Dealing with a LQR controller surface subject to power and torque constraints, is an issue of nonlinear problem that is difficult to implement. This paper employs a fuzzy controller surface to replace the LQR surface subject to power and torque constraints by using class stacking, least square and Sugeno-type fuzzy inference mode. Through this type of transformation, called “Optimal fuzzy controller mapped from LQR”, control of the system remains optimal.


LQR FLC Fuzzy Sugeno Optimal Class stacking 


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Copyright information

© IFIP International Federation for Information Processing 2011

Authors and Affiliations

  • Ping-Ho Chen
    • 1
  • Kuang-Yow Lian
    • 2
  1. 1.Department of EETungnan UniversityTaipeiTaiwan
  2. 2.Department of EENational Taipei University of TechnologyTaipeiTaiwan

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