Guidance and Control Programs at Honeywell

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Guidance and ControlPrograms at Honeywell

• Sanjay Parthasarathy
• Honeywell Aerospace Advanced Technology
• October 11, 2006
• sanjay.parthasarathy_at_honeywell.com

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Update since Fall, 2005

• Autonomous Systems programs
• Micro Air Vehicle (MAV)
• FCS Class 1 vehicle
• Increase endurance
• Organic Air Vehicle 2 (OAV-2)
• Phase 3a commenced
• Obstacle Avoidance Demonstrated Successfully
• Heterogeneous Urban RSTA Teams (HURT)
• Planning and Control (PC) software
• Coverage Planner, Vehicle Tracker developed
• Successful Demonstration using 4 UAVs
• Air Traffic Management (ATM) Modernization
• Single European Sky ATM Research (SESAR) program
• US Industry Input via Boeing, Rockwell-Collins
  and Honeywell
• ERASMUS program kicked-off

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ERASMUS Project 2006-2008

• En Route Air Traffic Soft Management Ultimate
  System
• Funded by European Commission
• ERASMUS project proposes an air-ground
  cooperative work aiming at defining and
  validating innovative automation and concepts of
  operations for the En-route phase. The goal is to
  propose an advanced automation while maintaining
  the controllers in the decision loop.
• Three majors applications are proposed to be
  investigated
• Enhanced Medium Term Conflict Detection (MTCD)
• ATC autopilot
• subliminal control.

Team Lead EuroControl Industrial Partner
Honeywell Kickoff meeting May 11-12, 2006
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ERASMUS

• Hypothesis
• Air Traffic Controller (ATC) perceives many
  situations as potential conflicts
• Small changes in speed and/or Rate of climb can
  convert a conflict into a non-conflict
• An auto-pilot for the ATC can reduce workload
  and increase safety
• ATC need not consciously observe every small
  change to speed and altitude issued by the
  computer

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En Route Air Traffic Soft Management Ultimate
System(ERASMUS)

• Air Traffic Controller (ATC) perceives many
  situations as conflicts
• Lacks precise knowledge of aircraft trajectory
• Human Factors visualizes entire sector on
  limited screens
• Lacks computational tools to advise if indeed
  there is a conflict
• Staggers traffic resulting in
  inefficient operations
• Small changes in speed and/or Rate of climb can
  convert a conflict into a non-conflict
• Need better 4D Trajectory Prediction
• Ground-based v/s on-board FMS
• Weather and aircraft parameters are main
  variables
• Need Conflict Detection and Resolution (CDR)
  algorithms
• ATC need not consciously observe every small
  change to speed and altitude issued by the
  computer
• Use 4D-trajectory predictions to optimize flights
• Uplink minimal speed/altitude change
• Human-in-the-loop subliminal control can be
  over-ridden

Eases workload and increases airspace capacity
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ERASMUS Objectives 3 applications
Full automation path Low
Subliminal control
ATC Autopilot
High
Machine decision
Enhanced MTCD
Not Applicable
Low
High
Low
Human decision (ultimate control in any cases)
Courtesy of Eurocontrol
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Future Research

• 4D Trajectory prediction and downlink to ATC
• Optimal flight path generation for aircrafts in
  sector
• CDR
• Green ATM
• 4D Trajectory negotiation
• Air-to-ground
• Air-to-air
• Dovetails with Required Time of Arrival (RTA),
  Required Navigational Performance (RNP)

Region of Off-Idle Descent
Cruise
Descent Mach
T/D
Descent CAS
RTA
Decel
T/D
Region of RTA Speed Adjustment
RTA
First Constraint or Speed Transition