A method for aircraft trajectory planning includes computing an updated global flight trajectory for an aircraft from a current position to a second location using an objective function. The computing system repeats computes the data corresponding to the updated global flight trajectory at a frequency no less than fifty millihertz as the aircraft flies towards the second location. The method also includes computing autonomous control instructions for the aircraft to fly along the updated global flight trajectory.

An energy storage management system and a flight planning system and related methods and program products for an electric aircraft are provided. Systems include a computing device configured to: calculate a performance capability envelope of an energy storage system for an electric aircraft based on a mission profile for a future usage period of the energy storage system and a computational model of the energy storage system. The mission profile includes at least one of an expected energy demand and an expected power demand during at least a portion of a flight of the electric aircraft. The computing device implements a corrective action, such as conducting a performance recovery routine, in response to a comparison of the mission profile to the calculated performance capability envelope indicating a performance deficiency where the energy storage system cannot meet the mission profile within a preset tolerance. The computational model considers memory effect degradation.

An energy storage management system and a flight planning system and related methods and program products for an electric aircraft are provided. Systems include a computing device configured to: calculate a performance capability envelope of an energy storage system for an electric aircraft based on a mission profile for a future usage period of the energy storage system and a computational model of the energy storage system. The mission profile includes at least one of an expected energy demand and an expected power demand during at least a portion of a flight of the electric aircraft. The computing device implements a corrective action, such as conducting a performance recovery routine, in response to a comparison of the mission profile to the calculated performance capability envelope indicating a performance deficiency where the energy storage system cannot meet the mission profile within a preset tolerance. The computational model considers memory effect degradation.

A method for automatically proposing an air conflict resolution, the method includes a step of receiving air conflict and air situation data at a time when an air conflict is detected, the method comprising the steps of: determining a conflict category associated with the detected air conflict based on the conflict data; determining a degree of relevance in proposing a resolution to the air conflict according to the category and the air situation; determining one or more types of resolution to be applied to resolve the detected air conflict according to the degree of relevance; determining set of alternative trajectories corresponding to the one or more types of resolution; determining a set of candidate trajectories from among the set of alternative trajectories, a candidate trajectory being an alternative trajectory which does not generate an air conflict; selecting, from among the candidate trajectories, a candidate trajectory which fulfills a selection criterion relating to the operational relevance of the candidate trajectories and to the acceptability of the candidate trajectories by the flight plan management system; returning the candidate trajectory, the candidate trajectory being saved and re-evaluated as long as it does not generate an air conflict or has not been accepted by an air traffic controller.

A method for automatically proposing an air conflict resolution, the method includes a step of receiving air conflict and air situation data at a time when an air conflict is detected, the method comprising the steps of: determining a conflict category associated with the detected air conflict based on the conflict data; determining a degree of relevance in proposing a resolution to the air conflict according to the category and the air situation; determining one or more types of resolution to be applied to resolve the detected air conflict according to the degree of relevance; determining set of alternative trajectories corresponding to the one or more types of resolution; determining a set of candidate trajectories from among the set of alternative trajectories, a candidate trajectory being an alternative trajectory which does not generate an air conflict; selecting, from among the candidate trajectories, a candidate trajectory which fulfills a selection criterion relating to the operational relevance of the candidate trajectories and to the acceptability of the candidate trajectories by the flight plan management system; returning the candidate trajectory, the candidate trajectory being saved and re-evaluated as long as it does not generate an air conflict or has not been accepted by an air traffic controller.

A mobile device for travelling to a destination using a communication network is provided. The mobile device obtains from one or more network nodes in the communication network, a first path over a first sub-region of a region, comprising one or more sub-regions, towards the destination. The mobile device further follows the first path; and upon entering, or being in, a second sub-region of the region having a level of connectivity below a threshold, switches to follow a second path calculated locally at the mobile device.

A mobile device for travelling to a destination using a communication network is provided. The mobile device obtains from one or more network nodes in the communication network, a first path over a first sub-region of a region, comprising one or more sub-regions, towards the destination. The mobile device further follows the first path; and upon entering, or being in, a second sub-region of the region having a level of connectivity below a threshold, switches to follow a second path calculated locally at the mobile device.

A method and system for computing a mission plan for at least one aircraft powered by electric energy or by electric and fuel generated energy. The system is configured to receive input information including aircraft information, infrastructure information and flight routes information, and to implement modules for acquiring mission specifications, acquiring user preferences, and encoding the user preferences as a multi-criteria scoring scheme, selecting at least one electric energy consumption model and one electric energy charge model, based on the mission specifications, executing at least one multi-criteria constrained optimization algorithm, trained by machine learning, for mission planning, wherein each optimization algorithm is given as objective the multi-criteria scoring scheme, the optimization algorithm being further provided with the input information, mission specifications and the selected energy models, each optimization algorithm providing as output a mission plan including, for each aircraft, an electricity charging duration at each mission terminal.

A method and system for computing a mission plan for at least one aircraft powered by electric energy or by electric and fuel generated energy. The system is configured to receive input information including aircraft information, infrastructure information and flight routes information, and to implement modules for acquiring mission specifications, acquiring user preferences, and encoding the user preferences as a multi-criteria scoring scheme, selecting at least one electric energy consumption model and one electric energy charge model, based on the mission specifications, executing at least one multi-criteria constrained optimization algorithm, trained by machine learning, for mission planning, wherein each optimization algorithm is given as objective the multi-criteria scoring scheme, the optimization algorithm being further provided with the input information, mission specifications and the selected energy models, each optimization algorithm providing as output a mission plan including, for each aircraft, an electricity charging duration at each mission terminal.

A technique for building a modified entry trajectory profile for an aircraft to join a holding pattern at an entry waypoint despite the airspace available to build the entry trajectory being limited. In one aspect, instructions are received for an aircraft to join a holding pattern at an entry waypoint according to an entry trajectory profile. An airspace around the holding pattern is divided into sectors using the entry waypoint as a reference point. A discontinuity in the entry trajectory profile can be identified. In response to identifying the discontinuity in the entry trajectory profile, a modified entry trajectory profile can be built by i) determining the sector from which the aircraft would approach the entry waypoint with a current track angle of the aircraft moved to intersect the entry waypoint and with the aircraft pointing at the entry waypoint; and ii) generating the modified entry trajectory profile.