Ja Hwa Electronics Co., Ltd.

Erae Ams Co., Ltd.

Sang Seob Lee

Chul Soon Park

Je Seung Yeon

Seung Ryong Baek

Jung Il Lee

Kyoung Yong Lee

A motor control method for controlling a motor of an electric power assisted steering system includes: generating a low pass torque signal and a high pass torque signal, respectively; generating a low frequency assist torque signal using the low pass torque signal and the vehicle speed; generating a high frequency assist torque signal using a high pass torque signal and the vehicle speed; generating a torque command signal using a sum of the low frequency assist torque signal and the high frequency assist torque signal; and generating a voltage output signal for driving the motor using the torque command signal.

Method and apparatus for controlling motor of electric power assisted steering system

An apparatus for driving an optical system with a memory unit includes a main frame having an optical system; a base frame configured to accommodate the main frame; a driving unit configured to move the main frame in a first direction perpendicular to an optical axis with respect to the base frame; and a memory unit configured to store first reference position information that is information about a position at which the optical system is aligned in the first direction.

Apparatus for driving optical system with memory unit

Growing community of inventors

Daegu, South Korea

Sang Seob Lee