There is provided a method for controlling an opposed wiping type wiper apparatus having a pair of wiper blades (2a,2b) driven by also a couple of motors (3a,3b), respectively. The wiper apparatus includes detecting means (11a,11b) for detecting the angular position of the each wiper blade (2a,2b), calculating means for calculating the angular distance of one wiper blade (2a) relative to the other wiper blade (2b), memory means for memorizing therein a reference table of target angular distances in advance for the wiper blades (2a,2b), and control means (12) for controlling the pair of wiper blades (2a,2b) so that the angular distance of each of the wiper blades (2a,2b) is brought close to the corresponding target angular distance.
The wiper apparatus also may control the wiper blades (2a,2b) not only the angular distance relative to the other but desired velocity. In this case, the wiper apparatus further includes a reference table of target velocities and the wiper blades (2a,2b) are controlled based on the target angular distance and target velocity.