Thales

Xavier Servantie

Florent Mennechet

Bruno Aymeric

Emmanuel Monvoisin

Matthieu Claybrough

Siegfried Rouzes

Yannick Le Roux

François Michel

Thierry Ganille

Laurent Laluque

Stéphanie Lafon

Eric Filliatre

Bernard Dubourg

Pierre Mariani

Didier Poisson

Cécile Andre

Sébastien Ellero

Francois Michel

Alain Goetz

Cecile Andre

Bruno Capelle

Daniel Hauret

A method for guidance and for assisting in following a trajectory for velocity-vector piloting of an aircraft includes a step of calculating, at all times, lateral and vertical offsets of the current position of the aircraft from a target trajectory, estimated by a flight management system, and then a joining heading and a joining gradient for the aircraft to join the trajectory depending on these offsets; and a following fourth step of displaying, in head-up or head-down form, a consistent guidance symbol centered on the calculated joining heading and the calculated joining gradient for joining the trajectory, on a piloting screen showing a velocity vector. The fourth step may display, in addition to the guidance symbol, one or more items of information anticipating the next trajectory break.

Guidance method and system for assisting in following a trajectory for velocity-vector piloting of an aircraft

The present invention relates to a visualization method of the attitude of an aircraft, comprising the formation of a pitch scale (E) defining a lower border and an upper border, and including:

Visualization method of the attitude of an aircraft, associated computer program product and visualization system

The present invention relates to a method for displaying traffic in the vicinity of a reference aircraft in a non-compliant display zone, and comprising the following steps: acquisition () of a position of one of the surrounding aircraft and determination of a relative two-dimensional position of the surrounding aircraft relative to the reference aircraft in a real plane and at a relative altitude; associating () a traffic symbol with the surrounding aircraft; determination () of a two-dimensional position of the reference aircraft in a virtual plane representative of the real plane; displaying () in perspective the virtual plane and the traffic symbol at the distance of the two-dimensional position of the reference aircraft in this virtual plane.

Method of visualization of the traffic around of a reference aircraft in a non-compliant display zone, associated computer product program and visualization system

The general field of the invention is that of head viewing systems for aircraft comprising a head support, a viewing device, a detection of posture of said head support, means for detecting the current heading of an aircraft and means for graphically generating said heading. The system according to the invention comprises means of control, display and selection of headings arranged so as:

Head-mounted display system comprising heading selection means and associated selection method

A method for the three-dimensional representation of the trajectory of an aircraft in flight implemented in a navigation system of an aircraft is provided. The flight plan of the aircraft comprises imposed georeferenced trajectories and predicted non-georeferenced trajectories. When the trajectory of the aircraft is dependent on a non-georeferenced flight setpoint, the three-dimensional representation method is an iterative process comprising the following steps: computing a predicted trajectory arising from at least one computed trajectory extending over a determined distance or duration; computing a smoothed trajectory from the predicted trajectory in order to obtain a resulting trajectory; computing a displayed trajectory, the trajectory being equal to the resulting trajectory corrected for constant deviations or deviations depending on the application of setpoints from the flight director; and displaying the displayed trajectory.

Method for computing the representation of the trajectory of an aircraft in flight

A method of visualization of the traffic around a reference aircraft including acquiring the actual position of a surrounding aircraft, delimiting part of the airspace around this position by a current three-dimensional contour, visualizing the current three-dimensional contour, tracking the actual position of the surrounding aircraft, and when this position is outside the current three-dimensional contour: delimiting part of the airspace around the actual position of the surrounding aircraft by a new current three-dimensional contour, and visualizing the current three-dimensional contour.

Method of visualization of the traffic around a reference aircraft in a compliant display zone, associated computer product program and visualization system

A method for the three-dimensional synthetic representation of the trajectory of an aircraft in flight being implemented in a flight and navigation system of an aircraft comprising a display system allowing synthetic images to be displayed, the flight plan of the aircraft comprises a predicted trajectory dependent on a non-georeferenced flight setpoint, the display of the predicted trajectory taking the form of a path represented by two limits separated by a determined width. The path comprises two branches, each branch positioned on the side of one of the two limits, each branch represented by a straight segment whose origin is a point located on the path at the current time and whose terminus is a point located at a determined distance away from the point of origin, the slope of the straight segment representative of the tangent to the predicted trajectory at the current time.

