Chang S., Chen S.

In this paper, we will verify chaotic motion first and go on to the chaotic control in an automotive wiper system, which consists of two blades driven by a DC motor via one link. The complex nonlinear behaviors may be observed more thoroughly over a range of parameter values by the bifurcation diagram. Next, by using the estimation of the largest Lyapunov exponent, the periodic and chaotic motions can be identified. Finally, a method will be suggested to control a chaotic automotive wiper system. That is to apply another external input, called a dither signal, into the system. We also present some simulation results to demonstrate the feasibility of the proposed method.