ELECTRIC POWER STEERING DEVICE CONTROLLER

摘要

An electric power steering device controller includes: a steering auxiliary instruction value calculation unit for calculating a steering auxiliary instruction value according to a torque signal; and a current control drive unit for calculating a voltage instruction value according to the steering auxiliary instruction value and controlling a motor. An assist force is given to a steering system. The controller further includes a self aligning torque measurement unit for inputting an angular velocity and angular acceleration of the motor, the steering auxiliary instruction value, and the torque signal so as to obtain a self aligning torque. The self aligning torque obtained by the self aligning torque measurement unit is fed back to the steering auxiliary instruction value via a feedback unit.