michel JARASSON
Frederic Bretagnol
Gerald Caillot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Systemes dEssuyage SAS
Original Assignee
Valeo Systemes dEssuyage SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Systemes dEssuyage SAS filed Critical Valeo Systemes dEssuyage SAS
Publication of EP4580918A1 publication Critical patent/EP4580918A1/de
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
    • B60S1/0833—Optical rain sensor
    • B60S1/0844—Optical rain sensor including a camera
    • B60S1/0848—Cleaning devices for cameras on vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/54—Cleaning windscreens, windows or optical devices using gas, e.g. hot air
    • B60S1/544—Cleaning windscreens, windows or optical devices using gas, e.g. hot air moving gas spreading means, e.g. arranged in wiper arms
    • B60S1/546—Cleaning windscreens, windows or optical devices using gas, e.g. hot air moving gas spreading means, e.g. arranged in wiper arms arranged in wiper blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/56—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens
    • B60S1/566—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens including wiping devices

Definitions

  • the present invention relates to a system for cleaning an optical surface of an optical device, which optical device is assembled with a vehicle window, in particular a windshield.
  • the compressor in particular of the electric type, is arranged to compress fluid, for example air, which is then brought to the projection nozzle.
  • the compressor is placed on a fixed support separate from the wiper blade.
  • the cleaning system comprises a compressed air tank supplied by compressed air coming from the compressor, and the projection nozzle is supplied by compressed air coming from this tank compressed air.
  • this tank which serves as a buffer tank, the invention makes it possible to have compressed air immediately available which can be brought very quickly to the projection nozzle.
  • the cleaning system comprises a valve, in particular a solenoid valve, arranged to, in the open position, allow compressed air to circulate from the tank towards the projection nozzle, and in the closed position, stop the circulation of compressed air from the tank to the projection nozzle.
  • a valve in particular a solenoid valve, arranged to, in the open position, allow compressed air to circulate from the tank towards the projection nozzle, and in the closed position, stop the circulation of compressed air from the tank to the projection nozzle.
  • this valve can be controlled with a very rapid reaction time, making it possible to deliver compressed air to the projection nozzle in a very short time.
  • the projection nozzle is connected to a reservoir of additional liquid, in particular a windshield washer fluid, so as to be able to be supplied, selectively, by this liquid alone, or by a mixture of this liquid and air, or by air alone.
  • additional liquid in particular a windshield washer fluid
  • the cleaning system comprises a pump arranged to deliver liquid from the liquid reservoir to the projection nozzle.
  • a liquid path coming from the liquid reservoir and an air path coming from the air reservoir join within a common pipe, upstream of the liquid projection nozzle. so that this projection nozzle can be selectively supplied with air and/or liquid.
  • a check valve is placed in the air path to prevent liquid from being forced back into the air reservoir.
  • a check valve is placed in the liquid path to prevent air from being forced back into the liquid reservoir.
  • the projection nozzle is placed at a distance from the ends of the broom, for example at a location of the broom which is further than 5% or more than 10% of the total length from its ends. get out.
  • the nozzle is made of plastic material.
  • the optical device is a camera, in particular an infrared camera, arranged to detect the presence of drops of water on the window, so as to trigger the operation of the wiper blade in the event of water drop detection.
  • the device for moving the air can be a fan, instead of the compressor.
  • This fan is notably with radial blades.
  • the invention also relates to an air projection nozzle arranged to be fixed on a wiping blade with a view to forming a cleaning system as described above.
  • the jet of fluid in particular air, is not ensured during the entire operating phase of the wiper blade, but only during a limited period of time during which the projection nozzle is located as close as possible to the optical surface to be cleaned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Cleaning In General (AREA)
EP23761903.6A 2022-08-31 2023-08-25 System zur reinigung einer optischen oberfläche Pending EP4580918A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2208718A FR3139088B1 (fr) 2022-08-31 2022-08-31 Système de nettoyage d’une surface optique
PCT/EP2023/073419 WO2024046921A1 (fr) 2022-08-31 2023-08-25 Système de nettoyage d'une surface optique

Publications (1)

Publication Number Publication Date
EP4580918A1 true EP4580918A1 (de) 2025-07-09

Family

ID=83690327

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23761903.6A Pending EP4580918A1 (de) 2022-08-31 2023-08-25 System zur reinigung einer optischen oberfläche

Country Status (5)

Country Link
US (1) US20260070515A1 (de)
EP (1) EP4580918A1 (de)
CN (1) CN119816434A (de)
FR (1) FR3139088B1 (de)
WO (1) WO2024046921A1 (de)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2991950B1 (fr) * 2012-06-13 2018-03-09 Valeo Systemes D'essuyage Balai d'essuyage comprenant un dispositif et un moyen de projection de liquide de lavage
FR2991948B1 (fr) * 2012-06-13 2015-06-05 Valeo Systemes Dessuyage Systeme d'essuyage et de lavage d'une vitre d'un vehicule
JP7047690B2 (ja) * 2018-09-25 2022-04-05 株式会社デンソー 車両用洗浄装置
DE102020204451A1 (de) * 2020-04-07 2021-10-07 Robert Bosch Gesellschaft mit beschränkter Haftung Wischblatt
KR20220080592A (ko) * 2020-12-07 2022-06-14 주식회사대성엘텍 와이퍼를 포함하는 차량 및 이를 제어하는 방법
US20220176915A1 (en) * 2020-12-08 2022-06-09 Valeo North America, Inc. Alternative windshield cleaning system

Also Published As

Publication number Publication date
FR3139088B1 (fr) 2024-11-29
FR3139088A1 (fr) 2024-03-01
CN119816434A (zh) 2025-04-11
US20260070515A1 (en) 2026-03-12
WO2024046921A1 (fr) 2024-03-07

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