Electric power steering apparatus

摘要

The electric power steering apparatus of the present invention is to assisting steering based on an output of a torque sensor which detects a steering torque, the apparatus cumulates the outputs at each detection for a predetermined period of time, then compares the cumulated value with a predetermined value, and detects a displacement of the torque sensor's neutral point based on the comparison result. Therefore it is possible to detect even a small displacement of the torque-sensor neutral point.