Electric power steering device and control method utilized for controlling said electric power steering device

摘要

The present invention provides an electric power steering device capable of attaining the expected control and control characteristics while using phase compensator. The device comprises a target current setting unit including a compensation unit having an inertia compensating unit for outputting an inertial compensating current value and a damper control unit for outputting a damping control current value. The device further comprises a compensation unit for outputting a compensation current value; a basic assist current setting unit for outputting a basic assist current value; and a phase compensating unit connected with the downstream stage of the basis assist current setting unit for outputting a target current value by performing a phase compensation of an added current value while receiving no influence from the dead zone or the characteristic break points of an assist table for setting the basic assist current value. <IMAGE>