Abstract:

An intelligent windscreen wiper system using a distributed control scheme based on LIN bus is designed with MC9S12DG128 as the main controller and MM908E625 as the wiper controller to improve the security and intelligence of the wiper system.The MCU changes the signal of touched screen into a LIN command to control the start-stop of the wiper,and controls the swing frequency of wiper automatically by detecting the volume of rainfall via infrared sensors.Its uses do not require the driver's manual operation.The experimental results show that the system achieves effective intelligent control over automotive wiper according to the rainfall.It has the advantages of good security,high reliability and low cost.

Key words: automotive electronics;LIN bus;windscreen wiper;MC9S12DG128