公开(公告)号：US20220340103A1

公开(公告)日：2022-10-27

申请号：US17763020

申请日：2020-09-24

Applicant: UNIVERSITE DE LILLE ,  CENTRALE LILLE INSTITUT ,  UNIVERSITE POLYTECHNIQUE HAUTS-DE-FRANCE ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  YNCREA HAUTS DE FRANCE ,  VALEO SYSTEMES D'ESSUYAGE

Inventor： Adrien PERET ,  Frederic BRETAGNOL ,  Michaël BAUDOIN ,  Olivier BOU MATAR-LACAZE

IPC: B60S1/02 ,  B08B7/02 ,  B06B1/06 ,  B08B17/02 ,  B60S1/56

Abstract: Device for cleaning a support member covered with a liquid Electroacoustic device (10) comprising:—a support member (50),—at least two wave transducers (15a-h) which are acoustically coupled to the support member and each configured to generate an ultrasonic surface wave (Wa-h) which propagates in the support member, the propagation directions (P) of the ultrasonic surface waves generated by the transducers being different;—a control unit (40), the device comprising an analysis unit (35) which is configured to estimate the orientation of the external force (OFe) which is applied to a liquid when the liquid is in contact with the support member and/or the device being configured to receive the estimate of the orientation of the external force, the control unit being configured to control at least one of the transducers, from the estimate of the orientation of the external force, so that the acoustic force which is applied to the liquid and produced by the interaction between the ultrasonic surface wave(s) and the liquid is orientated in a predetermined direction.

公开(公告)号：US20250162542A1

公开(公告)日：2025-05-22

申请号：US18840136

申请日：2023-02-01

Applicant: VALEO SYSTEMES D'ESSUYAGE

Inventor： Frederic BRETAGNOL ,  Marcel TREBOUET

IPC: B60S1/48 ,  B60S1/56

Abstract: A cleaning device for cleaning motor vehicle sensors. The device includes at least one tank of cleaning liquid and several cleaning nozzles for spraying the cleaning liquid onto the various sensors to be cleaned. The device further includes a control unit configured to receive and transmit information coming from the various sensors, a main valve block configured to control the delivery of cleaning liquid to a first set of nozzles, the main valve block including a main control circuit configured to receive information coming from the control unit, and at least a first secondary valve block including a first secondary control circuit configured to receive and transmit information from/to the main valve block, the electrical connection being effected by a multiplexed electrical network.

公开(公告)号：US20230382353A1

公开(公告)日：2023-11-30

申请号：US18042656

申请日：2021-07-30

Applicant: VALEO SYSTEMES D'ESSUYAGE

Inventor： Adrien PERET ,  Frederic BRETAGNOL ,  Marcel TREBOUET

IPC: B60S1/56 ,  B60S1/08 ,  B60S1/44

CPC classification number: B60S1/566 ,  B60S1/08 ,  B60S1/44

Abstract: The present invention relates to a wiper system for a glazed surface, with at least one main body which includes at least one blade rubber designed to come into contact with the glazed surface and at least one embedded motorized member for setting in motion, which is configured to drive a linear movement of the main body along the glazed surface.

公开(公告)号：US20230338907A1

公开(公告)日：2023-10-26

申请号：US18042711

申请日：2021-08-24

Applicant: VALEO SYSTEMES D'ESSUYAGE

Inventor： Frederic BRETAGNOL ,  Adrien PERET ,  Vincent IZABEL

IPC: B60S1/48 ,  B01F27/118 ,  B01F23/235 ,  B01F27/50

CPC classification number: B01F23/2351 ,  B01F27/118 ,  B01F27/50 ,  B60S1/481 ,  B01F2101/24

Abstract: The present invention relates to a device for forming a foam from a cleaning fluid for a wiping system for wiping at least one glazed surface of a vehicle, the device for forming a foam includes at least one cleaning liquid inlet, a chamber intended to receive the cleaning fluid and delimited by a housing, an agitator configured to turn in the chamber about an axis of rotation, a device for driving the agitator, and at least one foam outlet.

