Abstract: A power supply system for a railway vehicle is provided including a converter able to receive information from a transmission system between a power supply unit and air-conditioning units and to deduce from this information the demand for electrical power from each air-conditioning unit, this demand indicating the electrical power required by that air-conditioning unit to cool and/or dehumidify the air within a car in which it is installed, and the first electrical converter being equipped with a module for adjusting the amplitude and/or frequency of the three-phase voltage in a power supply network in response to the demands transmitted by each air-conditioning unit.

Abstract: This deadbeat control method of controlling an asynchronous rotary electrical machine consists of: a) a step of establishing a set point current that is adapted to achieve at the end of the interval T both the mechanical force set point and a set point magnetic flux and is established on the basis of a relationship between the set point current, the set point magnetic flux and initial current and magnetic flux values at the beginning of the interval T; and b) a step of calculating an average control vector to be applied continuously during the interval T to obtain at the end of the interval T a current equal to the set point current established during the step a).

Abstract: This control system for a system rendered secure by diversification comprises: a set of processors processing railway commands, arranged in parallel and each capable of receiving different sets of instructions, a component for selecting commands selected from the output data issuing from the processors. The modular applications automatic systems are identical for all sets of instructions and each set of instructions associated with a processor is specific for creating a separate sequencer for the successive activation of modular application automatic systems in a particular sequence.

Abstract: A device for inserting elements into the ground in order to carry out works includes a positioning mechanism. The positioning mechanism includes an upper panel which is fixed to the chassis of a vehicle for transporting the insertion device, a movable plate to which an insertion arm is fixed, and at least six jacks which can be controlled so as to allow movement of the movable plate relative to the upper panel with six degrees of freedom, each jack being directly fixed, at one side, to the upper panel and, at the other side, to the movable plate of using connections which have three degrees of freedom in terms of rotation.

Abstract: A method of inserting a preceding element and then a following element in the ground, along a calculated path, in order to construct a work, the method including: a step of determining an absolute positioning error of a preceding element relative to the nominal position at which the preceding element ought to have been inserted; and a step of automatically guiding the inserter arm towards a target position at which a following element is to be inserted as a function of the absolute positioning error determined for the preceding element in such a manner as to reduce the positioning error of the following element relative to the preceding element.

Abstract: An axle for a rail vehicle including a central shaft, two wheels which are connected in terms of rotation by the shaft and two bearings, each wheel being mounted so as to rotate relative to a bearing about the axis Y of the wheels. The axle further includes at least one cross-piece for reinforcement of the axle in terms of flexion, this cross-piece rigidly connecting the two bearings.

Abstract: This method maintains a direct voltage at the input of a DC/AC voltage converter in order to maintain an asynchronous motor in a magnetised state, the input of the converter being connected to a DC supply bus of an electric vehicle, and comprises, in a free wheel mode during which the vehicle coasts and the bus is disconnected from a catenary: a) a step (76) for magnetising the motor, then b) a step (78) for operating the motor as a generator of alternating voltage, then c) a step (72) for stopping the converter when the direct voltage of the bus reaches an upper threshold, then d) a step (74) for maintaining the converter in the idle state as long as the direct voltage of the bus remains higher than a minimum direct magnetisation voltage of the asynchronous motor.

Abstract: This method for supplying electrical power to a DC supply bus of a rotating electric motor of an electric vehicle comprises, when the bus is supplied with electrical power from a second catenary: a step (84) for controlling the closure of a precharge switch in order to connect the bus to a first terminal by way of the same current limitation means which is also used when electrical power is supplied from a first catenary which supplies a higher voltage than that supplied by the second catenary, a step (90) for controlling the rectifier/booster in order to rectify and increase the alternating voltage supplied by the first terminal and supply the bus with the voltage which has been rectified and increased in this manner, then a step (92) for disconnecting the bus from the first terminal and a step (94) for controlling the closure of a second isolating switch in order to connect the bus to the second terminal without passing via the precharge circuit.

Abstract: The system includes, on the one hand, a data warehouse which contains items of information each relating to at least one technical element of at least one machine, each item of information being associated, in the data warehouse, with the technical element to which it relates, and, on the other hand: a computer configured to create a manual template defined by a manual structure which includes logical portions, to insert in a logical portion of the structure of the manual template, at least one link to an item of information selected from the information of the data warehouse, and to control a peripheral unit for editing the manual template supplemented with links in order to generate a manual, independent of the data warehouse.

Abstract: The present invention relates to a system for creating a manual from at least one item of information originating from a global data warehouse, each item of information from the global data warehouse being able to comprise a link to another item of information from the global data warehouse. The system comprises means for copying at least one item of information from the global data warehouse into the manual, and means for scanning the manual, and, for each link contained in a copied item of information: if the linked information has been copied into the manual, for replacing this link with an explicit reference at the location in the manual where it has been copied, if the linked information has not been copied into the manual, for deleting the link.

