Bi-level fuzzy force shaping controller of a exible wiper system

In exible manipulators, the residual vibration and unwanted transient deection are critical issues that are highly correlated with the velocity operation of the system; as the velocity increases the control of such systems become more delicate and dicult. the wiper blades of automobiles are among those types of exible system that are required to be operated at quite high velocity to be efficient under high load conditions. this causes some annoying noise and deteriorated vision for travellers. the modelling and control of the vibration and low frequency noise of an automobile wiper blade is the focus of this study. the exible vibration and noise model of a wiper system is estimated using an artificial intelligence system identification approach. a controller approach is also developed to suppress the low frequency noise of a wiper end-point, while maintaining the desired position accuracy of the hub angle, simultaneously.