Joachim Hochwarth

General Electric | GE · GE Aviation Systems

To find failure events and their likelihoods in flight-critical systems, we investigate the use of an advanced black-box stress testing approach called adaptive stress testing. We analyze a trajectory predictor from a developmental commercial flight management system which takes as input a collection of lateral waypoints and en-route environmental...

This paper investigates the capability of the Extended Projected Profile (EPP) trajectory down-link definition to facilitate air-ground trajectory synchronisation. It will be demonstrated that the EPP allows for practically unambiguous description of aircraft intent, but that unknown aircraft performance characteristics such as climb thrust derate,...

A method and system of managing an aerial vehicle trajectory is provided. The remote trajectory management system (RTMS) for a fleet of aircraft includes an input specification module configured to manage information specifying flight-specific input data used to generate a trajectory, an aircraft model module including data that specifies a perform...

Methods and systems suitable for negotiating air traffic trajectory modification requests received from multiple aircraft that each has trajectory parameters. The methods include transmitting from at least a first aircraft a first trajectory modification request to alter the altitude, speed and/or lateral route thereof. A first conflict assessment...

A method and hold path computation system for automatically generating a hold path for an aircraft flying in a holding pattern, wherein the holding pattern is defined by one or more orbits within a selectable holding area are provided. The system includes a processor configured to receive a hold departure time indicating a time the aircraft is to l...

• It is shown that by including cost information in the downlinked trajectory it is possible to affect operations based on operator priorities • Knowledge of cost information by ground DSTs can be use for ranking alternative solutions, eliminating expensive air-ground negotiation • Use of normalized cost coefficients mitigates potential issues with...

It has been established that Trajectory Based Operations are a key component of future Air Traffic Management systems as currently underway in the United States with NextGen and Europe with SESAR. One of the major goals of Trajectory Based Operations is to provide participants accurate 4-Dimensional Trajectories predicting the future location of th...

The evolution of the Traffic Flow Management (TFM) and Air Traffic Control (ATC) systems towards Trajectory Based Operations (TBO) is constrained by the need to support a mixed fleet of aircraft for the foreseeable future. Trajectory synchronization and negotiation in particular are key enablers of TBO that need to take into account both the advanc...

The dramatic increase of air traffic over the last decade has caused the air traffic system to come to its full capacity. The projected growth indicates that the system will head into a gridlock in the near future. In order to reduce delays and other problems, several changes to the Air Traffic Management (ATM) system have been proposed. These chan...

This paper explains the design and computer implementation of a comprehensive dynamic air traffic system simulation program known as ComDATSS, currently under development at the University of Minnesota. ComDATSS simulates all essential components of an air traffic management system and their dynamic interactions. It provides a numerical testing env...