| 摘要 |
A motor-driven power steering apparatus is provided with a self-aligning torque computing means for computing a self-aligning torque based on of a steering angle and a vehicle speed, a friction torque computing means for computing a friction torque in accordance with a steering angle change from a steering angular velocity, an apparent steering torque computing means for computing an apparent steering torque from the friction torque and a steering torque, and a steering torque feedback control means for driving and controlling an assist motor in such a manner that a difference between the self-aligning torque and the apparent steering torque becomes 0.
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