摘要:
The subject of the present invention is a method for improving route and 4D prediction calculations by FMS in the framework of ATC tactical flight instructions, which method enables the FMS of an aircraft to carry out its usual predictions as precisely as possible when it has left or anticipates leaving its initial flight plan following an instruction from the air traffic controller, and has no instructions telling it where and when to return to the initial flight plan, and the invention is characterized in that it consists in transmitting to the aircraft, from an air traffic control centre, information enabling the FMS system to be aware of traffic crossing points (X1) and control sector changes, and to use this information to predict the coordinates of a point (X2) at which it is supposed to rejoin its initial flight plan at the earliest opportunity after the crossing point that required an alteration of trajectory and at the latest opportunity on the last point of the current sector.
摘要:
The invention relates to a method of changing the approach procedure of an aircraft comprising steps of selecting a new landing runway of the destination airport and of selecting a landing aid system or non-precision approach procedure associated with this runway. The selection steps comprise an automatic selection of a pair associating the new landing runway with the landing aid system or with the non-precision approach procedure, the pair originating from a database containing the pairs related to the destination airport.
摘要:
The invention relates to a method for assisting low-altitude navigation of an aircraft equipped with a system suited to determining a flight-plan ground trajectory based on intermediate points P at an altitude alt(P), and the aircraft's performance. It comprises the following steps: for each point P, calculating a safe altitude, alt safe, to obtain a point Psafe, calculating a safe profile formed from segments joining the points Psafe, extracting summits S from among the points Psafe, determining the aircraft's weight at these points S as a function of the distance between the aircraft and S and of its consumption over this distance, where the consumption is one aspect of its performance, for each point S, determining the maximum climb slope MaxClimbFPA and the maximum descent slope MaxDescFPA as a function of the performance and the weight, defining two performance segments which have slopes MaxClimbFPA and MaxDescFPA on either side of the point S and calculating a performance profile formed from performance segments and which makes it possible to associate at each point P of the safe profile a performance altitude, alt perf (P).
摘要:
The invention relates to a method of automatic navigation assistance for an aircraft. A capture zone being a zone in which the aircraft can capture a predetermined vertical profile segment by applying a transition between the guidance submode which the aircraft is in and the guidance submode adapted to the following of the vertical profile segment to be captured, it comprises the step consisting in determining the width of the capture zone as a function of the height h of the vertical profile to be captured and of the speed v which the aircraft has when plumb with this height when the aircraft is not on the profile or at this height when the aircraft is on the profile.
摘要:
Method for piloting a vehicle while making a change of heading. The vehicle follows a first rectilinear portion of a route, so as to meet up with a second rectilinear portion of the route forming a predetermined angle with the first portion. The route passes through the meeting point of the two portions. The vehicle computes and follows a curved change of heading trajectory which passes through the meeting point whose turning center lies on the interior bisector of the angle formed by the two portions of the route.
摘要:
The disclosed method is implemented by a system aboard an aerodyne comprising a processor, a terminal and memories in which there are stored all the information necessary for the carrying out of a flight, the system being connected to the other on-board electronic equipment. In order to define a new flight plan to meet a new situation caused by an event, the method comprises: the interpretation of the event to determine the corrective actions to be undertaken given the context in which the aerodyne is located, the analysis of the possibilities of reconfiguring the flight plan that correspond to the corrective actions, according to predetermined and modifiable criteria, the selection of the flight plan solutions that meet the predetermined criteria, and the presenting of these flight plan solutions in association with the significant parameters that have served as the grounds for their selection.