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A Numerical Framework and Benchmark Case study for Muti-modal Fuel - - PowerPoint PPT Presentation

Introduction Hybrid Optimal control Case Study Summary and Future Work The end A Numerical Framework and Benchmark Case study for Muti-modal Fuel Efficient Aircraft Conflict Avoidance Manuel Soler, Maryam Kamgarpour, and John Lygeros


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SLIDE 1

Introduction Hybrid Optimal control Case Study Summary and Future Work The end

A Numerical Framework and Benchmark Case study for Muti-modal Fuel Efficient Aircraft Conflict Avoidance

Manuel Soler, Maryam Kamgarpour, and John Lygeros Presented by Manuel Soler

Department of Bioengineering and Aerospace Engineering Universidad Carlos III de Madrid

  • ICRAT. Istanbul, Turkey. May 28th, 2014

Manuel Soler ICRAT’14

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SLIDE 2

Introduction Hybrid Optimal control Case Study Summary and Future Work The end

Outline

1

Introduction Motivation Description of the problem

2

Hybrid Optimal control Hybrid optimal control problem statement Solution approach

3

Case Study Problem set up Results

4

Summary and future work

Manuel Soler ICRAT’14

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SLIDE 3

Introduction Hybrid Optimal control Case Study Summary and Future Work The end

Outline

1

Introduction Motivation Description of the problem

2

Hybrid Optimal control Hybrid optimal control problem statement Solution approach

3

Case Study Problem set up Results

4

Summary and future work

Manuel Soler ICRAT’14

slide-4
SLIDE 4

Introduction Hybrid Optimal control Case Study Summary and Future Work The end

Outline

1

Introduction Motivation Description of the problem

2

Hybrid Optimal control Hybrid optimal control problem statement Solution approach

3

Case Study Problem set up Results

4

Summary and future work

Manuel Soler ICRAT’14

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SLIDE 5

Introduction Hybrid Optimal control Case Study Summary and Future Work The end

Outline

1

Introduction Motivation Description of the problem

2

Hybrid Optimal control Hybrid optimal control problem statement Solution approach

3

Case Study Problem set up Results

4

Summary and future work

Manuel Soler ICRAT’14

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SLIDE 6

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Motivation

Motivation

The future ATM is to be built around the so called Trajectory Based Operational (TBO) concept Trajectory Management Planning Sharing Agreeing Syncronizing Human in/over the loop Pilots Controllers Developing Human Decision Support tools for a safer, more efficient air navigation system

Manuel Soler ICRAT’14

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SLIDE 7

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Motivation

Motivation

The future ATM is to be built around the so called Trajectory Based Operational (TBO) concept Trajectory Management Planning Sharing Agreeing Syncronizing Human in/over the loop Pilots Controllers Developing Human Decision Support tools for a safer, more efficient air navigation system

Manuel Soler ICRAT’14

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SLIDE 8

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Motivation

Motivation

The future ATM is to be built around the so called Trajectory Based Operational (TBO) concept Trajectory Management Planning Sharing Agreeing Syncronizing Human in/over the loop Pilots Controllers Developing Human Decision Support tools for a safer, more efficient air navigation system

Manuel Soler ICRAT’14

slide-9
SLIDE 9

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Motivation

Motivation

The future ATM is to be built around the so called Trajectory Based Operational (TBO) concept Trajectory Management Planning Sharing Agreeing Syncronizing Human in/over the loop Pilots Controllers Developing Human Decision Support tools for a safer, more efficient air navigation system

Manuel Soler ICRAT’14

slide-10
SLIDE 10

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Motivation

Motivation

The future ATM is to be built around the so called Trajectory Based Operational (TBO) concept Trajectory Management Planning Sharing Agreeing Syncronizing Human in/over the loop Pilots Controllers Developing Human Decision Support tools for a safer, more efficient air navigation system

Manuel Soler ICRAT’14

slide-11
SLIDE 11

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Motivation

Motivation

The future ATM is to be built around the so called Trajectory Based Operational (TBO) concept Trajectory Management Planning Sharing Agreeing Syncronizing Human in/over the loop Pilots Controllers Developing Human Decision Support tools for a safer, more efficient air navigation system

Manuel Soler ICRAT’14

slide-12
SLIDE 12

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Motivation

Motivation

The future ATM is to be built around the so called Trajectory Based Operational (TBO) concept Trajectory Management Planning Sharing Agreeing Syncronizing Human in/over the loop Pilots Controllers Developing Human Decision Support tools for a safer, more efficient air navigation system

Manuel Soler ICRAT’14

slide-13
SLIDE 13

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Motivation

Motivation

The future ATM is to be built around the so called Trajectory Based Operational (TBO) concept Trajectory Management Planning Sharing Agreeing Syncronizing Human in/over the loop Pilots Controllers Developing Human Decision Support tools for a safer, more efficient air navigation system

Manuel Soler ICRAT’14

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SLIDE 14

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Motivation

Motivation

The future ATM is to be built around the so called Trajectory Based Operational (TBO) concept Trajectory Management Planning Sharing Agreeing Syncronizing Human in/over the loop Pilots Controllers Developing Human Decision Support tools for a safer, more efficient air navigation system

Manuel Soler ICRAT’14

slide-15
SLIDE 15

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Motivation

Motivation

The future ATM is to be built around the so called Trajectory Based Operational (TBO) concept Trajectory Management Planning Sharing Agreeing Syncronizing Human in/over the loop Pilots Controllers Developing Human Decision Support tools for a safer, more efficient air navigation system

Manuel Soler ICRAT’14

slide-16
SLIDE 16

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Motivation

Motivation

The future ATM is to be built around the so called Trajectory Based Operational (TBO) concept Trajectory Management Planning Sharing Agreeing Syncronizing Human in/over the loop Pilots Controllers Developing Human Decision Support tools for a safer, more efficient air navigation system

Manuel Soler ICRAT’14

slide-17
SLIDE 17

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Description of the problem

Description of the problem

Conflict avoidance Description of the problem The goal is to find optimal trajectories at the tactical level that avoid loss of separation minima. We take into account non-linear aircraft performance in order to analyze fuel consumption;

  • perational advisories (speed and heading advisories) as modes of the

system; The problem is formulated as a Hybrid Optimal Control Problem.

