FR3119336A1 - Control method for cleaning a motor vehicle sensor - Google Patents

Control method for cleaning a motor vehicle sensor Download PDF

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Publication number
FR3119336A1
FR3119336A1 FR2100977A FR2100977A FR3119336A1 FR 3119336 A1 FR3119336 A1 FR 3119336A1 FR 2100977 A FR2100977 A FR 2100977A FR 2100977 A FR2100977 A FR 2100977A FR 3119336 A1 FR3119336 A1 FR 3119336A1
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FR
France
Prior art keywords
pressure source
solenoid valve
liquid fluid
opening
closing
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
FR2100977A
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French (fr)
Inventor
Maxime Baudouin
Theophile Jullien
Denis Thebault
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.)
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Publication date
Application filed by Valeo Systemes dEssuyage SAS filed Critical Valeo Systemes dEssuyage SAS
Priority to FR2100977A priority Critical patent/FR3119336A1/en
Publication of FR3119336A1 publication Critical patent/FR3119336A1/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B05B9/0423—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material for supplying liquid or other fluent material to several spraying apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
    • B60S1/48—Liquid supply therefor
    • B60S1/481—Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means
    • 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

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

Abstract

L’invention concerne un procédé de pilotage d’un système hydraulique de circulation d’un fluide liquide, ledit système comprenant au moins une source de pression, de préférence une pompe hydraulique, de mise en circulation du fluide liquide, un moyen de pulvérisation du fluide liquide et une électrovanne d’ouverture et de fermeture du moyen de pulvérisation, le moyen de pulvérisation étant destiné à pulvériser le fluide liquide sur une surface vitrée d’un capteur pour un véhicule automobile, le procédé de pilotage (10) comprenant :- une étape (11) d’activation de la source de pression, et- une étape (12) d’ouverture de l’électrovanne,l’étape (12) d’ouverture de l’électrovanne étant ultérieure à l’étape d’activation de la source de pression. Figure de l’abrégé : Figure 2The invention relates to a method for controlling a hydraulic system for circulating a liquid fluid, said system comprising at least one pressure source, preferably a hydraulic pump, for circulating the liquid fluid, a means for spraying the liquid fluid and a solenoid valve for opening and closing the spray means, the spray means being intended to spray the liquid fluid onto a glazed surface of a sensor for a motor vehicle, the control method (10) comprising:- a step (11) of activating the pressure source, and- a step (12) of opening the solenoid valve, the step (12) of opening the solenoid valve being subsequent to the step of activation of the pressure source. Abstract Figure: Figure 2

Description

Procédé de pilotage pour nettoyage d’un capteur de véhicule automobileControl method for cleaning a motor vehicle sensor

L’invention concerne un procédé de pilotage d’un système hydraulique pour le nettoyage d’un capteur de véhicule automobile.The invention relates to a method for controlling a hydraulic system for cleaning a motor vehicle sensor.

De nos jours, les véhicules automobiles sont équipés d’une multitude de capteurs, parmi lesquels des capteurs d’images pour l’aide à la conduite et au stationnement. Ces capteurs contribuent grandement à augmenter la sécurité routière et il faut s’assurer bien entendu qu’ils soient toujours en état optimal de fonctionnement. C’est d’autant plus le cas pour les véhicules autonomes de niveaux supérieurs, dans lesquels les données des capteurs d’image sont essentielles au bon guidage sur les voies de circulation. Des procédés de nettoyage sont ainsi mis en œuvre par un système hydraulique pour éliminer toute trace de pluie, boue ou autre composé susceptible de se coller aux surfaces vitrées des capteurs.Nowadays, motor vehicles are equipped with a multitude of sensors, including image sensors for driving and parking assistance. These sensors greatly contribute to increasing road safety and it must of course be ensured that they are always in optimal working order. This is all the more the case for higher-level autonomous vehicles, in which data from image sensors is essential for proper guidance on traffic lanes. Cleaning processes are thus implemented by a hydraulic system to eliminate any trace of rain, mud or other compound likely to stick to the glass surfaces of the sensors.

RésuméSummary

La présente divulgation cherche à optimiser le pilotage d’un tel système hydraulique pour assurer le nettoyage le plus efficace possible des surfaces vitrées de capteurs.The present disclosure seeks to optimize the control of such a hydraulic system to ensure the most effective cleaning possible of the glass surfaces of sensors.

