Abstract
A fuzzy control system which adapt to nonlinear characteristics of control system was constituted for the purpose of intelligent control of tractor implement. A designing method of fuzzy controller is proposed by which adaptive adjustment to the nonlinear characteristics of hydraulic driving and also to disturbance is realized easily. This fuzzy controller has original control rules, and the adaptive adjustment for the disturbance is realized simply by shifting the membership function. An adjustment method of the membership function that adapts to the disturbance was acquired by computer simulation. The efficacy of fuzzy control for nonlinear system was also confirmed by comparing with the P control method that was used in Part 1 and 2 under the same nonlinear condition.