Manuel Soler ICRAT’14

slide-18
SLIDE 18

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Description of the problem

Description of the problem

Conflict avoidance Description of the problem The goal is to find optimal trajectories at the tactical level that avoid loss of separation minima. We take into account non-linear aircraft performance in order to analyze fuel consumption;

  • perational advisories (speed and heading advisories) as modes of the

system; The problem is formulated as a Hybrid Optimal Control Problem.

Manuel Soler ICRAT’14

slide-19
SLIDE 19

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Description of the problem

Description of the problem

Conflict avoidance Description of the problem The goal is to find optimal trajectories at the tactical level that avoid loss of separation minima. We take into account non-linear aircraft performance in order to analyze fuel consumption;

  • perational advisories (speed and heading advisories) as modes of the

system; The problem is formulated as a Hybrid Optimal Control Problem.

Manuel Soler ICRAT’14

slide-20
SLIDE 20

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Description of the problem

Description of the problem

Conflict avoidance Description of the problem The goal is to find optimal trajectories at the tactical level that avoid loss of separation minima. We take into account non-linear aircraft performance in order to analyze fuel consumption;

  • perational advisories (speed and heading advisories) as modes of the

system; The problem is formulated as a Hybrid Optimal Control Problem.

Manuel Soler ICRAT’14

slide-21
SLIDE 21

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Description of the problem

Description of the problem

Conflict avoidance Description of the problem The goal is to find optimal trajectories at the tactical level that avoid loss of separation minima. We take into account non-linear aircraft performance in order to analyze fuel consumption;

  • perational advisories (speed and heading advisories) as modes of the

system; The problem is formulated as a Hybrid Optimal Control Problem.

Manuel Soler ICRAT’14

slide-22
SLIDE 22

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Description of the problem

Description of the problem

Conflict avoidance Description of the problem The goal is to find optimal trajectories at the tactical level that avoid loss of separation minima. We take into account non-linear aircraft performance in order to analyze fuel consumption;

  • perational advisories (speed and heading advisories) as modes of the

system; The problem is formulated as a Hybrid Optimal Control Problem.

Manuel Soler ICRAT’14

slide-23
SLIDE 23

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Description of the problem

Description of the problem

Conflict avoidance Description of the problem The goal is to find optimal trajectories at the tactical level that avoid loss of separation minima. We take into account non-linear aircraft performance in order to analyze fuel consumption;

  • perational advisories (speed and heading advisories) as modes of the

system; The problem is formulated as a Hybrid Optimal Control Problem.

Manuel Soler ICRAT’14

slide-24
SLIDE 24

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Description of the problem

Description of the problem

Conflict avoidance Description of the problem The goal is to find optimal trajectories at the tactical level that avoid loss of separation minima. We take into account non-linear aircraft performance in order to analyze fuel consumption;

  • perational advisories (speed and heading advisories) as modes of the

system; The problem is formulated as a Hybrid Optimal Control Problem.

Manuel Soler ICRAT’14

slide-25
SLIDE 25

Introduction Hybrid Optimal control Case Study Summary and Future Work The end

Outline

1

Introduction Motivation Description of the problem

2

Hybrid Optimal control Hybrid optimal control problem statement Solution approach

3

Case Study Problem set up Results

4

Summary and future work

Manuel Soler ICRAT’14

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SLIDE 26

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Hybrid optimal control problem statement

Optimal control problem

J(t, x(t), u(t), l) t ∈ [tI , tF] ˙ x(t) = f [x(t), u(t), l] 0 = g[x(t), u(t), l] tI ˜ tF x(tI) = xI ψ(x(tF)) = 0 x(t) u∗(t) φ[x(t), u(t), l] ≤ 0

Manuel Soler ICRAT’14

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SLIDE 27

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Hybrid optimal control problem statement

Hybrid optimal control

J(t, x(t), u(t), l) t ∈ [tI , tF]

˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l] 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l]

tI ˜ tF x(tI) = xI ψ(x(tF)) = 0 x(t) u∗(t) φ[x(t), u(t), l] ≤ 0 w(t) ∈ {0, 1}

Manuel Soler ICRAT’14

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SLIDE 28

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Hybrid optimal control problem statement

Definition

Problem (Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

L(x(t), u(t), l)dt; subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; w(t) ∈ {0, 1}, Binary control functions; (OCP)

Manuel Soler ICRAT’14

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SLIDE 29

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Hybrid optimal control problem statement

Definition

Problem (Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

L(x(t), u(t), l)dt; subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; w(t) ∈ {0, 1}, Binary control functions; (OCP)

Manuel Soler ICRAT’14

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SLIDE 30

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Hybrid optimal control problem statement

Definition

Problem (Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

L(x(t), u(t), l)dt; subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; w(t) ∈ {0, 1}, Binary control functions; (OCP)

Manuel Soler ICRAT’14

slide-31
SLIDE 31

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Hybrid optimal control problem statement