A cet effet, il est proposé un procédé de pilotage d’un système hydraulique de circulation d’un fluide liquide, ledit système comprenant au moins une source de pression de mise en circulation du fluide liquide, de préférence une pompe hydraulique, un moyen de pulvérisation du fluide liquide et une électrovanne d’ouverture et de fermeture du moyen de pulvérisation, le moyen de pulvérisation étant destiné à pulvériser le fluide liquide sur une surface vitrée d’un capteur de véhicule automobile, le procédé de pilotage comprenant :
- une étape d’activation de la source de pression, et
- une étape d’ouverture de l’électrovanne,
l’étape d’ouverture de l’électrovanne étant ultérieure à l’étape d’activation de la source de pression.To this end, there is proposed a method for controlling a hydraulic system for circulating a liquid fluid, said system comprising at least one source of pressure for circulating the liquid fluid, preferably a hydraulic pump, a means of spraying of the liquid fluid and a solenoid valve for opening and closing the spraying means, the spraying means being intended to spray the liquid fluid on a glazed surface of a motor vehicle sensor, the control method comprising:
- a pressure source activation step, and
- a solenoid valve opening step,
the step of opening the solenoid valve being subsequent to the step of activating the pressure source.

Ainsi, grâce au procédé selon la présente invention, on s’assure que la pression du fluide liquide pulvérisé par le système hydraulique est suffisamment élevée, même en début de nettoyage, ce qui permet concomitamment de réduire la durée de pulvérisation, et de faire une économie de fluide liquide nécessaire.Thus, thanks to the method according to the present invention, it is ensured that the pressure of the liquid fluid sprayed by the hydraulic system is sufficiently high, even at the start of cleaning, which concomitantly makes it possible to reduce the spraying time, and to make a liquid fluid saving needed.

Selon un autre aspect, l’étape d’ouverture de l’électrovanne débute entre 10 ms et 1 s après l’étape d’activation de la source de pression.According to another aspect, the step of opening the solenoid valve begins between 10 ms and 1 s after the step of activating the pressure source.

Selon un autre aspect, l’étape d’ouverture de l’électrovanne débute entre 20ms et 200ms après l’étape d’activation de la source de pression.According to another aspect, the step of opening the solenoid valve begins between 20 ms and 200 ms after the step of activating the pressure source.

Selon un autre aspect, le procédé comprend une étape de désactivation de la source de pression et une étape de fermeture de l’électrovanne, l’étape de fermeture de l’électrovanne étant ultérieure à l’étape de désactivation de la source de pression.According to another aspect, the method comprises a step of deactivating the pressure source and a step of closing the solenoid valve, the step of closing the solenoid valve being subsequent to the step of deactivating the pressure source.

Selon un autre aspect, l’étape de fermeture de l’électrovanne débute entre 10 ms et 1 s après l’étape de désactivation de la source de pression.According to another aspect, the step of closing the solenoid valve begins between 10 ms and 1 s after the step of deactivating the pressure source.

Selon un autre aspect, l’étape de fermeture de l’électrovanne débute entre 20 ms et 200 ms après l’étape de désactivation de la source de pression.According to another aspect, the step of closing the solenoid valve begins between 20 ms and 200 ms after the step of deactivating the pressure source.

Selon un autre aspect, l’invention a pour objet un dispositif de nettoyage d’une surface vitrée d’un capteur pour un véhicule automobile, comportant un système hydraulique de circulation d’un fluide liquide, ledit système comprenant au moins une source de pression de mise en circulation dudit fluide liquide, un moyen de pulvérisation du fluide liquide destiné à pulvériser le fluide liquide sur la surface vitrée du capteur et une électrovanne d’ouverture et de fermeture du moyen de pulvérisation, le dispositif de nettoyage comprenant une unité de contrôle électronique configurée pour activer et désactiver la source de pression, et ouvrir et fermer l’électrovanne, de sorte que l’ouverture de l’électrovanne est ultérieure à l’activation de la source de pression et/ou la fermeture de l’électrovanne est ultérieure à la désactivation de la source de pression.According to another aspect, the subject of the invention is a device for cleaning a glazed surface of a sensor for a motor vehicle, comprising a hydraulic system for circulating a liquid fluid, said system comprising at least one pressure source for circulating said liquid fluid, a means for spraying the liquid fluid intended to spray the liquid fluid on the glazed surface of the sensor and a solenoid valve for opening and closing the spray means, the cleaning device comprising a control unit electronics configured to activate and deactivate the pressure source, and open and close the solenoid valve, such that the opening of the solenoid valve is subsequent to the activation of the pressure source and/or the closing of the solenoid valve is subsequent to deactivation of the pressure source.

