Le Plessis-Robinson, France
Le Plessis-Robinson, France

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Patent
Airbus, Mbda France and Sintertech | Date: 2014-01-06

The present invention relates to an electric machine (1) that includes a stator (10) and a rotor (20), with the said stator (10) being equipped with at least one annular exciter unit (11) that includes a coil (12) and at least two annular yokes (13a, 13b), with the said rotor being equipped with a structure (21) and at least one annular receiver unit (22). Each receiver unit (22) includes at least two rows (24) of magnets (23). Two sides (131, 132) of each yoke (13) include teeth (14) distributed angularly in a regular manner, and the said teeth (14) of the two adjacent yokes (13) fit onto a face (121) of the said exciter unit (11), alternately forming north poles and south poles. Each row (24) of the said magnets (23) is positioned opposite one face (121), forming an air gap (30) with the said exciter unit (11), with the electric machine (1) thus including at least two air gaps (30), with a 3D magnetic flux thus circulating inside the said electric machine (1), dividing and regrouping itself in the vicinity of the said magnets (23) and of the said yokes (13).


Patent
Airbus, Mbda France and Sintertech | Date: 2014-01-06

The present invention relates to an electric machine (1) consisting of a stator (10) that is provided with at least one exciter unit (11) consisting of a coil (12), at least two annular yokes (13a,13b) and at least one row of intermediate pieces (15), and a rotor (20) having a structure (21) and at least one receiver unit (22) consisting of at least two series (25) of at least two rows (24) of magnets (23). Two sides (131,132) of each yoke (13) consist of the first teeth (14), fitting with the said intermediate pieces (15) on a face (121) of the said exciter unit (11) and alternatingly forming the second north poles and the second south poles. Each series (23) is positioned opposite one face (121), forming an air gap (30) with the said exciter unit (11), with the electric machine (1) thus including at least two air gaps (30), with a flux F thus circulating inside the said electric machine (1), dividing and regrouping itself in the vicinity of the said magnets (23) and of the said yokes (13).


A separately excited electric machine having a stator provided with at least one exciter unit and a rotor provided with strips. Each exciter unit comprises two secondary magnetic circuits and one primary magnetic circuit. Each secondary magnetic circuit comprises a stator exciter winding and two annular yokes provided with teeth. The primary magnetic circuit comprises a rotor exciter winding and an annular ring. First magnetic fluxes generated by the primary magnetic circuit circulate around loops in each strip and second magnetic fluxes generated by the secondary magnetic circuits circulate around loops in the strips, the teeth, and the ring. Each strip thus has a first north pole and a first south pole, with the teeth comprising in alternation second north poles and second south poles.


The target marking device comprises a small-size flying unit, said flying unit being configured to fly at low height and to be guided with the aid of guidance commands, said flying unit being furnished with at least one sensor able to measure at least one parameter of the environment, a data transmission unit configured to emit at least data relating to measurements carried out by the sensor from the flying unit and to receive guidance orders at the flying unit, and at least one emitter able to emit position information.


Patent
Mbda France | Date: 2014-02-05

The invention relates to an optimization system (1) which comprises means (4) for entering data, means (2) for defining a criterion for each one of the objectives considered using the data entered, an element (6) for optimizing each one of the criteria individually in order to obtain an optimal person for each one of said criteria, an optimal person including at least one optimal value feasible for the criterion, an element (8) for determining, by means of an evolutionary game algorithm, the survival coefficients of said optimal persons, and an element (10) for determining an optimal solution by mutating the optimal persons, by means of the survival coefficients and of the application of a mutation operator, the optimal solution including at least one final optimal value enabling the achievement of all the objectives considered to be optimized.


The invention comprises using a photodetector that it sensitive in the MWIR band, performing image differencing on two successive images at a time, and defining thresholds for said differences in order to extract only those exceeding the threshold used.


According to the invention, before firing said projectile (M) from the carrier (L), the mean biases of the accelerometers and of the gyrometers of the inertial unit (IM) of said craft are determined using the inertial unit (IL) of said carrier (L) and, during the inertial navigation of said craft (M), the measurements of the accelerometers and of the gyrometers output by said inertial unit (IM) of said craft (M) are corrected by said mean biases determined before launching.


Method and system for assisting in the verification and validation of an algorithm chain. The system (1) comprises an instrumentation module (2) of an algorithm chain, providing automatic data capture including at least some of the following data: interface data and internal algorithm data of the algorithm chain, a module (3) for automatic verification of functional rules, a learning module (5) for the modelling by learning of the constraints and algorithm criteria of the algorithm chain, and taking account of the validations performed by a human operator, and a module (7) for automatic detection of bugs and functional problems in of the algorithm chain using statistical learning means.


Patent
Mbda France | Date: 2014-02-05

The optimisation device (1) comprises means (4) for inputting data, means (2) for defining, on the basis of input data, time windows of availability and efficiency, relative to resources in consideration, an element (6) for expressing a space of solutions, i.e. said time windows, as probabilities, generating time-continuous functions in compliance with said time windows, an element (8) for optimising the resource allocation plan from the solutions space expressed as probabilities in this way, and user means (11) for using an optimal allocation plan defined in this way.


The invention relates to a linking device having a bearing and a weapons system comprising such a device. The aim of the device is to adjust the rotational resisting torque of two coaxial cylindrical parts (8, 10) which are rotatable relative to one another about a shared axis (A). According to the invention, said bearing (21) includes two rings (23, 24) made of a resiliently deformable material, capable of respectively engaging with the two cylindrical portions (8, 10), and between which rolling elements (25) are arranged such as to be in contact with raceways of said rings, said device comprising a controllable member (22) for adjusting the tightening of the rings, capable of engaging with one of said parts in order to engage with said bearing.

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