Definition

Problem (Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

L(x(t), u(t), l)dt; subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; w(t) ∈ {0, 1}, Binary control functions; (OCP)

Manuel Soler ICRAT’14

slide-32
SLIDE 32

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Hybrid optimal control problem statement

Definition

Problem (Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

L(x(t), u(t), l)dt; subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; w(t) ∈ {0, 1}, Binary control functions; (OCP)

Manuel Soler ICRAT’14

slide-33
SLIDE 33

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Hybrid optimal control problem statement

Definition

Problem (Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

L(x(t), u(t), l)dt; subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; w(t) ∈ {0, 1}, Binary control functions; (OCP)

Manuel Soler ICRAT’14

slide-34
SLIDE 34

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Hybrid optimal control problem statement

Definition

Problem (Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

L(x(t), u(t), l)dt; subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; w(t) ∈ {0, 1}, Binary control functions; (OCP)

Manuel Soler ICRAT’14

slide-35
SLIDE 35

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Hybrid optimal control problem statement

Definition

Problem (Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

L(x(t), u(t), l)dt; subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; w(t) ∈ {0, 1}, Binary control functions; (OCP)

Manuel Soler ICRAT’14

slide-36
SLIDE 36

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Hybrid optimal control problem statement

Definition

Problem (Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

L(x(t), u(t), l)dt; subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; w(t) ∈ {0, 1}, Binary control functions; (OCP)

Manuel Soler ICRAT’14

slide-37
SLIDE 37

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Solution approach

Solution approach

Relaxation of binary constraints through a penalty term Relax w(t) ∈ [0, 1]. Define β : [t0, tf ] → [−1, 1], with β(t) = 2w(t) − 1. We define a penalty cost as C ·

1 |β(t)|d .

The resulting problem is a continuous optimal control problem. It is solved using a direct collocation method: transforming it into a NLP and using the NLP solver IPOPT.

Manuel Soler ICRAT’14

slide-38
SLIDE 38

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Solution approach

Solution approach

Relaxation of binary constraints through a penalty term Relax w(t) ∈ [0, 1]. Define β : [t0, tf ] → [−1, 1], with β(t) = 2w(t) − 1. We define a penalty cost as C ·

1 |β(t)|d .

The resulting problem is a continuous optimal control problem. It is solved using a direct collocation method: transforming it into a NLP and using the NLP solver IPOPT.

Manuel Soler ICRAT’14

slide-39
SLIDE 39

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Solution approach

Solution approach

Relaxation of binary constraints through a penalty term Relax w(t) ∈ [0, 1]. Define β : [t0, tf ] → [−1, 1], with β(t) = 2w(t) − 1. We define a penalty cost as C ·

1 |β(t)|d .

The resulting problem is a continuous optimal control problem. It is solved using a direct collocation method: transforming it into a NLP and using the NLP solver IPOPT.

Manuel Soler ICRAT’14

slide-40
SLIDE 40

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Solution approach

Solution approach

Relaxation of binary constraints through a penalty term Relax w(t) ∈ [0, 1]. Define β : [t0, tf ] → [−1, 1], with β(t) = 2w(t) − 1. We define a penalty cost as C ·

1 |β(t)|d .

The resulting problem is a continuous optimal control problem. It is solved using a direct collocation method: transforming it into a NLP and using the NLP solver IPOPT.

Manuel Soler ICRAT’14

slide-41
SLIDE 41

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Solution approach

Solution approach

Relaxation of binary constraints through a penalty term Relax w(t) ∈ [0, 1]. Define β : [t0, tf ] → [−1, 1], with β(t) = 2w(t) − 1. We define a penalty cost as C ·

1 |β(t)|d .

The resulting problem is a continuous optimal control problem. It is solved using a direct collocation method: transforming it into a NLP and using the NLP solver IPOPT.

Manuel Soler ICRAT’14

slide-42
SLIDE 42

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Solution approach

Solution approach

Relaxation of binary constraints through a penalty term Relax w(t) ∈ [0, 1]. Define β : [t0, tf ] → [−1, 1], with β(t) = 2w(t) − 1. We define a penalty cost as C ·

1 |β(t)|d .

The resulting problem is a continuous optimal control problem. It is solved using a direct collocation method: transforming it into a NLP and using the NLP solver IPOPT.

Manuel Soler ICRAT’14

slide-43
SLIDE 43

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Solution approach

Solution approach

Relaxation of binary constraints through a penalty term Relax w(t) ∈ [0, 1]. Define β : [t0, tf ] → [−1, 1], with β(t) = 2w(t) − 1. We define a penalty cost as C ·

1 |β(t)|d .

The resulting problem is a continuous optimal control problem. It is solved using a direct collocation method: transforming it into a NLP and using the NLP solver IPOPT.

Manuel Soler ICRAT’14

slide-44
SLIDE 44

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Solution approach

Approach

Problem (Relaxed Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

  • L(x(t), u(t), l) + C ·

1 |β(t)|d

  • dt;

subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; β(t) ∈ [−1, 1], auxiliary binary control functions; w(t) = 1 2(1 − β(t)), then w(t) ∈ [0, 1], binary control functions;

Manuel Soler ICRAT’14

slide-45
SLIDE 45

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Solution approach

Approach

Problem (Relaxed Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

  • L(x(t), u(t), l) + C ·

1 |β(t)|d

  • dt;

subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; β(t) ∈ [−1, 1], auxiliary binary control functions; w(t) = 1 2(1 − β(t)), then w(t) ∈ [0, 1], binary control functions;

