Introduction to Automatic Control презентация

Month 200X 2009 Subject Name Automotive Automatic Control Page 2 Reference Book “Modern Control Engineering”, Katsuhiko Ogata, Prentice Hall. “Automotive Control Systems for

Слайд 12009 Lecture Slide

Lecture by





Chapter One
week1
January 2009
Introduction to Automatic Control

Control
Engineering







Слайд 2Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
Reference Book


“Modern

Control Engineering”, Katsuhiko Ogata,
Prentice Hall.
“Automotive Control Systems for Engine, Driveline
and Vehicle”, U.Kiencke and L.Nielsen, Springer.
“Stabilization and Regulation of Nonlinear Systems. A Robust and Adaptive Approach” Zhiyong Chen • Jie Huang. 2014.
Khalil H (2002) Nonlinear systems. Prentice Hall, New Jersey
Isidori A (1999) Nonlinear control systems, 3rd edn. Springer, New York


Control
Engineering


Слайд 3Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
How is it

important?


Good Improved control is a key enabling technology
underpinning:
- generally
- Convenience and Comfort
- doctor
- Precision of tools
- industry
- Enhance product quality
- Waste minimization
- Higher safety margins


Control
Engineering


Слайд 4Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
What is Control

System?





Control
Engineering

Open-Loop Control System (No feedback)


Слайд 5Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
What is Control

System? (2)





Control
Engineering

Dynamic Response Open-Loop Control System (No feedback)


Слайд 6Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
What is Control

System? (3)





Control
Engineering

Feedback

Feedback is a key tool that can be used to modify the
behavior of a system.
This behavior altering effect of feedback is a key
mechanism that control engineers exploit deliberately
to achieve the objective of acting on a system to
ensure that the desired performance specifications
are achieved.


Слайд 7Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
What is Control

System? (4)





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Engineering

Closed-Loop Control System (No feedback)


Слайд 8Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
What is Control

System? (5)





Control
Engineering

Response of a position control system showing effect of high and low controller gain on the output response


Слайд 9Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
Example Control System?

(1)





Control
Engineering

Temperature Control System ( Heater or Air Condition )


Слайд 10Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
Example Control System?

(2)





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Engineering

Open Loop

Closed Loop


Слайд 11Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
Example Control System?

(3)





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Engineering

Vehicle Control System


Слайд 12Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
Example Control System?

(4)





Control
Engineering

Autopilot Control System


Слайд 13Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
Control System Design

Cycle





Control
Engineering


Слайд 14Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
Modeling & Design

in Control

I. DYNAMIC MODELING
Deriving a dynamic model ( = set of differential
equations that describes the dynamic behavior of the plant)
Linearization the dynamic model if necessary

II. DESIGN OF A CONTROLLER: Several design methods
Classical control or Root Locus Design:
Define the transfer function; Apply root locus, loop shaping,
Modern control:
Convert ODE to state equation; Apply Pole Placement, Robust control, …
Nonlinear control: Apply Lyapunov’s stability criterion


Control
Engineering


Слайд 15Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
Definition of state

space representations



Control
Engineering


Слайд 16Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
A first example

of Modeling: DC Motor



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Engineering


Слайд 17Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
A second example

of Modeling: Suspension



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Engineering


Слайд 18Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
A second example

of Modeling: Suspension (2)



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Engineering


Слайд 19Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
Linear systems :

transfer function

Equivalence transfer function - state space representation


Control
Engineering


Слайд 20Month 200X
2009 Subject Name Automotive Automatic Control
Page 2
State-Space Representations of

Transfer-Function Systems

Go to Ogata Book 723


Control
Engineering


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