Selon un autre aspect, la source de pression est une pompe hydraulique.In another aspect, the pressure source is a hydraulic pump.

Selon un autre aspect, il est proposé un programme informatique comportant des instructions pour la mise en œuvre de tout ou partie du procédé de pilotage tel que défini précédemment lorsque ce programme est exécuté par un processeur. Selon un autre aspect, il est proposé un support d’enregistrement non transitoire, lisible par un ordinateur, sur lequel est enregistré un tel programme.According to another aspect, a computer program is proposed comprising instructions for implementing all or part of the control method as defined above when this program is executed by a processor. In another aspect, there is provided a non-transitory, computer-readable recording medium on which such a program is recorded.

D’autres caractéristiques, détails et avantages apparaîtront à la lecture de la description détaillée ci-après, et à l’analyse des dessins annexés, sur lesquels :Other characteristics, details and advantages will appear on reading the detailed description below, and on analyzing the appended drawings, in which:

Fig. 1Fig. 1

illustre un système hydraulique selon la présente invention. illustrates a hydraulic system according to the present invention.

Fig. 2Fig. 2

illustre un ordinogramme d’un procédé de pilotage selon la présente invention mis en œuvre par le système de la . illustrates a flowchart of a control method according to the present invention implemented by the system of the .

Fig. 3Fig. 3

illustre un chronogramme du procédé de la . illustrates a chronogram of the process of the .

Claims (10)