Manuel Soler ICRAT’14

slide-46
SLIDE 46

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Solution approach

Approach

Problem (Relaxed Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

  • L(x(t), u(t), l) + C ·

1 |β(t)|d

  • dt;

subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; β(t) ∈ [−1, 1], auxiliary binary control functions; w(t) = 1 2(1 − β(t)), then w(t) ∈ [0, 1], binary control functions;

Manuel Soler ICRAT’14

slide-47
SLIDE 47

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Solution approach

Approach

Problem (Relaxed Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

  • L(x(t), u(t), l) + C ·

1 |β(t)|d

  • dt;

subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; β(t) ∈ [−1, 1], auxiliary binary control functions; w(t) = 1 2(1 − β(t)), then w(t) ∈ [0, 1], binary control functions;

Manuel Soler ICRAT’14

slide-48
SLIDE 48

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Solution approach

Approach

Problem (Relaxed Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

  • L(x(t), u(t), l) + C ·

1 |β(t)|d

  • dt;

subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; β(t) ∈ [−1, 1], auxiliary binary control functions; w(t) = 1 2(1 − β(t)), then w(t) ∈ [0, 1], binary control functions;

Manuel Soler ICRAT’14

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Introduction Hybrid Optimal control Case Study Summary and Future Work The end Solution approach

Approach

Problem (Relaxed Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

  • L(x(t), u(t), l) + C ·

1 |β(t)|d

  • dt;

subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; β(t) ∈ [−1, 1], auxiliary binary control functions; w(t) = 1 2(1 − β(t)), then w(t) ∈ [0, 1], binary control functions;

Manuel Soler ICRAT’14

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Introduction Hybrid Optimal control Case Study Summary and Future Work The end Solution approach

Approach

Problem (Relaxed Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

  • L(x(t), u(t), l) + C ·

1 |β(t)|d

  • dt;

subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; β(t) ∈ [−1, 1], auxiliary binary control functions; w(t) = 1 2(1 − β(t)), then w(t) ∈ [0, 1], binary control functions;

Manuel Soler ICRAT’14

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SLIDE 51

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Solution approach

Approach

Problem (Relaxed Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

  • L(x(t), u(t), l) + C ·

1 |β(t)|d

  • dt;

subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; β(t) ∈ [−1, 1], auxiliary binary control functions; w(t) = 1 2(1 − β(t)), then w(t) ∈ [0, 1], binary control functions;

Manuel Soler ICRAT’14

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SLIDE 52

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Solution approach

Approach

Problem (Relaxed Hybrid Optimal Control Problem) min J(t, x(t), u(t), l) = E(tF, x(tF)) + tF

tI

  • L(x(t), u(t), l) + C ·

1 |β(t)|d

  • dt;

subject to: ˙ x(t) = w(t) · f1[x(t), u(t), l] + (1 − w(t)) · f2[x(t), u(t), l], dynamic equations; 0 = w(t) · g1[x(t), u(t), l] + (1 − w(t)) · g2[x(t), u(t), l], algebraic equations; φl ≤ φ[x(t), u(t), l] ≤ φu, path constraints. x(tI ) = xI , initial boundary conditions; ψ(x(tF)) = 0, terminal boundary conditions; β(t) ∈ [−1, 1], auxiliary binary control functions; w(t) = 1 2(1 − β(t)), then w(t) ∈ [0, 1], binary control functions;

Manuel Soler ICRAT’14

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SLIDE 53

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Problem set up

Outline

1

Introduction Motivation Description of the problem

2

Hybrid Optimal control Hybrid optimal control problem statement Solution approach

3

Case Study Problem set up Results

4

Summary and future work

Manuel Soler ICRAT’14

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Introduction Hybrid Optimal control Case Study Summary and Future Work The end Problem set up

Aircraft dynamic equations

d dt           V χ γ λ θ he m           =            

T(t)−D(he(t),V (t),CL(t))−m(t)·g·sin γ(t) m(t) L(he(t),V (t),CL(t))·sin µ(t) m(t)·V (t)·cos γ(t) L(he(t),V (t),CL(t))·cos µ(t)−m(t)·g·cos γ(t) m(t)·V (t) V (t)·cos γ(t)·cos χ(t) R·cos θ(t) V (t)·cos γ(t)·sin χ(t) R

V (t) · sin γ(t) −T(t) · η(V (t))             . (1)

xe xw ye yw χ T D

(a) Top view

ye yw L ze zw µ mg

(b) Front view

xe xw T L D ze zw γ mg

(c) Lateral view

Figure: Aircraft state and forces

Manuel Soler ICRAT’14

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Introduction Hybrid Optimal control Case Study Summary and Future Work The end Problem set up

Minimum separation requirements

H = 1000 [ft] H = 1000 [ft]

(a) Vertical Separation

Rc = 5 [Nm]

(b) Horizontal Separation

Figure: Minimum required separation.

Manuel Soler ICRAT’14

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Introduction Hybrid Optimal control Case Study Summary and Future Work The end Problem set up

Advisories

∆hi ∆hj H Ac.j Ac.i Figure: Vertical advisories through climb/descend maneuver.

Manuel Soler ICRAT’14

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SLIDE 57

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Problem set up

Advisories

∆hi ∆hj H Ac.j Ac.i Figure: Vertical advisories through climb/descend maneuver. ∆Vj ∆χj Ac.j Ac.i ∆χi ∆Vi Rc Figure: Horizontal advisories through a turn maneuver.

