Abstract: A system for cleaning a glazed surface of a motor vehicle including a liquid-spray cleaning device provided with a storage reservoir for storing cleaning liquid, an alternative cleaning device and a control module configured to selectively control the liquid-spray cleaning device and/or the alternative cleaning device. The cleaning system also includes a data acquisition unit configured to detect a qualitative or quantitative characteristic of the cleaning system, the control module being configured to control the liquid-spray cleaning device and/or the alternative cleaning device according to the qualitative or quantitative characteristic detected.

Abstract: Disclosed is a device (5) for cleaning an optical surface, which device comprises: —a transparent optical surface (10); —a cleaning unit (15) for cleaning the optical surface, having a piezoelectric layer (20) and at least two wave transducers (45), each wave transducer having electrodes (40) of opposite polarity in contact with the piezoelectric layer and being acoustically coupled to the optical surface so as to generate at least one surface ultrasonic wave (Ws) or a Lamb wave (WL) propagating in the optical surface, the transducers being further arranged on the periphery of the optical surface.

Abstract: The invention relates to a device (5) comprising: —an optical surface (10); —a cleaning unit (15) for cleaning the optical surface, comprising at least one wave transducer (70) acoustically coupled to the optical surface, the wave transducer having a piezoelectric layer (80) and electrodes (85) of opposite polarity in contact with the piezoelectric layer, and being configured to generate at least one surface ultrasonic wave (WS) or a Lamb wave (WL) propagating in the optical surface; —the optical surface having at least one region of optical interest (100) not superposed on the wave transducer, the device comprising an apparatus (20) configured to sense and/or to emit radiation (R) through the region of optical interest (100).

Abstract: The invention relates to a cleaning system suitable for being mounted on a motor vehicle and comprising at least one first and one second cleaning devices, each cleaning device comprising a cleaning liquid reservoir, at least one cleaning nozzle for spraying the cleaning liquid, a fluid distribution circuit arranged to convey cleaning liquid from the reservoir to the cleaning nozzle and a pump arranged to inject the cleaning liquid contained in the reservoir into the fluid distribution circuit, the cleaning system further comprising a bypass device connecting at least two cleaning devices by their respective fluid distribution circuits, comprising a backup line and a solenoid valve placed on the backup line, controlled as a function of the failure state of a pump, and arranged to supply the cleaning nozzle of one cleaning device from the reservoir of another cleaning device, each cleaning device comprising a non-return member between its reservoir and a point of connection to the bypass device.

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.

Abstract: The present invention relates to a fluid spraying device for a system for cleaning a surface of a motor vehicle, the spraying device includes a solenoid valve configured to allow or prevent the passage of fluid towards a spraying member, the solenoid valve includes a hydraulic system and an electromagnetic system, the hydraulic system includes at least one fluid dispensing member that includes at least a fluid inlet end-fitting, a circulation chamber and a fluid outlet end-fitting in fluid communication with the spraying member, the electromagnetic system being configured to allow or prevent the passage of fluid through the circulation chamber, and the spraying member includes at least a connecting tube and a spray nozzle, the connecting tube being fastened directly to the fluid outlet end-fitting.

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.

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.

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.

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

Abstract: The invention relates to a method for automated cleaning of an optical surface of a motor vehicle, comprising at least one cycle of cleaning (38) the optical surface which comprises a plurality of separate and successive steps of spraying fluid, said cycle of cleaning (38) comprising at least a first step of spraying (30) cleaning fluid onto the optical surface, a second step of spraying (32) cleaning fluid onto the optical surface, and a break step (34), of non-zero duration, between the first step of spraying (30) cleaning fluid and the second step (32) of spraying cleaning fluid.

Abstract: A valve for a heat-transfer fluid circuit having a valve body defining a passage and having a proximal end and a distal end. The valve includes a valve mechanism positioned in the passage, the valve mechanism including a valve head and a seat arranged so as to engage sealingly with each other, the seat being arranged on the valve body in the passage.