Messier-bugatti Inc.

Messier-bugatti-dowty

Airbus France

Jean-Pierre Garcia

Michel Basset

Yann Chamaillard

Arnaud Jacquet

Gérard Léon Gissinger

David Frank

Florent Nierlich

Stéphane Dellac

Jean-Marc Ortega

Olivier Gosselin

Gerard Leon Gissinger

Stéphane Mallevais

Stephane Mallevais

A method for powering an autonomous drive device () in an aircraft comprising a certain number of drive motors () for the wheels () when the jet engines of the aircraft are not activated, the aircraft comprising an auxiliary power unit or APU () driving a first generator () for supplying power to devices on the aircraft that need to be powered when the jet engines are not activated. The method comprises the use of a second generator () dedicated to the power supply of the autonomous drive device, the second generator being disposed in parallel with the first generator so as to be driven by the APU and, when it operates as a motor under the action of power recovered by the autonomous drive device, so as to help the APU drive at least the first generator.

Method for powering autonomous drive motors for an aircraft

The invention provides a method of managing the braking of an aircraft having a plurality of brakes comprising friction elements, the method comprising the following steps for at least one group of brakes:

Method of distributing braking within at least one group of brakes of an aircraft

A braking control method that includes: (1) regularly updating a grip model representative of a relationship between a coefficient of friction and a wheel slip rate; (2) determining, with an iterative calculation process including a plurality of calculation cycles a variation of a braking setpoint in a given prediction horizon, the variation of the braking setpoint in the given prediction horizon being established using the regularly updated grip model and its characteristic shape and so that the variation of the braking setpoint in the given prediction horizon complies with the braking order and complies with a given calculation constraint which is function of the wheel slip rate; and (3) retaining as the generated braking setpoint a value of the braking setpoint in the given prediction horizon which corresponds to a first calculation cycle of the plurality of calculation cycles of the iterative calculation process.

Method of adaptive braking control for a vehicle

A method of distribution braking between the brakes of an aircraft. The method includes a first step of estimating a braking force objective and a steering torque objective to be achieved by the brakes of the aircraft. It also includes the steps of defining at least two groups of brakes () and determining, for each group, a braking level that is to be achieved by the group. The braking levels being calculated in such a manner that braking performed in application of the braking levels is, at least under normal operating conditions of the brakes, in compliance with a braking force objective and with a steering torque objective.

Method of distributing braking between the brakes of an aircraft

The invention relates to an electrical power distribution architecture specially adapted for actuating in sequence aircraft moving elements such as doors, undercarriages, or high-lift elements, said moving elements being actuated by electromechanical actuators powered in sequence from electrical power delivered by at least one electrical power bus of the aircraft.

Power distribution architecture for actuating moving elements of an aircraft in sequence

The invention relates to an architecture for a braking system for an airplane fitted with a plurality of undercarriages each carrying a plurality of wheels, at least some of which are fitted with brakes, the architecture comprising at least two braking computers each having two modules such that in each computer, one of the modules controls a first fraction of the brakes and the other module controls a second fraction of the brakes complementary to the first. According to the invention, the architecture is configured to operate in any one of the following modes of operation:

Architecture for an airplane braking system including two computers and capable of withstanding two breakdowns, and a method of managing such an architecture

The invention relates to a system architecture for managing aircraft landing gear and suitable for extending/retracting retractable undercarriages, steering steerable wheels, and braking braked wheels. According to the invention, the architecture comprises a communications network having connected thereto extension/retraction actuators, steering actuators, and braking actuators, together with one or more control units adapted to control all of the actuators connected thereto, the communications network having transmission characteristics that are adapted to enabling the control unit(s) to implement antilock servo-control for controlling the braking actuators.

Distributed architecture for a system for managing aircraft landing gear

A device for controlling aircraft maneuvering units includes at least one control unit and a central computing unit. The control unit may be actuated by a pilot for issuing maneuvering commands. The central computing unit is capable of establishing control signals for at least one maneuvering unit from the maneuvering commands. Each central computing unit is being provided with its own failure detection system. The device further includes at least one backup electronic module respectively associated with a maneuvering unit and capable of also establishing control signals for this maneuvering unit from maneuvering commands. The electronic module lacks any failure detection system of its own, but it is connected to a central failure detection system.

Growing community of inventors

Colomiers, France

Jean-Pierre Garcia