Electric Power Steering Device

An electric power steering device comprising:

• a current command value calculation unit configured to calculate a current command value on the basis of at least a steering torque input to a steering mechanism;
• an electric motor configured to generate a steering assist torque to be applied to a steering shaft of the steering mechanism;
• a motor control unit configured to control and drive the electric motor on the basis of the current command value;
• a steering operation information detection unit configured to detect steering operation information as information concerning an operation of a steering wheel by a driver;
• a position information acquisition unit configured to acquire position information of a vehicle equipped with the electric power steering device;
• an operation information storage unit configured to store, in a storage device, steering operation state information obtained by associating the steering operation information detected by the steering operation information detection unit with the position information upon detection of the steering operation information;
• and
• an operation assist unit configured to refer to the steering operation state information in the storage device to obtain the steering operation state information corresponding current position information which is the position information acquired currently and to execute operation assist processing for assisting the driver in operating the steering wheel based on the obtained steering operation state information as reference so as not to largely depart from the reference.