Method for computing and representing deviations from the trajectory of an aircraft in flight

A method for three-dimensional graphic representation of the outside landscape in an on-board display system for aircraft comprises a graphical computer and a display screen. The graphic representation is computed to a visibility distance. In the method the zero pitch line of the aircraft forms, with the real horizon line, a first angle, the line representing the limit of the visibility distance forming, with the real horizon line, a second angle, in a first step, the graphical computer determines the maximum visibility distance such that the difference between the first angle and the second angle remains less than a determined value; in a second step, the graphical computer determines the visibility distance as a function of the maximum visibility distance, of the maximum altitude of the relief of the local environment and of the flight phase.

Method for automatically adapting the range of visibility in a three-dimensional synthetic representation of the outside landscape in an on-board display system for aircraft

The general field of the invention is that of synthetic vision systems for a vehicle, said vehicle having a particular navigation direction. The system in accordance with the invention includes at least:

Synthetic vision system including means for modifying the displayed view

The general field of the invention is that of methods for three-dimensional conformal representation of a terrain. The method is used in a piloting and navigation assistance system of an aircraft. The assistance system comprises a navigation system, a cartographic database, electronic calculation means a meteorological database and a display system allowing the superimposition of synthetic images on the exterior. The method comprises the following steps: Step 1: Calculation, for a determined position of the vehicle, of the terrain perceptible through the display system; Step 2: Selection of a part of the said terrain as a function of a distance or of an altitude or of a range of altitudes; Step 3: Calculation of a three-dimensional conformal cartographic representation of the said selected part of the terrain; and Step 4: Display of the said cartographic representation by the display system.

Method for synthetic three-dimensional conformal representation of terrain cartography as a function of visibility

A navigation aid information display device of an aircraft and primary flight display for an aircraft are disclosed. In one aspect, the navigation aid information display system includes a display screen including at least one first display area configured to display a first altitude scale including graduations, the current altitude of the aircraft on the first scale, and set altitude value. The graduations of the first scale are distributed on an arc of a first disc including a first needle centered in the disc and the first needle is configured to indicate the current altitude on the first scale. The distribution of the graduations on the arc is nonlinear and symmetrical relative to a graduation corresponding to the set altitude value and defines extension graduations decreasing from the set altitude value.

Navigation aid information display device of an aircraft and primary flight display for an aircraft

The general field of the invention is that of devices for display and control of setpoints for automatic piloting for aircraft, configured to display the setpoints of speed, heading, climb slope and altitude. The various setpoints are displayed in the form of a graphical representation comprising: wheels graduated in speed and in altitude indicating the aircraft setpoint values; a circular heading rose, graduated and centered on a first symbol representing the aircraft, the heading setpoint being indicated by a second symbol representing the heading to be followed by the aircraft and disposed around the perimeter of the heading rose; and a vertical sectional view comprising a graduated semicircle centered on a third symbol representing the aircraft, the slope setpoint being indicated by a fourth symbol representing the slope to be followed by the aircraft and disposed around the perimeter of the semicircle.

Device for display and control of setpoints for automatic piloting for aircraft

An aircraft guidance system for assisting in airport navigation includes: at least one airport database comprising topology data of an airport, called airport DB; at least one configuration database comprising aircraft configuration data and the position of a guidance point; a positioning system delivering aircraft kinematic and attitude parameters; at least one computer generating a 2D view of the representation of the airport notably comprising navigation indications and a representation of the aircraft; and at least one display for displaying the representation of the airport. In the system, a first symbol is generated on the display indicating the position of an early guidance point, corresponding to the position of the guidance point at a future time.

Aircraft guidance system for assisting in airport navigation

The field of the invention is that of methods of synthesizing cartographic images presented on display devices. This method is applied more specifically to visual flight on rotary-wing aircraft. The method according to the invention is used to present the useful aeronautical map information superimposed on a conventional altimetric presentation of the terrain being flown over, while retaining a legibility that is acceptable to the user. Flight safety is thus significantly reinforced. To obtain an enhanced legibility, the method displays only the aeronautical zones included in an altitude band corresponding to the flight phase of the aircraft and dependent on the geographic location and the vertical position of the aircraft. The method is used to display the cartographic representation either on a single window comprising a plan view of the terrain being flown over, or on two windows respectively representing a plan view and a cross-sectional view of the terrain being flown over.

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Pessac, France

Xavier Servantie