Electric power steering fuzzy aligning method

The invention discloses an electric power steering fuzzy aligning method. The method relates to the technical field of electric power steering, and comprises the following steps: S01, setting a power-assisted current threshold value of EPS, performing real-time integration on power-assisted current when the power-assisted current is increased, and performing real-time integration on return currentobtained in the previous period when the power-assisted current is smaller than the power-assisted current threshold value; S02, enabling an integral result obtained in the step S01 to be equivalentto a steering wheel angle, and obtaining a current return basic current and a return current through table look-up; S03, calibrating adjustment factors of left alignment and right alignment of the steering wheel, and correcting the alignment current obtained in the step S02 by using the adjustment factors; and S04, superposing the boosting current and the corrected return current in the step S03 into a target current to pe