Patent ID: 11891131
Assignee: HYUNDAI MOBIS CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 5:
6. A vibration reduction method of an MDPS, comprising:
detecting, by an adaptive control module, an error signal, generated by disturbance, from a torque signal of a torque sensor which senses torque of the MDPS, and generating a compensation signal for compensating for a disturbance signal by using the error signal;
generating, by an adaptive filter module, a filter signal by using a vibration frequency of the disturbance of the MDPS, removing a disturbance component of a current command outputted from an MDPS controller on a basis of the filter signal, and outputting the current command in which the disturbance is suppressed; and
generating, by the MDPS controller, a final current command on a basis of the compensation signal and the current command in which the disturbance is suppressed, and controlling a motor of the MDPS according to the final current command.