Procédé de pilotage d’un système hydraulique (1) de circulation d’un fluide liquide, ledit système (1) comprenant au moins une source de pression (2) de mise en circulation du fluide liquide, de préférence une pompe hydraulique, un moyen de pulvérisation (4) du fluide liquide et une électrovanne (3) d’ouverture et de fermeture du moyen de pulvérisation (4), le moyen de pulvérisation (4) étant destiné à pulvériser le fluide liquide sur une surface vitrée d’un capteur (8) pour un véhicule automobile, le procédé de pilotage (10) comprenant :
- une étape (11) d’activation de la source de pression (2), et
- une étape (12) d’ouverture de l’électrovanne (3),
l’étape (12) d’ouverture de l’électrovanne (3) étant ultérieure à l’étape (11) d’activation de la source de pression (2).Method for controlling a hydraulic system (1) for circulating a liquid fluid, said system (1) comprising at least one pressure source (2) for circulating the liquid fluid, preferably a hydraulic pump, a means for spraying (4) the liquid fluid and a solenoid valve (3) for opening and closing the spraying means (4), the spraying means (4) being intended to spray the liquid fluid onto a glazed surface of a sensor (8) for a motor vehicle, the steering method (10) comprising:
- a step (11) for activating the pressure source (2), and
- a step (12) for opening the solenoid valve (3),
the step (12) of opening the solenoid valve (3) being subsequent to the step (11) of activating the pressure source (2). Procédé de pilotage selon la revendication 1, dans lequel l’étape (12) d’ouverture de l’électrovanne (3) débute entre 10 ms et 1 s après l’étape (11) d’activation de la source de pression (2).Control method according to claim 1, in which the step (12) of opening the solenoid valve (3) begins between 10 ms and 1 s after the step (11) of activating the pressure source (2 ). Procédé de pilotage selon la revendication précédente, dans lequel l’étape (12) d’ouverture de l’électrovanne débute entre 20ms et 200ms après l’étape d’activation (11) de la source de pression (2).Control method according to the preceding claim, in which the step (12) of opening the solenoid valve begins between 20 ms and 200 ms after the step of activating (11) the pressure source (2). Procédé de pilotage selon l’une des revendications précédentes, comprenant une étape (13) de désactivation de la source de pression (2) et une étape (14) de fermeture de l’électrovanne (3), l’étape (14) de fermeture de l’électrovanne (3) étant ultérieure à l’étape (13) de désactivation de la source de pression (2).Control method according to one of the preceding claims, comprising a step (13) of deactivating the pressure source (2) and a step (14) of closing the solenoid valve (3), the step (14) of closing of the solenoid valve (3) being subsequent to step (13) of deactivating the pressure source (2). Procédé de pilotage selon la revendication précédente, dans lequel l’étape (14) de fermeture de l’électrovanne (3) débute entre 10 ms et 1 s après l’étape (13) de désactivation de la source de pression (2).Control method according to the preceding claim, in which the step (14) of closing the solenoid valve (3) begins between 10 ms and 1 s after the step (13) of deactivating the pressure source (2). Procédé de pilotage selon la revendication précédente, dans lequel l’étape (14) de fermeture de l’électrovanne (3) débute entre 20 ms et 200 ms après l’étape (13) de désactivation de la source de pression (2).Control method according to the preceding claim, in which the step (14) of closing the solenoid valve (3) begins between 20 ms and 200 ms after the step (13) of deactivating the pressure source (2). Dispositif de nettoyage d’une surface vitrée d’un capteur (8) pour un véhicule automobile, comportant un système hydraulique (1) de circulation d’un fluide liquide, ledit système (1) comprenant au moins une source de pression (2) de mise en circulation dudit fluide liquide, un moyen de pulvérisation (4) du fluide liquide destiné à pulvériser le fluide liquide sur la surface vitrée du capteur (8) et une électrovanne (3) d’ouverture et de fermeture du moyen de pulvérisation (4), le dispositif de nettoyage comprenant une unité de contrôle électronique configurée pour activer et désactiver la source de pression (2), et ouvrir et fermer l’électrovanne (3), de sorte que l’ouverture de l’électrovanne (3) est ultérieure à l’activation de la source de pression (2) et/ou la fermeture de l’électrovanne (3) est ultérieure à la désactivation de la source de pression (2).Device for cleaning a glazed surface of a sensor (8) for a motor vehicle, comprising a hydraulic system (1) for circulating a liquid fluid, said system (1) comprising at least one pressure source (2) for circulating said liquid fluid, means (4) for spraying the liquid fluid intended to spray the liquid fluid on the glazed surface of the sensor (8) and a solenoid valve (3) for opening and closing the spray means ( 4), the cleaning device comprising an electronic control unit configured to activate and deactivate the pressure source (2), and to open and close the solenoid valve (3), so that the opening of the solenoid valve (3) is subsequent to the activation of the pressure source (2) and/or the closing of the solenoid valve (3) is subsequent to the deactivation of the pressure source (2). Dispositif de nettoyage selon la revendication 7, dans lequel la source de pression est une pompe hydraulique (2).A cleaning device according to claim 7, wherein the pressure source is a hydraulic pump (2). Programme informatique comportant des instructions pour la mise en œuvre du procédé de pilotage selon l’une des revendications 1 à 6.Computer program comprising instructions for implementing the control method according to one of Claims 1 to 6. Support d’enregistrement non transitoire, lisible par un ordinateur, sur lequel est enregistré le programme informatique selon la revendication précédente.Non-transitory, computer-readable recording medium on which the computer program according to the preceding claim is recorded.
FR2100977A 2021-02-02 2021-02-02 Control method for cleaning a motor vehicle sensor Pending FR3119336A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2100977A FR3119336A1 (en) 2021-02-02 2021-02-02 Control method for cleaning a motor vehicle sensor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2100977 2021-02-02
FR2100977A FR3119336A1 (en) 2021-02-02 2021-02-02 Control method for cleaning a motor vehicle sensor

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FR3119336A1 true FR3119336A1 (en) 2022-08-05

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2090585A5 (en) * 1970-04-24 1972-01-14 Westfaelische Metall Industrie
US20150183406A1 (en) * 2012-07-23 2015-07-02 Denso Corporation Cleaning apparatus for in-vehicle optical sensor
WO2018188823A1 (en) * 2017-04-13 2018-10-18 Continental Automotive Gmbh Cleaning system for cleaning a transparent element for a motor vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2090585A5 (en) * 1970-04-24 1972-01-14 Westfaelische Metall Industrie
US20150183406A1 (en) * 2012-07-23 2015-07-02 Denso Corporation Cleaning apparatus for in-vehicle optical sensor
WO2018188823A1 (en) * 2017-04-13 2018-10-18 Continental Automotive Gmbh Cleaning system for cleaning a transparent element for a motor vehicle

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