Abstract: A windshield wiper control unit that controls a windshield wiper based on the position of an operation member, includes: an electric value detection unit that detects an electric value that continuously changes based on the position of the operation member; a setting unit that sets a reference electric value range that is a portion of a variation range of the electric value; a determination unit that determines whether the electric value detected by the electric value detection unit falls within the reference electric value range; and a position determination unit that determines the position of the operation member based on the reference electric value range. When the detected electric value falls outside the reference electric value range, the reference electric value range is updated in such a manner that the electric value, which falls outside the pre-update reference electric value range, falls within the post-update reference electric value range.

Abstract: A windshield wiper control unit that controls a windshield wiper based on the position of an operation member, includes: an electric value detection unit that detects an electric value that continuously changes based on the position of the operation member; a setting unit that sets a reference electric value range that is a portion of a variation range of the electric value; a determination unit that determines whether the electric value detected by the electric value detection unit falls within the reference electric value range; and a position determination unit that determines the position of the operation member based on the reference electric value range. When the detected electric value falls outside the reference electric value range, the reference electric value range is updated in such a manner that the electric value, which falls outside the pre-update reference electric value range, falls within the post-update reference electric value range.