Control method for wiper apparatus

摘要

The duty ratio of driving voltage output to each wiper motor is required to be set according to the following conditions; (a) while each wiper blade is moved in an interval from a starting position to a predetermined first wiping position in upward operation, the duty ratio of a wiper motor on the side of a driver's seat is set so that the duty ratio is larger than the duty ratio of a wiper motor on the side of a passenger seat; and (b) while each wiper blade is moved in another interval from each upper return position to a predetermined second wiping position in return operation, the duty ratio of the wiper motor on the passenger seat side is set so that the duty ratio is larger than the duty ratio of the wiper motor on the driver' s seat side. <IMAGE>