Abstract

In this paper, an Adaptive Fuzzy Sliding Mode Control (AFSMC) was proposed for speed control of a hydraulic pressure coupling drive. The AFSMC combined a direct adaptive fuzzy scheme and a fuzzy sliding scheme in a new structure to reduce the tracking error and the chattering of the control effort. Experiments were performed with different controllers, the AFSMC, the traditional Sliding Mode Control (SMC) and the PID controllers, and different of operating conditions. Then, the experimental results were brought into comparison to evaluate the effectiveness of the AFSMC controller from the view points of stability, performance and robustness of the closed loop system.

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