Disclosed are a device and a method for reducing vibration of a steering wheel. According to the present invention, the device for reducing vibration of a steering wheel includes: a frequency detecting unit detecting the number of reversal steering by the reverse steering from a steering angular speed or a motor angular speed for predetermined setting time whenever a predetermined setting period is reached, wherein the frequency detecting unit also detects the frequency of vibration or noise of a steering wheel by the detected number of the reversal steering; a vibration property detecting unit detecting the level of the vibration or the noise by the vibration of the steering wheel from a motor current or column torque for the setting time every setting period; an abnormal vibration detecting unit detecting the abnormal vibration of the steering wheel using at least one among the frequency of the vibration or the noise detected by the frequency detecting unit and an average level of the noise or the vibration detected by the vibration property detecting unit; and a band stop filter filtering the vibration noise of the motor current or the column torque in accordance with a detection result of the abnormal vibration detecting unit.

    스티어링 휠 진동 저감 장치 및 방법이 개시된다. 본 발명의 스티어링 휠 진동 저감 장치는 기 설정된 설정주기가 도래할 때마다 기 설정된 설정시간 동안 조향 각속도 또는 모터 각속도로부터 반전조타에 의한 반전 조타 횟수를 검출하고, 검출된 반전 조타 횟수를 통해 스티어링 휠의 노이즈나 진동의 주파수를 검출하는 주파수 검출부; 설정주기마다 설정시간 동안 컬럼토크 또는 모터전류로부터 스티어링 휠의 진동에 의한 노이즈나 진동의 크기를 검출하는 진동특성 검출부; 주파수 검출부에 의해 검출된 노이즈나 진동의 주파수, 및 진동 특성 검출부에 의해 검출된 노이즈나 진동의 평균 크기 중 적어도 하나를 이용하여 스티어링 휠의 이상진동을 검출하는 이상진동 검출부; 및 이상진동 검출부의 검출 결과에 따라 컬럼토크 또는 모터전류의 진동 노이즈를 필터링하는 밴드 스톱 필터를 포함하는 것을 특징으로 한다.


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    Title :

    APPARATUS AND METHOD FOR REDUCING VIBRATION OF STEERING WHEEL


    Additional title:

    스티어링 휠 진동 저감 장치 및 방법


    Contributors:

    Publication date :

    2019-09-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS , Scheinwiderstandsnetzwerke, z.B. Resonanzkreise



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