Version 1.0, August 31, 2001, Copyright, Hugh Jack 1993-2001

8. FUZZY LOGIC

 

· Well suited when we can't get an exact mathematical model (like we did with Laplace transforms)

 

· Based on a set of rules, and some fuzzy descriptions about the problem.

 

· We examine each rule, and each set, and then determine how much each rule applies, and then perform an operation as a combination of the rule effects.

 

· The fuzzy logic controller works like the PID before (except it does more)

 

 

 

 

 

 

 

 

 

 

· This methods has been applied to control of servo motors [Li and Lau, 1988].

 

 

8.1 COMMERCIAL CONTROLLERS

8.2 REFERENCES

8.3 PRACTICE PROBLEMS