Manuel Soler ICRAT’14

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Introduction Hybrid Optimal control Case Study Summary and Future Work The end Problem set up

Benchmarkt problem

Set up

Manuel Soler ICRAT’14

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Introduction Hybrid Optimal control Case Study Summary and Future Work The end Problem set up

Benchmarkt problem

Set up

Ac.4 Ac.6 Ac.2 Ac.8 Ac.3 Ac.5 Ac.1 Ac.7

Figure: Benchmark case study. The labeled points are initial position of the aircraft

  • n the horizontal plane. The original flight plan of aircraft is straight-line flight.

h = 11.000; nsamples = 50 (per aircraft)

Manuel Soler ICRAT’14

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Introduction Hybrid Optimal control Case Study Summary and Future Work The end Problem set up

Benchmarkt problem

Initial and final conditions

Table: Boundary values.

Initial values Final values m [kg] V [m/s] λe◦ θe◦ χ [deg] λe◦ θe◦

  • Ac. 1 55000

220 6 46.5 10 46.5

  • Ac. 2 55000

220 10 46.5 180 6 46.5

  • Ac. 3 55000

220 8 44.5 90 8 48.5

  • Ac. 4 55000

220 8 48.5 270 8 44.5

  • Ac. 5 55000

220 8 − 2 · √ 2/2 46.5 − 2 · √ 2/2 45 8 + 2 · √ 2/2 46.5 + 2 · √ 2/2

  • Ac. 6 55000

220 8 + 2 · √ 2/2 46.5 + 2 · √ 2/2 225 8 − 2 · √ 2/2 46.5 − 2 · √ 2/2

  • Ac. 7 55000

220 8 + 2 · √ 2/2 46.5 − 2 · √ 2/2 135 8 − 2 · √ 2/2 46.5 + 2 · √ 2/2

  • Ac. 8 55000

220 8 − 2 · √ 2/2 46.5 + 2 · √ 2/2 315 8 + 2 · √ 2/2 46.5 − 2 · √ 2/2

Manuel Soler ICRAT’14

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Introduction Hybrid Optimal control Case Study Summary and Future Work The end Problem set up

Number of advisories and combination of modes?

Manuel Soler ICRAT’14

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SLIDE 62

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Problem set up

Number of advisories and combination of modes?

∆χj Ac.j Ac.i ∆χi Rc Figure: Horizontal advisories through a turn maneuver.

Manuel Soler ICRAT’14

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SLIDE 63

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Problem set up

Number of advisories and combination of modes?

∆Vj Ac.j Ac.i ∆χi Rc Figure: Horizontal advisories through a turn maneuver.

Manuel Soler ICRAT’14

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SLIDE 64

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Problem set up

Number of advisories and combination of modes?

∆χj Ac.j Ac.i ∆Vi Rc Figure: Horizontal advisories through a turn maneuver.

Manuel Soler ICRAT’14

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SLIDE 65

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Problem set up

Number of advisories and combination of modes?

∆Vj Ac.j Ac.i ∆Vi Rc Figure: Horizontal advisories through a turn maneuver.

Undefined number of advisories (switches) and 4 different combination of modes per aircraft pair

Manuel Soler ICRAT’14

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SLIDE 66

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Problem set up

Number of advisories and combination of modes?

∆Vj Ac.j Ac.i ∆Vi Rc Figure: Horizontal advisories through a turn maneuver.

Undefined number of advisories (switches) and 4 different combination of modes per aircraft pair

Manuel Soler ICRAT’14

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SLIDE 67

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Results

Outline

1

Introduction Motivation Description of the problem

2

Hybrid Optimal control Hybrid optimal control problem statement Solution approach

3

Case Study Problem set up Results

4

Summary and future work

Manuel Soler ICRAT’14

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SLIDE 68

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Results

Optimal paths

Manuel Soler ICRAT’14

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Introduction Hybrid Optimal control Case Study Summary and Future Work The end Results

Binary control functions

50 0.5 1 AC 1 50 0.5 1 AC 2 50 0.5 1 AC 3 50 0.5 1 AC 4

Sampling times Sampling times Sampling times Sampling times

w(t) w(t) w(t) w(t)

(a) w(t) in Aircraft 1, 2, 3, 4

50 0.5 1 AC 5 50 0.5 1 AC 6 50 0.5 1 AC 7 50 0.5 1 AC 8

Sampling times Sampling times Sampling times Sampling times

w(t) w(t) w(t) w(t)

(b) w(t) in Aircraft 5, 6, 7, 8

Figure: Binary control functions w(t) as a function of the number of

  • samples. Note that w(t) = 1 represent herein control speed mode.

Manuel Soler ICRAT’14

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Introduction Hybrid Optimal control Case Study Summary and Future Work The end Results

Velocity and heading angle

10 20 30 40 50 150 200 250 AC 1 AC 2 AC 3 AC 4 AC 5 AC 6 AC 7 AC 8

Sampling times

V [m/s]

(a) V (t)

10 20 30 40 50 −50 50 100 150 200 250 300 350 AC 1 AC 2 AC 3 AC 4 AC 5 AC 6 AC 7 AC 8

Sampling times

χ [deg]

(b) T(t)

Figure: Velocity and heading at sampling times

Manuel Soler ICRAT’14

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Introduction Hybrid Optimal control Case Study Summary and Future Work The end Results

The remaining state and control variables

10 20 30 40 50 5.38 5.4 5.42 5.44 5.46 5.48 5.5 x 10

4

AC 1 AC 2 AC 3 AC 4 AC 5 AC 6 AC 7 AC 8

Sampling times

m [kg]

(a) m(t)

10 20 30 40 50 1 2 3 4 5 x 10

4

AC 1 AC 2 AC 3 AC 4 AC 5 AC 6 AC 7 AC 8

Sampling times

T [N]

(b) χ(t)

10 20 30 40 50 −15 −10 −5 5 10 15 20 AC 1 AC 2 AC 3 AC 4 AC 5 AC 6 AC 7 AC 8

Sampling times

µ [deg]

(c) µ(t)

Manuel Soler ICRAT’14

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Introduction Hybrid Optimal control Case Study Summary and Future Work The end Results

Table of Results

Table: Numerical Results.

