Patent ID: 6335601
Filing Date: 2002-01-01
Classification: B60S

Abstract:
A wiper control device for controlling a wiper of a vehicle comprising:a wiper switch operable for selectively generating a low-speed command signal or a high-speed command signal; a wiper motor for actuating a wiper blade reciprocatively between lower and higher turning positions by low-speed forward rotation or high-speed reverse rotation; a position switch for generating a position signal according to a position of the wiper blade; a controller for generating a low-speed driving signal in response to the low-speed command signal generated from said wiper switch and the position signal generated from said position switch, and a high-speed driving signal in response to the high-speed command signal generated from said wiper switch and the position signal generated from said position switch; and a motor driving circuit provided with a plurality of switching means for supplying an electric current to the wiper motor in a low-speed forward-rotational direction in response to the low-speed driving signal generated from said controller, and supplying an electric current to the wiper motor in a high-speed reverse-rotational direction in response to the high-speed driving signal generated form said controller; wherein said controller executes control to change the rotational direction of said wiper motor at the time when the wiper blade arrives in the lower turning position or the upper turning position after the low-speed command signal or the high-speed command signal generated from said wiper switch is switched over into the high-speed command signal or the low-speed command signal, respectively.