The phenomenon of the second order steady modes in the relay control systems with time delay

1997 ◽  
Author(s):  
L. M. Fridman ◽  
E. M. Fridman ◽  
E. I. Shustin
Keyword(s):  
Time Delay ◽  
Control Systems ◽  
Second Order ◽  
Relay Control

Steady Modes in Relay Control Systems With Time Delay and Periodic Disturbances

2000 ◽  
Vol 122 (4) ◽  
pp. 732-737 ◽  
Author(s):  
E. Fridman ◽  
L. Fridman ◽  
E. Shustin
Keyword(s):  
Time Delay ◽  
Control Systems ◽  
Control Element ◽  
Fuel Injectors ◽  
Relay Control ◽  
First Order ◽  
Direct Adaptive Control ◽  
Periodic Disturbances ◽  
Automobile Engines ◽  
Underwater Manipulator

We study stability of slow oscillatory motions in first order one- and two-dimensional systems with delayed relay control element and periodic disturbances, which serve as models of stabilization of the fingers of an underwater manipulator and of control of fuel injectors in automobile engines. Various types of stability observed are used to design a direct adaptive control of relay type with time delay that extinguishes parasite auto-oscillations in these models. [S0022-0434(00)04004-1]

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