Nsk Corporation

Takuya Masuko

Takayoshi Sugawara

Hideki Sawada

Tomoki Fukuda

An electric power steering system is provided that is capable of performing assist control in which a change in a steering feel is reduced. The electric power steering system includes a current command value calculating unit configured to output a current command value Iref1 in accordance with steering torque and a vehicle speed on the basis of an assist map. The current command value calculating unit includes a vibration component reducing section configured to reduce a vibration component resulting from vibrations for warning that have been transmitted to a steering wheel and included in the steering torque.

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Tokyo, Japan

Takuya Masuko