Hyundai Mobis Co., Ltd.

Kwang Woong Kim

In Hyuk Kim

Kyu Ha Kim

Pil Woo Lee

Han Wul Kim

A vibration reduction apparatus of an MDPS may include: an adaptive control module configured to detect an error signal, generated by disturbance, from a torque signal of a torque sensor which senses torque of the MDPS, and generate a compensation signal for compensating for a disturbance signal by using the error signal; and an adaptive filter module configured to generate a filter signal by using the vibration frequency of the disturbance of the MDPS, remove a disturbance component of a current command outputted from an MDPS controller, on the basis of the filter signal, and output a current command in which the disturbance is suppressed. The MDPS controller may generate a final current command on the basis of the compensation signal and the current command in which the disturbance is suppressed, and control a motor of the MDPS according to the final current command.

Vibration reduction apparatus and method of motor driven power steering

An apparatus for reducing vibration of a steering wheel may include: a judder compensation logic unit configured to calculate judder compensation torque for removing a judder which occurs in a steering wheel of a vehicle, based on one or more of a motor current, vehicle speed and vehicle wheel speed; and a judder compensation diagnosis unit configured to determine an operation state of the judder compensation logic unit based on one or more of the vehicle wheel speed, steering torque and a brake state.

Growing community of inventors

Yongin-si, South Korea

Kwang Woong Kim