In a return control unit, a driver steering correcting unit calculates a correction amount outputted in relation to any calculation quantity in a calculation process for a return control amount, based on a steering torque and steering wheel position-related information, such that the return control amount is maintained or increased when a steering torque is applied in a returning direction towards a neutral position of a steering wheel, and the return control amount is reduced when the steering torque of which an absolute value is equal to or greater than a predetermined critical value is applied in a turning direction away from the neutral position of the steering wheel. The steering wheel position-related information is information of which a value when the steering wheel is at the neutral position is zero and the value is positive or negative based on a steering wheel position in relation to the neutral position.