Abstract: The door threshold for a railway vehicle is intended to partially fill the gap between the vehicle and a platform. It comprises a support (22) which can be connected to the structure (16) of the railway vehicle and a strip (24) which is retained by the support (22). The strip (24) can be displaced between a normal position, in which it projects relative to the support (22), and a position retracted in the support (22). It comprises means (30A, 30B) for clamping the strip against at least a clamping surface (30A, 30B) of the support in order to produce friction of a specific value between the strip (24) and the support (22) counter to the displacement of the strip (24) relative to the support (22) in the plane of the or each clamping surface (30A, 30B).

Abstract: This device is of the type comprising a rack, a chassis that can be inserted into the rack, and at least one electronic board that can be inserted into the chassis. According to one aspect of the invention, the chassis is arranged so as to enable the insertion of the or each board when the chassis has been inserted into the rack beforehand, and output connectors of the rack and of the or each board, and board connectors of the chassis and of the or each board are arranged so as to connect up respectively when the or each board is inserted into the chassis which has been inserted into the rack beforehand.

Abstract: This deadbeat control method of controlling an asynchronous rotary electrical machine consists of: a) a step of establishing a set point current that is adapted to achieve at the end of the interval T both the mechanical force set point and a set point magnetic flux and is established on the basis of a relationship between the set point current, the set point magnetic flux and initial current and magnetic flux values at the beginning of the interval T; and b) a step of calculating an average control vector to be applied continuously during the interval T to obtain at the end of the interval T a current equal to the set point current established during the step a).

Abstract: An articulated train rake includes a plurality of longitudinally aligned cars, each having leading and trailing longitudinal ends, for each car a ball joint between the leading end of said car and the trailing end of the preceding car in the row, each car including a body, at least a bogie on which the body rests, and pivot joint means for connecting the body to the bogie. The ball joints are disposed at a vertical level lower than or equal to the pivot joint means relative to the rolling plane of the rake.

Abstract: This rotor is of the type comprising a plurality of magnetic driving elements (17) which are distributed around the axis of rotation of the rotor, each magnetic driving element (17) defining a magnetic pole of the rotor and having a substantially radial magnetic axis, each magnetic driving element comprising at least one permanent magnet (18). At least one of the magnetic driving elements (17) comprises a plurality of separate permanent magnets (18), the magnets (18) of the or each magnetic driving element (17) being separated from each other along at least one separation surface which is substantially parallel with the magnetic axis of the or each magnetic driving element (17), and an insulator (55) which is interposed between the magnets (18) of the or each magnetic driving element (17) along the or each separation surface.

Abstract: The invention relates to a control device (3) intended to test a console (2) which can process display commands.

Abstract: The vehicle adapted to move along a rail comprises a body and a levitation system, the body resting in operation on the levitation system in a main bearing direction via suspension means between the body and the levitation system to allow relative movement between the body and the levitation system in the main bearing direction. The suspension means comprise a pneumatic diaphragm suspension including a first connector connected to the levitation system, a second connector fastened to the body, and a deformable diaphragm defining a sealed cavity receiving a compressible fluid between the first and second connectors. Application to magnetic levitation rail vehicles.

Abstract: This vehicle comprises a body and a levitation device, the body bearing in operation on the levitation device which comprises a first levitation module and a second levitation module connected to the body, and capable of moving to allow the modules to turn relative to the body. The vehicle comprises means for synchronizing movement of the levitation modules comprising a first hydraulic ram between the first module and the body, a second hydraulic ram between the second module and the body, and a fluid-flow circuit connecting the first and second rams to synchronize the actions of the rams. Application to magnetic levitation rail vehicles, for example.

Abstract: The present invention relates to a control method and control apparatus for controlling actuator apparatus implemented in active suspension apparatus for vehicles, in particular rail vehicles, said control method and said control apparatus being characterized in that they use the articulated architecture of the train to derive the local curvature of the track in real time, in which control method and control apparatus the control signal transmitted by said control apparatus to the actuator apparatus of the bogie of order n in the articulated train is a function of measurements of at least one deflection angle &agr;i at an articulation center situated between adjacent carriages and of the position offset hj of said articulation center relative to the track.

Abstract: A railway vehicle bogie, including at least two axles, at least one side member being provided to connect the axles to a central part of the bogie. The side member is formed by an elastic blade shaped as a vertically oriented continuous flattened loop which may be made of composite material or of metal. A process for manufacturing a side member of composite material consists in winding a continuous lap of reinforcing fibers over at least one turn around two studs so as to form a loop, and polymerizing a resin-based matrix around the fibers.