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Speed 2008/09 3 2008/09 MECH466 : Automatic Control 4 1 History of Automatic Control History of Automatic Control Edward Routh (1831-1907)
(1831English mathematician (born in
University of Cambridge
Routh stability criterion
Year: 1877 Adolf Hurwitz (1859-1919)
Hurwitz stability criterion
Analysis of stability for ordinary
Equivalent to Routh criterion, but
presented in a different form Analysis of stability for ordinary
Equivalent to Hurwitz criterion
(What you learned is Routh’s criterion.)
2008/09 MECH466 : Automatic Control 5 History of Automatic Control 2008/09 Harold S. Black (1898-1983)
(1898American electrical engineer
Bell Telephone Laboratories
Negative feedback amplifier
Year: 1927 Lyapunov method
Applicable to nonlinear, timeApplicable
timevarying systems, too.
(Normally taught in
Nonlinear Control Course....
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- Winter '09
- Mechanical Engineering