Optimizing a parametric model of aircraft performance

Abstract

Methods and systems for optimizing the flight of an aircraft are disclosed. The trajectory is divided into segments, each of the segments being governed by distinct sets of equations, depending on engine thrust mode and on vertical guidance (climb, cruise or descent). By assuming two, aerodynamic and engine-speed, models, data from flight recordings are received and a number of parameters from a parameter-optimization engine is iteratively determined by applying a least-squares calculation until a predefined minimality criterion is satisfied. The parameter optimization engine is next used to predict the trajectory point following a given point. Software aspects and system (e.g. FMS and / or EFB) aspects are described.

Description

technical field [0001] In general terms, the present invention relates to the field of avionics. In particular, the present invention relates to methods and systems for optimizing all or some operations of an aircraft. Background technique [0002] Methods known from the prior art (eg WO 2017042166 or US9290262) are generally based on datasets modeling the performance of the aircraft. Although these performance data are known to aircraft manufacturers, they are generally not published, which presents a significant obstacle to the development of methods for optimizing aircraft operation. [0003] Furthermore, when the data are disclosed, the data (generally) describe the behavior of the aircraft type, not the behavior of a specific aircraft (ie, the data is not specific). Finally, model airplanes may not be royalty-free. [0004] Producers of systems for optimizing aircraft operation must use, where appropriate, performance data provided by the aircraft manufacturer, and m...

AI Technical Summary

Problems solved by technology

In fact, these methods are often not robust to variations in the actual behavior of a given aircraft compared to the behavior of the "average" (modeled) aircraft

Images