Fuel consum. [kg] Time [s] num. advisories num. conflicts

  • Ac. 1

748.9 1420.4 7

  • Ac. 2

763.8 1431.8 6

  • Ac. 3

1098.4 2076.1 5

  • Ac. 4

1105 2053.7 5

  • Ac. 5

972.7 1860 4

  • Ac. 6

966 1754.7 3

  • Ac. 7

948.2 1792.2 1

  • Ac. 8

966.7 1772.6 2 Computational time: 6400 sec

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Introduction Hybrid Optimal control Case Study Summary and Future Work The end Results

Table of Results

Table: Numerical Results.

Fuel consum. [kg] Time [s] num. advisories num. conflicts

  • Ac. 1

748.9 1420.4 7

  • Ac. 2

763.8 1431.8 6

  • Ac. 3

1098.4 2076.1 5

  • Ac. 4

1105 2053.7 5

  • Ac. 5

972.7 1860 4

  • Ac. 6

966 1754.7 3

  • Ac. 7

948.2 1792.2 1

  • Ac. 8

966.7 1772.6 2 Computational time: 6400 sec

Manuel Soler ICRAT’14

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Introduction Hybrid Optimal control Case Study Summary and Future Work The end

Outline

1

Introduction Motivation Description of the problem

2

Hybrid Optimal control Hybrid optimal control problem statement Solution approach

3

Case Study Problem set up Results

4

Summary and future work

Manuel Soler ICRAT’14

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SLIDE 75

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Summary and future work

Summary

Summary a) We formulated fuel optimal conflict free aircraft trajectory planning as a hybrid optimal control problem. b) This formulation allowed for inclusion of accurate aircraft dynamic models and conflict resolution maneuvers that are consistent with air traffic control procedures. c) We developed an algorithm for solving the hybrid optimal control problem through transforming it to a nonlinear program. d) Our approach was illustrated with a case study with accurate civilian aircraft model, and realistic number of aircraft.

Manuel Soler ICRAT’14

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SLIDE 76

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Summary and future work

Summary

Summary a) We formulated fuel optimal conflict free aircraft trajectory planning as a hybrid optimal control problem. b) This formulation allowed for inclusion of accurate aircraft dynamic models and conflict resolution maneuvers that are consistent with air traffic control procedures. c) We developed an algorithm for solving the hybrid optimal control problem through transforming it to a nonlinear program. d) Our approach was illustrated with a case study with accurate civilian aircraft model, and realistic number of aircraft.

Manuel Soler ICRAT’14

slide-77
SLIDE 77

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Summary and future work

Summary

Summary a) We formulated fuel optimal conflict free aircraft trajectory planning as a hybrid optimal control problem. b) This formulation allowed for inclusion of accurate aircraft dynamic models and conflict resolution maneuvers that are consistent with air traffic control procedures. c) We developed an algorithm for solving the hybrid optimal control problem through transforming it to a nonlinear program. d) Our approach was illustrated with a case study with accurate civilian aircraft model, and realistic number of aircraft.

Manuel Soler ICRAT’14

slide-78
SLIDE 78

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Summary and future work

Summary

Summary a) We formulated fuel optimal conflict free aircraft trajectory planning as a hybrid optimal control problem. b) This formulation allowed for inclusion of accurate aircraft dynamic models and conflict resolution maneuvers that are consistent with air traffic control procedures. c) We developed an algorithm for solving the hybrid optimal control problem through transforming it to a nonlinear program. d) Our approach was illustrated with a case study with accurate civilian aircraft model, and realistic number of aircraft.

Manuel Soler ICRAT’14

slide-79
SLIDE 79

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Summary and future work

Summary

Summary a) We formulated fuel optimal conflict free aircraft trajectory planning as a hybrid optimal control problem. b) This formulation allowed for inclusion of accurate aircraft dynamic models and conflict resolution maneuvers that are consistent with air traffic control procedures. c) We developed an algorithm for solving the hybrid optimal control problem through transforming it to a nonlinear program. d) Our approach was illustrated with a case study with accurate civilian aircraft model, and realistic number of aircraft.

Manuel Soler ICRAT’14

slide-80
SLIDE 80

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Summary and future work

On-going and future work

The above presented work corresponds to a preliminary study that should be further explored and extended. Ongoing and future work includes: Implement the algorithm in a real air traffic control (ATC) sector, considering first a single FL and then extending it considering a vertical structure. Introduce arrival time constraints at the exit waypoints in order not to disrupt the air traffic system downwards due to aircraft flying ahead/behind schedule. Include wind forecasts into aircraft dynamics and take into account the uncertainty in the forecast and its propagation along the trajectories. Drastic reduction of the computational time in order to be able to run the algorithm in real time. Impose constraints in the maximum number of advisories. Analyzing Pareto optimality of the solution to ensure fair advisories for each aircraft. Increase the number of samples in order to improve the conflict detection sensitivity of the algorithm. Comparison of fuel savings resulting from the algorithm with respect to current conflict resolution procedures. Trust and acceptance test by pilots and air traffic controllers.

