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Adaptive integrated control design for vehicle dynamics using phase-plane analysis
Shahram Azadi,Masoud Naghibian,Reza Kazemi 대한기계학회 2015 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.29 No.6
This study designs an adaptive integrated control. The control system includes two strategies of individual optimal linear quadraticregulator: one to improve vehicle maneuverability and another to improve vehicle stability. The integration is based on the vehicle dynamicvariables in the phase plane. The controller can adapt itself by changing gains and integration law as vehicle mass and road frictionchange. The proper gains and integration law are determined for four special conditions: dry road-curb weight, dry road-gross weight,wet road-curb weight, and wet road-gross weight. These conditions are then expanded for every value of vehicle mass and road frictionthrough fuzzy logic and Sugeno estimator. Simulation results show that considerable improvements are achieved in vehicle dynamicperformance through the adaptive integrated control system.