Wiper control method and wiper control device

A wiper control device for controlling an operation of a wiper device, wherein the wiper device comprises:

• a wiper blade disposed on a windshield of a vehicle;
• a wiper arm to which the wiper blade is attached and is driven back and forth between an upper inversion position and a lower inversion position set on the windshield;
• and
• a motor for driving the wiper arm, and
• wherein the wiper control device comprises:
• a motor load calculation part that detects a load generated in the motor when the wiper blade moves on the windshield;
• a motor load determination part that compares an outward load generated in the motor when the wiper blade moves from the lower inversion position to the upper inversion position with a predetermined threshold value;
• and
• a wiper operation correction part that corrects an operation of the wiper arm by a first correction value set based on the outward load in response to a determination of the outward load of the motor exceeding the predetermined threshold value, and corrects the operation of the wiper arm by a second correction value set based on a wind load of the motor generated by a wind received by the vehicle during traveling in response to a determination of the outward load being less than or equal to the threshold value.