Manuel Soler ICRAT’14

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SLIDE 81

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Summary and future work

On-going and future work

The above presented work corresponds to a preliminary study that should be further explored and extended. Ongoing and future work includes: Implement the algorithm in a real air traffic control (ATC) sector, considering first a single FL and then extending it considering a vertical structure. Introduce arrival time constraints at the exit waypoints in order not to disrupt the air traffic system downwards due to aircraft flying ahead/behind schedule. Include wind forecasts into aircraft dynamics and take into account the uncertainty in the forecast and its propagation along the trajectories. Drastic reduction of the computational time in order to be able to run the algorithm in real time. Impose constraints in the maximum number of advisories. Analyzing Pareto optimality of the solution to ensure fair advisories for each aircraft. Increase the number of samples in order to improve the conflict detection sensitivity of the algorithm. Comparison of fuel savings resulting from the algorithm with respect to current conflict resolution procedures. Trust and acceptance test by pilots and air traffic controllers.

Manuel Soler ICRAT’14

slide-82
SLIDE 82

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Summary and future work

On-going and future work

The above presented work corresponds to a preliminary study that should be further explored and extended. Ongoing and future work includes: Implement the algorithm in a real air traffic control (ATC) sector, considering first a single FL and then extending it considering a vertical structure. Introduce arrival time constraints at the exit waypoints in order not to disrupt the air traffic system downwards due to aircraft flying ahead/behind schedule. Include wind forecasts into aircraft dynamics and take into account the uncertainty in the forecast and its propagation along the trajectories. Drastic reduction of the computational time in order to be able to run the algorithm in real time. Impose constraints in the maximum number of advisories. Analyzing Pareto optimality of the solution to ensure fair advisories for each aircraft. Increase the number of samples in order to improve the conflict detection sensitivity of the algorithm. Comparison of fuel savings resulting from the algorithm with respect to current conflict resolution procedures. Trust and acceptance test by pilots and air traffic controllers.

Manuel Soler ICRAT’14

slide-83
SLIDE 83

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Summary and future work

On-going and future work

The above presented work corresponds to a preliminary study that should be further explored and extended. Ongoing and future work includes: Implement the algorithm in a real air traffic control (ATC) sector, considering first a single FL and then extending it considering a vertical structure. Introduce arrival time constraints at the exit waypoints in order not to disrupt the air traffic system downwards due to aircraft flying ahead/behind schedule. Include wind forecasts into aircraft dynamics and take into account the uncertainty in the forecast and its propagation along the trajectories. Drastic reduction of the computational time in order to be able to run the algorithm in real time. Impose constraints in the maximum number of advisories. Analyzing Pareto optimality of the solution to ensure fair advisories for each aircraft. Increase the number of samples in order to improve the conflict detection sensitivity of the algorithm. Comparison of fuel savings resulting from the algorithm with respect to current conflict resolution procedures. Trust and acceptance test by pilots and air traffic controllers.

Manuel Soler ICRAT’14

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SLIDE 84

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Summary and future work

On-going and future work

The above presented work corresponds to a preliminary study that should be further explored and extended. Ongoing and future work includes: Implement the algorithm in a real air traffic control (ATC) sector, considering first a single FL and then extending it considering a vertical structure. Introduce arrival time constraints at the exit waypoints in order not to disrupt the air traffic system downwards due to aircraft flying ahead/behind schedule. Include wind forecasts into aircraft dynamics and take into account the uncertainty in the forecast and its propagation along the trajectories. Drastic reduction of the computational time in order to be able to run the algorithm in real time. Impose constraints in the maximum number of advisories. Analyzing Pareto optimality of the solution to ensure fair advisories for each aircraft. Increase the number of samples in order to improve the conflict detection sensitivity of the algorithm. Comparison of fuel savings resulting from the algorithm with respect to current conflict resolution procedures. Trust and acceptance test by pilots and air traffic controllers.

Manuel Soler ICRAT’14

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SLIDE 85

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Summary and future work

On-going and future work

The above presented work corresponds to a preliminary study that should be further explored and extended. Ongoing and future work includes: Implement the algorithm in a real air traffic control (ATC) sector, considering first a single FL and then extending it considering a vertical structure. Introduce arrival time constraints at the exit waypoints in order not to disrupt the air traffic system downwards due to aircraft flying ahead/behind schedule. Include wind forecasts into aircraft dynamics and take into account the uncertainty in the forecast and its propagation along the trajectories. Drastic reduction of the computational time in order to be able to run the algorithm in real time. Impose constraints in the maximum number of advisories. Analyzing Pareto optimality of the solution to ensure fair advisories for each aircraft. Increase the number of samples in order to improve the conflict detection sensitivity of the algorithm. Comparison of fuel savings resulting from the algorithm with respect to current conflict resolution procedures. Trust and acceptance test by pilots and air traffic controllers.

Manuel Soler ICRAT’14

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SLIDE 86

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Summary and future work

On-going and future work

The above presented work corresponds to a preliminary study that should be further explored and extended. Ongoing and future work includes: Implement the algorithm in a real air traffic control (ATC) sector, considering first a single FL and then extending it considering a vertical structure. Introduce arrival time constraints at the exit waypoints in order not to disrupt the air traffic system downwards due to aircraft flying ahead/behind schedule. Include wind forecasts into aircraft dynamics and take into account the uncertainty in the forecast and its propagation along the trajectories. Drastic reduction of the computational time in order to be able to run the algorithm in real time. Impose constraints in the maximum number of advisories. Analyzing Pareto optimality of the solution to ensure fair advisories for each aircraft. Increase the number of samples in order to improve the conflict detection sensitivity of the algorithm. Comparison of fuel savings resulting from the algorithm with respect to current conflict resolution procedures. Trust and acceptance test by pilots and air traffic controllers.

