ELECTRIC POWER STEERING DEVICE

PROBLEM TO BE SOLVED: To provide an electric power steering device capable of restraining abnormal noise when a feedback limit such as end-pad protection control is canceled, and the deterioration of steering feeling. SOLUTION: This electric power steering device limits the feedback control of a current control part 63 by executing a duty limit control for limiting a duty of a pulse width modulation signal as end-pad protecting control when a steering mechanism reaches a steering limit, and restrains a rapid change of a driving current of an electric motor 12 when limit control is canceled by resetting a past value of an integration value of a current control part 63 to a constant value while executing the duty limit control, and resetting the past value to a constant value when the duty limit control is canceled. COPYRIGHT: (C)2009,JPO&INPIT