Patent ID: 7019477

Claim:
A method for controlling a wiper motor equipping a wiper device in order to drive at least one wiper blade moving across a windshield according to an alternating path between a first and second end-of-travel positions, comprising the steps of: during a first initialization step, detecting first and second end-of-travel stops such as determined by the construction of the associated wiper device; then determining from the first and second end-of-travel stops first and second end-of-travel test zones, the first end-of-travel test zone located between the first end-of-travel stop and a distance from the first end-of-travel stop toward the opposing second end-of-travel stop, and the second end-of-travel test zone located between the second end-of-travel stop and a distance from the second end-of-travel stop toward the opposing first end-of-travel stop, and in each of the first and second test zones the position of a software stop on which the blade changes wiping direction in normal operation; during a normal operation step, detecting the position of the wiper blade relative to the first and second end-of-travel test zones, in order to determine the change of wiping direction; realizing during at least one passage of the wiper blade in a test zone, a variation of the position of one end-of-travel software stop of the wiper blade; and self-adapting of the end-of-travel software stop in relation to path of the wiper blade.