Manuel Soler ICRAT’14

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SLIDE 87

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Summary and future work

On-going and future work

The above presented work corresponds to a preliminary study that should be further explored and extended. Ongoing and future work includes: Implement the algorithm in a real air traffic control (ATC) sector, considering first a single FL and then extending it considering a vertical structure. Introduce arrival time constraints at the exit waypoints in order not to disrupt the air traffic system downwards due to aircraft flying ahead/behind schedule. Include wind forecasts into aircraft dynamics and take into account the uncertainty in the forecast and its propagation along the trajectories. Drastic reduction of the computational time in order to be able to run the algorithm in real time. Impose constraints in the maximum number of advisories. Analyzing Pareto optimality of the solution to ensure fair advisories for each aircraft. Increase the number of samples in order to improve the conflict detection sensitivity of the algorithm. Comparison of fuel savings resulting from the algorithm with respect to current conflict resolution procedures. Trust and acceptance test by pilots and air traffic controllers.

Manuel Soler ICRAT’14

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SLIDE 88

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Summary and future work

On-going and future work

The above presented work corresponds to a preliminary study that should be further explored and extended. Ongoing and future work includes: Implement the algorithm in a real air traffic control (ATC) sector, considering first a single FL and then extending it considering a vertical structure. Introduce arrival time constraints at the exit waypoints in order not to disrupt the air traffic system downwards due to aircraft flying ahead/behind schedule. Include wind forecasts into aircraft dynamics and take into account the uncertainty in the forecast and its propagation along the trajectories. Drastic reduction of the computational time in order to be able to run the algorithm in real time. Impose constraints in the maximum number of advisories. Analyzing Pareto optimality of the solution to ensure fair advisories for each aircraft. Increase the number of samples in order to improve the conflict detection sensitivity of the algorithm. Comparison of fuel savings resulting from the algorithm with respect to current conflict resolution procedures. Trust and acceptance test by pilots and air traffic controllers.

Manuel Soler ICRAT’14

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SLIDE 89

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Summary and future work

On-going and future work

The above presented work corresponds to a preliminary study that should be further explored and extended. Ongoing and future work includes: Implement the algorithm in a real air traffic control (ATC) sector, considering first a single FL and then extending it considering a vertical structure. Introduce arrival time constraints at the exit waypoints in order not to disrupt the air traffic system downwards due to aircraft flying ahead/behind schedule. Include wind forecasts into aircraft dynamics and take into account the uncertainty in the forecast and its propagation along the trajectories. Drastic reduction of the computational time in order to be able to run the algorithm in real time. Impose constraints in the maximum number of advisories. Analyzing Pareto optimality of the solution to ensure fair advisories for each aircraft. Increase the number of samples in order to improve the conflict detection sensitivity of the algorithm. Comparison of fuel savings resulting from the algorithm with respect to current conflict resolution procedures. Trust and acceptance test by pilots and air traffic controllers.

Manuel Soler ICRAT’14

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SLIDE 90

Introduction Hybrid Optimal control Case Study Summary and Future Work The end Summary and future work

On-going and future work

The above presented work corresponds to a preliminary study that should be further explored and extended. Ongoing and future work includes: Implement the algorithm in a real air traffic control (ATC) sector, considering first a single FL and then extending it considering a vertical structure. Introduce arrival time constraints at the exit waypoints in order not to disrupt the air traffic system downwards due to aircraft flying ahead/behind schedule. Include wind forecasts into aircraft dynamics and take into account the uncertainty in the forecast and its propagation along the trajectories. Drastic reduction of the computational time in order to be able to run the algorithm in real time. Impose constraints in the maximum number of advisories. Analyzing Pareto optimality of the solution to ensure fair advisories for each aircraft. Increase the number of samples in order to improve the conflict detection sensitivity of the algorithm. Comparison of fuel savings resulting from the algorithm with respect to current conflict resolution procedures. Trust and acceptance test by pilots and air traffic controllers.

Manuel Soler ICRAT’14

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Introduction Hybrid Optimal control Case Study Summary and Future Work The end

The end

Thank you for your attention Questions?

Contact Info Department of Bioengineering and Aerospace Engineering. Universidad Carlos III; Phone: +34 91 624 8219; mail: masolera@ing.uc3m.es Group site: http://aero.uc3m.es Personal site: http://www.aerospaceengineering.es

Manuel Soler ICRAT’14

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SLIDE 92

Introduction Hybrid Optimal control Case Study Summary and Future Work The end

The end

Thank you for your attention Questions?

Contact Info Department of Bioengineering and Aerospace Engineering. Universidad Carlos III; Phone: +34 91 624 8219; mail: masolera@ing.uc3m.es Group site: http://aero.uc3m.es Personal site: http://www.aerospaceengineering.es

Manuel Soler ICRAT’14

slide-93
SLIDE 93

Introduction Hybrid Optimal control Case Study Summary and Future Work The end

The end

Thank you for your attention Questions?

Contact Info Department of Bioengineering and Aerospace Engineering. Universidad Carlos III; Phone: +34 91 624 8219; mail: masolera@ing.uc3m.es Group site: http://aero.uc3m.es Personal site: http://www.aerospaceengineering.es

Manuel Soler ICRAT’14

slide-94
SLIDE 94

Introduction Hybrid Optimal control Case Study Summary and Future Work The end

The end

Thank you for your attention Questions?

Contact Info Department of Bioengineering and Aerospace Engineering. Universidad Carlos III; Phone: +34 91 624 8219; mail: masolera@ing.uc3m.es Group site: http://aero.uc3m.es Personal site: http://www.aerospaceengineering.es

Manuel Soler ICRAT’14