The invention discloses a rotating-speed-estimation-based self-adaptive fuzzy and sliding-mode control method of an ESC, and belongs to the field of automobile hydraulic power assisted steering systems. The control method includes the following steps: 1, an outer rotor of the ESC is connected with an engine, an inner rotor of the ESC is connected with a steering pump, and an ESC type electronic control hydraulic steering system is built; 2, a rotating speed signal of the steering pump in the ESC type electric control hydraulic steering system is collected through an ECU; 3, an ESC dynamic equation is built based on the rotating speed in the step 2, wherein a mathematical model of the ESC under the d-q axis is built; and 4, based on the mathematical model in the step 3, a rotating-speed-estimation-based self-adaptive fuzzy and sliding-mode controller is designed. According to the rotating-speed-estimation-based self-adaptive fuzzy and sliding-mode control method, the beneficial effects of self-adaptive fuzzy control and fuzzy sliding-mode control are adopted, satisfied system responses are generated through a dynamic self-adaptive law, interference is obviously eliminated, and buffeting is reduced.
Rotating-speed-estimation-based self-adaptive fuzzy and sliding-mode control method of ESC
2015-12-02
Patent
Elektronische Ressource
Englisch
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