Fuzzy Adaptive PID Control of a New Hydraulic Erecting Mechanism
Abstract: Conventional
erecting mechanism is cumbersome and the erecting velocity is slow, so a new
hydraulic erecting mechanism is introduced in this paper. But it has two
problems. First is the cooperation problem between the erect cylinder and the
horizontal cylinder. Second, the nonlinearities and uncertainties exist in the
system make the control precision poor. So the combined simulation model is
built based on the software AMESim and Simulink. And from this model, the best
cooperation time is confirmed. Further, the fuzzy adaptive PID controller is
introduced to improve the control performance aiming to the nonlinearities and
uncertainties. The fuzzy inference rules and parameters of the controller are
also presented in this paper. Experiment results show that the cooperation time
which received from the simulation is correct, and the fuzzy adaptive PID
controller has nice tracking performance compared to the conventional PID
controller and fuzzy controller.
Author: Liang Li, Jian Xie,
Wei Li
Journal Code: jptkomputergg130102