公开(公告)号：US20250053001A1

公开(公告)日：2025-02-13

申请号：US18719289

申请日：2022-12-14

Applicant: VALEO SYSTEMES D'ESSUYAGE

Inventor： Frederic BRETAGNOL

IPC: G02B27/00

Abstract: The present invention relates to a protection assembly for a cleaning assembly including a cleaning unit and an optical surface, with the cleaning unit having at least one wave transducer to be acoustically coupled to the optical surface. The protection assembly including a mechanical protection element configured to cover the wave transducer, such that the wave transducer is between the mechanical protection element and the optical surface. The mechanical protection element is configured to define, with the optical surface, at least one opening which allows the ultrasonic wave to propagate on the optical surface outside the mechanical protection element. The protection assembly includes a sealing element disposed close to the opening and capable of limiting the passage of liquid through the opening.

公开(公告)号：US20240383446A1

公开(公告)日：2024-11-21

申请号：US18577488

申请日：2022-07-05

Applicant: VALEO SYSTEMES D'ESSUYAGE

Inventor： Frederic BRETAGNOL ,  Radu-george BUTE

IPC: B60S1/56 ,  B60S1/52

Abstract: The invention relates to a cleaning system for cleaning a detection surface of a sensor. The cleaning system includes a cleaning device with a plurality of nozzles, which are configured to deposit droplets of liquid on an acceleration surface situated upstream of the detection surface, a reservoir connected to the cleaning device and configured to store the liquid, and an acceleration device that accelerates the movement of the droplets of liquid from the acceleration surface onto the detection surface.

公开(公告)号：US20220339669A1

公开(公告)日：2022-10-27

申请号：US17763016

申请日：2020-09-24

Applicant: UNIVERSITE DE LILLE ,  CENTRALE LILLE INSTITUT ,  UNIVERSITE POLYTECHNIQUE HAUTS-DE-FRANCE ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  YNCREA HAUTS DE FRANCE ,  VALEO SYSTEMES D'ESSUYAGE

Inventor： Adrien PERET ,  Frederic BRETAGNOL ,  Michaël BAUDOIN ,  Olivier BOU MATAR-LACAZE

IPC: B06B1/06 ,  B60S1/56 ,  B08B7/02

Abstract: Electroacoustic device (5) comprising: an ultrasonic wave transducer (15) comprising a piezoelectric substrate (10) and first (30) and second (35) electrodes in contact with the piezoelectric substrate, and a carrier (10), the transducer being attached to the carrier and acoustically coupled to the carrier, and the first and second electrodes being sandwiched, at least partly, between the piezoelectric substrate and the carrier, the device being configured to generate an ultrasonic surface wave (W) propagating through the carrier at a distance from the transducer when an electric current passes through the first and second electrodes.

公开(公告)号：US20250050387A1

公开(公告)日：2025-02-13

申请号：US18719886

申请日：2022-12-14

Applicant: VALEO SYSTEMES D'ESSUYAGE

Inventor： Alexandre FILLOUX ,  Frederic GIRAUD ,  Frederic BRETAGNOL

IPC: B08B7/02 ,  B08B17/02 ,  G02B27/00

Abstract: The present invention relates to a protection assembly for a cleaning assembly including a cleaning unit and an optical surface, with the cleaning unit having at least one wave transducer to be acoustically coupled to the optical surface. The protection assembly including a mechanical protection element configured to cover the wave transducer, such that the wave transducer is between the mechanical protection element and the optical surface. The protection assembly also includes a covering made of an electromagnetic wave absorbing material, the covering being capable of limiting electromagnetic radiation from the wave transducer outside the cleaning assembly.

公开(公告)号：US20220371552A1

公开(公告)日：2022-11-24

申请号：US17763018

申请日：2020-09-24

Applicant: UNIVERSITE DE LILLE ,  CENTRALE LILLE INSTITUT ,  UNIVERSITE POLYTECHNIQUE HAUTS-DE-FRANCE ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  YNCREA HAUTS DE FRANCE ,  VALEO SYSTEMES D'ESSUYAGE

Inventor： Adrien PERET ,  Frederic BRETAGNOL ,  Michaël BAUDOIN ,  Ravinder CHUTANI

IPC: B60S1/02 ,  B06B1/06 ,  B08B17/02 ,  B08B7/00 ,  B08B7/02 ,  G10K11/36

Abstract: Method comprising: supplying electricity to at least one wave transducer (25) for synthesising an ultrasonic surface wave propagating in a medium (10) to a body (15) arranged on one side of the medium, at least one portion of the electrical supply energy being converted into heat by the transducer, the electrical energy supplied to the transducer being sufficient for the heat and the energy of the ultrasonic surface wave to cause: —the body to melt when the body is in the solid state, and/or—the body to be maintained in the liquid state when the temperature of the medium is below the solidification temperature of the body.