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 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 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: The invention relates to a device for protecting an optical sensor for a motor vehicle, said optical sensor comprising an optic, a casing mounted to rotate about an axis of rotation (A1) and having a housing configured to receive the optical sensor, an optical element rigidly attached to the casing and configured to be arranged in the field of vision of the optical sensor, and an actuator coupled to the casing in order to rotate the casing and the optical element, the actuator comprising a rotor and a stator configured such that actuator is a motor with an internal rotor.

Abstract: The invention relates to a device for protecting an optical sensor of a driver assistance system for a motor vehicle, with the optical sensor including an optic. The device includes an optical element arranged upstream of the optic of the optical sensor and mounted to be able to rotate about a first axis of rotation, and an electrical motor configured to rotate the optical element. The electric motor includes a rotor that rotates about a second axis of rotation intersecting with the first axis of rotation of the optical element.

Abstract: The invention concerns a device (100) for cleaning the optical surface (162) of at least one optical sensor (160) for a motor vehicle. The cleaning device (100) includes a source (110) for emitting a laser beam and means for guiding the laser beam onto at least a part of the optical surface (162) of an optical sensor (160) so as to clean it.

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: 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: 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: 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 device for protecting an optical sensor of a driver assistance system for a motor vehicle includes a protective casing, a motor, and a pressure balancing system. The protective device has a movable part and a fixed part. The protective casing forms a cavity that accommodates an optical sensor that includes an optical surface. Additionally, the protective casing freely rotates about an axis and includes an optical element that faces the optical surface of the optical sensor. The motor rotates the protective casing at speeds allowing the optical element to be cleaned by a centrifugal effect. The pressure balancing system includes an air vent orifice allowing fluid communication between the inside and the outside of the protective device. The air vent orifice is produced in the fixed part of the protective device.

Abstract: The invention relates to a motor vehicle assembly for protecting a sensor/transmitter of a driving assistance system comprising a protection device that partially surrounds the sensor/transmitter where the protection device includes a first subassembly (B) with a detection/transmission element positioned facing a sensor/transmitter's surface via which a signal passes, and a second subassembly (C) that includes a motor configured to rotatably drive the first subassembly (B) about a line of transmission/reception of the sensor/transmitter. According to the invention, the protection assembly includes at least one heating element controlled by a control unit that heats an accessory attached to the motor vehicle's body in the detection/transmission element's vicinity, the heating element being outside the protection device and in the vicinity of the first subassembly (B).

Abstract: The present invention relates to a device 3 for protecting an optical sensor 13 for an automotive vehicle that is intended to be attached to the optical sensor, characterized in that the device includes:—a transparent optical element 9 exhibiting rotational symmetry and being rotatably mounted about an axis of rotation, configured to be positioned upstream of the optical sensor 13 so that the axis of rotation of the optical element 9 is merged with the optical axis 15 of the optical sensor 13; and—an actuator 5 that is coupled to the optical element 9 so as to rotate the optical element 9 in order to allow soiling to be removed by a centrifugal effect.

Abstract: The invention relates to a device (3) for protecting an optical sensor (13) for a motor vehicle. According to the invention, the protection device (3) comprises: a housing (4) which is mounted in such a way that it rotates about a rotational axis (A1) and has a receiving element (19) designed to receive the optical sensor (13) such that the optical axis (15) of the optical sensor (13) merges with the rotational axis (A1), a transparent optical element (9) constrained to rotate with the housing (4) and designed to be arranged in front of the housing (4) facing the road and such that it is centred in relation to the optical sensor (13), and an actuator (5) for rotating the housing (4), so as to clean said optical element (9) by means of a centrifugal effect. The invention also relates to a driving assistance system (1) corresponding in this way to a cleaning method implementing such a protection device (3).

Abstract: The invention concerns a protection device (3) for protecting an optical sensor (13) for a motor vehicle. According to the invention, the protection device (3) comprises: —a transparent optical element (9) mounted rotatably movable about an axis of rotation (A1), configured to be arranged upstream from an optical unit (14) of the optical sensor (13) such that the axis of rotation (A1) of same coincides with the optical axis (15), and —a motor (5) comprising a rotary shaft (51) configured to rotate about an axis of rotation (A2), and configured to rotate said optical element (9) such that the axis of rotation (A1) of said optical element (9) further coincides with the axis of rotation (A2) of the rotary shaft (51) of the motor (5). The invention also concerns a corresponding driver assistance system (1) and a cleaning method implementing such a protection device (3).

Abstract: A device for an optical sensor for a motor vehicle and a corresponding driver-assistance system are disclosed. The optical sensor includes an optic. The device includes a housing that is mounted so as to be able to rotate around an axis of rotation and that has a compartment that is configured to accommodate the optical sensor, and an optical element that is securely fastened to the housing. The optical element has at least one planar surface that is configured to be placed in the field of view of the optical sensor. The device also includes and an actuator that is coupled to the housing in order to drive the housing and the optical element to rotate.

Abstract: The invention relates to a device (3) for protecting an optical sensor (13) for a motor vehicle. According to the invention, the protection device (3) comprises: a housing (4) which is mounted in such a way that it rotates about a rotational axis (A1) and has a receiving element (19) designed to receive the optical sensor (13) such that the optical axis (15) of the optical sensor (13) merges with the rotational axis (A1), a transparent optical element (9) constrained to rotate with the housing (4) and designed to be arranged in front of the housing (4) facing the road and such that it is centred in relation to the optical sensor (13), and an actuator (5) for rotating the housing (4), so as to clean said optical element (9) by means of a centrifugal effect. The invention also relates to a driving assistance system (1) corresponding in this way to a cleaning method implementing such a protection device (3).

Abstract: A device for protecting an optical sensor of a driver-assistance system for a motor vehicle, a corresponding driver-assistance system and a corresponding assembling process are disclosed. The optical sensor includes an optic and two assembled separate subassemblies. A first subassembly is mounted so as to be able to rotate about an axis of rotation and includes a housing that is configured to at least partially receive the optical sensor and an optical element that is configured to be placed upstream of the optic of the optical sensor. A second subassembly includes an actuator that is configured to drive the first subassembly to rotate.

Abstract: The invention relates to a device for protecting an optical sensor for a motor vehicle, said optical sensor comprising an optic, a casing mounted to rotate about an axis of rotation (Al) and having a housing configured to receive the optical sensor, an optical element rigidly attached to the casing and configured to be arranged in the field of vision of the optical sensor, and an actuator coupled to the casing in order to rotate the casing and the optical element, the actuator comprising a rotor and a stator configured such that actuator is a motor with an internal rotor.