Abstract: A control system for controlling an electrical device of a nacelle, the device having at least one element that is movable to a closed position and an open position. The control system includes at least one electromechanical member for actuating the movable element, a unit for electrically driving the electromechanical actuation member, and a controlling and monitoring unit for controlling the electrical drive unit so as to move the movable element to the closed and/or open position. The control system further includes a system for recovering braking power from the electrical drive unit during the movement of the movable element to the closed and/or open position.

Abstract: The present disclosure relates to a monitoring assembly for detecting structural detects. The monitoring assembly includes a composite sandwich structure with two distinct strata, a calculation unit and a plurality of sensors for generating signals representative of an amplitude or frequency of vibrations produced in a structure. Each sensor is formed by an electromechanical microsystem including a converter for converting mechanical energy into electrical energy. In particular, the calculation unit evaluates differences between a current transfer function resulting from the signals and a predetermined nominal transfer function, compares each of the differences with a respective detection threshold, and evaluates a size or a position of the structural defect in the structure.

Abstract: The control system of the invention includes at least one actuator (6) for a cowling (2), driven by at least one electric motor (7), and a control means (9) for the electric motor (7). The electric motor control means (9) includes a means for determining and/or estimating the outside temperature of the turbojet engine, the electric motor control means being adapted for adjusting the driving torque supplied by the electric motor on the basis of said outer temperature.

Abstract: The present invention relates to an electric power supply circuit (1) for a turbojet engine nacelle including at least one electric generator (2) mechanically connected to the shaft of a turbojet engine, said generator being capable of directly supplying electric power to a first electric power device other than a simple monitoring or supervising unit, characterized in that said generator is capable of directly supplying electric power to at least one second electric power device other than a monitoring or supervising unit, as well as to a nacelle including such an electric circuit.

Abstract: The invention relates to a system (10) for controlling an aircraft propelled by at least one jet engine housed in a nacelle, characterised in that said system includes: a full authority electronic control unit (100) of the jet engine, intended for monitoring the jet engine, suitable for monitoring and controlling at least one electrical device of the nacelle; and an electric power unit (200) of the nacelle, external to said full authority electronic control unit of the jet engine for monitoring the jet engine, suitable for managing the electric power supply of said electrical device of the nacelle.

Abstract: The invention relates to a method for controlling at least one actuator for actuating the cowlings of a thrust inverter in a turbojet engine, the actuator being driven by an electric motor including a relative position sensor providing information on the evolution of the movement thereof, wherein the motor is controlled based on the instantaneous position of the cowling in at least one portion of the movement thereof between an open position and a closed position, the instantaneous position of the cowling being determined from at least one reference position absolute data and relative position data relative to said reference position provided by the relative position sensor of the motor, wherein in case the actuation is resumed after an interruption, a new determination of the reference position is initiated.

Abstract: This system for actuating at least one aircraft nacelle element comprises at least two actuators (A1, A2, A3) kinematically linked together, a main hydraulic (or electric) generation circuit (1) able to operate at least one (A1) of the two actuators, and a secondary electric (or hydraulic) generation circuit (13) able to operate the other actuator (A3).

Abstract: The invention relates to a thrust reversal device comprising at least one cowl arranged in such a way that it can be moved between a closed position and an open position, said cowl being actuated by at least one actuator that can be driven by at least one electric engine. The invention is characterised in that at least one electric engine is connected to at least two separate power supplies (7a, 7b).

Abstract: The invention relates to a system for actuating a plurality of actuators (15) that can move a mobile panel of an aircraft nacelle. Said system comprises at least two motors (16) that can drive the actuators (15), the two motors (16) being controlled and supplied by at least two separate control units (33, 35), and the actuators (15) being mechanically interconnected by a mechanical transmission (37). The invention also relates to a nacelle comprising such an actuating system.

Abstract: The invention relates to a system for controlling a plurality of actuators (15) that can displace a mobile panel (13, 17) pertaining to a nacelle (1) of an aircraft, said system comprising at least two motors (16) that can drive the actuators (15). The system also comprises two separate control units (33, 35), each unit being configured in such a way as to control and feed at least one motor that is not fed or controlled by the other control unit. The invention also relates to a nacelle comprising such a system.

Abstract: The control system of the invention includes at least one actuator (6) for a cowling (2), driven by at least one electric motor (7), and a control means (9) for the electric motor (7). The electric motor control means (9) includes a means for determining and/or estimating the outside temperature of the turbojet engine, the electric motor control means being adapted for adjusting the driving torque supplied by the electric motor on the basis of said outer temperature.

Abstract: The invention relates to a method for controlling a plurality of actuators (9a, 9b, 9c) for a movable thrust reverser cowl (1), characterized remarkable in that the position deviation between adjacent actuators is measured in real time, and in that the speed profile of the actuator or actuators in question is adjusted by a position deviation exceeding a predetermined threshold.

Abstract: The control system of the invention includes at least one actuator (6) for a cowling (2), driven by at least one electric motor (7), and control means (9) for the electric motor (7) and the actuator (6). The control system includes an electric circuit (C) that comprises: a plurality of electric components; a plurality of measuring means (16-18) adapted for measuring respectively a characteristic magnitude of an electric component or a group of electric components in the electric circuit; a failure detection means (19) adapted for detecting a failure at a component of the electric circuit when the characteristic magnitude measured at said component exceeds a predetermined value or is in a range of predetermined values.

Abstract: The invention relates to a control system for at least one actuator (6) for the cowlings of a thrust inverter in a turbojet engine, that comprises an assembly of actuation and/or control components. A control means (9) is provided for detecting the failure of an actuation and/or control component (7, 16, 13), for determining the blocking or non-blocking character of the failure for the system operation and, in case of a non-blocking failure, for switching from a nominal operation mode to a failure-adaptation operation mode in which the failure of the actuation and/or control component (7, 16, 13) is compensated at least partially by a modified instruction of the other actuation and/or control components (7, 16, 13).

Abstract: The invention relates to a system for controlling at least one actuator (6) for thrust reverser cowlings (2) on a turbojet engine, comprising a set of actuator and/or control components with at least one actuator (6) for cowlings (2) driven by at least one electric motor (7) and control means (9) for the electric motor (7). The control means (9) comprise test means (20), with an interface (22) destined for receiving test requests from a user. The test means (20) are designed on reception of a test request to carry out a test cycle on one or more components (7, 6, 15, 18) of the system comprising an isolated actuation to the component(s) (7, 6, 15, 18) with regard to the other components of the system.

Abstract: The invention relates to a method for controlling at least one actuator for actuating the cowlings of a thrust inverter in a turbojet engine, the actuator being driven by an electric motor including a relative position sensor providing information on the evolution of the movement thereof, wherein the motor is controlled based on the instantaneous position of the cowling in at least one portion of the movement thereof between an open position and a closed position, the instantaneous position of the cowling being determined from at least one reference position absolute data and relative position data relative to said reference position provided by the relative position sensor of the motor, wherein in case the actuation is resumed after an interruption, a new determination of the reference position is initiated.

Abstract: The invention relates to a method for the self-calibration of electric jacks (6a, 6b) capable of actuating a mobile member (2) of a turbojet nacelle (1) and connected to at least one position measuring member, characterised in that it comprises the steps of: moving the jack(s) into a retracted position corresponding to a first position of the mobile member, storing one or more position values fed back by the position measuring member for the jack(s) in said retracted position; moving the jack(s) into an extended position corresponding to a second position of the mobile member; storing one or mom position values fed back by the position measuring member for the jack(s) in said extended position.