International Journal of Control, Automation and Systems 2019; 17(7): 1708-1716
Published online July 3, 2019
https://doi.org/10.1007/s12555-018-0593-9
© The International Journal of Control, Automation, and Systems
Control issue is the key for applying hydraulic hybrid system, especially for common pressure rail (CPR) system which has the huge potential to enhance efficiency. In the paper, the mathematical model of hydraulic cylinder speed control system using new hydraulic transformer is established. Then an adaptive fuzzy sliding mode controller based on Pi-sigma fuzzy neutral network is designed to solve the problem of parameter uncertainty and nonlinearity without establishing the precise model. Furthermore, compared to PID and conventional adaptive fuzzy system, the controller proposed can achieve good control performance and strong robustness in the presence of time-varying uncertainty.
Keywords Hydraulic hybrid system, hydraulic transformer, pi-sigma fuzzy neutral network, sliding mode control
International Journal of Control, Automation and Systems 2019; 17(7): 1708-1716
Published online July 1, 2019 https://doi.org/10.1007/s12555-018-0593-9
Copyright © The International Journal of Control, Automation, and Systems.
Wei Shen* and Jiehao Wang
University of Shanghai for Science and Technology
Control issue is the key for applying hydraulic hybrid system, especially for common pressure rail (CPR) system which has the huge potential to enhance efficiency. In the paper, the mathematical model of hydraulic cylinder speed control system using new hydraulic transformer is established. Then an adaptive fuzzy sliding mode controller based on Pi-sigma fuzzy neutral network is designed to solve the problem of parameter uncertainty and nonlinearity without establishing the precise model. Furthermore, compared to PID and conventional adaptive fuzzy system, the controller proposed can achieve good control performance and strong robustness in the presence of time-varying uncertainty.
Keywords: Hydraulic hybrid system, hydraulic transformer, pi-sigma fuzzy neutral network, sliding mode control
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