| Summary: | 碩士 === 國立勤益科技大學 === 電機工程系 === 101 === The main purpose of the thesis is to control the chaos of the automotive suspension systems to enhance the car’s stability and comfort. This study is divided into three parts, namely modeling, controller design and physical verification. First, this study establishes the non-linear model of the automotive suspension systems to determine the chaos by using the phase plane trajectory, time response and Lyapunov index of the system. It integrates the non-linear model into master-slave system for control by using the sliding mode control and fuzzy control to design the fuzzy sliding mode controller, in order to realize the synchronization of the master-slave system. Moreover, it uses Lyapunov in stability analysis. The use of fuzzy control can improve the shortening of service life of the controller components caused by too fast and frequent switching of the impending control of the sliding mode. Finally, computer simulation is conducted, and the FPGA design fuzzy controller is coupled with the sliding mode controller circuit to verify the designed fuzzy sliding mode controller in the realization of the master-slave system synchronization.
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